A fixing device for steel-plastic conversion piece welding

Abstract

The utility model relates to welding auxiliary equipment technical field discloses a kind of steel plastic conversion piece welding with fixing device, including workbench, the outside of workbench is fixedly connected with multiple support blocks, the outside of support block is provided with conversion joint, the outside of workbench is provided with multiple guide slots, the outside of guide slot is fixedly connected with positioning mechanism, the inside of workbench is fixedly connected with support mechanism;The positioning mechanism includes hydraulic cylinder, the outside of hydraulic cylinder is fixedly connected in the outside of guide slot, the drive end of hydraulic cylinder is fixedly connected with connecting rod, the outside of connecting rod is fixedly connected with follow-up plate.In the utility model, connecting rod is moved by hydraulic cylinder, so that follow-up plate drives positioning plate to move, and then connecting block drives fixed ring to move, so that steel plastic conversion piece welding position can be accurately aligned, and shaking is reduced during welding, to ensure batch production accuracy.

Description

Technical Field

[0001] This utility model relates to the field of welding auxiliary equipment technology, and in particular to a fixing device for welding steel-plastic conversion parts. Background Technology

[0002] In mass production in factories, the device simultaneously fixes multiple sets of steel-plastic conversion parts, working with automated welding equipment to achieve continuous operation and improve welding consistency; in building water supply and drainage engineering, for steel-plastic conversion parts of different pipe diameters, the fixing device stably clamps them to ensure pressure uniformity during hot melt welding; when welding chemical pipelines, the device can stably clamp conversion parts with anti-corrosion coatings to ensure the corrosion resistance of the interface.

[0003] In the existing technology, some fixing devices are only compatible with conversion parts of specific pipe diameters. When changing to different specifications, the corresponding clamps need to be replaced. Some structures are relatively complex, containing multi-stage adjustment components. During operation, multiple knob fixing processes are required. They adopt a rigid metal clamping structure with a flat or simple arc-shaped clamping surface, and are fixed by tightening bolts. Overall, they have poor portability.

[0004] However, in actual use, precise positioning cannot be achieved. During welding, the steel-plastic parts are prone to displacement, resulting in misalignment of the interface axis, and problems such as incomplete welding and missing welding. Uneven stress at the interface affects the connection strength and sealing performance, creating safety hazards and failing to meet the requirements for precise welding. In order to address the above problems, a fixing device for welding steel-plastic conversion parts is proposed. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a fixing device for welding steel-plastic conversion parts, aiming to improve the problem that some fixing devices for welding steel-plastic conversion parts in the prior art cannot achieve precise positioning.

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

[0007] A fixing device for welding steel-plastic conversion parts includes a worktable, a plurality of support blocks fixedly connected to the outside of the worktable, conversion joints provided on the outside of the support blocks, a plurality of guide grooves opened on the outside of the worktable, a positioning mechanism fixedly connected to the outside of the guide grooves, and a support mechanism fixedly connected to the inside of the worktable.

[0008] The positioning mechanism includes a hydraulic cylinder, which is externally fixedly connected to the outside of the guide groove. A connecting rod is fixedly connected to the drive end of the hydraulic cylinder. A follower plate is fixedly connected to the outside of the connecting rod. Multiple connecting rods are rotatably connected to the outside of the follower plate. A positioning plate is fixedly connected to the outside of the connecting rod. A connecting block is fixedly connected to the outside of the positioning plate. A fixing ring is fixedly connected to the outside of the connecting block. Multiple limiting components are fixedly connected to the outside of the support block.

[0009] As a further description of the above technical solution:

[0010] The limiting component includes a fixing block, which is fixedly connected to the outside of the support block. The fixing block has a limiting groove, and a limiting ring is slidably connected to the outside of the limiting groove.

[0011] As a further description of the above technical solution:

[0012] The support mechanism includes a support frame, which is rotatably connected to the outside of the workbench, and a support rod is fixedly connected inside the support frame.

[0013] As a further description of the above technical solution:

[0014] The support rod is externally fixedly connected to a gear, and the workbench is internally fixedly connected to multiple cylinders.

[0015] As a further description of the above technical solution:

[0016] The cylinder has a drive rod fixedly connected to its drive end, and a connecting plate is fixedly connected to the outer right side of the drive rod.

[0017] As a further description of the above technical solution:

[0018] A rack plate is fixedly connected to the outside of the connecting plate, and the rack plate is slidably connected to the inside of the worktable.

[0019] As a further description of the above technical solution:

[0020] The workbench is provided with a mounting slot on the outside, and a magnetic strip is detachably connected to the outside of the mounting slot;

[0021] As a further description of the above technical solution:

[0022] The connecting rod is slidably connected to the outside of the limiting groove, and a limiting ring is fixedly connected to the outside of the connecting rod.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the connecting rod is driven by a hydraulic cylinder to move, which in turn causes the follower plate to move the positioning plate, which in turn causes the connecting block to move the fixing ring, thereby achieving precise positioning and accurate alignment of the welding position of the steel-plastic conversion part, avoiding offset, preventing workpiece deformation, adapting to conversion parts of different specifications, reducing shaking during welding, and ensuring the accuracy of mass production.

[0025] 2. In this utility model, the cylinder drives the active rod to move, which in turn drives the rack plate to move the gear, which in turn drives the support rod to move the support frame. This can prevent long pipes from drooping and bending due to their own weight, ensure the straightness of the welding, distribute the force through multiple support points, prevent pipe deformation, adapt to pipes of different specifications, stabilize the support to reduce vibration during welding, and ensure uniform weld joints. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a fixing device for welding steel-plastic conversion parts proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of a support block for a fixing device for welding steel-plastic conversion parts according to the present invention;

[0028] Figure 3 This is a schematic diagram of the gear structure of a fixing device for welding steel-plastic conversion parts proposed in this utility model;

[0029] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0030] Legend:

[0031] 1. Workbench; 2. Support block; 3. Adapter joint; 4. Guide groove; 5. Hydraulic cylinder; 6. Connecting rod; 7. Follower plate; 8. Connecting rod; 9. Positioning plate; 10. Connecting block; 11. Fixing ring; 12. Fixing block; 13. Limiting groove; 14. Limiting ring; 15. Support frame; 16. Support rod; 17. Gear; 18. Cylinder; 19. Driving rod; 20. Connecting plate; 21. Rack plate; 22. Mounting groove; 23. Magnetic strip. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of a fixing device for welding steel-plastic conversion parts, including a workbench 1. Multiple support blocks 2 are fixedly connected to the outside of the workbench 1. The support blocks 2 are evenly distributed along the length of the workbench 1. The top of each support block 2 is machined with an arc-shaped groove that matches the outer contour of the conversion connector 3. The surface of the groove is smooth and can fit the outside of the conversion connector 3, providing stable support for the conversion connector 3. The conversion connector 3 is provided on the outside of the support block 2. The conversion connector 3 is placed in the arc-shaped groove on the top of the support block 2, and its two ends extend to the two sides of the support block 2, respectively, waiting to be welded and fixed. Multiple guide grooves 4 are provided on the outside of the workbench 1. The length of the guide grooves 4 is determined according to the movement range of the positioning mechanism. The edges of the grooves are chamfered to prevent scratching the parts. A positioning mechanism is fixedly connected to the outside of the guide grooves 4. A support mechanism is fixedly connected to the inside of the workbench 1. The positioning mechanism includes a hydraulic cylinder 5, which is fixedly connected to the outside of the guide grooves 4.

[0034] A connecting rod 6 is fixedly connected to the drive end of the hydraulic cylinder 5. The axis of the connecting rod 6 coincides with the axis of the piston rod of the hydraulic cylinder 5, allowing it to move under the drive of the piston rod and transmit the driving force of the hydraulic cylinder 5. A follower plate 7 is fixedly connected to the outside of the connecting rod 6. The length of the follower plate 7 is slightly smaller than the width of the guide groove 4, and there are small gaps between its two sides and the groove walls of the guide groove 4 to ensure that there is no jamming during sliding. Multiple connecting rods 8 are rotatably connected to the outside of the follower plate 7. When the follower plate 7 moves, the connecting rods 8 can rotate around the pin shaft, changing the included angle with the follower plate 7, thus connecting... A positioning plate 9 is fixedly connected to the outside of the rod 8. The two ends of the positioning plate 9 are connected to the connecting rod 8 and the connecting block 10 respectively. Under the push of the connecting rod 8, it can move closer to or away from the conversion joint 3. The positioning plate 9 is fixedly connected to the outside of the connecting block 10. The connecting block 10 is fixedly connected to the outside of the connecting block 10. The support block 2 is fixedly connected to the outside of the support block 2. The limiting components include a fixing block 12. The fixing block 12 is fixedly connected to the outside of the support block 2. The fixing block 12 has a limiting groove 13. The limiting groove 13 is slidably connected to the outside of the limiting ring 14.

[0035] Reference Figure 1 , Figure 2 and Figure 3The support mechanism includes a support frame 15, which is externally rotatably connected to the outside of the workbench 1. A support rod 16 is fixedly connected inside the support frame 15. A gear 17 is sleeved in the middle of the support rod 16. The two are connected to achieve synchronous rotation. The gear 17 is fixedly connected to the outside of the support rod 16. When the rack plate 21 moves, it can drive the gear 17 to rotate, thereby driving the support rod 16 and the support frame 15 to rotate synchronously. Multiple cylinders 18 are fixedly connected inside the workbench 1. The piston rod of the cylinder 18 extends in the same direction as the length direction of the workbench 1. It can perform reciprocating linear motion under the drive of compressed air. The driving force is stable. An active rod 19 is fixedly connected to the drive end of the cylinder 18. A connecting plate 20 is fixedly connected to the right side of the active rod 19. The height of the connecting plate 20 is adapted to the width of the rack plate 21. The surface is flat, providing a stable installation base for the rack plate 21.

[0036] A rack plate 21 is fixedly connected to the outside of the connecting plate 20. The rack plate 21 is placed horizontally and its bottom is slidably connected to the slide groove inside the worktable 1. It can move left and right along the slide groove under the drive of the active rod 19 and form a meshing transmission with the gear 17. The rack plate 21 is slidably connected to the inside of the worktable 1. The worktable 1 is provided with an installation groove 22. The installation groove 22 is a long rectangular groove that is opened along the edge of the worktable 1. A magnetic strip 23 is detachably connected to the outside of the installation groove 22. The magnetic strip 23 can attract ferromagnetic tools. The connecting rod 8 is slidably connected to the outside of the limiting groove 13. A limiting ring 14 is fixedly connected to the outside of the connecting rod 8.

[0037] Working principle: By placing the adapter 3 in the arc-shaped groove on the top of the support block 2, with both ends extending to the sides of the support block 2, the hydraulic cylinder 5 is activated, and the drive end drives the connecting rod 6 to move. The follower plate 7 slides along the guide groove 4, causing the connecting rod 8 to rotate around the pin on the follower plate 7. The angle gradually changes, and the positioning plate 9 moves closer to the adapter 3 under the push of the connecting rod 8. The connecting block 10 drives the fixing ring 11 to move synchronously. The fixing ring 11 gradually fits onto the outside of the adapter 3 until the rubber anti-slip pad on the inner side of the positioning plate 9 fits the adapter 3. This allows for precise alignment of the welding position of the steel-plastic conversion parts, preventing misalignment.

[0038] By activating cylinder 18, the piston rod extends and pushes the drive rod 19 to slide along the bottom of the worktable 1, causing the connecting plate 20 to move with the drive rod 19. This causes the rack plate 21 to slide along the groove inside the worktable 1, thereby causing the rack plate 21 to mesh with the gear 17, driving the gear 17 to rotate. This causes the support rod 16 to rotate synchronously with the gear 17, and the support frame 15 to flip upwards to be parallel to the worktable 1, thus adapting to different specifications of pipe fittings and providing stable support.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fixing device for welding steel-plastic conversion parts, comprising a workbench (1), characterized in that: The workbench (1) is fixedly connected to a plurality of support blocks (2), and the support blocks (2) are provided with conversion connectors (3). The workbench (1) is provided with a plurality of guide grooves (4), and the guide grooves (4) are fixedly connected to a positioning mechanism. The workbench (1) is fixedly connected to a support mechanism. The positioning mechanism includes a hydraulic cylinder (5), which is externally fixedly connected to the outside of the guide groove (4). A connecting rod (6) is fixedly connected to the driving end of the hydraulic cylinder (5). A follower plate (7) is fixedly connected to the outside of the connecting rod (6). Multiple connecting rods (8) are rotatably connected to the outside of the follower plate (7). A positioning plate (9) is fixedly connected to the outside of the connecting rod (8). A connecting block (10) is fixedly connected to the outside of the positioning plate (9). A fixing ring (11) is fixedly connected to the outside of the connecting block (10). Multiple limiting components are fixedly connected to the outside of the support block (2).

2. The fixing device for welding steel-plastic conversion parts according to claim 1, characterized in that: The limiting component includes a fixing block (12), which is fixedly connected to the outside of the support block (2). The fixing block (12) has a limiting groove (13), and a limiting ring (14) is slidably connected to the outside of the limiting groove (13).

3. The fixing device for welding steel-plastic conversion parts according to claim 2, characterized in that: The support mechanism includes a support frame (15), which is rotatably connected to the outside of the workbench (1), and a support rod (16) is fixedly connected inside the support frame (15).

4. The fixing device for welding steel-plastic conversion parts according to claim 3, characterized in that: The support rod (16) is externally fixedly connected to a gear (17), and the workbench (1) is internally fixedly connected to multiple cylinders (18).

5. The fixing device for welding steel-plastic conversion parts according to claim 4, characterized in that: The driving end of the cylinder (18) is fixedly connected to the drive rod (19), and the outer right side of the drive rod (19) is fixedly connected to the connecting plate (20).

6. The fixing device for welding steel-plastic conversion parts according to claim 5, characterized in that: The connecting plate (20) is fixedly connected to the outside of a rack plate (21), and the rack plate (21) is slidably connected to the inside of the workbench (1).

7. The fixing device for welding steel-plastic conversion parts according to claim 1, characterized in that: The workbench (1) is provided with an installation slot (22) on the outside, and a magnetic strip (23) is detachably connected to the outside of the installation slot (22).

8. The fixing device for welding steel-plastic conversion parts according to claim 2, characterized in that: The connecting rod (8) is slidably connected to the outside of the limiting groove (13), and the connecting rod (8) is fixedly connected to the outside of the limiting ring (14).

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