A welding device for radiator of engineering machinery

Abstract

This invention provides a welding apparatus for engineering machinery radiators, relating to the field of welding. It is suitable for welding branch pipes of an engineering machinery radiator to a main pipe. The main pipe has through holes for the branch pipes to pass through. The welding apparatus includes a machine base, a cutting mechanism, and a welding mechanism. The cutting mechanism is located on the machine base and is used to cut the sidewalls of the through holes to form multiple feeding grooves. The multiple feeding grooves are arranged at intervals along the circumference of the through holes, and the multiple feeding grooves have different sizes. The feeding grooves are used to hold welding materials suitable for them. The welding mechanism is located on the machine base and includes a welding pipe. The welding pipe is used to surround the outside of the multiple feeding grooves. The welding pipe can simultaneously heat all the welding materials, causing all the welding materials to melt and allowing the branch pipes to pass through the main pipe and weld to the groove walls of the feeding grooves. This invention can improve the welding quality of the main pipe and branch pipes in engineering machinery radiators.

Description

Technical Field

[0001] The invention relates to the field of welding, and in particular to a welding device for a radiator of an engineering machinery. Background Art

[0002] During the working process, construction machinery will generate a certain amount of heat, so a construction machinery radiator is correspondingly provided to dissipate heat for the construction machinery. The construction machinery radiator includes a main pipe and a plurality of branch pipes welded to the main pipe, and the main pipe is used to converge the heat dissipation medium flowing through the plurality of branch pipes.

[0003] The branch pipe and the main pipe are arranged roughly in a T shape, and the annular seam between the branch pipe and the main pipe is arranged roughly in annular shape. In the related art, when welding the annular seam, the welding device will first weld the first half of the annular seam, and then weld the second half of the annular seam, so as to complete the welding of the entire annular seam. However, when welding the second half of the annular seam, it is easy to cause the first half that has been welded previously to be reheated, thereby affecting the welding quality of the first half, and the solder of the first half will be mixed with the solder of the second half, eventually resulting in different shrinkage amounts of the first half and the second half, thereby affecting the quality of the annular seam and the subsequent docking operation of the branch pipe.

[0004] The information disclosed in the background technology section of the present invention is only intended to deepen the understanding of the general background technology of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to those skilled in the art. Summary of the invention

[0005] Based on this, it is necessary to provide a welding device for an engineering machinery radiator that can improve the welding quality of the main pipe and the branch pipe in the engineering machinery radiator in order to address the problems existing in the current ball mill.

[0006] The above purpose is achieved through the following technical solutions:

[0007] A welding device for a radiator of an engineering machinery, suitable for welding a branch pipe of the radiator of the engineering machinery to a main pipe, the main pipe having a through hole for the branch pipe to pass through, the welding device for the radiator of the engineering machinery comprising a machine platform, a cutting mechanism and a welding mechanism;

[0008] The cutting mechanism is arranged on the machine platform and is used to cut the side wall of the via hole to form a plurality of discharge grooves, the plurality of discharge grooves are arranged at intervals along the circumference of the via hole, and the plurality of discharge grooves have different sizes, and the discharge grooves are used to place solder adapted thereto;

[0009] The welding mechanism is arranged on the machine platform, and comprises a welding pipe, and the welding pipe is used to surround the outer sides of the plurality of discharge troughs;

[0010] The welding pipe can heat all the solders at the same time, so that all the solders are melted by the heat, and the branch pipes are passed through the main pipe and welded to the wall of the discharge trough.

[0011] Furthermore, the discharge trough includes at least a first trough and a second trough, and the size of the first trough is larger than that of the second trough; the welded pipe encloses an annular area, and the contour edge of the annular area includes at least a first edge segment and a second edge segment;

[0012] The first edge segment corresponds to the first material groove in the circumferential direction of the via hole, and the second edge segment corresponds to the second material groove in the circumferential direction of the via hole;

[0013] Wherein, along the radial direction of the via hole, the distance from the first edge segment to the first material groove is smaller than the distance from the second edge segment to the second material groove.

[0014] Further, the shape of the annular area is elliptical;

[0015] The curvature of the first edge segment is smaller than the curvature of the second edge segment, so that in the radial direction of the via hole, the distance from the first edge segment to the first groove is smaller than the distance from the second edge segment to the second groove.

[0016] Furthermore, the welding mechanism further comprises a welding body, and the welded pipe comprises a first pipe section and a second pipe section connected to each other;

[0017] The first pipe section includes a first connecting portion and a first surrounding portion; one end of the first connecting portion is connected to the welding body, and the first surrounding portion is connected to an end of the first connecting portion away from the welding body and is arranged in an arc shape;

[0018] The second pipe section includes a second connecting portion and a second surrounding portion; one end of the second connecting portion is connected to the welding body, the second surrounding portion is connected to an end of the second connecting portion away from the welding body, and is connected to an end of the first surrounding portion away from the first connecting portion, and the second surrounding portion is arranged in an arc shape;

[0019] Wherein, the first surrounding portion and the second surrounding portion cooperate to form the annular area.

[0020] Furthermore, the welding mechanism also includes a nitrogen pipe, which has a nitrogen port, and the nitrogen port is arranged toward the annular area, wherein the nitrogen in the nitrogen pipe is sprayed toward the annular area through the nitrogen port.

[0021] Furthermore, it also includes a support member, which is arranged inside the main pipe and includes a support portion;

[0022] Wherein, along the radial direction of the main pipe, the support portion is located at the inner side of the through hole and is used to support the branch pipe.

[0023] Furthermore, the cutting mechanism also cuts the hole wall of the through hole to form a chamfer, and along the radial direction of the main pipe, the chamfer is located on the inner side of the material discharge trough, and the support member also includes an enclosing portion, which is surrounded by the support portion, and the top and the chamfered wall cooperate to form a material storage trough.

[0024] Furthermore, it also includes a fixing mechanism, which is arranged on the machine platform and includes a fixing part and a movable part, and the fixing part cooperates with the movable part to form a clamping space, and the clamping space is used to accommodate the main tube;

[0025] The movable member can move relative to the fixed member to approach or move away from the fixed member, thereby correspondingly clamping or releasing the main pipe.

[0026] Furthermore, it also includes a robot mechanism, and the robot mechanism is arranged on the machine platform;

[0027] Wherein, the manipulator mechanism can be selectively connected to one of the cutting mechanism and the welding mechanism;

[0028] Alternatively, the robot mechanism includes two robot mechanisms, and one of the two robot mechanisms is connected to the cutting mechanism, and the other is connected to the welding mechanism.

[0029] Furthermore, it also includes a movable plate, the movable plate is arranged on the machine platform, and the fixing mechanism is installed on the movable plate;

[0030] Wherein, along the extension direction of the main pipe, the movable plate can move relative to the machine platform to drive the fixing mechanism to move relative to the manipulator mechanism.

[0031] The beneficial effects of the present invention are:

[0032] The present invention surrounds the welding pipes outside a plurality of discharge troughs and heats all the solders at the same time, so that the heated and melted solders are in an integrated structure, thereby avoiding the problem of poor welding quality in the segmented welding form; at the same time, the cutting mechanism forms discharge troughs of different sizes on the hole wall of the through hole to place suitable solders, thereby ensuring that there is enough solder in the subsequent welding process to weld the branch pipes to the main pipe, thereby ensuring the welding quality between the main pipe and the branch pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1This is a schematic diagram of the cooperation between the engineering machinery radiator welding device, the main pipe and the branch pipe according to an embodiment of the present application;

[0034] Figure 2 for Figure 1 Schematic diagram of the coordination between the welding device of the engineering machinery radiator and the main pipe and branch pipe from another perspective;

[0035] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0036] Figure 4 This is a schematic structural diagram of a cutting mechanism according to an embodiment of the present application;

[0037] Figure 5 This is a schematic diagram of the coordination between the support member, the main pipe, the branch pipe and the solder according to an embodiment of the present application;

[0038] Figure 6 for Figure 5 Schematic diagram of the structure of the middle supervisor;

[0039] Figure 7 for Figure 6 Section along BB;

[0040] Figure 8 for Figure 7 A partial enlarged view of point C in the middle;

[0041] Fig. 9 This is a structural schematic diagram of a welding mechanism according to an embodiment of the present application;

[0042] Fig.10 for Fig. 9 A structural diagram of the welding mechanism from another perspective;

[0043] Fig.11 This is a schematic diagram of the coordination between the support member, the main pipe, the branch pipe and the solder according to an embodiment of the present application;

[0044] Fig.12 for Fig.11 Section along DD;

[0045] Fig.13 for Fig.12 A partial enlarged view of point E in the middle;

[0046] Fig.14 It is a partial schematic diagram of the cooperation between the engineering machinery radiator welding device and the main pipe and branch pipe according to one embodiment of the present application.

[0047] in:

[0048] 100. Welding device for radiator of engineering machinery; 10. Machine; 20. Cutting mechanism; 21. Cutting head; 30. Welding mechanism; 31. Welding pipe; 311. Annular area; 3111. First edge section; 3112. Second edge section; 312. First pipe section; 3121. First connecting part; 3122. First surrounding part; 313. Second pipe section; 3131. Second connecting part; 3132. Second surrounding part; 32. Welding body; 33. Nitrogen pipe; 34. Inflating pipe; 40. Support member; 41. Base; 42. Fixing part; 43. Support part; 44. 4. Enclosing part; 44A, material storage trough; 50. Fixing mechanism; 50A, clamping space; 51. Fixing part; 52. Movable part; 60. Manipulator mechanism; 70. Movable plate; 80. First driving mechanism; 81. Second driving mechanism; 90. First guiding mechanism; 91. First slider; 92. First slide rail; 93. Second guiding mechanism; 94. Second slider; 95. Second slide rail; 200. Main pipe; 210. Through hole; 220. Material discharge trough; 230. First material trough; 240. Second material trough; 250. Chamfering; 300. Branch pipe; 400. Solder. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0050] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is 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 to the present invention.

[0051] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0052] Please refer to Figures 1 to 8 The present application proposes a construction machinery radiator welding device 100. In the embodiment of the present application, the welding and processing object of the construction machinery radiator welding device 100 is the construction machinery radiator, specifically the main pipe 200 and the branch pipe 300 of the construction machinery radiator, that is, the construction machinery radiator welding device 100 is suitable for welding the branch pipe 300 of the construction machinery radiator to the main pipe 200, and the main pipe 200 has a through hole 210 for the branch pipe 300 to pass through.

[0053] The construction machinery heat sink welding device 100 includes a machine platform 10 , a cutting mechanism 20 and a welding mechanism 30 . The cutting mechanism 20 and the welding mechanism 30 are both disposed on the machine platform 10 .

[0054] The cutting mechanism 20 is used to cut the side wall of the via hole 210 to form a plurality of discharge grooves 220. It is understandable that the cutting mechanism 20 includes a cutting head 21, so as to use the cutting head 21 to cut the side wall of the via hole 210. The plurality of discharge grooves 220 are arranged at intervals along the circumference of the via hole 210, and the plurality of discharge grooves 220 have different sizes. The discharge grooves 220 are used to place the solder 400 adapted thereto. It should be noted that the adaptation referred to here means that the solder 400 can fill the discharge groove 220, wherein the size of the solder 400 is equivalent to the size of the discharge groove 220, or the size of the solder 400 is larger than the size of the discharge groove 220, so that the solder 400 can fill the discharge groove 220.

[0055] like Figure 8As shown, it can be understood that when a through hole 210 is vertically opened on the main pipe 200, the thickness of part of the hole wall of the through hole 210 is relatively thick, while the thickness of part of the hole wall is relatively thin, wherein the thickness L2 of the hole opened in the thinner area is the thickness of the wall of the main pipe 200, while the thickness of the hole opened in the thicker area is not the thickness of the wall of the main pipe 200, but the thickness L1 generated by the oblique cut hole, so that areas with different thicknesses will be generated when the through hole 210 is opened. Based on this, the cutting mechanism 20 opens a larger discharge groove 220 in the thicker area of ​​the through hole 210 to place the appropriate solder 400, and opens a smaller discharge groove 220 in the thinner area of ​​the through hole 210 to place the appropriate solder 400, so as to ensure that there is enough solder 400 in the subsequent welding process to weld the branch pipe 300 to the main pipe 200, and to ensure the welding quality between the main pipe 200 and the branch pipe 300.

[0056] The welding mechanism 30 includes a welding pipe 31, wherein the welding pipe 31 can be welded in the form of high-frequency welding. The high-frequency welding referred to here is to use a high-frequency current of 10 to 500 kHz to pass through the connection between the main pipe 200 and the branch pipe 300 to generate resistance heat, and then when the solder 400 reaches the melting point, it will begin to melt, and then the solder 400 will flow to the gap between the hole wall of the via 210 and the outer peripheral surface of the branch pipe 300 after melting, to achieve welding. Among them, high-frequency welding has the advantages of being able to quickly heat the workpiece and melt the solder 400, thereby shortening the welding time. The present invention does not specifically limit the welding form adopted by the welding pipe 31.

[0057] The welding pipe 31 is used to surround the outer sides of the plurality of discharge troughs 220, and the welding pipe 31 can heat all the solders 400 at the same time, so that all the solders 400 are melted by the heat, and the branch pipe 300 is passed through the main pipe 200 and welded to the wall of the discharge trough 220. In this way, during the welding process of the welding pipe 31, all the solders 400 can be heated and melted at the same time, and the melted solders 400 will be in an integrated structure, avoiding the problem of poor welding quality caused by the segmented welding form.

[0058] Please refer to Figure 3 , Figure 6 , Figure 8 , Fig. 9 as well as Fig.10 In some embodiments, the material trough 220 includes at least a first material trough 230 and a second material trough 240. The size of the first material trough 230 is larger than the size of the second material trough 240. It can be understood that the first material trough 230 corresponds to the area where the wall thickness of the via hole 210 is thicker, and the second material trough 240 corresponds to the area where the wall thickness of the via hole 210 is thinner.

[0059] The welding tube 31 encloses an annular region 311, and the contour edge of the annular region 311 includes at least a first edge segment 3111 and a second edge segment 3112. The first edge segment 3111 corresponds to the first material groove 230 in the circumferential direction of the through hole 210, and the second edge segment 3112 corresponds to the second material groove 240 in the circumferential direction of the through hole 210. In the radial direction of the through hole 210, the distance from the first edge segment 3111 to the first material groove 230 is smaller than the distance from the second edge segment 3112 to the second material groove 240.

[0060] During the actual welding process, the size of the solder 400 located in the first material trough 230 is larger than the size of the solder 400 located in the second material trough 240. In order to make the melting speeds of the solder 400 located in the first material trough 230 and the solder 400 located in the second material trough 240 as consistent as possible, the distance from the first edge segment 3111 to the first material trough 230 is made smaller than the distance from the second edge segment 3112 to the second material trough 240, so that the solder 400 located in the first material trough 230 receives higher heat than the solder 400 located in the second material trough 240, thereby making the melting speeds of different solders 400 as consistent as possible and avoiding the situation where the melting speeds of the solders 400 are different.

[0061] It should be noted that the material discharge trough 220 of the present invention is not limited to the first material trough 230 and the second material trough 240. For example, when at least three areas with different thicknesses are generated when the through hole 210 is opened, a third material trough will also be included. Correspondingly, the contour edge of the annular area 311 also includes a third edge segment. The present invention does not impose any restrictions on this.

[0062] Please refer to Figure 6 and Fig.10 In some embodiments, the shape of the annular area 311 is elliptical, wherein the curvature of the first edge segment 3111 is smaller than the curvature of the second edge segment 3112, so that in the radial direction of the via 210, the distance from the first edge segment 3111 to the first material groove 230 is smaller than the distance from the second edge segment 3112 to the second material groove 240.

[0063] In this way, the elliptical structure is more suitable for the circular shape of the branch pipe 300, which is convenient for sleeve installation of the branch pipe 300 and ring arrangement around the circumference of multiple material discharge troughs 220. In addition, the different curvatures of the elliptical first edge segment 3111 and the second edge segment 3112 can be utilized to meet the requirement that the distance from the first edge segment 3111 to the first material trough 230 is smaller than the distance from the second edge segment 3112 to the second material trough 240, so as to make the melting speeds of different solders 400 as consistent as possible during the subsequent welding process.

[0064] Of course, the present application is not limited thereto. In other embodiments, the area enclosed by the welding pipe 31 may be arranged in a rectangular shape.

[0065] Please refer to Figures 9 and 10 In some embodiments, the welding mechanism 30 further includes a welding body 32, the welding pipe 31 includes a first pipe section 312 and a second pipe section 313 connected to each other, the first pipe section 312 includes a first connecting portion 3121 and a first surrounding portion 3122, one end of the first connecting portion 3121 is connected to the welding body 32, the first surrounding portion 3122 is connected to an end of the first connecting portion 3121 away from the welding body 32, and is arranged in an arc shape, the second pipe section 313 includes a second connecting portion 3131 and a second surrounding portion 3132, one end of the second connecting portion 3131 is connected to the welding body 32, the second surrounding portion 3132 is connected to an end of the second connecting portion 3131 away from the welding body 32, and is connected to an end of the first surrounding portion 3122 away from the first connecting portion 3121, and the second surrounding portion 3132 is arranged in an arc shape;

[0066] The first surrounding portion 3122 and the second surrounding portion 3132 cooperate to form the annular area 311. In this way, the first surrounding portion 3122 and the second surrounding portion 3132 can be used to surround the plurality of discharge slots 220, and a portion of the first surrounding portion 3122 and a portion of the second surrounding portion 3132 are stacked, so that in the stacking direction of the first surrounding portion 3122 and the second surrounding portion 3132 can both heat the solder 400 to improve the heating efficiency of the solder 400.

[0067] Please refer to Figures 9 and 10 In some embodiments, the welding mechanism 30 also includes a nitrogen pipe 33, which is connected to the welding body 32. It can be understood that the welding mechanism 30 also includes an inflation pipe 34, which is connected to the welding body 32 to provide nitrogen to the nitrogen pipe 33 through the welding body 32.

[0068] The nitrogen pipe 33 has a nitrogen port, which is arranged toward the annular area 311, and the nitrogen in the nitrogen pipe 33 is sprayed toward the annular area 311 through the nitrogen port. In this way, when the welding head is welding, the nitrogen pipe 33 can spray nitrogen at the same time. As an inert gas, nitrogen can effectively isolate oxygen to reduce welding slag generated by the welding head during welding, and can improve the welding strength and sealing between the main pipe 200 and the branch pipe 300.

[0069] Please refer to Figure 5 , Fig.11 as well as Fig.12In some embodiments, the engineering machinery radiator welding device 100 further includes a support member 40, which is disposed inside the main pipe 200. The support member 40 includes a base 41, a fixing portion 42, and a supporting portion 43. The base 41 is disposed inside the main pipe 200 and is connected to the supporting portion 43, and the base 41 has an escape opening for the branch pipe 300 to pass through. The fixing portion 42 is connected to at least one end of the base 41 along its extension direction, and is used to be connected to the main pipe 200. For example, the fixing portion 42 can be fixedly connected to the main pipe 200 by threaded connection.

[0070] In the radial direction of the main pipe 200, the support portion 43 is located inside the through hole 210 and is used to support the branch pipe 300. In this way, the support portion 43 supports the branch pipe 300, so that the branch pipe 300 can remain stable relative to the main pipe 200, thereby facilitating the subsequent welding operation of the welding pipe 31 and ensuring the final welding quality.

[0071] Please refer to Figure 8 and Fig.13 Furthermore, the cutting mechanism 20 also cuts the hole wall of the through hole 210 to form a chamfer 250. Along the radial direction of the main pipe 200, the chamfer 250 is located on the inner side of the discharge trough 220. The support member 40 also includes an enclosing portion 44, one side of the enclosing portion 44 is connected to the base 41, and the other side is connected to the support portion 43, and the enclosing portion 44 is connected to the avoidance port.

[0072] The enclosed portion 44 is enclosed by the support portion 43, and the top cooperates with the wall surface of the chamfer 250 to form a material storage tank 44A. It can be understood that when the solder 400 in the discharge tank 220 is melted by the welding pipe 31, the solder 400 will flow to the material storage tank 44A, and finally weld the branch pipe 300 and the main pipe 200 together. The present invention effectively reduces the risk of the solder 400 leaking out by providing a material storage tank 44A to receive the solder 400, and further ensures the welding quality between the branch pipe 300 and the main pipe 200.

[0073] See also Fig.14 In some embodiments, the engineering machinery radiator welding device 100 also includes a fixing mechanism 50, which is arranged on the machine platform 10 and includes a fixing part 51 and a movable part 52. The fixing part 51 and the movable part 52 cooperate to form a clamping space 50A, and the clamping space 50A is used to accommodate the main pipe 200.

[0074] Exemplarily, the fixing members 51 may include two, and the two fixing members 51 are arranged at intervals along the extension direction of the main tube 200, for example, respectively arranged adjacent to the two ends of the main tube 200 along its extension direction, and the movable member 52 is extended along the extension direction of the main tube 200. In this way, the movable member 52 and the two fixing members 51 construct a clamping space 50A in a direction perpendicular to the extension direction of the main tube 200.

[0075] The movable member 52 can move relative to the fixed member 51, that is, the movable member 52 can move in a direction perpendicular to the extension direction of the main pipe 200 to approach or move away from the fixed member 51, thereby correspondingly clamping or releasing the main pipe 200. It can be understood that when the movable member 52 approaches the fixed member 51, the clamping space 50A will be reduced, so that the movable member 52 and the fixed member 51 can cooperate to clamp the main pipe 200, and when the movable member 52 moves away from the fixed member 51, the clamping space 50A will be expanded, so that the movable member 52 and the fixed member 51 can release the main pipe 200. This arrangement can ensure that the position of the main pipe 200 is fixed and not easily offset during the welding process, so that the main pipe 200 can remain stable when being welded, and the welding quality of the main pipe 200 and the branch pipe 300 is guaranteed.

[0076] Please refer to Figure 1 , Figure 2 as well as Fig.14 Furthermore, the engineering machinery radiator welding device 100 also includes a first driving mechanism 80 and a first guiding mechanism 90. The first driving mechanism 80 is used to be connected to the movable member 52 in a transmission manner to drive the movable member 52 to move, so that the movable member 52 can move relative to the fixed member 51, and the first guiding mechanism 90 includes a first slide rail 92 and a first slider 91. The first slide rail 92 is provided on the machine platform 10 and extends in a direction perpendicular to the extension direction of the main pipe 200. The first slider 91 is fixedly connected to the movable member 52 and is slidably provided on the first slide rail 92. In this way, the automatic movement of the movable member 52 can be realized while improving the movement accuracy of the movable member 52.

[0077] Please refer to Figures 1 to 4 In some embodiments, the engineering machinery heat sink welding device 100 further includes a manipulator mechanism 60 , and the manipulator mechanism 60 is disposed on the machine platform 10 .

[0078] The manipulator mechanism 60 can be selectively connected to one of the cutting mechanism 20 and the welding mechanism 30. Specifically, when performing cutting work, the cutting mechanism 20 can be connected and installed with the manipulator mechanism 60. After the cutting work is completed, the cutting mechanism 20 can be removed from the manipulator mechanism 60 and replaced with the welding mechanism 30 to perform subsequent welding work. In this way, the equipment cost of the engineering machinery radiator welding device 100 is relatively low, reducing the cost of the device itself.

[0079] Alternatively, the manipulator mechanism 60 includes two, and one of the two manipulator mechanisms 60 is connected to the cutting mechanism 20, and the other is connected to the welding mechanism 30. Specifically, when the cutting work is performed, the manipulator mechanism 60 connected to the cutting mechanism 20 will start to move, drive the cutting mechanism 20 to move, and complete the cutting work. After the cutting work is completed, the manipulator mechanism 60 connected to the welding mechanism 30 will start to work, drive the welding mechanism 30 to move, and complete the welding work. In this way, the efficiency of the engineering machinery radiator welding device 100 is higher, and the welding efficiency of the workshop is effectively improved.

[0080] Thus, the present invention can realize the operation of automatic cutting and welding by providing the manipulator mechanism 60 , which has high working efficiency and can improve the processing accuracy to ensure the welding quality of the main pipe 200 and the branch pipe 300 .

[0081] Please refer to Figure 1 and Fig.14 In some embodiments, the engineering machinery heat sink welding device 100 further includes a movable plate 70 , the movable plate 70 is disposed on the machine platform 10 , and the fixing mechanism 50 is installed on the movable plate 70 .

[0082] The movable plate 70 can move relative to the machine platform 10 along the extending direction of the main pipe 200 , so as to drive the fixing mechanism 50 to move relative to the robot mechanism 60 .

[0083] It can be understood that the engineering machinery radiator welding device 100 further includes a second driving mechanism 81 and a second guiding mechanism 93. The second driving mechanism 81 is provided on the machine platform 10 and is transmission-connected with the movable plate 70 to drive the movable plate 70 to move, so that the movable plate 70 can move relative to the machine platform 10. The second guiding mechanism 93 includes a second slider 94 and a second slide rail 95. The second slide rail 95 is installed on the machine platform 10 and extends along the extension direction of the main pipe 200. The second slider 94 is fixedly connected to the movable plate 70 and is slidably provided on the second slide rail 95, so that the movable plate 70 can be accurately moved along the moving direction of the main pipe 200.

[0084] In the actual processing process, the movable plate 70 drives the fixing mechanism 50 to move, so the main pipe 200 located in the clamping space 50A will also move accordingly. It can be understood that the branch pipe 300 usually includes multiple branches, and the multiple branch pipes 300 move along the extension direction of the main pipe 200, wherein the multiple branch pipes 300 need to be welded with the main pipe 200. Therefore, after welding one of the branch pipes 300, the movable plate 70 drives the fixing mechanism 50 to move, so that the manipulator mechanism 60 can continue to control the welding mechanism 30 to weld the next branch pipe 300 without moving significantly, which is convenient and fast to operate, and greatly improves the processing efficiency.

[0085] In summary, the specific working process of the engineering machinery radiator welding device 100 of the present invention is as follows:

[0086] First, the main tube 200 is placed in the clamping space 50A formed by the fixing mechanism 50, and the clamping space 50A is reduced by the movement of the movable member 52 to clamp the main tube 200. After the clamping is completed, the robot mechanism 60 drives the cutting mechanism 20 to cut the via hole 210 of the main tube 200 to form a plurality of discharge grooves 220, and the support member 40 is connected to the main tube 200, and then the branch tube 300 is inserted into the via hole 210, and the solder 400 is placed in each discharge groove 220. After placing the solder 400, the robot mechanism 60 drives the welding mechanism 30 to move, and first performs welding operation on one of the branch pipes 300 and the main pipe 200. After welding is completed, the movable plate 70 is moved so that the welding mechanism 30 corresponds to the welding position of another branch pipe 300 and the main pipe 200, and then the welding mechanism 30 starts to perform welding operation on the branch pipe 300 and the main pipe 200, and so on, until all the branch pipes 300 and the main pipe 200 are welded. After welding is completed, the clamping space 50A is enlarged by the movement of the movable member 52, thereby releasing the main pipe 200, and then the main pipe 200 welded with multiple branch pipes 300 is taken out, completing the complete working process.

[0087] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0088] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A welding device for a radiator of an engineering machinery, suitable for welding a branch pipe (300) of a radiator of an engineering machinery to a main pipe (200), wherein the main pipe (200) has a through hole (210) for the branch pipe (300) to pass through, characterized in that: The engineering machinery radiator welding device comprises: Machine (10); a cutting mechanism (20), arranged on the machine platform (10), and used for cutting the side wall of the via hole (210) to form a plurality of discharge grooves (220), wherein the plurality of discharge grooves (220) are arranged at intervals along the circumference of the via hole (210), and the plurality of discharge grooves (220) have different sizes, and the discharge grooves (220) are used for placing solder (400) adapted thereto; and: A welding mechanism (30) is arranged on the machine platform (10), comprising a welding pipe (31), wherein the welding pipe (31) is used to surround the outer sides of the plurality of discharge troughs (220); The welding pipe (31) is capable of simultaneously heating all the solders (400) so that all the solders (400) are melted by the heat, allowing the branch pipe (300) to pass through the main pipe (200) and be welded to the wall of the discharge trough (220); The material discharge trough (220) comprises at least a first material trough (230) and a second material trough (240), wherein the size of the first material trough (230) is larger than the size of the second material trough (240); the welded pipe (31) encloses an annular area (311), and the contour edge of the annular area (311) comprises at least: a first edge segment (3111), corresponding to the first material groove (230) in the circumferential direction of the through hole (210); and: A second edge segment (3112) corresponding to the second material groove (240) in the circumferential direction of the through hole (210); Wherein, along the radial direction of the through hole (210), the distance from the first edge segment (3111) to the first material groove (230) is smaller than the distance from the second edge segment (3112) to the second material groove (240); The shape of the annular area (311) is elliptical; The curvature of the first edge segment (3111) is smaller than the curvature of the second edge segment (3112), so that in the radial direction of the through hole (210), the distance from the first edge segment (3111) to the first material groove (230) is smaller than the distance from the second edge segment (3112) to the second material groove (240); The welding mechanism (30) further comprises a welding body (32), and the welding pipe (31) comprises a first pipe section (312) and a second pipe section (313) connected to each other; The first pipe section (312) comprises: A first connecting portion (3121), one end of which is connected to the welding body (32); and A first surrounding portion (3122) is connected to an end of the first connecting portion (3121) away from the welding body (32) and is arranged in an arc shape; The second pipe section (313) comprises: A second connecting portion (3131), one end of which is connected to the welding body (32); and A second surrounding portion (3132) is connected to an end of the second connecting portion (3131) away from the welding body (32), and is connected to an end of the first surrounding portion (3122) away from the first connecting portion (3121), and the second surrounding portion (3132) is arranged in an arc shape; Wherein, the first surrounding portion (3122) and the second surrounding portion (3132) cooperate to form the annular area (311).

2. The construction machinery radiator welding device according to claim 1, characterized in that: The welding mechanism (30) further comprises: The nitrogen pipe (33) has a nitrogen port, and the nitrogen port is arranged toward the annular area (311), wherein the nitrogen in the nitrogen pipe (33) is sprayed toward the annular area (311) through the nitrogen port.

3. The engineering machinery radiator welding device according to claim 1, characterized in that: Also includes: A support member (40) is disposed inside the main pipe (200) and includes a support portion (43); Wherein, along the radial direction of the main pipe (200), the support portion (43) is located on the inner side of the through hole (210) and is used to support the branch pipe (300).

4. The engineering machinery radiator welding device according to claim 3, characterized in that: The cutting mechanism (20) further cuts the hole wall of the through hole (210) to form a chamfer (250), and along the radial direction of the main pipe (200), the chamfer (250) is located on the inner side of the discharge groove (220), and the support member (40) further includes: The enclosing portion (44) is arranged around the supporting portion (43), and the top thereof cooperates with the wall surface of the chamfer (250) to form a material storage trough (44A).

5. The engineering machinery radiator welding device according to any one of claims 1 to 4, characterized in that: Also includes: A fixing mechanism (50) is arranged on the machine platform (10), comprising a fixing part (51) and a movable part (52), wherein the fixing part (51) cooperates with the movable part (52) to form a clamping space (50A), and the clamping space (50A) is used to accommodate the main pipe (200); The movable member (52) is movable relative to the fixed member (51) to move closer to or farther away from the fixed member (51), thereby correspondingly clamping or releasing the main pipe (200).

6. The engineering machinery radiator welding device according to claim 5, characterized in that: It also includes a robot mechanism (60), wherein the robot mechanism (60) is arranged on the machine platform (10); Wherein, the manipulator mechanism (60) can be selectively connected to one of the cutting mechanism (20) and the welding mechanism (30); Alternatively, the robot mechanism (60) includes two robot mechanisms, and one of the two robot mechanisms (60) is connected to the cutting mechanism (20), and the other is connected to the welding mechanism (30).

7. The engineering machinery radiator welding device according to claim 6, characterized in that: Also includes: A movable plate (70) is disposed on the machine platform (10), and the fixing mechanism (50) is installed on the movable plate (70); Wherein, along the extension direction of the main pipe (200), the movable plate (70) can move relative to the machine platform (10) to drive the fixing mechanism (50) to move relative to the robot mechanism (60).

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