Sheet metal air cylinder driven wind ring welding tool

Abstract

The utility model belongs to sheet metal wind ring welding technical field discloses a kind of sheet metal wind ring welding tool of air cylinder drive, including base, compression assembly and drive assembly, the top of base is equipped with round hole;Compression assembly is installed in round hole, and annular gap is formed between the outer wall of compression assembly and the inner wall of round hole, drive assembly includes cylinder, and the piston rod of cylinder is connected with compression assembly transmission by linkage, the round hole of the top of base and wind ring positioning hole cooperation of the utility model, through physical structure forced guaranteeing concentricity, avoid artificial calibration error, solve the problem of "shape deviation after welding caused by circle center deviation" in traditional process, ensure the dimensional accuracy of wind ring annular structure, four sector plates are synchronously moved radially through guide slide, from circumferential even compression wind ring, avoid local deformation or gap uneven caused by single point or asymmetric compression, reduce welding blowhole, incomplete penetration and other defects, improve welding joint strength and sealing property.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal fan ring welding technology, and in particular to a cylinder-driven sheet metal fan ring welding fixture. Background Technology

[0002] Sheet metal fan rings are typically assembled from a connecting seat and a circular fan ring. During welding, it is crucial to ensure a tight fit between the seams; otherwise, the overall shape may deviate after welding. Currently, manual support is used for welding this type of workpiece, which has the following significant drawbacks:

[0003] Positioning accuracy depends on operational experience: When manually calibrating the coaxiality of the center, it is difficult to achieve high-precision alignment by visual inspection or simple tools, which can easily lead to loose fit between the wind ring and the connecting seat, resulting in problems such as excessive ellipticity and center offset after welding.

[0004] Poor uniformity of clamping force: Manual support cannot achieve uniform application of circumferential pressure. Often, due to insufficient or excessive local clamping force, the weld gap is too wide in some areas (which easily produces porosity and incomplete penetration) or the component is deformed (such as the circular wind ring becoming out of round), affecting the welding strength and appearance quality.

[0005] Low production efficiency: Manual operation requires adjusting the positioning and clamping state of each piece individually, and each welding process takes a long time and cannot meet the needs of mass production.

[0006] To address this, we propose a cylinder-driven sheet metal fan ring welding fixture. Utility Model Content

[0007] The purpose of this invention is to provide a cylinder-driven sheet metal fan ring welding fixture, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art.

[0008] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0009] A cylinder-driven sheet metal fan ring welding fixture includes a base, the top of which has a circular hole.

[0010] A clamping assembly for pressing a circular fan ring onto a connecting seat, the clamping assembly being installed inside the circular hole, and an annular gap being formed between the outer wall of the clamping assembly and the inner wall of the circular hole, into which the circular fan ring is inserted.

[0011] A drive assembly, the drive assembly including a cylinder, the piston rod of the cylinder being kinetically connected to the clamping assembly via a linkage.

[0012] According to the present invention, a cylinder-driven sheet metal fan ring welding fixture is provided, wherein the clamping assembly includes a support member and a fan-shaped plate, the support member includes a fixed seat, the fixed seat is fixedly installed inside the circular hole, and four fan-shaped plates are provided, all four fan-shaped plates being slidably installed above the fixed seat.

[0013] In a cylinder-driven sheet metal fan ring welding fixture according to the present invention, a support plate is fixedly connected to the top of the fixed base, four support plates are provided, a guide slide is left between two adjacent support plates, and a guide rod is fixedly connected to the bottom of the fan-shaped plate, the guide rod is slidably disposed inside the guide slide.

[0014] In a cylinder-driven sheet metal fan ring welding fixture according to the present invention, a reinforcing rib is fixedly connected between the side of the fixed seat and the bottom of the support plate.

[0015] According to the present invention, a cylinder-driven sheet metal fan ring welding fixture is provided, wherein the linkage component includes a block, and connecting ears are fixedly connected to the four sides of the block. The end of the guide rod near the center of the fan-shaped plate is hinged to the connecting ears through a connecting plate.

[0016] In a cylinder-driven sheet metal fan ring welding fixture according to the present invention, the guide rod has an assembly groove at one end near the center of the fan-shaped plate, the fan-shaped plate has a hinge hole connected to the assembly groove at one end near the assembly groove, and the connecting plate is rotatably mounted in the assembly groove by a pin.

[0017] According to the present invention, a cylinder-driven sheet metal fan ring welding fixture is provided, wherein the base is made of stainless steel sheet with a thickness of 2mm.

[0018] In a cylinder-driven sheet metal fan ring welding fixture according to the present invention, the support plate is a 1.5mm thick stainless steel plate.

[0019] In a cylinder-driven sheet metal fan ring welding fixture according to the present invention, the fan-shaped plate and the guide rod are both made of 6061 aluminum alloy.

[0020] According to the present invention, a cylinder-driven sheet metal fan ring welding fixture is provided, wherein the linkage component is made of stainless steel.

[0021] This utility model has at least the following beneficial effects:

[0022] The round hole at the top of the base matches the positioning hole of the wind ring, and the coaxiality of the center is forcibly guaranteed by the physical structure, avoiding the error of manual calibration, solving the problem of "the shape deviation after welding caused by the offset of the center" in the traditional process, ensuring the dimensional accuracy of the wind ring ring structure. The four fan-shaped plates move radially synchronously through the guide slide, and press the wind ring evenly from the circumference, avoiding local deformation or uneven gaps caused by single point or asymmetrical pressing, reducing defects such as welding porosity and incomplete penetration, and improving the strength and sealing of the welded joint.

[0023] The cylinder automatically completes the clamping action through the linkage, without the need for manual support, shortening the time of a single operation and making it suitable for mass production; at the same time, it reduces the frequency of operators' contact with the welding area, reducing labor intensity and safety risks;

[0024] The air ring is quickly inserted and positioned through the annular gap, and the cylinder-driven clamping / releasing process can be completed within seconds. Compared with the traditional manual adjustment and clamping method, it greatly improves clamping efficiency and shortens downtime. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0026] Figure 1 This is a schematic diagram of the structural appearance of this utility model;

[0027] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0028] Figure 3 This is one of the partial structural schematic diagrams of this utility model;

[0029] Figure 4 This is a second partial structural schematic diagram of the present invention;

[0030] Figure 5 This is the third partial schematic diagram of the mechanism of this utility model;

[0031] Figure 6 This is a schematic diagram of an existing sheet metal fan head structure.

[0032] Explanation of icon numbers:

[0033] 1. Base; 101. Round hole;

[0034] 2. Clamping assembly; 201. Support component; 2011. Fixing base; 2012. Support plate; 2013. Guide slide; 2014. Reinforcing rib; 202. Sector plate; 203. Guide rod; 204. Assembly slot; 205. Hinge hole;

[0035] 3. Drive assembly; 301. Cylinder; 302. Block; 303. Connecting lug; 304. Connecting plate;

[0036] 4. Annular gap; 5. Connecting seat; 6. Circular wind ring. Detailed Implementation

[0037] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0038] Please refer to Figures 1 to 6 As shown, an embodiment of this utility model provides a cylinder-driven sheet metal fan ring welding fixture, comprising:

[0039] Base 1, with a round hole 101 on the top;

[0040] The clamping assembly 2 is used to clamp the circular wind ring 6 onto the connecting seat 5 and is installed in the circular hole 101. Its outer wall and the inner wall of the circular hole 101 form an annular gap 4 for the circular wind ring 6 to be inserted.

[0041] The drive assembly 3 includes a cylinder 301, whose piston rod is connected to the clamping assembly 2 via a linkage.

[0042] In use, insert the circular fan ring 6 into the annular gap 4 of the circular hole 101 of the base 1, and use the circular hole 101 and the fan ring positioning hole to calibrate the center; the piston rod of the cylinder 301 drives the linkage component, which drives the pressing component 2 to move radially, pressing the fan ring 6 onto the connecting seat 5 to ensure a tight weld gap.

[0043] In this embodiment, the clamping assembly 2 includes a support member 201 and a sector plate 202. The support member 201 includes a fixing seat 2011, which is fixedly installed inside the circular hole 101. Four sector plates 202 are provided, and all four sector plates 202 are slidably installed above the fixing seat 2011.

[0044] The fixed base 2011 is fixed in the round hole 101 of the base as a support reference; the four sector plates 202 slide radially with the fixed base 2011 as the center, and by synchronously expanding or contracting, they uniformly press the circular wind ring 6 from the circumference to avoid deformation caused by uneven local force.

[0045] In this embodiment, a support plate 2012 is fixedly connected to the top of the fixed base 2011. Four support plates 2012 are provided. A guide slide 2013 is left between two adjacent support plates 2012. A guide rod 203 is fixedly connected to the bottom of the fan-shaped plate 202. The guide rod 203 is slidably disposed inside the guide slide 2013.

[0046] Four support plates 2012 form a cross-shaped frame on top of the fixed base 2011. The guide slide 2013 between adjacent support plates provides a radial sliding track for the guide rod 203 at the bottom of the sector plate 202, restricting the vertical displacement of the sector plate and ensuring that it moves only radially along the base, thereby achieving precise guidance and clamping direction control.

[0047] Furthermore, a reinforcing rib 2014 is fixedly connected between the side of the fixing base 2011 and the bottom of the support plate 2012.

[0048] The reinforcing rib 2014 connects the fixed base 2011 and the support plate 2012, enhances the structural rigidity of the support member 201, prevents the support plate 2012 and the guide slide 2013 from bending or deforming due to force during the pressing process, and ensures the movement accuracy and stability of the fan-shaped plate 202.

[0049] Furthermore, the linkage includes a block 302, with connecting ears 303 fixedly connected to all four sides of the block 302. The end of the guide rod 203 near the center of the sector plate 202 is hinged to the connecting ears 303 via a connecting plate 304.

[0050] The piston rod of cylinder 301 drives block 302 to move vertically downward. Block 302 pushes connecting plate 304 through connecting ear 303, which in turn drives guide rod 203 to move radially along guide slide 2013. Due to the symmetrical design of block 302, the four guide rods 203 are subjected to force synchronously, ensuring that the four sector plates 202 are evenly unfolded and achieving consistency of circumferential clamping force.

[0051] Furthermore, the guide rod 203 has an assembly groove 204 at one end near the center of the sector plate 202, and the sector plate 202 has a hinge hole 205 that communicates with the assembly groove 204 at one end near the assembly groove 204. The connecting plate 304 is rotatably installed in the assembly groove 204 by means of a pin.

[0052] The pin can rotate within the assembly slot 204 to adapt to the angular changes when the sector plate 202 moves radially, avoiding motion jamming or stress concentration caused by rigid connection, and ensuring flexible and smooth transmission.

[0053] In this embodiment, the base 1 is made of stainless steel sheet with a thickness of 2mm. The base 1 made of 2mm thick stainless steel sheet has high rigidity and corrosion resistance, which can stably support the circular fan ring 6 and the clamping assembly 2, avoid the coaxiality deviation of the circular hole 101 due to the deformation of the base, and ensure the positioning accuracy of the fan ring.

[0054] Furthermore, the support plate 2012 is a 1.5mm thick stainless steel plate. The 1.5mm thick stainless steel support plate 2012 forms a rigid guide slide 2013, which can not only withstand the frictional load when the fan-shaped plate 202 slides, but also prevent the support plate from deforming due to being too thin, thus ensuring the accuracy of the movement trajectory of the guide rod 203.

[0055] In this embodiment, both the sector plate 202 and the guide rod 203 are made of 6061 aluminum alloy. The lightweight properties of 6061 aluminum alloy can reduce the motion inertia of the clamping assembly 2 and reduce the load on the cylinder 301; at the same time, its moderate strength meets the force requirements when the sector plate 202 clamps the wind ring, avoiding deformation or wear due to the material being too soft.

[0056] In this embodiment, the linkage is made of stainless steel. Stainless steel linkages have high wear resistance and corrosion resistance, and can maintain structural strength and transmission accuracy in frequent reciprocating motion, ensuring that the power of cylinder 301 is stably transmitted to clamping assembly 2, and extending the service life of the tooling.

[0057] Working principle:

[0058] Place the bottom of the circular fan ring 6 tightly against the top surface of the base 1 and insert it along the annular gap 4 of the circular hole 101 of the base, so that the positioning hole of the fan ring is aligned with the circular hole 101 of the base, ensuring that the center of the circle is coaxial.

[0059] The piston rod of control cylinder 301 moves downward, causing the linkage to move vertically downward in sync.

[0060] The linkage converts vertical motion into radial motion through a hinge structure, pushing the guide rod 203 to slide around along the guide slide 2013 of the support plate 2012.

[0061] Four fan-shaped plates 202 expand radially in sync with the guide rod 203, their outer walls closely adhering to the inner wall of the wind ring 6, pressing the wind ring evenly onto the connecting seat 5, ensuring a tight fit of the welded seams.

[0062] Welding is performed at the gap between the wind ring 6 and the connecting seat 5. Due to the uniform pressing of the fan-shaped plate 202, defects such as porosity and incomplete penetration caused by excessive gap or local deformation during the welding process can be avoided.

[0063] After welding is completed, the piston rod of the control cylinder 301 retracts upward, and the linkage drives the sector plate 202 to move along the guide slide 2013 towards the center, releasing the air ring 6.

[0064] Remove the welded wind turbine assembly from the circular hole 101 in the base.

[0065] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the present invention's conception through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A cylinder-driven sheet metal fan ring welding fixture, characterized in that, include: A base (1) has a circular hole (101) on its top; A clamping assembly (2) for pressing a circular wind ring (6) onto a connecting seat (5), the clamping assembly (2) being installed in the circular hole (101), and an annular gap (4) formed between the outer wall of the clamping assembly (2) and the inner wall of the circular hole (101) by the circular wind ring (6) being inserted. The drive assembly (3) includes a cylinder (301), and the piston rod of the cylinder (301) is connected to the clamping assembly (2) via a linkage.

2. The cylinder-driven sheet metal fan ring welding fixture according to claim 1, characterized in that: The clamping assembly (2) includes a support member (201) and a sector plate (202). The support member (201) includes a fixing seat (2011), which is fixedly installed inside the circular hole (101). There are four sector plates (202), and all four sector plates (202) are slidably installed above the fixing seat (2011).

3. The cylinder-driven sheet metal fan ring welding fixture according to claim 2, characterized in that: The top of the fixed base (2011) is fixedly connected to a support plate (2012), and four support plates (2012) are provided. A guide slide (2013) is left between two adjacent support plates (2012). The bottom of the fan-shaped plate (202) is fixedly connected to a guide rod (203), and the guide rod (203) is slidably disposed inside the guide slide (2013).

4. The cylinder-driven sheet metal fan ring welding fixture according to claim 3, characterized in that: A reinforcing rib (2014) is fixedly connected between the side of the fixing base (2011) and the bottom of the support plate (2012).

5. The cylinder-driven sheet metal fan ring welding fixture according to claim 3, characterized in that: The linkage component includes a block (302), and each of the four sides of the block (302) is fixedly connected with a connecting ear (303). The end of the guide rod (203) near the center of the fan-shaped plate (202) is hinged to the connecting ear (303) through a connecting plate (304).

6. The cylinder-driven sheet metal fan ring welding fixture according to claim 5, characterized in that: The guide rod (203) has an assembly groove (204) at one end near the center of the sector plate (202), and the sector plate (202) has a hinge hole (205) connected to the assembly groove (204) at one end near the assembly groove (204). The connecting plate (304) is rotatably installed in the assembly groove (204) by a pin.

7. The cylinder-driven sheet metal fan ring welding fixture according to claim 1, characterized in that: The base (1) is made of stainless steel sheet with a thickness of 2mm.

8. The cylinder-driven sheet metal fan ring welding fixture according to claim 3, characterized in that: The support plate (2012) is a 1.5mm thick stainless steel plate.

9. The cylinder-driven sheet metal fan ring welding fixture according to claim 3, characterized in that: Both the sector plate (202) and the guide rod (203) are made of 6061 aluminum alloy.

10. A cylinder-driven sheet metal fan ring welding fixture according to claim 5, characterized in that: The linkage component is made of stainless steel.

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