Tail gas processor welding tool mounting and dismounting device

Abstract

The utility model discloses a tail gas processor welding frock installation and dismounting device, including work table, the top fixedly connected with support platform of work table, and the top of work table is equipped with three fixed components, the fixed component is including two with work table fixed connection's pneumatic cylinder, two the pneumatic cylinder is mirror image distribution, two the output of pneumatic cylinder all has the down pressure plate through the pin shaft rotation connection, the outer surface rotation of down pressure plate is connected with the support block, the support block is fixedly connected with work table, the utility model discloses a fixed component is set up, cooperation location frame and the sliding connection of guide rod, when the pneumatic cylinder can be quick to remove clamping locking, when installing and dismounting can nimblely avoid work piece, further avoided work piece jam, make installation and dismounting operation more convenient and efficient, can also protect work piece surface and welding interface not be damaged, realized the optimization of adjustment convenience, installation and dismounting efficiency and work piece protectivity.

Description

Technical Field

[0001] This utility model belongs to the field of automobile manufacturing technology, specifically a device for installing and disassembling exhaust gas processor welding fixtures. Background Technology

[0002] In the production of automotive exhaust aftertreatment systems, critical components such as catalytic converters require precise positioning and stable clamping using welding fixtures to ensure the smooth progress of the welding process. After welding is completed, the workpiece must be safely and efficiently removed from the welding fixture; this step is a crucial link between the welding process and subsequent processing or assembly. To meet the requirements for continuity and reliability in the installation and removal of welded workpieces in the mass production of automotive parts, a dedicated installation and removal device adapted to exhaust aftertreatment welding fixtures is urgently needed to achieve the orderly removal of workpieces from the fixtures and ensure the smooth progress of the production process.

[0003] CN2022222389375 describes a specially designed welding fixture for a dual-pipe automotive exhaust gas processor, comprising: a herringbone-shaped welding pipe, with a limiting device at the left end of the herringbone-shaped welding pipe; the limiting device includes a moving block, and the left end of the herringbone-shaped welding pipe, located on both its front and rear sides, has sliding grooves, the inner surfaces of which are slidably connected to the moving block; a clamping block is rotatably connected to the left end of the moving block, the clamping block being arc-shaped and externally fitted with a second high-temperature resistant rubber tube. According to the aforementioned welding fixture for a dual-pipe automotive exhaust gas processor, a first high-temperature resistant rubber tube is fitted at each forked end of the herringbone-shaped welding pipe. The first high-temperature resistant rubber tube is connected to an external exhaust gas outlet.

[0004] Existing exhaust gas processor welding fixture installation and disassembly devices generally suffer from problems such as cumbersome clamp adjustment operations and poor installation and disassembly flexibility during use. The clamping angle is mostly a fixed structure, which requires the replacement of special accessories or repeated adjustments when adapting to different specifications of workpieces. Moreover, the clamping structure is not completely loosened after welding, and the workpiece is easy to stick to the clamp. Manual forced separation is required during installation and disassembly, which is not only time-consuming and laborious, but also easy to damage the workpiece.

[0005] Therefore, a device for installing and disassembling exhaust gas processor welding fixtures is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides an installation and disassembly device for exhaust gas processor welding fixtures. This device not only makes installation and disassembly operations more convenient and efficient, but also protects the workpiece surface and welding interface from damage. It optimizes the ease of adjustment, efficiency of installation and disassembly, and protection of the workpiece, and effectively solves the problems of inconvenient adjustment and poor adaptability of existing devices. It also reduces the difficulty of fixture adjustment and improves adaptability efficiency.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a device for installing and disassembling a welding fixture for an exhaust gas processor, comprising a workbench, a support platform fixedly connected to the top of the workbench, and three fixing components on the top of the workbench. Each fixing component includes two cylinders fixedly connected to the workbench, the two cylinders being mirror-distributed, and the output ends of the two cylinders being rotatably connected to a lower pressure plate via pins. A support block is rotatably connected to the outer surface of the lower pressure plate, the support block being fixedly connected to the workbench. A positioning frame is provided below one end of each of the two lower pressure plates, and the two positioning frames are slidably connected to the support platform.

[0008] Preferably, the top of the support platform has two guide grooves, the inner surfaces of the two guide grooves are fixedly connected to guide rods, the bottom ends of the two positioning frames are fixedly connected to guide blocks, and the two guide blocks are slidably sleeved with the two guide rods respectively.

[0009] Preferably, both positioning frames are L-shaped, the top surface of the horizontal section of the positioning frame is a flat force-bearing surface, and the bottom ends of both lower pressure plates are fixedly connected with anti-slip pads. The anti-slip pads are adapted to fit the top surface of the horizontal section of the positioning frame to increase the friction between the lower pressure plate and the positioning frame.

[0010] Preferably, the positioning frame includes an adjusting screw that is threadedly connected to the positioning frame, one end of the adjusting screw passes through the positioning frame and is rotatably connected to a clamping plate, and one end of the clamping plate is provided with a clamping groove.

[0011] Preferably, the clamping surface of the clamping groove is arc-shaped, and the inner surface of the clamping groove is provided with a high-temperature resistant soft pad with anti-slip texture.

[0012] Preferably, a knob is fixedly connected to the end of the adjusting screw away from the clamping plate.

[0013] Preferably, the positioning frame has a receiving groove at one end near the clamping plate, and a locking block that matches the receiving groove is fixedly connected to the outer surface of the clamping plate. A wear-resistant pad is fixedly connected to the contact surface between the locking block and the receiving groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This utility model, by setting a fixing component and cooperating with the sliding connection between the positioning frame and the guide rod, can quickly release the clamping lock when the cylinder retracts. During installation and disassembly, it can flexibly avoid the workpiece, further preventing workpiece jamming. This makes the installation and disassembly operations more convenient and efficient, and protects the workpiece surface and welding interface from damage. It achieves optimization of adjustment convenience, installation and disassembly efficiency and workpiece protection.

[0016] This invention, through the use of a positioning frame and a combination of clamping plates, adjusting screws, and knobs, allows for fine-tuning of the clamping distance by manually rotating the knobs and adjusting the clamping angle by flipping the clamping plates. Without the need to replace special parts, it can quickly adapt to exhaust gas workpieces of different diameters and tilt requirements, effectively solving the problems of inconvenient adjustment and poor adaptability of existing devices, reducing the difficulty of clamp adjustment, and improving adaptation efficiency. In particular, the lever structure design of the lower pressure plate has unexpected benefits. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of the present invention with some fixing components removed;

[0019] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0020] Figure 4 This is an exploded view of the adjusting screw, positioning frame, and clamping plate structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the clamping plate structure of this utility model.

[0022] In the diagram: 1. Workbench;

[0023] 2. Support platform; 21. Guide groove; 22. Guide rod;

[0024] 3. Fixing components; 31. Cylinder; 32. Support block; 33. Lower pressure plate; 331. Anti-slip pad;

[0025] 34. Positioning bracket; 341. Adjusting screw; 342. Knob; 343. Guide block; 344. Receiving groove; 345. Clamping plate; 346. Clamping groove; 347. Wear-resistant pad; 348. Locking block. Detailed Implementation

[0026] 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.

[0027] like Figures 1 to 5As shown, this utility model provides an installation and disassembly device for a welding fixture for an exhaust gas processor, including a workbench 1, a support platform 2 fixedly connected to the top of the workbench 1, and three fixing components 3 provided at the top of the workbench 1.

[0028] The fixing component 3 includes two cylinders 31 fixedly connected to the worktable 1. The two cylinders 31 are mirror-distributed. The output ends of the two cylinders 31 are rotatably connected to the lower pressure plate 33 via pins. The outer surface of the lower pressure plate 33 is rotatably connected to the support block 32. The support block 32 is fixedly connected to the worktable 1. A positioning frame 34 is provided below one end of each of the two lower pressure plates 33. The two positioning frames 34 are slidably connected to the support platform 2. By setting three fixing components 3 at the top of the worktable 1, combined with the lever transmission structure of the cylinders 31 driving the lower pressure plate 33, multi-point coordinated clamping and quick unlocking can be formed for the welded exhaust gas system workpieces such as exhaust pipes and welded joints. At the same time, the sliding connection design between the positioning frame 34 and the support platform 2 can flexibly adapt to different specifications of exhaust gas welding workpieces, solving the problem of easy jamming and poor adaptability of a single clamping point during the installation and disassembly of traditional devices, and providing a stable foundation for efficient installation and disassembly.

[0029] Specifically, the top of the support platform 2 has two guide grooves 21, and the inner surfaces of the two guide grooves 21 are fixedly connected to guide rods 22. The bottom ends of the two positioning frames 34 are fixedly connected to guide blocks 343. The two guide blocks 343 are slidably sleeved with the two guide rods 22 respectively. The guide grooves 21 and guide rods 22 of the support platform 2 and the guide blocks 343 at the bottom of the positioning frames 34 form a precise sliding fit, which limits the positioning frames 34 to only move in the horizontal direction, avoiding the positioning frames 34 from shifting or tilting during clamping, installation and disassembly, and ensuring that the welding interface of the workpiece always remains aligned. This not only ensures the welding quality, but also avoids installation and disassembly difficulties caused by positioning deviation, and improves the smoothness of installation and disassembly.

[0030] like Figures 1 to 5 As shown, both positioning frames 34 are L-shaped. The top surface of the horizontal section of the positioning frame 34 is a flat force-bearing surface. The bottom ends of the two lower pressure plates 33 are fixedly connected with anti-slip pads 331. The anti-slip pads 331 fit and conform to the top surface of the horizontal section of the positioning frame 34 to increase the friction between the lower pressure plate 33 and the positioning frame 34. The positioning frame 34 is L-shaped, and its top surface of the horizontal section provides a flat force-bearing surface. It fits and conforms to the anti-slip pads 331 at the bottom end of the lower pressure plate 33. On the one hand, it provides a stable force-bearing carrier for the downward locking of the lower pressure plate 33. On the other hand, the anti-slip pads 331 increase the friction to prevent slippage when the cylinder 31 is driven, ensuring stable transmission of clamping force. At the same time, the cylinder 31 can quickly release the lock when it retracts during installation and disassembly without additional unlocking operation, improving the convenience of installation and disassembly.

[0031] Furthermore, the positioning frame 34 includes an adjusting screw 341 threadedly connected to the positioning frame 34. One end of the adjusting screw 341 passes through the positioning frame 34 and is rotatably connected to a clamping plate 345. One end of the clamping plate 345 has a clamping groove 346. The clamping plate 345 is rotatably connected to the adjusting screw 341 and can rotate around the axis of the adjusting screw 341 to adjust the clamping angle, adapting to welded exhaust gas workpieces such as irregularly shaped pipes and inclined butt pipes. After adjusting the angle, the clamping plate 345 can be locked at the target angle by tightening the adjusting screw 341. This solves the problem of fixed angle of traditional clamps and inability to adapt to inclined workpieces. It also allows for flexible adjustment of the angle by loosening the adjusting screw 341 during installation and disassembly, preventing the workpiece from getting stuck with the clamping plate 345 and achieving rapid separation.

[0032] like Figures 1 to 5 As shown, the clamping surface of the clamping groove 346 is arc-shaped, and the inner surface of the clamping groove 346 is provided with a high-temperature resistant soft pad with anti-slip texture. This can increase the contact friction with the exhaust gas workpiece, prevent the workpiece from sliding during welding, and avoid surface scratches or welding interface damage caused by hard contact between the workpiece and the clamping plate 345 during installation and disassembly. At the same time, the high-temperature resistant material can withstand the residual high temperature after welding, preventing the soft pad from softening and sticking to the workpiece, ensuring smooth installation and disassembly without damaging the finished product.

[0033] It is worth noting that the end of the adjusting screw 341 away from the clamping plate 345 is fixedly connected to a knob 342, which can be easily rotated and adjusted without additional tools. This facilitates adjusting the clamping angle of the clamping plate 345 and allows for quick tightening or loosening of the screw to lock or unlock, thus improving the overall efficiency of adjustment.

[0034] like Figures 1 to 5 As shown, the positioning frame 34 has a receiving groove 344 at one end near the clamping plate 345. A locking block 348 that is used in conjunction with the receiving groove 344 is fixedly connected to the outer surface of the clamping plate 345. A wear-resistant pad 347 is fixedly connected to the contact surface between the locking block 348 and the receiving groove 344. After the clamping plate 345 is adjusted and locked, the stability of the clamping plate 345 can be further enhanced, and the angle deviation can be avoided during welding vibration. At the same time, the wear-resistant pad 347 reduces long-term friction and wear, ensures the durability of the angle adjustment and locking structure, and ensures the smoothness of the installation and disassembly process.

[0035] Working principle and process: When in use, first rotate the clamping plate 345 to the target clamping angle according to the specifications and angle requirements of the welded exhaust gas workpiece. Tighten the adjusting screw 341 by the knob 342 to lock the clamping plate 345 at this angle. Then push the positioning frame 34 so that it slides along the guide rod 22 of the support platform 2 through the guide block 343 to the workpiece matching position. At this time, the locking block 348 of the clamping plate 345 is embedded in the receiving groove 344 of the positioning frame 34, and the wear-resistant pad 347 enhances the locking stability. Place the workpiece to be welded in the arc-shaped clamping groove 346 of the three fixed components 3.

[0036] When the cylinder 31 is activated, the output end of the cylinder 31 pushes the lower pressure plate 33 to rotate around the support block 32. The anti-slip pad 331 at the bottom of the lower pressure plate 33 is in close contact with the top surface of the horizontal section of the positioning frame 34. The positioning frame 34 is locked by lever pressure, realizing multi-point stable clamping of the workpiece and ensuring the preparation for installation and disassembly after subsequent welding or cooling.

[0037] When installation and disassembly are required, the control cylinder 31 retracts, the lower pressure plate 33 lifts up, releasing the locking pressure on the positioning frame 34. Then, the positioning frame 34 is pushed to slide along the guide rod 22 to both sides, so that the welded exhaust gas workpiece can be easily removed, completing the entire installation and disassembly process.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for installing and disassembling welding fixtures for exhaust gas processors, comprising a workbench (1), characterized in that: The top of the workbench (1) is fixedly connected to a support platform (2), and the top of the workbench (1) is provided with three fixing components (3); The fixing component (3) includes two cylinders (31) fixedly connected to the worktable (1). The two cylinders (31) are arranged in a mirror image. The output ends of the two cylinders (31) are rotatably connected to a lower pressure plate (33) via a pin. The outer surface of the lower pressure plate (33) is rotatably connected to a support block (32). The support block (32) is fixedly connected to the worktable (1). A positioning frame (34) is provided below one end of each of the two lower pressure plates (33). The two positioning frames (34) are slidably connected to the support table (2).

2. The exhaust gas processor welding fixture installation and disassembly device according to claim 1, characterized in that: The top of the support platform (2) has two guide grooves (21), and the inner surfaces of the two guide grooves (21) are fixedly connected with guide rods (22). The bottom ends of the two positioning frames (34) are fixedly connected with guide blocks (343), and the two guide blocks (343) are slidably sleeved with the two guide rods (22) respectively.

3. The exhaust gas processor welding fixture installation and disassembly device according to claim 2, characterized in that: Both positioning frames (34) are L-shaped. The top surface of the horizontal section of the positioning frame (34) is a flat force-bearing surface. The bottom ends of the two lower pressure plates (33) are fixedly connected with anti-slip pads (331). The anti-slip pads (331) are adapted to fit the top surface of the horizontal section of the positioning frame (34) to increase the friction between the lower pressure plate (33) and the positioning frame (34).

4. The exhaust gas processor welding fixture installation and disassembly device according to claim 3, characterized in that: The positioning frame (34) includes an adjusting screw (341) threadedly connected to the positioning frame (34). One end of the adjusting screw (341) passes through the positioning frame (34) and is rotatably connected to a clamping plate (345). One end of the clamping plate (345) is provided with a clamping groove (346).

5. The exhaust gas processor welding fixture installation and disassembly device according to claim 4, characterized in that: The clamping surface of the clamping groove (346) is arc-shaped, and the inner surface of the clamping groove (346) is provided with a high-temperature resistant soft pad with anti-slip texture.

6. The exhaust gas processor welding fixture installation and disassembly device according to claim 4, characterized in that: A knob (342) is fixedly connected to the end of the adjusting screw (341) away from the clamp (345).

7. The exhaust gas processor welding fixture installation and disassembly device according to claim 4, characterized in that: The positioning frame (34) has a receiving groove (344) at one end near the clamping plate (345). A locking block (348) for use with the receiving groove (344) is fixedly connected to the outer surface of the clamping plate (345). A wear-resistant pad (347) is fixedly connected to the contact surface between the locking block (348) and the receiving groove (344).

Images