Welding pressing assembly and welding pressing system

Abstract

The utility model discloses a welding pressing assembly and a welding pressing system, the welding pressing assembly comprises a non-metal pressing piece and a heat dissipation piece, the non-metal pressing piece is connected to a liftable gripper, the non-metal pressing piece is used for pressing a top cover, the heat dissipation piece is connected to the gripper, and the heat dissipation piece is used for being in contact with the top cover. The hardness of the non-metal pressing piece is smaller than that of the heat dissipation piece, and the lower surface of the non-metal pressing piece is lower than that of the heat dissipation piece. In the embodiment of the utility model, the hardness of the non-metal pressing piece is relatively small, and when the non-metal pressing piece and the top cover are overpressed, a pit cannot be pressed on the top cover, so that the surface quality defect of the pit on the top cover can be avoided, and the surface quality of the top cover can be improved on the premise of ensuring the welding quality.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle welding technical field especially, relates to a kind of welding pressure assembly and welding pressure system. BACKGROUND

[0002] When roof and side wall are welded in body-in-white, roof is usually pressed by roof welding gripper to ensure that the gap of roof and side wall matching part meets the requirement.

[0003] At present, roof welding gripper includes metal pressing block, metal pressing block directly presses roof, and metal pressing block also has the functions of heat dissipation and heat conduction. However, the hardness of metal pressing block is high, and when metal pressing block is over-pressed on roof, it is easy to cause roof to have surface quality defect of pit. SUMMARY

[0004] The utility model provides a kind of welding pressure assembly and welding pressure system, to at least solve the technical problem that metal pressing block and roof are over-pressed in prior art, and it is easy to cause roof to have surface quality defect of pit.

[0005] In the first aspect of the utility model implementation, first provide a kind of welding pressure assembly, comprising:

[0006] Non-metal pressing part, connected on liftable gripper, the non-metal pressing part is used to press roof;

[0007] Heat dissipation part, connected on the gripper, the heat dissipation part is used to contact with the roof;

[0008] Wherein, the hardness of the non-metal pressing part is less than the hardness of the heat dissipation part, and the lower surface of the non-metal pressing part is lower than the lower surface of the heat dissipation part.

[0009] Optionally, the Shore hardness of the non-metal pressing part is greater than or equal to 30 degrees, and less than or equal to 40 degrees.

[0010] Optionally, the material of the non-metal pressing part is any one of polyurethane, rubber and flame-retardant foam.

[0011] Optionally, the welding pressure assembly further comprises a suction cup mechanism, the suction cup mechanism comprises a suction cup, a suction cup hole is formed in the non-metal pressing part, and the suction cup is located in the suction cup hole.

[0012] The lower surface of the suction cup is lower than or flush with the lower surface of the non-metal pressing part.

[0013] Optionally, the non-metal pressing part is located on the side of the heat dissipation part close to the gripper along the width direction of the heat dissipation part.

[0014] The distance between the non-metallic pressing member and the heat dissipation member along the width direction of the heat dissipation member is less than or equal to 10 mm.

[0015] Optionally, the welding and pressing assembly further comprises a protective plate, and the protective plate is located at at least one side of the non-metallic pressing member along the length direction and / or the width direction of the non-metallic pressing member.

[0016] Optionally, the welding and pressing assembly further comprises a first connecting frame and at least one gasket, and the gasket is located between the first connecting frame and the non-metallic pressing member, and the non-metallic pressing member and the gasket are detachably connected on the first connecting frame.

[0017] Optionally, the number of the non-metallic pressing members is multiple, and the multiple non-metallic pressing members are respectively located at two sides of the gripper along the width direction of the heat dissipation member.

[0018] The number of the heat dissipation members is multiple, and the multiple heat dissipation members are located at two sides of the gripper along the width direction of the heat dissipation member.

[0019] The number of the non-metallic pressing members located at one side of the gripper along the width direction of the heat dissipation member is at least two, and the at least two non-metallic pressing members are arranged at intervals along the length direction of the heat dissipation member.

[0020] Optionally, the material of the heat dissipation member is aluminum.

[0021] In the second aspect of the embodiment of the present application, a welding and pressing system is also provided, which comprises the welding and pressing assembly and a gripper connected with the welding and pressing assembly.

[0022] In the embodiment, the non-metallic pressing member can press the top cover, so that the gap between the top cover and the side wall can meet the requirements, and the welding quality can be ensured. In the embodiment, the hardness of the non-metallic pressing member is small, and when the non-metallic pressing member and the top cover are over-pressed, no dent will be pressed on the top cover, and the surface quality defect of the top cover can be avoided. Under the premise of ensuring the welding quality, the surface quality of the top cover can be improved, that is, the surface quality and the welding quality of the top cover can be considered. In addition, since the lower surface of the non-metallic pressing member is lower than the lower surface of the heat dissipation member, the heat dissipation member and the top cover can be prevented from being over-pressed, and the heat dissipation member can be prevented from pressing a dent on the top cover. In addition, the cost of rework due to surface quality defects can be saved, and manual monitoring of whether the top cover has a dent can be avoided, and the cost of manual monitoring can be saved. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical schemes in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below.

[0024] Figure 1 A structure schematic view of the welding and pressing assembly is provided for the embodiment of the present application.

[0025] Figure 2 A structure schematic view of the non-metal pressing part, the suction cup, the baffle, the gasket and the first connecting frame in the welding and pressing assembly is provided for the embodiment of the present application.

[0026] Figure 3 A structure schematic view of the welding and pressing system is provided for the embodiment of the present application.

[0027] Reference signs:

[0028] 1-non-metal pressing part, 2-heat dissipation part, 3-suction cup mechanism, 4-protection plate, 5-first connecting frame, 6-gasket, 7-connecting block, 8-grasping hand, 9-top cover. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described below with reference to the drawings.

[0030] The embodiments of the present application are used for explaining the present application, and are not used for limiting the scope of the present application. The present application is described in more detail in the following paragraphs with reference to the drawings. It should be noted that the drawings are very simplified and use non-precise proportions, and are only used for the purpose of conveniently and clearly assisting the description of the embodiments of the present application.

[0031] At present, the top cover welding grasping hand includes a metal pressing block, the metal pressing block directly presses the top cover, and the metal pressing block also has the functions of heat dissipation and heat conduction. However, the hardness of the metal pressing block is high, and when the metal pressing block is over-pressed with the top cover, the top cover is prone to have a surface quality defect of a pit. In order to solve the above problem, the embodiments of the present application provide a welding and pressing assembly and a welding and pressing system, and the welding and pressing assembly and the welding and pressing system mentioned above will be described in detail below.

[0032] In a first aspect, with reference to Figure 1 and Figure 2 The welding and pressing assembly provided by the embodiments of the present application includes a non-metal pressing part 1 and a heat dissipation part 2, the non-metal pressing part 1 is connected to a liftable grasping hand 8, the non-metal pressing part 1 is used for pressing a top cover 9, the heat dissipation part 2 is connected to the grasping hand 8, the heat dissipation part 2 is used for contacting the top cover 9, the hardness of the non-metal pressing part 1 is less than the hardness of the heat dissipation part 2, and the lower surface of the non-metal pressing part 1 is lower than the lower surface of the heat dissipation part 2.

[0033] The welding pressure assembly is used for pressing the roof when the roof 9 is welded with the side wall in the vehicle. The welding manner of the roof and the side wall is specifically laser welding. The non-metallic pressure part 1 and the heat dissipation part 2 can be in a block structure. The material of the non-metallic pressure part 1 is non-metallic, for example, plastic, rubber, fireproof foam and the like. The material of the heat dissipation part 2 is generally metal, for example, aluminum, copper and the like. The heat dissipation part 2 plays a role of heat dissipation and heat conduction. During the welding process, heat is generated, and the heat concentrated on the roof 9 can affect the surface quality of the roof 9. In the embodiment, the heat dissipation part 2 can disperse and conduct the heat concentrated on the roof 9, so as to avoid the surface quality of the roof 9 from being affected due to the heat concentrated on the roof 9.

[0034] The hardness of the non-metallic pressure part 1 is relatively small. During the process that the non-metallic pressure part 1 presses the roof 9, the lower surface of the non-metallic pressure part 1 can be elastically deformed upward, so that the non-metallic pressure part 1 can press the roof 9 into place, and the heat dissipation part 2 can be in contact with the roof 9. The height difference between the lower surface of the non-metallic pressure part 1 and the lower surface of the heat dissipation part 2 satisfies that the heat dissipation part 2 is in contact with the roof 9 when the non-metallic pressure part 1 presses the roof 9 into place, so as to ensure that the heat dissipation part 2 will not be over-pressed with the roof 9. It should be noted that the height difference between the lower surface of the non-metallic pressure part 1 and the lower surface of the heat dissipation part 2 is generally small, and the height difference between the lower surface of the non-metallic pressure part 1 and the lower surface of the heat dissipation part 2 is affected by the hardness of the non-metallic pressure part 1, and the height difference between the lower surface of the non-metallic pressure part 1 and the lower surface of the heat dissipation part 2 is not limited herein.

[0035] When the gripper 8 is lowered, the non-metallic pressure part 1 and the heat dissipation part 2 are lowered together. Since the lower surface of the non-metallic pressure part 1 is lower than the lower surface of the heat dissipation part 2, the non-metallic pressure part 1 can first contact the roof 9 during the lowering process. Then, the gripper 8 continues to be lowered, the non-metallic pressure part 1 presses the roof 9, and the non-metallic pressure part 1 presses the roof 9 into place. After that, the gripper 8 stops lowering, and the heat dissipation part 2 is in contact with the roof 9.

[0036] When the roof is welded with the side wall, the gap at the matching position of the roof and the side wall directly affects the welding quality of the roof. For example, the gap at the matching position of the roof and the side wall is generally required to be within 0.3 mm. If the roof is not pressed, the gap at the matching position of the roof and the side wall can be greater than 0.3 mm, thereby there is a risk of poor welding. In the embodiment, the non-metallic pressure part 1 can press the roof 9, so as to ensure that the gap at the matching position of the roof 9 and the side wall meets the requirements, thereby ensuring the welding quality.

[0037] In the related art, in order to ensure that the gap at the matching position of the top cover and the side wall meets the requirements, the metal pressing block is over-pressed with the top cover, thereby easily causing the surface quality defect of the top cover, i.e., a dent, and the work needs to be returned after the surface quality defect occurs. In the embodiment, the hardness of the non-metal pressing member 1 is relatively small, and the non-metal pressing member 1 will not press a dent on the top cover 9 when the non-metal pressing member 1 is over-pressed with the top cover 9, thereby avoiding the surface quality defect of the top cover 9, i.e., a dent, and improving the surface quality of the top cover under the premise of ensuring the welding quality, that is, the surface quality and the welding quality of the top cover can be considered. In addition, since the lower surface of the non-metal pressing member 1 is lower than the lower surface of the heat dissipation member 2, the heat dissipation member 2 can be prevented from being over-pressed with the top cover 9, thereby avoiding the heat dissipation member 2 from pressing a dent on the top cover 9. In addition, the cost of returning work due to the surface quality defect can be saved, and manual monitoring of whether the top cover 9 has a dent is not required, thereby saving the cost of manual monitoring.

[0038] In an optional embodiment of the present application, the Shore hardness of the non-metal pressing member 1 is greater than or equal to 30 degrees and less than or equal to 40 degrees. The Shore hardness refers to the hardness measured by a Shore hardness tester. Specifically, the Shore hardness can be Shore hardness A, which refers to the hardness measured by a Shore A hardness tester. The Shore hardness of the non-metal pressing member 1 can be 30 degrees, 32 degrees, 35 degrees, 38 degrees, 40 degrees, etc. The Shore hardness of the non-metal pressing member 1 is preferably 30 degrees. In the embodiment, the Shore hardness of the non-metal pressing member 1 is relatively small, which can effectively prevent the non-metal pressing member 1 from pressing a dent on the top cover 9.

[0039] In an optional embodiment of the present application, the material of the non-metal pressing member 1 is any one of polyurethane, rubber, and flame-retardant foam. Polyurethane has high elasticity and fatigue resistance, and polyurethane has good thermal stability and can withstand high temperatures during welding. The material of the non-metal pressing member 1 is preferably polyurethane. Rubber has excellent elastic recovery, and some types of rubber have flame retardancy. Flame-retardant foam is relatively soft and has excellent fireproof performance, which can effectively reduce the risk of fire in a high-temperature welding environment.

[0040] In an optional embodiment of the present application, the welding pressing assembly further comprises a suction cup mechanism 3, the suction cup mechanism 3 comprises a suction cup, a suction cup hole is formed in the non-metal pressing member 1, and the suction cup is located in the suction cup hole; the lower surface of the suction cup is lower than or flush with the lower surface of the non-metal pressing member 1.

[0041] The suction cup hole penetrates the non-metallic pressing part 1 along the height direction of the non-metallic pressing part 1. Since the top cover 9 has a certain streamline shape, when the lower surface of the planar non-metallic pressing part 1 directly presses the top cover 9, there may be a part of the lower surface of the non-metallic pressing part 1 that does not press the top cover 9. In the embodiment, before pressing, the suction cup first adsorbs the top cover 9 upward, so that the top cover is attached to the lower surface of the non-metallic pressing part 1, and then the suction cup and the non-metallic pressing part 1 are lowered together to press the top cover 9, so that the pressing area of the non-metallic pressing part 1 on the top cover 9 can be ensured during the pressing process.

[0042] In an optional embodiment of the present application, the non-metallic pressing part 1 is located on the side of the heat dissipation part 2 close to the gripper 8 along the width direction of the heat dissipation part 2, and the distance between the non-metallic pressing part 1 and the heat dissipation part 2 along the width direction of the heat dissipation part 2 is less than or equal to 10 mm.

[0043] In the present application, the width direction of the heat dissipation part 2 can refer to the direction indicated by the A arrow in Figure 1 and Figure 3 . The distance between the non-metallic pressing part 1 and the heat dissipation part 2 along the width direction of the heat dissipation part 2 can be 5 mm, 6 mm, 7 mm, 8 mm, 10 mm, etc. In the present embodiment, the non-metallic pressing part 1 is located on the inner side of the heat dissipation part 2, and the heat dissipation part 2 is located on the outer side of the non-metallic pressing part 1. The heat dissipation part 2 is closer to the joint of the top cover 9 and the side wall, that is, the heat dissipation part 2 is closer to the heat source position, and the heat can be effectively dissipated and conducted through the heat dissipation part 2. In addition, the non-metallic pressing part 1 is close to the heat dissipation part 2, so that the non-metallic pressing part 1 can be as close as possible to the joint of the top cover 9 and the side wall to ensure the pressing effect on the top cover 9.

[0044] In an optional embodiment of the present application, the welding and pressing assembly further comprises a protective plate 4, which is located on at least one side of the non-metallic pressing part 1 along the length direction and / or the width direction of the non-metallic pressing part 1. The material of the protective plate 4 can be metal, such as steel, aluminum, etc. The material of the protective plate 4 can also be non-metal with protective properties, such as ceramic material, polytetrafluoroethylene, etc. The protective plate 4 is preferably located on the side of the non-metallic pressing part 1 close to the heat dissipation part 2 along the width direction of the non-metallic pressing part 1. The width direction of the non-metallic pressing part 1 is parallel to the width direction of the heat dissipation part 2. In the present embodiment, the protective plate 4 has a protective effect, which can block or reduce the heat transferred to the non-metallic pressing part 1, can improve the service life of the non-metallic pressing part 1, and can avoid the influence of the heat generated during welding on the service life of the non-metallic pressing part 1.

[0045] In an optional embodiment of the present application, the welding and pressing assembly further comprises a first connecting frame 5 and at least one gasket 6, the gasket 6 is located between the first connecting frame 5 and the non-metallic pressing part 1, and the non-metallic pressing part 1 and the gasket 6 are detachably connected to the first connecting frame 5.

[0046] The suction cup mechanism 3 can be mounted on the first connecting frame 5. The first connecting frame 5 is provided with a first through hole, and the gasket 6 is provided with a second through hole. The positions of the first through hole and the second through hole correspond to the position of the suction cup hole. The first through hole and the second through hole are used to avoid the suction cup mechanism 3. The non-metallic pressing part 1 and the gasket 6 can be connected to the first connecting frame 5 by bolts. In this embodiment, by increasing or decreasing the number of gaskets 6, the up-down position of the non-metallic pressing part 1 can be adjusted, so that the non-metallic pressing part 1 can adapt to different welding scenes.

[0047] The non-metallic pressing part 1 is connected to the gripper 8 through the first connecting frame 5. The welding pressing assembly can further include a connecting block 7 and a second connecting frame. The heat dissipation part 2 is connected to the gripper 8 through the connecting block 7 and the second connecting frame. The first connecting frame 5 and the second connecting frame can be connected to the gripper 8 by bolts. The heat dissipation part 2 and the connecting block 7 can be connected by bolts, and the connecting block 7 and the second connecting frame can be connected by bolts.

[0048] In an optional embodiment of the present application, the number of non-metallic pressing parts 1 is multiple, and the multiple non-metallic pressing parts 1 are located on both sides of the gripper 8 along the width direction of the heat dissipation part 2. The number of heat dissipation parts 2 is multiple, and the multiple heat dissipation parts 2 are located on both sides of the gripper 8 along the width direction of the heat dissipation part 2. The number of non-metallic pressing parts 1 located on one side of the gripper 8 along the width direction of the heat dissipation part 2 is at least two, and the at least two non-metallic pressing parts 1 are arranged in the length direction of the heat dissipation part 2.

[0049] In this embodiment, the multiple non-metallic pressing parts 1 are located on both sides of the gripper 8 along the width direction of the heat dissipation part 2, and the multiple heat dissipation parts 2 are located on both sides of the gripper 8 along the width direction of the heat dissipation part 2, so that the top cover 9 on both sides along the width direction of the heat dissipation part 2 can be pressed at the same time. In addition, the number of non-metallic pressing parts 1 located on one side of the gripper 8 along the width direction of the heat dissipation part 2 is at least two, which can make the non-metallic pressing part 1 better fit the top cover 9 compared with a single large non-metallic pressing part 1, so as to ensure the pressing effect of the non-metallic pressing part 1 and the top cover 9.

[0050] In an optional embodiment of the present application, the material of the heat dissipation part 2 is aluminum or aluminum alloy. The Brinell hardness of the heat dissipation part 2 can be 20HB-120HB. Aluminum or aluminum alloy has high thermal conductivity, which can quickly and effectively conduct the heat generated during welding from the top cover 9, and the density of aluminum or aluminum alloy is relatively low, which is beneficial to the lightweight of the welding pressing assembly.

[0051] In a second aspect, with reference to Figure 3The utility model embodiment provides a kind of welding pressure system, welding pressure system includes the first aspect provided welding pressure assembly and the gripper 8 connected with welding pressure assembly.Welding pressure assembly includes nonmetallic pressure part 1 and heat sink 2, nonmetallic pressure part 1 is connected on liftable gripper 8, nonmetallic pressure part 1 is used to compact top cover 9, heat sink 2 is connected on gripper 8, heat sink 2 is used to contact with top cover 9, the hardness of nonmetallic pressure part 1 is less than the hardness of heat sink 2, the lower surface of nonmetallic pressure part 1 is lower than the lower surface of heat sink 2.

[0052] Because welding pressure system includes above-mentioned welding pressure assembly, therefore also has the beneficial effects of above-mentioned welding pressure assembly, here no longer repeat.

[0053] It should be noted that in this document, relationship terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0054] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. When an element is referred to as being "positioned" on another element, it can be directly on the other element or intervening elements can also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are used for illustration only and do not limit the position of the element.

[0055] Each of the various embodiments in the specification is described in a relevant manner, and the same and similar parts between each embodiment can be referred to each other, and each embodiment focuses on the difference from other embodiments. Especially, for system embodiment, since it is basically similar to method embodiment, the description is relatively simple, and the relevant part can refer to the part of the description of method embodiment.

[0056] The above are only preferred embodiments of the present application, and are not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0057] The welding and pressing assembly and the welding and pressing system provided by the present application are described in detail above, and the principles and implementation manners of the present application are described by applying specific examples. The above description of the embodiments is only used to help understand the structure of the present application and its core idea; meanwhile, for the general technical personnel in the field, the specific implementation manners and application ranges will be changed according to the idea of the present application. In conclusion, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A welding hold down assembly comprising: The welding compression assembly comprises: a non-metal compression member connected to the liftable gripper, the non-metal compression member being used to compress the top cover; a heat dissipation member connected to the gripper, the heat dissipation member being used to contact the top cover; wherein the hardness of the non-metal compression member is less than the hardness of the heat dissipation member, and the lower surface of the non-metal compression member is lower than the lower surface of the heat dissipation member.

2. The welding hold down assembly of claim 1, wherein, The Shore hardness of the non-metal compression member is greater than or equal to 30 degrees and less than or equal to 40 degrees.

3. The welding hold down assembly of claim 1, wherein, The material of the non-metal compression member is any one of polyurethane, rubber, and flame-retardant foam.

4. The welding clamping assembly according to any one of claims 1 to 3, characterized in that The welding compression assembly further comprises a suction cup mechanism, the suction cup mechanism comprising a suction cup, a suction cup hole being formed in the non-metal compression member, and the suction cup being located in the suction cup hole. The lower surface of the suction cup is lower than or flush with the lower surface of the non-metal compression member.

5. The welding clamping assembly according to any one of claims 1 to 3, characterized in that The non-metal compression member is located on the side of the heat dissipation member close to the gripper along the width direction of the heat dissipation member. The distance between the non-metal compression member and the heat dissipation member along the width direction of the heat dissipation member is less than or equal to 10 millimeters.

6. The welding clamping assembly according to any one of claims 1 to 3, characterized in that The welding compression assembly further comprises a protective plate, the protective plate being located on at least one side of the non-metal compression member along the length direction and / or the width direction of the non-metal compression member.

7. The welding clamping assembly according to any one of claims 1 to 3, characterized in that The welding compression assembly further comprises a first connecting frame and at least one gasket, the gasket being located between the first connecting frame and the non-metal compression member, and the non-metal compression member and the gasket being detachably connected to the first connecting frame.

8. The welding hold-down assembly of any of claims 1-3, wherein, The number of the non-metal compression members is multiple, and the multiple non-metal compression members are respectively located on both sides of the gripper along the width direction of the heat dissipation member. The number of the heat dissipation members is multiple, and the multiple heat dissipation members are located on both sides of the gripper along the width direction of the heat dissipation member. The number of the non-metal compression members located on one side of the gripper along the width direction of the heat dissipation member is at least two, and the at least two non-metal compression members are arranged at intervals along the length direction of the heat dissipation member.

9. The welding clamping assembly according to any one of claims 1 to 3, characterized in that The material of the heat dissipation member is aluminum or aluminum alloy.

10. A welding hold down system characterized by, The welding compression assembly comprises the welding compression assembly according to any one of claims 1 to 9 and the gripper connected to the welding compression assembly.

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