3D jig for manufacturing modular structure for construction

Abstract

A 3D jig for manufacturing a modular structure for construction according to an embodiment of the present invention comprises: a base including a first base rail and a second base rail that are arranged in a first direction and aligned parallel to each other; a post which includes a clamp for holding a member of the modular structure and is disposed above the first base rail or the second base rail, and which can be changed in position in a first direction above the first base rail or the second base rail in accordance with the size of the modular structure in the first direction; and a locator which includes a fixing pin at the top end, causes the fixing pin to be seated in a joint hole formed in a lower portion of a member included in the bottom of the modular structure, thereby fixing the modular structure to the base, and is detachably coupled at an arbitrary position to the upper surface of the base. The post includes, in a lower portion, a post LM guide arranged in a second direction, and an upper portion, disposed above the post LM guide, of the post can be changed in position in the second direction through the post LM guide in accordance with the size of the modular structure in the second direction. Therefore, the clamp grips and fixes the modular structure member at the correct position so that the modular structure member is precisely horizontal or vertical, thereby enabling precise welding or joining operations, and makes it possible to easily and accurately manufacture modular structures of various sizes.

Description

3D Jig for Fabricating Modular Structures for Building Construction

[0001] The present invention relates to a 3D jig that improves the manufacturing precision of modular structures by accurately adjusting the verticality and horizontality of beams, columns, walls or slabs during the process of joining them in the manufacturing of modular structures for construction and by firmly and stably holding and fixing them in an accurate position.

[0002] Unlike conventional construction methods, modular construction involves manufacturing the interior and exterior of a single modular structure in a factory. This is then transported to the construction site, where one or more modular structures are stacked and assembled to complete the building. These factory-built modular structures include not only the skeleton, including columns and beams, but also the interior walls, doors, windows, and various mechanical and electrical equipment that comprise bathrooms and kitchens.

[0003] Therefore, modular construction methods can dramatically shorten construction periods, ensure consistent quality, minimize construction defects, and, with mass production systems, even reduce costs. Furthermore, modular components require no cutting or other fabrication processes, minimizing losses. This facilitates expansion and renovation, and the materials can be easily reused and recycled after use, making them an environmentally friendly method.

[0004] Typically, modular structures for construction are constructed in a hexahedral shape, resembling a rectangular box. They include columns forming the framework at the four vertical corners, ceiling beams connecting the upper portions of the columns, and floor beams connecting the lower portions of the columns. The beams, including the columns, ceiling beams, and floor beams, are typically made of steel, such as steel, but can also be made of various materials, including non-ferrous metals like aluminum, wood, or plastic. Depending on the size and internal design of the modular structure, the number of columns and beams can be four or more.

[0005] Conventional modular structures for construction are manufactured in factories using plumb lines and spirit levels to measure vertical and horizontal alignment, then manually weld and secure columns, ceiling beams, and floor beams. Furthermore, temporary supports have been used to absorb deformation during skeletal welding, without any separate fixing devices. This method of modular construction leads to significant deformation and construction errors during the welding of columns, ceiling beams, and floor beams. When multiple modular structures with errors are connected on-site, the entire building cannot be constructed according to design, potentially leading to structural defects. Furthermore, significant defects in insulation, airtightness, soundproofing, and waterproofing can occur over time.

[0006] An embodiment of the present invention provides a 3D jig for manufacturing a modular structure for construction by firmly fixing each member horizontally or vertically in an accurate position during the process of welding members such as beams, columns, walls or slabs together or joining them using bolts or rivets, etc., to manufacture a modular structure for construction with an accurate size and shape without error.

[0007] The problems to be solved by the present invention are not limited to the problem(s) mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

[0008] A 3D jig for manufacturing a modular structure for construction according to an embodiment of the present invention comprises: a base including a first base rail and a second base rail arranged in a first direction and aligned parallel to each other; a post including one or more clamps for holding a member including a beam, a column, a wall or a slab of the modular structure, the post being arranged on the first base rail or the second base rail and being capable of changing its position in the first direction on the first base rail or the second base rail in response to a size of the modular structure in the first direction; A locator is provided, which includes a fixing pin at the top, and is configured to be fixed to the base by allowing the fixing pin to be seated in a joining hole formed at the bottom of the member included in the bottom of the modular structure, so that the modular structure is fixed to the base, and is detachably coupled to the top surface of the base at any position; wherein the post includes at least one post LM guide arranged in a second direction perpendicular to the first direction at the bottom, and the upper portion of the post arranged above the post LM guide can be positionally changed in the second direction through the post LM guide in response to the size of the modular structure in the second direction.

[0009] In the above embodiment, the upper part of the post can be positioned in the second direction by hydraulic or compressed air driving of the post LM guide.

[0010] In the above embodiment, the clamp is positioned on the upper part of the post, and can be positioned in the second direction by changing the position of the upper part of the post, and can hold the member in response to the size of the modular structure in the second direction.

[0011] In the above embodiment, the clamp can hold the member by hydraulic or compressed air operation.

[0012] In the above embodiment, the clamp can be positioned in a third direction perpendicular to the first and second directions, and can hold the member corresponding to the size of the modular structure in the third direction.

[0013] In the above embodiment, the clamp can be positionally changed by including a clamp LM guide that is driven in a third direction perpendicular to the first and second directions, and the clamp LM guide can be driven by hydraulic pressure or compressed air.

[0014] In the above embodiment, the clamp is formed to be detachable from the post through a bolt or pin, and the detachable position can be changed in a third direction perpendicular to the first and second directions.

[0015] In the above embodiment, a plurality of posts may be included, and a control unit may be included to control the first base rail, the second base rail, the post LM guide, and the clamp LM guide to adjust the spacing or height relationship between the clamps included in different posts.

[0016] In the above embodiment, a work platform for high-altitude work of the member held by the clamp may be included.

[0017] In the above embodiment, the work table can be positioned to correspond to the position of the post.

[0018] According to an embodiment of the present invention, a clamp attached to a post holds and fixes a member such as a beam, column, wall or slab in an accurate horizontal or vertical position, thereby enabling precise welding or joining operations, thereby enabling the production of a unit of a modular structure to an accurate size, and allows the post to move freely on a base, thereby enabling easy and accurate production corresponding to modular structures of various sizes.

[0019] FIG. 1 is a schematic drawing of a 3D jig for manufacturing a modular structure for construction according to an embodiment of the present invention.

[0020] FIG. 2 is a schematic drawing of a post according to an embodiment of the present invention.

[0021] FIG. 3 is a schematic diagram illustrating a locator according to an embodiment of the present invention.

[0022] FIG. 4 is a schematic drawing showing an example of each member of a construction module being gripped on a 3D jig according to an embodiment of the present invention.

[0023] FIG. 5 is a schematic drawing illustrating an example of a safety bar mounted on a post according to an embodiment of the present invention.

[0024] Figure 6 is a schematic drawing of a workbench according to an embodiment of the present invention.

[0025] The advantages and / or features of the present invention, and the methods for achieving them, will become clearer with reference to the embodiments described in detail below together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms. These embodiments are provided only to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

[0026]

[0027] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

[0028]

[0029] FIG. 1 is a schematic drawing of a 3D jig for manufacturing a modular structure for construction according to an embodiment of the present invention.

[0030] Referring to FIG. 1, a 3D jig for manufacturing a modular structure for construction according to an embodiment of the present invention includes a base (1) arranged on a bottom surface, a post (3) arranged on an upper portion of the base (1) and including a clamp (35) for holding a member of the modular structure, and a locator (5) for stably fixing the lower portion of the modular structure to the base (1).

[0031] The base (1) is arranged on the floor of a factory where modular structures are manufactured so as to be level with the ground plane. The base (1) may be formed of a single plate or may be formed of a plurality of plates of different thicknesses. In this case, each plate must be connected to each other to integrally support the upper working load and must be arranged so as to be level with the ground plane. The upper portion of the base (1) includes a first base rail (13a) and a second base rail (13b) which are arranged in a first direction (a) and aligned parallel to each other. The side surfaces of the box-shaped modular structure each have two long sides and two short sides. The first direction (a) may be aligned with the direction of the short sides, but it is preferable to be set so as to be aligned with the direction of the long sides for the purpose of arranging the post (3) and facilitating stable gripping and fixing of the modular structure. The first base rail (13a) and the second base rail (13b) may each be composed of one rail, but may also be composed of two or more rails for stable fixation and smooth movement of the post (3), and when composed of multiple rails, each rail may be arranged side by side in the first direction (a). The first base rail (13a) and the second base rail (13b) may be formed of a rail made of a high-strength material such as steel, and may be formed so as to support a rolling means such as a roller that may be included in the lower surface of the post (3). The first base rail (13a) and the second base rail (13b) may be formed so that a portion of the upper surface of the base (1) is formed as a groove formed in the first direction (a), and a rolling means such as a roller that may be included in the lower surface of the post (3) may be formed so as to be movable within the groove. In addition, the first base rail (13a) and the second base rail (13b) can be formed in the form of a linear motion guide, and can be formed so that the post (3) can slide in the first direction (a) over the first base rail (13a) and the second base rail (13b) by slipping with a lubricant without a separate rotation means such as a roller.

[0032] The post (3) can be placed on the first base rail (13a) or the second base rail (13b) on the upper part of the base (1). One post (3) can be placed on each of the first base rail (13a) or the second base rail (13b), but two or more posts (3) can be placed to stably fix the modular structure. The number of posts (3) to be placed on each rail can be appropriately set according to the length of the long side, the number of columns, the type of work, etc. The post (3) can be moved on the first base rail (13a) or the second base rail (13b) by means of a motor that directly applies rotational force to wheels that can be included at the bottom. In addition, the post (3) can be moved on the first base rail (13a) or the second base rail (13b) by means of a pushing or pulling force caused by the rotation of a hydraulic or compressed air operating means or an external motor. The post (3) can be fixed to the base (1) using a separate fixing means to ensure stable operation after movement. The separate fixing means can be a fastening bolt or a fixing pin.

[0033] The locator (5) may be formed to stably fix the lower part of the modular structure to the base (1). The locator (5) may be formed to be detachable from the base (1) in order to change its position to stably fix modular structures of various sizes, or in cases where the support part of the modular structure needs to be changed or reinforced during work. The locator (5) may be fastened to the base (1) with bolts or pins, or fixed with clamps. In this case, the base (1) may have a plurality of holes formed therein, and the locator (5) may be attached to the base (1) with bolts, etc. through the formed holes. In addition, since the horizontal slip of the locator (5) may be restricted by the weight of the modular structure, the locator (5) may be placed on the base (1) in the form of a pedestal without a separate fixing member, and the modular structure may be mounted thereon. In this case, a part of the pedestal may also be fixed to a hole of the base (1) using pins, etc.

[0034]

[0035] Figure 2 is a schematic drawing of a post (3) according to an embodiment of the present invention.

[0036] Referring to Fig. 2, the post (3) can be divided into a post upper portion (31) and a post lower portion (33). The upper surface of the post lower portion (33) may include a post LM guide (37) that enables a change in the position of the post upper portion (31) provided thereon. The post LM guide (37) may be arranged in a direction unrelated to the first direction (a) mentioned above. However, considering that the first base rail (13a) or the second base rail (13b) is arranged parallel to the long side and the modular structure must be more firmly held, the post LM guide (37) may also be arranged in a direction parallel to the cross-section of the modular structure, that is, in a second direction (b) orthogonal to the first direction (a). Through the post LM guide (37), the post upper portion (31) can be positioned in response to the two-way size of the modular structure, that is, the length of the short side, so that a member such as a beam or column can be held more firmly.

[0037] The post (3) may include one or more post LM guides (37) for stable position change of the post upper portion (31). The post LM guide (37) may be formed of a rail made of a high-strength material such as steel, and may be formed to support a rolling means such as a roller that may be included in the lower surface of the post upper portion (31). The post LM guide (37) may be formed in a groove shape in the second direction (b) on the upper surface of the post lower portion (33), and may be formed so that a rolling means such as a roller that may be included in the lower surface of the post upper portion (31) can move within the groove. In addition, the post LM guide (37) may be formed in the form of a linear movement guide, and may be formed so that the lower surface of the post upper portion (31) can slide against the upper surface of the post lower portion (33) in the second direction (b) by slipping due to a lubricant without a separate rotation means such as a roller.

[0038] The upper post (31) can change its position on the upper surface of the lower post (33) by means of a motor or the like that directly applies rotational force to wheels or the like that may be included on the lower surface. In addition, the upper post (31) can change its position on the upper surface of the lower post (33) by means of a pushing or pulling force caused by the rotation of a hydraulic or compressed air operating means or an external motor. The upper post (31) can be fixed to the lower post by means of a separate fixing means for stable operation after the position change. The separate fixing means can be a fastening bolt or pin.

[0039] The post (3) may include a clamp (35) for holding a member such as a beam, column, wall or slab of a modular structure on the upper part of the post (31). The post (3) may include one clamp, but may also include multiple clamps for holding multiple parts of the members, such as holding the upper and lower parts of a column at the same time, or holding a column and a ceiling beam at the same time. The clamp (35) may hold the member individually, but different clamps included in different posts (3) may push or pull the member located between them to secure it stably. In addition, the clamp (35) may support or support the member from below. The clamp (35) may hold or release the member or push or pull the member by a hydraulic or compressed air driven means. The clamp (35) can be positioned in a third direction (c) that is perpendicular to the vertical direction, i.e., the first direction (a) and the second direction (b) on the upper part of the post (31). That is, the clamp (35) may include a clamp LM guide (39), through which the height in the third direction (c) can be adjusted. Accordingly, by adjusting the height of the clamp (35) in response to the size of the modular structure in the third direction (c), i.e., various heights, the column or ceiling beam can be more stably held, pushed or pulled. The clamp LM guide (39) can be operated by a hydraulic or compressed air driving means. In addition, the clamp (35) is formed to be detachable so that it can be directly fastened to the post (3) at various heights with a bolt or pin. Since the members of the modular structure can be supported more firmly through the free horizontal movement of the post (3) and the free vertical movement of the clamp (35), it absorbs deformation that may occur during the skeletal welding, enabling accurate manufacturing with the planned dimensions.

[0040]

[0041] Figure 3 is a schematic drawing of a locator (5) according to an embodiment of the present invention.

[0042] Referring to Fig. 3, the locator (5) may include a fixing pin (51) and a pin fixing block (53). As described above, the locator (5) may include a pedestal-shaped configuration placed on the base (1) without a separate fixing means instead of the pin fixing block (53). The locator (5) may be positioned and fixed on the upper part of the base (1) via the pin fixing block (53) or the pedestal. The fixing pin (51) is arranged on the upper part of the locator (5). A circular joining hole may be formed in the bottom part of the modular structure, that is, the bottom part of the floor beam or pillar, and when the modular structure is mounted on the upper part of the locator (5), the fixing pin (51) is settled into the joining hole, so that the bottom of the modular structure can be finally firmly fixed to the base (1). Since the size of the long or short sides of the modular structure varies and may be asymmetrical or missing, the locator (5) can be freely changed to any position on the base (1) so that the modular structure can be fixed on the base (1) in an optimal state.

[0043]

[0044] FIG. 4 is a schematic drawing showing an example of each member of a construction module being gripped on a 3D jig according to an embodiment of the present invention.

[0045] Referring to Fig. 4, the modular structure in the shape of a rectangular parallelepiped illustrated herein comprises six columns, seven floor beams, and seven ceiling beams. The joints of the floor beams and columns are supported by locators (5) to be firmly fixed to the base (1), and each column is gripped by a clamp (35) of a post (3) to be firmly fixed. As a result of manufacturing the modular structure illustrated herein using an actual 3D jig, it was confirmed that the manufacturing error was within 0.5 mm.

[0046]

[0047] Fig. 5 is a schematic drawing showing an example of a safety bar (7a) mounted on a post (3) according to an embodiment of the present invention.

[0048] Referring to Fig. 5, the safety bar (7a) may be configured to prevent access to the upper part of the working post (31) or to ensure the safety of a worker riding on the upper part of the post (31) while the position of the upper part of the post (31) is being changed. The safety bar (7a) is illustrated as a fence-shaped safety bar, but may also be implemented as a safety bar in the form of a screen or net.

[0049]

[0050] Figure 6 is a schematic drawing of a workbench (7) according to an embodiment of the present invention.

[0051] Referring to Fig. 6, the worktable (7) can be configured for the safety and convenience of the worker when performing work such as welding or joining on members held or supported by the clamp (35). In particular, when performing work at heights such as welding or joining ceiling beams, the worker can safely and conveniently perform the work by boarding the worktable (7). For the worker's easy and safe boarding, the worktable (7) can include stairs or a safety bar (7b). The position of the worktable (7) can be changed in response to the position of the post (3). That is, when the position of the post (3) is changed in the first direction (a), the position can be changed to perform work on the members held on the post (3). In addition, regardless of the change in the position of the post (3), when work needs to be performed on various parts of the members, the position of the worktable can also be changed to a position that facilitates work on the relevant part. The position change of the worktable (7) can be applied by applying the method of changing the position of the post (3) on the base (1) through the first base rail (13a) or the second base rail (13b). In addition, the worktable (7) can be positioned independently of the base by leaving the upper surface of the base, and in this case, the position change of the worktable (7) can be made possible by using a moving means such as a wheel, roller, or rail on the bottom.

[0052]

[0053] As described above, the embodiments of the present invention enable the production of modular structures of various specifications. Furthermore, by applying manufacturing methods to the 3D assembly process, which has been the greatest challenge in manufacturing modular structures in factories, production lines can be easily established. This allows for the production of modular structures with high precision while dramatically improving productivity.

[0054]

[0055] While specific embodiments of the present invention have been described so far, it is clear that various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the claims set forth below, but also by equivalents thereof.

[0056] Although the present invention has been described with reference to limited embodiments and drawings, it is not limited to the above-described embodiments. Those skilled in the art will appreciate that various modifications and variations are possible based on this disclosure. Therefore, the scope of the present invention should be understood solely by the scope of the claims set forth below, and all equivalent or equivalent modifications thereof are deemed to fall within the scope of the present invention.

Claims

1. In a 3D jig for manufacturing modular structures for construction, A base including a first base rail and a second base rail arranged in a first direction and aligned parallel to each other; A post comprising one or more clamps for holding a member including a beam, column, wall or slab of the modular structure, the post being positioned on the first base rail or the second base rail and being capable of changing its position in the first direction on the first base rail or the second base rail in response to the size of the modular structure in the first direction; A locator is provided, which includes a fixing pin at the top, and fixes the modular structure to the base by allowing the fixing pin to be seated in a joining hole formed at the bottom of the member included in the bottom of the modular structure, and is coupled to the upper surface of the base so as to be detachable at any position; A 3D jig for manufacturing a modular structure, wherein the post includes one or more post LM guides arranged in a second direction perpendicular to the first direction at the bottom, and the upper portion of the post arranged above the post LM guide can be positionally changed in the second direction through the post LM guide in response to the size of the modular structure in the second direction.

2. In paragraph 1, A 3D jig for manufacturing a modular structure, characterized in that the upper part of the post is positionally changed in the second direction by hydraulic or compressed air driving of the post LM guide.

3. In paragraph 1, A 3D jig for manufacturing a modular structure, characterized in that the clamp is positioned on the upper part of the post and can be positioned in the second direction by changing the position of the upper part of the post, and grips the member corresponding to the size of the modular structure in the second direction.

4. In paragraph 1, A 3D jig for manufacturing modular structures, characterized in that the clamp grips the member by hydraulic or compressed air operation.

5. In paragraph 1, A 3D jig for manufacturing a modular structure, wherein the clamp is capable of changing position in a third direction perpendicular to the first and second directions, and grips the member corresponding to the size of the modular structure in the third direction.

6. In paragraph 1, A 3D jig for manufacturing a modular structure, wherein the clamp is capable of changing position by including a clamp LM guide driven in a third direction perpendicular to the first and second directions, and the clamp LM guide is driven by hydraulic pressure or compressed air.

7. In paragraph 1, A 3D jig for manufacturing a modular structure, wherein the clamp is formed to be detachable from the post via a bolt or pin, and the detachable position can be changed in a third direction perpendicular to the first and second directions.

8. In paragraph 6, A 3D jig for manufacturing a modular structure, characterized in that it includes a control unit that controls the first base rail, the second base rail, the post LM guide, and the clamp LM guide to adjust the spacing or height relationship between clamps included in different posts, and includes a plurality of posts.

9. In paragraph 1, A 3D jig for manufacturing a modular structure, characterized in that it includes a worktable for high-altitude work of the member held by the clamp.

10. In paragraph 9, A 3D jig for manufacturing a modular structure, characterized in that the worktable changes position corresponding to the position of the post.

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