Fuel urea box module welding mold

Abstract

The utility model discloses a fuel urea box module welding mold, and belongs to the technical field of welding molds. The fuel urea box module welding mold comprises an upper mold assembly, a lower mold assembly and a heating plate mechanism, wherein the heating plate mechanism is arranged between the upper mold assembly and the lower mold assembly; the heating plate mechanism comprises a first heating plate assembly and a second heating plate assembly, and the first heating plate assembly and the second heating plate assembly are arranged in parallel; the upper die assembly and the lower die assembly each comprise a bottom plate, a supporting assembly and a shape correcting mechanism. The fuel urea box module is limited and fixed through the upper mold assembly and the lower mold assembly, the heating plate mechanism heats and melts the welding face, the uniformity of the temperature of the welding face is guaranteed, and welding is conducted; the supporting assembly constructs a containing cavity according to the shape of the fuel oil urea box module so as to place and support the fuel oil urea box module. The shape correcting mechanism flattens deformation generated in the product injection molding and cooling process before welding, so that the profile tolerance and straightness of the product and the flatness of the welding face are guaranteed.

Description

Technical Field

[0001] The present application relates to a fuel urea tank module welding mould, belonging to the technical field of welding moulds. Background Art

[0002] With the rapid development of the automobile industry and the improvement of automobile environmental protection requirements, the fuel tank is an important safety and regulatory part in the automobile. The structural optimization and performance improvement of the fuel tank have become issues that major automobile manufacturers are competing to explore and solve. Existing heavy-duty transport machinery and large vehicles generally use diesel as fuel and are equipped with urea tanks to reduce the emission of harmful gases from automobile exhaust and meet the National IV standard.

[0003] Traditional fuel tanks are mostly made of aluminum alloy, and some are made by rotational molding. Traditional urea tanks are produced by rotational molding. Both are fixed to the frame by brackets, or two rotationally molded products are fixed to the frame by embedded combination. There are defects such as tight space layout of vehicle chassis components, low production efficiency, and high cost. The integrated design of the fuel urea tank module adopts the production process of injection molding first and welding later, which can effectively improve the above problems.

[0004] At present, the welding jigs and fixtures of container products that are first injection molded and then welded are simple in design, and cannot accurately position and correct the welded parts. They also have problems such as low operating efficiency, unsightly appearance, poor product quality, and low pass rate. In addition, especially for the welding of large-sized and deep-cavity fuel urea tanks, on the one hand, the welding area of ​​the product is large, and it is difficult to ensure the temperature uniformity of the hot plate assembly; on the other hand, large injection molded parts are prone to shrinkage and deformation during cooling, and it is difficult to ensure the contour and flatness of the product welding. The product welding surface is positive, the heating is uniform everywhere, the melting depth of the glue position is consistent, and the overflow is uniform and beautiful, which not only improves the appearance quality of the product, but also affects the product sealing pass rate and the continuous quality stability of the fuel urea tank module production. Utility Model Content

[0005] In order to solve the above problems, the present application proposes a fuel urea tank module welding mold, which limits and fixes the fuel urea tank module to be welded by setting an upper mold assembly and a lower mold assembly, heats and melts the welding surface by setting a heating plate mechanism, ensures the uniformity of the temperature of the welding surface, and realizes the welding of the fuel urea tank module; the support assembly is arranged on the bottom plate, and a accommodating cavity is constructed according to the shape of the fuel urea tank module to place and support the fuel urea tank module to be welded; the correction mechanism is arranged above the support assembly to smooth the deformation generated during the injection molding cooling process of the product before welding, so as to ensure the contour, straightness and flatness of the product and the flatness of the welding surface.

[0006] According to one aspect of the present application, a fuel urea tank module welding mold is provided, including an upper mold assembly, a lower mold assembly, and a heating plate mechanism, wherein the heating plate mechanism is arranged between the upper mold assembly and the lower mold assembly; the heating plate mechanism includes a first heating plate assembly and a second heating plate assembly, and the first heating plate assembly and the second heating plate assembly are arranged in parallel; the upper mold assembly and the lower mold assembly both include a base plate, a support assembly and a corrective mechanism, the support assembly is arranged on the base plate, and the corrective mechanism is arranged on the support assembly to ensure the contour, straightness and flatness of the product and the flatness of the welding surface.

[0007] Optionally, the first heating plate assembly and the second heating plate assembly both include a bakelite board, a fixing plate, an insulating layer and a heating plate, wherein the insulating layer is fixed between the fixing plate and the heating plate to reduce the heat generated by the heating plate from being transferred to the fixing plate and the bakelite board.

[0008] Optionally, the heat insulation layer includes a plurality of heat insulation columns, which are evenly distributed between the heating plate and the fixing plate; and a protective frame is also provided around the heat insulation layer.

[0009] Optionally, the heating plate is provided with a plurality of evenly distributed heating tubes and a plurality of temperature sensing elements, the heating tubes are arranged in parallel, and each temperature sensing element monitors 3-5 heating tubes to achieve zoned temperature control.

[0010] Optionally, the support assembly includes a plurality of contoured members, a plurality of support blocks and a plurality of connecting members, the contoured members are arranged above the support blocks, the support blocks are connected to the base plate, and the support blocks are connected in pairs through the connecting members to form a accommodating cavity.

[0011] Optionally, through holes are provided on the bottom plate and the support block to reduce dead weight; a card slot is provided above the contoured member, and the card slot is card-engaged with the edge of the fuel urea tank module.

[0012] Optionally, the orthopedic mechanism includes a plurality of flattening components, which are arranged circumferentially along the contour piece and are disposed on the contour piece.

[0013] Optionally, the flattening assembly includes a pressing block and a cylinder, the cylinder is provided with a cylinder seat, and the cylinder seat is connected to the support block; the pressing block is provided with a plurality of flattening pieces, the cylinder is connected to the pressing block, and the cylinder drives the pressing block to move forward and backward.

[0014] Optionally, a plurality of blocks are provided at the edge of the welding surface, and a groove is provided at the front of the flattening member, and the groove abuts against the block to flatten the welding surface.

[0015] Optionally, four guide pillars are provided between the upper mold assembly and the first heating plate assembly, and between the lower mold assembly and the second heating plate assembly, and guide sleeves are provided at both ends of the guide pillars.

[0016] The beneficial effects of this application include but are not limited to:

[0017] 1. The fuel urea tank module welding mold provided in the present application is used to limit and fix the fuel urea tank module to be welded by arranging an upper mold assembly and a lower mold assembly, and to heat and melt the welding surface by arranging a heating plate mechanism to ensure the uniformity of the temperature of the welding surface, so as to realize the welding of the fuel urea tank module; the support assembly is arranged on the bottom plate, and a receiving cavity is constructed according to the shape of the fuel urea tank module to place and support the fuel urea tank module to be welded; the correction mechanism is arranged above the support assembly to smooth the deformation generated during the injection molding cooling process of the product before welding, so as to ensure the contour, straightness and flatness of the product and the flatness of the welding surface.

[0018] 2. The fuel urea tank module welding mold provided by the present application, the first heating plate assembly and the second heating plate assembly each include a bakelite board, a fixed plate, a heat insulation layer and a heating plate in sequence. The bakelite board has the characteristics of wear resistance, high temperature resistance, insulation, and no static electricity. On the one hand, it is conducive to reducing the heat generated by the heating plate due to long-term operation and being conducted to the welding equipment, reducing the probability of equipment damage and extending the service life of the equipment; on the other hand, it is convenient for protection and placement when the welding mold is shut down. The fixed plate is connected to the welding equipment, and the welding equipment drives the fixed plate to move back and forth to withdraw or place the heating plate mechanism between the upper mold assembly and the lower mold assembly; the setting of the heat insulation layer is conducive to reducing the heat generated by the hot plate from being conducted to the fixed plate, and then to the welding equipment; the heating plate heats and melts the welding surface, and by setting the hot plate temperature, hot melt time, and hot melt pressure, the melting state of the plastic is monitored, and the product glue position melting depth, overflow and solidification state are controlled to achieve welding of the fuel urea tank module.

[0019] 3. The fuel urea tank module welding mold provided in the present application has a number of evenly distributed heating tubes and a number of temperature sensors on the heating plate. The heating tubes are arranged in parallel, and each temperature sensor monitors 3-5 heating tubes to achieve zoned temperature control and jointly achieve temperature balance on the welding surface, thus solving the consistency problem of hot plate welding. The insulation layer is hollow and has a number of insulation columns to reduce heat conduction.

[0020] 4. The fuel urea tank module welding mold provided in the present application has a card slot provided above the profiling part, and the card slot is engaged with the edge flange of the fuel urea tank module to perform preliminary shaping on the fuel urea tank module and smooth the inner or outer recessed or convex parts of the fuel urea tank module, that is, to smooth the straightness of the contour of the fuel urea tank module in the vertical direction; the correction mechanism includes a plurality of flattening components, which are arranged on the profiling part, and the flattening components include a pressing block and a cylinder, and a cylinder seat is provided on the cylinder, and the cylinder seat is connected to the support block; a plurality of flattening parts are provided on the pressing block, and the cylinder is connected to the pressing block, and the cylinder drives the pressing block to move forward and backward, thereby driving the flattening part to move forward and backward, and when the cylinder is pushed forward, the pressing block is pushed forward to move forward, thereby driving the flattening part to move forward, so that the front groove of the flattening part abuts against the welding surface, flattens the welding surface, and realizes the flattening of the fuel urea tank module in the horizontal direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of a fuel urea tank module welding mold involved in an embodiment of the present application;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the first heating plate assembly of the fuel urea tank module welding mold involved in the embodiment of the present application;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the lower mold assembly of the fuel urea tank module welding mold involved in the embodiment of the present application;

[0025] Figure 4 This is a schematic diagram of the top view of the lower mold assembly of the fuel urea tank module welding mold involved in the embodiment of the present application;

[0026] Figure 5 This is a front view structural schematic diagram of a lower mold assembly of a fuel urea tank module welding mold involved in an embodiment of the present application;

[0027] Figure 6 This is a schematic diagram of the cross-sectional structure at AA of the lower mold assembly of the fuel urea tank module welding mold involved in the embodiment of the present application;

[0028] Figure 7 This is a partial enlarged view of part A of the fuel urea tank module welding mold involved in the embodiment of the present application;

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of the flattening member involved in the embodiment of the present application.

[0030] List of parts and reference numerals:

[0031] 1. First heating plate assembly; 2. Second heating plate assembly; 3. Bottom plate; 4. Bakelite board; 5. Fixing plate; 6. Insulation layer; 7. Heating plate; 8. Heating tube; 9. Temperature sensing element; 10. Support block; 11. Profiling element; 12. Connecting element; 13. Slot; 14. Through hole; 15. Pressing block; 16. Cylinder; 17. Flattening element; 18. Groove; 19. Block; 20. Cylinder seat; 21. Support element; 22. Guide column; 23. Guide sleeve. DETAILED DESCRIPTION

[0032] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0033] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0035] In addition, in the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0036] 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 technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] In this application, 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, an electrical connection, or a communication; 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 this application can be understood according to specific circumstances.

[0038] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0039] refer to Figure 1-Figure 8 The embodiment of the present application discloses a fuel urea tank module welding mold, including an upper mold assembly, a lower mold assembly, and a heating plate mechanism, the heating plate mechanism is arranged between the upper mold assembly and the lower mold assembly; the heating plate mechanism includes a first heating plate assembly 1 and a second heating plate assembly 2, the first heating plate assembly 1 and the second heating plate assembly 2 are arranged in parallel; the upper mold assembly and the lower mold assembly both include a base plate 3, a support assembly and a correction mechanism, the support assembly is arranged on the base plate 3, and the correction mechanism is arranged on the support assembly to ensure the contour, straightness and flatness of the product and the flatness of the welding surface.

[0040] Specifically, the upper mold assembly and the lower mold assembly are provided to limit and fix the fuel urea tank module to be welded, and the heating plate mechanism is provided to heat and melt the welding surface to realize the welding of the fuel urea tank module; the support assembly is provided on the bottom plate 3, and a receiving cavity is constructed according to the shape of the fuel urea tank module to place and support the fuel urea tank module to be welded; the correction mechanism is provided above the support assembly to ensure the contour, straightness of the product welding and the flatness of the welding surface.

[0041] As an embodiment, the first heating plate assembly 1 and the second heating plate assembly 2 both include a bakelite board 4, a fixed plate 5, an insulation layer 6 and a heating plate 7. The insulation layer 6 is fixed between the fixed plate 5 and the heating plate 7 to reduce the heat generated by the heating plate 7 from being transferred to the fixed plate 5 and the bakelite board 4.

[0042] Specifically, the first heating plate assembly 1 and the second heating plate assembly 2 each include a bakelite board 4, a fixed plate 5, an insulating layer 6 and a heating plate 7 in sequence. The setting of the bakelite board 4 is conducive to isolating heat, thereby preventing the heat generated by the heating plate 7 from being conducted to the welding equipment due to long-term work, reducing equipment damage and extending the service life of the equipment; the fixed plate 5 is connected to the welding equipment, and the welding equipment drives the fixed plate 5 to move forward and backward to withdraw or place the heating plate 7 between the upper mold assembly and the lower mold assembly; the setting of the insulating layer 6 is conducive to reducing the heat conducted to the fixed plate 5; the heating plate 7 heats and melts the welding surface to achieve welding of the fuel urea tank module.

[0043] Specifically, the present application does not make specific limitations on the thickness of the bakelite board 4, the fixing board 5, the insulation layer 6, and the heating board 7, and those skilled in the art may make specific choices based on actual conditions.

[0044] As a specific implementation, the thickness of the bakelite board 4 is 5 mm.

[0045] Specifically, the present application does not limit the specific material of the heating plate 7, and those skilled in the art may make a selection according to actual conditions.

[0046] As a specific implementation, the heating plate 7 is a high temperature resistant metal plate prepared by powder metallurgy process.

[0047] As an implementation mode, the heat-insulating layer 6 includes a plurality of heat-insulating columns, which are evenly distributed between the heating plate 7 and the fixing plate 5 ; and a protective frame is also provided around the heat-insulating layer 6 .

[0048] Specifically, the present application does not make specific limitations on the number, size, and material of the insulation columns, and those skilled in the art may make their own choices based on actual conditions.

[0049] As a specific implementation, the heat insulation column is made of ceramic material.

[0050] Specifically, the present application does not make any specific limitation on the size and material of the protective frame, and those skilled in the art may make a selection based on actual conditions.

[0051] As a specific implementation method, the protective frame is made of stainless steel, and the protective frame shields the heat-insulating column to make it more beautiful.

[0052] As an implementation mode, a plurality of evenly distributed heating tubes 8 and a plurality of temperature sensing elements 9 are provided on the heating plate 7. The heating tubes 8 are arranged in parallel, and each temperature sensing element 9 controls three heating tubes 8 to realize zoned temperature control.

[0053] Specifically, the present application does not make a specific limitation on the number of heating tubes 8 and temperature sensing components 9, and those skilled in the art may make a selection according to actual conditions.

[0054] As a specific implementation method, the number of heating tubes 8 is 12, the number of temperature sensing components 9 is 4, and each temperature sensing component 9 controls 3 heating tubes 8 to achieve zoned temperature control, thereby achieving temperature balance on the welding surface and solving the consistency problem of hot plate welding.

[0055] As an embodiment, the support assembly includes a plurality of contour members 11, a plurality of support blocks 10 and a plurality of connecting members 12. The contour members 11 are arranged above the support blocks 10. The support blocks 10 are connected to the base plate 3. The support blocks 10 are connected to each other by connecting members 12 to form a receiving cavity.

[0056] Specifically, the present application does not make any specific limitation on the number of the contour members 11 , the support blocks 10 and the connecting members 12 , and those skilled in the art may make their selections according to actual conditions.

[0057] Specifically, the supporting blocks 10 are connected to each other through the connecting pieces 12, and the contoured pieces 11 and the supporting blocks 10 construct a receiving cavity according to the shape of the fuel urea tank module to place the fuel urea tank module to be welded.

[0058] Specifically, the present application does not make any specific limitation on the connection method between the contour member 11 and the support block 10, the connection method between the support block 10 and the base plate 3, and the connection method between the support block 10 and the connecting member 12. Those skilled in the art may make a choice according to actual conditions.

[0059] As a specific implementation manner, the contoured member 11 is threadedly connected to the support block 10 , the support block 10 is threadedly connected to the base plate 3 , and the support block 10 is threadedly connected to the connecting member 12 .

[0060] As an implementation mode, through holes 14 are provided on the bottom plate 3 and the support block 10 to reduce the dead weight; a card slot 13 is provided above the contoured member 11, and the card slot 13 is card-engaged with the edge of the fuel urea tank module.

[0061] Specifically, the present application does not make any specific limitation on the number, size and shape of the through holes 14 , and those skilled in the art may make a selection based on actual conditions.

[0062] Specifically, the base plate 3 and the support block 10 of the present application are provided with through holes 14, which effectively reduce the deadweight of the mold; the profiling member 11 is provided with a card slot 13, and the card slot 13 is engaged with the flange of the edge of the fuel urea tank module to perform preliminary shaping on the fuel urea tank module and smooth the sunken or convex parts of the fuel urea tank module, that is, the straightness of the contour of the fuel urea tank module is smoothed in the vertical direction.

[0063] As an implementation mode, the orthopedic mechanism includes a plurality of flattening components, which are arranged along the circumference of the prosthetic member 11 and are arranged on the prosthetic member 11 .

[0064] As an embodiment, the flattening assembly includes a pressing block 15 and a cylinder 16, the cylinder 16 is provided with a cylinder seat 20, and the cylinder seat 20 is connected to the support block 10; a plurality of flattening parts 17 are provided on the pressing block 15, and the cylinder 16 is connected to the pressing block 15, and the cylinder 16 drives the pressing block 15 to move forward and backward.

[0065] Specifically, the present application does not make a specific limitation on the number of the flattening members 17 , and those skilled in the art may make a selection according to actual conditions.

[0066] As an implementation manner, a plurality of blocks 19 are provided at the edge of the welding surface, and a groove 18 is provided at the front of the flattening member 17, and the groove 18 abuts against the block 19 to flatten the welding surface.

[0067] Specifically, the present application does not make any specific limitation on the number and size of the blocks 19 . The blocks 19 correspond one to one with the flattening pieces 17 , and those skilled in the art may make a selection according to actual conditions.

[0068] Specifically, the correction mechanism includes a plurality of flattening components, which are arranged on the contour piece 11. The flattening components include a pressing block 15 and a cylinder 16. The cylinder 16 is provided with a cylinder seat 20, and the cylinder seat 20 is connected to the support block 10; a plurality of flattening members 17 are provided on the pressing block 15, and the cylinder 16 is connected to the pressing block 15. The cylinder 16 drives the pressing block 15 to move forward and backward, thereby driving the flattening member 17 to move forward and backward. When the cylinder 16 is pushed forward, the pressing block 15 is pushed forward, thereby driving the flattening member 17 to move forward, so that the front groove 18 of the flattening member 17 abuts against the block 19, that is, the flattening member 17 presses the block 19 to flatten the welding surface, thereby realizing the flattening of the fuel urea tank module in the horizontal direction.

[0069] As a specific implementation manner, a plurality of support members 21 are provided between the fuel urea tank and the bottom plate 3 to support the fuel urea tank according to its shape adaptability.

[0070] Specifically, the present application does not make any specific limitation on the number and shape of the support members 21 , and those skilled in the art may make a selection according to actual conditions.

[0071] Specifically, the present application provides a support member 21 between the fuel urea tank and the bottom plate 3 according to the specific shape of the fuel urea tank to support the fuel urea tank, so that during welding, the welding surface is subjected to balanced force, the welding depth and the amount of overflow are accurately controlled, and the welding quality is ensured.

[0072] As an implementation mode, four guide pillars 22 are provided between the upper mold assembly and the first heating plate assembly 1 and between the lower mold assembly and the second heating plate assembly 2 , and guide sleeves 23 are provided at both ends of the guide pillars 22 .

[0073] Specifically, there are four guide pillars 22, which are arranged at the four corners of the fixed plate 5 and the bottom plate 3 to support the upper mold assembly and the lower mold assembly for easy storage and placement.

[0074] The working process of the fuel urea tank module welding mold provided in this application is as follows:

[0075] Remove the guide column 22 and the guide sleeve 23, and place the fuel urea tank module to be welded into the upper mold assembly and the lower mold assembly respectively. The card groove 13 on the profiling member 11 is engaged with the welding surface flange of the fuel urea tank module to shape the deformed part of the fuel urea tank module, that is, to flatten the fuel urea tank module in the vertical direction; the cylinder 16 drives the pressing block 15 to move forward, driving the flattening member 17 to move forward, and the groove 18 at the front of the flattening member 17 abuts against the card block 19, and the flattening member 17 presses the card block 19 to flatten the welding surface to achieve the adjustment of the horizontal flatness. The bottom plate 3 is connected to the welding equipment, and the welding equipment drives the bottom plate 3 to move in the vertical direction to drive the upper mold assembly and the lower mold assembly to move relative to or toward each other. Movement; the fixing plate 5 of the first heating plate assembly 1 and the second heating plate assembly 2 is connected to the welding equipment, and the welding equipment drives the first heating plate assembly 1 and the second heating plate assembly 2 to move forward and backward to control the first heating plate assembly 1 and the second heating plate assembly 2 to be placed in and withdrawn between the upper mold assembly and the lower mold assembly; the first heating plate assembly 1 and the second heating plate assembly 2 respectively heat the welding surfaces of the fuel urea tank module to be welded to melt the welding surfaces, and when the melting time set by the process is reached, the welding equipment drives the first heating plate assembly 1 and the second heating plate assembly 2 to withdraw from between the upper mold assembly and the lower mold assembly, and the upper mold assembly and the lower mold assembly move relative to each other, and the two fuel urea tank modules to be welded are fitted to achieve welding.

[0076] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0077] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A fuel urea tank module welding mold, characterized in that: It includes an upper mold assembly, a lower mold assembly, and a heating plate mechanism, wherein the heating plate mechanism is arranged between the upper mold assembly and the lower mold assembly; the heating plate mechanism includes a first heating plate assembly and a second heating plate assembly, wherein the first heating plate assembly and the second heating plate assembly are arranged in parallel; the upper mold assembly and the lower mold assembly both include a base plate, a support assembly and a correction mechanism, wherein the support assembly is arranged on the base plate, and the correction mechanism is arranged on the support assembly, so as to ensure the contour, straightness and flatness of the product and the flatness of the welding surface.

2. A fuel urea tank module welding mold according to claim 1, characterized in that: The first heating plate assembly and the second heating plate assembly both include a bakelite board, a fixing plate, a heat insulating layer and a heating plate. The heat insulating layer is fixed between the fixing plate and the heating plate to reduce the heat generated by the heating plate from being transferred to the fixing plate and the bakelite board.

3. A fuel urea tank module welding mold according to claim 2, characterized in that: The heat insulation layer comprises a plurality of heat insulation columns which are evenly distributed between the heating plate and the fixing plate; and a protective frame is arranged around the heat insulation layer.

4. A fuel urea tank module welding mold according to claim 3, characterized in that: The heating plate is provided with a plurality of uniformly distributed heating tubes and a plurality of temperature sensing elements. The heating tubes are arranged in parallel, and each temperature sensing element monitors 3-5 heating tubes to achieve zoned temperature control.

5. The fuel urea tank module welding mold according to claim 1, characterized in that: The support assembly includes a plurality of profiling members, a plurality of support blocks and a plurality of connecting members. The profiling members are arranged above the support blocks. The support blocks are connected to the bottom plate. The support blocks are connected to each other through the connecting members to form a receiving cavity.

6. A fuel urea tank module welding mold according to claim 5, characterized in that: The bottom plate and the support block are both provided with through holes to reduce the dead weight; a card slot is provided above the contoured member, and the card slot is card-connected with the edge of the fuel urea tank module.

7. A fuel urea tank module welding mold according to claim 5, characterized in that: The orthopedic mechanism comprises a plurality of flattening components, which are arranged along the circumference of the prosthetic member and are arranged on the prosthetic member.

8. A fuel urea tank module welding mold according to claim 7, characterized in that: The flattening assembly comprises a pressing block and a cylinder. The cylinder is provided with a cylinder seat, which is connected to the supporting block. The pressing block is provided with a plurality of flattening pieces, which are connected to the cylinder and drive the pressing block to move forward and backward.

9. A fuel urea tank module welding mold according to claim 8, characterized in that: A plurality of clamping blocks are arranged at the edge of the welding surface, and a groove is arranged at the front of the flattening piece, and the groove abuts against the clamping blocks to flatten the welding surface.

10. The fuel urea tank module welding mold according to claim 2, characterized in that: Four guide pillars are arranged between the upper mold assembly and the first heating plate assembly, and between the lower mold assembly and the second heating plate assembly, and guide sleeves are arranged at both ends of the guide pillars.

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