A metal splicing device

Abstract

This utility model relates to a metal splicing device, including a disassembly block, a connecting block, a fixed base, a grooved wheel, a cylinder, and a connecting rod. The top of the disassembly block has a contoured clearance groove; its bottom end is detachably fixedly connected to the top of the connecting block, and a guide protrusion is provided on the bottom side of the connecting block. The fixed base is detachably fixedly connected to the connecting block, and the fixed base has a guide groove. The guide protrusion passes through the vertical guide groove and can slide vertically. The grooved wheel has a curved through-slot and is slidably connected to the side of the fixed base. The guide protrusion also passes through the curved through-slot and forms a slidable connection with it. The cylinder drives the grooved wheel to slide horizontally, and the inclined trajectory of the curved through-slot causes the guide protrusion to drive the connecting block to rise and fall along the vertical guide groove, thereby realizing the switching of the disassembly block between a support position flush with the welding flow channel plane and a clearance position lower than the welding flow channel plane. This utility model has the effect of quickly adapting to different cut shapes and eliminating material strip jamming.

Description

Technical Field

[0001] This utility model relates to the field of metal processing equipment technology, and in particular to a metal splicing device. Background Technology

[0002] In modern industrial manufacturing, the efficient splicing of metal strips is a core step in the production process of automotive parts, precision electronic devices, and aerospace structural components. Its precision and stability directly affect the mechanical properties, electrical and thermal conductivity, and overall reliability of the products. With the increasing demand for flexible manufacturing characterized by "multiple varieties, small batches, and high precision," metal splicing equipment needs to achieve technological breakthroughs in areas such as rapid switching between different specifications of metal strips and stable operation under complex working conditions.

[0003] The core of metal strip welding lies in achieving joint bonding through high-temperature melting, while ensuring the structural strength and functional stability of the joint. Contouring and clearance design is crucial to prevent the molten strip from adhering to the workpiece (i.e., using specially shaped clearance grooves to suspend the cut and prevent bonding failure), while the smoothness of strip transport directly affects welding accuracy and production efficiency.

[0004] The existing technical solutions described above have the following drawbacks: although they achieve incision adhesion to avoid sticking, they also have the following drawbacks:

[0005] Firstly, the adaptability of the cut is insufficient. Because the contoured relief groove needs to be strictly matched with the material strip cut, when changing products or adjusting the cut design, the splicing position of the welding equipment must be completely modified (such as re-processing the relief groove and replacing the matching parts). This process is not only time-consuming and labor-intensive (a single changeover can take several hours to several days), and the cost of manufacturing new parts is high, but also prone to welding accuracy deviations during debugging, making it difficult to meet the high-efficiency changeover requirements of multi-variety co-production.

[0006] Secondly, there is the risk of strip jamming. Flexible strips such as thin steel strips and alloy strips often exhibit excessive bending at the ends due to material characteristics or transport deformation. When passing through the welding position, the bent ends are prone to falling into the contoured relief groove due to gravity. Since the depth and shape of existing relief grooves are fixed and lack buffer adjustment space, the strip makes rigid contact with the groove wall and gets stuck. This not only causes equipment downtime (failure rate can reach over 15%), but may also cause quality defects such as strip tearing and weld point misalignment, seriously affecting the continuous and stable operation of automated production lines. Utility Model Content

[0007] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a metal splicing device that can quickly adapt to different cut shapes and eliminate material strip jamming.

[0008] The above-mentioned utility model objective is achieved through the following technical solution:

[0009] A metal splicing device includes a disassembly block, a connecting block, a fixing seat, a grooved wheel, a cylinder, and a connecting rod;

[0010] The top of the disassembly block is provided with a contour-following clearance groove;

[0011] The bottom end of the disassembly block is detachably and fixedly connected to the top end of the connecting block, and a guide protrusion is provided on the bottom side of the connecting block;

[0012] The fixed base and the connecting block are detachably fixedly connected. The fixed base has a guide groove that extends vertically and penetrates its front and rear surfaces. The guide protrusion penetrates the vertical guide groove and can slide vertically.

[0013] The grooved wheel is slidably connected to the side of the fixed base. The grooved wheel has a curved through groove that runs along an inclined curve and penetrates its front and rear surfaces. The guide protrusion is slidably connected to and passes through the curved through groove.

[0014] When the cylinder drives the grooved wheel to slide horizontally along the fixed seat via the connecting rod, the inclined trajectory of the curved through groove causes the guide protrusion to drive the connecting block to rise and fall along the vertical guide groove, thereby realizing the switching of the disassembly block between the support position flush with the welding flow channel plane and the avoidance position lower than the welding flow channel plane.

[0015] Through the above technical solution, the cylinder drives the horizontal sliding of the groove wheel, and the inclined trajectory of the curved through groove converts the horizontal movement into vertical movement, realizing the precise switching of the disassembly block between the support position and the avoidance position. This effectively solves the problem of material jamming caused by the limited shape of the cut and the sudden bending of the strip end. It reduces the workload and change cost of making new workpieces, improves the efficiency and quality of metal splicing, and enables the equipment to adapt to products with different cut shapes, thus enhancing the versatility and flexibility of the equipment.

[0016] As a further technical solution of this utility model: a through hole adapted to the disassembly block is provided on the welding flow channel, and the inner wall of the through hole is clearance-fitted with the outer contour of the disassembly block.

[0017] Through the above technical solution, the disassembly block and the through hole on the welding channel fit closely together, ensuring that the disassembly block can stably support the strip when in the support position, and allow the strip to pass smoothly when in the avoidance position, avoiding jamming, ensuring the smooth flow of the welding channel and the continuity of the metal splicing process, and improving production efficiency and product quality stability.

[0018] As a further technical solution of this utility model: the shape of the contouring relief groove of the disassembly block is adapted to the shape of the material strip cut, and the depth of the contouring relief groove is greater than the thickness of the material strip cut.

[0019] Through the above technical solution, the contouring relief groove is adapted to the shape of the strip cut, and the corresponding contouring disassembly block can be flexibly replaced for different strip cut shapes. This completely solves the problem of changing and modifying the shape caused by the uniform and fixed cut shape in the existing technology, and significantly reduces the production volume and debugging cost of new workpieces. Since the depth of the contouring relief groove is greater than the thickness of the strip cut, a suspended relief space is formed at the welding position. This not only uses gravity to achieve natural positioning of the strip end, but also avoids the strip getting stuck due to excessive bending and contact with the groove. This ensures that the strip passes through unobstructed and is accurately pushed into the return channel, improving the equipment's compatibility with multiple strip specifications and the stability of welding splicing.

[0020] As a further technical solution of this utility model: the end of the curved through groove near the cylinder is higher than the other end of the curved through groove.

[0021] Through the above technical solution, the inclined trajectory of the curved through-slot realizes the conversion from horizontal to vertical movement, optimizes the power transmission efficiency, and transforms the horizontal linear movement of the cylinder-driven groove wheel into the vertical lifting and lowering movement of the guide protrusion, realizing the precise position switching of the disassembly block; the inclined direction (higher near the cylinder end) ensures that when the groove wheel slides away from the cylinder, the disassembly block descends to the avoidance position; when it slides closer to the cylinder, the disassembly block rises to the welding flow channel plane, and the motion logic is consistent with the operation requirements.

[0022] As a further technical solution of this utility model: a horizontal through groove adapted to the grooved wheel is provided on the fixed base, and the grooved wheel is slidably embedded in the horizontal through groove and moves only in the horizontal direction.

[0023] Through the above technical solutions, the horizontal through groove provides a stable and reliable sliding track for the grooved wheel, ensuring that the grooved wheel slides only along the set horizontal trajectory and avoiding motion errors caused by shaking; the through groove structure adapted to the grooved wheel, such as the groove width matching the thickness of the grooved wheel, reduces the gap, improves the motion accuracy, and ensures the stability of the fit between the curved through groove and the guide protrusion.

[0024] As a further technical solution of this utility model: one end of the connecting rod is fixedly connected to the grooved wheel, and the other end is fixedly connected to the piston rod of the cylinder.

[0025] Through the above technical solution, the connecting rod transmits the linear power of the cylinder to the grooved wheel, which solves the problem that the cylinder and the grooved wheel cannot be directly connected due to their non-collinear spatial positions (such as the cylinder being installed horizontally and the grooved wheel being located on the side of the fixed seat); the rigid connecting rod ensures that the power transmission is lossless and avoids motion delay or error caused by elastic deformation.

[0026] In summary, this utility model has at least one of the following beneficial technical effects:

[0027] 1. This utility model discloses a metal splicing device, which uses a cylinder to drive a grooved wheel to slide horizontally. By utilizing the inclined trajectory of the curved through groove and the cooperation of the vertical guide groove, the guide protrusion drives the disassembly block to move up and down precisely in the vertical direction. This achieves automatic switching between the disassembly block in the welding flow channel plane (flat and supporting the material strip) and the avoidance position (sinking down to avoid the material strip), eliminating the problem of material strip jamming caused by collision with the disassembly block. It ensures that the material strip bends smoothly under the action of gravity and passes through the contour avoidance groove, and is then pushed back to the flow channel by the disassembly block, improving the continuity and reliability of the metal splicing process.

[0028] 2. This utility model discloses a metal splicing device, which has a detachable connection structure of disassembly block, connecting block and fixed seat. When the material cut shape changes, only the small component of disassembly block needs to be replaced. There is no need to disassemble or replace the whole equipment. This significantly reduces the production volume of new workpieces and the cost of equipment change, reduces the difficulty of debugging, and adapts to the rapid changeover needs of multi-variety, small-batch metal splicing.

[0029] 3. This utility model discloses a metal splicing device, which adapts the shape of the material strip cutout to the top contour relief groove of the disassembly block, and combines the gap fit between the welding flow channel through hole and the outer contour of the disassembly block. When the material strip passes through, it first bends and sinks along the contour of the contour relief groove. After the disassembly block is pushed up to the flow channel plane, the material strip can be sent back to the flow channel without obstruction, avoiding deformation or breakage of the material strip due to rigid collision or jamming. At the same time, it ensures the positioning accuracy of the splicing part and improves the quality of the finished product. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the metal splicing device according to Embodiment 1 of this utility model.

[0031] Figure 2 This is a front view of the metal splicing device according to Embodiment 1 of this utility model.

[0032] Figure 3 This is a three-dimensional structural diagram of the disassembly block in the metal splicing device of Embodiment 1 of this utility model.

[0033] Figure 4 This is a three-dimensional structural diagram of the connecting block in the metal splicing device according to Embodiment 1 of this utility model.

[0034] Figure 5 This is a front view of the connecting block in the metal splicing device according to Embodiment 1 of this utility model.

[0035] Figure 6 This is a three-dimensional structural diagram of the fixing base in the metal splicing equipment of Embodiment 1 of this utility model.

[0036] Figure 7 This is a front view of the fixing base in the metal splicing device according to Embodiment 1 of this utility model.

[0037] Figure 8 This is a three-dimensional structural diagram of the grooved wheel in the metal splicing equipment of Embodiment 1 of this utility model.

[0038] Reference numerals: 1. Disassembly block; 11. Contour clearance groove; 2. Connecting block; 21. Guide protrusion; 3. Fixing seat; 31. Vertical guide groove; 32. Horizontal through groove; 4. Grooved wheel; 41. Curved through groove; 5. Cylinder; 6. Connecting rod. Detailed Implementation

[0039] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0040] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0042] Example 1:

[0043] Reference Figure 1 This utility model discloses a metal splicing device, which includes a disassembly block 1, a connecting block 2, a fixing seat 3, a grooved wheel 4, a cylinder 5, and a connecting rod 6.

[0044] The top of the disassembly block 1 is provided with a contoured relief groove 11, and the bottom end is detachably fixed to the top of the connecting block 2 by bolts, which makes it easy to replace the disassembly block 1 with different contours to adapt to different material strip cutting shapes. The disassembly block 1 can be made of hard alloy material with excellent wear resistance and high temperature resistance to cope with the high temperature environment and frequent friction during the welding process.

[0045] A guide protrusion 21 is provided on the bottom side of the connecting block 2 to transmit vertical movement. The fixed seat 3 is detachably fixed to the connecting block 2 by a positioning pin and bolts. It has a vertical guide groove 31 extending vertically and penetrating the front and rear surfaces. The guide protrusion 21 passes through the vertical guide groove 31 and can slide vertically, restricting the movement of the guide protrusion 21 to only the vertical direction. The connecting block 2 and the fixed seat 3 can be made of high-strength aluminum alloy, which ensures strength and reduces the weight of the equipment; the grooved wheel 4 is made of high-precision bearing steel and is quenched to improve its wear resistance and fatigue resistance.

[0046] The grooved wheel 4 is slidably connected to the side of the fixed base 3, and has a curved through groove 41 that runs along an inclined curve and penetrates the front and rear surfaces. The guide protrusion 21 passes through the curved through groove 41 and forms a sliding connection with its groove wall.

[0047] When the cylinder 5 drives the grooved wheel 4 to slide horizontally along the fixed seat 3 via the connecting rod 6, the inclined trajectory of the curved through groove (41) causes the guide protrusion 21 to drive the connecting block 2 to rise and fall along the vertical guide groove 31, thereby realizing the switching of the disassembly block 1 between the support position flush with the welding flow channel plane and the avoidance position lower than the welding flow channel plane.

[0048] Furthermore, the welding channel has through holes that match the shape of the disassembly block 1. The inner wall of the through hole is fitted with the outer contour of the disassembly block 1 with a clearance (0.2-0.5mm on one side), ensuring that the disassembly block 1 can be accurately embedded into the welding channel and flush with the channel plane, providing a stable support reference for metal splicing. In addition, the inner wall of the through hole can be surface hardened, such as carburizing, nitriding, or hard chrome plating, to improve its hardness and wear resistance and extend its service life. At the same time, a sealing device, such as a sealing ring or sealant, can be installed at the mating point between the inner wall of the through hole and the disassembly block 1 to prevent metal debris and impurities generated during welding from entering the through hole and affecting the normal sliding of the disassembly block 1.

[0049] The shape of the contoured relief groove 11 of the disassembly block 1 is adapted to the shape of the material strip cut. For example, the gap between the side wall of the contoured relief groove 11 and the side wall of the material strip cut is ≤0.2mm to ensure a good fit. The depth is also greater than the thickness of the material strip cut; the depth of the contoured relief groove 11 is the material strip cut thickness + 1-2mm. For example, if the material strip cut is 3mm thick, the relief groove depth is 4-5mm, achieving both suspension and relief to prevent adhesion, and avoiding material strip bending and jamming. Furthermore, an anti-stick coating, such as a polytetrafluoroethylene coating, can be applied inside the contoured relief groove 11 of the disassembly block 1 to prevent the material strip cut from adhering to the disassembly block 1.

[0050] The curved groove 41 has one end higher than the other near the cylinder 5, with an inclination angle (angle with the horizontal) of 30°-60°. Designed according to the stroke of cylinder 5 and the lifting height of disassembly block 1, for example, if the cylinder 5 stroke is 100mm and disassembly block 1 needs to be lifted 50mm, the angle is approximately 26.6° (30° is used in engineering practice). The height difference between the two ends of the curved groove 41 is 50mm, strictly consistent with the 50mm height difference of the vertical guide groove 31, ensuring a stable transition from horizontal to vertical movement. Buffer devices, such as rubber buffer blocks or hydraulic buffers, can be installed at both ends of the curved groove 41 to reduce the impact and vibration of the grooved wheel 4 during sliding, improving the operational stability of the equipment.

[0051] The fixed base 3 has a horizontal through groove 32 that is adapted to the grooved wheel 4. The grooved wheel 4 is slidably embedded in the horizontal through groove 32 and can only move in the horizontal direction, ensuring the movement accuracy of the grooved wheel 4.

[0052] The width of the horizontal through groove 32 is the thickness of the grooved wheel 4 + 0.1~0.3mm, with a clearance fit, which ensures smooth sliding and limits vertical wobble to ≤0.2mm. Furthermore, to reduce sliding friction, the side walls of the horizontal through groove 32 are coated with a wear-resistant coating, such as polytetrafluoroethylene, extending its service life. To further improve the straightness and accuracy of horizontal movement, the bottom surface of the horizontal through groove 32 can also be equipped with a guide rail, such as a linear guide rail, and the bottom of the grooved wheel 4 has a slider adapted to the guide rail.

[0053] One end of the connecting rod 6 is fixedly connected to the grooved wheel 4, and the other end is fixedly connected to the piston rod of the connecting cylinder 5. As a key component connecting the cylinder 5 and the grooved wheel 4, the connecting rod 6 can be made of high-strength alloy steel and surface-treated with quenching and tempering, with chrome plating or blackening to improve corrosion resistance. The connecting rod 6 is connected to the grooved wheel 4 and the piston rod of the cylinder 5 by high-strength bolts, equipped with anti-loosening devices such as anti-loosening nuts and cotter pins to prevent bolt loosening due to equipment vibration; simultaneously, sealing gaskets or O-rings can be installed at the connection points to prevent gas leakage and ensure stable working pressure of the cylinder 5.

[0054] The connecting rod 6 and the piston rod are connected by a threaded connection, specifically the external thread of the piston rod and the internal thread of the connecting rod 6. The length can be flexibly adjusted by the engagement depth. The initial length of the connecting rod 6 is the horizontal distance between the cylinder 5 and the grooved wheel 4 plus 5 to 10 mm, leaving an adjustment margin to compensate for assembly errors, adapt to changes in working conditions and wear of parts, and ensure stable operation of the equipment.

[0055] The working process of the metal splicing device of this utility model is as follows:

[0056] Material strip entry stage: Cylinder 5 retracts, driving the grooved wheel 4 to slide horizontally away from cylinder 5 via connecting rod 6. At this time, the inclined trajectory of the curved through groove 41 causes the guide protrusion 21 to descend along the vertical guide groove 31, driving the connecting block 2 and disassembly block 1 to descend below the welding flow channel plane for avoidance. The new material strip enters the welding area, bending downwards due to gravity, and the cut falls into the contour avoidance groove 11 of the disassembly block 1. Since the groove depth is greater than the material strip cut thickness, the material strip cut is suspended and does not contact the bottom of the groove, passing smoothly. Material strip pushing stage: After the material strip passes through the contour avoidance groove 11, cylinder 5 pushes out, driving the grooved wheel 4 to slide horizontally towards cylinder 5. The curved through groove 41 forces the guide protrusion 21 to rise, driving the disassembly block 1 to rise to be flush with the welding flow channel plane, forming a support position, and smoothly pushing the material strip back into the flow channel to complete the splicing.

[0057] The implementation principle of this utility model is as follows: the key components of the welding flow channel are disassembled into detachable disassembly blocks 1. When faced with different material strip cutting shapes, only the corresponding contour disassembly block 1 needs to be replaced, without the need for large-scale modification of the entire welding structure. This breaks through the dependence of traditional welding equipment on a single cutting shape, enabling the equipment to quickly adapt to various material strips of different specifications, shortening the changeover time, significantly improving the flexibility of the production line, and powerfully promoting the realization of small-batch, multi-variety metal processing production mode. The clever combination of curved through groove 41 and vertical guide groove 31, through the horizontal drive of cylinder 5, precisely controls the switching of disassembly block 1 between the avoidance position and the support position. The contour-following groove 11, with a depth greater than the thickness of the strip cut, combined with the shape-adaptive guiding function, completely solves the problem of strip jamming caused by excessive bending. At the same time, the detachable and fixed connection design between the connecting block 2 and the fixed seat 3 ensures smooth lifting and precise positioning of the disassembly block 1. Combined with the high-strength alloy steel connecting rod 6, it further improves the reliability of equipment operation, provides a solid guarantee for the quality of metal splicing, and achieves a dual improvement in flexible production and reliability. It has significant industrial application value and broad market promotion prospects.

[0058] By utilizing an inclined curved groove to convert the horizontal thrust of cylinder 5 into a vertical lifting force, and combining it with high-precision guiding components and intelligent sensor control, the problem of material jamming is completely solved while ensuring accurate positioning of the material belt. Its core innovation lies in combining a complex motion conversion mechanism with a detachable modular design, breaking through the limitations of the rigid structure of traditional equipment.

[0059] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A metal splicing device, characterized in that, It includes a disassembly block (1), a connecting block (2), a fixing seat (3), a grooved wheel (4), a cylinder (5), and a connecting rod (6). The top of the disassembly block (1) is provided with a contoured clearance groove (11); The bottom end of the disassembly block (1) is detachably and fixedly connected to the top end of the connecting block (2); The bottom side of the connecting block (2) is provided with a guide protrusion (21); The fixed seat (3) is detachably fixedly connected to the connecting block (2). The fixed seat (3) has a vertical guide groove (31) that extends vertically and penetrates its front and rear surfaces. The guide protrusion (21) penetrates the vertical guide groove (31) and can slide vertically. The grooved wheel (4) is slidably connected to the side of the fixed base (3). The grooved wheel (4) has a curved through groove (41) that runs along an inclined curve and penetrates its front and rear surfaces. The guide protrusion (21) is slidably connected to and penetrates the curved through groove (41). When the cylinder (5) drives the grooved wheel (4) to slide horizontally along the fixed seat (3) via the connecting rod (6), the inclined trajectory of the curved through groove (41) causes the guide protrusion (21) to drive the connecting block (2) to rise and fall along the vertical guide groove (31), thereby realizing the switching of the disassembly block (1) between the support position flush with the welding flow channel plane and the avoidance position below the welding flow channel plane.

2. The metal splicing equipment according to claim 1, characterized in that, A through hole adapted to the shape of the disassembly block (1) is provided on the welding channel, and the inner wall of the through hole is clearance-fitted with the outer contour of the disassembly block (1).

3. The metal splicing equipment according to claim 1, characterized in that, The shape of the contoured relief groove (11) is adapted to the shape of the material strip cut, and the depth of the contoured relief groove (11) is greater than the thickness of the material strip cut.

4. The metal splicing equipment according to claim 1, characterized in that, The curved through groove (41) is higher at one end near the cylinder (5) than at the other end.

5. A metal splicing device according to claim 1, characterized in that, The fixed base (3) has a horizontal through groove (32) adapted to the grooved wheel (4). The grooved wheel (4) is slidably embedded in the horizontal through groove (32) and can only move in the horizontal direction.

6. A metal splicing device according to claim 1, characterized in that, One end of the connecting rod (6) is fixedly connected to the grooved wheel (4), and the other end is fixedly connected to the piston rod of the cylinder (5).

Images