Dust removal mechanism and laser welding device

Abstract

The application discloses a dust removal mechanism and laser welding equipment, which comprises a dust collection pipe extending along the length direction, and a dust removal assembly comprising a dust removal cover, a fixing component and a plurality of dust removal pipes. The dust removal cover is installed on the dust collection pipe and has a dust removal cavity in communication with the dust collection pipe. The dust removal cover is provided with a plurality of interfaces in communication with the dust removal cavity. The first end of the dust removal pipe is connected to the interface, and the second end of the dust removal pipe is installed on the fixing component. The fixing component is used for limiting the position of the second end of the dust removal pipe, so that the plurality of dust removal pipes extend to corresponding welding areas. The dust removal is thorough and the effect is good, and the welding seam quality is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of laser welding, and in particular to a dust removal mechanism and laser welding equipment. Background Technology

[0002] Laser welding equipment is a machine used to produce laser-welded workpieces. It utilizes the heat generated by a laser to weld two parts together, achieving high efficiency and automation. During laser welding, a large amount of fumes are generated near the welding point. These fumes create dust pollution and weld slag defects at the weld joint, affecting both workpiece quality and the working environment. Currently, existing dust removal methods are integrated dust collection systems, which use open dust hoods near the welding point. This type of dust collection mechanism suffers from poor airflow concentration, weak dust removal capacity, and ineffective results. Summary of the Invention

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a dust removal mechanism and laser welding equipment that can thoroughly remove dust, achieve good results, and greatly improve the quality of welds.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] Firstly, a dust removal mechanism includes:

[0006] Dust collection pipe extends along its length;

[0007] A dust removal assembly includes a dust removal hood, a fixing component, and multiple dust removal pipes. The dust removal hood is installed on the dust collection pipe and has a dust removal chamber communicating with the dust collection pipe. The dust removal hood is provided with multiple interfaces communicating with the dust removal chamber. A first end of each dust removal pipe is connected to one of the interfaces, and a second end of each dust removal pipe is installed on the fixing component. The fixing component is used to define the position of the second end of the dust removal pipe so that the multiple dust removal pipes extend to the corresponding welding area.

[0008] In conjunction with the first aspect, in some implementations of the first aspect, the dust removal pipe includes a flexible hose.

[0009] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, one end of the hose is connected to the interface, and the other end of the hose is provided with a metal tube for extending to the corresponding welding area.

[0010] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the fixing component is mounted on a fixture frame for positioning the product, and the fixing component is provided with a clamping element for positioning the product.

[0011] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the dust collection pipe is provided with a dust removal hood mounting base, the dust removal hood is mounted on the dust removal hood mounting base, and is configured to be able to rotate about an axis.

[0012] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the dust removal mechanism includes a plurality of dust removal components, and the dust removal hoods of the plurality of dust removal components are distributed along the length direction of the dust collection pipe.

[0013] In conjunction with the first aspect and the above-described implementations, in some implementations of the first aspect, the fixing component has a first mounting surface and a second mounting surface extending along the thickness direction. The first mounting surface of the fixing component is provided with a plurality of first mounting grooves. The dust removal pipe includes a plurality of first dust removal pipes correspondingly installed in the first mounting grooves. The fixing component is provided with a first locking component that confines the first dust removal pipes in the corresponding first mounting grooves. The second mounting surface of the fixing component is provided with a plurality of second mounting grooves. The dust removal pipe includes a plurality of second dust removal pipes correspondingly installed in the second mounting grooves. The fixing component is provided with a second locking component that confines the second dust removal pipes in the corresponding second mounting grooves.

[0014] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the fixing component has a plurality of mounting holes extending along the thickness direction, the dust removal pipe includes a plurality of third dust removal pipes corresponding to the mounting holes, a cable tie fixing seat is provided on the side of the mounting holes, and the third dust removal pipe is fixed by a binding component connected to the cable tie fixing seat.

[0015] Secondly, a laser welding device includes:

[0016] Product positioning fixture;

[0017] The laser welding head is located at the drive end of the drive mechanism;

[0018] In any implementation of the first aspect, the dust removal mechanism has a dust removal tube corresponding to each laser welding area.

[0019] In conjunction with the second aspect, in some implementations of the second aspect, the driving mechanism includes a lifting manipulator and a lateral movement module for driving the lifting manipulator to move laterally, the laser welding head is disposed at the driving end of the lifting manipulator, the laser welding equipment further includes a detection mechanism for pre-weld inspection and post-weld inspection, and the product positioning fixture includes a fixed frame, a rotating component disposed on the fixed frame, a clamping mechanism disposed on the rotating component, and a driving component for driving the rotating component to rotate around its own axis.

[0020] One of the above technical solutions has at least one of the following advantages or beneficial effects: The technical solution of the present invention can be used to absorb the fumes generated near the welding area during product welding by laser welding equipment. The second end of the dust removal pipe of the dust removal component is positioned by a fixing component, and multiple dust removal pipes extend to their respective corresponding welding areas. Each dust removal pipe corresponds to one laser welding area, and the fumes generated in each laser welding area are absorbed by the corresponding dust removal pipe and uniformly collected into the dust collection pipe. In the technical solution of the present invention, the dust removal pipe has a smaller diameter than an open dust hood, thereby concentrating the airflow for dust removal, resulting in high dust removal efficiency, strong force, and excellent dust removal effect.

[0021] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a first-view structural diagram of the fixed component and multiple dust removal pipes of an embodiment of the dust removal mechanism of the present invention;

[0024] Figure 2 yes Figure 1 A second-view structural schematic diagram of the fixing component and multiple dust collection pipes of one embodiment is shown;

[0025] Figure 3 yes Figure 1 A schematic diagram showing the one-to-one correspondence between the second ends of multiple dust removal pipes and the welding area in one embodiment is shown.

[0026] Figure 4 yes Figure 1 A schematic diagram of the dust collector hood and dust collection pipe structure of one embodiment is shown;

[0027] Figure 5 yes Figure 1 A cross-sectional view of the dust collector hood and dust collection pipe structure of one embodiment is shown;

[0028] Figure 6 This is a schematic diagram of the structure of one embodiment of the laser welding equipment of the present invention. Detailed Implementation

[0029] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0030] In this invention, when directions (up, down, left, right, front, and back) are described, it is only for the convenience of describing the technical solution of this invention, and does not indicate or imply that the technical features referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0031] In this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc., are understood to exclude the stated number; "above," "below," "within," etc., are understood to include the stated number. In the description of this invention, the terms "first" and "second" are used only to distinguish technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0032] In this invention, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; a fixed connection, a detachable connection, or an integrally formed connection; a mechanical connection, an electrical connection, or a connection capable of mutual communication; or the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this invention based on the specific content of the technical solution.

[0033] Embodiments of the present invention provide a dust removal mechanism capable of absorbing fumes generated near the welding area during product welding by laser welding equipment.

[0034] See Figures 1-6 The dust removal mechanism includes a dust collection pipe 100 and a dust removal assembly 200. The dust collection pipe 100 extends along the length direction and can be connected to one or more dust removal assemblies 200. The dust collection pipe 100 is used to collect and discharge the smoke and dust from multiple dust removal pipes of the dust removal assembly 200.

[0035] The dust removal assembly 200 includes a dust removal hood 201, a fixing component 202, and multiple dust removal pipes 203. The dust removal hood 201 is installed on the dust collection pipe 100 and has a dust removal chamber 204 communicating with the dust collection pipe 100. The dust removal hood 201 is provided with multiple interfaces 205 communicating with the dust removal chamber 204. The first end of the dust removal pipe 203 is connected to the interface 205, and the second end of the dust removal pipe 203 is installed on the fixing component 202. The fixing component 202 is used to define the position of the second end of the dust removal pipe 203 so that the multiple dust removal pipes 203 extend to the corresponding welding area. The dust removal assembly 200 forms a dust suction channel from the second end of the dust removal pipe 203 to the dust removal hood 201.

[0036] Combination Figure 3 Taking the welding of battery casing 300 and top cover as an example, the welding object is pre-spot welding of battery casing 300 and top cover. The pre-spot welding method is to weld at circumferential intervals at the joint between battery casing 300 and top cover. The battery is a square battery, so the weld formed at the joint between battery casing 300 and top cover is square in plane, and there are multiple welding areas in this square weld. In specific use, the entire dust removal mechanism is set near the laser welding equipment. The second end of the dust removal pipe 203 of the dust removal component 200 is positioned by the fixing component 202, and multiple dust removal pipes 203 extend to their respective corresponding welding areas. Multiple dust removal pipes 203 correspond one-to-one with each laser welding area. The smoke and dust generated in each laser welding area are absorbed by the corresponding dust removal pipe 203 and uniformly flow into the dust collection pipe 100. In the technical solution of the present invention, the dust removal pipe 203 has a smaller diameter than the open dust removal hood 201, so that the air volume can be concentrated for dust removal, resulting in high dust removal efficiency, strong force, and excellent dust removal effect.

[0037] In some embodiments, the dust removal pipe 203 includes a flexible hose 206, which, compared to a rigid pipe, can reduce the accuracy requirements such as coaxiality during installation.

[0038] Further, see Figure 2 One end of the hose 206 is connected to the interface 205, and the other end of the hose 206 is provided with a metal tube 207 for extending to the corresponding welding area. The metal tube 207 can better adapt to the high temperature of the laser welding area. The metal tube 207 and the hose 206 can be detachably connected by a pipe clamp.

[0039] In some embodiments, see Figure 1 , Figure 2 , Figure 3 The product is held by a fixture, which has a fixture frame 400. The fixing component 202 is installed on the fixture frame 400 for positioning the product. The dust removal component 200 is fixed on the fixture frame 400 by buckles and screws, so that multiple dust removal components 200 correspond one-to-one with each laser welding area.

[0040] See Figure 1 The fixing component 202 is provided with a clamping member 208 for positioning the product. The clamping member 208 extends towards the product and is used to hold the welded product, such as the top cover, in place to prevent the product from shifting. In this embodiment, the clamping member 208 is installed on the fixing component 202 in conjunction with its installation position on the fixture frame 400, integrating it with the dust removal component and greatly saving space.

[0041] During welding, the fixture rotates, and the fixture frame 400 rotates synchronously with the fixture to achieve welding around the product. Simultaneously with the rotation of the fixture and fixture frame 400, the dust removal component 200 also rotates synchronously. (See [link]). Figure 3 , Figure 4 The dust collection pipe 100 is equipped with a dust removal hood mounting base 101. The dust removal hood 201 is mounted on the dust removal hood mounting base 101 and is configured to rotate around its axis. The flexible hose 206 has a certain degree of rigidity and needs to rotate the dust removal hood 201 when the clamp rotates (the dust removal hood 201 rotates accordingly) to prevent the dust collection pipe 203 from twisting into a tangled mess during the welding process, thus preventing dust removal.

[0042] In some embodiments, combined with Figure 4 , Figure 6 The dust removal mechanism includes multiple dust removal components 200. The dust removal hoods 201 of the multiple dust removal components 200 are distributed along the length of the dust collection pipe 100. The multiple dust removal components 200 form multiple branches at multiple welding stations of the laser welding equipment corresponding to the dust collection pipe 100. In this embodiment, a single dust removal mechanism meets the dust removal requirements of multiple welding stations, simplifying the entire welding equipment.

[0043] See Figure 1 , Figure 2 The fixing component 202 has a first mounting surface 209 and a second mounting surface 210 extending along the thickness direction. The first mounting surface 209 of the fixing component 202 is provided with a plurality of first mounting grooves. The dust removal pipe 203 includes a plurality of first dust removal pipes 213 correspondingly installed in the first mounting grooves. The fixing component 202 is provided with a first locking component 211 that confines the first dust removal pipes 213 in the corresponding first mounting grooves. The second mounting surface 210 of the fixing component 202 is provided with a plurality of second mounting grooves. The dust removal pipe 203 includes a plurality of second dust removal pipes 214 correspondingly installed in the second mounting grooves. The fixing component 202 is provided with a second locking component that confines the second dust removal pipes 214 in the corresponding second mounting grooves. The fixing component 202 provides stable support and positioning for the dust removal pipes 203 through the first mounting surface 209 and the second mounting surface 210, so that the dust removal port of each dust removal pipe 203 can be accurately aligned with its corresponding welding area.

[0044] Furthermore, participate Figure 3 The battery casing 300 and the top cover also have welding areas at the corners of their side edges. For these two welding areas, the fixing component 202 has multiple mounting holes extending along the thickness direction. The dust removal pipe 203 includes multiple third dust removal pipes 215 corresponding to the mounting holes. A cable tie fixing seat 212 is provided on the side of the mounting hole, and the cable tie fixing seat 212 has binding holes. The third dust removal pipes 215 are fixed by binding components connected to the cable tie fixing seat 212. By setting dust removal pipes 203 corresponding to each welding area, the dust removal in the welding area is more thorough and effective, greatly improving the weld quality.

[0045] join Figure 6The present invention also provides a laser welding device, which includes a product positioning fixture 500, a laser welding head 600, and a dust removal mechanism as described in any of the above embodiments. The laser welding head 600 is disposed at the drive end of the drive mechanism. The dust removal pipes 203 of the dust removal mechanism correspond one-to-one with each laser welding area. During welding, the product is positioned and clamped by the product positioning fixture 500, and the laser welding head 600 is driven by the drive mechanism, cooperating with the product positioning fixture 500 to achieve welding of each welding area of ​​the product. During this process, combined with… Figure 3 The fumes generated in each laser welding area are absorbed by the corresponding dust removal pipe 203 and uniformly collected into the dust collection pipe 100. Since the dust removal pipe 203 has a smaller diameter than the open dust removal hood 201, it can concentrate the air volume for dust removal, resulting in high dust removal efficiency, strong force, and excellent dust removal effect, thereby improving product quality and avoiding pollution of the working environment.

[0046] In some embodiments, see Figure 6 The drive mechanism includes a lifting robot 700 and a lateral movement module 800 that drives the lifting robot 700 to move laterally. The laser welding head 600 is located at the drive end of the lifting robot 700. Under the drive of the drive mechanism, the laser welding head 600 can adjust the welding position in the lateral and height directions.

[0047] See Figure 6 The laser welding equipment also includes an inspection mechanism 900 for pre-weld and post-weld inspection. During pre-weld inspection, the inspection mechanism 900 checks the degree of proper press-fitting between the top cover and the shell – reflecting whether the pre-weld gap is acceptable. During post-weld inspection, the inspection mechanism 900 checks whether the post-weld weld is acceptable.

[0048] See Figure 6 The product positioning fixture 500 includes a fixed frame 501, a rotating component 502 disposed on the fixed frame 501, a clamping mechanism 503 disposed on the rotating component 502, and a driving component for driving the rotating component 502 to rotate around its own axis. The product positioning fixture 500 can drive the product to rotate under the drive of the driving component, thereby achieving welding around the product.

[0049] In the description of this specification, references to terms such as "example," "embodiment," or "some embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0050] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A dust removal mechanism, characterized in that, include: Dust collection pipe extends along its length; A dust removal assembly includes a dust removal hood, a fixing component, and multiple dust removal pipes. The dust removal hood is installed on the dust collection pipe and has a dust removal chamber communicating with the dust collection pipe. The dust removal hood has multiple interfaces communicating with the dust removal chamber. A first end of each dust removal pipe is connected to one of the interfaces, and a second end of each dust removal pipe is installed on the fixing component. The fixing component is used to define the position of the second end of each dust removal pipe so that the multiple dust removal pipes extend to corresponding welding areas. The fixing component is installed on a fixture frame for positioning products and has a clamping element for positioning products. The dust collection pipe has a dust removal hood mounting base. The dust removal hood is installed on the dust removal hood mounting base and is configured to rotate about an axis. The dust removal pipe includes a flexible hose. The fixture frame can rotate synchronously with the positioned product. The hose has a certain rigidity. The dust removal assembly rotates synchronously with the rotation of the fixture frame.

2. The dust removal mechanism according to claim 1, characterized in that, One end of the hose is connected to the interface, and the other end of the hose is provided with a metal tube for extending to the corresponding welding area.

3. The dust removal mechanism according to claim 1, characterized in that, The dust removal mechanism includes multiple dust removal components, and the dust removal hoods of the multiple dust removal components are distributed along the length of the dust collection pipe.

4. The dust removal mechanism according to claim 1, characterized in that, The fixing component has a first mounting surface and a second mounting surface extending along the thickness direction. The first mounting surface of the fixing component is provided with a plurality of first mounting grooves. The dust removal pipe includes a plurality of first dust removal pipes corresponding to be installed in the first mounting grooves. The fixing component is provided with a first locking component that limits the first dust removal pipes to the corresponding first mounting grooves. The second mounting surface of the fixing component is provided with a plurality of second mounting grooves. The dust removal pipe includes a plurality of second dust removal pipes corresponding to be installed in the second mounting grooves. The fixing component is provided with a second locking component that limits the second dust removal pipes to the corresponding second mounting grooves.

5. The dust removal mechanism according to claim 4, characterized in that, The fixing component has multiple mounting holes extending along the thickness direction. The dust removal pipe includes multiple third dust removal pipes corresponding to the mounting holes. A cable tie fixing seat is provided on the side of the mounting hole. The third dust removal pipe is fixed by a binding component connected to the cable tie fixing seat.

6. A laser welding device, characterized in that, include: Product positioning fixture; The laser welding head is located at the drive end of the drive mechanism; The dust removal mechanism according to any one of claims 1 to 5, wherein the dust removal tube corresponds one-to-one with each laser welding area.

7. The laser welding equipment according to claim 6, characterized in that, The driving mechanism includes a lifting manipulator and a lateral movement module for driving the lifting manipulator to move laterally. The laser welding head is disposed at the driving end of the lifting manipulator. The laser welding equipment also includes a detection mechanism for pre-weld inspection and post-weld inspection. The product positioning fixture includes a fixed frame, a rotating component disposed on the fixed frame, a clamping mechanism disposed on the rotating component, and a driving component for driving the rotating component to rotate around its own axis.

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