Plate arc-shaped surface welding tool

Abstract

A plate arc-shaped face welding tool comprises a base frame and a die holder connected to the base frame, the die holder is provided with a forming face, and the base frame is provided with a first support and a second support. The first driving part and the second driving part are connected to the first support, the second driving part and the third driving part are connected to the first support, the third driving part is connected to the second support, and the first driving part, the second driving part and the third driving part are used for sequentially driving the first pressing part to press the side wall of the die holder. The second pressing piece presses the forming face, and the third pressing piece presses the upper wall of the die holder. According to the scheme, the first pressing piece and the second pressing piece are matched with the forming face to achieve bending of the metal side plate, meanwhile, accurate splicing of the metal cover plate and the bent side edge of the metal side plate is achieved through the third pressing piece, the machining efficiency is greatly improved, and the welding quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of welding tools, and in particular to a welding tool for arc-shaped surfaces of plates. Background Art

[0002] In the process of metal sheet processing, the welding of curved or arc-shaped sheets is sometimes involved. For example, the kitchen sink is welded with metal side panels around the metal cover. The metal side panel needs to be bent to a suitable angle on one side by a bending machine, and then the metal side panel is transferred to the welding station for splicing with the metal cover. Finally, the welding gun is used to weld the bent side of the metal side panel to the metal cover. The welding quality between the bent side of the metal side panel and the metal cover directly affects whether the sink will leak, and whether the structural strength and mechanical properties of the sink meet the requirements.

[0003] However, how to ensure the welding quality of the curved side of the metal side panel has always been a difficult point in the welding process. On the one hand, since one side of the metal side panel is curved, there is a tendency for deviations to occur when manually welding the curved side of the metal side panel to the metal cover plate, resulting in unstable welding quality; on the other hand, the curved side of the metal side panel may be deformed secondary during the process of unloading the metal side panel from the bending machine or during transportation, which causes the curved side of the metal side panel to be unable to be aligned when being spliced ​​with the metal cover plate at the welding station, and also causes the welding quality to be unable to be guaranteed. If the welding quality of the curved side of the metal side panel and the metal cover plate cannot be guaranteed, it will lead to reduced structural strength and mechanical properties of the water basin, and there are hidden dangers such as easy leakage during actual use. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the welding quality of the curved side of the metal side plate and the metal cover plate in the prior art cannot be guaranteed, resulting in reduced structural strength and mechanical properties of the water basin, and the existence of hidden dangers such as easy leakage in actual use.

[0005] In order to solve the above problems, the present invention provides a plate arc surface welding tool, comprising a base frame and a die base connected to the base frame, wherein the junction between the upper wall and the side wall of the die base has a molding surface, and the base frame is provided with a first bracket extending to the side position of the die base and a second bracket extending to the upper position of the die base; and further comprising:

[0006] A first limiting assembly includes a first pressing member and a first driving member connected to the first bracket, wherein an output end of the first driving member is arranged toward a side wall of the mold base, and the first pressing member is connected to the output end of the first driving member;

[0007] The second limiting assembly includes a second pressing member and a second driving member connected to the first bracket, wherein the output end of the second driving member is arranged toward the forming surface, the second pressing member is connected to the output end of the second driving member, and the second pressing member is provided with an arc groove having a shape matching the forming surface on one side facing the forming surface;

[0008] A third limiting assembly includes a third pressing member and a third driving member connected to the second bracket, wherein the output end of the third driving member is arranged toward the upper wall of the mold base, and the third pressing member is connected to the output end of the third driving member;

[0009] The first driving member, the second driving member and the third driving member are used to sequentially drive the first pressing member to press against the side wall of the die base, the second pressing member to press against the forming surface, and the third pressing member to press against the upper wall of the die base; when the second pressing member is pressed against the forming surface and the third pressing member is pressed against the upper wall of the die base, a distance is left between the second pressing member and the third pressing member to form a working area for welding.

[0010] In the above scheme, the upper wall of the mold base is used to place the metal cover plate, the side wall of the mold base is used to place the metal side plate, and the forming surface of the mold base corresponds to the part of the metal side plate that needs to be bent; when operation is required, the first driving member first drives the first pressing member to press against the side wall of the mold base, so that the first pressing member fixes the metal side plate, and then the second driving member drives the second pressing member to press against the forming surface. At this time, the corresponding position of the metal side plate is attached to the forming surface and bent. Finally, the third driving member drives the third pressing member to press against the upper wall of the mold base to ensure the accurate splicing of the metal cover plate and the curved side of the metal side plate. At this time, the working area between the second pressing member and the third pressing member can be welded. Compared with the prior art, the above scheme realizes the bending of the metal side panel through the cooperation of the first pressing member and the second pressing member with the forming surface, and realizes the accurate splicing of the curved side edges of the metal cover plate and the metal side panel through the third pressing member, and the second pressing member and the third pressing member form a working area for stable welding, which not only greatly improves the processing efficiency but also ensures the welding quality, avoids the problem of manual deviation in welding the curved side edges of the metal cover plate and the metal side panel in the prior art, or the metal side panel cannot be aligned during splicing due to secondary deformation, resulting in the inability to guarantee the welding quality, so that the weld quality of the final processed water basin or similar products is good, not prone to water leakage and other problems, and the structural strength and mechanical properties are effectively improved.

[0011] In an improved solution, the second pressing member includes a heating block and an insulating block, the insulating block is connected to the output end of the second driving member, the heating block is connected to the side of the insulating block facing the forming surface, the arc groove is opened on the side of the heating block facing the forming surface, and the heating block has an electric heating function, so that the corresponding position of the metal side plate that needs to be bent is heated by the heating block, thereby improving the plasticity of the metal side plate and ensuring that the second pressing member is smoother in pushing the metal side plate to bend.

[0012] In an improved solution, a V-shaped groove is provided on the upper end surface of the heating block, and the direction of the V-shaped groove is parallel to the arc groove, so that the surface area of ​​the upper part of the heating block is increased while the volume is smaller, that is, the heat dissipation capacity of the upper part of the heating block is higher than that of the lower part. Since the upper part of the heating block is closer to the working area than the lower part, the heat can be dissipated faster when the welding of the working area is completed.

[0013] In an improved solution, an air pump is further included. The mold base is provided with a plurality of air outlets at positions corresponding to the working area. The air pump is connected to the air outlets through air pipes and is used to transport cooling gas to the air outlets, thereby achieving rapid cooling after welding is completed.

[0014] In an improved solution, the first driving member, the second driving member and the third driving member are all cylinders, which have good reliability.

[0015] In an improved solution, a buffer pad is provided on the side of the first pressing member facing the side wall of the die base, so as to prevent the first pressing member from causing damage to the metal side plate.

[0016] In an improved solution, it also includes a robot arm and a welding gun, the robot arm is used to drive the movement of the welding gun, and the welding gun is used to weld the workpiece in the working area. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the positions of a plate arc surface welding tool, a robot arm and a welding gun;

[0018] Figure 2 It is an overall schematic diagram of a plate arc surface welding tool;

[0019] Figure 3 It is a top view schematic diagram of a welding tool for curved surface of a plate;

[0020] Figure 4 For along Figure 3 Schematic cross-sectional view of the AA section line;

[0021] Figure 5 for Figure 4 A partial enlarged schematic diagram of area B in the middle.

[0022] Description of reference numerals:

[0023] 1. Base frame; 11. First bracket; 12. Second bracket; 2. Mold base; 21. Molding surface; 22. Air outlet; 3. First limiting assembly; 31. First pressing piece; 32. First driving piece; 4. Second limiting assembly; 41. Second pressing piece; 411. Heating block; 411a. Arc groove; 411b. V-shaped groove; 412. Insulating block; 42. Second driving piece; 5. Third limiting assembly; 51. Third pressing piece; 52. Third driving piece; 6. Working area; 7. Air pump; 8. Robot arm; 81. Welding gun. DETAILED DESCRIPTION

[0024] It should be understood by those skilled in the art that the following embodiments are only used to explain the technical principles of the embodiments of the present application and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art may adjust them as needed to adapt to specific application scenarios.

[0025] In the description of the following embodiments, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of this application can be understood according to specific circumstances.

[0026] In the embodiments of the present application, 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.

[0027] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] See also Figure 1-Figure 5 The embodiment of the present invention provides a plate arc surface welding tool, comprising a base frame 1 and a die base 2 connected to the base frame 1, the junction of the upper wall and the side wall of the die base 2 has a molding surface 21, the base frame 1 is provided with a first bracket 11 extending to the side position of the die base 2 and a second bracket 12 extending to the upper position of the die base 2; and further comprising:

[0029] The first limiting assembly 3 includes a first pressing member 31 and a first driving member 32 connected to the first bracket 11, the output end of the first driving member 32 is arranged toward the side wall of the mold base 2, and the first pressing member 31 is connected to the output end of the first driving member 32;

[0030] The second limiting assembly 4 includes a second pressing member 41 and a second driving member 42 connected to the first bracket 11, the output end of the second driving member 42 is arranged toward the molding surface 21, the second pressing member 41 is connected to the output end of the second driving member 42, and the second pressing member 41 is provided with an arc groove 411a having a shape matching the molding surface 21 on one side facing the molding surface 21;

[0031] The third limiting assembly 5 includes a third pressing member 51 and a third driving member 52 connected to the second bracket 12, wherein the output end of the third driving member 52 is arranged toward the upper wall of the mold base 2, and the third pressing member 51 is connected to the output end of the third driving member 52;

[0032] The first driving member 32, the second driving member 42, and the third driving member 52 are used to sequentially drive the first pressing member 31 to press against the side wall of the die base 2, the second pressing member 41 to press against the forming surface 21, and the third pressing member 51 to press against the upper wall of the die base 2; when the second pressing member 41 is pressed against the forming surface 21 and the third pressing member 51 is pressed against the upper wall of the die base 2, a spacing is left between the second pressing member 41 and the third pressing member 51 to form a working area 6 for welding.

[0033] In the above scheme, the upper wall of the die base 2 is used to place the metal cover plate, the side wall of the die base 2 is used to place the metal side plate, and the forming surface 21 of the die base 2 corresponds to the part of the metal side plate that needs to be bent; when operation is required, the first driving member 32 is used to drive the first pressing member 31 to press against the side wall of the die base 2, so that the first pressing member 31 fixes the metal side plate, and then the second driving member 42 drives the second pressing member 41 to press against the forming surface 21. At this time, the corresponding position of the metal side plate is attached to and bent by the forming surface 21. Finally, the third driving member 52 drives the third pressing member 51 to press against the upper wall of the die base 2 to ensure the accurate splicing of the metal cover plate and the curved side of the metal side plate. At this time, the working area 6 between the second pressing member 41 and the third pressing member 51 can be welded. Compared with the prior art, the above scheme realizes the bending of the metal side panel through the first pressure piece 31, the second pressure piece 41 cooperating with the forming surface 21, and realizes the accurate splicing of the metal cover plate and the curved side of the metal side panel through the third pressure piece 51. Not only the processing efficiency is greatly improved, but also the welding quality is ensured, avoiding the problem in the prior art that the metal side panel cannot be aligned during splicing due to secondary deformation, resulting in the inability to guarantee the welding quality.

[0034] In this embodiment, the mold base 2 is in a cubic shape, and has three molding surfaces 21 distributed on the front, left and right sides of the upper part of the mold base 2, wherein the front, left and right sides of the mold base 2 each have a first bracket 11, wherein the first brackets 11 on the left and right sides are provided with a first limiting component 3 and a second limiting component 4, and the first bracket 11 on the front side is only provided with a second limiting component 4.

[0035] In this embodiment, the second pressure piece 41 is a long strip corresponding to the molding surface 21. The second pressure piece 41 includes a heating block 411 and an insulation block 412. The insulation block 412 is connected to the output end of the second driving member 42. The insulation block is used to play an insulation role to prevent the heating block 411 from affecting the second driving member 42; the heating block 411 is connected to the side of the insulation block 412 facing the molding surface 21, and the arc groove 411a is opened on the side of the heating block 411 facing the molding surface 21. The heating block 411 has an electric heating function, so that the corresponding position of the metal side plate that needs to be bent is heated by the heating block 411, thereby improving the plasticity of the metal side plate and ensuring that the second pressure piece 41 is smoother when pushing the metal side plate to bend.

[0036] Furthermore, a V-shaped groove 411b is provided on the upper end surface of the heating block 411, and the long side direction of the V-shaped groove 411b is parallel to the long side direction of the arc groove 411a, so that the surface area of ​​the upper part of the heating block 411 is increased while the volume is smaller, that is, the heat dissipation capacity of the upper part of the heating block 411 is higher than that of the lower part. Since the upper part of the heating block 411 is closer to the working area 6 than the lower part, the heat can be dissipated faster when the welding of the working area 6 is completed.

[0037] Furthermore, it also includes an air pump 7, which is arranged inside the mold base 2. The mold base 2 is provided with a plurality of air outlet holes 22 at positions corresponding to the working area 6. The air pump 7 is connected to the air outlet holes 22 through an air pipe and is used to transport cooling gas to the air outlet holes 22, thereby achieving rapid cooling after welding is completed.

[0038] In this embodiment, the first driving member 32, the second driving member 42 and the third driving member 52 are preferably cylinders with good reliability; of course, they can also be oil cylinders or electric cylinders, etc., which is not limited in this design.

[0039] In this embodiment, a buffer pad is provided on one side of the first pressing member 31 facing the side wall of the mold base 2 , and the buffer pad is preferably made of rubber material, so as to prevent the first pressing member 31 from causing damage to the metal side plate.

[0040] In this embodiment, a robot arm 8 and a welding gun 81 are also included. The robot arm 8 is used to drive the movement of the welding gun 81, and the welding gun 81 is used to weld the workpiece in the working area 6.

[0041] It should be noted that, in the description of the present application, the terms "inside", "outside", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is merely for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present application. All directional indications (such as up, down, left, right, front, back, inside, and outside) are only used to explain the relative positional relationship, movement, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0042] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "in the present embodiment", "specific example", or "some examples" etc. means that the specific features, mechanisms, 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 representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0043] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A welding tool for curved plate surface, characterized in that: The invention comprises a base frame (1) and a mold base (2) connected to the base frame (1), wherein the junction between the upper wall and the side wall of the mold base (2) has a molding surface (21), and the base frame (1) is provided with a first bracket (11) extending to the side position of the mold base (2) and a second bracket (12) extending to the upper position of the mold base (2); and further comprises: A first limiting assembly (3), comprising a first pressing member (31) and a first driving member (32) connected to the first bracket (11), wherein an output end of the first driving member (32) is arranged toward a side wall of the mold base (2), and the first pressing member (31) is connected to the output end of the first driving member (32); A second limiting assembly (4), comprising a second pressing member (41) and a second driving member (42) connected to the first bracket (11), wherein an output end of the second driving member (42) is arranged toward the molding surface (21), the second pressing member (41) is connected to the output end of the second driving member (42), and an arc groove (411a) having a shape matching that of the molding surface (21) is provided on a side of the second pressing member (41) facing the molding surface (21); A third limiting assembly (5), comprising a third pressing member (51) and a third driving member (52) connected to the second bracket (12), wherein the output end of the third driving member (52) is arranged toward the upper wall of the mold base (2), and the third pressing member (51) is connected to the output end of the third driving member (52); The first driving member (32), the second driving member (42), and the third driving member (52) are used to sequentially drive the first pressing member (31) to press against the side wall of the die base (2), the second pressing member (41) to press against the forming surface (21), and the third pressing member (51) to press against the upper wall of the die base (2); when the second pressing member (41) is pressed against the forming surface (21) and the third pressing member (51) is pressed against the upper wall of the die base (2), a space is left between the second pressing member (41) and the third pressing member (51) to form a working area (6) for welding.

2. The arc-shaped plate surface welding tool according to claim 1 is characterized in that: The second pressing member (41) comprises a heating block (411) and a heat insulating block (412); the heat insulating block (412) is connected to the output end of the second driving member (42); the heating block (411) is connected to a side of the heat insulating block (412) facing the molding surface (21); the arc groove (411a) is provided on a side of the heating block (411) facing the molding surface (21); and the heating block (411) has an electric heating function.

3. The arc-shaped plate surface welding tool according to claim 2 is characterized in that: The upper end surface of the heating block (411) is provided with a V-shaped groove (411b), and the direction of the V-shaped groove (411b) is parallel to the arc-shaped groove (411a).

4. The arc-shaped plate surface welding tool according to any one of claims 1 to 3, characterized in that: It also includes an air pump (7). The mold base (2) is provided with a plurality of air outlet holes (22) at positions corresponding to the working area (6). The air pump (7) is connected to the air outlet holes (22) through air pipes and is used to transport cooling gas to the air outlet holes (22).

5. The arc-shaped plate surface welding tool according to claim 1, characterized in that: The first driving member (32), the second driving member (42) and the third driving member (52) are all cylinders.

6. The arc-shaped plate surface welding tool according to claim 1, characterized in that: A buffer pad is provided on one side of the first pressing piece (31) facing the side wall of the mold base (2).

7. The arc-shaped plate surface welding tool according to claim 1, characterized in that: It also comprises a mechanical arm (8) and a welding gun (81), wherein the mechanical arm (8) is used to drive the movement of the welding gun (81), and the welding gun (81) is used to weld workpieces in the working area (6).

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