A turret dust removal device

Abstract

The present invention relates to the field of welding dust removal technology, and discloses a turret dust removal device, comprising a turret mechanism, a dust extraction shell, and a protective cover. The turret mechanism has a rotation axis and a turret base, and the turret base is provided with a plurality of positioning parts circumferentially spaced around the rotation axis; the turret mechanism can rotate around the rotation axis relative to the dust extraction shell, and the dust extraction shell is provided with a first interface, and the first interface is arranged toward the turret base; there are a plurality of protective covers, and the plurality of protective covers are respectively fixedly mounted on the side of the positioning part facing the dust extraction shell, and the protective cover is provided with a welding process hole; the protective cover is also provided with a dust suction hole, and the dust suction hole is connected to a gas pipeline, and the end of the gas pipeline away from the protective cover is provided with a rotating interface; the rotating interface rotates and switches relative to the dust extraction shell, so that when the protective cover corresponds to the welding position, the rotating interface is connected to the first interface. The other positioning parts will not produce a dust extraction effect in non-welding positions, thereby avoiding an excessively large dust extraction area. The dust extraction mechanism is simple in design and has a good actual dust extraction effect.

Description

Technical Field

[0001] The invention relates to the technical field of welding dust removal, in particular to a turret dust removal device. Background Art

[0002] In lithium battery production, laser welding is often required to connect cell terminals, battery casings, explosion-proof valves, etc. The laser welding process generates a lot of impurities and fumes, which can easily affect welding quality and product performance.

[0003] Prior art turret flying welding systems, such as the Chinese utility model patent with authorization publication number CN205414699U and publication date August 3, 2016, disclose a battery cap laser welding machine. The machine comprises a platform, a motor, a turntable, and a laser welder. The platform is equipped with a motor, and a turntable at the motor's rotating end. The turntable has multiple placement slots arranged around its circumference for loading workpieces to be welded. A laser welder is also located above the platform. The turntable rotates the workpieces to be welded. When the workpieces are rotated to the welding station, the laser welder welds the workpieces in the placement slots. After welding is complete, the workpieces are rotated and removed.

[0004] In order to eliminate smoke and dust in the laser welding area, conventional turret flight welding equipment will be connected to an external side-axis dust extraction mechanism. Since the welding track occupies a large area on the equipment, the side-axis dust extraction mechanism is required to have a larger dust extraction area. The structure of the dust extraction mechanism is redundant and complex, and the actual dust extraction effect is poor. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that conventional turret flight welding equipment is externally connected to a side-axis dust extraction mechanism, the welding track occupies a large area on the equipment, the dust extraction area of the side-axis dust extraction mechanism is too large, the structure of the dust extraction mechanism is redundant and complex, and the actual dust extraction effect is poor.

[0006] In order to solve the above technical problems, the present invention provides a technical solution for a turret dust removal device:

[0007] The turret dust removal device includes:

[0008] A turret mechanism, the turret mechanism having a rotation axis and a turret base, the turret base being provided with a plurality of positioning portions circumferentially spaced around the rotation axis;

[0009] A dust extraction housing, wherein the turret mechanism is rotatable relative to the dust extraction housing about the rotation axis, and the dust extraction housing is provided with a first interface, wherein the first interface is arranged toward the turret base;

[0010] A protective cover, wherein a plurality of protective covers are provided, and the plurality of protective covers are respectively fixedly mounted on a side of the positioning portion facing the dust extraction housing, and the protective cover is provided with a welding process hole;

[0011] The protective cover is also provided with a dust suction hole, which is connected to a gas pipeline. The end of the gas pipeline away from the protective cover is provided with a rotating interface; the rotating interface rotates and switches relative to the dust extraction shell so that when the protective cover corresponds to the welding position, the rotating interface is connected to the first interface.

[0012] Furthermore, a spherical cavity is provided inside the protective cover, and the spherical cavity is covered on a side of the positioning portion facing the dust extraction housing.

[0013] Furthermore, the dust suction hole is opened on the side of the protective cover close to the rotation axis, and the plurality of gas pipelines are distributed circumferentially around the rotation axis.

[0014] Furthermore, the end of the gas pipeline away from the protective cover is connected to an adapter box, the rotation interface is opened on a side of the adapter box away from the turret base, and a plurality of the adapter boxes are spliced into a ring around the rotation axis.

[0015] Furthermore, an annular dust extraction cavity is provided inside the dust extraction shell, and the annular dust extraction cavity is arranged circumferentially around the rotation axis. A second interface is opened on the side of the dust extraction shell away from the turret base, and the second interface is fixedly connected to the dust extraction main line.

[0016] Furthermore, the rotating interface is slidably sealed with the dust extraction housing, and the first interface matches the contour shape of the rotating interface.

[0017] Furthermore, the gas pipeline includes an inclined section; one end of the inclined section is connected to the dust suction hole, and the other end extends obliquely toward the dust extraction housing.

[0018] Furthermore, the gas pipeline further includes a first transition section, an arc section and a second transition section, and the inclined section is sequentially connected to the first transition section, the arc section and the second transition section in a direction away from the protective cover.

[0019] Furthermore, the turret mechanism is further provided with a central axis platform corresponding to the rotation axis, and the central axis platform and the dust extraction housing are arranged at intervals along the rotation axis.

[0020] Furthermore, the positioning portion includes a current collecting plate fixture and a battery cell fixture, the current collecting plate fixture is arranged on the side of the turret base facing the dust extraction shell, and the battery cell fixture is arranged on the side of the turret base facing away from the dust extraction shell.

[0021] Compared with the prior art, the turret dust removal device of the present invention has the following beneficial effects: the turret dust removal device adopts a design form of a turret mechanism, a dust extraction shell, multiple protective covers and a gas pipeline, the turret mechanism has a rotation axis and a turret base, and the turret base is provided with multiple positioning parts circumferentially spaced around the rotation axis; moreover, the turret mechanism can rotate around the rotation axis relative to the dust extraction shell, the dust extraction shell remains fixed and stably connected to the dust extraction main pipeline, that is, the dust extraction shell does not rotate with the turret mechanism, and the dust extraction shell serves as a negative pressure source for the entire turret dust removal device.

[0022] Multiple protective covers are fixedly mounted on the side of the positioning portion facing the dust extraction housing. The positioning portion allows for secure mounting of the battery components to be welded. During the rotation of the turret mechanism, the protective covers move synchronously with the turret base. When the protective covers correspond to the welding position, the welding process holes allow the laser welder to perform on-the-fly welding of the battery components. The protective covers provide comprehensive protection for the welding area, preventing the spread of impurities and smoke.

[0023] In addition, the dust suction hole of the protective cover is connected to a gas pipeline. The end of the gas pipeline is provided with a rotating interface and rotates synchronously with the turret mechanism. When a certain positioning part and protective cover correspond to the welding position, the rotating interface of the gas pipeline is connected to the first interface of the dust extraction housing, so that the protective cover, gas pipeline and dust extraction housing at this position are connected in sequence to form a dust extraction channel, thereby accurately and efficiently extracting dust from the welding area of the positioning part. At the same time, when other positioning parts and protective covers are in non-welding positions, the gas pipeline is not connected to the first interface of the dust extraction housing and no dust extraction is generated, thus avoiding an excessively large dust extraction area and ensuring the dust extraction suction force in the welding area. The design of the dust extraction mechanism is simple and reasonable, and the actual dust extraction effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 2. It is a three-dimensional schematic diagram of a turret dust removal device in a specific embodiment of the turret dust removal device in an embodiment of the present invention;

[0025] Figure 2 is a three-dimensional schematic diagram of a turret dust removal device (without the dust extraction housing) in a specific embodiment of the turret dust removal device according to an embodiment of the present invention;

[0026] Figure 3 2. It is a plan view of a turret dust removal device and a welding position in a specific embodiment of the turret dust removal device in an embodiment of the present invention;

[0027] Figure 4 is a flow field distribution diagram inside the protective cover in a specific embodiment of the turret dust removal device in an embodiment of the present invention;

[0028] Figure 5 is a three-dimensional schematic diagram of a protective cover of a turret dust removal device having a square cavity in another embodiment;

[0029] Figure 6 This is a flow field distribution diagram of a dual-pipe protective cover at section 1 in another embodiment;

[0030] Figure 7 2. Flow field vector diagram of the double-pipe protective cover at section 1 in other embodiments;

[0031] Figure 8 This is a flow field distribution diagram of the double-pipe protective cover at section 2 in another embodiment;

[0032] In the figure: 1-turret mechanism, 10-turret base, 11-positioning part, 12-collecting plate fixture, 13-battery cell fixture, 14-collecting plate, 15-battery cell, 2-protective cover, 20-spherical cavity, 20a-square cavity, 21-welding process hole, 22-dust suction hole, 3-dust extraction shell, 30-annular dust extraction cavity, 31-first interface, 32-second interface, 33-dust extraction main line, 4-gas pipeline, 40-rotation interface, 41-inclined section, 42-first transition section, 43-arc section, 44-second transition section, 45-adapter box, 5-welding position, 6-center axis platform, Z-rotation axis. DETAILED DESCRIPTION

[0033] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like used in the present invention to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0036] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; they may refer to direct connection or indirect connection through an intermediate medium; they may refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0037] like Figures 1 to 4 As shown, a turret dust removal device according to an embodiment of the present invention includes a turret mechanism 1, a dust extraction shell 3 and a protective cover 2. The turret mechanism 1 has a rotation axis Z and a turret base 10. The turret base 10 is provided with a plurality of positioning portions 11 circumferentially spaced around the rotation axis Z. The turret mechanism 1 can rotate around the rotation axis Z relative to the dust extraction shell 3. The dust extraction shell 3 is provided with a first interface 31, and the first interface 31 is arranged facing the turret base 10.

[0038] There are multiple protective covers 2, and the multiple protective covers 2 are respectively fixedly mounted on the side of the positioning part 11 facing the dust extraction shell 3. The protective cover 2 is provided with a welding process hole 21; the protective cover 2 is also provided with a dust suction hole 22, and the dust suction hole 22 is connected to the gas pipeline 4. The end of the gas pipeline 4 away from the protective cover 2 is provided with a rotating interface 40; the rotating interface 40 rotates and switches relative to the dust extraction shell 3, so that when the protective cover 2 corresponds to the welding position 5, the rotating interface 40 is connected to the first interface 31.

[0039] The turret dust removal device adopts a design form of a turret mechanism 1, a dust extraction shell 3, multiple protective covers 2 and a gas pipeline 4. The turret mechanism 1 has a rotation axis Z and a turret base 10. The turret base 10 is provided with multiple positioning parts 11 circumferentially spaced around the rotation axis Z; moreover, the turret mechanism 1 can rotate around the rotation axis Z relative to the dust extraction shell 3, and the dust extraction shell 3 remains fixed and stably connected to the dust extraction main pipeline 33, that is, the dust extraction shell 3 does not rotate with the turret mechanism 1, and the dust extraction shell 3 serves as a negative pressure source for the entire turret dust removal device.

[0040] Multiple protective covers 2 are fixedly mounted on the side of the positioning portion 11 facing the dust extraction housing 3. Positioning portion 11 allows for secure mounting of the battery components to be welded. During the rotation of turret mechanism 1, protective covers 2 move synchronously with turret base 10. When protective covers 2 correspond to welding positions 5, the welding process holes 21 allow the laser of the welder to perform on-the-fly welding on the battery components. Protective covers 2 provide comprehensive protection for the welding area, preventing the outward diffusion of impurities and smoke.

[0041] In addition, the dust suction hole 22 of the protective cover 2 is connected to the gas pipeline 4, and the end of the gas pipeline 4 is provided with a rotating interface 40 and rotates synchronously with the turret mechanism 1. When a certain positioning part 11 and the protective cover 2 correspond to the welding position 5, the rotating interface 40 of the gas pipeline 4 is connected to the first interface 31 of the dust extraction shell 3, so that the protective cover 2, gas pipeline 4, and dust extraction shell 3 at this position are connected in sequence to form a dust extraction channel, thereby accurately and efficiently extracting dust from the welding area of the positioning part 11. At the same time, when the other positioning parts 11 and the protective cover 2 are in non-welding positions, the gas pipeline 4 is not connected to the first interface 31 of the dust extraction shell 3, and no dust extraction effect is generated, thereby avoiding an excessively large dust extraction area and ensuring the dust extraction suction force in the welding area. The design of the dust extraction mechanism is simple and reasonable, and the actual dust extraction effect is good.

[0042] In this embodiment, a spherical cavity 20 is provided inside the protective cover 2, and the spherical cavity 20 covers the side of the positioning portion 11 facing the dust extraction housing 3. It should be noted that the position of the protective cover 2 close to the positioning portion 11 is the welding area. Figure 4 As shown, according to the flow velocity simulation analysis, the spherical cavity 20 can avoid dust splashing and dust accumulation at the corners. The welding area of the spherical cavity 20 has a gas flow field with uniform distribution and high flow rate. The flow rate in the welding area can reach 12.5m / s. This gas flow field is conducive to sucking the welding slag and dust generated during the welding process into the dust suction hole 22, thereby ensuring the welding dust removal effect.

[0043] In other embodiments, Figure 5 As shown, the interior of the protective shield can be designed as a square cavity 20a. This shape can also provide comprehensive protection for the welding area, preventing the spread of impurities and smoke. However, the square cavity 20a has a larger space, resulting in a more turbulent internal flow field and uneven flow distribution in the welding area, which is not conducive to dust removal and discharge. Alternatively, the interior of the protective shield can be designed as a cylindrical cavity, a prismatic cavity, or other polyhedral cavity.

[0044] In addition, in other embodiments, in order to meet different usage requirements, the protective cover can also be designed in a dual-pipeline form. For example: dust suction holes are opened on two opposite sides of the protective cover, and negative pressure dust extraction is performed through the dust suction holes and gas pipelines on both sides. The air intake is mainly supplemented by the welding process hole, which can achieve the basic purpose of welding dust removal. Figures 6 to 8 As shown, the flow field distribution diagram and vector diagram of Section 1 show that due to the low wind resistance of the straight pipe, the airflow within the protective cover is mainly directly extracted by the gas pipeline through the welding process hole, and the gas flow through the welding area is poor. Combined with the flow field distribution diagram of Section 2, it can be seen that due to the closed state inside the positioning part, a small amount of airflow passes through the gap between the protective cover and the positioning part during the negative pressure dust extraction process, but there is still a dead corner in the welding area, which poses a risk of dust retention.

[0045] Therefore, the protective cover 2 in this embodiment adopts a single-pipe design with one dust suction hole 22. Compared with the dual-pipe design with two dust suction holes, the dust suction holes do not achieve an increase in the wind speed in the welding area under the same set wind speed conditions, and a large amount of air source is wasted. Therefore, the protective cover 2 is designed with a single gas pipe 4, which has a better dust extraction effect.

[0046] As a further preferred embodiment, the dust suction hole 22 is provided on the side of the protective cover 2 close to the rotation axis Z, and multiple gas pipelines 4 are circumferentially spaced around the rotation axis Z. The gas pipelines 4 can be rationally arranged in the middle area of the turret mechanism 1, effectively shortening the circulation distance of the dust extraction gas. In addition, the end of the gas pipeline 4 away from the protective cover 2 is connected to the adapter box 45, and the rotating interface 40 is provided on the side of the adapter box 45 away from the turret base 10. Multiple adapter boxes 45 are spliced into a ring around the rotation axis Z. The annular contours of the multiple adapter boxes 45 can operate coaxially with the turret base 10, so that each gas pipeline 4 can be accurately connected to the first interface 31 of the dust extraction housing 3 when it corresponds to the welding position 5.

[0047] In this embodiment, an annular dust extraction chamber 30 is provided within the dust extraction housing 3. The annular dust extraction chamber 30 is arranged circumferentially around the rotation axis Z. A second port 32 is provided on the side of the dust extraction housing 3 away from the turret base 10. The second port 32 is fixedly connected to a main dust extraction line 33. The annular dust extraction chamber 30 of the dust extraction housing 3 closely matches the annular profiles of the multiple adapter boxes 45. The main dust extraction line 33 serves as a connecting portion, thereby reliably securing the dust extraction housing 3.

[0048] The rotating interface 40 is in sliding sealing cooperation with the dust extraction shell 3, and the first interface 31 matches the contour shape of the rotating interface 40, which not only ensures the smoothness of the relative movement between the adapter box 45 and the dust extraction shell 3, but also ensures the sealing effect of the rotating interface 40 of the gas pipeline 4 and the first interface 31 of the dust extraction shell 3.

[0049] In this embodiment, the gas conduit 4 includes an inclined section 41; one end of the inclined section 41 is connected to the dust collection hole 22, and the other end extends obliquely toward the dust extraction housing 3. Furthermore, the gas conduit 4 includes a first transition section 42, an arcuate section 43, and a second transition section 44. The inclined section 41 is sequentially connected to the first transition section 42, the arcuate section 43, and the second transition section 44 in a direction away from the protective cover 2. The design of the inclined section 41 at the dust collection hole 22 of the gas conduit 4 creates a smooth transition from the protective cover 2 to the dust extraction housing 3, improving the smoothness of the dust extraction airflow.

[0050] In addition, the turret mechanism 1 is further provided with a central axis platform 6 corresponding to the rotation axis Z. The central axis platform 6 and the dust extraction shell 3 are arranged at intervals along the rotation axis Z. The central axis platform 6 serves as a fixed basis for multiple gas pipelines 4 and the adapter box 45, ensuring the stability of the gas pipelines 4 and the adapter box 45 on the turret mechanism 1, and also avoiding the central axis platform 6 from interfering with the dust extraction shell 3 and affecting the normal welding dust removal work.

[0051] It should be noted that the positioning portion 11 includes a collector plate jig 12 and a cell fixture 13. The collector plate jig 12 is positioned on the side of the turret base 10 facing the dust extraction housing 3, while the cell fixture 13 is positioned on the side of the turret base 10 facing away from the dust extraction housing 3. The collector plate jig 12 secures the collector plate 14 to be welded on the side facing the dust extraction housing 3, while the cell fixture 13 secures the cell 15 to be welded on the side facing away from the dust extraction housing 3. The laser welds the collector plate 14 through the welding process hole 21 of the protective cover 2, ensuring the accuracy and quality of the laser welding.

[0052] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A turret dust removal device, characterized in that: include: A turret mechanism (1), the turret mechanism (1) having a rotation axis Z and a turret base (10), the turret base (10) being provided with a plurality of positioning portions (11) spaced circumferentially around the rotation axis Z; A dust extraction housing (3), wherein the turret mechanism (1) is rotatable relative to the dust extraction housing (3) about the rotation axis Z, and the dust extraction housing (3) is provided with a first interface (31), the first interface (31) being arranged toward the turret base (10); the first interface (31) is opposite to the turret base (10) along the rotation axis Z; A protective cover (2), wherein a plurality of protective covers (2) are provided, and the plurality of protective covers (2) are respectively fixedly mounted on a side of the positioning portion (11) facing the dust extraction housing (3), and the protective cover (2) is provided with a welding process hole (21); The protective cover (2) is further provided with a dust suction hole (22), the dust suction hole (22) being connected to a gas pipeline (4), and the end of the gas pipeline (4) away from the protective cover (2) being provided with a rotating interface (40); the rotating interface (40) is rotated and switched relative to the dust extraction housing (3), so that when the protective cover (2) corresponds to the welding position, the rotating interface (40) is connected to the first interface (31); The dust suction hole (22) is opened on the side of the protective cover (2) close to the rotation axis Z, and the plurality of gas pipelines (4) are circumferentially spaced around the rotation axis Z; An annular dust extraction cavity (30) is provided inside the dust extraction housing (3), and the annular dust extraction cavity (30) is arranged circumferentially around the rotation axis Z. A second interface (32) is provided on a side of the dust extraction housing (3) away from the turret base (10), and the second interface (32) is fixedly connected to a dust extraction main line (33); The end of the gas pipeline (4) away from the protective cover (2) is connected to an adapter box (45), the rotation interface (40) is opened on a side of the adapter box (45) away from the turret base (10), and a plurality of the adapter boxes (45) are spliced into a ring around the rotation axis Z; The rotating interface (40) is in sliding sealing cooperation with the dust extraction housing (3), and the first interface (31) matches the contour shape of the rotating interface (40); The dust extraction housing (3) remains fixed and stably connected to the dust extraction main line (33); the dust extraction housing (3) does not rotate with the turret mechanism (1); the dust extraction housing (3) serves as a negative pressure source for the entire turret dust removal device; the protective cover (2) can move synchronously with the turret base (10); The turret mechanism (1) is further provided with a central axis platform (6) corresponding to the rotation axis Z, and the central axis platform (6) and the dust extraction housing (3) are arranged at intervals along the rotation axis Z.

2. The turret dust removal device according to claim 1, characterized in that: A spherical cavity (20) is provided inside the protective cover (2), and the spherical cavity (20) is arranged to cover the side of the positioning portion (11) facing the dust extraction housing (3).

3. The turret dust removal device according to claim 1, characterized in that: The gas pipeline (4) comprises an inclined section (41); one end of the inclined section (41) is connected to the dust suction hole (22), and the other end extends obliquely toward the dust extraction housing (3).

4. The turret dust removal device according to claim 3, characterized in that: The gas pipeline (4) further comprises a first transition section (42), an arc section (43) and a second transition section (44), and the inclined section (41) is sequentially connected to the first transition section (42), the arc section (43) and the second transition section (44) in a direction away from the protective cover (2).

5. The turret dust removal device according to claim 1, characterized in that: The positioning portion (11) comprises a current collecting plate fixture (12) and a battery cell fixture (13); the current collecting plate fixture (12) is arranged on the side of the turret base (10) facing the dust extraction housing (3); and the battery cell fixture (13) is arranged on the side of the turret base (10) facing away from the dust extraction housing (3).

Images