Honeycomb structure assembly tooling and honeycomb structure brazing process

Abstract

The present invention relates to the technical field of honeycomb structure assembly, and provides a honeycomb structure assembly tool and a honeycomb structure brazing process, wherein the honeycomb structure assembly tool comprises a frame structure, a lower layer component arranged on the frame structure, an upper layer component and a laser spot welding device, wherein the upper layer component and the lower layer component are arranged at intervals, and the upper layer component and the lower layer component are used in combination, and the laser spot welding device is used for spot welding corrugated sheets; the lower layer component comprises a lower plate slidably connected to the frame structure, the upper layer component comprises an upper plate adapted to the lower plate, an adsorption mechanism arranged on the upper plate and used to adsorb the corrugated sheets, and a vertical moving mechanism connected to the upper plate and driving the upper plate to move toward or away from the lower plate, and corrugated grooves for accommodating the corrugated sheets are provided on both the upper plate and the lower plate. The honeycomb structure assembly tool is used to stack the corrugated sheets to prevent them from spreading, so that in the assembly preparation stage before brazing the honeycomb, the stacking and fixing of the corrugated sheets is simple and convenient, and the occurrence of misaligned teeth is effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of honeycomb structure assembly, and in particular to a honeycomb structure assembly tool and a honeycomb structure brazing process using the honeycomb structure assembly tool. Background Art

[0002] At present, there are two main ways to connect honeycomb panels of honeycomb products: gluing and brazing. The honeycomb finished products produced by splicing honeycomb panels have much better mechanical properties than those made by gluing. Therefore, brazing can effectively improve the performance of high-strength honeycomb products.

[0003] The production steps of brazed honeycomb can be simply described as: stainless steel foil or aluminum foil is made into corrugated sheets through special equipment; brazing material is coated on the corrugated sheets; the corrugated sheets are stacked into a honeycomb shape and fixed; the stacked corrugated sheets are placed in a brazing furnace and brazed into a honeycomb.

[0004] At present, the production of brazed honeycombs has the following difficulties: the stacking position of the corrugated sheets is difficult to determine due to their own structural reasons, and the tooth misalignment problem is very likely to occur, especially when the side length of the corrugated sheets is small, the stacking is more difficult; when the corrugated sheets are stacked and before being put into the brazing furnace for brazing, the corrugated sheets are in a loose state, without unlimited fixing devices, and are very easy to fall apart. Summary of the invention

[0005] One object of the present invention is to provide a honeycomb structure assembly tool, which aims to solve the problems of difficulty in stacking corrugated sheets, easy tooth misalignment, and easy disintegration when placed in a brazing furnace when producing honeycombs using existing technologies.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] In the first aspect, the present application provides a honeycomb structure assembly tool for stacking and spot welding corrugated sheets, the honeycomb structure assembly tool includes a frame structure, a lower layer component arranged on the frame structure, an upper layer component and a laser spot welding device, the upper layer component and the lower layer component are arranged at an interval, and the upper layer component and the lower layer component are used in combination, the laser spot welding device is arranged on the same side of the lower layer component and the upper layer component and is used for spot welding the corrugated sheets; the lower layer component includes a lower plate slidably connected to the frame structure, the upper layer component includes an upper plate adapted to the lower plate, an adsorption mechanism arranged on the upper plate and used for adsorbing the corrugated sheets, and a vertical moving mechanism connected to the upper plate and driving the upper plate to move toward or away from the lower plate, and both the upper plate and the lower plate are provided with corrugated grooves for accommodating the corrugated sheets.

[0008] Beneficial effects of the present invention: the honeycomb structure assembly tool provided by the present invention utilizes the lower plate to place a layer of corrugated sheets, and utilizes the adsorption mechanism to adsorb a layer of corrugated sheets on the upper plate at the same time, and drives the upper plate to move toward the lower plate with the corrugated sheets through the vertical moving mechanism, so that a layer of corrugated sheets adsorbed on the upper plate is superimposed on the corrugated sheets placed on the lower plate, that is, the upper plate can be controlled to move toward or away from the lower plate by controlling the vertical moving mechanism, so that the superposition operation of the corrugated sheets is easier; and the through hole controls the lower plate to slide on the frame structure so that the corrugated sheets on the lower plate are aligned and superimposed with the corrugated sheets on the upper plate, effectively avoiding the problem of misaligned teeth; and a laser spot welding device is used to weld two adjacent layers of superimposed corrugated sheets to fix them to prevent them from spreading, so that in the assembly preparation stage before brazing the honeycomb, the superposition and fixation of the corrugated sheets is easy and effectively avoids the occurrence of misaligned teeth.

[0009] In one embodiment, the frame structure includes a base, columns erected on the base and beams installed on the columns, the lower plate is slidably installed on the base, the vertical moving mechanism is installed on the columns, and the laser spot welding device is installed on the beam.

[0010] By adopting the above-mentioned technical solution, the lower plate is slidably installed on the base, and the vertical moving mechanism is installed on the column, so that the vertical moving mechanism can control the upper plate to reciprocate along the direction of the column to achieve the action of moving toward or away from the lower plate, and the laser spot welding device can move on the crossbeam to achieve spot welding and fixation of the corrugated sheet superimposed between the upper plate and the lower plate.

[0011] In one embodiment, the laser spot welding device includes a sliding member slidably connected to the beam, a first lifting mechanism installed on the sliding member, and a spot welding body installed on the lifting end of the first lifting mechanism, and the sliding direction of the sliding member is consistent with the sliding direction of the lower plate.

[0012] By adopting the above-mentioned technical solution, the spot welding body can slide on the cross beam through the sliding part, and at the same time be lifted and lowered by the drive of the first lifting mechanism, so that the spot welding body extends from the cross beam above the upper plate to the bottom to weld the corrugated sheet stacked between the upper plate and the lower plate to fix it and prevent it from scattering.

[0013] In one embodiment, the frame structure includes a base and columns and vertical beams mounted on the base, the lower plate is slidably mounted on the base, the vertical moving mechanism is mounted on the columns, and the laser spot welding device is mounted on the vertical beams.

[0014] By adopting the above-mentioned technical solution, the lower plate is slidably installed on the base, and the vertical moving mechanism is installed on the column, so that the vertical moving mechanism can control the upper plate to reciprocate along the direction of the column to achieve the action of moving toward or away from the lower plate, and the laser spot welding device moves on the vertical beam to achieve spot welding and fixation of the corrugated sheets superimposed between the upper plate and the lower plate.

[0015] In one embodiment, the laser spot welding device includes a second lifting mechanism installed on the vertical beam, a horizontal moving mechanism installed on the lifting end of the second lifting mechanism, and a spot welding body installed on the moving end of the horizontal moving mechanism, and the moving direction of the horizontal moving mechanism is consistent with the sliding direction of the lower plate.

[0016] By adopting the above-mentioned technical solution, the spot welding body can be lifted and lowered along the direction of the vertical beam by the second lifting mechanism, and at the same time moved horizontally by the horizontal moving mechanism, so that the spot welding body can weld the corrugated sheets stacked in the middle on one side of the upper plate and the lower plate to fix them and prevent them from scattering.

[0017] In one embodiment, the vertical moving mechanism includes a ball screw mounted on a column, and the upper plate is mounted on the moving end of the ball screw; or, the vertical moving mechanism includes two ball screws arranged in parallel, and a moving block mounted between the moving ends of the two ball screws, each ball screw is arranged on a corresponding column, and the upper plate is mounted on the moving block.

[0018] By adopting the above technical solution, the upper plate can be driven by a ball screw to achieve lifting and lowering, or the upper plate can be installed by two synchronously running ball screws carrying moving blocks, so that the upper plate runs more smoothly and the movement of the stacked corrugated sheets is also smoother.

[0019] In one embodiment, the lower assembly further comprises a driving member disposed on the base, wherein an output shaft of the driving member is connected to the lower plate and drives the lower plate to slide on the base.

[0020] By adopting the above technical solution, a driving member is arranged on the base, and the driving member is used to control the sliding of the lower plate on the base, so that the lower plate drives the corrugated sheet to align and overlap with the corrugated sheet adsorbed on the upper plate, thereby avoiding the problem of misaligned teeth.

[0021] In one embodiment, the base is provided with a limiting structure for limiting the position of the lower plate.

[0022] By adopting the above technical solution, a limiting structure is provided on the base to limit the sliding position of the lower plate, thereby preventing the lower plate from moving excessively.

[0023] In one embodiment, the laser spot welding device can be detachably mounted on the frame structure, and the adsorption mechanism can be detachably mounted on the upper plate.

[0024] By adopting the above technical solution, the laser spot welding device and the adsorption mechanism are both detachable structures. Therefore, when the honeycomb needs to be brazed, the laser spot welding device and the adsorption mechanism, which are vulnerable parts, can be removed, and then the multi-layered corrugated sheets fixed by the honeycomb structure assembly tooling can be directly put into the brazing furnace for brazing, thereby avoiding the problem of damage or dispersion caused by direct handling of the multi-layered corrugated sheets.

[0025] In a second aspect, the present application further provides a honeycomb structure brazing process, the honeycomb structure brazing process adopts the honeycomb structure assembly tool as described above, and the honeycomb structure brazing process comprises the following steps:

[0026] S1. Pressing stainless steel foil or aluminum foil into corrugated sheets;

[0027] S2, coating the corrugated sheet with solder;

[0028] S3, stacking and spot welding the corrugated sheets using a honeycomb structure assembly tool to form a honeycomb structure;

[0029] S4, placing the honeycomb structure assembly tool and the honeycomb structure together into a brazing furnace for brazing, and taking them out after the brazing is completed.

[0030] Beneficial effects of the present invention: The honeycomb structure brazing process provided by the present invention assembles and fixes the corrugated sheets by stacking them using the above-mentioned honeycomb structure assembly tooling, and after the assembly is completed, the multi-layer corrugated sheets fixed by the honeycomb structure assembly tooling can be directly put into the brazing furnace to achieve brazing, thereby avoiding the corrugated sheets from spreading out. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A schematic diagram of the structure of a honeycomb structure assembly tool provided by an embodiment of the present invention;

[0033] Figure 2 A schematic diagram of the process flow of the honeycomb structure brazing process provided in an embodiment of the present invention.

[0034] Among them, the reference numerals in the figure are:

[0035] 100. Honeycomb structure assembly tool; 10. Frame structure; 11. Base; 12. Column; 13. Crossbeam; 20. Lower assembly; 21. Lower plate; 22. Driving member; 23. Limiting structure; 30. Upper assembly; 31. Upper plate; 32. Vertical moving mechanism; 40. Laser spot welding device; 41. Sliding member; 42. First lifting mechanism; 43. Spot welding body. DETAILED DESCRIPTION

[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0037] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] There are two main ways to connect the honeycomb panels of honeycomb products: gluing and brazing. The mechanical properties of honeycomb products made by brazing are far superior to those of gluing. The production steps of brazed honeycombs can be simply described as: stainless steel foil or aluminum foil is made into corrugated sheets through special equipment; the corrugated sheets are coated with brazing material; the corrugated sheets are stacked into a honeycomb shape and fixed; the stacked corrugated sheets are placed in a brazing furnace and brazed into a honeycomb. However, in the process of stacking the corrugated sheets into a honeycomb shape, the stacking position is difficult to determine due to the structure of the corrugated sheets themselves, and the problem of misalignment is very likely to occur, especially when the side length of the corrugated sheets is small, the stacking is more difficult.

[0041] Please refer to Figure 1 In view of the above technical problems, in the first aspect, the present application provides a honeycomb structure assembly tool 100 for stacking and spot welding corrugated sheets. The honeycomb structure assembly tool 100 includes a frame structure 10, a lower layer component 20 arranged on the frame structure 10, an upper layer component 30 and a laser spot welding device 40, the upper layer component 30 and the lower layer component 20 are arranged at intervals, and the upper layer component and the lower layer component 20 are used in conjunction with each other, the laser spot welding device 40 is arranged on the same side of the lower layer component 20 and the upper layer component 30 and is used for spot welding the corrugated sheets; the lower layer component 20 includes a lower plate 21 slidably connected to the frame structure 10, the upper layer component 30 includes an upper plate 31 adapted to the lower plate 21, an adsorption mechanism arranged on the upper plate 31 and used for adsorbing the corrugated sheets, and a vertical moving mechanism 32 connected to the upper plate 31 and driving the upper plate 31 to move toward or away from the lower plate 21, and the upper plate 31 and the lower plate 21 are both provided with corrugated grooves for accommodating the corrugated sheets.

[0042] When in use, first place a layer of corrugated sheet on the lower plate 21, and at the same time, the upper plate 31 also absorbs a layer of corrugated sheet through the adsorption mechanism. The upper plate 31 is driven by the vertical moving mechanism 32 to move toward the lower plate 21 with the corrugated sheet, so that the layer of corrugated sheet adsorbed on the upper plate 31 is superimposed with the corrugated sheet placed on the lower plate 21, and at the same time, the position of the lower plate 21 on the frame structure 10 is adjusted by sliding, so that the peak part of the corrugated groove on the lower plate 21 is opposite to the trough part of the corrugated groove on the upper plate 31, so that the peak part of one layer of corrugated sheet between the corrugated sheet placed on the corrugated groove on the lower plate 21 and the corrugated sheet adsorbed on the corrugated groove on the upper plate 31 is opposite to the peak part of another layer of corrugated sheet, so that a honeycomb structure is formed between the two adjacent layers of corrugated sheets, and then the two layers of corrugated sheets are welded by the laser spot welding device 40 to achieve fixation. After the first stacking and installation of the corrugated sheets is completed, the position of the lower plate 21 relative to the upper plate 31 is adjusted so that the peak part of the corrugated groove on the lower plate 21 is opposite to the peak part of the corrugated groove on the upper plate 31, so that the honeycomb structure of the two layers of corrugated sheets placed on the corrugated groove on the lower plate 21 and the corrugated sheets adsorbed on the corrugated groove on the upper plate 31, the peak part of the top of the honeycomb structure is opposite to the trough part of the corrugated sheet on the upper plate 31, so that a layer of corrugated sheet is stacked on the honeycomb structure formed between the two layers of corrugated sheets to form a honeycomb structure composed of three layers of corrugated sheets, and then the third layer of corrugated sheet is welded by the laser spot welding device 40 to achieve fixation. Repeat the above actions to continuously stack the corrugated sheets until the required height is stacked.

[0043] It is understandable that the above-mentioned adsorption mechanism can adopt a vacuum suction cup, which can adsorb the corrugated sheet and keep it on the upper plate 31. Among them, the structure of the corrugated grooves opened on the upper plate 31 and the lower plate 21 should be consistent with the corrugated sheet, so that the corrugated sheet can fit the corrugated grooves of the upper plate 31 and the lower plate 21, and the position can be more accurate when superimposed. The frame structure 10 is slidably connected to the lower plate 21, and the lower plate 21 can slide on the frame structure 10. Specifically, the sliding of the lower plate 21 can be manually controlled, or, in order to make the sliding distance of the lower plate 21 more accurate, a driving mechanism can be set to control the sliding of the lower plate 21 through the driving mechanism. Compared with manual control, more precise movement control can be achieved, for example, a cylinder, a ball screw, etc. are used as the driving mechanism.

[0044] The honeycomb structure assembly tool 100 in this embodiment can control the upper plate 31 to move toward or away from the lower plate 21 by controlling the vertical moving mechanism 32, so that the stacking operation of the corrugated sheets is easier; and the through hole controls the lower plate 21 to slide on the frame structure 10 so that the corrugated sheets on the lower plate 21 are aligned and stacked with the corrugated sheets on the upper plate 31, effectively avoiding the problem of misaligned teeth; the laser spot welding device 40 is used to weld the two adjacent layers of stacked corrugated sheets to fix them to prevent them from spreading, so that in the assembly preparation stage before brazing the honeycomb, the stacking and fixing operation of the corrugated sheets is simple and effectively avoids the occurrence of misaligned teeth. After the stacking and fixing operation of the corrugated sheets before brazing is completed by using the honeycomb structure assembly tool 100, the honeycomb structure assembly tool 100 and the stacked and fixed multi-layer corrugated sheets fixed on the honeycomb structure assembly tool 100 by clamping the upper plate 31 and the lower plate 21 can be directly put into the brazing furnace for brazing, so as to avoid the problem of damage caused by direct movement of the stacked and fixed multi-layer corrugated sheets.

[0045] Please refer to Figure 1 In one embodiment, the frame structure 10 includes a base 11, a column 12 mounted on the base 11, and a beam 13 installed on the column 12, the lower plate 21 is slidably installed on the base 11, the vertical moving mechanism 32 is installed on the column 12, and the laser spot welding device 40 is installed on the beam 13. The lower plate 21 is slidably mounted on the base 11, and the vertical moving mechanism 32 is mounted on the column 12, so that the vertical moving mechanism 32 can control the upper plate 31 to reciprocate along the direction of the column 12, that is, the upper plate 31 approaches or moves away from the lower plate 21, so that the upper plate 31 carries a layer of corrugated sheets and approaches the lower plate 21 to stack the corrugated sheets on the upper plate 31 on the corrugated sheets placed on the lower plate 21; and the sliding of the lower plate 21 on the base 11 can realize the horizontal movement of the lower plate 21 relative to the upper plate 31, that is, the lower plate 21 moves relative to the extension direction of the corrugated structure of the corrugated groove of the upper plate 31, so as to realize the position of the corrugated groove of the lower plate 21 relative to the peak structure or the trough structure of the corrugated groove of the upper plate 31. The laser spot welding device 40 is mounted on the crossbeam 13, so that the laser spot welding device 40 can extend on the crossbeam 13 and toward between the upper plate 31 and the lower plate 21, and spot weld and fix the corrugated sheets stacked between the upper plate 31 and the lower plate 21. Among them, the vertical moving mechanism 32 can adopt a cylinder, using the piston of the cylinder to push the upper plate 31 to move toward or away from the lower plate 21; or, the vertical moving mechanism 32 can also adopt a ball screw, a motor and a gear rack pair matching structure or other forms, and the specific structure of the vertical moving mechanism 32 can be customized according to actual conditions.

[0046] Please refer to Figure 1In one embodiment, the laser spot welding device 40 includes a sliding member 41 slidably connected to the crossbeam 13, a first lifting mechanism 42 installed on the sliding member 41, and a spot welding body 43 installed on the lifting end of the first lifting mechanism 42, and the sliding direction of the sliding member 41 is consistent with the sliding direction of the lower plate 21. The spot welding body 43 can slide on the crossbeam 13 through the sliding member 41, and at the same time, it is lifted and lowered by the drive of the first lifting mechanism 42, so that the spot welding body 43 extends from the crossbeam 13 above the upper plate 31 to the bottom to weld the corrugated sheet superimposed between the upper plate 31 and the lower plate 21 to fix it and prevent it from scattering. Specifically, the sliding member 41 can be a slider clamped on the crossbeam 13, and slides on the crossbeam 13 through the slider. The first lifting mechanism 42 can be a lifting cylinder, the fixed seat of the lifting cylinder is installed on the slider, and the piston of the lifting cylinder is connected to the spot welding body 43, so that the piston of the lifting cylinder can be extended and retracted to realize the control of the spot welding body 43 to move toward the position between the lower plate 21 and the upper plate 31. When the corrugated sheets are stacked by using the upper plate 31 and the lower plate 21 , the spot welding body 43 can move to the side between the upper plate 31 and the lower plate 21 to spot weld the stacked corrugated sheets at the side to fix them.

[0047] In one embodiment, the frame structure 10 includes a base 11 and columns 12 and vertical beams mounted on the base 11, the lower plate 21 is slidably mounted on the base 11, the vertical moving mechanism 32 is mounted on the columns 12, and the laser spot welding device 40 is mounted on the vertical beams. The lower plate 21 is slidably installed on the base 11, and the vertical moving mechanism 32 is installed on the column 12, so that the vertical moving mechanism 32 can control the upper plate 31 to reciprocate along the direction of the column 12, that is, the upper plate 31 approaches or moves away from the lower plate 21, so as to realize the action of the upper plate 31 carrying a layer of corrugated sheets approaching the lower plate 21 to stack the corrugated sheets on the upper plate 31 on the corrugated sheets placed on the lower plate 21; and the sliding of the lower plate 21 on the base 11 can realize the horizontal movement of the lower plate 21 relative to the upper plate 31, that is, the lower plate 21 moves in the extension direction of the corrugated structure of the corrugated groove of the upper plate 31, thereby realizing the position of the peak structure or the trough structure of the corrugated groove of the lower plate 21 relative to the corrugated groove of the upper plate 31. The laser spot welding device 40 is installed on the vertical beam, and the vertical beam is located on one side of the column 12, that is, the laser spot welding device 40 is independent of the column 12 and is installed on one side of the column 12, and spot welding is performed on the corrugated sheet stacked between the upper plate 31 and the lower plate 21 beside the upper plate 31 and the lower plate 21.

[0048] In one embodiment, the laser spot welding device 40 includes a second lifting mechanism installed on the vertical beam, a horizontal moving mechanism installed on the lifting end of the second lifting mechanism, and a spot welding body 43 installed on the moving end of the horizontal moving mechanism, and the moving direction of the horizontal moving mechanism is consistent with the sliding direction of the lower plate 21. The spot welding body 43 can be moved along the direction of the vertical beam through the second lifting mechanism, and can be moved in a direction perpendicular to the vertical beam and in the same direction as the sliding direction of the lower plate 21 through the horizontal moving mechanism. That is, the spot welding body 43 moves on the side of the lower plate 21 and the upper plate 31 through the cooperation of the second lifting mechanism and the horizontal moving mechanism, so that the spot welding body 43 can spot weld each layer of superimposed corrugated sheets to achieve fixation to prevent scattering. Among them, the second lifting mechanism can adopt a cylinder, a ball screw, etc., and the horizontal moving mechanism can adopt a linear cylinder, a ball screw, etc. The specific forms of the second lifting mechanism and the horizontal moving mechanism can be selected according to actual conditions.

[0049] Please refer to Figure 1 In one embodiment, the vertical moving mechanism 32 includes a ball screw mounted on the column 12, and the upper plate 31 is mounted on the moving end of the ball screw. By using a ball screw to control the reciprocating movement of the upper plate 31, the upper plate 31 is connected to the moving end of the ball screw, so that the upper plate 31 approaches the lower plate 21 or moves away from the lower plate 21 according to the moving end of the ball screw. Alternatively, in another implementation of this embodiment, the vertical moving mechanism 32 includes two ball screws arranged in parallel, and a moving block mounted between the moving ends of the two ball screws, the two ball screws are respectively mounted on the corresponding columns 12, and the upper plate 31 is mounted on the moving block. By installing two ball screws on the corresponding two columns 12, and the two ball screws run synchronously, the two ball screws can synchronously control the movement of the upper plate 31, so that the movement of the upper plate 31 is more stable. When the upper plate 31 carries the corrugated sheet toward the lower plate 21 for stacking, the movement of the corrugated sheet is also more stable, and the stacking process tends to be stable, so as to maintain the smooth progress of the stacking and fixing operation. At the same time, a moving block can be mounted between the moving ends of the two ball screws, and the upper plate 31 can be installed on the moving block, so that the upper plate 31 moves more smoothly.

[0050] Please refer to Figure 1In one embodiment, the lower component 20 further includes a driving member 22 disposed on the base 11, the output shaft of the driving member 22 is connected to the lower plate 21 and drives the lower plate 21 to slide on the base 11. By arranging the driving member 22 on the base 11, the driving member 22 is used to control the sliding of the lower plate 21 on the base 11, so that the lower plate 21 drives the corrugated sheet to align and overlap with the corrugated sheet adsorbed on the upper plate 31, thereby avoiding the problem of misaligned teeth. Among them, the driving member 22 can be a cylinder, and the piston of the cylinder is connected to the lower plate 21, so that the sliding of the lower plate 21 on the base 11 can be controlled by retracting the piston of the cylinder. It can be understood that in order to facilitate the installation of the cylinder and the control of the lower plate 21, a connecting block can be provided on the lower plate 21, and the piston of the cylinder is connected to the connecting block, and the lower plate 21 can be pushed by pushing the connecting block.

[0051] Please refer to Figure 1 In one embodiment, the base 11 is provided with a limiting structure 23 for limiting the position of the lower plate 21. The limiting structure 23 is provided on the base 11 to limit the sliding position of the lower plate 21 to prevent the lower plate 21 from moving excessively. Specifically, the limiting structure 23 includes a first limiting block and a second limiting block provided in the moving direction of the lower plate 21, and the first limiting block and the second limiting block are provided at opposite ends of the lower plate 21 respectively; the first limiting block is used to limit the position of the corrugated sheet with odd layers superimposed on the lower plate 21, and the second limiting block is used to limit the position of the corrugated sheet with even layers superimposed on the lower plate 21. It can be understood that when the lower plate 21 stacks an odd number of layers of corrugated sheets, for example, the first layer of corrugated sheets is stacked, it is necessary to make the peak structure of the corrugated groove of the lower plate 21 opposite to the trough structure of the corrugated groove of the upper plate 31, so that when the upper plate 31 absorbs a layer of corrugated sheets and moves to a layer of corrugated sheets placed on the lower plate 21, the peak structure and the trough structure between the two layers of corrugated sheets are opposite to form a honeycomb structure. At this time, when the lower plate 21 is moved to abut against the first limit block, the odd number of layers of corrugated sheets can be stacked. Similarly, when the lower plate 21 is stacked with an even number of layers of corrugated sheets, for example, the second layer of corrugated sheets is stacked, the peak structure of the corrugated groove of the lower plate 21 needs to be opposite to the peak structure of the corrugated groove of the upper plate 31, and the trough structure of the corrugated groove of the lower plate 21 needs to be opposite to the trough structure of the corrugated groove of the upper plate 31, so that when the upper plate 31 absorbs one layer of corrugated sheets and moves to the two layers of corrugated sheets placed on the lower plate 21, the corrugated structure of the corrugated sheets on the upper plate 31 coincides with the position of the corrugated structure of the first layer of corrugated sheets from bottom to top of the lower plate 21, so that the corrugated structure of the corrugated sheets on the upper plate 31 is staggered with the corrugated structure of the second layer of corrugated sheets from bottom to top on the lower plate 21, and when the second layer of corrugated sheets is stacked on the upper plate 31, it can form a honeycomb structure with the second layer of corrugated sheets from bottom to top on the lower plate 21. At this time, when the lower plate 21 is moved to abut against the second limit block, the even number of layers of corrugated sheets can be stacked.

[0052] Please refer to Figure 1 In one embodiment, the laser spot welding device 40 is detachably mounted on the frame structure 10, and the adsorption mechanism is detachably mounted on the upper plate 31. The laser spot welding device 40 and the adsorption mechanism are both detachable structures, so when it is necessary to braze the honeycomb, the laser spot welding device 40 and the adsorption mechanism, which are vulnerable parts, can be removed, and then the multi-layered corrugated sheets fixed by the honeycomb structure assembly tool 100 are directly put into the brazing furnace for brazing, so as to avoid the problem of damage or scattering caused by directly handling the multi-layered corrugated sheets.

[0053] Please refer to Figure 2 In a second aspect, the present application further provides a honeycomb structure brazing process, the honeycomb structure brazing process adopts the honeycomb structure assembly tool 100 as described above, and the honeycomb structure brazing process includes the following steps:

[0054] S1. Pressing stainless steel foil or aluminum foil into corrugated sheets;

[0055] S2, coating the corrugated sheet with solder;

[0056] S3, using the honeycomb structure assembly tool 100 to stack and spot weld the corrugated sheets to form a honeycomb structure;

[0057] S4, placing the honeycomb structure assembly tool 100 and the honeycomb structure together into a brazing furnace for brazing, and taking it out after the brazing is completed.

[0058] Among them, in step S3, the specific operation of stacking and spot welding the corrugated sheets using the honeycomb structure assembly tool 100 is: select the manufactured corrugated sheets and place them on the lower plate 21, the corrugated sheets have the same corrugated structure as the corrugated grooves of the lower plate 21, and the corrugated sheets can be completely fitted with the lower plate 21; adjust the upper plate 31 to a suitable height, select the manufactured corrugated sheets and place them on the upper plate 31, and the adsorption mechanism on the upper plate 31 can adsorb the corrugated sheets; adjust the lower plate 21 to the correct position, move the upper plate 31 toward the lower plate 21 to fit the two corrugated sheets, and fix the two corrugated sheets by spot welding with the laser spot welding device 40; repeat the steps of adjusting the height of the upper plate 31 and using the upper plate 31 to stack the corrugated sheets on the lower plate 21 until the stacked corrugated sheets reach the required height.

[0059] In step S4, the specific operation of placing the honeycomb structure assembly tool 100 carrying the honeycomb structure into the brazing furnace for brazing is as follows: removing the wearing parts, stacking the multi-layer corrugated sheets to the required height between the upper plate 31 and the lower plate 21 and squeezing and positioning them by the upper plate 31 and the lower plate 21, and then placing the tool carrying the honeycomb structure into the brazing furnace for brazing.

[0060] It is understandable that the size of the upper plate 31 and the lower plate 21 can be adjusted according to the size of the required corrugated sheet, for example, a larger upper plate 31 and a lower plate 21 can be replaced to match the corrugated sheet of a larger structure to be superimposed and fixed. The frame structure 10 in the present application can be made of high temperature resistant materials, so that the tooling can be placed in a vacuum brazing furnace together with the honeycomb. The structure of the present invention is simple and reliable, easy to install, and can effectively solve the problems of superposition and fixation of brazed honeycomb corrugated sheets, and improve the qualified rate of brazed honeycomb products. At the same time, the combined modular structure design has a wide range of applications and can meet the needs of most sizes of honeycomb products.

[0061] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A honeycomb structure assembly tool for stacking and spot welding corrugated sheets, characterized in that: It comprises a frame structure, a lower layer component arranged on the frame structure, an upper layer component and a laser spot welding device, wherein the upper layer component and the lower layer component are arranged at intervals, and the upper layer component and the lower layer component are used in conjunction with each other, and the laser spot welding device is arranged on one side of the tube of the lower layer component and the upper layer component and is used for spot welding the corrugated sheet; The lower layer assembly includes a lower plate slidably connected to the frame structure, the upper layer assembly includes an upper plate adapted to the lower plate, an adsorption mechanism disposed on the upper plate and used to adsorb the corrugated sheet, and a vertical movement mechanism connected to the upper plate and driving the upper plate to move toward or away from the lower plate, and the upper plate and the lower plate are both provided with corrugated grooves for accommodating the corrugated sheet; The frame structure includes a base, the base is provided with a limiting structure for limiting the lower plate, the limiting structure includes a first limiting block and a second limiting block arranged in the moving direction of the lower plate, the first limiting block and the second limiting block are respectively arranged at opposite ends of the lower plate; the first limiting block is used to limit the position of the corrugated sheet with odd layers stacked on the lower plate, and the second limiting block is used to limit the position of the corrugated sheet with even layers stacked on the lower plate; In which, the lower plate is configured to be able to adjust its position on the frame structure so that the peak part of the corrugated groove on the lower plate is opposite to the trough part of the corrugated groove on the upper plate, or so that the peak part of the corrugated groove on the lower plate is opposite to the peak part of the corrugated groove on the upper plate.

2. The honeycomb structure assembly tool according to claim 1, characterized in that: The frame structure includes a base, columns erected on the base and a crossbeam installed on the columns, the lower plate is slidably installed on the base, the vertical moving mechanism is installed on the columns, and the laser spot welding device is installed on the crossbeam.

3. The honeycomb structure assembly tool according to claim 2, characterized in that: The laser spot welding device includes a sliding member slidably connected to the crossbeam, a first lifting mechanism installed on the sliding member, and a spot welding body installed on the lifting end of the first lifting mechanism. The sliding direction of the sliding member is consistent with the sliding direction of the lower plate.

4. The honeycomb structure assembly tool according to claim 1, characterized in that: The frame structure includes a base and columns and vertical beams erected on the base, the lower plate is slidably mounted on the base, the vertical moving mechanism is mounted on the columns, and the laser spot welding device is mounted on the vertical beams.

5. The honeycomb structure assembly tool according to claim 4, characterized in that: The laser spot welding device includes a second lifting mechanism installed on the vertical beam, a horizontal moving mechanism installed on the lifting end of the second lifting mechanism, and a spot welding body installed on the moving end of the horizontal moving mechanism. The moving direction of the horizontal moving mechanism is consistent with the sliding direction of the lower plate.

6. The honeycomb structure assembly tool according to any one of claims 2 to 5, characterized in that: The vertical movement mechanism includes a ball screw mounted on the column, and the upper plate is mounted on the moving end of the ball screw; Alternatively, the vertical moving mechanism includes two ball screws arranged in parallel, and a moving block mounted between the moving ends of the two ball screws, each of the ball screws is mounted on the corresponding column, and the upper plate is mounted on the moving block.

7. The honeycomb structure assembly tool according to claim 6, characterized in that: The lower layer component also includes a driving member arranged on the base, wherein the output shaft of the driving member is connected to the lower plate and drives the lower plate to slide on the base.

8. The honeycomb structure assembly tool according to claim 1, characterized in that: The laser spot welding device can be detachably mounted on the frame structure, and the adsorption mechanism can be detachably mounted on the upper plate.

9. A honeycomb structure brazing process, characterized in that: The honeycomb structure brazing process adopts the honeycomb structure assembly tool as claimed in any one of claims 1 to 8, and the honeycomb structure brazing process comprises the following steps: S1. Pressing stainless steel foil or aluminum foil into corrugated sheets; S2, coating the corrugated sheet with solder; S3, stacking and spot welding the corrugated sheets using a honeycomb structure assembly tool to form a honeycomb structure; S4, placing the honeycomb structure assembly tool and the honeycomb structure together into a brazing furnace for brazing, and taking them out after the brazing is completed.

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