KR102614962B1 - Grouped hole inspection device - Google Patents

Abstract

The porous hole inspection device according to the present invention is a porous hole inspection device that includes a detection unit that detects the presence or absence of defects in the holes in an object in which a plurality of holes are formed. A measuring unit connected to the unit and capable of moving from an initial position outside the hole to a measuring position inside the hole, and a shunt connecting the measuring units to each other and allowing each measuring unit to move to the measuring position simultaneously. Contains units.

Description

Porous hole inspection device {GROUPED HOLE INSPECTION DEVICE}

The present invention relates to a porous hole inspection device. More specifically, the present invention relates to a porous hole inspection device, and more specifically, to specify a plurality of holes in an object as a group, and to confirm defects in the above-mentioned group when at least one hole among the grouped holes is defective. It is about inspection equipment.

Generally, a hole inspection device is used to check the presence or absence of a hole formed in an object.

However, when there are many holes formed in the object, the conventional porous hole inspection device is equipped with measurement units that enter or retreat into the hole from the outside, such as an indirect sensor dog, corresponding to the number of holes, and a measurement unit that corresponds to the number of measurement units, such as a limit sensor. There was a problem in that a confirmation unit to check the presence or absence of defects had to be provided corresponding to the number of measurement units.

The present invention is an invention made to solve the problems of the prior art described above, and the porous hole inspection device of the present invention aims to include.

The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

A porous hole inspection device according to an embodiment of the present invention for achieving the above-described object is a porous hole inspection device including a detection unit that detects the presence or absence of defects in the holes in an object in which a plurality of holes are formed, a measurement unit provided corresponding to the number of holes and capable of moving from an initial position outside the hole to a measurement position inside the hole; And one side is provided to be connected to the sensing unit, and may include a shunt unit provided to connect the measurement units to each other and move each of the measurement units to the measurement position at the same time.

When at least one of the holes is defective, the shunt unit simultaneously retracts the connected measuring unit toward the initial position, thereby enabling the sensing unit to detect the defect in the hole.

The shunt unit includes a frame that arranges the measuring units according to the arrangement of the holes and transmits force evenly to the measuring units; and a wire that penetrates the arrayed measuring units to connect the measuring units to each other and transmits force to the connected sensing unit when the measuring unit is retracted by an external force.

The detection unit can detect the presence or absence of defects for each group of holes preset by the switching unit.

The sensing unit may be provided with a limiting member tilted with respect to a reference axis perpendicular to the moving direction of the measuring unit to which the wire may be connected.

The sensing unit may detect a defect in the group when the limiting member is tilted beyond a preset angle range with respect to the reference axis.

The shunting unit may further include an elastic body fixed to the frame and connected to the measuring unit to restore the retreated measuring unit to its original position.

The shunting unit may arrange the measuring unit to correspond to the hole arranged along a straight line in any one plane of the object.

The porous hole inspection device according to an embodiment of the present invention for achieving the above-described object may further include a holding unit provided between the measuring units and connected to the wire to maintain tension of the wire.

Specifically, the holding unit includes a seating member provided as a flat plate formed long in the longitudinal direction of the frame so as to be fixed to one surface of the frame and disposed between the measuring units; And a connecting member that protrudes from one side of the seating member in a direction perpendicular to the longitudinal direction of the seating member and has an end connected to the wire, the end of which is bent to pull the connected wire in the direction of the frame. there is.

The porous hole inspection device of the present invention to solve the above problems designates a plurality of holes in the object as a group and checks only the presence or absence of defects in the group, so even if multiple measurement units such as indirect sensor dogs are used, the limit sensor and There is no need to use multiple of the same confirmation units, which makes it possible to achieve lighter products, reduce manufacturing costs, and have the advantage of being able to be used for a variety of purposes because there are fewer restrictions on structural changes.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

The above-described summary as well as the detailed description of the preferred embodiments of the present application described below may be better understood when read in conjunction with the accompanying drawings.
Preferred embodiments are shown in the drawings for the purpose of illustrating the invention.
However, it should be understood that the present application is not limited to the exact arrangement and means shown.
1 is a view for explaining the overall appearance of a porous hole inspection device according to an embodiment of the present invention;
Figure 2 is a view for explaining aspects of a porous hole inspection device according to an embodiment of the present invention;
Figure 3 is a view for explaining hole inspection of a porous hole inspection device according to an embodiment of the present invention;
Figure 4 is a view for explaining an example of a shunting unit of a porous hole inspection device according to an embodiment of the present invention;
Figure 5 is a view for explaining a modified example in which the shunting unit of the porous hole inspection device according to an embodiment of the present invention is connected to a holding unit provided between measuring units;
Figure 6 is a view for explaining the tension maintenance unit of the porous hole inspection device according to an embodiment of the present invention;
Figure 7 is a view for explaining an example of an object of the porous hole inspection device according to an embodiment of the present invention;
Figures 8 and 9 are diagrams for explaining a modified example of an object having groups of holes arranged in one direction but having different heights in a porous hole inspection device according to an embodiment of the present invention;
Figure 10 is a view for explaining a modified example of an object having a group of holes formed along a closed curve in a porous hole inspection device according to an embodiment of the present invention;
Figure 11 is a diagram for explaining a modified example of an object having a group of holes formed along a curved surface in a porous hole inspection device according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention, in which the object of the present invention can be realized in detail, will be described with reference to the attached drawings.

In describing this embodiment, the same names and the same symbols are used for the same components, and additional description accordingly will be omitted.

Figure 1 is a view for explaining the overall appearance of a porous hole inspection device according to an embodiment of the present invention, and Figure 2 is a view for explaining a side of a porous hole inspection device according to an embodiment of the present invention. 3 is a diagram for explaining a hole inspection of a porous hole inspection device according to an embodiment of the present invention, and Figure 4 is a diagram for explaining an example of a shunting unit of a porous hole inspection device according to an embodiment of the present invention. , FIG. 5 is a view for explaining a modified example in which the shunting unit of the porous hole inspection device according to an embodiment of the present invention is connected to a holding unit provided between the measuring units, and FIG. 6 is a diagram according to an embodiment of the present invention. It is a drawing for explaining the tension maintenance unit of the porous hole inspection device, Figure 7 is a drawing for explaining an example of an object of the porous hole inspection device according to an embodiment of the present invention, and Figures 8 to 9 are diagrams of the present invention. It is a diagram for explaining a modified example of an object having a group of holes arranged in one direction but having different heights in a porous hole inspection device according to an embodiment of the present invention, and FIG. It is a diagram for explaining a modified example of an object having a group of holes formed along a closed curve, and FIG. 11 is a diagram for explaining a modified example of an object having a group of holes formed along a curved surface in the porous hole inspection device according to an embodiment of the present invention. This is a drawing for

As shown in Figures 1 and 3, the porous hole inspection device 10 according to an embodiment of the present invention detects a hole (H) in an object (S) in which a plurality of holes (H) are formed through the sensing unit 200. It is provided to detect the presence or absence of a defect and may largely include a measurement unit 100 and a shunt unit 300.

Here, the shape, material, etc. of the object S on which the hole H is formed may vary, which does not limit the scope of the present invention, and the sensing unit 200 can also detect the presence or absence of a defect in the hole H. If so, the detection method may vary, so it is natural that the scope of the present invention is not limited.

However, for more detailed explanation, if an example is given, the sensing unit 200 may be a limit sensor provided with a limiting member that is tilted relative to a reference axis perpendicular to the moving direction of the measuring unit 100, and the limiting member has a shunt as described later. The wire 301 of the unit 300 may be connected.

At this time, the sensing unit 200 may be provided to detect a defect in the hole (H) when the limiting member is tilted beyond a preset angle range based on the above-mentioned reference axis.

In addition, the detection unit 200 may be equipped with a control module and a communication module inside to determine whether the hole (H) is defective and notify the manager thereof. In contrast, the porous hole inspection according to an embodiment of the present invention Even if the device 10 includes a separate control unit and communication unit and is designed to determine whether the hole (H) is defective through data detected by the sensing unit 200 and notify the manager of this, all are within the scope of the present invention. It will be said that it belongs.

Here, the tilting range of the sensing unit 200 may vary and it is natural that the range of rights is not limited due to this, but for more detailed explanation, if an example is given, the limiting member is 14° to 14° based on the above-mentioned reference axis. It would be simple to design it to operate beyond 18°.

The porous hole inspection device 10 according to an embodiment of the present invention having the configuration described above may be further provided with a transfer unit 500 and a seating unit 600, and the transfer unit 500 includes the above-described components. A sensing unit 200 may be connected to a shunt unit 300, and a measurement unit 100 may be connected to the shunt unit 300.

Additionally, the transfer unit 500 may be arranged around the seating unit 600 on which the object S is seated.

Therefore, as shown in the drawing, when the transfer unit 500 moves toward the hole (H) of the object (S) seated on the seating unit (600) at a random position, the measuring unit (100) moves to the hole (H) of the object (S). It can be moved from the initial position outside the hole (H) to the measurement position inside the hole (H), and as the transfer unit 500 returns in the opposite direction, the measurement unit 100 moves to the hole (H) of the object (S). It is possible to return to the initial position outside.

Next, the measurement unit 100 and the shunt unit 300 will be described in detail with reference to FIG. 3 as follows.

As described above, the measuring unit 100 is connected to the shunt unit 300 and is located at the initial position outside the hole (H), and when the shunt unit 300 is moved by the transfer unit 500 described above, , It can be provided so that it can be moved to the measurement position inside the hole (H).

At this time, the measuring unit 100 may be provided to correspond to the number of holes H formed in the object S, and may be connected to slide in the direction of movement of the transfer unit 500 in the return unit 300.

For example, the measurement unit 100 includes a dog and a holder, and the dog may be arranged to slide inside the holder, and the holder may be fixed to the frame of the shunt unit 300, which will be described later.

For example, the measuring unit 100 is formed long enough to be inserted into the hole (H) without interfering with it, so that it can slide in the direction of movement of the transfer unit 500 in the return unit 300. At this time, it is moved by the elastic body 380 to be described later. By being fixed, when an external force is transmitted, it can retreat from the connection position in the opposite direction of the external force and return again as described later when the external force is released.

Therefore, when there is no hole (H) in the preset position of the object (S) where the hole (H) should be, the measuring unit (100) contacts the object (S) and an external force is generated in the direction opposite to the movement of the measuring unit (100). Due to this occurrence, the transfer unit 300 may retreat.

At this time, the shunt unit 300 connects the above-described measurement units 100 to each other, and the connected side is connected to the detection unit 200 again, so that each measurement unit 100 is measured simultaneously by the shunt unit 300. It can be moved to a location, and when multiple holes (H) with a preset arrangement are designated as one group in the object (S), if at least one hole (H) among the grouped holes (H) is defective, the above-mentioned You can check the group's defects.

Specifically, as described above, the switching unit 300 performs connected measurement when at least one hole (H) formed in the object (S) is defective, that is, when an external force occurs in the measuring unit (100) as described above. By simultaneously retracting the unit 100 toward the initial position, the sensing unit 200 can detect defects in the hole (H).

To this end, as shown in FIG. 4, the shunting unit 300 may specifically include a frame and a wire 301.

The frame arranges the measuring units 100 according to the arrangement of the holes (H) and is connected to the above-described transfer unit 500, so that the force resulting from the movement of the transfer unit 500 is equally transmitted to the measuring unit 100. You can.

At this time, the wire 301 may be provided to connect the measuring units 100 to each other by penetrating the arranged measuring units 100. As described above, the measuring unit 100 is damaged by external force generated by the defective point described above. When it retracts, force can be transmitted to the connected sensing unit 200.

Here, the shape structure of the frame can be arranged in various forms corresponding to the arrangement of the holes (H), and it is natural that the scope of the present invention is not limited by this.

However, for more detailed explanation, as an example, the frame is provided as a single frame along the arrangement of the holes (H) to support and fix the measurement unit 100, and as shown in the drawing, a plurality of measurement units are arranged. The fixing force can be strengthened by supporting and fixing multiple points of (100).

For example, when the arrangement of the holes (H) is formed along a straight line, that is, when a group of holes (H) are arranged along a straight line, the frame may include a lower member 340 and an upper member 320. and the measurement units 100 can be firmly fixed between the lower member 340 and the upper member 320.

The wire 301 also penetrates the similarly arranged measuring units 100 to connect the measuring units 100 to each other, and can transmit force to the connected sensing unit 200 when the measuring unit 100 is retracted by an external force. Materials, diameters, etc. may vary, and it is natural that this does not limit the scope of the present invention.

However, for more detailed explanation, as an example, the wire 301 may have a diameter of 1 mm to 5 mm, and may preferably have a diameter of 3 mm.

Additionally, the wire 301 may be made of high carbon steel wire or stainless steel wire.

Furthermore, a position fixing member may be formed on the outer peripheral surface of the wire 301 so that each connection point of the wire 301 connected through the measuring unit 100 does not change even when the measuring unit 100 moves.

For example, the wire 301 may be provided with protrusions formed in a direction diagonal to the longitudinal axis to prevent the wire 301 from leaving the measuring unit 100.

Accordingly, the sensing unit 200 can detect the presence or absence of defects for each group of holes H preset by the switching unit 300 having the configuration described above.

As described above, the sensing unit 200 may include a limiting member, and the wire 301 may be connected so that the limiting member is tilted based on a reference axis perpendicular to the moving direction of the measuring unit 100, and the reference axis may be connected to the sensing unit 200. If the tilt exceeds the preset angle range, a defect in the group can be detected.

At this time, the limiting member may be arranged to operate when the angle exceeds 14° to 18° based on the above-mentioned reference axis.

In addition, the limiting member is spaced a preset distance from one end to form a through hole (H) to which the wire 301 is connected, and the total length from one end to the other end on the opposite side and the distance ratio from one end to the through hole (H) are 1:0.2. It can be prepared as much as possible.

The shunt unit 300 having the above-described configuration may further include an elastic body 380.

As described above, the elastic body 380 is fixed to the frame and connected to the measuring unit 100, so that the receding measuring unit 100 can be restored to its original position.

For example, the elastic body 380 is provided in a spiral shape on one side to partially surround the dog of the measuring unit 100, and the other side is connected to the frame or holder of the measuring unit 100, so that the measuring unit 100 can be held in the holder. If it retreats, it can be returned to its original position.

As shown in FIG. 3, the holes H are arranged along a straight line in one plane of the object S, and the shunt unit 300 arranges the measurement unit 100 to correspond to the arranged holes H. You can.

However, when connected as shown in FIG. 3, even if the measuring unit 100 retracts due to the stretching of the wire 301, force is not transmitted to the sensing unit 200, which may cause malfunction.

For example, as the distance away from the central sensing unit 200 increases, malfunctions due to sagging of the wire 301 may become more frequent.

Therefore, the porous hole inspection device 10 according to an embodiment of the present invention may further include a holding unit 400.

Specifically, the holding unit 400 may be provided between the measuring units 100 and connected to the wire 301 to maintain the tension of the wire 301, as shown in FIG. 5 .

For example, the holding unit 400 may include a seating member and a connecting member.

The seating member may be provided as a flat plate formed long in the longitudinal direction of the frame and fixed to one surface of the frame.

At this time, the seating member may be disposed between adjacent measurement units 100.

At this time, the connecting member may protrude from one side of the seating member in a direction perpendicular to the longitudinal direction of the seating member and its end may be connected to the wire 301.

Here, the end of the connecting member may be provided in a form that is bent toward the frame based on a direction perpendicular to the longitudinal direction of the seating member so that tension can be maintained by pulling the connected wire 301 in the direction of the frame.

Due to the holding unit 400 having the above-described configuration, the measuring unit 100 is configured to correspond to the hole H arranged along a straight line in any one plane of the object S as described in FIGS. 1 to 7. When arranged, including the measurement unit 101 disposed at the edge, the probability of malfunction can be reduced even if the location of the measurement unit 100 is far away from the sensing unit.

In addition, by disposing the holding unit 400 between the measuring units 100 in the porous hole inspection device 10 according to an embodiment of the present invention, the objects are aligned with each other in one direction as shown in FIGS. 8 and 9. Even if the objects S-1 and S-2 have different heights, the wire 301 can maintain a constant tension.

In addition, as shown in FIG. 10, the hole H is arranged along a closed curve in the object S-3, or the hole H is arranged on the curved surface of the object S-4 as shown in FIG. 11. Even in this case, the tension of the wire 301 can be kept constant without changing the frame, thereby increasing versatility.

Therefore, the porous hole inspection device of the present invention specifies a plurality of holes in the object as a group and only checks the presence or absence of defects in the group, so even if a plurality of measurement units such as an indirect sensor dog are used, a plurality of confirmation units such as a limit sensor are used. Since there is no need to use it, the product can be made lighter, manufacturing costs can be reduced, and there are fewer restrictions on structural changes, so it can be used for a variety of purposes.

We have looked at preferred embodiments of the invention, and it is obvious to those skilled in the art that, in addition to the embodiments described above, the present invention can be embodied in other specific forms without departing from its spirit or scope. will be.

Therefore, the above-described embodiments are to be regarded as illustrative and not restrictive, and thus the present invention is not limited to the above description but may be modified within the scope of the appended claims and their equivalents.

10: Porous hole inspection device
S; object
H: hole
200: detection unit
100: measuring unit
300: Transfer unit
301: wire
320: Upper frame
340: lower frame
380: elastic body
400: Maintenance unit
500: transfer unit
600: Seating unit

Claims (10)

A porous hole inspection device including a detection unit that detects the presence or absence of defects in the holes in an object in which a plurality of holes are formed,
a measurement unit provided in the object corresponding to the number of holes and capable of moving from an initial position outside the hole to a measurement position inside the hole; and
One side is provided to be connected to the sensing unit, and includes a switching unit provided to connect the measuring units to each other and move each measuring unit to the measuring position at the same time,
The shunting unit is,
When at least one of the holes is defective, the sensing unit detects the defect of the hole by simultaneously retracting the connected measuring unit toward the initial position,
The measuring units are arranged according to the arrangement of the holes, and the measuring units are connected to each other through a frame that transmits force equally to the measuring units and the arranged measuring units, and when the measuring units are retracted by an external force. Characterized by comprising a wire that transmits force to the connected sensing unit,
It further includes a holding unit provided between the measuring units and connected to the wire to maintain the tension of the wire, an arrangement of the holes having different heights in one direction, an arrangement of the holes arranged along a closed curve in one plane, and a curved surface. Characterized in maintaining the tension constant even in the arrangement of the holes formed,
Porous hole inspection device. delete delete According to paragraph 1,
The detection unit is,
Characterized in detecting the presence or absence of defects for each group of the holes preset by the shunting unit,
Porous hole inspection device. According to paragraph 4,
The detection unit is,
Characterized in that a limiting member tilted relative to a reference axis perpendicular to the moving direction of the measuring unit is provided and the wire is connected,
Porous hole inspection device. According to clause 5,
The detection unit is,
Characterized in detecting a defect in the group when the limiting member is tilted beyond a preset angle range with respect to the reference axis.
Porous hole inspection device. According to paragraph 1,
The shunting unit is,
Characterized in that it further comprises an elastic body fixed to the frame and connected to the measuring unit to restore the retreated measuring unit to its original position,
Porous hole inspection device. According to paragraph 1,
The shunting unit is,
Characterized in that the measuring unit is arranged to correspond to the hole arranged along a straight line in one plane of the object,
Porous hole inspection device. delete According to paragraph 1,
The maintenance unit is,
A seating member provided as a flat plate formed long in the longitudinal direction of the frame to be fixed to one surface of the frame and disposed between the measuring units; and
A connecting member protrudes from one side of the seating member in a direction perpendicular to the longitudinal direction of the seating member and has an end connected to the wire, the end of which is bent to pull the connected wire in the direction of the frame. to,
Porous hole inspection device.

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