A multi-face welding positioning jig for an electric meter

Abstract

The application discloses a multi-surface welding positioning jig for an electric meter, which comprises a platform positioning system for fixedly connecting an automatic welding device, a dynamic turnover module is reversibly connected above the platform positioning system, the rotating shaft of the dynamic turnover module is along the left-right direction, a multi-dimensional limiting mechanism for fixing a stacked intelligent electric meter circuit board is arranged on the dynamic turnover module, and the multi-dimensional limiting mechanism turns over along with the dynamic turnover module; the multi-dimensional limiting mechanism comprises a bottom plate, lateral limiting blocks are arranged on the two sides of the bottom plate, a detachable or reversible top cover is arranged above the lateral limiting blocks, and a top pressing block is arranged below the top cover. The multi-surface constraint position is designed, the precision requirement of product assembly position is met, manual holding positioning deviation is avoided, different surface plug-in welding points are welded in a single process through an adjustable rotating mechanism, the risk of part transfer between multiple processes is avoided, and the welding point protection and connection stability of the product are favorable.

Description

Technical Field

[0001] This utility model relates to a multi-faceted welding positioning fixture for electricity meters, belonging to the field of positioning fixture technology. Background Technology

[0002] In the field of welding stacked smart meter circuit boards, welding positioning fixtures are crucial components for ensuring orderly welding operations and maintaining product quality and processing efficiency. However, traditional smart meter circuit board welding fixtures have significant drawbacks. On the one hand, limited by their single-sided positioning structure design, they can only perform single-sided welding operations. To complete multi-sided welding, the circuit board must be disassembled and reassembled multiple times. This process not only significantly reduces welding efficiency but also easily leads to positional deviations during multiple disassembly and reassembly steps, with an average positioning error typically not less than 0.5 mm. On the other hand, traditional fixtures lack sufficient spatial constraint on stacked circuit boards. During welding operations, the stacked circuit boards are prone to interlayer relative displacement, making it impossible to stably guarantee the positional accuracy of the product assembly. This, in turn, adversely affects the stability of subsequent welding connections and the overall performance of the product. Utility Model Content

[0003] The purpose of this utility model is to provide a multi-sided welding positioning fixture for electricity meters, which can achieve three-sided welding in a single clamping, thus overcoming the limitations of traditional single-sided welding.

[0004] The technical solution adopted in this utility model is as follows: A multi-faceted welding positioning fixture for electricity meters includes a platform positioning system for fixed connection to an automatic welding equipment. A dynamic flipping module is rotatably connected above the platform positioning system. The rotating shaft of the dynamic flipping module is along the left-right direction. The dynamic flipping module is provided with a multi-dimensional limiting mechanism for fixing stacked smart meter circuit boards. The multi-dimensional limiting mechanism flips together with the dynamic flipping module. The multi-dimensional limiting mechanism includes a base plate, lateral limiting blocks on both sides of the base plate, a detachable or rotatable top cover above the lateral limiting blocks, and a top pressing block below the top cover.

[0005] Alternatively, the platform positioning system may include a bottom fixed carrier plate, which is provided with a matrix of positioning holes.

[0006] Optionally, the platform positioning system is provided with a pair of first ear plates, and the dynamic flipping module is provided with a pair of second ear plates. The first ear plates and the second ear plates are connected by a rotating shaft. The first ear plates are provided with a plurality of first docking holes arranged in a circumferential array, and the second ear plates are provided with a fixing member, which is detachably fixed to one of the first docking holes.

[0007] Alternatively, the second ear plate is provided with a second mating hole, through which the fastener passes a bolt and nut connecting the first and second mating holes; or, the fastener is a telescopic member that can move along the second mating hole, and the telescopic member can move into / out of the first mating hole.

[0008] Alternatively, the base plate may have placement slots on its left and right sides, the outline of which is adapted to the shape of the stacked smart meter circuit board.

[0009] Alternatively, when the top cover is flip-connected to the lateral limiting block, one end of the top cover is hinged to one of the lateral limiting holes, and the other end of the top cover is detachably connected to another lateral limiting block; or, the other end of the top cover is snapped into another lateral limiting block.

[0010] Alternatively, the top pressure block is connected to the top cover via a spring pressure block that floats up and down.

[0011] Alternatively, the lateral limiting blocks are located on the left and right sides, and the front and rear sides of the center of the top cover are provided with side pressing blocks.

[0012] Alternatively, the opposite side of the side pressure block is provided with an inclined surface.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: This utility model provides a multi-faceted welding positioning fixture for electricity meters. It features multi-faceted constraint positions to meet the precision requirements of product assembly, avoiding manual positioning deviations. An adjustable rotation mechanism enables single-process welding of plug-in weld points on different faces, avoiding the risks associated with transferring parts between multiple processes and improving weld point protection and connection stability. Batch operations can be performed by setting segmented welding parameters, solving the problems of high quality risks, poor welding stability, and low efficiency associated with manual welding of stacked electricity meters. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 .

[0015] Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 .

[0016] Figure 3 This is a schematic diagram of the present invention with the workpiece assembled.

[0017] Figure 4 This is a diagram showing the top cover flipping up.

[0018] The markings in the diagram are: 1-Platform positioning system, 11-Bottom fixed carrier plate, 12-Matrix positioning hole, 13-First ear plate, 131-First docking hole, 2-Dynamic flipping module, 21-Second ear plate, 22-Fixing component, 3-Multi-dimensional limiting mechanism, 31-Base plate, 311-Placement slot, 32-Side limiting block, 33-Top cover, 34-Top pressure block, 35-Spring pressure block, 36-Side pressure block. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings.

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. It should be noted that, except for dependent embodiments, any embodiment exists independently, and its implementation or non-implementation does not affect the integrity of the remaining embodiments, nor does the implementation or non-implementation of dependent embodiments affect the integrity of the original embodiments.

[0021] A multi-faceted welding positioning fixture for electricity meters, such as Figures 1-4 As shown, the system includes a platform positioning system 1 for fixing and connecting an automatic welding equipment. A dynamic flipping module 2 is rotatably connected above the platform positioning system 1. The rotating shaft of the dynamic flipping module 2 is along the left-right direction. The dynamic flipping module 2 is provided with a multi-dimensional limiting mechanism 3 for fixing a stacked smart meter circuit board. The multi-dimensional limiting mechanism 3 flips together with the dynamic flipping module 2. The multi-dimensional limiting mechanism 3 includes a base plate 31. Lateral limiting blocks 32 are provided on both sides of the base plate 31. A detachable or rotatable top cover 33 is provided above the lateral limiting blocks 32. A top pressing block 34 is provided below the top cover 33.

[0022] The platform positioning system 1, fixedly connected to the automatic welding equipment, provides a stable mounting base for the fixture, preventing overall displacement of the fixture during welding and ensuring the stability of positioning and welding operations. The dynamic flipping module 2, with its left-right rotation axis, is flip-connected to the platform positioning system 1. Its core function is to drive the multi-dimensional limiting mechanism 3 and the fixed stacked smart meter circuit board to flip back and forth, allowing the welding torch to easily contact the welding areas on both sides of the circuit board. In the multi-dimensional limiting mechanism 3, the base plate 31 supports the circuit board, while the lateral limiting blocks 32 on both sides restrict the left-right displacement of the circuit board. The top cover 33, with its detachable or flip-up connection, facilitates the clamping and removal of the circuit board. The top pressure block 34 below the top cover 33 applies pressure from above to prevent the circuit board from loosening or shifting during flipping and welding. By combining the forward and backward flipping function of the dynamic flipping module 2 with the multi-dimensional limiting mechanism 3, the limitation of traditional fixtures that can only weld on one side is overcome, eliminating multiple disassembly and assembly steps, which not only improves welding efficiency but also avoids positioning deviations caused by multiple disassembly and assembly. At the same time, the multi-directional constraint of the multi-dimensional limiting mechanism 3 effectively solves the problem of interlayer displacement of stacked circuit boards, ensuring product assembly accuracy.

[0023] In another specific embodiment, the platform positioning system 1 includes a bottom fixed carrier plate 11, which has matrix-type positioning holes 12. The bottom fixed carrier plate 11 serves as the basic load-bearing structure of the platform positioning system 1, providing a stable installation reference for the entire fixture. The matrix-type positioning holes 12, through different combinations of hole positions, can flexibly adapt to the mounting hole positions of different models of automatic welding machine platforms, allowing the fixture to be adjusted and fixed according to the actual equipment specifications, thus expanding the fixture's applicability. The bottom fixed carrier plate 11 is detachably fixed to the automatic welding machine platform by bolts, ensuring the stability of the connection between the bottom fixed carrier plate 11 and the welding machine platform while allowing for quick separation when needed, facilitating individual maintenance and repair of the fixture or its transfer between different welding equipment.

[0024] In another specific implementation, the platform positioning system 1 is provided with a pair of first ear plates 13, and the dynamic flipping module 2 is provided with a pair of second ear plates 21. The first ear plates 13 and the second ear plates 21 are connected by a rotating shaft. The first ear plates 13 are provided with a plurality of first docking holes 131 arranged in a circumferential array, and the second ear plates 21 are provided with a fixing member 22, which is detachably fixed to one of the first docking holes 131. The first ear plates 13 of the platform positioning system 1 and the second ear plates 21 of the dynamic flipping module 2 are connected by a rotating shaft to form a stable flipping support structure, ensuring the coaxiality and smoothness of the dynamic flipping module 2 when rotating around the left and right rotating shaft, avoiding jamming or offset during the flipping process, and providing a structural basis for the overall flipping action. The plurality of first docking holes 131 in the circumferential array of the first ear plates 13 correspond to different flipping angles. The fixing member 22 on the second ear plate 21 is detachably fixed to the selected first docking hole 131, which can accurately lock the dynamic flipping module 2 at a preset angle, preventing angle changes due to external forces during welding operations and ensuring the accuracy of the welding position.

[0025] In another specific embodiment, the second ear plate 21 is provided with a second mating hole, and the fixing member 22 passes through the bolt and nut connecting the first mating hole 131 and the second mating hole; or, the fixing member 22 is a telescopic member that can move along the second mating hole, and the telescopic member can move into / out of the first mating hole 131. When the fixing member 22 is a bolt and nut passing through the first mating hole 131 and the second mating hole, the rigid connection of the bolt can form a high-strength lock, effectively resisting the vibration or external force that may be generated during the welding process, ensuring that the dynamic flipping module 2 is completely fixed at the set angle, avoiding the deviation of the weld point position due to the angle shift during welding. At the same time, the detachable characteristics of the bolt and nut allow the module to be rotated simply by loosening the nut when adjusting the flipping angle. The operation is stable and the maintenance is convenient, making it suitable for welding scenarios with high requirements for angle locking strength. When the fixing member 22 is a telescopic member that can move along the second docking hole, it is not necessary to remove the bolt when adjusting the angle. Simply rotate or pull out the telescopic member to make it exit the first docking hole 131, and the dynamic flipping module 2 can be easily rotated. After being rotated to the target angle, the telescopic member can automatically or manually reset into the corresponding first docking hole 131 to quickly complete the locking. The telescopic member can be a bolt screwed into the second docking hole or a press-type elastic self-locking mechanism provided on the second ear plate 21 that can pass through the second docking hole. The structures are all existing technologies and there are many types. Therefore, this solution will not describe their specific structures.

[0026] In another specific implementation, the base plate 31 is provided with placement slots 311 on both the left and right sides, and the outline of the placement slots 311 is adapted to the shape of the stacked smart meter circuit board. The placement slots 311 on the left and right sides of the base plate 31, by virtue of their conforming outlines to the shape of the stacked smart meter circuit board, can guide the circuit boards on both sides to be precisely embedded into the slots, limiting the horizontal displacement of the circuit boards on the base plate 31 from the initial clamping stage, avoiding left-right misalignment or front-back offset, and providing a precise initial positioning basis for the subsequent further fixing of the lateral limiting block 32 and the top pressure block 34. The placement slots 311 on the left and right sides can simultaneously provide independent bearing and initial positioning space for the two stacked smart meter circuit boards on both sides, and can also make the overall force on the base plate 31 more balanced, avoiding slight deformation of the base plate 31 due to weight concentration during clamping on one side, or shaking caused by the shift of the center of gravity during the flipping process of the dynamic flipping module 2.

[0027] In another specific implementation, when the top cover 33 is rotatably connected to the lateral limiting block 32, one end of the top cover 33 is hinged to one of the lateral limiting holes, and the other end of the top cover 33 is detachably connected to the other lateral limiting block 32; or, the other end of the top cover 33 is snapped into the other lateral limiting block 32. When the top cover 33 is rotatably connected to the lateral limiting block 32, the hinged connection of one end to one of the lateral limiting blocks 32 provides a stable rotation fulcrum for the top cover 33, allowing the top cover 33 to rotate smoothly along a fixed trajectory, avoiding positional displacement or structural interference during opening and closing, while ensuring that the top cover 33 always remains connected to the fixture body, preventing component loss. The detachable connection of the other end to the other lateral limiting block 32 allows for tight fixing of the top cover 33 to the limiting block through rigid structures such as bolts, providing continuous and stable pressure to the top pressure block 34 during welding operations, preventing the top cover 33 from loosening due to vibration or rotation, and is particularly suitable for scenarios requiring high fixing strength.

[0028] In another specific implementation, the top pressure block 34 is connected to the top cover 33 via a spring pressure block 35 that floats up and down. Utilizing the elastic deformation characteristics of the spring, the pressure block can adaptively adjust its pressure when contacting the stacked smart meter circuit board. When there are slight thickness differences or uneven surfaces on the circuit board, the spring pressure block 35 can compensate for these differences through expansion and contraction, ensuring that the pressure block maintains uniform contact with the circuit board surface at all times. This avoids excessive local pressure that could damage the circuit board, or insufficient pressure that could cause loosening.

[0029] In another specific implementation, the lateral limiting blocks 32 are located on the left and right sides, and the top cover 33 has side pressure blocks 36 located on the front and rear sides of the center. The lateral limiting blocks 32 on the left and right sides provide stable constraints on the stacked smart meter circuit board from the left and right directions, limiting its displacement in the horizontal direction and ensuring accurate left and right positioning of the circuit board. The side pressure blocks 36 located on the front and rear sides of the center of the top cover 33 apply pressure to the circuit board from the front and rear directions, specifically constraining its movement in the front and rear directions. Especially when the dynamic flipping module 2 flips the circuit board, it can resist the forward and backward sliding tendency caused by gravity or inertia. Compared with single-direction limiting, this more comprehensively locks the position of the circuit board on the horizontal plane, avoiding soldering misalignment caused by relative horizontal displacement between stacked circuit board layers. The side pressure blocks 36 in the center can focus on the core area of ​​the circuit board, enhancing the positioning stability of key soldering parts, and move synchronously with the top cover 33 without affecting the clamping operation of the circuit board.

[0030] As another specific implementation, the side pressure block 36 has an inclined surface on the opposite side. When the top cover 33 closes and moves the side pressure block 36 closer to the circuit board, the inclined surface can guide the circuit board to accurately enter the front-back direction limiting area, avoiding direct rigid collision between the side pressure block 36 and the edge of the circuit board, and reducing jamming caused by alignment deviation during clamping.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. The present utility model extends to any new features or combinations disclosed in this specification, and any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model. It is obvious to those skilled in the art that the present utility model is not limited to the details of the above exemplary embodiments, and that detailed technical features not disclosed in this embodiment, such as specific structures, are all prior art, which can be obtained by those skilled in the art from the prior art. The present disclosure does not specifically limit these aspects.

[0032] In the description of the embodiments of this utility model, it should be understood that 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 indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0033] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0034] In this embodiment of the invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature include the first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature.

[0035] In the description of the embodiments of this utility model, it should be understood that the terms "left", "right", "up", "down", "front", "back", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of 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. Therefore, they should not be construed as limitations on the embodiments of this utility model.

Claims

1. A multi-faceted welding positioning fixture for electricity meters, characterized in that: The system includes a platform positioning system (1) for fixing and connecting an automatic welding equipment. A dynamic flipping module (2) is rotatably connected above the platform positioning system (1). The rotating shaft of the dynamic flipping module (2) is along the left and right direction. A multi-dimensional limiting mechanism (3) for fixing stacked smart meter circuit boards is provided on the dynamic flipping module (2). The multi-dimensional limiting mechanism (3) flips together with the dynamic flipping module (2). The multi-dimensional limiting mechanism (3) includes a base plate (31). Lateral limiting blocks (32) are provided on both sides of the base plate (31). A detachable or rotatable top cover (33) is provided above the lateral limiting blocks (32). A top pressure block (34) is provided below the top cover (33).

2. The multi-faceted welding positioning fixture as described in claim 1, characterized in that: The platform positioning system (1) includes a bottom fixed carrier plate (11), and the bottom fixed carrier plate (11) is provided with matrix positioning holes (12).

3. The multi-faceted welding positioning fixture as described in claim 1, characterized in that: The platform positioning system (1) is provided with a pair of first ear plates (13), and the dynamic flipping module (2) is provided with a pair of second ear plates (21). The first ear plates (13) and the second ear plates (21) are connected by a rotating shaft. The first ear plates (13) are provided with a plurality of first docking holes (131) arranged in a circumferential array. The second ear plates (21) are provided with a fixing member (22). The fixing member (22) is detachably fixed to one of the first docking holes (131).

4. The multi-faceted welding positioning fixture as described in claim 3, characterized in that: The second ear plate (21) is provided with a second mating hole, and the fixing member (22) passes through the bolt and nut connecting the first mating hole (131) and the second mating hole; or, the fixing member (22) is a telescopic member that can move along the second mating hole, and the telescopic member can move into / out of the first mating hole (131).

5. The multi-faceted welding positioning fixture as described in claim 1, characterized in that: The base plate (31) is provided with placement slots (311) on the left and right sides respectively, and the outline of the placement slots (311) is adapted to the shape of the stacked smart meter circuit board.

6. The multi-faceted welding positioning fixture as described in claim 1, characterized in that: When the top cover (33) is flip-connected to the lateral limiting block (32), one end of the top cover (33) is hinged to one of the lateral limiting holes, and the other end of the top cover (33) is detachably connected to another lateral limiting block (32); or, the other end of the top cover (33) is snapped into another lateral limiting block (32).

7. The multi-faceted welding positioning fixture as described in claim 1, characterized in that: The top pressure block (34) is connected to the top cover (33) via a spring pressure block (35) that floats up and down.

8. The multi-faceted welding positioning fixture as described in claim 1, characterized in that: The lateral limiting block (32) is provided on the left and right sides, and the top cover (33) is provided with a side pressing block (36) on the front and rear sides of the middle part.

9. The multi-faceted welding positioning fixture as described in claim 8, characterized in that: The side pressure block (36) has an inclined surface on the opposite side.

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