A kind of welding equipment for oil cylinder shell of aerial vehicle

Abstract

This utility model relates to the field of hydraulic cylinder housing processing technology, and discloses a welding device for hydraulic cylinder housing of a ladder truck. It includes a base plate, with two symmetrical telescopic rods fixedly connected to the upper surface of the base plate. A top plate is fixedly connected to the top ends of the two telescopic rods. Rotary disks are rotatably connected to the lower surface of the top plate and the upper surface of the base plate via bearings. Two symmetrical fixing blocks are fixedly connected to opposite sides of the two rotating disks. Two symmetrical sliding rods are fixedly connected between the two fixing blocks. Two symmetrical sliders are slidably connected to the two sliding rods. A driving assembly is provided between the two fixing blocks to enable the two sliders to move synchronously relative to each other. This utility model uses clamping blocks one and two to fix the cylinder barrel and cylinder bottom respectively, ensuring both are stably fixed and that their central axes are on the same central axis, effectively improving the welding accuracy.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder housing processing technology, and more specifically to a welding equipment for hydraulic cylinder housing of a ladder truck. Background Technology

[0002] As a crucial piece of equipment in the field of engineering machinery, the performance of the hydraulic cylinders in aerial work platforms directly determines the overall stability and safety of the vehicle. The cylinder housing includes components such as the cylinder barrel, cylinder bottom, and flanges. Welding is required when connecting the cylinder barrel and cylinder bottom. As the core pressure-bearing structure of the hydraulic cylinder, it must possess high strength, high sealing performance, and fatigue resistance. The welding quality directly affects the lifespan and reliability of the cylinder.

[0003] A search revealed Chinese patent CN222243281U, which discloses a welding mechanism for hydraulic cylinders. This device uses a guide groove on a positioning rod and a guide wheel in an adjusting groove. The guide wheel and guide groove work together to drive the adjusting sleeve to move up and down, and the locking rod and locking groove work together to lock it, ensuring the smooth sliding of the adjusting sleeve. It can also conveniently lock the adjusting sleeve after the height is adjusted. It is stable and practical. When welding the cylinder barrel and cylinder bottom, it is necessary to ensure that their contact surfaces are on the same central axis. This device can only fix one part, and the other part needs to be manually supported, making it difficult to ensure that the two are on the same central axis. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a welding equipment for the cylinder shell of a climbing vehicle to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a welding device for the outer shell of a hydraulic cylinder of an aerial work platform, comprising a base plate, two symmetrical telescopic rods fixedly connected to the upper surface of the base plate, a top plate fixedly connected to the top ends of the two telescopic rods, a rotating disk rotatably connected to the lower surface of the top plate and the upper surface of the base plate via bearings, two symmetrical fixed blocks fixedly connected to opposite sides of the two rotating disks, two symmetrical sliding rods fixedly connected between the two fixed blocks, two symmetrical sliders slidably connected to the two sliding rods, a driving assembly for synchronous relative movement of the two sliders provided between the two fixed blocks, vertical plates fixedly connected to opposite sides of the two lower sliders and the two upper sliders, clamping blocks one for clamping the cylinder bottom fixedly connected to opposite sides of the two lower vertical plates, clamping blocks two for clamping the cylinder barrel fixedly connected to opposite sides of the two upper vertical plates, a robotic arm provided on the upper surface of the base plate, and a welding head provided at the end of the robotic arm.

[0006] As a further embodiment of this utility model, the drive assembly includes a bidirectional lead screw rotatably connected between two fixed blocks, and the bidirectional lead screw passes through two sliders and is threadedly connected to them. One side of one of the fixed blocks is fixedly connected to a drive motor that causes the bidirectional lead screw to rotate forward and backward along the axial direction.

[0007] As a further embodiment of this utility model, the other end of the bidirectional lead screw passes through one side of the fixing block and is fixedly connected to a disc. The outer circumference of the disc is provided with a plurality of insertion holes arranged in a ring array. An electromagnetic pin that cooperates with the insertion holes is fixedly connected to one side of the fixing block.

[0008] As a further embodiment of this utility model, a V-shaped groove is provided on one side of the clamping block one and one side of the clamping block two, and a shelf is fixedly connected to one side of the V-shaped groove on the clamping block one.

[0009] As a further embodiment of this utility model, there are at least two clamping blocks on the same side, and the two clamping blocks located at the top are fixedly connected to a stop block on one side of the V-shaped groove.

[0010] As a further embodiment of this utility model, multiple electric push rods are fixedly connected between the upper surface of the base plate and the lower surface of the top plate, and a second drive motor for rotating the upper rotating disk is fixedly connected to the upper surface of the top plate.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. This utility model uses clamping block one and clamping block two to fix the cylinder barrel and cylinder bottom respectively, ensuring that the two are fixed stably and that their central axes are on the same central axis, effectively improving the welding accuracy.

[0013] 2. This utility model, through the provision of two driving components to clamp the first clamping block and the second clamping block respectively, can stably clamp cylinders and cylinder bottoms of different models, thus improving the adaptability of the device.

[0014] 3. This utility model, through the synergistic effect of a bottom platform and a top stop, positions the cylinder bottom and cylinder barrel, enabling high-precision positioning and efficient clamping for welding the cylinder shell. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front three-dimensional structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the rear three-dimensional structure of this utility model.

[0017] Figure 3 This is an enlarged schematic diagram of the bottom structure of this utility model.

[0018] Figure 4 This is a magnified top view of the present invention.

[0019] Figure 5 This is an enlarged structural diagram of the clamping block 2 of this utility model.

[0020] Figure 6 This utility model Figure 3 A magnified structural diagram of part A.

[0021] The attached diagram is labeled as follows: 1. Base plate; 2. Telescopic rod; 3. Top plate; 4. Multi-section electric push rod; 5. Rotating disk; 6. Fixed block; 7. Slide rod; 8. Slider; 9. Vertical plate; 10. Clamping block one; 11. V-groove; 12. Storage platform; 13. Clamping block two; 14. Stop block; 15. Bidirectional lead screw; 16. Drive motor one; 17. Disc; 18. Socket; 19. Electromagnetic pin; 20. Drive motor two. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. This utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Reference Figures 1-6This utility model provides a welding device for the outer shell of a hydraulic cylinder of an aerial work platform, including a base plate 1. Two symmetrical telescopic rods 2 are bolted to the upper surface of the base plate 1. A top plate 3 is bolted to the top ends of the two telescopic rods 2. A rotating disk 5 is rotatably connected to the lower surface of the top plate 3 and the upper surface of the base plate 1 via bearings. Two symmetrical fixing blocks 6 are bolted to the opposite sides of the two rotating disks 5. Two symmetrical sliding rods 7 are bolted between the two fixing blocks 6. Two symmetrical sliders 8 are slidably connected to the two sliding rods 7. A driving assembly is provided between the two fixing blocks 6 to make the two sliders 8 move synchronously relative to each other. The two driving assemblies respectively control clamping blocks 10 and 13, respectively, to handle different models of cylinders. Both the cylinder and the cylinder bottom can be stably clamped, improving the adaptability of the device. Vertical plates 9 are bolted to the opposite sides of the two lower sliders 8 and the two upper sliders 8. Clamping blocks 10 for clamping the cylinder bottom are bolted to the opposite sides of the two lower vertical plates 9, and clamping blocks 2 13 for clamping the cylinder are bolted to the opposite sides of the two upper vertical plates 9. A robotic arm is mounted on the upper surface of the base plate 1, with a welding head at its end. V-grooves 11 are formed on one side of clamping block 10 and one side of clamping block 2 13. A platform 12 is bolted to one side of the V-groove 11 on clamping block 10, allowing the cylinder bottom to be placed on the platform 10. 2. Then, the drive motor 16 below is started to drive the double-acting screw 15 to rotate. During the rotation of the double-acting screw 15, the two sliders 8 will move closer to each other. As the two sliders 8 move, the vertical plate 9 on them will drive the clamping blocks 10 to move closer to each other until the V-grooves 11 on the two clamping blocks 10 tightly clamp and fix the outer circumference of the cylinder bottom. The clamping blocks 10 and 23 are used to fix the cylinder barrel and the cylinder bottom respectively, ensuring that the two are fixed stably and that their central axes are on the same central axis, which effectively improves the welding accuracy. There are at least two clamping blocks 23 on the same side. The two clamping blocks 23 on the upper side are fixed to the stop block 14 by bolts on one side of the V-groove 11. After fixing, place the cylinder between the two sets of clamping blocks 13, with the top of the cylinder abutting against the lower surface of the stop block 14 on the V-groove 11 of the upper clamping block 13. After abutting, start the upper drive motor 16 to drive the bidirectional lead screw 15 to rotate. During the rotation of the bidirectional lead screw 15, it will drive the two sliders 8 to move closer to each other. As the two sliders 8 move, they will drive the clamping blocks 13 to move closer to each other through the vertical plate 9 on them, until the V-groove 11 on the two sets of clamping blocks 13 tightly clamps and fixes the outer circumference of the cylinder. The upper surface of the bottom plate 1 and the lower surface of the top plate 3 are fixedly connected by bolts to multiple electric push rods 4. The upper surface of the top plate 3 is fixedly connected by bolts to the drive motor 20 that rotates the upper rotating disk 5.After the cylinder barrel and cylinder bottom are fixed, the multi-section electric push rod 4 is activated to retract. During the retraction of the multi-section electric push rod 4, the cylinder barrel moves downward until its bottom end contacts the upper surface of the cylinder bottom. Then, the welding head is used to weld the edge where the cylinder bottom and cylinder barrel meet. At the same time as welding, the drive motor 20 is activated to rotate the top rotating disk 5, which in turn rotates the cylinder barrel and cylinder bottom, performing rotational welding on the contact surface edge.

[0024] In this utility model, the driving assembly includes a bidirectional lead screw 15 rotatably connected between two fixed blocks 6, and the bidirectional lead screw 15 passes through two sliders 8 and is threadedly connected to them. One side of one of the fixed blocks 6 is fixedly connected to a drive motor 16 that causes the bidirectional lead screw 15 to rotate forward and backward along the axial direction. The other end of the bidirectional lead screw 15 passes through one side of the fixed block 6 and is fixedly connected to a disc 17 by bolts. The outer circumference of the disc 17 is provided with a plurality of insertion holes 18 arranged in a ring array. One side of the fixed block 6 is fixedly connected to an electromagnetic pin 19 that cooperates with the insertion holes 18 by bolts. The electromagnetic pin 19 is model LY01. Before the drive motor 16 is started to drive the bidirectional lead screw 15 to rotate, the electromagnetic pin 19 is started first to retract its locking tongue and disengage from the insertion hole 18. After the rotation is completed, the electromagnetic pin 19 is restarted to make its locking tongue re-insert into the corresponding insertion hole 18.

[0025] It should be noted that the multi-section electric push rod 4, drive motor 16, robotic arm and drive motor 20 are all existing technologies. Those skilled in the art can set them according to actual needs, and they will not be described in detail here.

[0026] The use of this utility model involves the following steps:

[0027] S1: When welding the cylinder barrel and cylinder bottom, first place the cylinder bottom on the platform 12 on the two clamping blocks 10, then start the drive motor 16 below to drive the double-acting screw 15 to rotate. During the rotation of the double-acting screw 15, it will drive the two sliders 8 to move closer to each other. While the two sliders 8 are moving, they will drive the clamping blocks 10 to move closer to each other through the vertical plate 9 on them, until the V-groove 11 on the two clamping blocks 10 tightly clamps and fixes the outer circumference of the cylinder bottom.

[0028] S2: After the cylinder bottom is fixed, place the cylinder between the two sets of clamping blocks 13, and the top of the cylinder abuts against the lower surface of the stop block 14 on the V-groove 11 of the upper clamping block 13. After abutting, start the upper drive motor 16 to drive the bidirectional lead screw 15 to rotate. During the rotation of the bidirectional lead screw 15, it will drive the two sliders 8 to move closer to each other. While the two sliders 8 are moving, they will drive the clamping blocks 13 to move closer to each other through the vertical plate 9 on them, until the V-groove 11 on the two sets of clamping blocks 13 tightly clamps and fixes the outer circumference of the cylinder.

[0029] S3: After the cylinder barrel and cylinder bottom are fixed, the multi-section electric push rod 4 is started to retract. During the retraction of the multi-section electric push rod 4, the cylinder barrel will be moved downward until its bottom end contacts the upper surface of the cylinder bottom. Then, the edge of the contact between the cylinder bottom and the cylinder barrel can be welded by the welding head. At the same time as welding, the drive motor 20 is started to drive the top rotating disk 5 to rotate, which in turn drives the cylinder barrel and cylinder bottom to rotate and weld the edge of the contact surface.

[0030] S4: Before starting the drive motor 16 to rotate the bidirectional lead screw 15, first start the electromagnetic latch 19 to retract its locking tongue and disengage it from the socket 18. After the rotation is completed, restart the electromagnetic latch 19 to re-insert its locking tongue into the corresponding socket 18.

[0031] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0032] The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs.

[0033] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. A welding device for the outer shell of a hydraulic cylinder of an aerial work platform, comprising a base plate (1), characterized in that: Two symmetrical telescopic rods (2) are fixedly connected to the upper surface of the base plate (1). A top plate (3) is fixedly connected to the top of the two telescopic rods (2). A rotating disk (5) is rotatably connected to the lower surface of the top plate (3) and the upper surface of the base plate (1) via bearings. Two symmetrical fixed blocks (6) are fixedly connected to the opposite sides of the two rotating disks (5). Two symmetrical sliding rods (7) are fixedly connected between the two fixed blocks (6). Two symmetrical sliders (8) are slidably connected to the two sliding rods (7). Between the blocks (6), there is a drive assembly that enables the two sliders (8) to move synchronously relative to each other. The two lower sliders (8) and the two upper sliders (8) are fixedly connected to the opposite sides of the vertical plates (9). The two lower vertical plates (9) are fixedly connected to the opposite sides of the clamping blocks (10) for clamping the cylinder bottom. The two upper vertical plates (9) are fixedly connected to the opposite sides of the clamping blocks (13) for clamping the cylinder barrel. The upper surface of the base plate (1) is provided with a mechanical arm, and the end of the mechanical arm is provided with a welding head.

2. The welding equipment for the cylinder housing of an aerial work platform according to claim 1, characterized in that: The drive assembly includes a bidirectional lead screw (15) rotatably connected between two fixed blocks (6), and the bidirectional lead screw (15) passes through two sliders (8) and is threadedly connected thereto. One side of one of the fixed blocks (6) is fixedly connected to a drive motor (16) that causes the bidirectional lead screw (15) to rotate in both directions along the axial direction.

3. The welding equipment for the cylinder housing of an aerial work platform according to claim 2, characterized in that: The other end of the bidirectional lead screw (15) passes through one side of the fixing block (6) and is fixedly connected to a disc (17). The outer circumference of the disc (17) is provided with a plurality of insertion holes (18) arranged in a ring array. An electromagnetic pin (19) that cooperates with the insertion holes (18) is fixedly connected to one side of the fixing block (6).

4. The welding equipment for the cylinder housing of an aerial work platform according to claim 1, characterized in that: V-grooves (11) are provided on one side of clamping block one (10) and one side of clamping block two (13), and a shelf (12) is fixedly connected to one side of the V-grooves (11) on clamping block one (10).

5. The welding equipment for the cylinder housing of an aerial work platform according to claim 4, characterized in that: There are at least two clamping blocks (13) on the same side, and the two clamping blocks (13) located above each have a stop block (14) fixedly connected to one side of the V-groove (11).

6. The welding equipment for the cylinder housing of an aerial work platform according to claim 1, characterized in that: Multiple electric push rods (4) are fixedly connected between the upper surface of the base plate (1) and the lower surface of the top plate (3), and a second drive motor (20) for rotating the upper rotating disk (5) is fixedly connected to the upper surface of the top plate (3).

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