JP7380641B2 - Positioning jig and assembly table - Google Patents

Description

The present application relates to a positioning jig for correctly setting workpieces requiring various types of processing on an assembly table, and an assembly table using the positioning jig.

BACKGROUND OF THE INVENTION As a structural member constituting the frame of a prefabricated building, a frame made of shaped steel members pre-assembled to a predetermined size is used. A schematic configuration of such a frame is shown in FIG. 1. The illustrated frame 1 is formed by welding a pair of left and right long vertical frame members 11, a pair of upper and lower short horizontal frame members 12, and a middle frame member 13. Channel steel with a lip is used for the vertical frame member 11 and horizontal frame member 12, and channel steel without a lip is used for the middle frame member 13. A brace member 15 is mounted in an X-shape within the upper and lower rectangular construction surfaces separated by the middle crosspiece member 13 via a substantially triangular mounting plate 14.

Such a shaft frame 1 is assembled by setting each section steel material on an assembly table (workbench) prepared in an assembly factory and welding the mutual joints. However, since frame frames 1 of various dimensions are used depending on the part of each building, the assembly table is equipped with positioning tools to ensure that the section steel is set correctly in a position that matches the assembly dimensions of the frame frame 1. A jig will be required.

Patent Document 1 discloses an example of a positioning jig ("assembly jig" in the document) used for assembling such a frame frame ("panel frame" in the document). The positioning jig disclosed in this document has pairs of telescopic rods at multiple locations in the front and rear of the assembly table (referred to as the "base" in the document), assuming that the long side direction (height direction) of the frame to be assembled is the front-back direction. A pair of extensible rods is provided, and the pair of extensible rods expands and contracts in the short side direction (width direction) of the frame by rotating the handle. A pair of left and right movable frames for positioning the vertical frame members of the frame are provided at the tips of the pair of telescopic rods. Each telescoping rod has a plurality of telescoping positioning holes formed therein, and by engaging pin-shaped fixtures therein, both movable frames can be set at various opposing intervals. By positioning the vertical frame members along the movable frame, multiple types of frames with different short side dimensions (widths) can be assembled on a single assembly table.

Utility model registration No. 2504389

In the positioning jig disclosed in Patent Document 1, when changing the dimensions of the frame to be assembled, it is necessary to turn the handles at multiple locations to move the large movable frame and replace the pin-like fixtures at many locations. Therefore, it takes time to make changes.

Further, in the frame frame 1 used by the present applicant for the frame of a building, holes 16 are formed at a plurality of locations in the web of the vertical frame member 11. These holes 16 are used when installing and interconnecting the frame 1 or when fixing various other members to the frame 1. However, these holes 16 are not necessarily arranged symmetrically in the length direction of the vertical frame material 11, so when setting the vertical frame material 11 on the assembly table, it is necessary to It is necessary to correctly align the direction in the length direction of the material. However, the conventional positioning jig cannot prevent the vertical frame member 11 from being set in the opposite direction due to inadvertence, so there is a need for a means to prevent such simple mistakes. .

The invention disclosed in this application has been made in view of the above circumstances, and is capable of various processing of long or large-sized members (hereinafter collectively referred to as "works") including shaped steel materials as illustrated. It is an object of the present invention to provide a positioning jig that can easily change the setting position of a workpiece according to its assembly dimensions and processing contents when the workpiece is placed on an assembly table for processing.

It is also an object of the invention disclosed in this application to provide an assembly table that uses such a positioning jig and can prevent a workpiece from being set in the wrong direction.

In order to achieve the above-mentioned object, the positioning jig according to the invention disclosed in the present application is attached to an assembly table on which a workpiece is placed, and by engaging with an engaged portion formed on a side surface of the workpiece. , a positioning jig for positioning the workpiece in a predetermined position, the base portion being attached to a horizontal supporting shaft provided below the mounting surface of the workpiece and rotating in a vertical plane; and the base portion a hook-shaped engaging portion extending in a radially outward direction of the support shaft; an L-shaped corner edge in side view is formed at a connection point between the base portion and the engaging portion; A form in which the part is raised above the placement surface and its tip engages with an engaged part of the workpiece, and a form in which the base part and the engaging part are stored below the placement surface; can be selected depending on the rotational position around the support shaft, and when the engaging part engages with the engaged part of the workpiece, the corner edge follows the side and bottom surface of the workpiece. When the side surface of the workpiece presses the tip of the engaging portion while the workpiece is held in a posture and the engaging portion does not engage with the engaged portion of the workpiece, the engaging portion tilts around the spindle. , a part of the edge of the base is configured to protrude above the placement surface and push up the bottom surface of the workpiece.

Furthermore, the positioning jig according to the invention disclosed in the present application includes temporary fixing means for restricting rotation of the base in a state in which the engaging portion is raised above the placement surface. Adopt additional configurations.

Further, the assembly table according to the invention disclosed in the present application includes a placement surface on which a work is placed, a side guide member that abuts a side surface of the work to position it at a predetermined side surface position, and a side guide member that positions the work at a predetermined side surface position. a positioning jig according to the basic configuration or the additional configuration disposed at a position corresponding to the formed engaged portion, and the workpiece is placed on the placement surface and the side guide member When brought into contact with the workpiece, the engaging portion of the positioning jig engages with the engaged portion of the workpiece, so that the workpiece is placed at a predetermined side position and in a predetermined orientation. It is characterized as something that

Further, in the assembly table according to the invention disclosed in the present application, a plurality of side positions for positioning the workpiece are set, and the side guide member is arranged so as to be replaceable at a plurality of positions corresponding to the plurality of side positions. In addition, the positioning jig may also be arranged at a plurality of locations in accordance with the plurality of side positions.

Alternatively, the positioning jig may be arranged at a plurality of locations in accordance with the arrangement pattern of the engaged portions formed on the side surface of the workpiece.

The positioning jig configured as described above has two configurations: one in which the engagement part is raised above the mounting surface and its tip engages the engaged part of the workpiece, and the other in which the base and the engagement part are raised above the mounting surface. It is configured such that the form in which it is stored under the surface can be selected depending on the rotational position around the support shaft. Therefore, depending on the planned assembly/processing form of the workpiece, multiple positioning jigs are installed in advance at the necessary locations, and only the positioning jig to be used is rotated to stand up the engaging part, and the other positioning jigs are rotated. Positioning jigs that are not used can be stored under the mounting surface. Thereby, when placing the workpiece on the assembly table, the position where the workpiece is set can be easily changed depending on the assembly dimensions and processing details.

Furthermore, the assembly table configured as described above includes a mounting surface on which a work made of a long material is placed, a side guide member that brings the side surface of the work into contact and positions it at a predetermined side position, and a side guide member that positions the work at a predetermined side position. and a positioning jig disposed at a position corresponding to the engaged portion formed on the side surface of the workpiece. If the orientation is correct, the engaging portion of the positioning jig is configured to engage with the engaged portion of the workpiece. By checking this engagement state, it is possible to prevent simple mistakes such as setting the workpiece in the wrong direction.

1 is a front view (a) and a side view (b) illustrating a schematic configuration of a frame assembled using the invention disclosed in this application. It is a top view (a) and a front view (b) which illustrate the rough structure of the assembly table used for the assembly process of the said frame frame. 3 is a plan view (a) and a front view (b) showing a state in which the vertical frame members constituting the frame of FIG. 1 are placed on the assembly table of FIG. 2. FIG. 4 is a partial view taken along the line AA in FIG. 3. FIG. They are a plan view (a) and a side view (b) showing an enlarged view of the configuration and usage of the positioning jig installed on the assembly table, and showing a state in which the vertical frame material is correctly positioned by the positioning jig. . FIG. 6 is a side view showing two states in which the vertical frame member is not correctly positioned at the portion shown in FIG. 5; 6 is a plan view (a) and a side view (b) showing how the positioning jig is used when setting the vertical frame material in a position different from that in FIG. 5. FIG.

Embodiments of the invention disclosed in this application will be described below with reference to the drawings. FIG. 2 shows a schematic configuration of an assembly table 2 used when assembling the frame 1 shown in FIG. 1. As shown in FIG. Moreover, FIG. 3 shows a state in which the steel section forming the frame 1 of FIG. 1 is placed on the assembly table 2 of FIG. 2. FIG. 4 is a partial view taken along the line AA in FIG. 3.

The illustrated assembly table 2 includes a base 21 installed on the floor, a movable stage 22 provided at both ends of the base 21 in the longitudinal direction, and a fixed stage 22 provided at the middle part of the base 21 in the longitudinal direction. It includes a stage 23 and mounting blocks 24 arranged at a plurality of locations on each movable stage 22 and fixed stage 23. The shaped steel material (the brace material 15 is attached later) constituting the frame frame 1 is placed on the mounting block 24 with its long side direction (height direction) aligned with the longitudinal direction of the assembly table 2. Each movable stage 22 is installed so as to be movable in the longitudinal direction of the base 21 in accordance with the long side dimension of the frame 1 . Furthermore, each movable stage 22 is equipped with a welding device 25 for welding the vertical frame member 11 and the horizontal frame member 12 of the frame 1.

The mounting block 24 is arranged at a position to support each of the opposing vertical frame members 11 of the frame frame 1, and its top surface serves as a mounting surface for the vertical frame member 11. The mounting block 24 arranged on the upper side in FIGS. 2 and 3A is arranged to support the vertical frame member 11 in a fixed position. In addition, the mounting block 24 arranged on the lower side in the same figure is placed on the frame frame 1 so that the position of the vertical frame member 11 can be changed according to the short side dimension (width) of the frame frame 1 to be assembled. The length along the short side direction is larger than that of the mounting block 24 on the upper side.

A side guide member 3 for positioning the vertical frame member 11 in the width direction of the vertical frame member 11 is attached to the mounting block 24 arranged on the movable stage 22. The side guide member 3 is a substantially cylindrical member, and is inserted into a mounting hole 31 formed in the mounting surface of the mounting block 24 and stands upright. Then, when the outer surface of the vertical frame material 11 placed on the mounting block 24 is brought into contact with the side guide member 3, the outer surface of the vertical frame material 11 is positioned at a preset side surface position. Become.

The mounting block 24 located on the lower side in FIGS. 2 and 3(a) has two mounting holes 31 each on the shaft so that the vertical frame 11 can be mounted in two positions. They are formed apart in the short side direction of the assembled frame 1. Then, the side guide member 3 is inserted into the mounting hole 31 corresponding to the short side dimension of the assembled frame 1 to be assembled. In this way, by configuring the side guide member 3 to be replaceable according to the short side dimension of the frame frame 1, multiple types of frame frames 1 with different short side dimensions can be assembled on a single assembly table 2. It becomes possible to assemble.

However, even if the vertical frame material 11 is positioned in the material width direction using this side guide member 3, it is not possible to prevent mistakes in the direction of the vertical frame material 11 in the material length direction. Therefore, the invention disclosed in this application includes a unique positioning jig 4 that is used together with the side guide member 3 in order to correctly set the direction of the vertical frame member 11 in the longitudinal direction of the member.

FIG. 5 is an enlarged view of the right side portion of FIG. 4 showing the configuration and usage of the positioning jig 4. As shown in FIG. The positioning jig 4 is a member shaped like an L-shape cut out of a part of a circular plate, and has a slightly wide arched base 41 and a slightly narrow arched engagement part 42. ing. The base portion 41 and the engaging portion 42 are integrated with their outer edges continuous in an arc shape, and an L-shaped corner portion 43 is formed inside the portion where the base portion 41 and the engaging portion 42 connect. There is.

The base 41 is attached to the side surface of the mounting block 24 via a support shaft 44 arranged so as to penetrate the mounting block 24 in the longitudinal direction of the vertical frame material 11, and extends along the side surface of the mounting block 24. It is held so that it can rotate in a vertical plane. The engaging portion 42 extends from the base portion 41 in a radially outward direction of the support shaft 44, and has a hook-shaped tip. Then, a mode in which the engaging portion 42 is raised above the mounting block 24 and a mode in which the engaging portion 42 is stored below the mounting surface of the mounting block 24 are set depending on the rotational position around the support shaft 44. The height and the shape of the outer edge of the support shaft 44 are designed so that the height and shape of the outer edge can be selected.

In the configuration in which the engaging portion 42 is raised above the mounting block 24, the edge of the corner edge 43 on the base 41 side is aligned with the top surface of the mounting block 24, or is held slightly below it. Ru. Further, the edge of the corner edge portion 43 on the engaging portion 42 side is aligned with the side surface position determined by the side surface guide member 3, or is held slightly outward from that position.

Further, a ball plunger 45 is embedded in the engaging portion 42 as a temporary fixing means for stopping the engaging portion 42 in the raised state. The ball plunger 45 is arranged so that the ball at the tip protrudes directly above the mounting block 24 when the engaging portion 42 is raised.

When the vertical frame 11 placed on the placement block 24 is brought into contact with the side guide member 3 with the engaging portion 42 of the positioning jig 4 raised up on the placement surface, the vertical frame 11 If the orientation in the longitudinal direction of the vertical frame material 11 is correct, the tip of the engaging portion 42 of the positioning jig 4 will engage with one of the holes 16 formed in the web of the vertical frame material 11. In this state, the corner edge 43 of the positioning jig 4 is held in a position along the outer surface and bottom surface of the vertical frame member 11. In other words, the placing block 24 is arranged in advance so that the engaging portion 42 of the positioning jig 4 engages with the hole 16 when the vertical frame member 11 is placed in the correct direction. In this way, by engaging the engaging portion 42 of the positioning jig 4 with the hole 16 of the vertical frame material 11, the operator can confirm that the vertical frame material 11 is set correctly in its longitudinal direction. can be easily confirmed.

FIG. 6 is a side view showing two states in which the vertical frame member 11 is not set correctly at the portion shown in FIG. 5. When the vertical frame material 11 is placed on the mounting block 24 with its orientation in the material length direction reversed, or when the vertical frame material 11 with a different layout pattern of the hole portions 16 is placed, the vertical frame material 11 is When the hole 16 formed in the web of the frame member 11 and the engaging part 42 of the positioning jig 4 do not match, the outer surface of the vertical frame member 11 will not fit into the engaging part 42, as shown in Figure (a). It interferes with the tip and separates from the side guide member 3. Then, since the vertical frame members 11 cannot be set at the preset side positions, the distance between the opposing vertical frame members 11 becomes narrower, making it impossible to assemble the horizontal frame members 12 and the middle crosspieces 13 between them. .

Furthermore, if the vertical frame member 11 is forcibly pressed against the side guide member 3 in a state where the hole portion 16 of the vertical frame member 11 and the engaging portion 42 of the positioning jig 4 do not match, as shown in FIG. When the pushed engaging portion 42 tilts around the support shaft 44, a portion of the edge of the corner portion 43 on the base 41 side protrudes onto the mounting surface, pushing up the bottom surface of the vertical frame member 11. This state also makes it difficult to correctly assemble the horizontal frame members 12 and the middle frame members 13 between the vertical frame members 11 facing each other.

In this way, if the engaging part 42 of the positioning jig 4 does not engage with the hole 16 of the vertical frame 11, the vertical frame 11 will not be able to be set in a predetermined position, and the horizontal frame 12 will not fit into the vertical frame 11. This makes it impossible to assemble the middle crosspiece 13. By using such a pokayoke means, the operator can notice the mistake and correctly set the vertical frame material 11 that has been set incorrectly.

A total of four positioning jigs 4 are attached to each side of the mounting block 24, two of which are spaced apart in the width direction of the vertical frame member 11. In other words, the two positioning jigs 4 attached to one side and the two positioning jigs 4 attached to the other side are shifted in the longitudinal direction of the vertical frame 11 by the width of the mounting block 24. It will be placed as follows.

FIG. 7 shows how the positioning jig 4 is used when setting the vertical frame member 11 in a position different from that shown in FIG. In the illustrated embodiment, the side guide member 3 is replaced with the mounting hole 31 on the left side in the figure (the center side of the assembly table 2), and the positioning jig 4 on the left side in the figure is rotated to stand up the engaging part 42 and vertically The frame material 11 is being set. Thereby, it is possible to assemble a frame 1 having a smaller short side dimension than the frame 1 shown in FIG. The outer positioning jig 4 may leave the engaging portion 42 up as shown, but if it becomes an obstacle, it may be rotated and stored below the mounting surface.

Further, when the arrangement pattern of the holes 16 formed in the vertical frame member 11 is different, the positioning jig 4 attached to the opposite side surface of the mounting block 24 is rotated and used accordingly.

In this way, the positioning jig 4 disclosed in the present application can position the vertical frame member 11 there by simply raising the engaging portion 42 above the mounting surface, and the positioning jig 4 that is not in use can be rotated. It can be stored under the mounting surface by simply flipping it. Therefore, by attaching the necessary number of positioning jigs 4 to the assembly table 2 according to the planned assembly/processing form, etc., the vertical frame members 11 can be set according to the assembly dimensions of the frame 1 and the processing contents. The position can be easily changed. This makes it possible to save labor in the process of assembling the frame 1.

In addition, the side guide member 3 for positioning the vertical frame member 11 at a predetermined position on the assembly table 2 and this positioning jig 4 are used together, and the positioning jig 4 is attached to the engaged portion formed on the side surface of the vertical frame member 11. By adopting the positioning method of engaging the engaging portions 42, simple mistakes such as setting the vertical frame member 11 in the wrong direction can be prevented.

The above description has been made by taking as an example the assembly table 2 and the positioning jig 4 used for assembling the frame 1 made of shaped steel materials, but the invention disclosed in this application is applicable to various other works, such as other workpieces other than shaped steel materials. A long or large-sized member made of metal, wood, synthetic resin, stone, etc. is set in a predetermined position, and welding, drilling, cutting, polishing, painting, printing, attaching other parts, etc. It can be used in the processing process.

The shape of the engaged portion formed on the side surface of the workpiece may be selected from grooves, recesses, protrusions, etc. in addition to the illustrated hole 16, depending on the processing form of these various members. can. The shape of the tip of the engaging portion 42 of the positioning jig 4 may also be a shape that can easily match the engaged portion. The structure around the mounting surface of the assembly table 2, the mounting position of the side guide member 3, the replacement method, etc. may be appropriately designed according to the processing form of the workpiece. Accordingly, the arrangement and number of positioning jigs 4, the detailed shapes of the base 41 and the engaging part 42, the mounting form of the support shaft 44, the temporary fixing means for raising and stopping the engaging part 42, etc. are also changed as appropriate. be able to. In addition, the invention disclosed in this application can be modified as appropriate without departing from the gist of the invention.

The invention disclosed in this application can be widely used as a positioning means for setting workpieces of various materials, shapes, and sizes at predetermined positions and performing various processing.

1 Axial frame 11 Vertical frame material 12 Horizontal frame material 13 Middle beam material 14 Mounting plate 15 Brace material 16 Hole 2 Assembly table 21 Base 22 Movable stage 23 Fixed stage 24 Mounting block 25 Welding device 3 Side guide member 31 Installation Hole 4 Positioning jig 41 Base 42 Engagement portion 43 Corner edge 44 Support shaft 45 Ball plunger

Claims (6)

A positioning jig that is attached to an assembly table on which a work is placed and that positions the work at a predetermined position by engaging with an engaged portion formed on a side surface of the work,
a base that is attached to a horizontal support shaft provided below the workpiece placement surface and rotates in a vertical plane;
a hook-shaped engagement portion extending from the base in a radially outward direction of the support shaft;
Equipped with
An L-shaped corner edge in side view is formed at a connection point between the base and the engaging portion,
The engaging portion is raised above the placing surface and its tip is engaged with the engaged portion of the workpiece, and the base and the engaging portion are housed below the placing surface. The shape is selectable depending on the rotational position around the support shaft ,
When the engaging portion engages with the engaged portion of the workpiece, the corner edge portion is held in a posture along the side and bottom surfaces of the workpiece,
When the side surface of the workpiece presses the tip of the engaging portion in a state where the engaging portion is not engaged with the engaged portion of the workpiece, the engaging portion tilts around the spindle, and the side of the base portion A portion of the edge protrudes above the placement surface and is configured to push up the bottom surface of the workpiece.
A positioning jig characterized by: The positioning jig according to claim 1,
A positioning jig comprising temporary fixing means for restricting rotation of the base in a state in which the engaging portion is raised above the placement surface. A mounting surface on which the work is mounted;
a side guide member that abuts the side surface of the workpiece and positions it at a predetermined side surface position;
The positioning jig according to claim 1 or 2, which is disposed at a position corresponding to an engaged portion formed on a side surface of the workpiece;
Equipped with
When the workpiece is placed on the placement surface and brought into contact with the side guide member, the engaging portion of the positioning jig engages with the engaged portion of the workpiece, so that the workpiece is placed in a predetermined position. An assembly table characterized in that it is configured such that it is placed on the side of the table in a predetermined orientation. The assembly table according to claim 3 ,
A plurality of side positions for positioning the workpiece are set,
The side guide member is replaceably arranged at a plurality of locations corresponding to the plurality of side positions, and
The assembly table is characterized in that the positioning jig is also arranged at a plurality of locations in accordance with the plurality of side positions. The assembly table according to claim 3 or 4 ,
An assembly table characterized in that the positioning jig is arranged at a plurality of locations according to an arrangement pattern of engaged parts formed on a side surface of the workpiece. The assembly table according to any one of claims 3 to 5 ,
The workpiece is a shaped steel material constituting a vertical frame material of a frame frame,
The engaged portion is a hole formed in the web of the shaped steel material,
An assembly table characterized in that the positioning jigs are arranged to face each other in the width direction of the framework frame in accordance with the side positions of opposing vertical frame members of the framework frame.

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