Super + type insulation box finished product manufacturing method

Abstract

The invention discloses a Super + type insulation box finished product manufacturing method, an insulation box comprises a main layer insulation box and a secondary layer insulation box, and the method comprises the following steps: 1) preparing an insulation box large plate unit; 2) preparing a semi-finished product single-piece large board; 3) preparing a semi-finished product of a single insulation box; 4) assembling the single semi-finished product of the insulation box with other parts (clamping plate assemblies and wedge blocks); 5) positioning and clamping the insulation box single semi-finished product and other parts; and (6) nailing. Aiming at the product structure characteristics of the Super + type insulation box, the invention provides an integral manufacturing method of a whole-series box type covering a main-layer insulation box and a secondary-layer insulation box, and solves the problems that in the prior art, the processing size requirement of parts is high, the technological process is complicated, the manufacturing cost of auxiliary tools is high, the logistics turnover cost in the production process is high, and the production efficiency is high. And the technical process is simple, the quality is stable, the process is reliable, and the production efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of manufacturing technology for Super+ type insulation boxes, and more specifically to a method for manufacturing a finished Super+ type insulation box. Background Technology

[0002] The NO96 Super+ cargo containment system is a large-scale LNG containment system with a typical capacity of 174,000 cubic meters and a low evaporation rate (BOR) of 0.085% V / d (compared to 0.10% V / d for NO96 L03+ and 0.10% V / d for MARK III). As shipowners increasingly focus on reducing evaporation rates to minimize transport losses, the commissioning of the NO96 Super+ cargo containment system can meet the higher market demand for larger / ultra-large LNG carriers with greater capacity.

[0003] As a core component of the LNG containment system, the insulation boxes, composed of reinforced polyurethane panels, utilize modular and standard prefabricated components. They can adapt to various shapes and capacities of cargo tanks, are easy to assemble, and are suitable for large-scale production. The insulation boxes are mainly divided into Super+ type, L03+ type, and MARK III type. Although the Super+ type, L03+, and MARK III insulation boxes all use reinforced polyurethane panels as the primary cryogenic insulation medium, their different structural characteristics result in significant differences in manufacturing processes between the Super+ type and other types of polyurethane insulation boxes.

[0004] Currently, the manufacturing of Super+ insulation boxes largely borrows from the methods used for polyurethane insulation boxes such as MARK III or L03+. The common manufacturing process includes: gluing, correction, lamination, stacking, pressing, and aging. However, due to the limitations of MARK... The product structure of polyurethane insulation boxes such as MARKIII or L03+ differs fundamentally from that of Super+ insulation boxes. These manufacturing methods are difficult to apply to the manufacturing of Super+ insulation boxes and cannot guarantee the final product quality. For example, patent application number 201910350163.5 discloses a method for assembling and manufacturing the bottom component of a large-size polyurethane insulation box for LNG ships, and patent application number 201910350160.1 discloses a box assembly system and method for polyurethane insulation boxes for LNG ships. Both of these patents propose corresponding process methods for manufacturing polyurethane insulation boxes such as MARKIII or L03+. Because the manufacturing method of L03+ insulation boxes has high requirements for the processing dimensions of parts, especially the high precision control requirements for polyurethane boards during the parts processing, and the process is complex, the manufacturing cost of auxiliary tooling and the logistics turnover cost of the production process are also high, resulting in low turnover efficiency, which restricts the overall production efficiency.

[0005] In addition, patent application number 202211162464.3 discloses a manufacturing process for an LNG thin-film cabin SUPER+ secondary insulation box, which mainly has the following problems: 1) In the manufacturing process of the single large plate of the super+ insulation box, PU glue is sprayed onto the upper and lower plywood plates, and then the upper and lower plywood plates are respectively installed onto the top and bottom surfaces of the RPUF plate with PU glue to form a preliminary insulation box. In the process of assembling the upper plywood of SUPER+ with the reinforced polyurethane board, the glued surface of the upper plywood that has been coated with glue needs to be flipped so that the glued surface of the upper plywood can be attached to the reinforced polyurethane board (RPUF plate). This assembly method of flipping the glued surface will cause the glue to flow or drip during the flipping, affecting the uniformity of the glue coating and the stability of the bonding performance, and also causing glue dripping at the work site. 1) Pollution requires a dedicated flipping device, which is costly; 2) The processing of the SUPER+ portal strip uses a milling cutter to mill the four corner notches from the side, failing to consider the machining bosses present in the cylindrical milling cutter processing, as well as the corresponding process methods during the assembly of the secondary portal strip, making it difficult to accurately control the quality requirements of the accurate fit between the secondary portal strip (clamp assembly) and the box assembly in actual application; 3) Regarding the fixing method of the portal strip, the portal strip is clamped to the secondary insulation box by a pneumatic clamp, and the automatic nail gun at the bottom of the roller conveyor rises to hold the bottom plywood, and the automatic nail gun is started to nail the portal strip for reinforcement. This method fails to consider the pressing method between the portal strip and the bottom plywood, which will cause the portal strip to separate from the bottom plywood due to the vibration of the nail gun during the nailing process, affecting the quality of the final product. In addition, the nailing direction can only be from bottom to top, which poses a serious safety hazard. In summary, the existing methods for manufacturing SUPER+ type insulation boxes only address the secondary box type of SUPER+ type insulation boxes, proposing methods such as large plate preparation, door strip assembly, and nailing. These methods need to be improved and perfected in terms of quality stability, process reliability, and safety.

[0006] Therefore, providing a reliable and efficient manufacturing method for Super+ type insulation boxes is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0007] In view of this, the present invention provides a method for manufacturing a Super+ type insulation box, which simplifies the process of manufacturing the Super+ type insulation box, reduces manufacturing costs, and improves manufacturing efficiency and product quality.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A method for manufacturing a Super+ type insulation box, the insulation box comprising a main insulation box and a secondary insulation box, includes the following steps:

[0010] 1) Apply adhesive to the bottom plywood and the reinforcing polyurethane board. After applying the adhesive, the board is transferred to the assembly station. The automatic assembly machine moves the glued reinforcing polyurethane board and assembles it onto the glued bottom plywood. Then, the automatic assembly machine assembles the un-glued top plywood onto the reinforcing polyurethane board to form the large insulation box unit.

[0011] 2) Stack multiple insulation box large plate units sequentially until the set number of stacking layers is reached. Then, install the top pressure plate on the anti-drip adhesive board of the last layer of insulation box large plate unit. Press the plate into the press and then perform aging and destacking processes to form a glued single large plate. Sand the glued single large plate with equal thickness to form a semi-finished single large plate.

[0012] 3) After being cut, the semi-finished single large board is divided into multiple insulation box single small boards. Each insulation box single small board is precision machined by CNC machine tool to form an insulation box single semi-finished product;

[0013] 4) For the secondary insulation box, apply glue to the mating positions of the individual semi-finished insulation box piece and the clamping plate assembly of the secondary insulation box, and then assemble the clamping plate assembly and the individual semi-finished insulation box piece together; for the primary insulation box, apply glue to the mating positions of the individual semi-finished insulation box piece and the wedge block of the primary insulation box, and then assemble the wedge block and the individual semi-finished insulation box piece together.

[0014] 5) For the secondary insulation box, position and clamp the individual semi-finished insulation box pieces and the clamping plate assembly of the secondary insulation box; for the primary insulation box, position and clamp the individual semi-finished insulation box pieces and the wedge blocks of the primary insulation box.

[0015] 6) For the secondary insulation box, nail the joint between the bottom plywood and the clamping plate assembly; for the main insulation box, nail the joint between the bottom plywood and the wedge block.

[0016] By adopting the above technical solutions, the beneficial effects of the present invention are as follows:

[0017] This invention addresses the structural characteristics of Super+ type insulation boxes by proposing an integrated manufacturing method for a full range of box types, covering both the main insulation box and the secondary insulation box. This method solves the problems of existing technologies, such as high requirements for the processing dimensions of parts, complex processes, high manufacturing costs of auxiliary tooling, high logistics and turnover costs in the production process, and limited production efficiency. The invention features a simple process, stable quality, reliable technology, and high production efficiency.

[0018] Furthermore, during the stacking process in step 2), anti-drip adhesive sheets or films are laid between each insulation box large panel unit.

[0019] Furthermore, during the CNC machine tool finishing process of the single semi-finished insulation box in step 3), after the outer dimensions are finished to the required dimensions of the final product, a groove is machined at the four corners using a high-speed milling method to match the wedge block of the main insulation box, or a groove is machined to match the secondary clamping plate of the secondary insulation box. During this process, the high-speed milling tool processes from top to bottom to the position tangent to the bottom plywood, thereby forming a process boss between the bottom plywood and the reinforced polyurethane board.

[0020] Furthermore, in step 4), the method for manufacturing the clamping plate assembly is as follows: applying glue between the secondary strip and the secondary clamping plate, and then, on the clamping plate assembly assembly fixture, by controlling the dimensional accuracy of the clamping plate assembly, nailing is performed at the set position to form the clamping plate assembly.

[0021] Furthermore, the clamping plate assembly is a U-shaped assembly, a J-shaped assembly, or an L-shaped assembly. The dimensional accuracy of the U-shaped assembly includes the parallelism and gap dimensions between the two secondary clamping plates, as well as the perpendicularity and misalignment dimensions between the two secondary clamping plates and the secondary strip, so that the mating dimensions between the secondary clamping plates and the groove are controlled within +0.1 to +0.5 mm. The dimensional accuracy of the J-shaped assembly or L-shaped assembly includes the perpendicularity and misalignment dimensions between the secondary clamping plates and the secondary strip.

[0022] Furthermore, for the secondary insulation box, a notch is machined on the secondary plywood at the intersection with the bottom plywood and the reinforced polyurethane board to avoid the process boss; for the main insulation box, a notch is machined on the wedge at the intersection with the bottom plywood and the reinforced polyurethane board to avoid the process boss.

[0023] Furthermore, regarding the secondary insulation box, the positioning and clamping process of the single semi-finished insulation box component and the clamping plate assembly is as follows:

[0024] Using the top plywood as the upper reference surface for positioning and the side of the bottom plywood as the side reference surface for clamping and positioning, the tooling is used to press the secondary strips and secondary clamps of multiple clamping plate assemblies. The tooling includes an upper reference mechanism and a box-up clamping mechanism, a box-side clamping mechanism, a strip-down pressing mechanism, and a clamp-in pressing mechanism installed on the upper reference mechanism. The box-up clamping mechanism positions the assembled insulation box semi-finished product and the upper reference mechanism. The box-side clamping mechanism attaches the clamping plate assembly to the insulation box semi-finished product. The strip-down pressing mechanism attaches the secondary strip to the bottom plywood. The clamp-in pressing mechanism attaches the secondary strip to the reinforced polyurethane board.

[0025] Alternatively, the top plywood can be used as the lower reference surface for positioning, and the side of the bottom plywood can be used as the side reference surface for clamping and positioning. The tooling is used to press the secondary strips and secondary clamps of multiple clamping plate assemblies. The tooling includes a lower reference mechanism and a box-down clamping mechanism, a box-side clamping mechanism, a strip-down pressing mechanism, and a clamp-in pressing mechanism installed on the lower reference mechanism. The box-down clamping mechanism positions the assembled insulation box single semi-finished product and the lower reference mechanism. The box-side clamping mechanism attaches the clamping plate assembly to the insulation box single semi-finished product. The strip-down pressing mechanism attaches the secondary strip to the bottom plywood. The clamp-in pressing mechanism attaches the secondary strip to the reinforced polyurethane board.

[0026] Furthermore, regarding the main insulation box, the positioning and clamping process of the single semi-finished insulation box piece and the wedge block is as follows:

[0027] The top plywood is used as the upper reference surface for positioning, and the side of the bottom plywood is used as the side reference surface for clamping and positioning. Multiple wedges are clamped using a tooling, which includes an upper reference mechanism and a box-side clamping mechanism, a box-up clamping mechanism, a wedge-down clamping mechanism, and a wedge-inward clamping mechanism installed on the upper reference mechanism. The box-up clamping mechanism positions the assembled insulation box semi-finished product with the upper reference mechanism, the box-side clamping mechanism attaches the wedge to the insulation box semi-finished product, the wedge-down clamping mechanism attaches the wedge to the bottom plywood, and the wedge-inward clamping mechanism attaches the wedge to the reinforced polyurethane board.

[0028] Alternatively, the bottom plywood can be used as the upper reference surface for positioning, and the side of the bottom plywood can be used as the side reference surface for clamping and positioning. Multiple wedges are clamped using a tooling, which includes a lower reference mechanism and a box side clamping mechanism, a box downward clamping mechanism, a wedge downward pressing mechanism, and a wedge inward pressing mechanism installed on the lower reference mechanism. The box downward clamping mechanism positions the assembled insulation box single semi-finished product with the lower reference mechanism, the box side clamping mechanism attaches the wedge to the insulation box single semi-finished product, the wedge downward pressing mechanism attaches the wedge to the bottom plywood, and the wedge inward pressing mechanism attaches the wedge to the reinforced polyurethane board. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0030] Figure 1 The attached figure is a schematic diagram of the structure of the secondary insulation box provided by the present invention;

[0031] Figure 2 The attached figure is a schematic diagram of the structure of the main layer insulation box provided by the present invention;

[0032] Figure 3 The attached figure is an exploded view of the insulation box large plate unit provided by the present invention;

[0033] Figure 4 The attached figure is a schematic diagram of the structure of the semi-finished single-piece large board provided by the present invention being cut into multiple insulating box single-piece small boards;

[0034] Figure 5 The attached figure is a structural schematic diagram of a single semi-finished insulating box provided by the present invention;

[0035] Figure 6 The attached image is... Figure 5 A magnified structural diagram of part A in the middle;

[0036] Figure 7 The attached figure is a structural schematic diagram of the U-shaped component provided by the present invention;

[0037] Figure 8 The attached figure is a schematic diagram of the J-type component provided by the present invention;

[0038] Figure 9 The attached figure is a structural schematic diagram of the L-shaped component provided by the present invention;

[0039] Figure 10 The attached figure is a schematic diagram of the wedge block provided by the present invention. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] like Figure 1-10 As shown in the figure, an embodiment of the present invention discloses a method for manufacturing a Super+ type insulation box. The insulation box includes a main layer insulation box and a secondary layer insulation box, and includes the following steps:

[0042] 1) Apply adhesive to the bottom plywood 11 and the reinforcing polyurethane board 12. After applying the adhesive, the board is transferred to the assembly station. The automatic assembly machine moves the glued reinforcing polyurethane board 12 and assembles it onto the glued bottom plywood 11. Then, the automatic assembly machine assembles the un-adhesive top plywood 13 onto the reinforcing polyurethane board 12 to form the insulation box large panel unit 1.

[0043] 2) Stack multiple insulation box large plate units 1 sequentially. After reaching the set number of stacking layers, install the top pressure plate on the anti-drip adhesive board of the last layer of insulation box large plate unit 1. Press the plate into the press and then perform aging and destacking processes to form a glued single large plate. Sand the glued single large plate with equal thickness to control the overall thickness accuracy of ±0.3mm, forming a semi-finished single large plate.

[0044] 3) After being cut, the semi-finished single large board is formed into multiple insulation box single small boards 2. Each insulation box single small board 2 is precision machined by CNC machine tool to form an insulation box single semi-finished product 3.

[0045] 4) For the secondary insulation box, glue is applied to the mating positions of the insulation box semi-finished product 3 and the clamping plate assembly 4 of the secondary insulation box, and then the clamping plate assembly 4 and the insulation box semi-finished product 3 are assembled together; for the main insulation box, glue is applied to the mating positions of the insulation box semi-finished product 3 and the wedge block 5 of the main insulation box, and then the wedge block 5 and the insulation box semi-finished product 3 are assembled; wherein, the above glue application can be automatic glue application (such as robot or other automatic equipment) or manual glue application, and the above assembly process can be automatic assembly or manual assembly;

[0046] 5) For the secondary insulation box, the semi-finished insulation box piece 3 and the clamping plate assembly 4 of the secondary insulation box are positioned and clamped to ensure that the adhesive surface on the clamping plate assembly 4 is tightly attached to the semi-finished insulation box piece 3, with a fitting gap ≤0.1mm, and to ensure that this fitting gap does not change during the subsequent nailing process; for the primary insulation box, the semi-finished insulation box piece 3 and the wedge block 5 of the primary insulation box are positioned and clamped to ensure that the adhesive surface on the wedge block 5 is tightly attached to the semi-finished insulation box piece 3, with a fitting gap ≤0.1mm, and to ensure that this fitting gap does not change during the subsequent nailing process;

[0047] 6) For the secondary insulation box, nails are driven into the joint between the bottom plywood 11 and the clamping plate assembly 4 to achieve a reliable connection between the two; for the main insulation box, nails are driven into the joint between the bottom plywood 11 and the wedge block 5 to achieve a reliable connection between the two.

[0048] This invention addresses the structural characteristics of Super+ type insulation boxes by proposing an integrated manufacturing method for a full range of box types, covering both the main insulation box and the secondary insulation box. This method solves the problems of existing technologies, such as high requirements for the processing dimensions of parts, complex processes, high manufacturing costs of auxiliary tooling, high logistics and turnover costs in the production process, and limited production efficiency. The invention features a simple process, stable quality, reliable technology, and high production efficiency.

[0049] To further optimize the technical solution of the present invention, during the stacking process in step 2), anti-drip adhesive sheets or films are laid between each insulation box large board unit 1 to prevent glue from dripping and contaminating other boards.

[0050] Specifically, in step 3), during the CNC machine tool finishing of the single semi-finished insulation box, after the outer dimensions are finished to the required dimensions of the final product, a groove is machined at the four corners using a high-speed milling method to match the wedge block 5 of the main insulation box, or a groove is machined to match the secondary clamping plate 4 of the secondary insulation box. During this process, the high-speed milling tool processes from top to bottom to the position tangent to the bottom plywood 11, thereby forming a process boss 6 between the bottom plywood 11 and the reinforced polyurethane board 12. This ensures the critical assembly dimensions, efficient, stable and controllable precision machining, and avoids damage to the bottom plywood 11.

[0051] Specifically, in step 4), the method for manufacturing the clamping plate assembly 4 is as follows: glue is applied between the secondary strip 41 and the secondary clamping plate 42, and then the clamping plate assembly 4 is assembled on the fixture. By controlling the dimensional accuracy of the clamping plate assembly 4, nails are driven into the set position to form the clamping plate assembly 4.

[0052] Specifically, the clamping plate assembly 4 is a U-shaped assembly, a J-shaped assembly, or an L-shaped assembly. The dimensional accuracy of the U-shaped assembly is the parallelism and gap between the two secondary clamping plates 42, as well as the perpendicularity and misalignment between the two secondary clamping plates 42 and the secondary strip 41, so that the mating dimensions between the secondary clamping plates 42 and the groove are controlled within +0.1 to +0.5 mm. The dimensional accuracy of the J-shaped assembly or L-shaped assembly is the perpendicularity and misalignment between the secondary clamping plates 42 and the secondary strip 41.

[0053] Specifically, for the secondary insulation box, a notch 421 is machined on the secondary clamping plate 42 at the position where it intersects with the bottom plywood 11 and the reinforced polyurethane board 12 to avoid the process boss 6; for the main insulation box, a notch 51 is machined on the wedge block 5 at the position where it intersects with the bottom plywood 11 and the reinforced polyurethane board 12 to avoid the process boss 6. The gap between the notch and the process boss 6 is controlled within 0.5-1mm to ensure that the secondary clamping plate 42, the secondary strip plate 41, and the wedge block 5 meet the overall assembly accuracy and quality requirements during assembly.

[0054] Of course, the machining of the missing corner of the avoidance process boss 6 can be carried out in the state of the secondary clamping plate 42 part before the clamping plate assembly 4 of the prefabricated SUPER+ secondary box, or the secondary clamping plate 42 can be machined in the assembly state after becoming the clamping plate assembly 4 of the SUPER+ secondary box.

[0055] Specifically, for the secondary insulation box, the positioning and clamping process of the single semi-finished product 3 of the insulation box and the clamping plate assembly 4 is as follows:

[0056] Using the top plywood 13 as the upper reference surface for positioning and the side of the bottom plywood 11 as the side reference surface for clamping and positioning, the tooling is used to press the secondary strips 41 and secondary clamps 42 of multiple clamping plate assemblies 4. The tooling includes an upper reference mechanism and a box-up clamping mechanism, a box-side clamping mechanism, a strip-down pressing mechanism, and a clamp-in pressing mechanism installed on the upper reference mechanism. The box-up clamping mechanism positions the assembled insulation box single-piece semi-finished product 3 and the upper reference mechanism. The box-side clamping mechanism attaches the clamping plate assembly 4 to the insulation box single-piece semi-finished product 3. The strip-down pressing mechanism attaches the secondary strip 41 to the bottom plywood 11. The clamp-in pressing mechanism attaches the secondary strip 41 to the reinforced polyurethane board 12.

[0057] Alternatively, the top plywood 13 can be used as the lower reference surface for positioning, and the side of the bottom plywood 11 can be used as the side reference surface for clamping and positioning. The tooling is used to press the secondary strips 41 and secondary clamps 42 of the multiple clamping plate assemblies 4. The tooling includes a lower reference mechanism and a box-down clamping mechanism, a box-side clamping mechanism, a strip-down pressing mechanism, and a clamp-in pressing mechanism installed on the lower reference mechanism. The box-down clamping mechanism reliably positions the assembled insulation box single-piece semi-finished product 3 and the lower reference mechanism. The box-side clamping mechanism attaches the clamping plate assembly 4 to the insulation box single-piece semi-finished product 3. The strip-down pressing mechanism attaches the secondary strip 41 to the bottom plywood 11. The clamp-in pressing mechanism attaches the secondary strip 41 to the reinforced polyurethane board 12.

[0058] It is understandable that, in the above process, the sequence of action of the downward pressing mechanism of the strip and the inward pressing mechanism of the clamp can be preset by the program according to the structure of each box type and the form of the clamp assembly (U type, J type or L type).

[0059] Specifically, for the main insulation box, the positioning and clamping process of the single semi-finished product 3 of the insulation box and the wedge block 5 is as follows:

[0060] The top plywood 13 is used as the upper reference surface for positioning, and the side of the bottom plywood 11 is used as the side reference surface for clamping and positioning. Multiple wedges 5 are clamped using a tooling, which includes an upper reference mechanism and a box side clamping mechanism, a box upward clamping mechanism, a wedge downward clamping mechanism, and a wedge inward clamping mechanism installed on the upper reference mechanism. The box upward clamping mechanism positions the assembled insulation box single-piece semi-finished product 3 with the upper reference mechanism. The box side clamping mechanism attaches the wedges 5 to the insulation box single-piece semi-finished product 3. The wedge downward clamping mechanism attaches the wedges 5 to the bottom plywood 11. The wedge inward clamping mechanism attaches the wedges 5 to the reinforced polyurethane board 12.

[0061] Alternatively, the bottom plywood 11 can be used as the upper reference surface for positioning, and the side of the bottom plywood 11 can be used as the side reference surface for clamping and positioning. Multiple wedges 5 are clamped using a tooling, which includes a lower reference mechanism and a box side clamping mechanism, a box downward clamping mechanism, a wedge downward pressing mechanism, and a wedge inward pressing mechanism installed on the lower reference mechanism. The box downward clamping mechanism positions the assembled insulation box single-piece semi-finished product 3 with the lower reference mechanism. The box side clamping mechanism attaches the wedges 5 to the insulation box single-piece semi-finished product 3. The wedge downward pressing mechanism attaches the wedges 5 to the bottom plywood 11. The wedge inward pressing mechanism attaches the wedges 5 to the reinforced polyurethane board 12.

[0062] It is understandable that the sequence of action of the wedge pressing mechanism and the wedge pressing mechanism in the above process is preset by the program according to the structure and installation position of each box type.

[0063] Of course, regardless of whether the upper plane positioning mode or the lower plane positioning mode is used, either a double-sided clamping and positioning layout or a single-sided clamping and positioning layout can be adopted. A double-sided clamping and positioning layout means that the clamping and positioning side reference surface is equipped with a corresponding box-type positioning clamping mechanism. A single-sided clamping and positioning layout means that the clamping and positioning side reference surface is set as a fixed positioning surface, which does not have a corresponding box-type positioning clamping mechanism; it only serves as a positioning reference.

[0064] Specifically, a specialized nail gun is used for nailing, which can be done manually or automatically. The position drive device for the specialized nail gun in automatic nailing can be a linear multi-dimensional robotic arm or a multi-axis industrial robot. The posture of the specialized nail gun during nailing can be any position and orientation in space. The bottom surface of the plywood, serving as the nailing reference surface, can be at any angle to the horizontal plane and perpendicular to the nailing axis of the nail gun. In special cases, to accommodate differences in different batches of specialized nails, the angle between the nail gun axis and the nailing reference surface can be finely adjusted. The posture and angle adjustment of the nailing reference surface can be achieved using a linear multi-dimensional robotic arm, a multi-axis industrial robot, or any form of posture and angle adjustment device such as a positioner.

[0065] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0066] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for manufacturing a Super+ type insulation box, the insulation box comprising a main insulation box and a secondary insulation box, characterized in that, The following steps are involved: 1) Apply adhesive to the bottom plywood and the reinforcing polyurethane board. After applying the adhesive, the board is transferred to the assembly station. The automatic assembly machine moves the glued reinforcing polyurethane board and assembles it onto the glued bottom plywood. Then, the automatic assembly machine assembles the un-glued top plywood onto the reinforcing polyurethane board to form the large insulation box unit. 2) Stack multiple insulation box large plate units sequentially until the set number of stacking layers is reached. Then, install the top pressure plate on the anti-drip adhesive board of the last layer of insulation box large plate unit. Press the plate into the press and then perform aging and destacking processes to form a glued single large plate. Sand the glued single large plate with equal thickness to form a semi-finished single large plate. 3) After being cut, the semi-finished single large board is divided into multiple insulation box single small boards. Each insulation box single small board is precision machined by CNC machine tool to form an insulation box single semi-finished product; 4) For the secondary insulation box, apply glue to the mating positions of the individual semi-finished insulation box piece and the clamping plate assembly of the secondary insulation box, and then assemble the clamping plate assembly and the individual semi-finished insulation box piece together; for the primary insulation box, apply glue to the mating positions of the individual semi-finished insulation box piece and the wedge block of the primary insulation box, and then assemble the wedge block and the individual semi-finished insulation box piece together. 5) For the secondary insulation box, position and clamp the individual semi-finished insulation box pieces and the clamping plate assembly of the secondary insulation box; for the primary insulation box, position and clamp the individual semi-finished insulation box pieces and the wedge blocks of the primary insulation box. 6) For the secondary insulation box, nail the joint between the bottom plywood and the clamping plate assembly; For the main insulation box, nails are driven into the joint between the bottom plywood and the wedge.

2. The method for manufacturing a Super+ type insulation box according to claim 1, characterized in that, During the stacking process in step 2), anti-drip adhesive sheets or films are laid between each insulation box large panel unit.

3. The method for manufacturing a Super+ type insulation box according to claim 1, characterized in that, In step 3), during the CNC machine tool finishing of the single semi-finished insulation box, after the outer dimensions are finished to the required dimensions of the final product, a groove is machined at the four corners using a high-speed milling method to match the wedge block of the main insulation box, or a groove is machined to match the secondary clamping plate of the secondary insulation box. During this process, the high-speed milling tool processes from top to bottom to the position tangent to the bottom plywood, thereby forming a process boss between the bottom plywood and the reinforced polyurethane board.

4. The method for manufacturing a Super+ type insulation box according to claim 3, characterized in that, In step 4), the method for manufacturing the clamping plate assembly is as follows: apply glue between the secondary strip and the secondary clamping plate, and then, on the clamping plate assembly assembly fixture, nails are driven into the set positions by controlling the dimensional accuracy of the clamping plate assembly to form the clamping plate assembly.

5. The method for manufacturing a Super+ type insulation box according to claim 4, characterized in that, The clamping plate assembly can be a U-shaped assembly, a J-shaped assembly, or an L-shaped assembly. The dimensional accuracy of the U-shaped assembly includes the parallelism and gap dimensions between the two secondary clamping plates, as well as the perpendicularity and misalignment dimensions between the two secondary clamping plates and the secondary strip, so that the fit dimensions between the secondary clamping plates and the groove are controlled within +0.1 to +0.5 mm. The dimensional accuracy of the J-shaped assembly or L-shaped assembly includes the perpendicularity and misalignment dimensions between the secondary clamping plates and the secondary strip.

6. The method for manufacturing a Super+ type insulation box according to claim 3, characterized in that, For the secondary insulation box, a notch is machined on the secondary plywood at the intersection with the bottom plywood and the reinforced polyurethane board to avoid the process boss; for the main insulation box, a notch is machined on the wedge at the intersection with the bottom plywood and the reinforced polyurethane board to avoid the process boss.

7. The method for manufacturing a Super+ type insulation box according to claim 5, characterized in that, For the secondary insulation box, the positioning and clamping process of the single semi-finished product of the insulation box and the clamping plate assembly is as follows: Using the top plywood as the upper reference surface for positioning and the side of the bottom plywood as the side reference surface for clamping and positioning, the tooling is used to press the secondary strips and secondary clamps of multiple clamping plate assemblies. The tooling includes an upper reference mechanism and a box-up clamping mechanism, a box-side clamping mechanism, a strip-down pressing mechanism, and a clamp-in pressing mechanism installed on the upper reference mechanism. The box-up clamping mechanism positions the assembled insulation box semi-finished product and the upper reference mechanism. The box-side clamping mechanism attaches the clamping plate assembly to the insulation box semi-finished product. The strip-down pressing mechanism attaches the secondary strip to the bottom plywood. The clamp-in pressing mechanism attaches the secondary strip to the reinforced polyurethane board. Alternatively, the top plywood can be used as the lower reference surface for positioning, and the side of the bottom plywood can be used as the side reference surface for clamping and positioning. The tooling is used to press the secondary strips and secondary clamps of multiple clamping plate assemblies. The tooling includes a lower reference mechanism and a box-down clamping mechanism, a box-side clamping mechanism, a strip-down pressing mechanism, and a clamp-in pressing mechanism installed on the lower reference mechanism. The box-down clamping mechanism positions the assembled insulation box single semi-finished product and the lower reference mechanism. The box-side clamping mechanism attaches the clamping plate assembly to the insulation box single semi-finished product. The strip-down pressing mechanism attaches the secondary strip to the bottom plywood. The clamp-in pressing mechanism attaches the secondary strip to the reinforced polyurethane board.

8. A method for manufacturing a Super+ type insulation box according to claim 5, characterized in that, For the main insulation box, the positioning and clamping process of the single semi-finished product of the insulation box and the wedge is as follows: The top plywood is used as the upper reference surface for positioning, and the side of the bottom plywood is used as the side reference surface for clamping and positioning. Multiple wedges are clamped using a tooling, which includes an upper reference mechanism and a box-side clamping mechanism, a box-up clamping mechanism, a wedge-down clamping mechanism, and a wedge-inward clamping mechanism installed on the upper reference mechanism. The box-up clamping mechanism positions the assembled insulation box semi-finished product with the upper reference mechanism, the box-side clamping mechanism attaches the wedge to the insulation box semi-finished product, the wedge-down clamping mechanism attaches the wedge to the bottom plywood, and the wedge-inward clamping mechanism attaches the wedge to the reinforced polyurethane board. Alternatively, the bottom plywood can be used as the upper reference surface for positioning, and the side of the bottom plywood can be used as the side reference surface for clamping and positioning. Multiple wedges are clamped using a tooling, which includes a lower reference mechanism and a box side clamping mechanism, a box downward clamping mechanism, a wedge downward pressing mechanism, and a wedge inward pressing mechanism installed on the lower reference mechanism. The box downward clamping mechanism positions the assembled insulation box single semi-finished product with the lower reference mechanism, the box side clamping mechanism attaches the wedge to the insulation box single semi-finished product, the wedge downward pressing mechanism attaches the wedge to the bottom plywood, and the wedge inward pressing mechanism attaches the wedge to the reinforced polyurethane board.

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