Auxiliary mechanism for welding muffler top cover plate support

CN224642738UActive Publication Date: 2026-08-18CHANGZHOU JIANGNAN ENVIRONMENTAI EQUIP CO LTD
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Patent Information

Application Number
CN202522037596.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-23
Publication Date
2026-08-18
Estimated Expiration
2035-09-23

AI Technical Summary

Technical Problem

[0003]锅炉尾端消音一般是将气流从大孔中挤压至小孔,通过小孔排出,并通过双层孔板的反射及摩擦,实现削弱声波强度的效果,为了将气流挤压至小孔内,消音器顶部需要固定封板,封板一般为铁质,为了保证其抗冲击能力,并减少共振产生,需要在封板内部焊接支架以提高强度,现有的支架焊接过程中,缺少必要定位装置,导致批量生产时焊接位置不统一,并且焊接位置存在偏差容易导致定长切割的支架无法有效安装,焊接过程中也无法对封板及其内部焊接条进行支撑角度调整,导致工人在焊接区域操作不便

Benefits of technology

该消音器顶部封板支架焊接用辅助机构对封板进行固定后,对内部支架进行定位固定,并将装夹的封板进行倾斜角度调整,焊接过程中还能对装夹的封板进行旋转,以改变焊接区域,从而使焊接位置始终处于操作人员易于操作的区域,从而便于支架定位及焊接工作。

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Abstract

The utility model relates to a boiler silencer production technical field especially, and more particularly to a kind of auxiliary mechanism for welding of silencer top sealing plate support, including operation bench, connecting frame, supporting mechanism, clamping mechanism and positioning mechanism, the connecting frame is fixedly arranged in the operation bench top one end, the supporting mechanism is movably connected with connecting frame, the clamping mechanism is movably connected with the inside of supporting mechanism, the positioning mechanism is clamped in the inside of clamping mechanism, the supporting mechanism includes mounting ring, support strip, plug rod, connecting seat, pull rod, spring, pressure seat and handle, after this auxiliary mechanism for welding of silencer top sealing plate support is fixed to sealing plate, inside support is positioned and fixed, and the clamping sealing plate is adjusted to inclination angle, the clamping sealing plate can also be rotated in welding process, to change welding area, so that welding position is always in the area that operator is easy to operate, so as to facilitate support positioning and welding work.
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Description

Technical Field

[0001] This utility model relates to the field of boiler silencer manufacturing technology, and in particular to an auxiliary mechanism for welding the top sealing plate bracket of a silencer. Background Technology

[0002] The main function of a boiler tail-end silencer is to reduce the noise generated during steam discharge. Its core function is to weaken sound wave energy through silencing structural design, thereby reducing significant noise pollution generated during high-speed airflow discharge and protecting the environment and human health.

[0003] Boiler tail-end silencing typically involves squeezing airflow from a large hole to a small hole, which then discharges the air. The sound wave intensity is reduced through reflection and friction from the double-layer perforated plate. To squeeze the airflow into the small hole, a sealing plate needs to be fixed at the top of the silencer. The sealing plate is usually made of iron. To ensure its impact resistance and reduce resonance, a support needs to be welded inside the sealing plate to increase its strength. However, the existing support welding process lacks necessary positioning devices, resulting in inconsistent welding positions during mass production. Furthermore, deviations in welding positions can easily lead to the ineffective installation of fixed-length cut supports. During the welding process, it is also impossible to adjust the support angle of the sealing plate and its internal welding strips, causing inconvenience for workers operating in the welding area. Utility Model Content

[0004] This utility model addresses the deficiencies in the prior art by providing an auxiliary mechanism for welding the top sealing plate bracket of a muffler.

[0005] This utility model is achieved through the following technical solution: An auxiliary mechanism for welding a muffler top sealing plate bracket includes an operating table, a connecting frame, a support mechanism, a clamping mechanism, and a positioning mechanism. The connecting frame is fixedly mounted on one end of the top of the operating table. The support mechanism is movably connected to the connecting frame. The clamping mechanism is movably connected to the inner side of the support mechanism. The positioning mechanism is engaged inside the clamping mechanism. The support mechanism includes a mounting ring, a support bar, a plug rod, a connecting seat, a pull rod, a spring, a pressure seat, and a handle. The support bar is fixedly mounted on the bottom of one end of the mounting ring. The plug rod is engaged inside the support bar. The connecting seat is fixedly disposed on the outside of the mounting ring. The pull rod is movably connected to one end of the connecting seat. The spring is sleeved on the outside of the pull rod. The pressure seat is fixedly disposed on the end of the pull rod. The handle is fixedly disposed on the other end of the pull rod. The clamping mechanism includes a placement plate, a support block, a screw, a knob, a clamping seat, a guide strip, and a connecting ring. The support block is engaged inside the placement plate. The screw is fixedly disposed on one side of the support block. The knob is movably connected to the side of the placement plate. The clamping seat is movably connected to the end of the knob. The guide strip is fixedly disposed on the outside of the clamping seat.

[0006] In a preferred embodiment of this utility model, the positioning mechanism includes a pull plate, a connecting rod, a card holder, and a magnet. The connecting rod is fixedly disposed on the outside of the pull plate, the card holder is fixedly disposed on the bottom of the connecting rod, and the magnet is fixed to the bottom of the pull plate. The positioning mechanism is mainly used to fix the inside of the sealing plate and to position and fix the internal welded bracket, so as to clamp the bracket and facilitate the welding work.

[0007] In a preferred embodiment of the present invention, one end of the screw passes through and extends to the outside of one side of the placement tray, and a fixing nut is provided on its surface; one end of the guide bar passes through and extends to the outside of one side of the placement tray, and a guide hole that cooperates with it is opened on the side of the placement tray. Different support blocks can be selected according to the size of the sealing plate, and they are installed by screws and fixing nuts. The guide strip ensures that the pressing seat moves horizontally, thereby ensuring the pressing effect on the edge of the sealing plate.

[0008] In a preferred embodiment of the present invention, the top of the operating table is provided with a locking hole that cooperates with the support bar, the surface of the support bar is provided with a plug hole that cooperates with the plug rod, and both ends of the plug rod are locked onto the top of the operating table. The angle of the entire support mechanism can be adjusted by inserting rods into different holes in the support bars and locking the rods onto the surface of the operating table.

[0009] In a preferred embodiment of the present invention, the connecting ring and the mounting ring are movably connected by a bearing, and a toothed groove is provided at the bottom outer side of the connecting ring, and a locking tooth is provided on the inner side of the pressure seat to cooperate with it. By pulling the pressure seat outward, the inner retaining teeth of the pressure seat can be separated from the outer tooth groove of the connecting ring, thus enabling the rotation adjustment of the placement plate to regulate the welding area.

[0010] In a preferred embodiment of this utility model, the outer side of the mounting ring is movably connected to the connecting frame via a pin, and the bottom of the mounting ring contacts the upper surface of the operating table.

[0011] The beneficial effects of this utility model are: The auxiliary mechanism for welding the top cover plate bracket of the muffler fixes the cover plate, positions and fixes the internal bracket, and adjusts the tilt angle of the clamped cover plate. During the welding process, the clamped cover plate can also be rotated to change the welding area, so that the welding position is always in an area that is easy for the operator to operate, thereby facilitating bracket positioning and welding work. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the auxiliary mechanism for welding the top sealing plate bracket of the muffler according to this utility model; Figure 2This is a schematic diagram of the angle adjustment structure of the support mechanism for the auxiliary mechanism used in welding the top sealing plate bracket of the muffler according to this utility model. Figure 3 This is a schematic diagram of the sealing plate and its internal support clamping structure of the auxiliary mechanism for welding the top sealing plate bracket of the muffler of this utility model. Figure 4 This is a schematic diagram of the support mechanism for the auxiliary mechanism used in welding the top sealing plate bracket of the muffler according to this utility model.

[0013] In the diagram: 1. Operating table; 2. Connecting frame; 3. Support mechanism; 31. Mounting ring; 32. Support bar; 33. Insert rod; 34. Connecting seat; 35. Pull rod; 36. Spring; 37. Pressure seat; 38. Handle; 4. Clamping mechanism; 41. Placement tray; 42. Support block; 43. Screw; 44. Knob; 45. Pressing seat; 46. Guide bar; 47. Connecting ring; 5. Positioning mechanism; 51. Pull plate; 52. Connecting rod; 53. Card seat; 54. Magnet. Detailed Implementation

[0014] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. The directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "top," and "bottom," are only for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this utility model, and not for limiting this utility model.

[0015] like Figure 1-4The auxiliary mechanism for welding the top sealing plate bracket of a muffler shown includes an operating table 1, a connecting frame 2, a support mechanism 3, a clamping mechanism 4, and a positioning mechanism 5. The connecting frame 2 is fixedly installed at one end of the top of the operating table 1. The support mechanism 3 is movably connected to the connecting frame 2. The clamping mechanism 4 is movably connected to the inner side of the support mechanism 3. The positioning mechanism 5 is engaged inside the clamping mechanism 4. The support mechanism 3 includes an mounting ring 31, a support bar 32, a plug rod 33, a connecting seat 34, a pull rod 35, a spring 36, a pressure seat 37, and a handle 38. The support bar 32 is fixedly installed at the bottom of one end of the mounting ring 31. The plug rod 33 is engaged inside the support bar 32. The connecting seat 34... The clamping mechanism 4 includes a placement plate 41, a support block 42, a screw 43, a knob 44, a clamping seat 45, a guide bar 46, and a connecting ring 47. The support block 42 is clamped inside the placement plate 41. The screw 43 is fixedly installed on one side of the support block 42. The knob 44 is movably connected to the side of the placement plate 41. The clamping seat 45 is movably connected to the end of the knob 44. The guide bar 46 is fixedly installed outside the clamping seat 45.

[0016] Specifically, the positioning mechanism 5 includes a pull plate 51, a connecting rod 52, a retainer 53, and a magnet 54. The connecting rod 52 is fixedly installed on the outside of the pull plate 51, the retainer 53 is fixedly installed on the bottom of the connecting rod 52, and the magnet 54 is fixed to the bottom of the pull plate 51. One end of the screw 43 passes through and extends to the outside of one side of the placement plate 41, and a fixing nut is provided on its surface. One end of the guide bar 46 passes through and extends to the outside of one side of the placement plate 41. A guide hole that mates with the placement plate 41 is opened on the side of the placement plate 41. A retaining hole that mates with the support bar 32 is opened on the top of the operating table 1. An insertion hole that mates with the insertion rod 33 is opened on the surface of the support bar 32. Both ends of the insertion rod 33 are secured to the top of the operating table 1. The connecting ring 47 and the mounting ring 31 are movably connected by a bearing. A toothed groove is opened on the bottom of the outer side of the connecting ring 47. A retaining tooth is provided on the inner side of the pressure seat 37. The outer side of the mounting ring 31 is movably connected to the connecting frame 2 by a pin. The bottom of the mounting ring 31 contacts the upper surface of the operating table 1.

[0017] In this embodiment, the internal support of the sealing plate is first positioned and fixed. The cut support plate is clamped in the corresponding card holder 53. The connecting rod 52 connects each card holder 53 and fixes it with the pull plate 51. After the support is effectively combined and installed in the card holder 53, it is pressed onto the surface of the sealing plate. The length of the pull plate 51 matches the inner diameter of the sealing plate, so that the pull plate 51 can be automatically positioned to the center position after installation, thereby ensuring the installation position of the support. The magnet 54 is attracted to the inner side of the bottom of the sealing plate, so that the support is pressed into the inside of the sealing plate at the welding position, thereby realizing the positioning and fixing of the support inside the sealing plate. Then, a suitable support block 42 is selected according to the size of the sealing plate. The support block 42 is installed and fixed to the placement plate 41 through the back screw 43 and fixing nut, and the sealing plate is clamped in the placement plate 41, so that the outer surface of the placement plate 41 is in contact with one side of the support block 42. The knob 44 is rotated to press down the pressing seat 45 to fix the sealing plate. The guide strip 46 ensures that the pressing seat 45 moves horizontally.

[0018] Furthermore, the tilt angle of the clamping mechanism 4 can be controlled according to the welding needs of the workers. Simply lift the mounting ring 31, so that it flips up around the pin connecting the connecting frame 2, and insert the rod 33 into the corresponding insertion hole of the support bar 32. This allows the rod 33 to be mounted on the surface of the operating table 1, thus adjusting the tilt angle of the clamping mechanism 4. During the welding process, in order to rotate the welding area to the worker's operating area, simply pull the handle 38 outward, so that the pull rod 35 drives the pressure seat 37 to move backward. The spring 36 is compressed and contracts, thereby separating the inner teeth of the pressure seat 37 from the groove at the bottom of the connecting ring 47. This allows the connecting ring 47 to rotate and adjust within the mounting ring 31. After adjusting to the appropriate angle, release the handle 38. Under the action of the spring 36, the pressure seat 37 moves forward until its inner teeth engage with the groove at the bottom of the outer side of the connecting ring 47, thereby locking the rotation angle of the rotating placement plate 41, thus facilitating the welding work.

[0019] It should be noted that the parts not covered in this utility model are the same as or can be implemented using existing technology; the various drives in this utility model can be implemented by corresponding power structures such as cylinders, oil cylinders, electric cylinders, and motors in conjunction with connecting rods, guide rods, etc., and are not limited to the structures described in the specification and the drawings.

[0020] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," "set up," "equipped with," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. An auxiliary mechanism for welding a muffler top sealing plate bracket, comprising an operating table (1), a connecting frame (2), a support mechanism (3), a clamping mechanism (4), and a positioning mechanism (5), characterized in that: The connecting frame (2) is fixedly installed at one end of the top of the operating table (1), the support mechanism (3) is movably connected to the connecting frame (2), the clamping mechanism (4) is movably connected to the inside of the support mechanism (3), and the positioning mechanism (5) is locked inside the clamping mechanism (4). The support mechanism (3) includes an installation ring (31), a support bar (32), a plug rod (33), a connecting seat (34), a pull rod (35), a spring (36), a pressure seat (37), and a handle (38). The support bar (32) is fixedly installed at the bottom of one end of the installation ring (31). The plug rod (33) is inserted into the support bar (32). The connecting seat (34) is fixedly installed on the outside of the installation ring (31). The pull rod (35) is movably connected to one end of the connecting seat (34). The spring (36) is sleeved on the outside of the pull rod (35). The pressure seat (37) is fixedly installed at the end of the pull rod (35). The handle (38) is fixedly installed at the other end of the pull rod (35). The clamping mechanism (4) includes a placement plate (41), a support block (42), a screw (43), a knob (44), a clamping seat (45), a guide strip (46), and a connecting ring (47). The support block (42) is clamped inside the placement plate (41), the screw (43) is fixedly set on one side of the support block (42), the knob (44) is movably connected to the side of the placement plate (41), the clamping seat (45) is movably connected to the end of the knob (44), and the guide strip (46) is fixedly set on the outside of the clamping seat (45).

2. The auxiliary mechanism for welding the top sealing plate bracket of the muffler according to claim 1, characterized in that: The positioning mechanism (5) includes a pull plate (51), a connecting rod (52), a card holder (53), and a magnet (54). The connecting rod (52) is fixedly disposed on the outside of the pull plate (51), the card holder (53) is fixedly disposed on the bottom of the connecting rod (52), and the magnet (54) is fixed to the bottom of the pull plate (51).

3. The auxiliary mechanism for welding the top sealing plate bracket of the muffler according to claim 1, characterized in that: One end of the screw (43) passes through and extends to the outside of one side of the placement plate (41), and a fixing nut is provided on its surface. One end of the guide bar (46) passes through and extends to the outside of one side of the placement plate (41), and a guide hole that cooperates with it is opened on the side of the placement plate (41).

4. The auxiliary mechanism for welding the top sealing plate bracket of the muffler according to claim 1, characterized in that: The top of the operating table (1) is provided with a locking hole that cooperates with the support bar (32), and the surface of the support bar (32) is provided with a insertion hole that cooperates with the insertion rod (33). The two ends of the insertion rod (33) are locked on the top of the operating table (1).

5. The auxiliary mechanism for welding the top sealing plate bracket of the muffler according to claim 1, characterized in that: The connecting ring (47) and the mounting ring (31) are connected by a bearing. The bottom of the outer side of the connecting ring (47) is provided with a toothed groove, and the inner side of the pressure seat (37) is provided with a locking tooth that cooperates with it.

6. The auxiliary mechanism for welding the top sealing plate bracket of the muffler according to claim 1, characterized in that: The outer side of the mounting ring (31) is movably connected to the connecting frame (2) by a pin, and the bottom of the mounting ring (31) is in contact with the upper surface of the operating table (1).