Automatic riveting machine centering device applied to continuous production of strip steel color coating
By designing an automatic riveting machine centering device, the automatic centering of the strip steel is achieved by using a cylinder to drive a rack and side pusher, which solves the problem of unstable accuracy of manual centering and improves the riveting quality and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING XINGHE ZHONGLIAN TECH CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-01
AI Technical Summary
The current strip riveting process relies on manual centering, which leads to unstable centering accuracy and affects riveting quality and efficiency.
An automatic riveting machine centering device is adopted, which uses a cylinder to drive a rack and a side pusher to achieve automatic centering of the strip steel, and a positioning mechanism to ensure that the strip steel fits on the riveting seat to avoid deformation.
It improves the accuracy and efficiency of strip riveting, ensures riveting quality, and reduces the tediousness and time consumption of manual operation.
Smart Images
Figure CN224181895U_ABST
Abstract
Description
A centering device for an automatic riveting machine used in the continuous production of color coating on steel strips. Technical Field
[0001] This utility model belongs to the field of strip steel color coating technology, and more specifically, it relates to an automatic riveting machine centering device used in the continuous production of strip steel color coating. Background Technology
[0002] Color-coated steel sheets or strips are products made by using cold-rolled steel sheets and galvanized steel sheets as substrates, applying coatings continuously after surface pretreatment, and then baking and cooling. Coated steel strips are lightweight, aesthetically pleasing, and have good corrosion resistance. They can also be directly processed, providing a new type of raw material for the construction, shipbuilding, vehicle manufacturing, furniture, and electrical industries. They achieve good results such as replacing wood with steel, efficient construction, energy saving, and pollution prevention.
[0003] In existing strip steel color coating production lines, two strip steels need to be riveted together. When riveting strip steels, the head of one strip steel is usually riveted to the tail of another strip steel. During the riveting process, the two strip steels need to be aligned so that their centers are aligned to ensure the quality of the subsequent riveting. Therefore, the alignment work in steel strip riveting is very important.
[0004] Currently, the alignment work for steel strip riveting usually relies on manual alignment. First, manual alignment depends on the operator's experience and skills, making it difficult to guarantee the accuracy of each alignment, resulting in unstable alignment precision and easy alignment deviations. This directly affects the riveting quality and the quality stability of subsequent products. Second, manual alignment is time-consuming and labor-intensive, and the operation is cumbersome and inefficient, thus reducing the efficiency of steel strip riveting. Summary of the Invention
[0005] The alignment of steel strip riveting is usually done manually. First, manual alignment depends on the operator's experience and skills, making it difficult to guarantee the accuracy of each alignment, resulting in unstable alignment precision and easy alignment deviations. This directly affects the riveting quality and the quality stability of subsequent products. Second, manual alignment is time-consuming and labor-intensive, and the operation is cumbersome and inefficient, thus reducing the efficiency of steel strip riveting. This utility model proposes an automatic riveting machine alignment device for continuous production of colored coating steel strips to overcome the above-mentioned technical problems existing in the existing related technologies.
[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0007] This utility model relates to an automatic riveting machine centering device applied to the continuous production of colored coating on strip steel. It includes a worktable, on the upper surface of which the riveting machine body is fixedly mounted. Two gear seats are fixedly connected to the upper surface of the worktable, each gear seat having a centering mechanism. The two sets of centering mechanisms are respectively located on the left and right sides of the riveting machine body. The centering mechanisms are used for centering the strip steel. A riveting seat is fixedly connected to the upper surface of the worktable. Both the riveting seat and the upper surface of the worktable have four sliding grooves extending to their lower surfaces. Four sliding blocks are provided on the worktable, slidingly fitted onto the worktable and the riveting seat through the sliding grooves. Positioning mechanisms are provided on the four sliding blocks, used to position the strip steel so that the ends of the two strip steels to be riveted can fit together, preventing the strip steel from shifting or deforming during the riveting process.
[0008] Furthermore, the centering mechanism includes two racks, and the front surface of the gear seat has two limiting grooves extending out of its rear surface. The racks are slidably connected to the limiting grooves. The gear seat has an inner cavity that communicates with the interior of the two limiting grooves. A support shaft is rotatably connected between the upper and lower inner walls of the inner cavity.
[0009] Furthermore, a gear is fixedly sleeved on the outer surface of the support shaft, the gear meshes with two racks, and side push plates are fixedly connected to both opposite ends of the two racks. Four slide rail grooves extending from the lower surface of the worktable are provided on the upper surface of the worktable, and the lower surface of the side push plate is slidably connected to the upper surface of the worktable.
[0010] Furthermore, two limiting blocks are fixedly connected to the lower surface of each side push plate. The limiting blocks are slidably connected to the corresponding slide rail grooves. Limiting slide rods are fixedly connected between the inner walls of the front and rear sides of each slide rail groove. The limiting blocks are slidably sleeved on the outer surface of the corresponding limiting slide rods. A support base is fixedly connected to the upper surface of the worktable. A cylinder is fixedly connected to the rear surface of each support base. The telescopic end of the cylinder slides through the front surface of the support base. The telescopic end of each cylinder is fixedly connected to the rear surface of the corresponding side push plate located at the rear.
[0011] Furthermore, the positioning mechanism includes a support platform, the lower surface of the sliding block extends slidably from the lower surface of the worktable through the sliding groove on the worktable and the riveting seat, the lower surfaces of the four sliding blocks are fixedly connected to the upper surface of the support platform, and the upper surfaces of the corresponding two sliding blocks are fixedly connected to an extrusion plate, and a support groove is provided on the lower surface of the worktable.
[0012] Furthermore, a bidirectional threaded rod is rotatably connected between the inner walls of the front and rear sides of the support groove. The rear end of the bidirectional threaded rod rotatably extends through the rear surface of the worktable. A motor is fixedly connected to the rear surface of the worktable. The rear end of the bidirectional threaded rod is fixedly connected to the rotation output shaft of the motor. Multiple springs are fixedly connected between the lower surface of the worktable and the upper surface of the support table. Two push blocks are threadedly fitted on the outer surface of the bidirectional threaded rod.
[0013] Furthermore, both push blocks are slidably connected to the support groove, and the lower surface of the push block extends out of the lower surface of the worktable through the support groove. The two push blocks are respectively located at the two opposite threads of the bidirectional threaded rod. Two trapezoidal blocks arranged in a mirror image are fixedly connected to the upper surface of the support table. The outer surfaces of the two adjacent sides of the two trapezoidal blocks are inclined surfaces. The lower surface of the push block is slidably connected to the inclined surface of the corresponding trapezoidal block.
[0014] This utility model has the following beneficial effects:
[0015] 1. This utility model, after being started by a cylinder, can drive two racks to move in opposite or opposite directions, thereby causing two side push plates to move closer or further apart. When the two side push plates move closer together, they center the strip steel, eliminating the need for manual centering. This makes centering between the two strip steels more labor-saving, precise, and efficient, ensuring the quality of strip steel riveting and increasing the practicality of the centering device of the automatic riveting machine.
[0016] 2. This utility model, by continuously moving the extrusion plate downwards, can extrude two sets of strip steel, allowing the two sets of strip steel to fit together and be pressed tightly onto the riveting seat. This avoids gaps between the two sets of strip steel that could cause deformation during the riveting process, further improving the accuracy of the strip steel riveting position and the quality of the strip steel riveting, thereby increasing the practicality of the centering device of the automatic riveting machine.
[0017] 3. Because the limiting block is slidably connected to the slide rail groove and the limiting block is slidably sleeved on the outer surface of the limiting slide rod, the combination of the limiting block and the slide rail groove, and the combination of the limiting block and the limiting slide rod, can increase the stability of the front and rear displacement of the side push plate, avoid the shaking during the front and rear displacement of the side push plate, and thus ensure the stability and accuracy of the front and rear side push plates in the process of centering the strip steel.
[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 is a cross-sectional view of the gear seat of this utility model;
[0022] Figure 3 is an enlarged view of section A in Figure 2 of this utility model;
[0023] Figure 4 is a schematic diagram of the bottom structure of the workbench of this utility model;
[0024] Figure 5 is a schematic diagram of the trapezoidal block structure of this utility model;
[0025] Figure 6 is a schematic diagram of the limiting slide bar structure of this utility model.
[0026] The attached diagram lists the components represented by each number as follows:
[0027] 1. Workbench; 2. Gear seat; 3. Inner cavity; 4. Gear; 5. Limiting slide groove; 6. Support shaft; 7. Rack; 8. Riveting machine body; 9. Slide rail groove; 10. Limiting block; 11. Limiting slide rod; 12. Side push plate; 13. Cylinder; 14. Support seat; 15. Sliding groove; 16. Riveting seat; 17. Support platform; 18. Sliding block; 19. Extrusion plate; 20. Trapezoidal block; 21. Support groove; 22. Bidirectional threaded rod; 23. Push block; 24. Motor; 25. Spring. Detailed Implementation
[0028] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.
[0029] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements 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 utility model.
[0030] Please refer to Figures 1-6. This utility model is an automatic riveting machine centering device applied to the continuous production of colored coating on strip steel. It includes a worktable 1, on the upper surface of which a riveting machine body 8 is fixedly mounted. Two gear seats 2 are fixedly connected to the upper surface of the worktable 1, and each gear seat 2 is equipped with a centering mechanism. The two sets of centering mechanisms are respectively located on the left and right sides of the riveting machine body 8. The centering mechanism is used for centering the strip steel. The upper surface of the worktable 1 is fixedly connected to the riveting machine body 8. The riveting seat 16 and the upper surface of the worktable 1 are both provided with four sliding grooves 15 extending out of their lower surfaces. The worktable 1 is provided with four sliding blocks 18. The sliding blocks 18 are slidably sleeved on the worktable 1 and the riveting seat 16 through the sliding grooves 15. The four sliding blocks 18 are provided with positioning mechanisms. The positioning mechanisms are used to position the strip steel so that the head and tail of the two strip steels that need to be riveted can fit together, and avoid the strip steel from shifting or deforming during the riveting process.
[0031] In use, the two strips to be riveted are passed through the positioning mechanism. First, the centering mechanism is activated to center the two strips during their relative displacement to ensure the accuracy of the riveting. Then, the positioning mechanism is activated to move downwards and press the two strips onto the riveting seat 16, so that the two strips can fit together and avoid gaps between them that could cause deformation during the riveting process, thus ensuring the accuracy and quality of the riveting position.
[0032] In one embodiment, the centering mechanism includes two racks 7, and two limiting grooves 5 extending from the rear surface of the front surface of the gear seat 2 are provided. The racks 7 are slidably connected to the limiting grooves 5. An inner cavity 3 is provided inside the gear seat 2. The inner cavity 3 communicates with the interior of the two limiting grooves 5. A support shaft 6 is rotatably connected between the upper and lower inner walls of the inner cavity 3.
[0033] The outer surface of the support shaft 6 is fixedly fitted with a gear 4, which meshes with two racks 7. The two opposite ends of the racks 7 are fixedly connected with side push plates 12. The upper surface of the worktable 1 is provided with four slide rail grooves 9 extending out of its lower surface. The lower surface of the side push plate 12 is slidably connected to the upper surface of the worktable 1.
[0034] Two limiting blocks 10 are fixedly connected to the lower surface of the side push plate 12. The limiting blocks 10 are slidably connected to the corresponding slide rail groove 9. Limiting slide rods 11 are fixedly connected between the inner walls of the front and rear sides of the slide rail groove 9. The limiting blocks 10 are slidably sleeved on the outer surface of the corresponding limiting slide rods 11. A support base 14 is fixedly connected to the upper surface of the worktable 1. A cylinder 13 is fixedly connected to the rear surface of the support base 14. The telescopic end of the cylinder 13 slides through the front surface of the support base 14. The telescopic end of the cylinder 13 is fixedly connected to the rear surface of the corresponding side push plate 12 located at the rear.
[0035] Furthermore, in specific applications, two sets of strip steel are respectively mounted on both sides of two sets of extrusion plates 19, with one set of strip steel passing between the two sets of extrusion plates 19 and the riveting seat 16, and the other set of strip steel passing between the two sets of extrusion plates 19 and the riveting seat 16 from the opposite direction, and the bottom end face of the other set of strip steel is in contact with the top end face of the first set of strip steel; then, starting the cylinder 13 can drive the side push plate 12 located on the rear side to move back and forth, thereby synchronously driving the rack 7 fixedly connected to the side push plate 12 located on the rear side to move forward. The rear displacement occurs because gear 4 meshes with two racks 7. With the cooperation of gear 4 and two racks 7, after the cylinder 13 is started, it can drive the two racks 7 to move in opposite or opposite directions, thereby driving the two side push plates 12 to move closer or further apart. When the two side push plates 12 move closer together, they center the strip steel, eliminating the need for manual centering of the strip steel. This makes the centering work between the two strip steels more labor-saving, accurate and efficient, ensuring the quality of strip steel riveting and increasing the practicality of the centering device of the automatic riveting machine.
[0036] In one embodiment, the positioning mechanism includes a support platform 17, the lower surface of the sliding block 18 extends slidably from the lower surface of the worktable 1 through the sliding groove 15 on the worktable 1 and the riveting seat 16, the lower surfaces of the four sliding blocks 18 are fixedly connected to the upper surface of the support platform 17, and the upper surfaces of the corresponding two sliding blocks 18 are fixedly connected to the pressing plate 19, and the lower surface of the worktable 1 is provided with a support groove 21.
[0037] A bidirectional threaded rod 22 is rotatably connected between the inner walls of the front and rear sides of the support groove 21. The rear end of the bidirectional threaded rod 22 rotatably passes through the rear surface of the worktable 1. A motor 24 is fixedly connected to the rear surface of the worktable 1. The rear end of the bidirectional threaded rod 22 is fixedly connected to the rotation output shaft of the motor 24. Multiple springs 25 are fixedly connected between the lower surface of the worktable 1 and the upper surface of the support platform 17. Two push blocks 23 are threadedly sleeved on the outer surface of the bidirectional threaded rod 22.
[0038] Both push blocks 23 are slidably connected to the support groove 21. The lower surface of the push block 23 extends out of the lower surface of the worktable 1 through the support groove 21. The two push blocks 23 are respectively located at the two opposite threads of the bidirectional threaded rod 22. The upper surface of the support table 17 is fixedly connected to two trapezoidal blocks 20 arranged in a mirror image. The outer surfaces of the two adjacent trapezoidal blocks 20 are inclined surfaces. The lower surface of the push block 23 is slidably connected to the inclined surface of the corresponding trapezoidal block 20.
[0039] In this design, initially, multiple springs 25 support the support platform 17, trapezoidal block 20, extrusion plate 19, and sliding block 18. After the two strips are aligned, the starting motor 24 drives the fixed bidirectional threaded rod 22 at the output end to rotate. During the rotation of the bidirectional threaded rod 22, the two sets of push blocks 23 move in opposite or relative directions, causing the two sets of push blocks 23 to move in opposite directions. When the two sets of push blocks 23 move away from each other, they contact the inclined surface of the trapezoidal block 20 during their movement. As the two sets of push blocks 23 continue to move, they apply a downward pushing force to the trapezoidal block 20, thereby pushing the two sets of push blocks 23 downwards. The movement causes the two sets of trapezoidal blocks 20 to move the support platform 17 fixed at the bottom, which in turn causes the support platform 17 to move the sliding block 18 fixed on the upper surface downward, so that the sliding block 18 causes the extrusion plate 19 fixed on the upper surface to move downward. At the same time, the support platform 17 stretches the spring 25 fixed on the upper surface during the downward movement. As the extrusion plate 19 continues to move downward, it can extrude the two sets of strip steel, so that the two sets of strip steel can fit together and be pressed tightly on the riveting seat 16. This avoids the gap between the two sets of strip steel, which would cause the strip steel to deform during the riveting process. This further improves the accuracy of the strip steel riveting position and the quality of the strip steel riveting, thereby increasing the practicality of the centering device of the automatic riveting machine.
[0040] When the starting motor 24 drives the two push blocks 23 to approach each other, the release force of multiple springs 25 causes the springs 25 to drive the support platform 17 to reset, thereby causing the support platform 17 to sequentially drive the sliding block 18, the pressing plate 19 and the trapezoidal block 20 to reset.
[0041] In this scheme, because the limiting block 10 is slidably connected to the slide rail groove 9 and the limiting block 10 is slidably sleeved on the outer surface of the limiting slide rod 11, the combination of the limiting block 10 and the slide rail groove 9, and the combination of the limiting block 10 and the limiting slide rod 11, can both increase the stability of the front and rear displacement of the side push plate 12, avoid the side push plate 12 from shaking during the front and rear displacement, and thus ensure the stability and accuracy of the front and rear side push plates 12 in the process of centering the strip steel.
[0042] In summary, by utilizing the above-mentioned technical solution of this utility model, two sets of strip steel are respectively mounted on both sides of two sets of extrusion plates 19, with one set of strip steel passing through the space between the two sets of extrusion plates 19 and the riveting seat 16, and the other set of strip steel passing through the space between the two sets of extrusion plates 19 and the riveting seat 16 from the opposite direction, and with the bottom end face of the other set of strip steel in contact with the top end face of the first set of strip steel; then, starting the cylinder 13 can drive the side push plate 12 located on the rear side to move back and forth, thereby synchronously driving the side push plate 12 located on the rear side to be fixedly connected. The rack 7 moves back and forth. Because the gear 4 meshes with the two racks 7, the gear 4 and the two racks 7 work together. After the cylinder 13 is started, the two racks 7 can move in opposite directions, thereby causing the two side push plates 12 to move closer or further apart. When the two side push plates 12 move closer together, they center the strip. In the initial state, multiple springs 25 support the support platform 17, trapezoidal block 20, extrusion plate 19, and sliding block 18. After the two strips are centered, the motor 2 is started. 4. The bidirectional threaded rod 22, fixed at the output end, rotates, causing the two sets of push blocks 23 to move in opposite or relative directions during rotation. This results in the two sets of push blocks 23 moving in opposite directions. When the two sets of push blocks 23 move away from each other, they contact the inclined surface of the trapezoidal block 20 during their movement. As the two sets of push blocks 23 continue to move, they apply a downward pushing force to the trapezoidal block 20, causing each set of push blocks 23 to push the two sets of trapezoidal blocks 20 downwards. The forming block 20 drives the support platform 17 fixed at the bottom to move, which in turn causes the support platform 17 to drive the sliding block 18 fixed on the upper surface to move downward, so that the sliding block 18 drives the extrusion plate 19 fixed on the upper surface to move downward. At the same time, the support platform 17 stretches the spring 25 fixed on the upper surface during the downward movement. As the extrusion plate 19 continues to move downward, it can extrude the two sets of strip steel, so that the two sets of strip steel can fit together and be pressed tightly on the riveting seat 16, avoiding the gap between the two sets of strip steel and the deformation of the strip steel during the riveting process.
[0043] Through the above technical solution, 1. After the cylinder 13 is started, it can drive the two racks 7 to move in opposite or opposite directions, thereby driving the two side push plates 12 to move closer or further apart. When the two side push plates 12 move closer to each other, they can center the strip steel without manual centering of the strip steel, making the centering work between the two strip steels more labor-saving, accurate and efficient, ensuring the quality of strip steel riveting, and increasing the practicality of the centering device of the automatic riveting machine.
[0044] 2. As the extrusion plate 19 continues to move downward, it can extrude the two sets of strip steel, allowing the two sets of strip steel to fit together and be pressed tightly onto the riveting seat 16. This prevents gaps between the two sets of strip steel from causing deformation during the riveting process, further improving the accuracy of the strip steel riveting position and the quality of the strip steel riveting, thereby increasing the practicality of the centering device of the automatic riveting machine.
[0045] 3. Because the limiting block 10 is slidably connected to the slide rail groove 9 and the limiting block 10 is slidably sleeved on the outer surface of the limiting slide rod 11, the combination of the limiting block 10 and the slide rail groove 9, and the combination of the limiting block 10 and the limiting slide rod 11, can increase the stability of the front and rear displacement of the side push plate 12, avoid the side push plate 12 from shaking during the front and rear displacement, and thus ensure the stability and accuracy of the front and rear side push plates 12 in the process of centering the strip steel.
[0046] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0047] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.
Claims
1. An automatic riveting machine centering device for continuous production of color coating on steel strip, comprising a worktable (1), characterized in that, The upper surface of the workbench (1) is fixedly mounted with a riveting machine body (8). Two gear seats (2) are fixedly connected to the upper surface of the workbench (1). Each of the two gear seats (2) is equipped with a centering mechanism. The two sets of centering mechanisms are respectively located on the left and right sides of the riveting machine body (8). The centering mechanism is used to center the strip steel. A riveting seat (16) is fixedly connected to the upper surface of the workbench (1). Both the riveting seat (16) and the upper surface of the workbench (1) are open. The worktable (1) is provided with four sliding grooves (15) extending from its lower surface. Four sliding blocks (18) are provided on the worktable (1). The sliding blocks (18) are slidably sleeved on the worktable (1) and the riveting seat (16) through the sliding grooves (15). The four sliding blocks (18) are provided with positioning mechanisms. The positioning mechanisms are used to position the strip steel so that the head and tail of the two strip steels that need to be riveted can fit together, and avoid the strip steel from shifting or deforming during the riveting process between the head and tail.
2. The centering device for an automatic riveting machine applied to the continuous production of color coating on strip steel according to claim 1, characterized in that, The centering mechanism includes two racks (7). The front surface of the gear seat (2) has two limiting grooves (5) extending out of its rear surface. The racks (7) are slidably connected to the limiting grooves (5). The gear seat (2) has an inner cavity (3) that communicates with the inside of the two limiting grooves (5). A support shaft (6) is rotatably connected between the upper and lower inner walls of the inner cavity (3).
3. The centering device for an automatic riveting machine applied to the continuous production of color coating on strip steel according to claim 2, characterized in that, A gear (4) is fixedly sleeved on the outer surface of the support shaft (6). The gear (4) meshes with two racks (7). Side push plates (12) are fixedly connected to both ends of the two racks (7) facing away from each other. Four slide rail grooves (9) extending from the lower surface of the worktable (1) are provided on the upper surface of the worktable (1). The lower surface of the side push plate (12) is slidably connected to the upper surface of the worktable (1).
4. The centering device for an automatic riveting machine applied to the continuous production of color coating on strip steel according to claim 3, characterized in that, Two limiting blocks (10) are fixedly connected to the lower surface of the side push plate (12). The limiting blocks (10) are slidably connected to the corresponding slide rail groove (9). Limiting slide rods (11) are fixedly connected between the inner walls of the front and rear sides of the slide rail groove (9). The limiting blocks (10) are slidably sleeved on the outer surface of the corresponding limiting slide rods (11). A support seat (14) is fixedly connected to the upper surface of the worktable (1). A cylinder (13) is fixedly connected to the rear surface of the support seat (14). The telescopic end of the cylinder (13) slides through the front surface of the support seat (14). The telescopic end of the cylinder (13) is fixedly connected to the rear surface of the corresponding side push plate (12) located on the rear side.
5. The centering device for an automatic riveting machine applied to the continuous production of color coating on strip steel according to claim 1, characterized in that, The positioning mechanism includes a support platform (17). The lower surface of the sliding block (18) extends slidably from the lower surface of the worktable (1) through the sliding groove (15) on the worktable (1) and the riveting seat (16). The lower surfaces of the four sliding blocks (18) are fixedly connected to the upper surface of the support platform (17). The upper surfaces of the corresponding two sliding blocks (18) are fixedly connected to the extrusion plate (19). The lower surface of the worktable (1) is provided with a support groove (21).
6. The centering device for an automatic riveting machine applied to the continuous production of color coating on strip steel according to claim 5, characterized in that, A bidirectional threaded rod (22) is rotatably connected between the inner walls of the front and rear sides of the support groove (21). The rear end of the bidirectional threaded rod (22) rotatably passes through the rear surface of the worktable (1). A motor (24) is fixedly connected to the rear surface of the worktable (1). The rear end of the bidirectional threaded rod (22) is fixedly connected to the rotation output shaft of the motor (24). Multiple springs (25) are fixedly connected between the lower surface of the worktable (1) and the upper surface of the support platform (17). Two push blocks (23) are threadedly fitted on the outer surface of the bidirectional threaded rod (22).
7. The centering device for an automatic riveting machine applied to continuous production of color coating on strip steel according to claim 6, characterized in that, Both push blocks (23) are slidably connected to the support groove (21). The lower surface of the push block (23) extends out of the lower surface of the worktable (1) through the support groove (21). The two push blocks (23) are located at the two opposite threads of the bidirectional threaded rod (22). The upper surface of the support table (17) is fixedly connected to two trapezoidal blocks (20) arranged in a mirror image. The outer surfaces of the two adjacent trapezoidal blocks (20) are inclined. The lower surface of the push block (23) is slidably connected to the inclined surface of the corresponding trapezoidal block (20).