A welding positioning tool

Abstract

The application relates to a welding positioning tool and relates to the technical field of cooler upper cover processing, which comprises a first positioning assembly, the first positioning assembly comprises a bottom plate and a plurality of first pressing members installed on the bottom plate, a plurality of positioning columns for positioning a cover plate are arranged on the bottom plate, first pressing heads of the first pressing members act on the cover plate to press or loosen the cover plate on the bottom plate; a second positioning assembly comprises a base plate in a hollowed-out mode and a plurality of second pressing members installed on the base plate, the base plate is arranged above the cover plate through the positioning columns, the base plate is provided with a reserved hole for positioning a reinforcing rib to a position of the cover plate, second pressing heads of the second pressing members act on the reinforcing rib to press or loosen the reinforcing rib on the base plate. The application has the effects that manual repeated positioning is not needed, manual operation errors are reduced, meanwhile, the influence of thermal deformation and external force vibration can be resisted during the welding process, the welding position precision is guaranteed, and the production efficiency and product qualification rate are improved.

Description

Technical Field

[0001] This application relates to the technical field of cooler cover processing, and in particular to a welding positioning fixture. Background Technology

[0002] In the production of the cooler's top cover, the process of welding reinforcing ribs to the cover plate requires ensuring the relative positional accuracy of the ribs and the cover plate. This is crucial to guarantee that the structural strength and dimensions of the finished cover meet production and usage requirements. Traditional methods often rely on manual alignment to position the ribs and cover plate. This requires repeated alignment for each batch, which is not only inefficient but also susceptible to displacement due to welding heat deformation and external vibrations, leading to inconsistent welding accuracy and a lower yield rate. Utility Model Content

[0003] To improve the problem of low efficiency and reduced pass rate caused by manually aligning and positioning the reinforcing ribs and cover plates, which requires repeated positioning each time in batch production, this application provides a welding positioning fixture.

[0004] This application provides a welding positioning fixture, which adopts the following technical solution: A welding positioning fixture for welding reinforcing ribs to a cover plate, comprising: The first positioning component includes a base plate and a plurality of first clamping members mounted on the base plate. The base plate is provided with a plurality of positioning posts for positioning the cover plate. The first pressure head of the first clamping member acts on the cover plate to press or release the cover plate on the base plate. The second positioning component includes a base plate with a hollowed-out shape and a plurality of second clamping members mounted on the base plate. The base plate is positioned above the cover plate by positioning posts. The base plate has a reserved hole for positioning the reinforcing rib to the position of the cover plate. The second pressure head of the second clamping member acts on the reinforcing rib to press or release the reinforcing rib on the base plate.

[0005] By adopting the above technical solution, the base plate provides stable support for the entire tooling. The positioning pins of the first positioning component position the cover plate, and together with the first pressure head of the first clamping component, fix the cover plate to the base plate, reducing displacement of the cover plate during welding. The base plate of the second positioning component is supported above the cover plate by positioning pins, and its reserved holes limit the position of the reinforcing ribs on the cover plate. The second pressure head of the second clamping component then presses the reinforcing ribs together, achieving precise alignment between the reinforcing ribs and the cover plate. The entire tooling eliminates the need for repeated manual positioning, reducing human error. Simultaneously, it resists the effects of thermal deformation and external vibration during welding, ensuring welding position accuracy and improving production efficiency and product qualification rate.

[0006] Optionally, the cover plate is provided with a plurality of first positioning holes corresponding to the positioning posts, and the base plate is provided with a plurality of second positioning holes corresponding to the positioning posts. By adopting the above technical solution, the first positioning holes of the cover plate cooperate with the positioning posts of the base plate to achieve rapid positioning of the cover plate on the base plate and ensure the consistency of the cover plate position; the second positioning holes of the base plate are fitted onto the positioning posts, so that the base plate is accurately positioned above the cover plate, and the relative position of the base plate and the cover plate is fixed, thereby ensuring that the reserved holes on the base plate correspond precisely to the target welding positions of the cover plate, improving the continuity and accuracy of positioning as a whole, and providing a foundation for the precise positioning of the reinforcing ribs.

[0007] Optionally, the reserved hole includes a processing area and a positioning area, with the positioning area provided on both sides of the processing area, and the reinforcing rib located within the processing area and the positioning area. By adopting the above technical solution, the positioning area is used to limit the ends or edges of the reinforcing rib, ensuring accurate initial positioning of the reinforcing rib during placement; the processing area provides operating space for the welding area between the reinforcing rib and the cover plate, facilitating the insertion of welding equipment for welding operations; simultaneously, the positioning areas on both sides prevent the reinforcing rib from shifting due to stress or thermal deformation during welding, ensuring positioning stability and welding operability.

[0008] Optionally, the positioning area is provided with a first positioning reference surface and a second positioning reference surface, and the reinforcing rib is located between the first positioning reference surface and the second positioning reference surface. By adopting the above technical solution, the first positioning reference surface and the second positioning reference surface form a bidirectional limiting mechanism, and the two sides of the reinforcing rib are respectively in contact with the two reference surfaces, which can limit the lateral displacement of the reinforcing rib, ensure that the axis or edge of the reinforcing rib is completely aligned with the preset position of the cover plate, reduce welding accuracy errors caused by the inclination or misalignment of the reinforcing rib, and further improve the positioning accuracy.

[0009] Optionally, the processing area is provided with a guide reference surface, and the reinforcing rib is attached to the guide reference surface. By adopting the above technical solution, the guide reference surface provides a positioning reference for the length direction of the reinforcing rib. When the reinforcing rib is placed in contact with the guide reference surface, its length direction is consistent with the preset welding trajectory of the cover plate, reducing the offset of the reinforcing rib in the length direction. It cooperates with the reference surface of the positioning area to form a three-dimensional positioning, so as to ensure the overall positional accuracy of the reinforcing rib.

[0010] Optionally, the substrate has multiple hollow areas, and one hollow area is provided on one side of the processing area. By adopting the above technical solution, the hollow areas reduce the overall weight of the substrate, making it easier to handle and install the tooling; at the same time, the hollow area on the processing area side provides a channel for heat dissipation during the welding process, reducing the impact of welding heat accumulation on the substrate and workpiece. In addition, it also makes it easier for operators to observe the welding situation, adjust the operation in a timely manner, and improve the controllability of the welding process.

[0011] Optionally, both the first clamping member and the second clamping member can be detachably mounted on the base plate.

[0012] By adopting the above technical solution, when it is necessary to replace cover plates or reinforcing ribs of different specifications, the appropriate clamping parts can be quickly disassembled and replaced, which improves the versatility of the tooling. At the same time, if the clamping parts are worn or damaged, they can be replaced separately without replacing the entire tooling, which reduces maintenance costs and extends the overall service life of the tooling.

[0013] Optionally, the first clamping component includes a first base, which is detachably mounted on the base plate. A first pressure rod is hinged to one end of the first base. A first pressure head for clamping or loosening the cover plate is adjustable at one end of the first pressure rod. A first connecting rod is hinged to the outside of the first base. The other end of the first connecting rod is located above the first base and hinged to a first limiting seat. A first handle rod is installed inside the first limiting seat. The first handle rod is hinged to the other end of the first connecting rod, and its end is hinged to the first base. By adopting the above technical solution, the first handle rod, the first connecting rod, and the first pressure rod form a linkage mechanism. The operator can rotate the first pressure rod by turning the first handle rod, thereby clamping or loosening the cover plate with the first pressure head. This operation is convenient and labor-saving. The height of the first pressure head is adjustable to accommodate cover plates of different thicknesses, ensuring that the clamping force is evenly applied to the cover plate surface. The first limiting seat limits the rotation angle of the first handle rod, preventing excessive clamping and damage to the cover plate, thus improving operational safety and reliability.

[0014] Optionally, the second clamping member includes a support and a second base. The support is mounted on the base plate, and the second base is detachably mounted on the support. A second pressure rod is hinged to one end of the second base. A second pressure head for clamping or loosening the reinforcing rib is provided at one end of the second pressure rod with adjustable height. A second connecting rod is hinged to the outside of the second base. The other end of the second connecting rod is located above the second base and is hinged to a second limiting seat. A second handle rod is installed inside the second limiting seat. The second handle rod is hinged to the other end of the second connecting rod, and the end of the second handle rod is hinged to the second base. By adopting the above technical solution, the support increases the installation height of the second base, enabling the second pressure head to accurately act on the reinforcing ribs above the substrate; the second base is detachable, facilitating the adjustment of the installation position of the second clamping component according to the position of the reinforcing ribs; the linkage structure of the second pressure rod and the second handle rod enables rapid clamping and loosening of the reinforcing ribs; the height of the second pressure head is adjustable to adapt to reinforcing ribs of different specifications, ensuring stable clamping effect; the second limit seat restricts the rotation angle of the handle, preventing the reinforcing ribs from being excessively squeezed and deformed, thus ensuring the structural integrity of the reinforcing ribs.

[0015] Optionally, a pressure sleeve is fitted onto the end of both the first and second pressure heads near the substrate. By adopting the above technical solution, the pressure sleeve is made of elastic or wear-resistant material, which can reduce direct rigid contact between the pressure head and the cover plate and reinforcing rib during the pressing process, preventing the workpiece surface from being crushed or scratched; at the same time, the elastic pressure sleeve can increase friction, improve the stability of pressing, reduce the small displacement of the workpiece during the welding process, and further ensure positioning accuracy.

[0016] In summary, this application includes at least one of the following beneficial technical effects: 1. Through the coordinated action of the first positioning component and the second positioning component, this tooling achieves precise positioning and stable fixation of the cover plate and the reinforcing rib, replacing manual alignment, reducing the time spent on repetitive positioning, improving production efficiency, and effectively resisting the effects of welding heat deformation and external vibration, ensuring welding position accuracy, and reducing rework rate and scrap rate. 2. The setup of the pre-drilled hole processing area and positioning area, as well as the linkage structure of the first and second clamping components, ensures positioning accuracy, welding operability, and ease of operation, making the tooling adaptable to workpieces of different specifications and improving its versatility and practicality. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of an embodiment of this application; Figure 2 This is a structural schematic diagram of the base plate, the first clamping member, and the second clamping member in an embodiment of this application; Figure 3 This is a schematic diagram of the cover plate in an embodiment of this application; Figure 4 This is a schematic diagram of the substrate structure in an embodiment of this application; Figure 5 This is a schematic diagram of the structure of the first clamping member in the embodiments of this application; Figure 6 This is a schematic diagram of the structure of the second clamping member in the embodiments of this application.

[0018] Explanation of reference numerals in the attached figures: 1. First positioning component; 11. Base plate; 111. Positioning post; 12. First clamping component; 121. First base; 122. First pressure rod; 1221. First pressure head; 1222. Pressure sleeve; 123. First connecting rod; 124. First limiting seat; 125. First handle rod; 2. Second positioning component; 21. Base plate; 211. Second positioning hole; 212. Reserved hole; 2121. Processing area; 2122. Positioning area; 213. Hollowed-out area; 22. Second clamping component; 221. Support; 222. Second base; 223. Second pressure rod; 2231. Second pressure head; 224. Second limiting seat; 225. Second handle rod; 226. Second connecting rod; 3. Cover plate; 31. First positioning hole; 4. Reinforcing rib. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0023] This application discloses a welding positioning fixture, referring to... Figure 1 and Figure 2 A welding positioning fixture for welding reinforcing ribs 4 to cover plates 3 includes a first positioning component 1 and a second positioning component 2. The first positioning component 1 includes a base plate 11 and a plurality of first clamping members 12 mounted on the base plate 11. The base plate 11 is provided with a plurality of positioning posts 111 for positioning the cover plates 3. The first pressure head 1221 of the first clamping member 12 acts on the cover plates 3 to press or release the cover plates 3 on the base plate 11. The second positioning component 2 includes a base plate 21 with a hollowed-out shape and a plurality of second clamping members 22 mounted on the base plate 11. The base plate 21 is positioned above the cover plate 3 by positioning posts 111. The base plate 21 has reserved holes 212 for positioning the reinforcing rib 4 to the position of the cover plate 3. The second pressure head 2231 of the second clamping member 22 acts on the reinforcing rib 4 to press or release the reinforcing rib 4 on the base plate 21.

[0024] In this welding positioning fixture, the base plate 11 provides an installation platform for the positioning posts 111, the first clamping member 12, and the second clamping member 22, bearing the weight of the cover plate 3, the base plate 21, and the reinforcing rib 4, ensuring the overall stability of the fixture. The positioning posts 111 cooperate with the cover plate 3 and the base plate 21 to define the position of the cover plate 3 on the base plate 11 and the position of the base plate 21 above the cover plate 3, ensuring that the relative positions of the three meet the preset welding size requirements. This replaces manual alignment, enabling rapid positioning of the cover plate 3 and the base plate 21, reducing positional deviations caused by human error, ensuring the consistency of positioning for each batch of workpieces, and providing a foundation for the precise welding of the reinforcing rib 4 to the cover plate 3.

[0025] The first clamping member 12 applies pressure to the cover plate 3 through the first pressure head 1221, fixing the cover plate 3 to the base plate 11. This prevents the cover plate 3 from shifting due to welding heat deformation, external force vibration, etc. during the welding process, ensuring the stability of the cover plate 3 during the welding process. It also avoids the relative positional accuracy of the reinforcing rib 4 and the cover plate 3 from exceeding the tolerance due to the offset of the cover plate 3, and ensures the structural strength and dimensional qualification of the product after welding.

[0026] Specifically, the first pressure head 1221 directly contacts the surface of the cover plate 3 and generates pressure under the drive of the first clamping member 12, thereby achieving the clamping or loosening operation of the cover plate 3. The first pressure head 1221 disperses the pressure through surface contact with the cover plate 3, avoiding excessive local pressure that could damage the surface of the cover plate 3. At the same time, the first pressure head 1221 can stably restrict the movement of the cover plate 3 in the clamping state, ensuring that the position of the cover plate 3 remains unchanged during the welding process.

[0027] The substrate 21 serves as the positioning carrier for the reinforcing rib 4. The shape and size of its reserved hole 212 are set according to the welding position of the reinforcing rib 4 and the cover plate 3, providing space for the placement and limiting of the reinforcing rib 4. At the same time, the hollowed-out structure is set as a reserved channel for welding operation, which facilitates the insertion of the welding gun, so that the reinforcing rib 4 can be quickly placed in the preset welding position without manual alignment, reducing the time cost of manual positioning. The hollowed-out structure does not hinder the welding operation and improves welding efficiency.

[0028] Specifically, the reserved hole 212 is opened according to the shape and welding position of the reinforcing rib 4, forming a circumferential limit on the reinforcing rib 4, ensuring that the lateral and longitudinal positions of the reinforcing rib 4 meet the requirements when it is placed. This method replaces manual visual alignment, limits the offset of the reinforcing rib 4 through physical structure, ensures the relative positional accuracy of the reinforcing rib 4 and the cover plate 3, and reduces welding quality problems caused by the skewed placement of the reinforcing rib 4.

[0029] The second clamping member 22 applies pressure to the reinforcing rib 4 placed in the reserved hole 212 through the second pressure head 2231, pressing the reinforcing rib 4 onto the substrate 21. Since the substrate 21 is hollowed out, the reinforcing rib 4 is pressed above the cover plate 3, preventing the reinforcing rib 4 from shifting due to thermal deformation, vibration, etc. during the welding process, thereby improving the product qualification rate.

[0030] Specifically, the second pressure head 2231 directly contacts the surface of the reinforcing rib 4 and generates pressure under the drive of the second clamping member 22 to realize the clamping or loosening operation of the reinforcing rib 4. The second pressure head 2231 is set according to the cross-sectional shape of the reinforcing rib 4 to ensure effective contact with the reinforcing rib 4 and restrict the movement of the reinforcing rib 4 by stabilizing the pressure. In the loosened state, it is convenient to pick up and put down the reinforcing rib 4, thus improving the operation efficiency.

[0031] This welding positioning fixture achieves precise positioning of the cover plate 3 and the base plate 21 through the positioning column 111. The cover plate 3 is fixed by the first clamping member 12 and the reinforcing rib 4 is fixed by the second clamping member 22. This replaces the traditional manual repetitive positioning steps, enabling the rapid clamping of the cover plate 3 and the reinforcing rib 4, improving efficiency, resisting the effects of thermal deformation and vibration during the welding process, ensuring that the relative positional accuracy of the reinforcing rib 4 and the cover plate 3 meets the production requirements, and improving the structural strength and dimensional qualification rate of the welded product.

[0032] refer to Figures 1-4The cover plate 3 is provided with a plurality of first positioning holes 31 corresponding to the positioning posts 111, and the base plate 21 is provided with a plurality of second positioning holes 211 corresponding to the positioning posts 111. The first positioning holes 31 cooperate with the positioning posts 111 on the base plate 11. Through the gap fit between the hole and the post, the lateral and longitudinal positions of the cover plate 3 on the base plate 11 are limited, ensuring that the installation reference of the cover plate 3 is aligned with the positioning reference of the base plate 11. This replaces manual visual alignment, realizes the rapid positioning of the cover plate 3, and reduces the positional deviation caused by differences in manual operation experience. At the same time, after the positioning post 111 passes through the first positioning hole 31, it can initially restrict the movement of the cover plate 3, providing a basis for the subsequent fixing of the first clamping member 12, and ensuring the positional accuracy of the cover plate 3 before welding. The second positioning hole 211 cooperates with the positioning post 111 on the base plate 11, so that the base plate 21 is positioned above the cover plate 3. Through the guiding effect of the positioning post 111, it is ensured that the reserved hole 212 of the base plate 21 corresponds one-to-one with the welding position of the reinforcing rib 4 on the cover plate 3, which meets the preset size requirements. Thus, the positioning can be quickly completed by the hole and post cooperation without the need for repeated manual adjustment of the position of the cover plate 3 and the base plate 21, reducing the repetitive positioning time in mass production and increasing the output per unit time. refer to Figure 1 and Figure 4 The reserved hole 212 includes a processing area 2121 and a positioning area 2122. Positioning areas 2122 are provided on both sides of the processing area 2121. The reinforcing rib 4 is located in the processing area 2121 and the positioning area 2122. The processing area 2121 is located in the middle of the reserved hole 212, providing operating space for the welding part of the reinforcing rib 4 and the cover plate 3, facilitating the welding torch to be inserted for welding operations, and at the same time accommodating the welding section of the reinforcing rib 4, ensuring that the weld can completely cover the preset connection area during welding, and ensuring the structural strength of the reinforcing rib 4 after welding.

[0033] Positioning areas 2122 are distributed on both sides of processing area 2121. By cooperating with the non-welded section of reinforcing rib 4, they provide lateral and longitudinal limits for reinforcing rib 4, preventing it from shifting or tilting during placement or welding. This ensures that the axis of reinforcing rib 4 is aligned with the preset welding trajectory of cover plate 3, replacing manual positioning. The physical structure constrains the position of reinforcing rib 4, reducing shifts caused by welding heat deformation and external vibration. The two positioning areas 2122 form a bidirectional limit, further improving the stability of reinforcing rib 4 positioning and providing a foundation for precise welding in processing area 2121. The processing area 2121 of the pre-drilled hole 212 works in conjunction with the positioning areas 2122. The positioning area 2122 constrains the position of reinforcing rib 4, while the processing area 2121 provides welding operation space, allowing reinforcing rib 4 to be precisely aligned with cover plate 3 and remain stable without manual alignment, ensuring that the relative positional accuracy of both meets production requirements during welding.

[0034] The positioning area 2122 is provided with a first positioning reference surface and a second positioning reference surface. The reinforcing rib 4 is located between the first positioning reference surface and the second positioning reference surface. The first positioning reference surface serves as a reference for one side of the positioning area 2122. By fitting with one side edge of the reinforcing rib 4, it defines a position boundary of the reinforcing rib 4 in the lateral direction, ensuring that one side of the reinforcing rib 4 is aligned with the preset welding reference line, reducing positional deviation caused by the unilateral tilt of the reinforcing rib 4, and ensuring the accuracy of the relative position of the reinforcing rib 4 and the cover plate 3. The second positioning reference surface is set opposite to the first positioning reference surface and is located on the other side of the positioning area 2122. By fitting with the other edge of the reinforcing rib 4, the position of the reinforcing rib 4 is defined from the other side in the lateral direction. It forms a bidirectional constraint with the first positioning reference surface, reducing the offset of the reinforcing rib 4 to the other side due to thermal deformation, external force vibration, etc. during the welding process, enhancing the positioning stability of the reinforcing rib 4, and ensuring that its lateral position always meets the welding requirements. The reinforcing rib 4, located between the first positioning reference plane and the second positioning reference plane, maintains its own lateral position stability, ensuring that its longitudinal axis is consistent with the preset welding trajectory of the cover plate 3. This ensures that the part in contact with the cover plate 3 accurately corresponds to the welding position, reduces uneven force caused by inaccurate positioning during welding, and improves the structural strength of the product after welding. The processing area 2121 is provided with a guide reference surface. The reinforcing rib 4 is attached to the guide reference surface. The guide reference surface provides a fitting reference for the reinforcing rib 4 through its own flat surface, which limits the longitudinal extension direction of the reinforcing rib 4 in the processing area 2121. This ensures that the length direction of the reinforcing rib 4 is consistent with the preset trajectory, reduces directional deviation during placement, and enables the reinforcing rib 4 to be quickly fitted into place. This ensures its longitudinal positional accuracy in the processing area 2121 and provides a stable positioning basis for subsequent welding operations. Multiple cutout areas 213 are formed on the substrate 21, and one cutout area 213 is provided on one side of the processing area 2121. The cutout area 213 on the substrate 21 forms a through space on the substrate 21, reducing the overall material usage of the substrate 21 and providing a channel for heat dissipation, preventing heat from accumulating locally. The cutout area 213 on one side of the processing area 2121 provides additional space for the welding operation of the processing area 2121, making it easier to observe the welding process, and at the same time providing a dissipation path for the heat generated during welding, maintaining the dimensional stability of the processing area 2121. Both the first clamping component 12 and the second clamping component 22 can be detachably mounted on the base plate 11. The first clamping component 12 can be detached from or installed on the base plate 11. According to the requirements of different specifications of workpieces, the appropriate clamping structure can be replaced, or it can be replaced separately when it is worn or damaged, so as to flexibly adapt to the clamping requirements of different workpieces. When the component is damaged, only the first clamping component 12 needs to be replaced, reducing maintenance costs and reducing the downtime of tooling. The second clamping component 22 can be removed or installed from the base plate 11, which makes it easy to adjust the installation position according to the size and shape of the reinforcing rib 4, or to replace it when it fails, without the need for changes to other components. When a component is damaged, it can be replaced separately, reducing maintenance costs and ensuring the continuous use of the tooling. refer to Figure 1 and Figure 5 The first pressing member 12 includes a first base 121, which is detachably mounted on the base plate 11. A first pressing rod 122 is hinged to one end of the first base 121. A first pressing head 1221 for pressing or releasing the cover plate 3 is provided at one end of the first pressing rod 122 with adjustable height. A first connecting rod 123 is hinged to the outside of the first base 121. The other end of the first connecting rod 123 is located above the first base 121 and is hinged to a first limiting seat 124. A first handle rod 125 is installed inside the first limiting seat 124. The first handle rod 125 is hinged to the other end of the first connecting rod 123, and the end of the first handle rod 125 is hinged to the first base 121.

[0035] The first base 121 provides a connecting fulcrum for components such as the first pressure rod 122 and the first connecting rod 123. It is fixed to the base plate 11 by a detachable installation method, determining the installation position of the entire clamping component. The first pressure rod 122 rotates around the hinge point under the action of the operating force, realizing the raising and lowering of the first pressure head 1221, thereby pressing or releasing the cover plate 3. By transmitting the force through the lever principle, the first pressure head 1221 can generate sufficient clamping force with a relatively small operating force, simplifying the operation process and improving the convenience of pressing or releasing. The first pressure head 1221 is in direct contact with the cover plate 3. Under the drive of the first pressure rod 122, it applies pressure to the cover plate 3 or releases pressure. Its height can be adjusted to fit cover plates 3 of different thicknesses. The first connecting rod 123 is used to transmit the force of the handle rod, drive the first pressure rod 122 to move synchronously, form a linkage structure, ensure the smooth movement of the pressure rod, and avoid damage to components due to uneven force. The first limiting seat 124 restricts the rotation angle of the first handle 125, preventing excessive rotation of the handle and excessive downward pressure of the pressure head, thus protecting the cover plate 3 and the clamping component and improving operational safety. The first handle 125 is for the operator to grip and apply force. Through its hinged connection with the first base 121 and the first connecting rod 123, it converts human force into the power to move the pressure lever. The extended lever arm of the first handle 125 makes it easier for the operator to quickly complete the clamping or releasing action, improving operational efficiency; the hinged structure ensures flexible movement and adapts to different operating force requirements. refer to Figure 1 and Figure 6The second clamping member 22 includes a support 221 and a second base 222. The support 221 is mounted on the base plate 11. The second base 222 is detachably mounted on the support 221. A second pressure rod 223 is hinged to one end of the second base 222. A second pressure head 2231 for pressing or loosening the reinforcing rib 4 is provided at one end of the second pressure rod 223 with adjustable height. A second connecting rod 226 is hinged to the outside of the second base 222. The other end of the second connecting rod 226 is located above the second base 222 and is hinged to a second limiting seat 224. A second handle rod 225 is installed inside the second limiting seat 224. The second handle rod 225 is hinged to the other end of the second connecting rod 226. The end of the second handle rod 225 is hinged to the second base 222.

[0036] Support 221 provides support and installation foundation for second base 222, determining the overall installation height and position of second clamping component 22, thereby ensuring that second pressure head 2231 can accurately act on reinforcing rib 4. Second base 222 provides connection fulcrum for components such as second pressure rod 223 and second connecting rod 226, serving as the assembly carrier for various moving parts. Its detachable design facilitates position adjustment or replacement to adapt to the clamping requirements of different reinforcing ribs 4. Second pressure rod 223 rotates around the hinge point under the driving force of operation, realizing the raising and lowering of second pressure head 2231, thereby clamping or loosening reinforcing rib 4. The lever principle amplifies the operating force, allowing the pressure head to generate sufficient clamping force with less manual effort, ensuring that reinforcing rib 4 is firmly attached. The rotating structure ensures smooth movement of the pressure head, facilitating rapid operation.

[0037] The second pressure head 2231 is in direct contact with the reinforcing rib 4. It applies or releases pressure under the action of the second pressure rod 223. Its height can be adjusted to fit the reinforcing rib 4 of different specifications. The second connecting rod 226 transmits the force of the second handle rod 225, driving the second pressure rod 223 to move synchronously, forming a linkage mechanism to ensure smooth movement of the pressure rod and reduce wear of components caused by uneven force.

[0038] The second limiting seat 224 restricts the rotation angle of the second handle rod 225, preventing excessive rotation of the handle rod from causing excessive downward pressure of the pressure head, protecting the reinforcing rib 4 and the clamping component, and ensuring operational safety. The second handle rod 225 serves as an operating component for the operator to grip and apply force. Through its hinged connection with the second base 222 and the second connecting rod 226, it converts human power into the power to move the pressure rod. The extended lever arm of the second handle rod 225 makes operation easier and facilitates quick completion of clamping or releasing actions, improving operational efficiency. The hinged structure ensures flexible movement and adapts to different operating force requirements.

[0039] Both the first pressure head 1221 and the second pressure head 2231 are fitted with a pressure sleeve 1222 at the end near the substrate 21. The pressure sleeve 1222 of the first pressure head 1221 is in direct contact with the surface of the cover plate 3. When the first pressure head 1221 applies pressure, it buffers the pressure through its own material properties, while increasing the contact area with the cover plate 3. This reduces the rigid contact between the first pressure head 1221 and the cover plate 3, which could cause scratches or dents on the surface of the cover plate 3, thus protecting the cover plate 3 from damage. The buffering effect makes the pressure transmission more uniform and prevents excessive local pressure from damaging the structure of the cover plate 3. The pressure sleeve 1222 of the second pressure head 2231 is in direct contact with the surface of the reinforcing rib 4. When the second pressure head 2231 applies pressure, it uses its own elasticity or toughness to disperse the pressure and conform to the outline of the reinforcing rib 4, reducing the indentation or deformation caused by the second pressure head 2231 to the reinforcing rib 4 and protecting the structural integrity of the reinforcing rib 4. The close contact with the reinforcing rib 4 enhances the friction, improves the stability of the pressing, and prevents the reinforcing rib 4 from sliding under pressure. The implementation process of a welding positioning fixture according to an embodiment of this application is as follows: Place the cover plate 3 on the base plate 11, so that the positioning pin 111 of the base plate 11 passes through the first positioning hole 31 of the cover plate 3, and complete the initial positioning of the cover plate 3; operate the handle of the first clamping member 12 to drive the first pressure rod 122 to rotate, so that the first pressure head 1221 presses down and fits against the surface of the cover plate 3, and the degree of clamping is limited by the first limiting seat 124, so that the cover plate 3 is firmly fixed on the base plate 11. The substrate 21 is placed above the cover plate 3, and the positioning post 111 passes through the second positioning hole 211 of the substrate 21 to ensure that the reserved hole 212 of the substrate 21 is aligned with the preset welding position of the cover plate 3; the hollow area 213 of the substrate 21 reserves space for subsequent welding operations, while reducing the overall weight. The reinforcing rib 4 is placed into the reserved hole 212 of the substrate 21, so that the two side edges of the reinforcing rib 4 are in contact with the first positioning reference surface and the second positioning reference surface of the positioning area 2122, and the length direction is in contact with the guide reference surface of the processing area 2121, thus completing the precise positioning of the reinforcing rib 4; the handle rod of the second clamping member 22 is operated to drive the second pressure rod 223 to rotate, so that the second pressure head 2231 presses down and clamps the reinforcing rib 4, and the pressure is controlled by the second limit seat 224 to fix the reinforcing rib 4 on the substrate 21. After positioning and fixing are completed, the contact area between the reinforcing rib 4 and the cover plate 3 is welded through the processing area 2121 of the pre-drilled hole 212 of the substrate 21. After welding is completed, the handle rods of the first and second clamping parts 22 are reversed to release the first pressure head 1221 and the second pressure head 2231. The substrate 21 and the welded workpiece are removed in sequence to complete one welding operation.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A welding positioning fixture for welding a reinforcing rib (4) to a cover plate (3), characterized in that: include The first positioning component (1) includes a base plate (11) and a plurality of first clamping members (12) mounted on the base plate (11). The base plate (11) is provided with a plurality of positioning posts (111) for positioning the cover plate (3). The first pressure head (1221) of the first clamping member (12) acts on the cover plate (3) to press or release the cover plate (3) on the base plate (11). The second positioning component (2) includes a base plate (21) with a hollowed-out shape and a plurality of second clamping members (22) mounted on the base plate (11). The base plate (21) is positioned above the cover plate (3) by a positioning post (111). The base plate (21) has a reserved hole (212) for positioning the reinforcing rib (4) to the position of the cover plate (3). The second pressure head (2231) of the second clamping member (22) acts on the reinforcing rib (4) to press or release the reinforcing rib (4) on the base plate (21).

2. The welding positioning fixture according to claim 1, characterized in that: The cover plate (3) is provided with a plurality of first positioning holes (31) corresponding to the positioning post (111), and the base plate (21) is provided with a plurality of second positioning holes (211) corresponding to the positioning post (111).

3. The welding positioning fixture according to claim 1, characterized in that: The reserved hole (212) includes a processing area (2121) and a positioning area (2122). The positioning area (2122) is provided on both sides of the processing area (2121). The reinforcing rib (4) is located in the processing area (2121) and the positioning area (2122).

4. The welding positioning fixture according to claim 3, characterized in that: The positioning area (2122) is provided with a first positioning reference surface and a second positioning reference surface, and the reinforcing rib (4) is located between the first positioning reference surface and the second positioning reference surface.

5. The welding positioning fixture according to claim 3, characterized in that: The processing area (2121) is provided with a guide reference surface, and the reinforcing rib (4) is attached to the guide reference surface.

6. The welding positioning fixture according to claim 3, characterized in that: The substrate (21) has a plurality of hollow areas (213), and one of the hollow areas (213) is provided on one side of the processing area (2121).

7. The welding positioning fixture according to claim 1, characterized in that: Both the first clamping member (12) and the second clamping member (22) can be detachably installed on the base plate (11).

8. The welding positioning fixture according to claim 1, characterized in that: The first clamping member (12) includes a first base (121), which is detachably mounted on the base plate (11). A first pressure rod (122) is hinged to one end of the first base (121). A first pressure head (1221) for pressing or releasing the cover plate (3) is provided at one end of the first pressure rod (122) with adjustable height. A first connecting rod (123) is hinged to the outside of the first base (121). The other end of the first connecting rod (123) is located above the first base (121) and is hinged to a first limiting seat (124). A first handle rod (125) is installed inside the first limiting seat (124). The first handle rod (125) is hinged to the other end of the first connecting rod (123), and the end of the first handle rod (125) is hinged to the first base (121).

9. The welding positioning fixture according to claim 1, characterized in that: The second clamping member (22) includes a support (221) and a second base (222). The support (221) is mounted on the base plate (11). The second base (222) is detachably mounted on the support (221). A second pressure rod (223) is hinged to one end of the second base (222). A second pressure head (2231) for pressing or loosening the reinforcing rib (4) is provided at one end of the second pressure rod (223) with adjustable height. A second connecting rod (226) is hinged to the outside of the second base (222). The other end of the second connecting rod (226) is located above the second base (222) and is hinged to a second limiting seat (224). A second handle rod (225) is installed inside the second limiting seat (224). The second handle rod (225) is hinged to the other end of the second connecting rod (226). The end of the second handle rod (225) is hinged to the second base (222).

10. The welding positioning fixture according to claim 1, characterized in that: The first pressure head (1221) and the second pressure head (2231) are both fitted with pressure sleeves (1222) at the ends of the first pressure head (1221) and the second pressure head (2231) near the substrate (21).

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