A grid bar welding device

Abstract

The present invention relates to the technical field of grid bar welding, and specifically discloses a grid bar welding device, which includes a welding mechanism, a sliding mechanism and two installation mechanisms. A rotating mechanism is rotatably connected to the installation mechanism, and three clamping mechanisms are provided on the rotating mechanism; the rotating mechanism includes a rotating component and a sliding component rotatably connected to the installation mechanism. The rotating component includes a turntable rotatably connected to the installation mechanism and a rotating cylinder installed on the turntable. The rotating cylinder is slidably arranged on the sliding component, and the sliding component can drive the turntable to rotate; the grid bar welding device of the present invention can continue to push grid bars to other idle clamping plates while welding the grid bars, facilitating timely replenishment after the grid bars in the welding area are welded, thereby achieving the effect of continuous feeding, facilitating continuous welding of grid bars, and further improving the welding efficiency of grid bars.

Description

Technical Field

[0001] The present invention relates to the technical field of grid bar welding, and particularly relates to a grid bar welding device. Background Art

[0002] A grid structure is a large-span covered space structure formed by connecting multiple grid connecting rods in a certain grid form through nodes. The grid structure has the advantages of good integrity, large spatial stiffness, and stable structure. It not only has a light self-weight, small on-site construction workload, and fast construction speed, but also has a small grid structure height and can effectively utilize space. Therefore, it is widely used in the construction industry. The key process of grid manufacturing is the assembly and welding of grid bars and cone heads, that is, a conical head is assembled at each end of a steel pipe and welded. The weld between the steel pipe and the head is an annular weld, with a simple and regular shape, and the two annular welds at both ends are the same.

[0003] The Chinese patent application document with the publication number CN118023796A discloses a grid bar welding device. The grid bar welding device includes a welding frame, a loading frame, and an unloading frame. An automatic loading track is provided inside the loading frame, and an automatic unloading track is provided inside the unloading frame. The automatic unloading track is inclined at an angle. The loading frame and the unloading frame are arranged at both ends of the welding frame. A welding track is provided inside the welding frame. A first welding robot and a second welding robot are fixedly provided on one side of the welding frame. A first welding machine and a second welding machine are respectively provided inside the welding frame and on one side of the first welding robot and the second welding robot; a first vision system and a second vision system are respectively provided on the moving ends of the first welding robot and the second welding robot; a track laser system is provided inside the welding track. Both the first vision system and the second vision system adopt laser scanning systems. A system industrial computer electrically connected to the first vision system, the second vision system, and the track laser system is provided on one side of the welding frame.

[0004] However, the structural design of the above related technology: during the welding process of the grid bar, after the grid bar is welded, the next grid bar welding operation can only be carried out after the welded grid bar is moved out of the welding station. Since the grid bar is relatively long, it takes a certain amount of time for loading. During the loading process of the grid bar, the welding robot is in a standby state, making continuous welding inconvenient, thus resulting in a low welding efficiency of the grid bar, and further affecting the production efficiency of the grid bar.

[0005] Therefore, a grid bar welding device is proposed to facilitate solving the problems mentioned above. Summary of the Invention

[0006] The present invention provides a grid bar welding device, aiming to solve the problem in the related technology that the loading takes a long time and continuous welding is inconvenient, thus affecting the welding efficiency.

[0007] The grid frame rod welding device of the present invention includes a welding mechanism, a sliding mechanism and two mounting mechanisms. A rotating mechanism is rotatably connected to the mounting mechanism, and three clamping mechanisms are provided on the rotating mechanism;

[0008] The rotating mechanism includes a rotating component and a sliding component rotatably connected to the mounting mechanism. The rotating component includes a turntable rotatably connected to the mounting mechanism and a rotating cylinder mounted on the turntable. The rotating cylinder is slidably arranged on the sliding component, and the sliding component can drive the turntable to rotate;

[0009] The clamping mechanism includes a clamping component and a positioning component elastically slidably connected transversely in the clamping component. The clamping component includes a clamping disc elastically slidably connected transversely on the turntable, and the clamping disc can rotate on the turntable.

[0010] When welding the grid frame rod, first push the grid frame rod along the tangent direction of the clamping disc between the two clamping discs. At this time, under the action of the conical head on the grid frame rod, the clamping disc is pushed closer to the turntable. When the grid frame rod completely enters between the two clamping discs, the grid frame rod can be clamped by the two clamping discs. Then, the sliding component drives the turntable to rotate, so as to drive the clamped grid frame rod to turn to the welding area. When the grid frame rod enters the welding area, the positioning component approaches the grid frame rod to clamp the grid frame rod to complete the feeding of the grid frame rod. At this time, the sliding component drives the clamping disc to rotate alone, and the clamping disc drives the grid frame rod to rotate to weld the grid frame rod. While the grid frame rod is being welded, the grid frame rod can be continuously pushed to other idle clamping discs, which is convenient for timely replenishment after the grid frame rod in the welding area is welded, thus achieving the effect of continuous feeding, facilitating continuous welding of the grid frame rod, and further improving the welding efficiency of the grid frame rod.

[0011] Preferably, the sliding mechanism includes a mounting frame, an electric slide rail two, two sliding seats two and a plurality of grid frames. The electric slide rail two is mounted on the mounting frame, the two sliding seats two are respectively slidably connected to both sides of the top of the electric slide rail two, and the plurality of grid frames are all mounted on one side of the top of the mounting frame.

[0012] When the grid frame rod is welded, the welded grid frame rod is driven by the turntable to rotate and move out of the welding area. When the welded grid frame rod contacts the grid frame during rotation, at this time, through the blocking of the grid frame, the grid frame rod can be pushed out between the two clamping discs to complete the automatic unloading of the welded grid frame rod.

[0013] Preferably, the mounting mechanism includes a fixed box, a hydraulic cylinder, a motor and a limiting component. The turntable is rotatably connected to one side of the fixed box, the hydraulic cylinder is mounted on the top of the other side of the fixed box, and the motor is mounted in the middle of the other side of the fixed box and is connected to the sliding component.

[0014] Preferably, the limiting component includes a fixing plate and a plurality of rollers. The fixing plate is arranged on one side of the fixing box. The fixing plate is arc-shaped. The plurality of rollers are evenly distributed inside the fixing plate along the track of the fixing plate, and the outer sides of the rollers are tangent to the inner side of the fixing plate.

[0015] Preferably, the rotating component further includes a first gear, a first internal spline groove and a second internal spline groove. The first internal spline groove is opened on the rotating cylinder, and the second internal spline groove is opened on the first gear.

[0016] Preferably, the sliding component includes an internal spline cylinder, a first external spline cylinder, a second external spline cylinder and an external spline shaft. The internal spline cylinder is slidably connected inside the rotating cylinder. The first external spline cylinder is installed on the outer side of one end of the internal spline cylinder and is adapted to the first internal spline groove. The second external spline cylinder is installed in the middle of the outer side of the internal spline cylinder and is adapted to the second internal spline groove.

[0017] By the adaptation of the first external spline cylinder to the first internal spline groove, the internal spline cylinder can drive the rotating cylinder to rotate through the first external spline cylinder. By the adaptation of the second external spline cylinder to the second internal spline groove, the internal spline cylinder can drive the first gear to rotate through the second external spline cylinder.

[0018] Preferably, one end of the external spline shaft is slidably connected inside the internal spline cylinder, and the other end of the external spline shaft is rotatably connected to the fixing box and fixed to the motor.

[0019] Preferably, the clamping mechanism further includes an arc-shaped limiting plate. The limiting plate is installed on the turntable and located outside the clamping disc.

[0020] Through the limiting plate, the grid bar can be limited during the process of pushing the grid bar into the two clamping discs to prevent the grid bar from moving out of the clamping disc. When the grid bar moves to the welding area, the grid bar can be supported by the limiting plate to prevent the grid bar from slipping downward and deviating from the positioning component after moving to the welding area.

[0021] Preferably, the clamping component further includes a connecting cylinder and a second gear. The connecting cylinder is elastically slidably connected to the turntable in the transverse direction. The connecting cylinder can rotate on the turntable. The clamping disc is installed at one end of the connecting cylinder. The second gear is installed at the other end of the connecting cylinder. The first gear can be meshed with the second gear.

[0022] When the positioning shaft slides in the connecting cylinder, the positioning shaft enters the conical head of the grid bar. At the same time, the positioning shaft presses the conical head through the positioning ring on the limiting block in the limiting groove to clamp the grid bar to ensure the stability of the grid bar during welding.

[0023] Preferably, the positioning assembly includes a positioning shaft, a positioning ring, a top plate, two limit blocks and two limit slots. The positioning shaft is elastically and slidably connected to the inside of the connecting cylinder in the transverse direction. The positioning ring is slidably connected to the outside of one end of the positioning shaft. The two limit blocks are respectively installed on both sides inside the positioning ring. The two limit slots are respectively opened on both sides of the positioning shaft. The limit blocks are slidably connected in the limit slots. The top plate is installed at the other end of the positioning shaft. A slot for accommodating the positioning ring is opened in the middle of one end of the clamping disc.

[0024] By adopting the above technical solution, the beneficial effect of the present invention is that while the grid bars are being welded, the grid bars can be continuously pushed to other idle clamping discs, which is convenient for timely replenishment after the grid bars in the welding area are welded, thus achieving the effect of continuous feeding, facilitating continuous welding of the grid bars, and further improving the welding efficiency of the grid bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of a specific embodiment in the present invention.

[0026] Figure 2 It is a top view structural schematic diagram of the mounting rack in a specific embodiment of the present invention.

[0027] Figure 3 It is a schematic diagram of the internal structure of the mounting rack in a specific embodiment of the present invention.

[0028] Figure 4 It is a schematic diagram of the internal structure of the fixed box in a specific embodiment of the present invention.

[0029] Figure 5 It is a schematic diagram of the structure of the fixed box in a specific embodiment of the present invention.

[0030] Figure 6 It is a side view structural schematic diagram of the limit assembly in a specific embodiment of the present invention.

[0031] Figure 7 It is a schematic diagram of the structure of the limit plate in a specific embodiment of the present invention.

[0032] Figure 8 It is an exploded sectional structural schematic diagram of the rotating mechanism in a specific embodiment of the present invention.

[0033] Figure 9 It is a schematic diagram of the structure of the turntable in a specific embodiment of the present invention.

[0034] Figure 10 It is a schematic diagram of the structure of the clamping assembly in a specific embodiment of the present invention.

[0035] Figure 11Schematic cross-sectional structure diagram of the connecting cylinder in a specific embodiment of the present invention.

[0036] Figure 12 Exploded structure diagram of the positioning component in a specific embodiment of the present invention.

[0037] Figure 13 Schematic structure diagram of the positioning ring in a specific embodiment of the present invention.

[0038] Reference numerals:

[0039] 10. Welding mechanism; 11. Sliding frame; 12. First electric slide rail; 13. First sliding seat; 14. Welding robot;

[0040] 20. Sliding mechanism; 21. Mounting frame; 22. Second electric slide rail; 23. Second sliding seat; 24. Blocking frame;

[0041] 30. Mounting mechanism; 31. Mounting seat; 32. Fixed box; 33. Hydraulic cylinder; 34. Motor; 35. Limiting component; 351. Fixed plate; 352. Roller; 353. Mounting column;

[0042] 40. Rotating mechanism; 41. Rotating component; 411. Turntable; 412. Rotating cylinder; 413. First gear; 414. First internal spline groove; 415. Second internal spline groove; 42. Sliding component; 421. Internal spline cylinder; 422. First external spline cylinder; 423. Second external spline cylinder; 424. Mounting plate; 425. External spline shaft;

[0043] 50. Clamping mechanism; 51. Clamping component; 511. Connecting cylinder; 512. Clamping disc; 513. Second gear; 514. Rotating ring; 515. First spring; 52. Positioning component; 521. Positioning shaft; 522. Positioning ring; 523. Limiting block; 524. Limiting groove; 525. Sliding ring; 526. Second spring; 527. Top plate; 53. Limiting plate. Detailed implementation manners

[0044] The embodiments of the present invention are described in detail below, and the examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0045] As Figures 1 to 13As shown in the figure, the grid bar welding device of the present invention includes a welding mechanism 10, a sliding mechanism 20, and two positioning mechanisms. The welding mechanism 10 is located on one side of the sliding mechanism 20, and the other side of the sliding mechanism 20 is used to arrange the external feeding mechanism. The two positioning mechanisms are respectively slidably connected to both sides of the top of the sliding mechanism 20. Both positioning mechanisms include a mounting mechanism 30, a rotating mechanism 40, and a clamping mechanism 50. The mounting mechanism 30 is arranged on the top of the sliding mechanism 20, the rotating mechanism 40 is rotatably connected to the mounting mechanism 30, and the number of the clamping mechanisms 50 is three. The three clamping mechanisms 50 are distributed in an annular array on the rotating mechanism 40 with the axis of the rotating mechanism 40 as the center.

[0046] The un-welded grid bars can be adaptively clamped by the clamping mechanism 50. When welding is required, the rotating mechanism 40 drives the grid bars on the clamping mechanism 50 to rotate to the welding area. At the same time, the clamping mechanism 50 positions and clamps the grid bars to ensure the stability during grid bar welding. Moreover, during the process of welding the grid bars, the feeding operation of the grid bars can continue, enabling the welding mechanism 10 to continuously weld, thus ensuring the welding efficiency of the grid bars.

[0047] As Figure 1 shown in the figure, the welding mechanism 10 includes a sliding frame 11, an electric slide rail 12, and a welding assembly. The electric slide rail 12 is installed on the top of the sliding frame 11, and the number of the welding assemblies is two. The two welding assemblies are respectively slidably connected to both sides of the top of the electric slide rail 12. The welding assembly includes a sliding seat 13 and a welding robot 14. The sliding seat 13 is slidably connected to the top of the electric slide rail 12, and the welding robot 14 is installed on the top of the sliding seat 13.

[0048] As Figures 1 to 3 shown in the figure, the sliding mechanism 20 includes a mounting frame 21, an electric slide rail 22, a sliding seat 23, and a baffle frame 24. The mounting frame 21 is located on one side of the sliding frame 11, and the electric slide rail 22 is installed on the inner wall of the mounting frame 21. The number of the sliding seats 23 is two. The two sliding seats 23 are respectively slidably connected to both sides of the top of the electric slide rail 22, and the two mounting mechanisms 30 are respectively installed on the tops of the two sliding seats 23. The number of the baffle frames 24 is multiple. The multiple baffle frames 24 are all installed on the top of the mounting frame 21 on the side close to the welding robot 14. The baffle frames 24 are inclined and located in the tangential direction of the clamping mechanism 50.

[0049] After the welding of the grid frame rods is completed, the rotating mechanism 40 drives the welded grid frame rods to revolve around the axis of the rotating mechanism 40 through the clamping mechanism 50. When the welded grid frame rods contact the baffle frame 24, due to the blocking of the baffle frame 24, the grid frame rods can be pushed out of the clamping mechanism 50. At this time, the welded grid frame rods are moved out along the baffle frame 24, so that the automatic blanking of the welded grid frame rods can be completed during the process of driving the non-welded grid frame rods to the welding area.

[0050] As Figures 1 to 5 and Figure 7 shown, the installation mechanism 30 includes an installation base 31, a fixed box 32, a hydraulic cylinder 33, a motor 34 and a limiting component 35. The installation base 31 is installed on the top of the sliding seat two 23, the fixed box 32 is installed on the top of the installation base 31, the hydraulic cylinder 33 is installed on the top of one side of the fixed box 32, the motor 34 is installed in the middle of one side of the fixed box 32, and the driving shaft of the motor 34 is connected to the rotating mechanism 40.

[0051] When the motor 34 is started, the motor 34 drives the rotating mechanism 40 to rotate on the fixed box 32. At the same time, the rotating mechanism 40 can drive the grid frame rods to revolve or rotate through the clamping mechanism 50.

[0052] As Figures 3 to 7 shown, the limiting component 35 includes a fixing plate 351, a roller 352 and an installation column 353. The fixing plate 351 is arc-shaped and located on the front side of the rotating mechanism 40. The number of rollers 352 is multiple, and the multiple rollers 352 are evenly distributed on the inner side of the fixing plate 351 along the track of the fixing plate 351. The roller 352 is rotatably connected to the inner wall of the fixing plate 351, and the outer side of the roller 352 is tangent to the inner side of the fixing plate 351. One end of the installation column 353 is installed on one side of the fixed box 32, and the other end of the installation column 353 is installed on one side of the fixing plate 351.

[0053] Through the fixing plate 351 and the multiple rollers 352, the grid frame rods can be limited during the rotation process of the grid frame rods to prevent the grid frame rods from falling off the clamping mechanism 50, thus ensuring the stability of the grid frame rod feeding.

[0054] As Figures 1 to 4 shown, the rotating mechanism 40 includes a rotating component 41 and a sliding component 42. The rotating component 41 is rotatably connected to the fixed box 32, and the sliding component 42 is slidably connected to the inside of the rotating component 41. One end of the motor 34 is connected to the sliding component 42, and the motor 34 can drive the rotating component 41 to rotate on the fixed box 32 through the sliding component 42.

[0055] As Figures 1 to 9As shown, the rotating assembly 41 includes a turntable 411, a rotating cylinder 412, a first gear 413, a first internal spline groove 414, and a second internal spline groove 415. The turntable 411 is rotatably connected to one side of the fixed box 32, and the fixed plate 351 is concentric with the turntable 411. The three clamping mechanisms 50 are arranged in a circular array around the axis of the turntable 411 at one end of the turntable 411. One end of the rotating cylinder 412 is installed at one end of the turntable 411, and the rotating cylinder 412 is located inside the fixed box 32. The first gear 413 is rotatably connected to one end of the rotating cylinder 412, and the second internal spline groove 415 is opened at one end of the first gear 413. The clamping mechanism 50 can be engaged with the first gear 413, and the first internal spline groove 414 is opened at one end of the rotating cylinder 412.

[0056] As Figure 4 and Figure 8 As shown, the sliding assembly 42 includes an internal spline cylinder 421, a first external spline cylinder 422, a second external spline cylinder 423, a mounting plate 424, and an external spline shaft 425. The internal spline cylinder 421 is slidably connected inside the rotating cylinder 412. The first external spline cylinder 422 is installed on the outer side of one end of the internal spline cylinder 421, and the first external spline cylinder 422 is adapted to the first internal spline groove 414. The second external spline cylinder 423 is installed in the middle of the outer side of the internal spline cylinder 421. The second external spline cylinder 423 is adapted to the second internal spline groove 415, and the length of the second external spline cylinder 423 is greater than the length of the first external spline cylinder 422. In the initial state, the first external spline cylinder 422 is located in the first internal spline groove 414, and a part of the second external spline cylinder 423 is located inside the second external spline cylinder 423. One side bottom of the mounting plate 424 is installed on the outer side of the other end of the internal spline cylinder 421, and one side top of the mounting plate 424 is installed on the outer side of the telescopic end of the hydraulic cylinder 33. One end of the external spline shaft 425 is slidably connected inside the internal spline cylinder 421, and the other end of the external spline shaft 425 is rotatably connected to one side of the inner wall of the fixed box 32. The drive shaft of the motor 34 is installed at the other end of the external spline shaft 425.

[0057] The motor 34 can drive the internal spline cylinder 421 to rotate through the external spline shaft 425. The internal spline cylinder 421 can drive the turntable 411 on the rotating cylinder 412 to rotate through the first external spline cylinder 422, so as to drive the three clamping mechanisms 50 to revolve around the axis of the turntable 411.

[0058] When the telescopic end of the hydraulic cylinder 33 extends outwards, the hydraulic cylinder 33 drives the first external spline cylinder 422 and the second external spline cylinder 423 to move through the internal spline cylinder 421 on the mounting plate 424, so that the first external spline cylinder 422 completely moves out of the first internal spline groove 414, and at the same time, the second external spline cylinder 423 completely enters the inside of the second internal spline groove 415. At this time, when the internal spline cylinder 421 rotates, the internal spline cylinder 421 can drive the first gear 413 to rotate alone through the second external spline cylinder 423.

[0059] AsFigure 1 and Figures 3 to 5 As shown in Figures 3 to 5 , the clamping mechanism 50 includes a clamping assembly 51, a positioning assembly 52 and a limiting plate 53. The clamping assembly 51 is slidably connected to one end of the turntable 411, and the clamping assembly 51 can rotate on the turntable 411. The positioning assembly 52 is slidably connected inside the clamping assembly 51 to position the grid bar. The limiting plate 53 is arc-shaped, located outside the clamping assembly 51 and installed at one end of the turntable 411. The limiting plate 53 is arranged close to the center of the turntable 411, the fixing plate 351 is arranged away from the center of the turntable 411, and the radian of the limiting plate 53 is smaller than that of the fixing plate 351.

[0060] As Figures 3 to 5 and Figures 7 to 11 As shown in Figures 7 to 11 , the clamping assembly 51 includes a connecting cylinder 511, a clamping disc 512, a second gear 513, a rotating ring 514 and a first spring 515. The connecting cylinder 511 is slidably connected to one end of the turntable 411, and the connecting cylinder 511 can rotate on the turntable 411. One end of the connecting cylinder 511 penetrates through the turntable 411 and extends into the fixed box 32. The second gear 513 is installed on the outer side of one end of the connecting cylinder 511. The second gear 513 can be meshed with the first gear 413. The rotating ring 514 is rotatably connected to the outer side of the connecting cylinder 511 and close to one end of the second gear 513. The clamping disc 512 is installed at the other end of the connecting cylinder 511. The inner side of the limiting plate 53 is in contact with the outer side of the clamping disc 512, and the limiting plate 53 and the clamping disc 512 are concentrically arranged. An arc surface is provided at the edge position of one end of the clamping disc 512. The first spring 515 is sleeved on the outer side of the connecting cylinder 511 and installed between the turntable 411 and the rotating ring 514 to provide a clamping force for the grid bar.

[0061] The grid bar is pushed between the two clamping discs 512 by an external feeding mechanism, and the conical head on the grid bar is in contact with the arc surface on the clamping disc 512. At this time, under the pushing action of the feeding mechanism, the conical head on the grid bar pushes the clamping disc 512 closer to the turntable 411, and at the same time the first spring 515 is stretched. When the outer side of the grid bar is in contact with the inner side of the limiting plate 53, it stops. At this time, the force of the first spring 515 reset can clamp the grid bar between the two clamping discs 512.

[0062] As Figures 3 to 5 and Figures 10 to 13As shown in the figure, the positioning component 52 includes a positioning shaft 521, a positioning ring 522, a limiting block 523, a limiting groove 524, a sliding ring 525, a second spring 526, and a top plate 527. The positioning shaft 521 is slidably connected to the inside of the connecting cylinder 511. The positioning ring 522 is slidably connected to the outer side of one end of the positioning shaft 521. A groove for accommodating the positioning ring 522 is formed in the middle of one end of the clamping disc 512. There are two limiting blocks 523, and the two limiting blocks 523 are symmetrically installed on the inner side of the positioning ring 522 along the axis of the positioning ring 522. There are two limiting grooves 524, and the two limiting grooves 524 are symmetrically formed on both sides of the positioning shaft 521 along the axis of the positioning ring 522. The limiting block 523 is slidably connected to the limiting groove 524. The sliding ring 525 is installed on the outer side of the positioning shaft 521, and the outer side of the sliding ring 525 is slidably connected to the inner side of the connecting cylinder 511. The second spring 526 is sleeved on the outer side of the positioning shaft 521, and the second spring 526 is installed between the clamping disc 512 and the sliding ring 525. The top plate 527 is installed at the other end of the positioning shaft 521, and the telescopic end of the hydraulic cylinder 33 can push the top plate 527 to move towards the inside of the connecting cylinder 511.

[0063] Working principle: When welding the grid bars, an external feeding mechanism pushes the grid bars between the two clamping discs 512 along the tangent direction of the clamping disc 512, and makes the conical heads on the grid bars contact the arc surfaces on the clamping discs 512. At this time, under the pushing action of the feeding mechanism, the conical heads on the grid bars push the clamping discs 512 towards the turntable 411 through the arc surfaces on the clamping discs 512. When the outer side of the grid bar contacts the inner side of the limiting plate 53, it stops. At this time, the conical heads on the grid bars correspond to the center of the positioning ring 522, and at the same time, the grid bars are clamped between the two clamping discs 512. During the process of the clamping disc 512 moving towards the turntable 411, the clamping disc 512 drives the second gear 513 to move through the connecting cylinder 511, so that the first gear 413 meshes with the second gear 513.

[0064] Then the motor 34 drives the inner spline cylinder 421 to rotate through the external spline shaft 425. The inner spline cylinder 421 drives the turntable 411 on the rotating cylinder 412 to rotate through the first external spline cylinder 422, thereby driving the clamping disc 512 on the turntable 411 to revolve. During the revolution of the clamping disc 512, the grid bars move along the inner side of the fixing plate 351, so that the grid bars are transferred to the upper welding area to complete the feeding of the grid bars. After the grid bars are transferred to the welding area, the limiting plate 53 can support the grid bars to prevent the grid bars from slipping downward and deviating from the positioning ring 522 after moving to the welding area.

[0065] Then, the telescopic end of the hydraulic cylinder 33 extends outward and enters the connecting cylinder 511 to contact the top plate 527. As the telescopic end of the hydraulic cylinder 33 continues to extend, the hydraulic cylinder 33 drives the positioning shaft 521 to move through the top plate 527, so that the positioning shaft 521 extends into the conical head on the grid bar. During the sliding process of the positioning shaft 521, the limit block 523 slides in the limit groove 524. When the limit block 523 contacts the limit groove 524, as the positioning shaft 521 continues to move, the positioning shaft 521 drives the positioning ring 522 to squeeze the conical head on the grid bar through the limit block 523 to clamp the grid bar.

[0066] During the process of the telescopic end of the hydraulic cylinder 33 extending outward, the hydraulic cylinder 33 drives the external spline cylinder one 422 and the external spline cylinder two 423 to move through the internal spline cylinder 421 on the mounting plate 424, so that the external spline cylinder one 422 moves out of the internal spline groove one 414, and at the same time the external spline cylinder two 423 completely enters the inside of the external spline cylinder two 423. Then, the motor 34 drives the gear one 413 to rotate alone through the external spline cylinder two 423 on the internal spline cylinder 421, and the gear one 413 drives the grid bar clamped between the two clamping discs 512 to rotate through the gear two 513, so that the welding robot 14 performs circumferential welding on the grid bar.

[0067] During the welding process, through the external feeding mechanism, grid bars can be replenished to other idle clamping discs 512 to achieve the effect of continuous feeding, so that the welding robot 14 can perform continuous welding to improve the welding efficiency. When the welding of the grid bar is completed, the telescopic end on the hydraulic cylinder 33 resets. At this time, the motor 34 drives the turntable 411 to rotate to transfer the un-welded grid bar to the welding area. During the rotation of the turntable 411, through the blocking of the baffle frame 24, the welded grid bar can be pushed out from between the two clamping discs 512. At this time, the welded grid bar moves out along the baffle frame 24, so that the grid bar can be continuously unloaded.

[0068] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A grid bar welding device, comprising a welding mechanism, a sliding mechanism and two mounting mechanisms, characterized in that A rotating mechanism is rotatably connected to the installation mechanism, and three clamping mechanisms are provided on the rotating mechanism; The rotating mechanism includes a rotating component and a sliding component rotatably connected to the installation mechanism. The rotating component includes a first gear, a turntable rotatably connected to the installation mechanism, a rotating cylinder installed on the turntable, a first internal spline groove opened on the rotating cylinder, and a second internal spline groove opened on the first gear. The rotating cylinder is slidably arranged on the sliding component, and the sliding component can drive the turntable to rotate; The clamping mechanism includes a clamping component and a positioning component elastically slidably connected transversely inside the clamping component. The clamping component includes a clamping disc elastically slidably connected transversely on the turntable, and the clamping disc can rotate on the turntable; The installation mechanism includes a fixed box, a hydraulic cylinder, a motor, and a limiting component. The turntable is rotatably connected to one side of the fixed box. The hydraulic cylinder is installed on the top of the other side of the fixed box, and the motor is installed in the middle of the other side of the fixed box and is connected to the sliding component; The limiting component includes a fixing plate and a plurality of rollers. The fixing plate is arranged on one side of the fixed box. The shape of the fixing plate is arc-shaped. The plurality of rollers are evenly distributed along the track of the fixing plate on the inner side of the fixing plate, and the outer sides of the rollers are tangent to the inner side of the fixing plate; The sliding component includes an internal spline cylinder, a first external spline cylinder, a second external spline cylinder, and an external spline shaft. The internal spline cylinder is slidably connected to the inside of the rotating cylinder. The first external spline cylinder is installed on the outer side of one end of the internal spline cylinder and is adapted to the first internal spline groove. The second external spline cylinder is installed in the middle of the outer side of the internal spline cylinder and is adapted to the second internal spline groove; The positioning component includes a positioning shaft, a positioning ring, a top plate, two limiting blocks, and two limiting grooves. The positioning shaft is elastically slidably connected transversely to the inside of the connecting cylinder. The positioning ring is slidably connected to the outer side of one end of the positioning shaft. The two limiting blocks are respectively installed on both sides inside the positioning ring. The two limiting grooves are respectively opened on both sides of the positioning shaft. The limiting blocks are slidably connected in the limiting grooves. The top plate is installed at the other end of the positioning shaft. A groove for accommodating the positioning ring is opened in the middle of one end of the clamping disc.

2. The grid bar welding device according to claim 1, characterized in that, The sliding mechanism includes an installation frame, a second electric slide rail, two second sliding seats, and a plurality of partition frames. The second electric slide rail is installed on the installation frame. The two second sliding seats are respectively slidably connected to both sides of the top of the second electric slide rail. The plurality of partition frames are all installed on one side of the top of the installation frame.

3. The grid bar welding device according to claim 1, characterized in that, One end of the external spline shaft is slidably connected to the inside of the internal spline cylinder, and the other end of the external spline shaft is rotatably connected to the fixed box and fixed to the motor.

4. The grid bar welding device according to any one of claims 1-3, characterized in that, The clamping mechanism further includes an arc-shaped limiting plate, and the limiting plate is installed on the turntable and located outside the clamping disc.

5. The grid bar welding device according to claim 1, characterized in that, The clamping component further includes a connecting cylinder and a second gear. The connecting cylinder is elastically slidably connected transversely to the turntable. The connecting cylinder can rotate on the turntable. The clamping disc is installed at one end of the connecting cylinder. The second gear is installed at the other end of the connecting cylinder. The first gear can be engaged with the second gear.

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