JP7268892B2 - Column backing metal positioning device - Google Patents

Description

The present invention relates to a column backing metal locating device used, for example, when manufacturing a column assembly that is an element of a steel frame structure, and in particular, a column that can be used for a short column with a length of 100 mm or less. The present invention relates to a backing metal positioning device.

Conventionally, when constructing a steel frame structure, the column assembly, which is the element of the steel frame structure, is assembled in advance at a factory, etc., and the assembled column assembly is brought to the site and combined with other elements such as beams. Construction of steel structures is practiced.
When assembling columns in a factory or the like, a joint block is assembled as a connecting portion with a beam, etc., and the first step in assembling the joint block is to cut it to a predetermined length. This is a step of attaching backing metals to both ends of the beveled column.

In the backing metal installation process, it is necessary to keep the amount of protrusion of the backing metal from the groove of the column constant in order to compensate for variations in the length of the column and processing accuracy of the grooves on both ends. The work of positioning with respect to the column becomes important.
Conventionally, such work relied on the skill and experience of the operator, but recently, a column backing plate positioning device as shown in Patent Document 1 below has been developed so that even an inexperienced worker can easily operate the backing plate. can be attached to the column with high accuracy and in a short period of time.

JP-A-4-200994

On the other hand, in recent years, due to the diversification of design specifications for steel structures, there has been a demand to use a column with a short column length of about 100 mm.
However, in conventional column backing metal positioning devices including the above-mentioned Patent Document 1, the support surface for supporting the column is formed on the slide table, so there is a limit to the distance that can be approached, and the shortest column length that can be accommodated. was about 200 mm. Therefore, a column having a shorter column length cannot be used as it is, and the request for shortening the column length cannot be met.

The present invention has been made on the basis of these points, and its object is to prevent interference with the movement of the slide base even for short columns with a column length of 100 mm or less. To provide a column backing metal positioning device capable of mounting a backing metal with high precision in a short time and having a wide range of corresponding column lengths.

In order to achieve the above object, the column backing metal positioning device according to claim 1 of the present invention comprises a base and a base, which is provided on the base and slides in a first direction, which is the axial direction of the column, to approach and separate. a pair of pillars provided on the slide pedestal and capable of adjusting the spacing in a second direction intersecting the first direction; An intermediate position between a positioning ruler that sets the center position of the column by contacting the groove and then positions the mounting position of the backing metal by separating it by a predetermined amount, and the pair of slide bases, a pair of clip blocks provided on a base at a position that does not interfere with the pair of slides and holding the column at the center position set by the positioning ruler from a second direction; and the set column. and a support surface for supporting the movably in a first direction and a second direction, the support surface being independent of and not interfering with the movements of the pair of slide bases and the pair of struts. It is characterized in that it is formed relative to a support frame that is provided in a state.

The column backing metal positioning device according to claim 2 is characterized in that, in the column backing metal positioning device according to claim 1, the support frame comprises the pair of pillars spaced apart in the second direction. It is characterized in that it is provided in a state of being bridged in the first direction so as to straddle the pair of slide bases that are spaced apart in the first direction and pass through the intermediate position.

A column backing metal positioning device according to claim 3 is the column backing metal positioning device according to claim 1 or claim 2, wherein a plurality of the support frames are provided so as to be aligned in the second direction. and the plurality of support frames are configured to be movable in the second direction to adjust the spacing therebetween.

And the following effects are obtained by the above means. That is, according to the column backing metal positioning device of the present invention, it is possible to form a support surface on a slide table that has a structurally limited approach distance, or to position the slide table at a position where the movement of the slide table may be hindered due to its structure. These problems do not occur unlike the case where the support surface is formed directly on the base. As a result, the pair of slide bases can be brought closer than before, so even for a short column with a column length of 100 mm or less, the backing metal can be accurately applied without interfering with the movement of the slide bases. Good and can be installed in a short time.

Further, the support frame is moved in the first direction so as to straddle the pair of slide bases spaced apart in the first direction, passing through the intermediate position of the pair of support columns spaced apart in the second direction. When provided in a bridged state, the support frame can be arranged without interfering with the movement of the pair of support columns and the pair of slide bases.

In addition, since the support surface of the support frame is formed over a wide range in the first direction, it is possible to support not only columns with short column lengths but also columns with long column lengths.

Further, when a plurality of support frames are provided so as to be aligned in the second direction, the column can be stably supported by the support frames by adjusting the spacing between the plurality of support frames according to the size of the diameter of the column to be used. becomes possible.

1 is a diagram showing an embodiment of the present invention, and is a perspective view showing a column backing metal positioning device. FIG. 1 is a diagram showing an embodiment of the present invention, and is a front view showing a column backing metal positioning device. FIG. FIG. 2 is a diagram showing an embodiment of the present invention, and is a right cross-sectional view showing a column backing metal positioning device. 1 is a plan view showing a column backing metal positioning device according to an embodiment of the present invention; FIG. FIG. 5 is a view showing the embodiment of the present invention, and is a cross-sectional view taken along the line AA in FIG. 4 showing the column backing metal positioning device. FIG. 5 is a view showing the embodiment of the present invention, and is a cross-sectional view taken along the line BB in FIG. 4 showing the column backing metal positioning device. FIG. 5 is a view showing the embodiment of the present invention, and is a sectional view taken along line CC in FIG. 4 showing the column backing metal positioning device. FIG. 8 is a view showing an embodiment of the present invention, and is a cross-sectional view taken along line DD in FIG. 7 showing the column backing metal positioning device. FIG. 10 is a diagram showing an embodiment of the present invention, and is a perspective view showing a working procedure of the column backing metal positioning device. It is a perspective view which shows the process of the first half in the assembly process of a column assembly. It is a perspective view which shows the process of the latter half in the assembly process of a column assembly. It is a side view which shows a column assembly. FIG. 4 is a diagram showing an embodiment of the present invention, and is a front view showing two modes of the support structure of the support frame.

Hereinafter, taking the illustrated embodiment as an example, the structure of the column backing metal positioning device of the present invention, the work procedure of the column backing metal positioning work using the column backing metal positioning device, and the column assembly. The assembly procedure will be specifically described.
In the following description, first, an outline of the overall structure of the column backing metal positioning device according to the present embodiment will be described. Next, the constituent members of the column backing metal positioning device will be specifically described. Next, the work procedure of the column backing metal positioning work using the column backing metal positioning device will be described. Next, a description will be given of the procedure for assembling the pillar using the temporary diaphragm assembly produced by the above procedure. Finally, another embodiment having a partial configuration different from that of the above embodiment will be mentioned.

(1) Overview of the overall structure of the column backing metal positioning device (see FIGS. 1 to 4 and 8)
The column backing metal positioning device 1 of the present invention is used for manufacturing a column assembly 101 which is a component of a steel frame structure, for example, when the column 103 is formed in the first half of the assembly process. It is used in the work of attaching the pad 107 .
Specifically, a base 3 configured by a rigid rectangular machine frame and a first direction (in the present embodiment) that is the axial direction of the column 103 along the rails 5, 5 on the base 3 A pair of slide bases 7L and 7R that slide toward and away from each other by sliding in the lateral direction) X, and a second direction that is provided on these two slide bases 7L and 7R and intersects with the first direction X. A pair of struts 9 and 10 capable of adjusting the distance in Y (in the front-rear direction in this embodiment) is provided for each of the struts 9 and 10 and directly abuts against the end surface of the groove 105 of the column 103 to Positioning rulers 11A and 11B for setting the center position O of 103 and then separating the backing metal 107 by a predetermined amount S to set the loose protrusion amount S of the backing metal 107 and position the mounting position P of the backing metal 107. , 11C, 11D and the positioning rulers 11A, 11B provided on the base 3 at intermediate positions between the pair of slide bases 7L, 7R and not interfering with the pair of slide bases 7L, 7R. Clip blocks 13 and 14 hold the column 103 at the center position O set by 11C and 11D from the second direction Y, and clip blocks 13 and 14 hold the set column 103 in the first direction X and the second direction Y. and a support surface A that supports the device in a movable state.

In the present invention, the support surface A is formed on a support frame 17 that does not interfere with the movement of the pair of slide bases 7A and 7B and the pair of columns 9 and 10 and is provided independently of them. ing.
Further, the column 103 is held in a fixed state by adjusting the distance between the operation handle 19 for moving the pair of slide bases 7L and 7R symmetrically toward and away from the base 3 and the pair of clip blocks 13 and 14. A fixed handle 21 is provided. Further, at an appropriate position on the base 3, a display unit 23 is provided for measuring the rotation of the operating handle 19 by a rotary encoder 79 shown in FIG. 8 and displaying it as a numerical value.

(2) Specific configuration of column backing metal positioning device (see FIGS. 1 to 8)
The base 3 has a base main body 25 with large openings on the upper and lower surfaces, and legs 27 are provided at the corners of the lower surface of the base main body 25 . Rectangular flat guide bars 29 are attached to the left and right side plates of the base body 25 so as to extend in the second direction Y with a gap E therebetween. The support frame 17 is configured to be able to reciprocate in the second direction Y along the guide bar 29 by engaging the guide bar 33 .
Stoppers 35 are provided at the front and rear ends of the guide bar 29 to restrict the range of movement of the support frame 17 .

Near the center of the front plate of the base body 25, the operation handle 19 is provided so as to protrude forward. A shaft portion 37 is attached to the operating handle 19 so as to extend rearward in the second direction Y, and a worm gear 39 is attached to a position near the middle of the shaft portion 37 .
Further, the rotation of the worm gear 39 is transmitted to a worm wheel 43 attached to the lower portion of a transmission shaft 41 extending in the vertical direction Z, and further transmitted through a transmission gear 45 attached to the upper portion of the transmission shaft 41. Rotational motion is converted into linear motion and transmitted to front and rear racks 47 and 49 extending in the first direction X and meshing with 45 . Of these two racks 47 and 49, the front rack 47 is connected to the left slide base 7L as an example, and the rear rack 49 is connected to the right slide base 7R as an example.

The slide bases 7L and 7R are long members each extending in the second direction Y and having a trapezoidal cross-sectional shape, for example. A fixed strut 9 is provided in a fixed state at the front end of the upper surface of the slide bases 7L and 7R. Rails 51 extending along the second direction Y are laid on the upper surfaces of the slide bases 7L and 7R, and slide bases 52 are engaged with the rails 51 and move along the second direction Y. A movable strut 10 is provided thereon.
At the front and rear ends of the lower surfaces of the slide bases 7L and 7R, sliders 55 are engaged with rails 5 and 5 extending in the first direction X laid on the front and rear ends of the upper surface of the base body 25 described above. are attached two by two as an example, and the above-described racks 47 and 49 are attached at intermediate positions on the lower surfaces of the slide bases 7L and 7R with their tooth flanks directed inward.

Positioning rulers 11A, 11B, 11C, and 11D can be rotated by a predetermined angle in horizontal directions X and Y, for example, around a rotation shaft 57 above each of the struts 9 and 10 provided on the left, right, and front and rear sides. is provided as follows. A member indicated by reference numeral 59 in the figure is a fixing knob used for tightening when regulating the rotation of the positioning rulers 11A, 11B, 11C, and 11D to fix them at the position for use, and a backing metal. When the positioning rulers 11A, 11B, 11C, and 11D are to be rotated outward after the 107 is temporarily fixed, it is used to release and loosen the fixation.

The positioning rulers 11A, 11B, 11C, and 11D include, for example, a columnar support post 53 having a square cross section and being elongated in the vertical direction Z, and a mounting ruler 53 arranged at equal intervals in the vertical direction Z with respect to the support post 53, for example. a plurality of screw holes 53a, an abutting piece 54 attached to the support post 53 using these screw holes 53a, a connecting portion 50 connecting the support posts 9, 10 and the support post 53; is configured as an example by providing
The abutting piece 54 is, for example, a metal member having an L-shaped cross section, and has a mounting base 54a whose flat plate portion on the base side is attached to the support post 53 by mounting bolts 78, and a flat plate portion on the free end side. is in contact with the end face of the groove 105 of the column 103 and the end face of the backing metal 107 to form a ruler acting portion 54b that directly functions as a ruler. A total of eight contact pieces 54 are provided, two for each support post 53 .

The pair of clip blocks 13 and 14 includes a fixed clip block 13 raised at the center of the front end of the upper surface of the base body 25 and a movable clip block 14 raised on the slide block 65. It is composed by The movable-side slide block 14 has a rail 61 extending along the second direction Y between the center of the rear end of the upper surface of the base body 25 and the middle position toward the front end thereof. As an example, two engaging sliders 63 are provided.
A fixed handle 21 is provided on the front surface of the fixed clip block 13 so as to protrude forward, and a screw shaft 67 is provided to extend rearward from the fixed handle 21 along the second direction Y. It is A female screw (not shown) that is screwed with the screw shaft 67 is formed on the slide block 65 described above. Furthermore, abutting plates 69 are attached to the upper portions of the opposing inner surfaces of the pair of clip blocks 13 and 14 to hold the column 103 in direct contact with the body of the column 103. A maximum column diameter W that can be clamped by the plates 69 is set to about 600 mm as an example.

The support frame 17 is a characteristic structural member of the present invention that is provided so as to be able to cope with the column 103 having a short column length L as well. In this embodiment, a front-view gate-shaped frame structure is adopted. A support frame 17 is disclosed with vertical bars 33, 33 extending vertically downwards.
A total of eight spherical rollers 71 are provided on the horizontal bar 31, two at the middle position and two each at the left and right positions separated by a predetermined distance. The apex serves as a fulcrum for supporting the body of the column 103 . A plane including these fulcrums is a support surface A of the support frame 17 .

The two spherical rollers 71 at the intermediate position are provided at positions close to each other so as to correspond to a short column 103 having a column length L of about 80 mm. The spherical rollers 71 are arranged at approximately equal intervals so as to correspond to the column 103 having a column length L of up to about 450 mm.
The horizontal bar 31 is supported by the rails 51 of the slide bases 7L and 7R and installed in a horizontal state.
The left and right vertical bars 33, 33 are formed, as an example, with a length such that their tips are engaged with the gap E formed between the base body 25 and the guide bar 29 described above.

Two sets of support frames 17 configured as described above are provided as an example so as to be aligned in the second direction Y in the present embodiment. are configured so that they can be moved to adjust the distance between them.
As a result, when a column 103 with a large column diameter W is used, the interval between the two sets of support frames 17 is widened, and when a column 103 with a small column diameter W is used, the interval between the two sets of support frames 17 is widened. is narrowed so that the columns 103 can be supported at an optimum interval for the column diameter W of the columns 103 to be used.

In the present embodiment, such two sets of support frames 17, 17 pass through the intermediate positions of the above-described pair of support columns 9, 10 spaced apart in the second direction Y, It is provided in a state of being bridged in the first direction X so as to straddle the pair of slide bases 7L and 7R described above which are spaced apart in the direction X. As shown in FIG.

(3) Work procedure for column backing metal positioning work (see Figures 9 and 10)
Next, the working procedure of the column backing metal positioning work performed by using the column backing metal positioning device 1 of the present invention constructed in this manner will be specifically described with reference to FIG.
First, as shown in FIG. 9(a), the operation handle 19 is turned to separate the left and right slide bases 7L and 7R so that they are wider than the column length L of the column 103 to some extent. Next, the clamp bar 52a is loosened to move the slide base 52, and the space between the struts 9 and 10 is set wider so that a storage space larger than the column diameter W of the column 103 to be used is formed. Next, the fixed handle 21 is turned to move the movable side clip block 14, and the distance between the clip blocks 13 and 14 is set larger than the column diameter W of the column 103 to be used. Further, the positions and intervals of the two sets of support frames 17, 17 are adjusted according to the column diameter W of the column 103 to be used.

Next, the column 103 is carried into a storage space defined by the separated left and right slide bases 7L and 7R, and the front and rear clip blocks 13 and 14 and the front and rear struts 9 and 10 which are also separated. set.
Next, as shown in FIG. 9B, the position of the movable post 10 is determined according to the column diameter W of the column 103 to be used, the position of the slide base 52 is fixed by the clamp bar 52a, and the contact piece 54 is fixed. Determine the mounting position and fix it. In this state, the operation handle 19 is turned to bring the left and right slide bases 7L and 7R closer to each other, and the ruler acting portion 54b of the contact piece 54 is brought into contact with the end face of the groove 105 of the column 103, thereby moving the column 103 to the center position. Move to O.
Then, the fixed handle 21 is turned to move the movable clip block 14 to the fixed clip block 13 side, and the column 103 is clamped and held between the pair of clip blocks 13 and 14 .

Next, as shown in FIG. 9(c), the operation handle 19 is turned to gradually separate the left and right slide bases 7L and 7R. At this time, the operator stops the rotation of the operating handle 19 when the predetermined amount of projection S is reached while viewing the numerical value on the display unit 23 .
As a result, a space corresponding to the protrusion amount S is provided between both end faces of the bevel 105 of the column 103 whose body is held by the pair of clip blocks 13 and 14 and the positioning rulers 11A, 11B, 11C and 11D. It is formed.

Next, as shown in FIG. 9(d), the operator puts one piece 109 of the backing metal 107, which is divided into four pieces, against the inner wall surface of the column 103, and positions the end surface of the piece 109. It is temporarily fixed in a state of being pressed against the ruler working surfaces of the extending rulers 11A, 11B, 11C, and 11D.
Thereafter, the remaining three pieces 109 are also temporarily fixed to the column 103 in the same manner. After the temporary fixing of all the pieces 109 is completed, the fixing knob 59 is loosened, and the four positioning rulers 11A, 11B, 11C, and 11D are rotated outward about the rotation shaft 57 and retracted. The main welding process of the column 103 and the backing metal 107 is started.

(4) Column assembly procedure (see Figures 10 to 12)
Backing metals 107 are welded to the grooves 105 at both ends of the column 103, and two diaphragms 111 are attached by welding as shown in FIG.
After manufacturing the diaphragm temporary assembly 113 , the fixed handle 21 is turned and loosened, and the diaphragm temporary assembly 113 held by the pair of clip blocks 13 and 14 is removed from the column backing metal positioning device 1 .

Next, a necessary number of brackets 115 are attached by welding to the fabricated diaphragm temporary assembly 113 as shown in FIG. Next, a required number of manufactured joint blocks 117 and columns 119 cut to a predetermined length are prepared, and these are welded and assembled to form a column assembly 101 as shown in the figure. be done.
Subsequently, the required number of column assemblies 101 for the steel frame structure to be constructed is assembled. In the column assembly 101 assembled in this manner, the column length L of the column 103 is shorter than that of the conventional one, as shown in FIG. It is ready to respond.

According to the column backing metal positioning device 1 of the present invention configured in this manner, the left and right slide bases 7L and 7R can be moved even for a short column 103 with a column length L of 100 mm or less. The backing metal 107 can be accurately attached in a short time without interfering with the movement of the . In addition, it becomes possible to assemble the column assembly 101 using the short column 103 with the extremely short column length L as described above. As a result, it is possible to shorten the construction period and reduce the construction cost by using it for construction of various steel structures with different design specifications.

[Other embodiments]
The column backing metal positioning device 1 of the present invention is not limited to the above-described embodiment, and can be modified within the gist of the invention.
For example, as shown in FIGS. 1 to 12 and 13(a), the support frame 17 may be installed by a gap E between the support by the rail 51 and the guide bar 29 provided on the side surface of the base body 25 of the base 3. 13(b), the upper surface of the base body 25 is reinforced with a highly rigid top plate 75 or the like, and grooves 77 and rails are formed on the upper surface of the top plate 75. It is also possible to install the support frame 17 by using, for example.

In addition, a roller or the like is provided at the bottom of the vertical bar 33 of the support frame 17 to facilitate movement of the support frame 17 in the second direction Y, and locking means or the like for fixing the position of the installed support frame 17 is provided. can also be provided.
Also, in the case where a plurality of support frames 17 are provided, two sets are used as an example, but three sets or more may be used.
In the above-described embodiment, the support frame 17 has a gate-shaped structure and is installed so as to be supported by the rails 51 , but it may be supported by a cover member installed on the rails 51 .
In addition, the structure of the support frame 17 is not limited to the portal structure described in the above embodiment. Alternatively, the support frame 17 can be made of channel steel, square pipe, or the like.

The column backing metal positioning device of the present invention can be used at the production site of column assembly performed in a factory or the like prior to the assembly of a steel frame structure at the site, and a short column with a particularly short column length is used. It has applicability when it is desired to manufacture the column assembly efficiently and accurately.

1 Column Backing Metal Positioning Device 3 Base 5 Rail 7 Slide Base 9 Fixed Support 10 Movable Support 11 Positioning Ruler 13 Fixed Side Clip Block 14 Movable Side Clip Block 17 Support Frame 19 Operating Handle 21 Fixed Handle 23 Display Unit 25 Base Base body 27 Leg 29 Guide bar 31 Horizontal bar 33 Vertical bar 35 Stopper 37 Shaft 39 Worm gear 41 Transmission shaft 43 Worm wheel 45 Transmission gear 47 Rack 49 Rack 50 Connecting part 51 Rail 52 Slide base 52a Clamp bar 53 Support post 53a Screw Hole 54 Contact piece 54a Mounting base 54b Ruler action part 55 Slider 57 Rotating shaft 59 Fixed knob 61 Rail 63 Slider 65 Slide block 67 Screw shaft 69 Contact plate 71 Spherical roller 75 Top plate 77 Groove 78 Mounting bolt 79 Rotary encoder 101 Column Assembly 103 Column 105 Groove 107 Backing Metal 109 Piece 111 Diaphragm 113 Diaphragm Temporary Assembly 115 Bracket 117 Joint Block 119 Column X First direction (horizontal direction)
Y second direction (forward-backward direction)
X, Y Horizontal direction A Support surface O Center position P Mounting position S Predetermined amount (projection amount)
Z Vertical direction E Gap L Column length W Column diameter

Claims (3)

a base;
a pair of slide pedestals provided on the base pedestal and slidable in a first direction, which is the axial direction of the column, to approach and separate from each other;
a pair of pillars provided on the slide base and capable of adjusting the spacing in a second direction intersecting the first direction;
a positioning ruler provided for each of the above-mentioned columns, which directly abuts on the groove of the column to set the center position of the column, and then moves away from the ruler by a predetermined amount to position the mounting position of the backing metal;
A column provided on a base at a position intermediate between the pair of slide bases and not interfering with the pair of slide bases, and sandwiching the column at the center position set by the positioning ruler from the second direction. a pair of clip blocks that hold the
a support surface that supports the set column so as to be movable in a first direction and a second direction;
A column backing metal positioning device, wherein the support surface is formed on a support frame that is provided independently of the pair of slide bases and the pair of struts without interfering with their movements. . The support frame passes through an intermediate position of the pair of support columns spaced apart in the second direction and straddles the pair of slide bases spaced apart in the first direction. 2. The column backing metal positioning device according to claim 1, wherein the column backing metal positioning device is provided in a state of being bridged over the column. A plurality of the support frames are provided so as to line up in the second direction, and the plurality of support frames are configured to be movable in the second direction to adjust the mutual spacing. 3. The column backing metal positioning device according to claim 1 or 2.

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