Ultrasonic dust removal mechanism for laser welding

Abstract

The utility model belongs to the technical field of laser processing, and particularly relates to an ultrasonic dust removal mechanism for laser welding, which comprises a housing, a laser passing plate, an ultrasonic component, a flow equalizing plate and a bottom plate, the housing is connected with the bottom plate, the laser passing plate is arranged in the housing, and the laser passing plate is connected with the bottom plate; two ultrasonic assemblies are arranged in the housing, the ultrasonic assemblies are connected with the bottom plate, and the flow equalizing plate is connected with the housing and the laser passing plate and used for dividing the housing into a positive pressure chamber and a negative pressure chamber; the bottom surface of the bottom plate is arranged over against a to-be-welded workpiece; the ultrasonic assembly comprises a pressure maintaining assembly and a pressurizing assembly, and the pressure maintaining assembly and the pressurizing assembly are used for allowing airflow to pass through so as to dedust a workpiece subjected to laser welding; the electrode plate cleaning device can clean slag particles, smoke and dust generated after the electrode plate is welded by laser, and secondary pollution to the electrode plate is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser processing, and in particular relates to an ultrasonic dust removal mechanism for laser welding. Background Art

[0002] Laser processing is an indispensable processing technology in the lithium battery industry and is widely used in the processing of battery pole pieces. During the laser processing process, the high-energy laser will instantly melt the pole piece material, and at the same time, slag particles and smoke and dust will be splashed around. These splashed slag particles and smoke and dust will pollute the pole piece surface and the surrounding environment. The polluted pole piece surface will greatly affect the quality of subsequent laser processing, causing the pole piece material to be scrapped or even causing personal injury. When the slag particles splash and fall on the pole piece surface, they will solidify and weld to the pole piece surface, making it very difficult to clean up later.

[0003] In the prior art, dust removal is performed in the following manner. The inventor of the utility model discovered that there are at least the following technical problems: on the one hand, cleaning with a traditional brush is difficult, and the brush is a contact cleaning method, which has the risk of damaging the surface of the battery cell; on the other hand, adding a dust cover and a vacuum cleaner to the outside of the laser processing equipment can reduce the pollution of smoke and dust to the external environment, but it cannot avoid the pollution of the battery pole pieces.

[0004] In view of this, it is necessary to improve the defects of the prior art to overcome the deficiencies in practical applications. Utility Model Content

[0005] Based on the above-mentioned shortcomings and deficiencies in the prior art, one of the purposes of the present invention is to at least solve one or more of the above-mentioned problems in the prior art. In other words, one of the purposes of the present invention is to provide an ultrasonic dust removal mechanism for laser welding that meets one or more of the above-mentioned needs.

[0006] In order to achieve the above utility model purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides an ultrasonic dust removal mechanism for laser welding, comprising a cover shell, a laser passing plate, an ultrasonic component, a flow equalizing plate and a bottom plate, wherein the cover shell is connected to the bottom plate, the laser passing plate is arranged inside the cover shell, and the laser passing plate is connected to the bottom plate; two ultrasonic components are arranged in the cover shell, the ultrasonic components are connected to the bottom plate, the flow equalizing plate is connected to the cover shell and the laser passing plate, and is used for dividing the cover shell into a positive pressure chamber and a negative pressure chamber; the bottom surface of the bottom plate is arranged directly opposite to the workpiece to be welded; the ultrasonic component comprises a pressure maintaining component and a pressure boosting component, and the pressure maintaining component and the pressure boosting component are used for passing airflow to remove dust from the workpiece after laser welding.

[0008] As a preferred solution, side sealing plates are respectively installed at the front and rear ends of the cover shell, and the side sealing plates are connected to the air inlet pipe and the air outlet pipe. The air inlet pipe is connected to the positive pressure chamber, and the air outlet pipe is connected to the negative pressure chamber.

[0009] As a preferred solution, the booster components are respectively provided with air flow channels, and the air flow channels are configured as variable cross-section structures to generate vibrations to the air flow passing therethrough.

[0010] As a preferred solution, the variable cross-section structure is configured to include any one or more of a rectangle, a circle, a triangle or a diamond.

[0011] As a preferred solution, the pressure maintaining component is configured as an arch structure.

[0012] As a preferred solution, two sides of the current equalizing plate are respectively engaged with the housing and the laser through a board clamp, and a plurality of ventilation holes are evenly arranged on the current equalizing plate.

[0013] As a preferred solution, two first air flow channels are provided on the bottom plate, the two air flow channels are arranged obliquely and are connected to two ultrasonic components respectively.

[0014] As a preferred solution, the bottom plate is provided with two second air flow channels, and the two second air flow channels are respectively connected to the positive pressure chamber.

[0015] As a preferred solution, a laser channel is provided on the top surface of the cover shell, and the laser channel is connected to the laser through plate.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model provides an ultrasonic dust removal mechanism for laser welding, which can clean slag particles and smoke dust generated after laser welding of electrode pole pieces, thereby avoiding secondary pollution of the electrode pole pieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, drawings of other embodiments can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the ultrasonic dust removal mechanism of the embodiment of the utility model;

[0020] Figure 2 It is an exploded view of the ultrasonic dust removal mechanism of the embodiment of the utility model;

[0021] Figure 3 It is a cross-sectional view of the ultrasonic dust removal mechanism of the embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the cover structure of an embodiment of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the laser through plate of an embodiment of the utility model;

[0024] Figure 6 It is a schematic diagram of the bottom plate structure of an embodiment of the utility model;

[0025] Figure 7 It is a schematic diagram of the structure of the ultrasonic component of an embodiment of the utility model;

[0026] Figure 8 is another structural schematic diagram of the booster assembly of an embodiment of the utility model;

[0027] Fig. 9 It is another structural schematic diagram of the booster assembly of the embodiment of the utility model;

[0028] Fig.10 It is another structural schematic diagram of the booster assembly of the embodiment of the utility model;

[0029] In the figure: 1 cover, 2 ultrasonic component, 21 pressure maintaining component, 22 boosting component, 3 flow equalizing plate, 4 laser passing plate, 5 side sealing plate, 6 bottom plate, 601 first air flow channel, 602 second air flow channel, 603 laser channel, 71 outlet pipe, 72 air inlet pipe. DETAILED DESCRIPTION

[0030] In order to more clearly illustrate the embodiments of the present application, the specific implementation methods of the present application will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0031] In the description of the embodiments of the present application, the terms "upper", "lower", "front", "rear", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second", etc. are only used to distinguish in the description and have no special meaning.

[0032] According to some embodiments of the present application, please refer to Figures 1 to 10As shown, an ultrasonic dust removal mechanism for laser welding is provided, including a cover shell 1, a laser passing plate 4, an ultrasonic component 2, a flow equalizing plate 3 and a bottom plate 6, the cover shell 1 is connected to the bottom plate 6, the laser passing plate 4 is arranged inside the cover shell 1, and the laser passing plate 4 is connected to the bottom plate 6; two ultrasonic components 2 are arranged in the cover shell 1, the ultrasonic component 2 is connected to the bottom plate 6, the flow equalizing plate 3 is connected to the cover shell 1 and the laser passing plate 4, and is used to divide the cover shell 1 into a positive pressure chamber and a negative pressure chamber; the bottom surface of the bottom plate 6 is arranged opposite to the workpiece to be welded; the ultrasonic component 2 includes a pressure maintaining component 21 and a boosting component 22, and the pressure maintaining component 21 and the boosting component 22 are used to pass airflow to remove dust from the workpiece after laser welding.

[0033] Further, side sealing plates 5 are respectively installed at the front and rear ends of the housing 1, and the side sealing plates 5 are arranged at the front and rear ends of the housing 1 and connected to the housing 1 by screws. The side sealing plates 5 include a front sealing plate 51 and a rear sealing plate 52, the front sealing plate 51 is connected to the air inlet pipe 72 and the air outlet pipe 71, the air inlet pipe 72 is connected to the positive pressure chamber, and the air outlet pipe 71 is connected to the negative pressure chamber.

[0034] Furthermore, the booster assembly 22 is provided with airflow channels, and the airflow channels are configured as variable cross-section structures 221 to generate vibrations for the passing airflow. By providing three booster variable cross-section structures 221, the passing airflow is repeatedly expanded and compressed in sequence, and a stable ultrasonic airflow with a certain vibration frequency can be emitted. The ultrasonic airflow passes through the first airflow duct and impacts the surface of the processed material, and the ultrasonic energy and vibration are transmitted to the surface of the processed material, so that the dust overcomes the viscosity of the surface boundary layer and leaves the surface of the battery pole piece and becomes suspended.

[0035] like Figures 7 to 10 As shown, the variable cross-section structure 221 can be set to include one or more of a rectangle, a circle, a triangle or a rhombus, which can improve the ultrasonic vibration effect. The variable cross-section structure 221 can also be set to other regular shape structures, which can be set according to actual needs and is not limited to the above-mentioned structural shapes.

[0036] In some embodiments of the present application, the pressure-maintaining component 21 is configured as an arch structure 211 , and the arch structure 211 can prevent dust from accumulating on the pressure-maintaining component, so that the dust can smoothly flow through the air outlet pipe and be discharged.

[0037] Furthermore, the two sides of the flow equalizer plate 3 are respectively engaged with the housing 1 and the laser through plate 4, and a number of vents are evenly arranged on the flow equalizer plate 3. The flow equalizer plate 3 is provided with two symmetrical vents for airflow to pass through, and the flow equalizer plate is fixed by the grooves on the laser through plate and the grooves on the housing, without the need for additional connectors. The flow equalizer plate evenly distributes the airflow in the negative pressure chamber and also has a certain pressure-maintaining effect.

[0038] Furthermore, two first airflow channels are provided on the bottom plate 6, which are arranged obliquely and respectively connected to the two ultrasonic components 2. The obliquely arranged first airflow ducts can make the energy of the ultrasonic airflow act near the laser processing point and directly act on the spattering slag.

[0039] Furthermore, the bottom plate 6 is provided with two second air flow channels, which are respectively connected to the positive pressure chamber. The structure of the second air flow channel 602 is unevenly designed, being wider on the side away from the air inlet pipe and narrower on the side close to the air inlet pipe, so that the flow velocity of the passing air can be evenly distributed.

[0040] Furthermore, a laser channel is provided on the top surface of the housing 1, and the laser channel is connected to the laser through plate 4. The laser through plate 4 is provided with a groove 401 and a through hole 402, the housing is provided with a groove 102, and the current equalizing plate 3 is clamped in the groove 102 and the groove 401. The laser through plate will not affect the optical path and energy of the laser processing, and at the same time can take into account the sealing effect of the negative pressure chamber to ensure dust removal.

[0041] The ultrasonic dust removal mechanism of the embodiment of the present application can clean the slag particles and smoke dust generated after laser welding of the electrode plates, thereby avoiding secondary contamination of the electrode plates.

[0042] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like 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, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0043] The above description is only a detailed description of the preferred embodiments and principles of the present application. For ordinary technicians in this field, according to the ideas provided by the present utility model, there will be changes in the specific implementation methods, and these changes should also be regarded as the scope of protection of the present application.

Claims

1. An ultrasonic dust removal mechanism for laser welding, characterized in that: It includes a cover shell, a laser passing plate, an ultrasonic component, a flow equalizing plate and a bottom plate, the cover shell is connected to the bottom plate, the laser passing plate is arranged inside the cover shell, and the laser passing plate is connected to the bottom plate; two ultrasonic components are arranged in the cover shell, the ultrasonic components are connected to the bottom plate, the flow equalizing plate is connected to the cover shell and the laser passing plate, and is used to divide the cover shell into a positive pressure chamber and a negative pressure chamber; the bottom surface of the bottom plate is arranged facing the workpiece to be welded; the ultrasonic component includes a pressure maintaining component and a boosting component, and the pressure maintaining component and the boosting component are used to pass airflow to remove dust from the workpiece after laser welding.

2. The ultrasonic dust removal mechanism for laser welding according to claim 1, characterized in that: Side sealing plates are respectively installed at the front and rear ends of the cover shell, and the side sealing plates are connected to an air inlet pipe and an air outlet pipe. The air inlet pipe is connected to the positive pressure chamber, and the air outlet pipe is connected to the negative pressure chamber.

3. The ultrasonic dust removal mechanism for laser welding according to claim 1, characterized in that: The boosting components are respectively provided with air flow channels, and the air flow channels are configured as variable cross-section structures to generate vibrations for the air flow passing therethrough.

4. The ultrasonic dust removal mechanism for laser welding according to claim 3, characterized in that: The variable cross-section structure is configured to include any one or more of a rectangle, a circle, a triangle or a diamond.

5. The ultrasonic dust removal mechanism for laser welding according to claim 1, characterized in that: The pressure-maintaining component is configured as an arched structure.

6. The ultrasonic dust removal mechanism for laser welding according to claim 1, characterized in that: The two sides of the current equalizing plate are respectively engaged with the housing and the laser through a board clamp, and a plurality of vent holes are evenly arranged on the current equalizing plate.

7. The ultrasonic dust removal mechanism for laser welding according to claim 1, characterized in that: Two first air flow channels are arranged on the bottom plate, and the two air flow channels are arranged obliquely and are connected to two ultrasonic components respectively.

8. The ultrasonic dust removal mechanism for laser welding according to claim 1, characterized in that: The bottom plate is provided with two second air flow channels, and the two second air flow channels are respectively communicated with the positive pressure chamber.

9. The ultrasonic dust removal mechanism for laser welding according to claim 1, characterized in that: A laser channel is provided on the top surface of the cover shell, and the laser channel is connected with the laser passing plate.

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