Splicing longitudinal seam automatic welding machine with automatic feeding roller

Abstract

The utility model relates to the field of welding equipment discloses a kind of spliced longitudinal joint automatic welder with automatic feeding roller, and the welder includes machine case main body, welding assembly, crossbeam, bearing plate, lifting assembly and self-adapting clamping mechanism;The clamping mechanism is arranged on bearing plate, including drive assembly, transmission part with inclined slot being opened and the connecting component of connecting support piece, the connecting column of connecting component and the inclined slot sliding fit of transmission part and the transverse slot of bearing plate, the synchronous centering clamping of support piece is converted to the movement of drive assembly;Lifting assembly drives bearing plate to lift workpiece to the positioning of crossbeam.The welder is also provided with automatic feeding mechanism to realize the unmanned transfer of workpiece.The utility model solves the problem that the prior art feeding and clamping rely on manual and have poor adaptability to different size workpieces, and by integrated automatic feeding, self-adapting clamping and positioning structure, significantly improves production efficiency and welding quality, reduces labor cost.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment, and in particular to an automatic welding machine for splicing longitudinal seams with an automatic feeding roller. Background Technology

[0002] The automatic longitudinal seam welding machine is a key piece of equipment in modern industrial production for the automated welding of longitudinal seams on cylindrical or plate-shaped workpieces. It is widely used in pressure vessels, pipeline manufacturing, storage tank production and other fields.

[0003] In current technological practices, conventional automatic longitudinal seam welding machines primarily focus on automating the welding process itself, achieving high-quality weld formation through precise welding components and control systems. However, in the complete production process, the transfer of workpieces from the previous process to the welding station, as well as their precise positioning and clamping before welding, still heavily rely on manual operation or independent auxiliary equipment. In this mode of operation, workers typically need to manually or via hoisting equipment place the heavy workpieces onto the welding machine's support platform. This process is not only labor-intensive and inefficient, but also makes it difficult to guarantee the initial placement accuracy of the workpieces, hindering subsequent precise alignment.

[0004] Once the workpiece is placed on the platform, it needs to be clamped to ensure stability during the welding process. Existing equipment mostly uses manually adjustable clamping devices or special fixtures for workpieces of specific sizes. When welding workpieces of different diameters or sizes, complex mechanical adjustments to the clamping devices are necessary, or even the entire set of fixtures may need to be replaced. This process is time-consuming and labor-intensive, leading to frequent production line downtime, severely impacting production continuity and the equipment's adaptability to producing multiple product specifications, and failing to meet the demands of modern flexible manufacturing. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an automatic longitudinal seam welding machine with an automatic feeding roller, which aims to improve the problems of existing automatic longitudinal seam welding machines that rely on manual operation for feeding and workpiece clamping, have poor adaptability of clamps to workpieces of different sizes, and are complicated and time-consuming to adjust.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An automatic longitudinal seam welding machine with an automatic feeding roller includes a main body, a welding assembly and a crossbeam mounted on the main body, a load-bearing plate mounted below the crossbeam, a lifting assembly, at least two support members, and a clamping mechanism for centering movement of the drive support members.

[0008] The load-bearing plate has a horizontal groove, and the clamping mechanism includes a drive component, a transmission component connected to the output end of the drive component and having an inclined groove, and a connecting component connecting the support component and the transmission component.

[0009] Furthermore, the connecting column of the connecting component is movably inserted through the inclined groove of the transmission component and slides in cooperation with the transverse groove of the load-bearing plate, and the lifting component is connected between the main body of the chassis and the load-bearing plate.

[0010] Preferably, the driving component is an electric push rod, and the transmission component is a push-pull plate connected to the output end of the electric push rod.

[0011] Preferably, the automatic longitudinal seam welding machine with automatic feeding rollers further includes a feeding mechanism disposed on one side of the main body of the machine casing.

[0012] Furthermore, the feeding mechanism includes a conveyor and a transfer assembly for receiving and transferring workpieces; the transfer assembly includes a receiving shell, a load-bearing component for supporting the receiving shell, a first motor for driving the load-bearing component to rotate as a whole, and a second motor for driving the receiving shell to tilt.

[0013] Furthermore, the load-bearing component includes an inner rotating shaft and an outer rotating shaft arranged coaxially; the first motor is connected to the outer rotating shaft via a first worm and a first worm wheel.

[0014] Furthermore, the second motor is connected to the inner rotating shaft via a second worm and a second worm wheel; a second bevel gear is fixed to the end of the inner rotating shaft, the second bevel gear meshes with a first bevel gear, and the first bevel gear is connected to the receiving shell via a rotating shaft and a fixed rod.

[0015] Preferably, the load-bearing component and the receiving shell are connected by a fastener.

[0016] Preferably, the chassis body is fixed to the base plate.

[0017] Preferably, the number of the support members is four, and they are arranged symmetrically in pairs on the load-bearing plate.

[0018] This utility model has the following beneficial effects:

[0019] 1. This utility model solves the problems of workpiece clamping relying on manual labor, poor adaptability and inability to automatically center in the prior art by setting a clamping mechanism consisting of a driving component, a transmission component with an inclined groove and a connecting component that slides with the inclined groove and the transverse groove. It achieves the technical effect of automatically adapting to workpieces of different sizes and performing fast and accurate centering and clamping, which significantly improves the preparation efficiency and positioning accuracy before welding.

[0020] 2. This utility model, by adding a lifting component and a crossbeam that cooperate with the clamping mechanism, can automatically lift the workpiece to a precise welding height for positioning after it is reliably clamped. This solves the technical problems of cumbersome positioning and low accuracy of traditional equipment, realizes fully automatic and precise positioning of the welding station, and ensures the consistency of welding quality. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of an automatic longitudinal seam welding machine with an automatic feeding roller proposed in this utility model.

[0022] Figure 2 This is a cross-sectional view of the load-bearing component of an automatic longitudinal seam welding machine with an automatic feeding roller proposed in this utility model.

[0023] Figure 3 This is a schematic diagram of the load-bearing plate of an automatic longitudinal seam welding machine with an automatic feeding roller proposed in this utility model.

[0024] Figure 4 This is a bottom view of the load-bearing plate of an automatic longitudinal seam welding machine with an automatic feeding roller proposed in this utility model.

[0025] Figure 5 This is a structural diagram of the lifting assembly of an automatic longitudinal seam welding machine with an automatic feeding roller proposed in this utility model.

[0026] Legend:

[0027] 1. Base plate; 2. Conveyor; 3. Chassis body; 4. Crossbeam; 5. Welding assembly; 6. First motor; 7. Second motor; 8. Load-bearing component; 9. Receiving shell; 10. First worm gear; 11. Second worm gear; 12. Fixing component; 13. First bevel gear; 14. First worm wheel; 15. Fixing rod; 16. Second bevel gear; 17. Inner rotating shaft; 18. Outer rotating shaft; 19. Rotating shaft; 20. Load-bearing plate; 21. Support component; 22. Connecting rod; 23. Horizontal groove; 24. Electric push rod; 25. Push-pull plate; 26. Inclined groove; 27. Connecting column; 28. Lifting assembly; 29. ​​Second worm wheel. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figures 1-5The present invention provides an embodiment of an automatic longitudinal seam welding machine with an automatic feeding roller. The automatic longitudinal seam welding machine with an automatic feeding roller includes a main body 3 of the chassis fixedly mounted on a base plate 1. A crossbeam 4 is fixedly connected to the upper part of the main body 3. A welding assembly 5 is also installed on the main body 3. The welding assembly 5 is located below the crossbeam 4 and can move along the length direction of the crossbeam 4.

[0030] Specifically, a lifting assembly 28 is installed at the lower end of the main body 3 of the chassis. The output end of the lifting assembly 28 extends upward and is fixedly connected to the bottom of the load-bearing plate 20. The lifting assembly 28 is used to drive the load-bearing plate 20 to move vertically. The load-bearing plate 20 is located directly below the crossbeam 4. A horizontal groove 23 extending along its width direction is opened on the upper surface of the load-bearing plate 20. At least two support members 21 are also movably arranged on the upper surface of the load-bearing plate 20 for directly supporting and clamping the workpiece.

[0031] A drive assembly is also fixed at the bottom of the load-bearing plate 20. In this embodiment, the drive assembly is preferably an electric push rod 24. The output end of the electric push rod 24 is connected to a transmission component, which is a push-pull plate 25. The push-pull plate 25 has a slanted groove 26. The support member 21 is linked with the transmission component through a connecting assembly.

[0032] The connecting assembly includes a connecting rod 22 and a connecting column 27. One end of the connecting rod 22 is fixedly connected to the bottom of the support member 21, and the other end is fixedly connected to the connecting column 27. The connecting column 27 is movably inserted through the inclined groove 26 of the push-pull plate 25, and the end of the connecting column 27 can also be slidably accommodated in the transverse groove 23 of the load-bearing plate 20. When the electric push rod 24 is working, its telescopic movement drives the push-pull plate 25 to move linearly along the length of the load-bearing plate 20. Since the connecting column 27 is simultaneously guided by the inclined groove 26 and limited laterally by the transverse groove 23, the linear movement of the push-pull plate 25 is converted into all the connecting columns 27 driving the support member 21 to move synchronously in opposite directions or in opposite directions along the transverse groove 23, thereby realizing the automatic clamping and loosening of the workpiece. This structure can adapt to workpieces of different sizes and ensure that their center position remains unchanged. As for the specific structure of the lifting assembly 28, it can adopt the mature screw jack or hydraulic lifting cylinder in the prior art, which will not be described in detail here.

[0033] As a preferred embodiment, a feeding mechanism is also provided on one side of the main body 3 of the chassis. The feeding mechanism includes a conveyor 2 and a transfer assembly for receiving and transferring workpieces. The conveyor 2 is fixed on the base plate 1, and its discharge end is adjacent to the transfer assembly. The transfer assembly includes a receiving shell 9. The receiving shell 9 is rotatably connected to the main body 3 of the chassis through a load-bearing member 8. The load-bearing member 8 and the receiving shell 9 are fixedly connected through a fixing member 12. A first motor 6 and a second motor 7 for driving the transfer assembly are also installed on the main body 3 of the chassis.

[0034] Specifically, the load-bearing component 8 includes an inner rotating shaft 17 and an outer rotating shaft 18 arranged coaxially. The output shaft of the first motor 6 is connected to a first worm gear 10, which meshes with a first worm wheel 14 for transmission. The first worm wheel 14 is fixed on the outer rotating shaft 18, thereby driving the load-bearing component 8 and the receiving shell 9 to rotate as a whole. The output shaft of the second motor 7 is connected to a second worm gear 11, which meshes with a second worm wheel 29 for transmission. The second worm wheel 29 is fixed on the inner rotating shaft 17. A second bevel gear 16 is fixed at the end of the inner rotating shaft 17. The second bevel gear 16 meshes with a first bevel gear 13. The first bevel gear 13 is fixed on a rotating shaft 19. A fixing rod 15 is connected to the end of the rotating shaft 19. The fixing rod 15 is fixedly connected to the receiving shell 9, thereby driving the receiving shell 9 to tilt.

[0035] As another preferred embodiment, in order to ensure the stability and centering effect of the clamping, the number of support members 21 is preferably four, and they are symmetrically arranged in pairs on the load-bearing plate 20.

[0036] Working Principle: In operation, the automatic longitudinal seam welding machine with an automatic feeding roller of this invention delivers the workpiece to the receiving shell 9 via the conveyor 2. Then, the first motor 6 starts, driving the outer rotating shaft 18 of the load-bearing component 8 to rotate via the first worm gear 10 and the first worm wheel 14, causing the receiving shell 9 to rotate 90 degrees. Next, the second motor 7 starts, and through the linkage of the second worm gear 11, the second worm wheel 29, the inner rotating shaft 17, the second bevel gear 16, the first bevel gear 13, the rotating shaft 19, and the fixed rod 15, the receiving shell 9 tilts towards the load-bearing plate 20, causing the workpiece to fall onto the load-bearing plate. Between the support members 21 on 20, at this time, the drive component, namely the electric push rod 24, is activated, pushing the push-pull plate 25 to move. The inclined groove 26 on the push-pull plate 25 forces the connecting column 27 to make a lateral centering movement in the transverse groove 23, driving the support member 21 to clamp the workpiece synchronously. After clamping, the lifting component 28 drives the load-bearing plate 20 to rise together with the workpiece until the top of the workpiece abuts against the lower surface of the crossbeam 4, accurately positioning the longitudinal seam to be welded. Finally, the welding component 5 moves along the crossbeam 4 to complete the welding operation. After welding, all components are reset, completing a fully automatic feeding, clamping, positioning and welding cycle.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic longitudinal seam welding machine with an automatic feeding roller, comprising a main body (3) and welding components (5) and a crossbeam (4) disposed on the main body (3), characterized in that, Also includes: A load-bearing plate (20) is provided below the crossbeam (4), and a transverse groove (23) is provided on the load-bearing plate (20); A lifting assembly (28) is installed inside the main body of the chassis (3) and connected to the load-bearing plate (20); At least two support members (21) are provided on the load-bearing plate (20); A clamping mechanism that drives the support member (21) to move in a centered position, the clamping mechanism comprising: Drive assembly disposed at the bottom of the load-bearing plate (20); A transmission component connected to the output end of the drive assembly, wherein the transmission component has an inclined groove (26); A connecting assembly connecting the support member (21) and the transmission member, the connecting assembly including a connecting rod (22) and a connecting column (27), the connecting column (27) being movably inserted through the inclined groove (26) and slidingly engaged with the transverse groove (23).

2. The automatic longitudinal seam welding machine with an automatic feeding roller according to claim 1, characterized in that, The driving component is an electric push rod (24), and the transmission component is a push-pull plate (25) connected to the output end of the electric push rod (24).

3. The automatic longitudinal seam welding machine with an automatic feeding roller according to claim 1, characterized in that, It also includes a feeding mechanism located on one side of the main body (3) of the chassis.

4. The automatic longitudinal seam welding machine with an automatic feeding roller according to claim 3, characterized in that, The feeding mechanism includes a conveyor (2) and a transfer assembly for receiving and transferring workpieces; the transfer assembly includes a receiving shell (9), a load-bearing member (8) for supporting the receiving shell (9), a first motor (6) for driving the load-bearing member (8) to rotate as a whole, and a second motor (7) for driving the receiving shell (9) to tilt.

5. The automatic longitudinal seam welding machine with an automatic feeding roller according to claim 4, characterized in that, The load-bearing component (8) includes an inner rotating shaft (17) and an outer rotating shaft (18) arranged coaxially; the first motor (6) is connected to the outer rotating shaft (18) via a first worm (10) and a first worm wheel (14).

6. The automatic longitudinal seam welding machine with an automatic feeding roller according to claim 5, characterized in that, The second motor (7) is connected to the inner rotating shaft (17) via the second worm (11) and the second worm wheel (29); the end of the inner rotating shaft (17) is fixed with a second bevel gear (16), which meshes with a first bevel gear (13), and the first bevel gear (13) is connected to the receiving shell (9) via a rotating shaft (19) and a fixed rod (15).

7. The automatic longitudinal seam welding machine with an automatic feeding roller according to claim 4, characterized in that, The load-bearing component (8) is connected to the receiving shell (9) by a fastener (12).

8. The automatic longitudinal seam welding machine with an automatic feeding roller according to claim 1, characterized in that, The main body of the chassis (3) is fixed on the base plate (1).

9. The automatic longitudinal seam welding machine with an automatic feeding roller according to claim 1, characterized in that, The number of the support members (21) is four, and they are arranged symmetrically in pairs on the load-bearing plate (20).

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