JP6454128B2 - Work table and inspection method - Google Patents

Description

  The present invention relates to a work table and a member inspection method.

When constructing a structure by assembling a plurality of members on the work table, the position of each member placed on the work table using the vertical adjustment mechanism, left / right adjustment mechanism, and rotation adjustment mechanism provided on this work table There is known a work table that can be easily positioned by assembling and improving workability by adjusting (see, for example, Patent Document 1).
Some work tables are simply used for assembling a plurality of members, and others are used for inspection of members placed on the work table (bending of members, length of members, etc.).
The work table used for the inspection of the member is constructed by positioning a plurality of steel materials at appropriate intervals according to the size of the member to be inspected, for example. Here, when fixing the steel material to the ground, as shown in FIG. 5, in order to level the upper surface on which the member is placed, adjustment bolts 101 attached at a plurality of positions of the steel material 100 and The level (level) is adjusted using the nut 102.

JP-A-8-1459

However, since there are naturally various sizes and shapes of the members placed on the work table, the position of the work table and the level of the work surface must be adjusted each time the member to be inspected changes. It was difficult to improve the workability of the inspection.
Further, since the adjustment of the level of the work table is performed manually, it is difficult to adjust the level of accuracy with the same accuracy every time, which may hinder the inspection results.

  Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a work table and a member inspection method capable of improving workability of inspection and accuracy of inspection.

  In order to solve the above-mentioned problem, the present invention is a work table for performing work by placing a member on an upper surface, and a base part embedded in the ground, and the base part in a state where reaction force is applied to the ground A plurality of level adjustment parts that adjust the level of the upper surface of the base part, a travel path that is provided on the upper surface of the base part and is arranged so that the upper surface is horizontal, and travels on the travel path It is characterized by comprising a plurality of freely mounted carriages, and a placement section provided on each carriage, on which the member is placed.

  In addition, it is preferable that the travel path is a rail, and the carriage includes a wheel placed on the rail, and a main body that rotatably supports the wheel on the rail.

  Moreover, it is preferable to provide the derailment prevention part which prevents derailment from the said rail of the said wheel on the upper surface of the said base part.

  Moreover, it is preferable that the mounting portion is formed of H-shaped steel, a lower flange of the H-shaped steel is fixed to an upper surface of the carriage, and the member is mounted on an upper surface of the upper flange. .

  Further, the base portion is formed of H-shaped steel, a lower flange of the H-shaped steel is fixed to the ground via the horizontal adjustment portion, and the traveling path is provided on the upper flange. It is preferable.

  In addition, the horizontal adjustment portion includes a bolt that is inserted through the lower flange and takes a reaction force on the ground, and a plurality of nuts that are screwed to the bolt so as to sandwich the lower flange from both sides. It is preferable to provide.

  Moreover, it is preferable to provide the locking device which fixes the said trolley | bogie on the said travel path.

  Preferably, a plurality of the traveling paths are provided in parallel to each other, and the mounting table is fixed to at least one of the carriages placed on each traveling path.

  Moreover, it is preferable that a plurality of the mounting tables are provided.

  The present invention is a method for inspecting a member using the workbench described above, and adjusting the distance between the carriages by running the carriage on the travel path according to the size of the members; The method includes a step of fixing a carriage on the travel path, a step of placing the member on the mounting table, and a step of inspecting a member mounted on the mounting table.

  According to the present invention, inspection workability and inspection accuracy can be improved.

It is a top view explaining the worktable in embodiment of this invention. In the work bench | platform in embodiment of this invention, it is a side view explaining a base part. In the work bench | platform in embodiment of this invention, it is a side view explaining the state which mounted the trolley | bogie in the base part. It is a front view explaining a trolley in a work table in an embodiment of the invention. It is a perspective view explaining the conventional worktable.

  A preferred embodiment of the present invention will be described with reference to the drawings. In addition, embodiment shown below is one illustration and can take a various form in the scope of the present invention.

1. First, the configuration of the work table will be described.
As shown in FIG. 1, the work table 10 performs work by placing an inspection member M such as a pipe material to be inspected on the upper surface.
As shown in FIGS. 1 to 4, the work table 10 is embedded in the ground G and has a base portion 10 a whose upper surface is kept almost horizontal, and is provided on the base portion 10 a so as to protrude above the ground. And a moving part 10b that is movable along the line.

<Basic part>
The base portion 10 a includes a base portion 1, a horizontal adjustment portion 2, and a travel path 3.
(Base part)
As shown in FIGS. 1 to 3, the base portion 1 is embedded in the ground G on which the work table 10 is installed. A plurality of grooves g are formed in the ground G with a certain interval, and these grooves g are formed to extend linearly in one direction. The base portion 1 is made of, for example, H-section steel and is accommodated in each groove g formed in the ground G. In the present embodiment, the three base portions 1 are embedded in the ground G so as to be substantially parallel to each other.
The base portion (H-shaped steel) 1 is disposed so that the surface directions of the two flanges 11 and 12 are substantially along the horizontal direction. A flange 11 below the base portion 1 is fixed to the ground G via a plurality of horizontal adjustment portions 2. That is, the base portion 1 is provided on the ground G in a state in which the levelness (level) of the upper surface can be adjusted by the horizontal adjustment portion 2. A travel path 3 is provided on the upper surface of the flange 12 above the base portion 1.
The base portion 1 may be formed by connecting a plurality of H-section steels in accordance with the size of the space at the installation location.

(Level adjustment part)
As shown in FIGS. 2 and 3, the horizontal adjustment unit 2 adjusts the posture of the base unit 1 so that the upper surface of the base unit 1 (the upper surface of the flange 12 above the H-shaped steel) is substantially horizontal. It is.
The horizontal adjustment unit 2 includes, for example, a bolt 21 and a plurality of nuts 22. The bolt 21 is inserted from the lower surface side into the flange 11 below the base portion 1 with the head receiving a reaction force on the ground G, and the axial direction of the bolt 21 is perpendicular to the horizontal direction (vertical direction). ). A plurality of bolts 21 are inserted into the lower flange 11 at positions that are substantially line-symmetric with respect to the ribs 13. The nut 22 has a plurality of nuts 22 screwed to one bolt 21. The nut 22 is screwed to the bolt 21 so as to sandwich the lower flange 11 from both sides.
Therefore, the position where the left nut 22 sandwiches the lower flange 11 with the rib 13 interposed therebetween and the position where the right nut 22 sandwiches the lower flange 11 are adjusted according to the bottom surface of the ground G taking the reaction force. Thus, the level of the upper surface of the base portion 1 (the upper surface of the upper flange 12) can be adjusted.
The number of the horizontal adjustment units 2 is arbitrary, and the number can be increased or decreased according to the length of the base unit 1.

(Runway)
As shown in FIG. 1 to FIG. 3, the travel path 3 guides the carriage 4 so as to travel freely. The traveling path 3 is formed of, for example, a rail, and is provided on the upper surface of each base portion 1 (the upper surface of the upper flange 12). The traveling path 3 is provided on the upper surface of the base portion 1 so that the longitudinal direction thereof is along the longitudinal direction of the ribs 13 of the H-shaped steel forming the base portion 1 in the vertical direction. The travel path 3 has a flat top surface and is fixed to the top surface of the base portion 1 with bolts, screws, or the like. The travel path 3 is formed so that the upper surface and the lower surface are substantially parallel to each other, and the upper surface of the travel path 3 is substantially along the horizontal direction when fixed to the base portion 1.
On both sides of each travel path 3, derailment prevention portions 31 are provided along the longitudinal direction of the travel path 3 with a predetermined interval. The derailment prevention unit 31 prevents the derailment of the carriage 4 from the travel path 3. The derailment prevention part 31 is formed from angle steel, for example, and is joined to the vicinity of both side edges of the upper surface of the base part 1 by welding or the like.

<Moving part>
The moving unit 10 b includes a carriage 4, a placement unit 5, and a lock device 6.
(Cart)
As shown in FIG. 1, FIG. 3, and FIG. 4, the carriage 4 is for making the mounting portion 5 movable along the traveling path 3. A plurality of trolleys 4 are placed so as to be able to travel on each traveling path 3 so that the upper surface is horizontal. In the present embodiment, five carts 4 are provided on each of the three traveling paths 3.
The cart 4 includes wheels 41 and a main body 42. The wheel 41 is mounted on the travel path 3 so as to be able to roll and can travel along the travel path 3. The wheels 41 are provided with two wheels 41 for one carriage 4 and are arranged side by side along the longitudinal direction of the traveling path 3. The main body 42 includes a shaft body 42a that supports the wheel 41 so as to freely rotate on the traveling path 3, and a box-shaped housing 42b that supports the shaft body 42a. Most of the wheels 41 are accommodated in the housing 42b, and only the lower part close to the travel path 3 protrudes downward from the housing 42b.

(Placement part)
As shown in FIGS. 1, 3, and 4, the placement unit 5 is for placing an inspection member M to be inspected, and is provided on the upper surface of the main body 42 of the carriage 4. The mounting portion 5 is formed of, for example, H-shaped steel, and a lower flange 51 of the H-shaped steel is fixed to the upper surface of the housing 42b with a bolt or the like, and the inspection member M is mounted on the upper surface of the upper flange 52. Placed. Since the mounting portion 5 is H-shaped steel, the lower flange 51 and the upper flange 52 are formed substantially in parallel, and the upper surface of the mounting portion 5 is substantially horizontal when fixed to the housing 42b. It is provided along. The placement unit 5 is shared by one carriage 4 in each travel path 3, and one placement part 5 is connected to one carriage 4 in each travel path 3, and the placement unit 5 has three travels. It is arranged so as to straddle the road 3. That is, the placing portion 5 extends so as to be substantially orthogonal to the extending direction of the traveling path 3.
Therefore, a total of five placement portions 5 are provided, which are substantially parallel to each other and can adjust the distance between the placement portions 5.
In addition, each mounting part 5 is provided with each mounting part 5, and each mounting part 5 is connected to each other so that the connecting and integrated mounting parts 5 straddle the three traveling paths 3. Also good.

(Locking device)
As shown in FIGS. 1 and 4, the locking device 6 fixes the cart 4 on the traveling path 3 and is provided in each cart 4. The locking device 6 includes a screw 61, a screw receiving portion 62, and a handle portion 63.
The screw 61 has a male screw groove formed at least in part, and is inserted through the housing 42b so as to penetrate the housing 42b in the vertical direction. The screw receiving portion 62 is attached to the upper portion of the housing 42 b and has a female screw groove that is screwed into the screw 61. The screw 61 is inserted through the screw receiving portion 62. The handle portion 63 is provided at the upper end portion of the screw 61 and is rotatable together with the screw 61 around the axis of the screw 61.
Therefore, by rotating the handle portion 63 in one direction, the screw 61 attached to the handle portion 63 moves downward while rotating, and comes into contact with the ground G when it moves a predetermined distance. As a result, the traveling of the carriage 4 on the traveling path 3 is locked. Further, by rotating the handle portion 63 in the reverse direction, the screw 61 attached to the handle portion 63 moves upward, the contact between the ground G and the screw 61 is released, and the lock of the carriage 4 is released. .
In addition, the locking device 6 may be provided in each cart 4, or may be provided in at least one of the carts 4 sharing the placement unit 5.

2. Manufacturing method of work table When manufacturing the work table 10 described above, first, the ground G is excavated to form three grooves g substantially parallel to each other, and the H-section steel to be the base portion 1 in each groove g. Buried. Bolts 21 and nuts 22 serving as the horizontal adjustment unit 2 are attached to the flange 11 below the base unit 1, and the heads of the bolts 21 are fixed to the bottoms of the grooves g so that the reaction force can be taken. After the base portion 1 is installed in the groove g, the base portion 1 is adjusted so that the upper surface of the base portion 1, that is, the surface of the flange 12 above the base portion 1 is substantially in the horizontal direction by adjusting the position of the nut 22. Adjust the posture.
Next, a rail serving as the travel path 3 is fixed to the upper surface of the base portion 1 with bolts or the like on the upper surface of the upper flange 12, and derailment prevention portions 31 are provided on both sides of the travel path 3. The traveling path 3 and the derailment prevention unit 31 may be attached after adjusting the level of the base unit 1, or may be adjusted in a state of being attached to the base unit 1 first. In any case, it is necessary that the upper surface of the traveling unit 3 is substantially horizontal. In addition, it is preferable that the difference between the heights of the highest position and the lowest position of the base part 1 and the travel path 3 is within ± 2 mm as an error allowed as the level of the base part 1 and the travel path 3.
Next, by placing the wheels 41 on the travel path 3, the carriage 4 is placed on the travel path 3 so as to be able to travel freely. At this time, five carts 4 are placed on each traveling path 3. A mounting portion 5 is attached to the cart 4 in advance, and when the cart 4 is placed on the traveling path 3, the top surface of the mounting portion 5 is fixed so as to be substantially horizontal. Of course, the placement unit 5 may be fixed to the carriage 4 after the carriage 4 is placed on the travel path 3. The placement units 5 are respectively fixed to one carriage 4 on each traveling path 3, and a total of five placement units 5 are provided.
The work table 10 is manufactured through the above steps. Note that the allowable error in the level of the entire work table 10 is that the difference in height between the highest position and the lowest position of the placement portion 5 is within ± 2 mm when the inspection member M is placed. preferable.

3. Inspection Member Inspection Method When the inspection member M is inspected using the work table 10 manufactured as described above, each carriage 4 is caused to travel on the traveling path 3 in accordance with the entire length of the inspection member M, and a plurality of inspection members M are operated. The interval is adjusted so that the inspection member M can be supported as evenly as possible by the mounting portion 5. Further, when the inspection member M is configured by connecting a plurality of members, for example, as illustrated in FIG. 1, when the inspection member M is configured by connecting a plurality of pipe members, the flange portion thereof. The positions of the placement units 5 are adjusted so that the (connecting portion) is positioned between the placement units 5 so as not to ride on the placement units 5.
When the position adjustment of the placement unit 5 is completed, the handle unit 63 is turned to lock each carriage 4 and the inspection member M is placed on the placement unit 5 to perform inspection.

4). Effects in Embodiment The work table 10 having the above-described configuration is adjusted by the horizontal adjustment unit 2 so that the upper surface of the base unit 1 is substantially horizontal, and the traveling path 3 and the carriage 4 are arranged on the upper surface of the base unit 1. In addition, by providing the mounting portion 5 with an error within an allowable range, the inspection member M can be inspected within the allowable error range of the entire work table 10. Therefore, as in the prior art, it is possible to reduce the work time by omitting the complicated work for preparing the inspection for adjusting the level of the base portion 1 every time the inspection member M is changed. Work efficiency can be improved. In addition, since the number of adjustments of the level of the work table 10 can be reduced, the inspection member M can be inspected under the same conditions, and the inspection accuracy of the inspection member M can be improved.
In addition, since the derailment prevention portions 31 are provided on both sides of the travel path 3, the carriage 4 is not derailed from the travel path 3 during the position adjustment of the placement unit 5, and the work is not delayed.
Moreover, since both the base part 1 and the mounting part 5 are formed from H-section steel, the worktable 10 can be constructed with a simple structure using existing members.
Moreover, since the level adjustment part 2 is formed from the bolt 21 and the nut 22, the level of the work table 10 can be adjusted with a simple structure using an existing member.
In addition, since the carriage 4 and the lock device 6 are provided, the position can be fixed by the lock device 6 after the mounting portion 5 is positioned at an arbitrary position. A stand 10 can be constructed.

In addition, this invention is not restricted to the said embodiment, In the range which does not exceed the range of this invention, it can change suitably. For example, the number and shape of the base part, the horizontal adjustment part, the traveling path, the carriage, and the mounting part are arbitrary, and the design can be freely changed as long as it has the functions described above.
The locking device may also lock the traveling of the carriage by sandwiching the wheels with a shoe connected to the hydraulic cylinder.

1 Foundation part (H-section steel)
2 Leveling part 3 Road (rail)
4 Cart 5 Place (H-section steel)
6 Locking device 10 Work table 10a Foundation part 10b Moving part 11 Lower flange 12 Upper flange 21 Bolt 22 Nut 31 Derailment prevention part (angle steel)
41 Wheel 42 Body 61 Screw 62 Screw receiving part 63 Handle part g Groove G Ground M Inspection member

Claims (9)

A workbench for performing work by placing a member on the upper surface;
A foundation part buried in the ground,
A plurality of horizontal adjustment parts that are connected to the base part in a state of taking a reaction force on the ground, and adjust the level of the upper surface of the base part;
A traveling path provided on the top surface of the base portion and disposed so that the top surface is horizontal;
A plurality of carriages movably mounted on the traveling path;
A plurality of placement portions provided on each carriage, and the member is placed on the upper surface;
A locking device for fixing the carriage on the travel path,
A plurality of the traveling paths are provided in parallel to each other,
The plurality of placement units are respectively arranged so as to straddle the plurality of travel paths, and are fixed to at least one of the carriages placed on each travel path,
The locking device is provided in each of the plurality of carts, and includes a screw portion inserted through the cart so as to penetrate the cart in the vertical direction, and an upper end portion of the screw portion, together with the screw portion. A handle portion rotatable around an axis of the screw portion, and the carriage is fixed by rotating the handle portion in one direction and bringing the screw portion into contact with the ground. Workbench. The travel path is a rail,
The cart is
Wheels mounted on the rail;
A main body that rotatably supports the wheels on the rail;
The work table according to claim 1, further comprising:   The work table according to claim 2, further comprising a derailment prevention unit configured to prevent derailment of the wheel from the rail on an upper surface of the base unit. The mounting part is formed from H-section steel,
The lower flange of the H-shaped steel is fixed to the upper surface of the carriage, and the member is placed on the upper surface of the upper flange. Work table. The base portion is formed from H-section steel,
The lower flange of the H-shaped steel is fixed to the ground via the horizontal adjustment portion, and the travel path is provided on the upper flange. The workbench according to one item. The horizontal adjustment unit is
A bolt that is inserted into the lower flange and takes a reaction force on the ground;
A plurality of nuts screwed to the bolt so as to sandwich the lower flange from both sides,
The work table according to claim 5, further comprising: A plurality of the traveling paths are provided in parallel to each other,
The worktable according to any one of claims 1 to 6, wherein the placement unit is fixed to at least one of the carriages placed on each travel path.   The work table according to claim 7, wherein a plurality of the placement units are provided. A member inspection method using the workbench according to any one of claims 1 to 8,
In accordance with the size of the member, the step of running the carriage on the running path to adjust the interval between the carriages;
Fixing each carriage on the road;
Placing the member on the placement unit;
A step of inspecting a member placed on the placement portion;
A method for inspecting a member characterized by comprising:

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