Vehicle frame laser welding equipment

Abstract

The invention discloses vehicle frame laser welding equipment which comprises a laser welding head and further comprises a cover body fixedly arranged outside the laser welding head in a sleeving mode. The smoke suction pieces are arranged in a circumferential array mode, each smoke suction piece is rotationally arranged on the cover body, and each smoke suction piece communicates with the interior of the cover body; the number of the driving assemblies is equal to that of the smoke suction pieces, the positions of the driving assemblies correspond to that of the smoke suction pieces, and each driving assembly is used for driving the corresponding smoke suction piece to rotate and installed on the cover body; the guide pipeline is connected to one side of the cover body; the air exhaust assembly is arranged in the guide pipeline; heat dissipation of the laser welding head can be accelerated, and the welding quality is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile frame welding, and particularly to a frame laser welding device. Background Art

[0002] During the laser welding process of an automobile frame, when the laser welding head continuously performs welding operations, the laser welding head is prone to thermal deformation, which may cause deviations in the welding position, thereby affecting the welding quality. At the same time, a large amount of fumes are generated during the welding process. These fumes can affect the identification and detection of welds by industrial cameras and also affect the concentration of the laser. Summary of the Invention

[0003] The purpose of the present invention is to provide a frame laser welding device that can accelerate the heat dissipation of the laser welding head and can extract fumes at the same time.

[0004] To solve the above technical problems, the present invention provides the following technical solution: A frame laser welding device includes a laser welding head and further includes: a cover body fixedly sleeved outside the laser welding head; a plurality of smoking members, which are arranged in a circular array. Each smoking member is rotatably arranged on the cover body, and each smoking member communicates with the inside of the cover body; a driving component, the number of driving components is equal to and the positions correspond to the number of smoking members. Each driving component is used to drive the corresponding smoking member to rotate, and each driving component is installed on the cover body; a guiding pipeline connected to one side of the cover body; an air extraction component arranged inside the guiding pipeline; wherein, the smoking members cooperate with the laser welding head. The smoking members suck the fumes generated during the welding process of the laser welding head, and the smoking members are also used for heat exchange with the laser welding head.

[0005] Further, it further includes clamping grooves. A plurality of clamping grooves are arranged on the laser welding head and are arranged in a circular array; the number of clamping grooves is equal to the number of smoking members, and the clamping grooves cooperate with the smoking members. Each clamping groove is internally provided with a smoking member.

[0006] Further, the smoking member includes a guide post rotatably arranged on the cover body; a guiding hole is arranged inside the guide post, and the guiding hole penetrates the bottom end of the guide post. A plurality of exhaust ports are arranged on the part of the guide post located inside the cover body.

[0007] Further, the smoking member further includes a filtering member arranged in the guiding hole.

[0008] Further, the driving component includes: a connecting column fixedly connecting the top end of the guide post. The connecting column is rotatably arranged on the cover body, and the connecting column and the guide post are coaxial; a driving motor arranged on the outer wall of the cover body, and the output end of the driving motor is fixedly connected to the top end of the connecting column.

[0009] Further, the air extraction assembly includes at least one air extractor, which is installed inside the guiding pipeline.

[0010] Further, a part of the guide post is located outside the card slot.

[0011] Further, it further includes: a cooling cover, which is arranged inside the cover body and sleeved outside the laser welding head; an air intake assembly, which is arranged on the cooling cover; wherein, an opening is arranged on the cooling cover.

[0012] Further, the cooling cover includes: a cylindrical part, which is arranged on the cover body; a circular ring part, which is fixedly connected to the cylindrical part; wherein, the cylindrical part and the circular ring part are coaxial, and an opening is arranged on the cylindrical part.

[0013] Further, the air intake assembly includes: a first conduit, which is connected to the cylindrical part; a second conduit, which is connected to the first conduit and penetrates the cover body; a third conduit, which is connected to the second conduit, is located inside the cover body and outside the cylindrical part.

[0014] Compared with the prior art, the beneficial effects achieved by the present invention are as follows.

[0015] 1. The welding equipment of the present invention is applied to an intelligent welding system. Specifically, by sucking the flue gas through the guide post, the influence on the weld detection by industrial cameras and the like can be reduced; meanwhile, the guide post has a limiting effect on the laser welding head. When the laser welding head generates thermal deformation and contacts the guide post, the guide post rotates by driving the assembly, and the guide post generates a force on the laser welding head, which helps to avoid excessive deformation of the laser welding head and affect the welding quality.

[0016] 2. By arranging an air extractor, external air is introduced from the second conduit. A part of the air flow is introduced into the cooling cover through the first conduit, which is convenient for taking away a part of the heat on the laser welding head; another part of the air flow is introduced into the inside of the cover body through the third conduit, which helps to reduce the temperature of the mixed gas inside the cover body, can improve the heat dissipation effect on the laser welding head, and further improve the welding quality of the laser welding head. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings are used to provide further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, and do not constitute a limitation to the present invention.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is another schematic diagram of the overall structure of the present invention from another angle.

[0020] Figure 3It is a schematic diagram of the installation of the smoking component, intake component, and drive component of the present invention.

[0021] Figure 4 It is a schematic diagram of the installation of the air extraction component of the present invention.

[0022] Figure 5 It is a schematic diagram of the cooperation between the smoking component and the laser welding head of the present invention.

[0023] Figure 6 It is a schematic diagram of the structure of the laser welding head of the present invention.

[0024] Figure 7 It is a schematic diagram of the cooperation between the cooling cover and the intake component of the present invention.

[0025] In the figure: 1. Laser welding head; 11. Card slot; 2. Cover body; 3. Smoking component; 31. Guide post; 311. Guide hole; 312. Exhaust port; 4. Drive component; 41. Drive motor; 42. Connecting column; 5. Guide pipe; 6. Intake component; 61. First conduit; 62. Second conduit; 63. Third conduit; 7. Cooling cover; 71. Cylindrical part; 711. Opening; 72. Ring part; 8. Air extraction component; 81. Exhaust fan; 9. Connecting seat; 91. Fixing hole. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Embodiment 1

[0028] Please refer to Figures 1-6 , the present invention provides a technical solution: a laser welding device for vehicle frames, including a laser welding head 1, a connecting seat 9 is connected to the welding laser head, and a fixing hole 91 is provided on the connecting seat 9; through the fixing hole 91, the laser welding head 1 is connected to an external manipulator, control equipment, etc., for forming an intelligent welding system, so as to drive the laser welding head 1 to perform intelligent welding operations on vehicle frames. This is the prior art and will not be elaborated here; the laser welding device further includes a cover body 2, the cover body 2 is fixedly sleeved outside the part of the laser welding head 1 close to the head, and the cover body 2 is hermetically connected to the laser welding head 1. The cover body 2 is made of heat-resistant and high-temperature-resistant materials, such as heat-resistant steel.

[0029] A plurality of smoke suction members 3 are arranged in a circumferential array in cooperation with the head of the laser welding head 1; specifically, a card slot 11 is arranged on the head of the laser welding head 1, and the card slot 11 is also arranged in a circumferential array. The number of the card slots 11 is equal to that of the smoke suction members 3. Each card slot 11 is internally fitted with a smoke suction member 3; four card slots 11 are provided on the laser welding head 1, that is, there are four smoke suction members 3.

[0030] A guiding pipe 5 is connected to the cover body 2. One end of the guiding pipe 5 far away from the cover body 2 is used to be connected with an external collection and filtration device (using existing technologies such as a filtration box). An air extraction assembly 8 is arranged inside the guiding pipe 5; under the action of the air extraction assembly 8, the smoke suction member 3 can suck the smoke generated during the welding process of the laser welding head 1, and the smoke suction member 3 is also used for heat exchange with the laser welding head 1; meanwhile, a plurality of driving assemblies 4 are arranged on the cover body 2. The number of the driving assemblies 4 is equal to that of the smoke suction members 3 and their positions correspond. Each driving assembly 4 drives the corresponding smoke suction member 3 to rotate.

[0031] The smoke suction member 3 includes a guide post 31 with a cylindrical structure. The guide post 31 is rotatably arranged on the cover body 2 through a high-temperature resistant sealing bearing. A part of the guide post 31 is located inside the cover body 2; a guiding hole 311 is arranged on the guide post 31, and the guiding hole 311 penetrates through the bottom end of the guide post 31. A plurality of exhaust ports 312 are arranged on the part of the guide post 31 located inside the cover body 2. The plurality of exhaust ports 312 are circumferentially and evenly distributed along the axis of the guide post 31, and the exhaust ports 312 communicate with the guiding hole 311; in addition, a part of the guide post 31 is located inside the card slot 11 and a part is located outside the card slot 11; and the driving assembly 4 drives the guide post 31 to rotate along the axis of the guide post 31. The card slot 11 is a semi-circular hole structure, and the diameter of the card slot 11 is slightly larger than the outer diameter of the guide post 31, that is, there is a clearance fit between the guide post 31 and the card slot 11, and there is a small gap between the guide post 31 and the card slot 11.

[0032] A filter element is arranged inside each guide post 31, and the filter element is arranged in the guiding hole 311 (not shown in the figure); specifically, the filter element can adopt a metal filter screen, and the metal filter screen is fixedly installed in the guiding hole 311; by arranging the filter screen, it is used to intercept impurities such as welding slag in the smoke.

[0033] The air extraction assembly 8 includes at least one powerful exhaust fan 81. The exhaust fan 81 is installed inside the guiding pipe 5. When the exhaust fan 81 works, it is used to guide the air flow inside the guiding pipe 5 to be discharged outwards, so as to enable the smoke generated during welding to be introduced into the cover body 2 from the guiding hole 311.

[0034] In this embodiment, the guide post 31 is made of a metal material with heat resistance, high temperature resistance, and good thermal conductivity, such as tungsten, etc. Through the cooperation of the guide post 31 and the card slot 11, under the action of the exhaust fan 81, the guide post 31 absorbs the fumes generated during the welding process of the automobile frame. The fumes are introduced into the interior of the cover body 2 through the guide holes 311. One end of the guide pipe 5 away from the cover body 2 is used to connect to an external collection and filtration device, so as to introduce the fumes into the external collection and filtration device, thereby reducing the impact on weld detection by industrial cameras, etc. At the same time, since the guide post 31 is arranged in the card slot 11 and the guide posts 31 are circumferentially distributed outside the laser welding head 1, the guide post 31 has a limiting effect on the laser welding head 1. When the laser welding head 1 undergoes thermal deformation due to continuous high temperature and contacts the guide post 31, the rotating guide post 31 generates a force on the laser welding head 1, thus avoiding excessive deformation of the laser welding head 1 and affecting the welding quality.

[0035] Embodiment Two

[0036] Refer to again Figure 3 , based on Embodiment One, in this embodiment, the driving assembly 4 includes a driving motor 41 and a connecting column 42. The connecting column 42 is fixedly connected to the top end of the guide post 31, and the connecting column 42 is rotatably arranged on the cover body 2 through a bearing. The output shaft of the driving motor 41 is coaxial with the connecting column 42 and the guide post 31, and the driving motor 41 is installed on the outer wall of the cover body 2. The connecting column 42 can be made of a material that is not easily thermally conductive. By driving the connecting column 42 to rotate with the driving motor 41, the guide post 31 can be driven to rotate.

[0037] Embodiment Three

[0038] Please refer to Figures 1-7 , based on Embodiment Two, in this embodiment, a cooling cover 7 is arranged inside the cover body 2, and the cooling cover 7 also sleeved outside a part of the laser welding head 1. The cooling cover 7 is hermetically connected to the cover body 2 and the laser welding head 1, and the guide post 31 is located outside the cooling cover 7. The cooling cover 7 is composed of a cylindrical part 71 and a circular ring part 72, and the cylindrical part 71 and the circular ring part 72 are coaxial. The circular ring part 72 is fixedly connected to the cylindrical part 71, the cylindrical part 71 is arranged on the cover body 2, and both the cylindrical part 71 and the circular ring part 72 are sleeved outside the laser welding head 1. In addition, an opening 711 is provided on the cylindrical part 71, and the opening 711 is close to the air guide channel.

[0039] An air intake assembly 6 is connected to the cooling cover 7. The air intake assembly 6 includes a first conduit 61 which is connected to the cylindrical portion 71. The air intake assembly 6 further includes a second conduit 62 which penetrates the cover body 2. The second conduit 62 is connected to the first conduit 61 and is fixedly connected to the cover body 2. A third conduit 63 is connected to the second conduit 62. The third conduit 63 is located inside the cover body 2 and outside the cylindrical portion 71. The second conduit 62 is an L-shaped tube and its top end is away from the head of the laser welding head 1. The cooling cover 7, the cover body 2, etc. can be made of heat-resistant and high-temperature-resistant materials.

[0040] In this embodiment, under the action of the exhaust fan 81, external air is introduced from the second conduit 62. A part of the air flow is introduced into the cooling cover 7 through the first conduit 61. This air flow impacts the outer wall of the laser welding head 1 and is discharged into the cover body 2 through the opening 711, which can take away a part of the heat on the laser welding head 1. Another part of the air flow is directly introduced into the cover body 2 through the third conduit 63 and is mixed with the mixed gas inside the cover body 2, which helps to reduce the temperature of the mixed gas inside the cover body 2, so as to facilitate the heat exchange between the guide post 31 and the gas inside the cover body 2. And the laser welding head 1 can exchange heat with the guide post 31, so as to further improve the heat dissipation effect of the laser welding head 1 and then improve the welding quality of the laser welding head 1. In addition, the mixed gas inside the cover body 2 can be discharged through the exhaust fan 81.

[0041] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A frame laser welding device, comprising a laser welding head (1), characterized in that, Further included are: A cover body (2), which is fixedly sleeved outside the laser welding head (1); Smoking members (3), there are multiple smoking members (3), and the multiple smoking members (3) are arranged in a circumferential array. Each smoking member (3) is rotatably arranged on the cover body (2), and each smoking member (3) communicates with the inside of the cover body (2); Drive assemblies (4), the number of drive assemblies (4) is equal to and in position correspondence with the smoking members (3). Each drive assembly (4) is used to drive the corresponding smoking member (3) to rotate, and each drive assembly (4) is installed on the cover body (2); A guiding pipeline (5), which is connected to one side of the cover body (2); An air extraction assembly (8), which is arranged inside the guiding pipeline (5); Among them, the smoking member (3) is used to limit the laser welding head (1), the smoking member (3) is used to suck the fumes generated during the welding process of the laser welding head (1), and the smoking member (3) is also used to exchange heat with the laser welding head (1).

2. The laser welding equipment for a vehicle frame according to claim 1, characterized in that, Further included is a card slot (11), and multiple card slots (11) are arranged on the laser welding head (1) in a circumferential array; The number of card slots (11) is equal to that of the smoking members (3), the card slots (11) cooperate with the smoking members (3), and each smoking member (3) is respectively arranged inside each card slot (11).

3. A frame laser welding device according to claim 2, characterized in that, The smoking member (3) includes a guide post (31), and the guide post (31) is rotatably arranged on the cover body (2); A guiding hole (311) is arranged inside the guide post (31), the guiding hole (311) penetrates through the bottom end of the guide post (31), and multiple exhaust ports (312) are arranged on the part of the guide post (31) located inside the cover body (2).

4. A frame laser welding device according to claim 3, characterized in that, The smoking member (3) further includes a filtering member, and the filtering member is arranged inside the guiding hole (311).

5. The frame laser welding device according to claim 3, characterized in that, The drive assembly (4) includes: A connecting column (42), the connecting column (42) is fixedly connected to the top end of the guide post (31), the connecting column (42) is rotatably arranged on the cover body (2), and the connecting column (42) and the guide post (31) are coaxial; A drive motor (41), which is arranged on the outer wall of the cover body (2), and the output end of the drive motor (41) is fixedly connected to the top end of the connecting column (42).

6. The laser welding device for a vehicle frame according to claim 1, characterized in that, The air extraction assembly (8) includes at least one exhaust fan (81), and the exhaust fan (81) is installed inside the guiding pipeline (5).

7. A frame laser welding device according to claim 3, characterized in that, A part of the guide post (31) is located outside the card slot (11).

8. A laser welding device for a vehicle frame according to claim 1, characterized in that, Further included are: A cooling cover (7), which is arranged inside the cover body (2), and the cooling cover (7) is sleeved outside the laser welding head (1); An air intake assembly (6), and the air intake assembly (6) is arranged on the cooling cover (7); Among them, an opening (711) is arranged on the cooling cover (7).

9. A frame laser welding device according to claim 8, characterized in that, The cooling cover (7) includes: A cylindrical part (71), which is arranged on the cover body (2); A circular ring part (72), which is fixedly connected to the cylindrical part (71); Among them, the cylindrical part (71) and the circular ring part (72) are coaxial, and the opening (711) is arranged on the cylindrical part (71).

10. A frame laser welding device according to claim 9, characterized in that, The air intake assembly (6) includes: A first conduit (61), which is connected to the cylindrical part (71); The second conduit (62), the second conduit (62) is connected to the first conduit (61), and the second conduit (62) penetrates the cover body (2); The third conduit (63), the third conduit (63) is connected to the second conduit (62), the third conduit (63) is located inside the cover body (2), and the third conduit (63) is located outside the cylindrical portion (71).

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