A welding device for hydraulic cylinders

Abstract

This invention relates to the field of welding equipment technology and discloses a welding device for hydraulic cylinders. The device includes a base plate, with support plates fixedly connected to both ends of the upper surface of the base plate. A moving mechanism is connected between the two support plates. The output end of the moving mechanism is connected to a support and a bracket. A rotating mechanism is connected to the upper ends of the support and bracket. Support components are connected to both parts of the rotating mechanism located on the support and bracket. Several clamping components for holding the cylinder are connected inside the support components. A raising component is connected to the middle of the upper surface of the base plate. A drive mechanism and a conveying component are connected to the upper end of the raising component, and the output end of the drive mechanism is connected to one end of the conveying component. This welding device for hydraulic cylinders, through the cooperation of the conveying component and the separating component, can automatically convey the cylinder to be welded from the placement area to the welding area, and after welding, transfer it to the unloading area, eliminating the need for manual handling and reducing auxiliary time.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, specifically to a welding device for hydraulic cylinders. Background Technology

[0002] Hydraulic cylinders are key actuators that convert hydraulic energy into linear reciprocating mechanical motion (thrust or pull), and are widely used in various industrial equipment such as engineering machinery, metallurgical equipment, and automated production lines. In the manufacturing and repair of hydraulic cylinders, their main structural components (such as cylinder barrels, end caps, flanges, and trunnions) are typically connected by welding. To ensure the strength and sealing of the welds, as well as the overall geometric accuracy of the machine, while improving production efficiency and product consistency, it is essential to utilize specialized welding equipment to complete high-quality assembly welding.

[0003] Currently, common hydraulic cylinder welding devices generally include supports and brackets at both ends, with the support typically integrating a drive motor. During welding, one end of the cylinder to be welded is first inserted into the fixture inside the support and clamped, and then the other end is aligned and fixed in another set of fixtures on the bracket. Subsequently, the motor inside the support drives the cylinder to rotate, and a welding robotic arm located on the side of the cylinder performs automatic welding on the circumferential seam at its end.

[0004] However, in practical applications, the above-mentioned welding device has the following prominent problems:

[0005] 1. Due to the variety of hydraulic cylinder models and the large differences in cylinder outer diameter and length, the two sets of clamps on the support and bracket need to be frequently adjusted to adapt to workpieces of different specifications, which is cumbersome and affects the positioning accuracy.

[0006] 2. For large-sized and heavy cylinders, the manual handling and alignment of the clamps at both ends are labor-intensive and inefficient.

[0007] 3. Two independent fixtures need to be precisely inserted into both ends of the cylinder and coaxially aligned. This process is difficult to achieve quickly and can easily cause assembly deviations, which in turn affect the welding quality.

[0008] 4. After welding is completed, the clamps at both ends must be released before the finished cylinder is removed from the device as a whole. The process is complicated and time-consuming, which is not conducive to automated continuous production. Summary of the Invention

[0009] In view of the shortcomings of the prior art, the present invention provides a welding device for hydraulic cylinders, which can automatically load, align and clamp materials before welding, and can also automatically separate and unload materials after welding.

[0010] To achieve the above objectives, the present invention provides the following technical solution: a welding device for a hydraulic cylinder, comprising a base plate, with support plates fixedly connected to both ends of the upper surface of the base plate, a moving mechanism connected between the two support plates, a support and a bracket connected to the output end of the moving mechanism, a rotating mechanism connected to the upper ends of the support and the bracket, and support components connected to both parts of the rotating mechanism located on the support and the bracket, a plurality of clamping components for clamping the cylinder connected inside the support components, a raising component connected to the middle of the upper surface of the base plate, a driving mechanism and a conveying component connected to the upper end of the raising component, and the output end of the driving mechanism connected to one end of the conveying component, a plurality of equally spaced separating components connected to the surface of the conveying component, the separating components being located between the two support components, and the cylinder being located inside the separating components.

[0011] Furthermore, the rotating mechanism includes a rotary motor, a bearing, and two support rods. The outer wall of the rotary motor is fixedly connected to the side wall of the upper end of the support. The output shaft of the rotary motor is fixedly connected to one end of the first support rod. The outer wall of one end of the second support rod is fixedly connected to the inner ring of the bearing. The outer ring of the bearing is fixedly connected to the inner wall of the bracket. The adjacent ends of the two support rods are respectively connected to two support components.

[0012] Furthermore, the support assembly includes a rotating cylinder and several support blocks. One end of each support block is fixedly connected to the inner wall of the rotating cylinder, and the support blocks are arranged in pairs. The several groups of support blocks are respectively connected to several clamping assemblies, and one end of the outer wall of the rotating cylinder is fixedly connected to a support rod.

[0013] Furthermore, the clamping assembly includes a clamping block, a top block, an inclined block, a V-shaped rod, a thrust spring, and a rotating rod. One end of the inclined block is fixedly connected to the inner wall of the rotating cylinder, and the other end of the inclined block is fixedly connected to one end of the thrust spring. The other end of the thrust spring is fixedly connected to one side of the top block, one end of the top block is fixedly connected to one end of the V-shaped rod, and the other end of the V-shaped rod is fixedly connected to one side of the clamping block. A rubber anti-slip pad is fixedly connected to the other side of the clamping block, and the rubber anti-slip pad faces the cylinder. The middle part of the V-shaped rod is sleeved and fixedly connected to the outer wall of the middle part of the rotating rod. The two ends of the rotating rod are rotatably connected to two support blocks in the same group, respectively. A pressure sensor is installed inside the clamping block.

[0014] Furthermore, the moving mechanism includes a moving motor, a double-acting lead screw, two moving plates, and several sliding rods. The outer wall of the moving motor is fixedly connected to the side wall of one of the support plates. The output shaft of the moving motor is fixedly connected to one end of the double-acting lead screw. The double-acting lead screw and several sliding rods are parallel to each other. The two ends of the double-acting lead screw are rotatably connected to the two support plates, and the two ends of the several sliding rods are fixedly connected to the two support plates. The two moving plates are sleeved on the outside of the double-acting lead screw and several sliding rods. The moving plates are slidably connected to the sliding rods and threadedly connected to the double-acting lead screw. The upper surfaces of the two moving plates are fixedly connected to the lower ends of the support and the bracket, respectively.

[0015] Furthermore, the elevation assembly includes a center plate, two protective covers, and several columns. The columns are divided into two groups, with the upper ends of the two groups of columns fixedly connected to the bottom surfaces of the two protective covers, and the lower ends of the two groups of columns fixedly connected to the upper surface of the center plate. The center plate is sleeved outside the bidirectional lead screw and the slide rod. The center plate is rotatably connected to the bidirectional lead screw and fixedly connected to the slide rod. The conveying assembly is located between the two protective covers.

[0016] Furthermore, the drive mechanism includes a drive motor, a synchronous belt, and two synchronous pulleys. The outer wall of the drive motor is fixedly connected to the upper surface of the center plate, the output shaft of the drive motor is fixedly connected to the first synchronous pulley, the second synchronous pulley is connected to one end of the conveying assembly, and the synchronous belt is sleeved on the outside of the two synchronous pulleys.

[0017] Furthermore, the conveying assembly includes a chain plate, two chains, two drive rods, four sprockets, and several support rollers. The two drive rods are parallel and located at both ends inside the chain plate. The two ends of the two drive rods are rotatably connected to two protective covers, and one end of one drive rod is also fixedly connected to a second synchronous pulley. The four sprockets are arranged in pairs, and the two sets of sprockets are respectively sleeved and fixedly connected to the two ends of the two drive rods. The two sprockets in the same set are located on both sides of the chain plate. The chain meshes with the two sprockets on the same side of the chain plate. Both chains are rotatably connected to the side of the chain plate through connecting rods. The several support rollers are evenly divided into two groups. The two groups of support rollers are respectively sleeved and fixedly connected to the outside of the two drive rods, and both groups of support rollers abut against the inner sidewall of the chain plate. The surface of the chain plate is connected to several separating components.

[0018] Furthermore, the separating component includes two clamping plates, several mounting blocks, and several loop blocks. Several mounting openings are provided through the surface of the chain plate. The mounting blocks and loop blocks are evenly divided into two groups. The two groups of mounting blocks are fixedly connected to the two clamping plates respectively. The two groups of mounting blocks are matched and aligned with the two groups of loop blocks respectively. The aligned mounting blocks are fastened to the loop blocks by nuts after passing through the mounting opening and the center opening of the loop block with screws.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. This welding device for hydraulic cylinders, through the cooperation of the conveying component and the separating component, can automatically convey the cylinder to be welded from the placement area to the welding area, and transfer it to the unloading area after welding is completed, without the need for manual handling, thus reducing auxiliary time;

[0021] 2. This welding device for hydraulic cylinders, by setting a moving mechanism, can drive the support and bracket to move closer or further away synchronously, without the need to manually adjust the clamp spacing, adapting to cylinders of different lengths and shortening changeover time.

[0022] 3. This welding device for hydraulic cylinders uses a clamping assembly that automatically centers and clamps the cylinder when it extends into the rotating drum through the linkage of a V-shaped rod, a thrust spring, and a pressure sensor, ensuring the coaxiality of the cylinder and the welding robot arm and avoiding weld deviation caused by eccentricity.

[0023] 4. This welding device for hydraulic cylinders features a V-shaped rod and thrust spring design in the clamping assembly that can accommodate cylinders within a certain diameter range. Combined with the adjustable installation of the clamping plate in the separating assembly (through the combination of mounting blocks, loop blocks, and chain plate mounting openings), it meets the positioning requirements of cylinders with different outer diameters. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall appearance of the present invention;

[0025] Figure 2 This is a schematic diagram of the overall appearance of the invention from another perspective;

[0026] Figure 3 This is a detailed connection diagram of the base plate, moving mechanism, and center plate of the present invention;

[0027] Figure 4 This is a detailed connection diagram of the components of the present invention, including the elevation assembly, the drive mechanism, and the conveying assembly;

[0028] Figure 5 For the present invention Figure 4 Explosion diagrams of various components;

[0029] Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle;

[0030] Figure 7 This is an exploded view of the components in the partition assembly of the present invention;

[0031] Figure 8 This is a detailed connection diagram of the support, the supporting component, and the clamping component of the present invention;

[0032] Figure 9 This is an exploded view of the support component and clamping component of the present invention.

[0033] In the diagram: 1. Base plate; 2. Moving plate; 3. Support; 4. Rotary motor; 5. Support plate; 6. Moving motor; 7. Double-acting lead screw; 8. Slide rod; 9. Center plate; 10. Bracket; 11. Rotary drum; 12. Drive motor; 13. Synchronous pulley; 14. Synchronous belt; 15. Column; 16. Protective cover; 17. Chain plate; 18. Clamping plate; 19. Mounting block; 20. Mounting port; 21. Clamping block; 22. Support roller; 23. Sprocket; 24. Chain; 25. U-shaped block; 26. Top block; 27. Inclined block; 28. V-shaped rod; 29. ​​Support block; 30. Thrust spring; 31. Rotating rod; 32. Support rod; 33. Bearing; 34. Transmission rod. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0035] Please see Figures 1-9 A welding device for hydraulic cylinders includes a base plate 1. Support plates 5 are fixedly connected to both ends of the upper surface of the base plate 1. A moving mechanism is connected between the two support plates 5. The output end of the moving mechanism is connected to a support 3 and a bracket 10. The upper ends of the support 3 and the bracket 10 are connected to a rotating mechanism. Support components are connected to both parts of the rotating mechanism located on the support 3 and the bracket 10. Several clamping components for clamping the cylinder are connected inside the support components. A raising component is connected to the middle of the upper surface of the base plate 1. A driving mechanism and a conveying component are connected to the upper end of the raising component. The output end of the driving mechanism is connected to one end of the conveying component. Several equally spaced partition components are connected to the surface of the conveying component. The partition components are located between the two support components, and the cylinder is located inside the partition components.

[0036] As a preferred embodiment of the present invention, the rotating mechanism includes a rotary motor 4, a bearing 33, and two support rods 32. The outer wall of the rotary motor 4 is fixedly connected to the side wall of the upper end of the support 3. The output shaft of the rotary motor 4 is fixedly connected to one end of the first support rod 32. The outer wall of one end of the second support rod 32 is fixedly connected to the inner ring of the bearing 33. The outer ring of the bearing 33 is fixedly connected to the inner wall of the bracket 10. The adjacent ends of the two support rods 32 are respectively connected to two support components.

[0037] More specifically, by setting up a rotating mechanism, when an external welding robot arm (which is existing technology and will not be described in detail here) is welding the clamped cylinder, it can drive the cylinder to rotate, thereby enabling circumferential welding to be performed on the outside of the cylinder in conjunction with the external welding robot arm.

[0038] As a preferred embodiment of the present invention, the support assembly includes a rotating cylinder 11 and a plurality of support blocks 29. One end of each of the plurality of support blocks 29 is fixedly connected to the inner wall of the rotating cylinder 11, and the plurality of support blocks 29 are in pairs. The plurality of support blocks 29 are respectively connected to a plurality of clamping assemblies. One end of the outer wall of the rotating cylinder 11 is fixedly connected to a support rod 32.

[0039] More specifically, by setting up support components, several clamping components can be supported, enabling the clamping components to stably clamp the cylinder to be welded. In addition, the power of the rotating mechanism can be applied to the clamped cylinder through the support components, causing the cylinder to rotate.

[0040] As a preferred embodiment of the present invention, the clamping assembly includes a clamping block 21, a top block 26, an inclined block 27, a V-shaped rod 28, a thrust spring 30, and a rotating rod 31. One end of the inclined block 27 is fixedly connected to the inner wall of the rotating cylinder 11, and the other end of the inclined block 27 is fixedly connected to one end of the thrust spring 30. The other end of the thrust spring 30 is fixedly connected to one side of the top block 26. One end of the top block 26 is fixedly connected to one end of the V-shaped rod 28, and the other end of the V-shaped rod 28 is fixedly connected to one side of the clamping block 21. A rubber anti-slip pad is fixedly connected to the other side of the clamping block 21, and the rubber anti-slip pad faces the cylinder. The middle part of the V-shaped rod 28 is sleeved and fixedly connected to the outer wall of the middle part of the rotating rod 31. The two ends of the rotating rod 31 are rotatably connected to two support blocks 29 in the same group, respectively. A pressure sensor is provided inside the clamping block 21.

[0041] More specifically, by setting up clamping components, the cylinder to be welded can be clamped, thereby ensuring the welding quality when the external welding robot arm welds it later.

[0042] As a preferred embodiment of the present invention, the moving mechanism includes a moving motor 6, a bidirectional lead screw 7, two moving plates 2, and a plurality of sliding rods 8. The outer wall of the moving motor 6 is fixedly connected to the side wall of one of the support plates 5. The output shaft of the moving motor 6 is fixedly connected to one end of the bidirectional lead screw 7. The bidirectional lead screw 7 and the plurality of sliding rods 8 are parallel to each other. The two ends of the bidirectional lead screw 7 are rotatably connected to the two support plates 5 respectively. The two ends of the plurality of sliding rods 8 are fixedly connected to the two support plates 5 respectively. The two moving plates 2 are sleeved on the outside of the bidirectional lead screw 7 and the plurality of sliding rods 8. The moving plates 2 are slidably connected to the sliding rods 8. The moving plates 2 are threadedly connected to the bidirectional lead screw 7. The upper surfaces of the two moving plates 2 are fixedly connected to the lower ends of the support 3 and the bracket 10 respectively.

[0043] More specifically, since the two ends of the cylinder to be welded need to be inserted into the two support components respectively and can be clamped by the clamping components in the two support components, by setting a moving mechanism, the support 3 and the bracket 10 can be moved in opposite directions to pull apart the distance between them before welding.

[0044] When it is necessary to clamp the cylinder, as the support 3 and bracket 10 approach each other, the cylinder can be gradually placed into the two support components. At the same time as it is placed into the support components, the cylinder can be automatically clamped by the clamping components.

[0045] As a preferred embodiment of the present invention, the elevation assembly includes a central plate 9, two protective covers 16, and several columns 15. The columns 15 are divided into two groups, the upper ends of the two groups of columns 15 are fixedly connected to the bottom surfaces of the two protective covers 16, and the lower ends of the two groups of columns 15 are fixedly connected to the upper surface of the central plate 9. The central plate 9 is sleeved outside the bidirectional lead screw 7 and the slide rod 8. The central plate 9 is rotatably connected to the bidirectional lead screw 7 and fixedly connected to the slide rod 8. The conveying assembly is located between the two protective covers 16.

[0046] More specifically, by setting up the shim assembly, support can be provided for the drive mechanism and the conveying assembly, while preventing the drive mechanism and the conveying assembly from colliding with the moving mechanism on the base plate 1.

[0047] As a preferred embodiment of the present invention, the drive mechanism includes a drive motor 12, a synchronous belt 14 and two synchronous pulleys 13. The outer wall of the drive motor 12 is fixedly connected to the upper surface of the center plate 9. The output shaft of the drive motor 12 is fixedly connected to the first synchronous pulley 13. The second synchronous pulley 13 is connected to one end of the conveying assembly. The synchronous belt 14 is sleeved on the outside of the two synchronous pulleys 13.

[0048] More specifically, by setting up a drive mechanism, the displacement of the conveying components can be controlled to achieve subsequent purposes.

[0049] As a preferred embodiment of the present invention, the conveying assembly includes a chain plate 17, two chains 24, two drive rods 34, four sprockets 23, and several support rollers 22. The two drive rods 34 are parallel and located at both ends inside the chain plate 17. The two ends of the two drive rods 34 are rotatably connected to two protective covers 16, and one end of one drive rod 34 is also fixedly connected to a second synchronous wheel 13. The four sprockets 23 are arranged in pairs, and the two sets of sprockets 23 are respectively sleeved and fixedly connected to the two ends of the two drive rods 34. The two sprockets 23 in the same set are located on both sides of the chain plate 17. The chains 24 mesh with the two sprockets 23 on the same side of the chain plate 17. Both chains 24 are rotatably connected to the side of the chain plate 17 through connecting rods. The several support rollers 22 are evenly divided into two groups. The two groups of support rollers 22 are respectively sleeved and fixedly connected to the outside of the two drive rods 34, and both groups of support rollers 22 abut against the inner sidewall of the chain plate 17. The surface of the chain plate 17 is connected to several partition components.

[0050] More specifically, by setting up a conveying component, the cylinder to be welded located on the conveying component can be automatically moved, moving the cylinder from the placement area to the welding area, and then moving the welded cylinder from the welding area to the unloading area, thus realizing automatic loading and unloading.

[0051] As a preferred embodiment of the present invention, the separating component includes two clamping plates 18, a plurality of mounting blocks 19 and a plurality of loop blocks 25. The surface of the chain plate 17 is provided with a plurality of mounting openings 20. The plurality of mounting blocks 19 and the plurality of loop blocks 25 are evenly divided into two groups. The two groups of mounting blocks 19 are fixedly connected to the two clamping plates 18 respectively. The two groups of mounting blocks 19 are matched and aligned with the two groups of loop blocks 25 respectively. After the aligned mounting blocks 19 pass through the mounting openings 20 and the center openings of the loop blocks 25 with screws, they are fastened to the loop blocks 25 with nuts.

[0052] More specifically, by setting up a partition component, the cylinder to be welded can be confined to a region so that when the cylinder is moved to the welding area, both ends of the cylinder can be within the clamping range of several clamping components of the support component.

[0053] like Figures 1 to 9 As shown, the welding device for hydraulic cylinders in this invention can be used according to the following steps (it should be specifically noted that, with...) Figure 2 For example, the area between the two clamping plates 18 on the left side of the chain plate 17 is the placement area, the area between the two clamping plates 18 in the middle of the chain plate 17 is the welding area, and the area between the two clamping plates 18 on the right side of the chain plate 17 is the unloading area.

[0054] First, the worker manually (or using a crane or other lifting and handling equipment) places the first cylinder to be welded between the two clamping plates 18 in the placement area. At this time, because the length of the cylinder is wider than the total width of the chain plate 17 and the protective cover 16 (e.g., Figure 1 and Figure 2 As shown), and because the cylinder is blocked by two clamping plates 18 on both sides, the cylinder can be stably mounted on the chain plate 17 and the protective cover 16.

[0055] Then the drive motor 12 is started. The output shaft of the drive motor 12 drives the first synchronous pulley 13 connected to it to rotate. Then the first synchronous pulley 13 drives the second synchronous pulley 13 to rotate through the synchronous belt 14. The rotation of the second synchronous pulley 13 drives the transmission rod 34 connected to it to rotate. Then the two sprockets 23 connected to both ends of the transmission rod 34 can rotate simultaneously. Then the other two sprockets 23 are driven to rotate together through the two chains 24.

[0056] When the chain 24 rotates and moves, because the chain 24 is rotatably connected to the chain plate 17 through the connecting rod (which can be understood as the roller shaft inside the roller chain), the chain plate 17 will move along with it. At this time, the cylinder located on the upper surface of the chain plate 17 and inside the two clamping plates 18 can gradually move from the placement area to the welding area (this distance can be set in advance by the PLC, for example, by calculating how long the drive motor 12 has been running, and the position of the cylinder when the chain plate 17 stops moving).

[0057] As the cylinder moves to the welding area (at this time, the second cylinder to be welded is placed in the clamp 18 of the new placement area), the cylinder is still resting on the upper surface of the chain plate 17, but the two ends of the cylinder are facing the two rotating cylinders 11 respectively (but located at the center point of the two rotating cylinders 11 facing down). At this time, the moving motor 6 is started, and the output shaft of the moving motor 6 drives the bidirectional lead screw 7 to rotate. After the bidirectional lead screw 7 rotates, it can cooperate with the slide rod 8 to move the two moving plates 2.

[0058] When the movable plate 2 is displaced, the support 3 and the bracket 10 can be moved from both sides of the base plate 1 toward the middle at the same time. At this time, the two rotating cylinders 11 connected to the adjacent side of the support 3 and the bracket 10 can move toward the middle at the same time. Then the two rotating cylinders 11 are fitted around the outside of the cylinder end. Then the rotating cylinders 11 continue to move closer. At this time, the end of the cylinder abuts against one or more top blocks 26 inside the rotating cylinder 11 on the side away from the support rod 32.

[0059] As it gets closer, the cylinder applies a compressive force to the top block 26. At this time, the top block 26 can rotate towards the side of the support rod 32 through the rotating rod 31 in the middle of the V-shaped rod 28 and the support block 29. While rotating, the top block 26 will also compress the thrust spring 30. As the V-shaped rod 28 rotates, the end of the V-shaped rod 28 away from the top block 26 can press down towards the center point of the rotating cylinder 11 with the clamping block 21.

[0060] Because multiple clamping blocks 21 act simultaneously, the cylinder can be slowly lifted. During the clamping of the cylinder, the pressure sensor inside the clamping block 21 monitors the pressure in real time. When the pressure sensor inside all the clamping blocks 21 detects the same value (or within a set range), it means that the cylinder has been clamped by several clamping blocks 21. At this time, the moving motor 6 is automatically turned off.

[0061] After the cylinder is clamped, the external welding robotic arm and rotary motor 4 are turned on. The output shaft of the rotary motor 4 rotates the support rod 32 connected to it. Since the cylinder has been clamped by the clamping components in the two rotating cylinders 11, as the rotating cylinder 11 connected to the support 3 rotates, the cylinder will also rotate the rotating cylinder 11 on the other end bracket 10.

[0062] During the rotation of the cylinder, the cylinder can be welded in the conventional way due to the external welding robot arm. After the welding is completed, the external welding robot arm and the rotary motor 4 are turned off at the same time, and then the moving motor 6 is started again. The moving motor 6 then moves the support 3 and the bracket 10 towards both ends of the base plate 1.

[0063] As the distance between the support 3 and the bracket 10 gradually increases, the components originally clamped by the two rotating drums 11 will gradually loosen. At this time, the cylinder that was originally clamped will gradually fall onto the chain plate 17 due to gravity. Then, when the support 3 and the bracket 10 move to the end of the bottom plate 1, the moving motor 6 is turned off and the drive motor 12 is started.

[0064] At this point, the drive motor 12 can rotate the chain plate 17 again, and then the welded cylinder can be moved from the waiting area to the unloading area. The second cylinder in the new placement area is then moved to the waiting area. The above steps are repeated. After the welding of the second cylinder is completed, during the process of the second cylinder moving from the waiting area to the unloading area, the first cylinder previously located in the unloading area moves with the chain plate 17 to face downwards. At this time, the first chain plate 17 can automatically slide down.

[0065] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding device for hydraulic cylinders, characterized in that: Includes a base plate (1), with support plates (5) fixedly connected to both ends of the upper surface of the base plate (1), a moving mechanism connected between the two support plates (5), a support (3) and a bracket (10) connected to the output end of the moving mechanism, a rotating mechanism connected to the upper ends of the support (3) and the bracket (10), and a support component connected to both parts of the rotating mechanism on the support (3) and the bracket (10), and a number of clamping components for clamping the cylinder connected inside the support component, a raising component connected to the middle of the upper surface of the base plate (1), a driving mechanism and a conveying component connected to the upper end of the raising component, and the output end of the driving mechanism connected to one end of the conveying component, and a number of equally spaced partition components connected to the surface of the conveying component, the partition components being located between the two support components, and the cylinder being located inside the partition components; The support assembly includes a rotating cylinder (11) and several support blocks (29). The clamping assembly includes a clamping block (21), a top block (26), an inclined block (27), a V-shaped rod (28), a thrust spring (30), and a rotating rod (31). One end of the inclined block (27) is fixedly connected to the inner wall of the rotating cylinder (11), and the other end of the inclined block (27) is fixedly connected to one end of the thrust spring (30). The other end of the thrust spring (30) is fixedly connected to one side of the top block (26). 6) One end is fixedly connected to one end of the V-shaped rod (28), the other end of the V-shaped rod (28) is fixedly connected to one side of the clamping block (21), the other side of the clamping block (21) is fixedly connected to a rubber anti-slip pad, and the rubber anti-slip pad faces the cylinder. The middle part of the V-shaped rod (28) is sleeved and fixedly connected to the outer wall of the middle part of the rotating rod (31). The two ends of the rotating rod (31) are respectively rotatably connected to two support blocks (29) in the same group. A pressure sensor is provided inside the clamping block (21). The elevation assembly includes a center plate (9), two protective covers (16), and several columns (15). The drive mechanism includes a drive motor (12), a synchronous belt (14), and two synchronous pulleys (13). The conveying assembly includes a chain plate (17), two chains (24), two drive rods (34), four sprockets (23), and several support rollers (22). The two drive rods (34) are parallel and located at both ends inside the chain plate (17). The two ends of the two drive rods (34) are rotatably connected to the two protective covers (16), and one end of one drive rod (34) is also fixedly connected to the second synchronous pulley (13). The sprockets (23) are in pairs, and the two sets of sprockets (23) are respectively sleeved and fixedly connected to the two ends of the two transmission rods (34). The two sprockets (23) in the same group are respectively located on both sides of the chain plate (17). The chain (24) meshes with the two sprockets (23) on the same side of the chain plate (17). The two chains (24) are rotatably connected to the side of the chain plate (17) through connecting rods. The support rollers (22) are divided into two groups. The two groups of support rollers (22) are respectively sleeved and fixedly connected to the outside of the two transmission rods (34). The two groups of support rollers (22) abut against the inner side wall of the chain plate (17). The surface of the chain plate (17) is connected to several partition components.

2. The welding device for a hydraulic cylinder according to claim 1, characterized in that: The rotating mechanism includes a rotary motor (4), a bearing (33), and two support rods (32). The outer wall of the rotary motor (4) is fixedly connected to the side wall of the upper end of the support (3). The output shaft of the rotary motor (4) is fixedly connected to one end of the first support rod (32). The outer wall of one end of the second support rod (32) is fixedly connected to the inner ring of the bearing (33). The outer ring of the bearing (33) is fixedly connected to the inner wall of the bracket (10). The adjacent ends of the two support rods (32) are respectively connected to two support components.

3. The welding device for a hydraulic cylinder according to claim 2, characterized in that: One end of each of the support blocks (29) is fixedly connected to the inner wall of the rotating cylinder (11), and the support blocks (29) are in pairs. The support blocks (29) are respectively connected to a number of clamping components. One end of the outer wall of the rotating cylinder (11) is fixedly connected to the support rod (32).

4. The welding device for a hydraulic cylinder according to claim 3, characterized in that: The moving mechanism includes a moving motor (6), a bidirectional lead screw (7), two moving plates (2) and several sliding rods (8). The outer wall of the moving motor (6) is fixedly connected to the side wall of one of the support plates (5). The output shaft of the moving motor (6) is fixedly connected to one end of the bidirectional lead screw (7). The bidirectional lead screw (7) and several sliding rods (8) are parallel to each other. The two ends of the bidirectional lead screw (7) are rotatably connected to the two support plates (5) respectively. The two ends of several sliding rods (8) are fixedly connected to the two support plates (5) respectively. The two moving plates (2) are sleeved on the outside of the bidirectional lead screw (7) and several sliding rods (8). The moving plates (2) are slidably connected to the sliding rods (8). The moving plates (2) are threadedly connected to the bidirectional lead screw (7). The upper surfaces of the two moving plates (2) are fixedly connected to the lower ends of the support (3) and the bracket (10) respectively.

5. A welding device for a hydraulic cylinder according to claim 4, characterized in that: The columns (15) are divided into two groups. The upper ends of the two groups of columns (15) are fixedly connected to the bottom surfaces of the two protective covers (16) respectively. The lower ends of the two groups of columns (15) are fixedly connected to the upper surface of the center plate (9). The center plate (9) is sleeved on the outside of the bidirectional lead screw (7) and the slide rod (8). The center plate (9) is rotatably connected to the bidirectional lead screw (7). The center plate (9) is fixedly connected to the slide rod (8). The conveying assembly is located between the two protective covers (16).

6. A welding device for a hydraulic cylinder according to claim 5, characterized in that: The outer wall of the drive motor (12) is fixedly connected to the upper surface of the center plate (9). The output shaft of the drive motor (12) is fixedly connected to the first synchronous pulley (13). The second synchronous pulley (13) is connected to one end of the conveying assembly. The synchronous belt (14) is sleeved on the outside of the two synchronous pulleys (13).

7. A welding device for a hydraulic cylinder according to claim 6, characterized in that: The separating component includes two clamping plates (18), several mounting blocks (19) and several loop blocks (25). Several mounting holes (20) are opened through the surface of the chain plate (17). The mounting blocks (19) and the loop blocks (25) are evenly divided into two groups. The two groups of mounting blocks (19) are fixedly connected to the two clamping plates (18) respectively. The two groups of mounting blocks (19) are matched and aligned with the two groups of loop blocks (25) respectively. After the aligned mounting blocks (19) pass through the mounting holes (20) and the center opening of the loop blocks (25) through the screw, they are fastened to the loop blocks (25) by nuts.

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