An integrated welding fixture for a muffler shell and liner

Abstract

The utility model relates to the production technical field of muffler, disclose a kind of integrated welding tool of muffler shell and inner lining, including base, positioning clamping plate and telescopic sleeve, the positioning clamping plate equidistantly is provided with four, and positioning clamping plate is arc structure, the end position of positioning clamping plate is fixedly provided with limit stop, limit stop side is fixedly connected with mounting bracket, connecting rod is hingedly arranged on the mounting bracket, the base top is fixedly provided with mounting seat, the mounting seat one side rotation is installed with screw rod, the outer wall of screw rod is hingedly provided with horizontal moving support. The utility model can realize the positioning of different size muffler shell, when needing to weld muffler shell and inner lining of different diameter, only need to adjust the position of positioning clamping plate, so that positioning clamping plate is close to each other or away from each other, without replacing the positioning component of tool, can satisfy the welding demand of multiple size muffler, to improve production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of silencer manufacturing technology, specifically, it relates to an integrated welding fixture for a silencer shell and liner. Background Technology

[0002] A silencer is a noise reduction device used in airflow ducts that simultaneously transmit noise. It utilizes pipes with sound-absorbing linings, bends, or pipes with sudden changes in cross-sectional area or other discontinuous acoustic impedance to attenuate or reflect noise back into the duct. As a key component for reducing equipment noise, silencers are widely used in the automotive, construction machinery, and other fields. During the silencer's production process, the welding quality of the outer shell and inner lining directly determines the silencer's noise reduction effect and service life.

[0003] During the welding process, in order to ensure welding quality, positioning fixtures are usually used to position the muffler housing, thereby ensuring that the muffler housing is in a stable state. However, most current welding fixtures can only position muffler housings of a single diameter. When welding muffler housings and liners of different diameters, the positioning components of the fixture need to be replaced. The disassembly and installation process is cumbersome, time-consuming, and seriously reduces production efficiency.

[0004] In view of the above, this utility model is hereby proposed. Utility Model Content

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: An integrated welding fixture for a muffler housing and liner includes a base, positioning clamps, and a telescopic sleeve. Four positioning clamps are equidistantly arranged around the base, and each clamp has an arc-shaped structure. A limit plate is fixedly installed at the end of each positioning clamp. A mounting bracket is fixedly connected to one side of the limit plate, and a connecting rod is hinged to the mounting bracket. A mounting seat is fixedly installed on the top of the base, and a lead screw is rotatably mounted on one side of the mounting seat. A transverse support is screwed to the outer wall of the lead screw, and a fixing ring is fixedly installed on the outer wall of the transverse support. Equidistantly distributed connecting brackets are fixedly connected to the outer wall of the fixing ring. The end of the connecting rod is hinged to the connecting bracket. A protective housing is installed above the base, and a drive motor is installed inside the protective housing. The output shaft of the drive motor is connected to the end of the lead screw.

[0006] In a preferred embodiment of this utility model, a fixed bracket with a gate-shaped structure is fixedly provided on the top of the base, and three telescopic sleeves are provided at equal intervals. One end of the telescopic sleeve is connected to the fixed bracket, and the other end of the telescopic sleeve is connected to the outer wall of one side of the positioning clamp.

[0007] In a preferred embodiment of the present invention, a support sleeve is installed on the top of the base, and the top end of the support sleeve is connected to the bottom outer wall of the positioning clamp at the bottom position.

[0008] In a preferred embodiment of this utility model, a guide rail is installed on the top of the base, and a guide rod is fixedly provided at the bottom of the transverse support, with the bottom end of the guide rod slidably connected to the inner wall of the guide rail.

[0009] In a preferred embodiment of this utility model, a mounting plate is fixedly provided on the top of the base, and the protective shell is fixedly connected to the outer wall of one side of the mounting plate.

[0010] In a preferred embodiment of this utility model, the mounting base has a rectangular movable opening, and one of the connecting rods is located inside the rectangular movable opening.

[0011] Compared with the prior art, the present invention has the following advantages: This utility model, through the setting of positioning clamps, limiting plates, telescopic sleeves, mounting brackets, connecting rods, connecting frames, transverse supports, fixing rings, lead screws, and drive motors, can achieve the positioning of muffler shells of different sizes. When it is necessary to weld muffler shells and linings of different diameters, it is only necessary to adjust the position of the positioning clamps so that the positioning clamps are closer or farther apart. The positioning components of the tooling can meet the welding needs of mufflers of various sizes without changing them, which is conducive to improving production efficiency.

[0012] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0013] In the attached diagram: Figure 1 This is a schematic diagram of the main structure of an integrated welding fixture for a muffler shell and lining according to the present invention. Figure 2 This is a side view of the integrated welding fixture for a muffler shell and liner according to the present invention. Figure 3 This is a schematic diagram of the protective shell structure of an integrated welding fixture for a muffler shell and liner according to the present invention. Figure 4 This is a schematic diagram of the connection structure between the limiting plate and the fixing ring of an integrated welding fixture for a muffler shell and lining according to this utility model.

[0014] In the diagram: 1. Base; 2. Positioning clamp; 3. Limiting plate; 4. Fixed bracket; 5. Telescopic sleeve; 6. Mounting seat; 7. Lead screw; 8. Lateral support; 9. Guide rail; 10. Guide rod; 11. Fixing ring; 12. Mounting plate; 13. Protective shell; 14. Mounting bracket; 15. Connecting rod; 16. Connecting frame; 17. Drive motor; 18. Support sleeve. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0016] like Figures 1 to 4 As shown An integrated welding fixture for a muffler housing and liner includes a base 1, positioning clamps 2, and telescopic sleeves 5. Four positioning clamps 2 are equidistantly arranged in a circular pattern, and each clamp 2 has an arc-shaped structure. A gate-shaped fixing bracket 4 is fixedly mounted on the top of the base 1. Three telescopic sleeves 5 are equidistantly arranged, with one end connected to the fixing bracket 4 and the other end connected to the outer wall of one side of the positioning clamps 2. A support sleeve 18 is installed on the top of the base 1, with its top end connected to the bottom outer wall of the positioning clamps 2. A limit plate 3 is fixedly mounted at the end of the positioning clamps 2, and a mounting bracket 1 is fixedly connected to one side of the limit plate 3. 4. A connecting rod 15 is hinged to the mounting bracket 14. A mounting seat 6 is fixedly mounted on the top of the base 1. The mounting seat 6 has a rectangular movable opening, and one of the connecting rods 15 is located inside the rectangular movable opening. A lead screw 7 is rotatably mounted on one side of the mounting seat 6. A transverse support 8 is screwed to the outer wall of the lead screw 7. A guide rail 9 is mounted on the top of the base 1. A guide rod 10 is fixedly mounted on the bottom of the transverse support 8. The bottom end of the guide rod 10 is slidably connected to the inner wall of the guide rail 9. A fixing ring 11 is fixedly mounted on the outer wall of the transverse support 8. Equally spaced connecting frames 16 are fixedly connected to the outer wall of the fixing ring 11. The ends of the connecting rods 15 are hinged to the connecting frames 16. A protective outer shell 13 is provided on the top of the base 1. A mounting plate 12 is fixedly installed on the top of the base 1. The protective outer shell 13 is fixedly connected to the outer wall of one side of the mounting plate 12. A drive motor 17 is installed inside the protective outer shell 13. The output shaft of the drive motor 17 is connected to the end of the lead screw 7. When the drive motor 17 is started, it drives the lead screw 7 to rotate. The lead screw 7, in conjunction with the guide rail 9 and the guide rod 10, drives the transverse support 8 to move laterally. The transverse support 8 drives the fixing ring 11 to move laterally. The fixing ring 11 drives the connecting frame 16 to move. The connecting frame 16, in conjunction with the mounting frame 14, changes the tilt angle of the connecting rod 15. When the tilt angle of the connecting rod 15 changes, it can drive the limiting plates 3 to move closer together. At this time, the telescopic sleeve 5 and the support sleeve 18 are provided, so that the limiting plate 3 can drive the positioning clamps 2 to move closer together until all four positioning clamps 2 are in contact with the outer wall of the muffler shell, thereby realizing the positioning function of the muffler shell. It can also position muffler shells of different diameters. After the muffler shell is stabilized, the inner liner is placed inside the muffler shell, and then the muffler shell and the inner liner can be welded using welding equipment. The positioning parts of the tooling can meet the welding needs of mufflers of various sizes without changing them.

[0017] The implementation principle of the integrated welding fixture for the muffler housing and liner in this embodiment is as follows: In specific use, the muffler housing is placed on the positioning clamp 2 at the bottom position, and the muffler housing is pushed along the positioning clamp 2 until the end of the muffler housing contacts the limiting plate 3. Then, the drive motor 17 is started, causing the drive motor 17 to drive the lead screw 7 to rotate. The lead screw 7, together with the guide rail 9 and the guide rod 10, drives the transverse support 8 to move laterally. The transverse support 8 drives the fixing ring 11 to move laterally. The fixing ring 11 drives the connecting frame 16 to move. The connecting frame 16, together with the mounting frame... 14 causes the tilt angle of the connecting rod 15 to change. When the tilt angle of the connecting rod 15 changes, it can drive the limiting plates 3 to move closer together. At this time, the telescopic sleeve 5 and the support sleeve 18 are provided, so that the limiting plate 3 can drive the positioning clamps 2 to move closer together until all four positioning clamps 2 are in contact with the outer wall of the muffler housing, thereby realizing the positioning function of the muffler housing and being able to position muffler housings of different diameters. After the muffler housing is stabilized, the inner liner is placed inside the muffler housing, and then the muffler housing and the inner liner can be welded together using welding equipment.

Claims

1. An integrated welding fixture for a muffler housing and liner, comprising a base (1), a positioning clamp (2), and a telescopic sleeve (5), characterized in that, The positioning clamps (2) are arranged in four equidistant rings, and the positioning clamps (2) are arc-shaped. The end of the positioning clamps (2) is fixedly provided with a limiting plate (3). The limiting plate (3) is fixedly connected to one side of the mounting bracket (14). The mounting bracket (14) is hingedly provided with a connecting rod (15). The top of the base (1) is fixedly provided with a mounting seat (6). The mounting seat (6) is rotatably installed with a lead screw (7) on one side. The lead screw (7) is screwed to the outer wall of the lead screw (7). The outer wall of the lead screw (8) is fixedly provided with a fixing ring (11). The outer wall of the fixing ring (11) is fixedly connected with an equidistant connecting frame (16). The end of the connecting rod (15) is hinged to the connecting frame (16). The base (1) is provided with a protective shell (13). The inner side of the protective shell (13) is installed with a drive motor (17). The output shaft of the drive motor (17) is connected to the end of the lead screw (7).

2. The integrated welding fixture for a muffler housing and liner according to claim 1, characterized in that, The base (1) is fixedly provided with a door-shaped fixed bracket (4) at the top. Three telescopic sleeves (5) are provided at equal intervals. One end of the telescopic sleeve (5) is connected to the fixed bracket (4), and the other end of the telescopic sleeve (5) is connected to the outer wall of the positioning clamp (2).

3. The integrated welding fixture for a muffler housing and liner according to claim 1, characterized in that, The base (1) is equipped with a support sleeve (18) on its top, and the top end of the support sleeve (18) is connected to the bottom outer wall of the positioning clamp (2) at the bottom position.

4. The integrated welding fixture for a muffler housing and liner according to claim 1, characterized in that, The base (1) is equipped with a guide rail (9) on top, and the bottom of the transverse support (8) is fixedly provided with a guide rod (10), the bottom end of which is slidably connected to the inner wall of the guide rail (9).

5. The integrated welding fixture for a muffler housing and liner according to claim 1, characterized in that, The base (1) is fixedly provided with an installation plate (12) on the top, and the protective shell (13) is fixedly connected to the outer wall of one side of the installation plate (12).

6. The integral welding fixture for a muffler housing and liner according to claim 1, characterized in that, The mounting base (6) has a rectangular movable opening, and one of the connecting rods (15) is located inside the rectangular movable opening.

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