Blowing mechanism for tailored blank laser welding

Abstract

The tailored blank laser welding purging mechanism comprises a welding platform, and a containing groove is formed in the welding platform; a blowing assembly and a telescopic assembly connected to the outer side of the blowing assembly are arranged in the containing groove. The telescopic assembly can move in the axis direction of the containing groove and drive the blowing assembly to stretch out of or retract into the containing groove. The purging assembly is used for blowing high-pressure gas to the surface of the welding platform, and an air channel communicating with the containing groove is formed in the purging assembly. The purging assembly is arranged in the containing groove in the welding platform, the purging assembly can be driven to stretch out of the welding platform through the telescopic assembly, residual impurities on the welding platform are purged and cleaned away, the splicing precision of metal plates on the welding platform is prevented from being affected, the welding quality of finished products is improved, or the purging assembly is driven to retract into the welding platform to be stored, and the welding efficiency is improved. The occupied space is reduced.

Description

Technical Field

[0001] This application relates to the field of laser welding technology, and in particular to a laser welding cleaning mechanism. Background Technology

[0002] During laser welding of metal plates, the high temperature melts the metal and produces spatter (such as metal particles, oxide scale, etc.). When loading and unloading the metal plates, impurities or dust may fall onto the surface of the welding platform. If the residual impurities are not cleaned in time, the surface of the welding platform will become uneven. During subsequent welding, when the metal plates are spliced ​​on the welding platform, it is easy to cause height differences or deviations between the metal plates, making it difficult to accurately splice them and thus affecting the quality of the welded product. Traditional cleaning devices are generally set on the outside of the welding platform, resulting in a complex overall structure and a large space occupation. Utility Model Content

[0003] To address the aforementioned technical problems, this application provides a laser welding purging mechanism. By placing the purging component inside the welding platform, it can extend out of the welding platform to blow away residual impurities, thus avoiding affecting the splicing accuracy of metal plates on the welding platform and improving the welding quality of the finished product. Alternatively, it can retract into the welding platform for storage, reducing space occupation. The following technical solution is adopted:

[0004] A laser welding and purging mechanism includes a welding platform, on which a placement groove is provided;

[0005] The placement slot is equipped with a purging assembly and a telescopic assembly connected to the outside of the purging assembly;

[0006] The telescopic component can move along the axis of the placement slot and drive the purging component to extend or retract into the placement slot;

[0007] The blowing assembly is used to blow high-pressure gas onto the surface of the welding platform, and the blowing assembly has an air passage that connects to the placement slot.

[0008] Preferably, the purging assembly includes a first air blowing assembly disposed in the middle of the welding platform, the first air blowing assembly being used to blow impurities out to the periphery of the welding platform.

[0009] More preferably, the purging assembly further includes a second air blowing assembly, which is circumferentially distributed around the first air blowing assembly, and is used to blow impurities outwards from the welding platform.

[0010] More preferably, both the first air blowing assembly and the second air blowing assembly include a connecting portion, the connecting portion connecting the telescopic assembly and the sealing cover plate respectively, and the sealing cover plate having a plurality of air blowing portions communicating with the air passage.

[0011] Preferably, the telescopic assembly includes a piston that is slidably connected to the sidewall of the placement groove, and the piston and the sidewall of the placement groove are sealed together.

[0012] Preferably, the welding platform is provided with an air supply channel, which is connected to the placement slot for controlling the movement of the telescopic component and providing cleaning gas to the purging component.

[0013] Preferably, it further includes a support component disposed in the placement groove, the support component being sleeved on the outside of the purging assembly and slidably connected to the purging assembly, and the support component being provided with a plurality of vent holes.

[0014] More preferably, the vent has a stepped structure to increase the resistance to movement of the telescopic component and reduce noise.

[0015] More preferably, it also includes a reset component, which connects the support component and the telescopic assembly, and is used to push the telescopic assembly to retract the purging assembly into the placement slot.

[0016] Preferably, the first air blowing assembly is rotatable about the axis of the placement slot.

[0017] The beneficial effects of this application are as follows:

[0018] (1) In this application, the purging component is placed in the placement slot inside the welding platform. The purging component can be driven to extend out of the welding platform through the telescopic component to purge and clean the residual impurities on the welding platform, so as to avoid affecting the splicing accuracy of the metal plate on the welding platform and improve the welding quality of the finished product. Alternatively, the purging component can be driven to retract into the welding platform for storage, thereby reducing the space occupied.

[0019] (2) Based on the above, the purging assembly can rotate around the placement groove axis, which can further improve the cleaning effect. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the application during cleanup;

[0021] Figure 2 This is a structural diagram of the storage in this application;

[0022] Figure 3 This application Figure 1 Enlarged view of a portion of point A in the middle;

[0023] Figure 4 This application Figure 1 Enlarged view of section B in the middle.

[0024] In the picture:

[0025] 10. Welding platform;

[0026] 20. Placement slot; 210. First cavity; 220. Second cavity;

[0027] 30. Telescopic components;

[0028] 40. Purge assembly; 40A. First air blowing assembly; 40B. Second air blowing assembly; 410. Connecting part; 420. Sealing cover; 430. Air blowing part;

[0029] 50. Supporting components; 510. Vent holes;

[0030] 60. Reset component; 70. Air supply channel; 80. Air passage. Detailed Implementation

[0031] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described in this application are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0032] See Figures 1 to 4 To further elaborate on this application:

[0033] Combination Figure 1 and Figure 2 The laser welding and purging mechanism includes a welding platform 10 for providing a support plane for metal plates to facilitate splicing and welding of metal plates. The welding platform 10 is provided with at least one placement groove; the top of the placement groove 20 is provided with an opening.

[0034] The placement slot 20 is equipped with a purging assembly 40 and a telescopic assembly 30 connected to the outside of the purging assembly 40. The telescopic assembly 30 can move along the axis of the placement slot 20 and drive the purging assembly 40 to extend or retract into the placement slot 20. The telescopic assembly 30 divides the placement slot 20 into a first cavity 210 and a second cavity 220. The telescopic assembly 30 is driven to move by providing a medium, which is gas, into the first cavity 210.

[0035] Combination Figure 3 The blowing assembly 40 is used to blow high-pressure gas onto the surface of the welding platform 10. The blowing assembly 40 is provided with an air passage 80 that connects to the placement groove 20. The air passage 80 connects to the first cavity 210.

[0036] Combination Figure 1After the welded metal plate is picked up from the welding platform 10, gas is supplied into the first cavity 210, which drives the telescopic component 30 to extend the blowing component 40 out of the placement slot 20. At the same time, some of the gas in the first cavity 210 enters the blowing component 40 through the air passage 80 and is then blown onto the surface of the welding platform 10 to clean the impurities on its surface.

[0037] Combination Figure 2 After the blowing assembly 40 has cleaned the surface of the welding platform 10, it discharges the gas in the first cavity 210, thereby driving the telescopic assembly 30 to move the blowing assembly 40 down and retract into the placement slot 20, so that a new metal plate can be placed on the welding platform 10 for splicing and welding, which can reduce the overall space occupied.

[0038] The purging assembly 40 includes a first air blowing assembly 40A disposed in the middle of the welding platform 10, and the first air blowing assembly 40A is used to clean impurities. The first air blowing assembly 40A is located at the center of the welding platform 10 and is used to blow impurities remaining on the surface of the welding platform 10 outwards. That is, high-pressure gas is sprayed around the first air blowing assembly 40A as the center, blowing impurities away from the surface of the welding platform 10.

[0039] The welding platform 10 is provided with an air supply channel 70, which is connected to the placement slot 20. This channel controls the movement of the telescopic assembly 30 and provides cleaning gas to the purging assembly 40. In this embodiment, the air supply channel 70 is connected to the side wall of the placement slot 20; alternatively, it can be connected to the bottom of the placement slot 20. As a feasible implementation, the air supply channel 70 can be connected to both an air supply device and an air extraction device via an electromagnetic reversing valve. The air supply device provides high-pressure gas to the first cavity 210 to drive the telescopic assembly 30 to extend the purging assembly 40. The air extraction device extracts gas from the first cavity 210 to retract the telescopic assembly 30 and the purging assembly 40. The electromagnetic reversing valve can connect the air supply device and the air extraction device to the first cavity 210 respectively.

[0040] In this application, the blowing assembly 40 is placed in the placement slot 20 within the welding platform 10. The blowing assembly 40 can be driven to extend out of the welding platform 10 by the telescopic assembly 30 to blow away and clean the residual impurities on the welding platform 10, so as to avoid affecting the splicing accuracy of the metal plates on the welding platform 10 and improve the welding quality of the finished product. Alternatively, the blowing assembly 40 can be driven to retract into the welding platform 10 for storage, thereby reducing the space occupied.

[0041] In some embodiments, the purging assembly 40 may further include a second air blowing assembly 40B, which is circumferentially distributed around the first air blowing assembly 40A. The second air blowing assembly 40B is used to cooperate with the first air blowing assembly 40A to blow impurities outward from the welding platform 10, thereby further improving the cleaning effect.

[0042] The second air blowing component 40B is arranged in a ring around the first air blowing component 40A, and the second air blowing component 40B blows impurities away from the first air blowing component 40A in a fan shape. Of course, multiple rings of the second air blowing component 40B can be arranged from the inside to the outside as needed. The overall flow direction of the high-pressure airflow is from the center of the welding platform 10 to the surrounding areas to clean up impurities.

[0043] Both the first air blowing assembly 40A and the second air blowing assembly 40B include a connecting portion 410, which connects the telescopic assembly 30 and the sealing cover plate 420 respectively. The sealing cover plate 420 has a plurality of air blowing portions 430. An air passage 80 is disposed within the connecting portion 410, connecting the first cavity 210 and the air blowing portions 430. The air blowing portions 430 of the first air blowing assembly 40A are arranged in a ring on the sealing cover plate 420, while the air blowing portions 430 of the second air blowing assembly 40B are arranged in a fan shape on the sealing cover plate 420 on the side away from the first air blowing assembly 40A. Each air blowing portion 430 can be an air nozzle.

[0044] In this embodiment, the telescopic assembly 30 includes a piston, which is slidably connected to the side wall of the placement groove 20, and the piston and the side wall of the placement groove 20 are sealed together. A sealing ring is provided between the piston and the side wall of the placement groove 20, and the sealing ring can be installed on the outside of the piston to prevent gas leakage from the first cavity 210.

[0045] In this embodiment, a support component 50 is also provided within the placement groove 20. The support component 50 is sleeved on the outside of the purging assembly 40 and slidably connected to the purging assembly 40. The support component 50 is provided with a plurality of vent holes 510 for venting gas from the second cavity. The vent holes 510 are stepped throttling holes to reduce the moving speed of the telescopic assembly 30, thereby reducing noise and impact.

[0046] The support component 50 is sleeved on the outside of the connecting part 410 and slidably connected. The support component 50 is used to support the blowing assembly 40 to prevent the blowing assembly 40 from radially shifting, and at the same time can block the telescopic assembly 30 to prevent it from detaching from the placement groove 20. The support component 50 is detachably connected to the side wall of the placement groove 20, which can be a threaded connection or a limiter ring with an opening, and there is no restriction here.

[0047] In some embodiments, the placement slot 20 is further provided with a reset component 60, which connects the support component 50 and the telescopic assembly 30, and is used to push the telescopic assembly 30 to retract the blowing assembly 40 into the placement slot 20. The reset component 60 may be a spring.

[0048] In an embodiment not shown, the first air blowing assembly 40A is rotatable around the axis of the placement groove 20. Specifically, the sealing cover plate 420 is rotatably connected to the connecting part 410, and the sealing cover plate 420 is provided with a flow guiding component; the flow guiding component consists of multiple arc-shaped blades, used to drive the sealing cover plate 420 to rotate the air blowing part 430, so as to further improve the cleaning effect on the surface of the welding platform 10. When cleaning impurities, high-pressure gas flows sequentially from the first cavity 210 through the air passage 80, the flow guiding component, and then is blown out by the air blowing part 430.

Claims

1. A laser welding and purging mechanism, including a welding platform, characterized in that: The welding platform is provided with a placement slot; The placement slot is equipped with a purging assembly and a telescopic assembly connected to the outside of the purging assembly; The telescopic component can move along the axis of the placement slot and drive the purging component to extend or retract into the placement slot; The blowing assembly is used to blow high-pressure gas onto the surface of the welding platform, and the blowing assembly has an air passage that connects to the placement slot.

2. The laser welding and purging mechanism according to claim 1, characterized in that: The purging assembly includes a first air blowing assembly located in the middle of the welding platform, which is used to blow impurities out to the periphery of the welding platform.

3. The laser welding and purging mechanism according to claim 2, characterized in that: The purging assembly further includes a second air blowing assembly, which is circumferentially distributed around the first air blowing assembly and is used to blow impurities outwards from the welding platform.

4. The laser welding and purging mechanism according to claim 3, characterized in that: Both the first air blowing assembly and the second air blowing assembly include a connecting part, which connects the telescopic assembly and the sealing cover plate respectively. The sealing cover plate is provided with a plurality of air blowing parts that communicate with the air passage.

5. The laser welding and purging mechanism according to claim 1, characterized in that: The telescopic assembly includes a piston that is slidably connected to the sidewall of the placement groove, and the piston and the sidewall of the placement groove are sealed together.

6. The laser welding and purging mechanism according to claim 1, characterized in that: The welding platform is equipped with an air supply channel, which is connected to the placement slot. This channel is used to control the movement of the telescopic component and to provide cleaning gas to the purging component.

7. The laser welding and purging mechanism according to claim 1, characterized in that: It also includes a support component disposed in the placement slot, the support component being sleeved on the outside of the purging assembly and slidably connected to the purging assembly, and the support component being provided with a plurality of vent holes.

8. The laser welding and purging mechanism according to claim 7, characterized in that: It also includes a reset component, which connects the support component and the telescopic assembly, and is used to push the telescopic assembly to drive the purging assembly back into the placement slot.

9. The laser welding and purging mechanism according to claim 2, characterized in that: The first air blowing assembly can rotate around the axis of the placement slot.

10. The laser welding and purging mechanism according to claim 7, characterized in that: The vent has a stepped structure.

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