JP4891165B2 - Joint assembly table - Google Patents

Description

  The present invention relates to a joint assembly base for assembling a joint used for a joint between a column and a beam of a steel structure by welding.

  Pipes and H-shaped steel are used for the steel column 50 constituting the steel structure, but as shown in FIG. 9, a joint 51 for forming a floor of each floor is attached on the way. In this joint 51, a plurality of arm portions 53 are radially extended on the side surface of the trunk portion 52, and a column 54 is connected to the upper side and / or the lower side of the trunk portion 52. Is connected to the beam. For this reason, in order to build a steel structure accurately, the joint 51 must be correctly assembled according to the design drawing.

  As a conventional joint assembly stand, the jigs for temporarily assembling a joint block described in Patent Documents 1 to 3 are exemplified. This jig is for a joint having a structure in which a large number of flat plates are assembled by welding, and includes a cross-shaped gantry having radial portions extending radially in four directions at 90 ° intervals from the center. . In addition, a stopper unit for assembling the body portion of the joint is provided at the center of the gantry, and a clamping means for assembling the arm portion of the joint is provided at the distal end portion of each radiation portion. The stopper unit and the clamp means are provided so as to be able to advance and retreat over a wide range along slide guide means such as a groove provided on the gantry. The positions of the stopper unit and the clamping means can be adjusted with high accuracy by a manual screw feed mechanism.

Japanese Utility Model Publication No. 5-39786 Japanese Utility Model Publication No. 6-48984 Japanese Utility Model Publication No. 6-61386

  By the way, there are various types of actual steel structures depending on various conditions such as the structure and the shape of the land on which they are constructed, so the relative positions of columns and beams in each steel structure The relationship is not uniform, and it is necessary to extend the beam in the required three-dimensional direction with respect to the column. For this reason, it is necessary to extend the arm portion 53 of the joint 51 in a required direction three-dimensionally with respect to the trunk portion 52 according to the structure of the steel structure. However, with a conventional jig, only a typical structure having an arm portion extending in four predetermined directions from the center can be assembled. For this reason, when assembling a joint with an atypical structure, it is necessary to position each member by applying a biting member, a right angle and a parallel ruler, etc., and then performing assembly work such as temporarily fixing by welding. There is a problem that it cannot be assembled with sufficient accuracy, is inefficient, and requires a large number of people.

  In addition, the conventional jig employs a screw feed mechanism to adjust the position of the stopper unit and clamp means in a wide range, so that the stopper unit and clamp means can be accurately positioned over a wide range. Yes. However, on the other hand, there is a problem that the jig becomes expensive. In addition, by adopting the screw feed mechanism for adjusting the position over a wide range in this way, the structure of the jig becomes complicated, and these parts can be removed during attachment to and removal from heavy fixtures and their components. There is a problem that if it accidentally collides with a jig, it breaks relatively easily.

In order to solve the above problems, the joint assembly table of the present invention is:
A joint assembly table for assembling a joint having a structure in which a plurality of arms are radially fixed to the side surface of the body part,
A surface plate as a base for assembling the joint,
A body support attached to the upper surface of the surface plate so as to support the body on the surface plate;
An arm support that is attached to the upper surface of the surface plate so as to support the arm portion at a welding fixing position with respect to the body portion supported on the surface plate,
In the surface plate, a large number of positioning holes are regularly arranged on substantially the entire upper surface,
The barrel support and the arm portions support by each of the base and a pair of fixing means for fixing via respective fixing bolts to the pair of the positioning holes respectively provided, through the positioning hole, the Each of the body support and the arm support is configured to be attached to the surface plate independently of each other so as to have a required position and direction .
The base is formed in a rectangular frame shape and is configured to be placed on the upper surface of the surface plate,
The fixing means is supported so as to be slidable in the X direction within the frame of the base portion, and slidable in the Y direction (a direction perpendicular to the X direction) with respect to the X direction movable frame. , A Y-direction movable member having a through-hole for inserting the shaft portion of the fixing bolt, a cap member covering the head of the fixing bolt, and the fixing bolt with respect to the base portion via the cap member. A position adjusting unit for adjusting the position in the X direction or the Y direction, and the fixing position of the base with respect to the positioning hole to be fixed is parallel to the upper surface of the surface plate in the base. It is configured to be adjustable in the X direction and the Y direction that are orthogonal to each other in a plane.

According to this configuration, the trunk portion support body and the arm portion support body are configured to be attached to the surface plate independently of each other through the positioning holes so as to have a required position and direction. Therefore, it is possible to flexibly cope with a joint provided with an arm portion extending three-dimensionally in a required direction with respect to the trunk portion. In addition, since a large number of the positioning holes are regularly arranged on substantially the entire upper surface of the surface plate, when attaching the trunk part support body or the arm part support body to the required position and direction, The positioning hole in the vicinity of the mounting position can be used. For this reason, it is only necessary to be able to adjust the position and orientation of the trunk support or the arm support within a narrow range with respect to the positioning hole. Can be constructed robustly. Furthermore, the fixing means can adjust the body support and the body support to a required position and orientation with respect to the pair of positioning holes.

Further, in the joint assembly table,
The position adjusting unit includes a position adjusting screw coupled to the cap member so that one end side of the cap member is rotatable about an axis and is not relatively movable in the axial length direction (position adjusting direction), and orthogonal to the position adjusting direction in a plan view. A guide member that is supported by the base so as to be reciprocally movable in a direction, and that guides the position adjustment screw to be rotatable and slidable in a position adjustment direction, and is screwed to the position adjustment screw so as to sandwich the guide member An embodiment including a pair of fixing nuts for fixing the position adjusting screw to the guide member is illustrated.

Further, in the joint assembly table,
The aspect comprised so that the said trunk | drum may be supported by the said some trunk | drum support body attached mutually independently with respect to the said surface plate is illustrated.

  According to this structure, each said trunk | drum support body can be comprised compactly, and the occupation space on the said surface plate can be made small. For this reason, the freedom degree at the time of attaching the said trunk | drum support body on the said surface plate can be improved.

  According to the joint assembly table according to the present invention, it is possible to flexibly cope with a joint provided with an arm portion extending three-dimensionally in a required direction with respect to the body portion, and the joint can be accurately and efficiently used. It has an excellent effect of being able to be assembled.

  1 to 8 show a joint assembly table 1 according to an embodiment of the present invention. The joint assembly table 1 is for assembling a joint 51 having a structure in which a plurality of arm portions 53 are radially fixed to the side surface of the body 52, and a surface plate 2 as a base for assembling the joint 51. A body support 3 attached to the upper surface of the surface plate 2 so as to support the body 52 on the surface plate, and an arm portion at a welding fixing position with respect to the body 52 supported on the surface plate. An arm support 4 attached to the upper surface of the surface plate 2 is provided so as to support 53.

  The surface plate 2 is supported substantially horizontally with respect to a base (not shown), and as shown in FIGS. 1 and 2, a large number of positioning holes 5 are regularly formed on the entire upper surface (in this example, a mesh shape). ), And each positioning hole 5 is engraved with a female screw that is screwed into a shaft portion of a fixing bolt 6 to be described later. Here, in FIG.1 and FIG.2, the positioning hole 5 is shown only in the site | part of the lower right side of the surface plate 2 in each figure, and illustration is abbreviate | omitted about the other site | part. Height adjustment screws (not shown) are screwed into the four corners and the central hole 7 of the surface plate 2, respectively, so that the height of the surface plate 2 with respect to the base can be adjusted. Further, on the upper surface of the surface plate 2, guide grooves 8 are recessed on the pair of diagonal lines, and positioning holes 5 are also provided in the guide grooves 8.

  As shown in FIGS. 1 to 5, the arm support 4 can be individually adjusted in the vertical position with respect to the mounting portion 41, the column portion 42 erected on the mounting portion 41, and the column portion 42. A pair of support arms 43 attached to the clamp part 44 and a clamp tool 44 configured to be attachable to a substantially required height of the column part 42 are provided. The arm portion 53 is placed on the pair of support arms 43 and is fixed to the column portion 42 and the pair of support arms 43 by the clamp tool 44.

  As shown in FIGS. 4 and 5, the mounting portion 41 includes a rectangular frame-shaped base frame portion 45 placed on the upper surface of the surface plate 2, and the base frame portion 45 with a pair of positioning holes 5 and fixing bolts 6. And a pair of fixing means 22 to be fixed via the.

  The base frame portion 45 is formed by integrally forming a first frame portion 45a and a second frame portion 45b, which are two rectangular frame bodies, side by side. The column part 42 is erected on the upper side of the first frame part 45a. The first frame portion 45a and the second frame portion 45b are provided with fixing means 22, respectively.

  The fixing means 22 includes an X-direction movable frame 25 supported so as to be slidable in the X direction as the first direction within the frame of the first frame portion 45 a or the second frame portion 45 b, and the X-direction movable frame 25. A Y-direction movable member 26 that is slidably supported in the Y direction as a second direction (a direction orthogonal to the first direction) and has a through hole 26a for inserting the shaft portion of the fixed bolt 6, and the head of the fixed bolt 6 A cap member 27 that is placed over the portion, and a position adjusting unit 28 for adjusting the position of the fixing bolt 6 in the X direction or the Y direction with respect to the base frame portion 45 via the cap member 27. Each position adjusting unit 28 has a position adjusting screw 29 coupled to the cap member 27 so that one end side of the cap member 27 can rotate around the axis and cannot move relative to the axial length direction (position adjusting direction). And a guide member 30 that guides the position adjusting screw 29 so as to be rotatable and slidable in the position adjusting direction, and is screwed to the position adjusting screw 29 so as to hold the guide member 30 therebetween. And a pair of fixing nuts 31 for fixing the position adjusting screw 29 to the guide member 30. In this way, the fixing means 22 sets the fixing position of the base frame portion 45 as the base portion to the positioning hole 5 to be fixed to each other in a plane parallel to the upper surface of the surface plate 2 in the base frame portion 45. It is configured to be adjustable in the orthogonal X and Y directions.

  By the way, in this example, in the fixing means 22 provided in the first frame portion 45a, the position adjusting screw 29, the guide member 30 and the fixing nut 31 with respect to the Y direction as the side-by-side direction are omitted. The reason for this configuration is that (1) the fixing means 22 provided in the second frame portion 45b is provided with the position adjusting screw 29, the guide member 30 and the fixing nut 31 in the Y direction. (2) When the position adjusting screw 29 is provided in the Y direction in the first frame portion 45a, the position adjusting screw 29 is orthogonal to the Y direction. This is because a long hole extending in the X direction for enabling reciprocal movement must be provided in the column portion 42, and the strength of the column portion 42 is reduced.

  The usage method of this arm part support body 4 is demonstrated. First, the cap member 27, the position adjusting screw 29 and the fixing nut 31 of each fixing means 22 are removed, and the clamp tool 44 is removed from the column portion 42. Next, the arm support 4 is disposed at a position corresponding to the supported portion of the arm 53 on the surface plate. Next, the position of the Y-direction movable member 26 of each fixing means 22 is adjusted so that the through hole 26 a coincides with any positioning hole 5. At this time, it is preferable that the fixing means 22 utilize the positioning holes 5 that are located as far as possible from each other. The shaft portion of the fixing bolt 6 is screwed into the positioning hole 5 through the through hole 26 a of the Y-direction movable member 26. At this time, the fixing bolt 6 is not completely tightened into the positioning hole 5. Next, the removed cap member 27 is attached to the head of each fixing bolt 6, and the position adjusting screw 29 and the fixing nut 31 are arranged at predetermined positions. Next, by adjusting the screwing position of the fixing nut 31 with respect to each position adjusting screw 29, the fixing position of the base frame portion 45 with respect to the positioning hole 5 to be fixed is set to the surface plate 2 in the base frame portion 45. In the plane parallel to the upper surface of the substrate, adjustment is made in the X and Y directions orthogonal to each other. Next, the position adjusting screw 29 is fixed to the guide member 30 by tightening a pair of fixing nuts 31 screwed into the position adjusting screws 29 to the guide member 30. Next, the fixing bolt 6 is completely tightened into the positioning hole 5. Next, the height of the pair of support arms 43 with respect to the column part 42 is adjusted, the arm part 53 is placed on the pair of support arms 43, and the arm part with respect to the column part 42 and the support arm 43 by the clamp tool 44. 53 is fixed.

  The body support 3 includes a first mode (see FIGS. 1, 6 and 7) used when the shape of the body 52 is other than a square in a plan view, and a second mode (see FIGS. The configuration can be changed to two modes as shown in FIG. In addition, in this example, it is comprised so that the trunk | drum 52 may be supported by the some trunk | drum support body 3 attached to the surface plate 2 mutually independently.

  The trunk part support body 3 of the first aspect includes a trunk body positioning part for positioning the trunk body 52 placed on the upper surface of the support body 11 and the support body 11 formed in a rectangular frame shape in side view. 12 and a fixture 13 detachably attached to the support body 11.

  The support body 11 is formed in a shape in which the distal end side protrudes in a V shape in plan view, and supports the body 52 on the upper surface of the distal end side.

  The body positioning unit 12 is configured to adjust the position of the positioning plate 15 in the front-rear direction on the upper side of the support body 11 and the positioning plate 15 supported so as to be movable back and forth in the front-rear direction of the support body 11. A feed screw 16 is provided. The positioning plate 15 is formed in a shape that does not protrude from the support body 11 in a plan view at the most advanced position and the most retracted position, and a V-shaped recess 15a is provided on the distal end side in the plan view. ing. The positioning plate 15 is positioned by restricting the movement of the body portion 52 in the horizontal direction by the concave portion 15a and convex portions formed on both sides of the concave portion at a position where the positioning plate 15 is most advanced.

  The fixture 13 is a rectangular frame-shaped base frame portion 21 placed on the upper surface of the surface plate 2 and a pair of fixing means 22 for fixing the base frame portion 21 via a pair of positioning holes 5 and fixing bolts 6. And a locking portion 23 for locking the support body 11 so as not to move relative to the base frame portion 21. The fixing means 22 is configured in the same manner as the arm support 2.

  The usage method of the trunk | drum support body 3 of this 1st aspect is demonstrated. First, the positioning plate 15 is moved rearward from a predetermined positioning position. Then, the fixture 13 is attached to the surface plate 2 in the same manner as the attachment portion 41 of the arm support 4. Next, each supported part of the body 52 is placed on the top surface of the support body 11 in each body support 3, the positioning plate 15 is moved forward to a predetermined positioning position, and the body 52 is moved to a predetermined position. Position to.

  Although the trunk | drum support body 3 of a 2nd aspect is common with a 1st aspect by the point provided with the support body main body 11 and the trunk | drum positioning part 12, the fixture 13 is removed, one positioning hole 5 and The point from which the support body 11 is fixed to the upper surface of the surface plate 2 via the fixing bolt 6 is different from the first mode.

  Although not mentioned in the description of the first aspect, the support body 11 of the present example includes a first elongated hole 33 that vertically penetrates the lower frame and extends in the front-rear direction, and the rear frame. A second long hole 34 that penetrates in the front-rear direction and extends in the vertical direction is provided, and a pair of female screw holes 35 provided at intervals in the X direction are provided on the bottom surface of the lower frame. A movable member 36 is mounted in the first long hole 33 so as to be slidable in the X direction. The movable member 36 is provided with a through hole 36a that vertically penetrates the movable member 36, and the shaft portion of the fixing bolt 6 is inserted into the through hole 36a. A cap member 27 is put on the head of the fixing bolt 6. A position adjusting unit 28 for adjusting the position of the fixing bolt 6 in the X direction with respect to the lower frame is provided via the cap member 27. The position adjusting unit 28 includes a position adjusting screw 29 that is coupled to the cap member 27 so that one end side thereof is rotatable about an axis and is not relatively movable in the axial length direction (X direction). The other end side of the position adjusting screw 29 is inserted into the second long hole 34. The other end side is fixed to the rear frame by a pair of fixing nuts 31 screwed into the position adjusting screw 29. Further, guide bolts 37 having heads that fit into the guide grooves 8 of the surface plate 2 are attached to the respective female screw holes 35.

  The usage method of the trunk | drum support body 3 of this 2nd aspect is demonstrated. First, the cap member 27, the position adjusting screw 29, and the fixing nut 31 are removed, and the positioning plate 15 is moved backward. Further, the head of the guide bolt 37 is fitted in the guide groove 8. Next, the body support 3 is slid along the guide groove 8, and the body support 3 is disposed at a position corresponding to the supported portion of the body 52 on the surface plate. Next, the position of the movable member 36 is adjusted so that the through hole 36 a coincides with any one of the positioning holes 5. The shaft portion of the fixing bolt 6 is screwed into the positioning hole 5 through the through hole 36 a of the movable member 36. At this time, the fixing bolt 6 is not completely tightened into the positioning hole 5 so that the movable member 36 can move relative to the support body 11. Next, the removed cap member 27 is mounted on the head of the fixing bolt 6 and the position adjusting screw 29 and the fixing nut 31 are arranged at predetermined positions. Next, the fixing position of the support body 11 with respect to the positioning hole 5 to be fixed is adjusted by adjusting the screwing position of the fixing nut 31 with respect to the position adjusting screw 29. Next, the position adjusting screw 29 is fixed to the rear frame by tightening a pair of fixing nuts 31 screwed into the position adjusting screw 29 to the rear frame. Next, the fixing bolt 6 is completely tightened into the positioning hole 5. Next, each supported part of the body 52 is placed on the top surface of the support body 11 in each body support 3, the positioning plate 15 is moved forward to a predetermined positioning position, and the body 52 is moved to a predetermined position. Position to.

  In order to use the spigot assembly table 1 of this example, first, while fixing a required number of trunk | drum support bodies 3 on the surface plate 2, the trunk | drum 52 is mounted on the trunk | drum support body 3, The body 52 is positioned by the body support 3. Next, the arm support 4 is fixed on the surface plate 2, and the arm 53 is fixed to the arm support 4 (this is repeated for the required number of arms 53). Next, the arm portion 53 is fixed to the trunk portion 52 by welding.

  According to the spigot assembly stand 1 of the present example configured as described above, the trunk portion support body 3 and the arm portion support body 4 are each in a required position and direction through the positioning hole 5. Since it is configured to be attached to the surface plate 2 independently of each other, it is possible to flexibly correspond to the joint 51 provided with the arm portion 53 that extends three-dimensionally in a required direction with respect to the body portion 52. Further, since a large number of positioning holes 5 are regularly arranged on substantially the entire upper surface of the surface plate 2, when attaching the trunk support 3 or the arm support 4 to the required position and direction, The positioning hole 5 in the vicinity of the mounting position can be used. For this reason, the position and orientation of the body support 3 or the arm support 4 can be adjusted within a narrow range with respect to the positioning hole 5, and the structure for adjusting the position and direction can be reduced in size. And it can be constructed robustly.

  Each of the body support 3 and the arm support 4 includes a pair of fixing means 22 for fixing the respective bases to the pair of positioning holes 5, respectively. Since the fixing position of the base with respect to the positioning hole 5 is adjustable in the X and Y directions orthogonal to each other in a plane parallel to the upper surface of the surface plate 2 in the base, The body 3 and the trunk support 3 can be adjusted to the required position and orientation.

  Moreover, since it is comprised so that the trunk | drum 52 may be supported by the several trunk | drum support body 3 attached mutually independently with respect to the surface plate 2, each trunk | drum support body 3 can be comprised compactly. The space occupied on the surface plate can be reduced. For this reason, the freedom degree at the time of attaching the trunk | drum support body 3 on the said surface plate can be improved.

In addition, this invention is not limited to the said embodiment, For example, it can also be suitably changed and embodied as follows, for example in the range which does not deviate from the meaning of invention.
(1) Each arm part 53 is configured to be supported by two or more arm part supports 4.
(2) The trunk | drum support body 3 shall be the aspect comprised so that adjustment of the support height of the trunk | drum 52 with respect to the upper surface of the surface plate 2 was possible.

It is a top view which shows the use condition of the joint assembly stand which concerns on one Embodiment which actualized this invention. It is a top view which shows another use condition of the same joint assembly stand. It is a side view of the arm part support body of the joint assembly stand. It is a top view of the base part of the same arm part support body. It is a disassembled perspective view of the base part of the same arm part support body. It is a top view of the trunk | drum support body of the same joint assembly stand. It is a figure which shows the 1st aspect of the trunk | drum support body, (a) is a rear view, (b) is the bb sectional view taken on the line of (a). It is a figure which shows the 2nd aspect of the trunk | drum support body, (a) is a rear view, (b) is the bb sectional view taken on the line of (a). It is a perspective view of each element of a steel frame pillar.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Joint assembly stand 2 Surface plate 3 trunk | drum support body 4 arm part support body 5 positioning hole 6 fixing bolt 7 hole 8 guide groove 11 support body main body 12 trunk | drum positioning part 13 mounting tool 15 positioning board 15a recessed part 16 feed screw 21 Base frame portion 22 Fixing means 23 Locking portion 25 X direction movable frame 26 Y direction movable member 26a Through hole 27 Cap member 28 Position adjusting portion 29 Position adjusting screw 30 Guide member 31 Fixing nut 33 Long hole 34 Long hole 35 Female screw hole 36 movable member 36a through hole 37 guide bolt 41 mounting portion 42 column portion 43 support arm 44 clamp tool 45 base frame portion 45a first frame portion 45b second frame portion 50 steel column 51 joint 52 trunk portion 53 arm portion 54 column

Claims (3)

A joint assembly table for assembling a joint having a structure in which a plurality of arms are radially fixed to the side surface of the body part,
A surface plate as a base for assembling the joint,
A body support attached to the upper surface of the surface plate so as to support the body on the surface plate;
An arm support that is attached to the upper surface of the surface plate so as to support the arm portion at a welding fixing position with respect to the body portion supported on the surface plate,
In the surface plate, a large number of positioning holes are regularly arranged on substantially the entire upper surface,
The barrel support and the arm portions support by each of the base and a pair of fixing means for fixing via respective fixing bolts to the pair of the positioning holes respectively provided, through the positioning hole, the Each of the body support and the arm support is configured to be attached to the surface plate independently of each other so as to have a required position and direction .
The base is formed in a rectangular frame shape and is configured to be placed on the upper surface of the surface plate,
The fixing means is supported so as to be slidable in the X direction within the frame of the base portion, and slidable in the Y direction (a direction perpendicular to the X direction) with respect to the X direction movable frame. , A Y-direction movable member having a through-hole for inserting the shaft portion of the fixing bolt, a cap member covering the head of the fixing bolt, and the fixing bolt with respect to the base portion via the cap member. A position adjusting unit for adjusting the position in the X direction or the Y direction, and the fixing position of the base with respect to the positioning hole to be fixed is parallel to the upper surface of the surface plate in the base. A joint assembly table configured to be adjustable in the X direction and the Y direction perpendicular to each other in a plane . The position adjusting unit includes a position adjusting screw coupled to the cap member so that one end side of the cap member is rotatable about an axis and is not relatively movable in the axial length direction (position adjusting direction), and orthogonal to the position adjusting direction in a plan view. A guide member that is supported by the base so as to be reciprocally movable in a direction, and that guides the position adjustment screw to be rotatable and slidable in a position adjustment direction, and is screwed to the position adjustment screw so as to sandwich the guide member The joint assembly table according to claim 1 , further comprising a pair of fixing nuts for fixing the position adjusting screw to the guide member .   The joint assembly table according to claim 1 or 2, wherein the body part is supported by a plurality of body part supports attached to the surface plate independently of each other.

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