An automatic welding machine for circumferential seams of motorcycle muffler housings

Abstract

This invention provides an automatic circumferential welding machine for motorcycle muffler housings, relating to the field of motorcycle muffler welding technology. It includes a base, with a first side frame and a second side frame fixedly connected to the top of the base. The first side frame includes two vertical sidewalls, each rotatably connected to an opening clamping assembly on its inner side, and a support frame fixedly connected to its upper end. A height adjustment assembly is provided on the inner side of the support frame, and a welding head is fixedly installed at the output end of the height adjustment assembly. An opening external gear ring is fixedly connected to the opening clamping assembly on the outer side, and the opening position of the opening external gear ring corresponds to the opening position of the opening clamping assembly. Through the sliding and fixed connecting shaft and slide, the lower and upper clamps on the fixed base clamp the end of the motorcycle muffler housing away from the weld seam and adjust its position, facilitating pre-alignment with the other part of the housing, improving the alignment of the circumferential seam, and enhancing the welding effect.

Description

Technical Field

[0001] This invention relates to the field of motorcycle muffler welding technology, specifically to an automatic welding machine for the circumferential seam of a motorcycle muffler housing. Background Technology

[0002] During motorcycle operation, the engine produces high-temperature, high-pressure exhaust gas, which generates significant noise when directly expelled. The muffler absorbs sound waves through its internal porous materials (such as ceramic fibers and metal wool), converting sound energy into heat energy, thus effectively reducing noise. Furthermore, the muffler's internal reflectors, baffles, and resonant cavities can block, decompose, and interfere with sound waves, causing opposing sound waves to meet and cancel each other out, further attenuating exhaust noise.

[0003] During the welding process, the two ends of the motorcycle muffler housing need to be clamped and the weld seams to be welded need to be aligned. However, the weights on both sides are different. Therefore, due to the difference in clamping force on the housing during the welding process, the local deformation at the clamping point is uneven, which increases the difficulty of welding and sealing and reduces the welding strength. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides an automatic welding machine for the circumferential seam of a motorcycle muffler housing, which solves the problem of welding defects caused by uneven weight distribution on both sides during motorcycle muffler housing welding.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: an automatic welding machine for circumferential seams of motorcycle muffler housings, comprising a base, with a side frame one and a side frame two fixedly connected above the base. The side frame one includes two vertical sidewalls, each rotatably connected to an opening clamping assembly on its inner side, and a support frame fixedly connected at its upper end. A height adjustment assembly is provided on the inner side of the support frame, and a welding head is fixedly installed at the output end of the height adjustment assembly. An opening external gear ring is fixedly connected to the opening clamping assembly on the outer side, and the opening position of the opening external gear ring corresponds to the opening position of the opening clamping assembly. Pins are slidably arranged at the opening clamping assembly and the opening external gear ring. The inner side of the second side frame is rotatably connected to a connecting shaft, and the inner side of the connecting shaft is slidably connected to a slide. The side of the slide facing the first side frame is fixedly connected to a fixed seat. The fixed seat is fixedly connected to a lower clamp and a screw. The outer side of the screw is slidably provided with an upper clamp. The lower side of the upper clamp is fixedly connected to a guide rod. The guide rod is slidably connected to the fixed seat. The connecting shaft and the slide are fixed by bolts and nuts. Synchronous drive components are provided at the connecting shaft and the open external gear ring.

[0006] Preferably, the height adjustment assembly includes a slider that is slidably connected to the support frame, an adjustment rod that is rotatably connected to the upper side of the slider, the adjustment rod that is rotatably connected to the upper side wall of the support frame, and the welding head that is fixed to the slider.

[0007] Preferably, the open clamping assembly includes an open guide ring rotatably connected to one side wall of the side frame, and the open guide ring is threaded with a set of clamping rods distributed radially.

[0008] Preferably, a spring is sleeved on the outer side of the screw, the spring is fixedly connected to the fixing seat and the upper clamping seat, and a nut is provided on the outer side of the screw above the upper clamping seat.

[0009] Preferably, the inner side of the side frame is rotatably connected to two gears, both of which mesh with the open external gear ring, and the spacing between the gears is greater than the opening width of the open external gear ring.

[0010] Preferably, the synchronous drive assembly includes a motor and a rotating shaft. The two ends of the rotating shaft are rotatably connected to side frame one and side frame two. The motor is fixedly connected to the side of side frame one away from side frame two. Belt drive assemblies are provided on the connecting shaft and the rotating shaft, as well as on the mounting shaft and the rotating shaft of one of the gears.

[0011] Preferably, the belt drive assembly is fixed by pulleys and belts, and pulleys are fixedly connected to both ends of the connecting shaft, the rotating shaft, and the mounting shaft of one of the gears. Belts are respectively provided on the outside of the pulleys located in side frame one and side frame two.

[0012] Preferably, the mating surfaces of the lower clamp and the upper clamp after they are fitted together coincide with the axes of the open external gear ring, the connecting shaft, and the open guide ring.

[0013] (III) Beneficial Effects This invention provides an automatic welding machine for the circumferential seam of a motorcycle muffler housing. It has the following advantages: 1. In this invention, the sliding fixed connecting shaft and the slide cooperate to achieve the clamping and position adjustment of the lower clamp and upper clamp on the fixed seat on the end of the motorcycle muffler housing away from the weld, which facilitates the pre-alignment with the other part of the housing, improves the alignment degree of the circumferential seam, and improves the welding effect.

[0014] 2. In this invention, the rotation of the gear-supported open external gear ring and the open clamping assembly, as well as the synchronous rotation of the lower clamp and the upper clamp, are realized through the synchronous drive component, so as to prevent the misalignment of the circumferential seam caused by the uneven gravity of the muffler housing during the rotation process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2This is a side view of the present invention; Figure 3 For the present invention in Figure 1 A structural diagram from another perspective; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 for Figure 3 Enlarged view at point B in the middle; Figure 6 This is a schematic diagram of the connection between the connecting shaft and the carriage in this invention; Figure 7 This is a schematic diagram of the belt drive assembly in this invention.

[0016] The components are as follows: 1. Side frame one; 2. Gear; 3. Peg; 4. Open external gear ring; 5. Open guide ring; 6. Clamping rod assembly; 7. Support frame; 8. Adjusting rod; 9. Slider; 10. Welding head; 11. Spring; 12. Screw; 13. Upper clamp; 14. Connecting shaft; 15. Slide; 16. Fixed seat; 17. Side frame two; 18. Rotating shaft; 19. Motor; 20. Belt; 21. Guide rod; 22. Lower clamp; 23. Pulley. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] like Figure 1-7As shown, this embodiment of the invention provides an automatic welding machine for the circumferential seam of a motorcycle muffler housing, including a base. A side frame 1 and a side frame 2 17 are fixedly connected to the top of the base. The base has mounting holes on the sides of the side frames 1 and 2 17 that are far apart from each other. Bolts are used through the mounting holes to fix the base to the ground where pre-embedded nuts are inserted, thus fixing the base to the ground. The side frame 1 includes two vertical sidewalls, each rotatably connected to an open clamping assembly on its inner side, and a support frame 7 is fixedly connected to its upper end. The open clamping assembly includes an open guide ring 5 rotatably connected to the sidewall of the side frame 1. The upper thread is connected to a clamping rod assembly 6 distributed radially. Specifically, the clamping rod assembly 6 includes an arc-shaped clamping block and an adjusting knob. The adjusting knob is threadedly connected to the open guide ring 5. The arc-shaped clamping block and the adjusting knob are rotatably connected. By rotating the adjusting knob, the arc-shaped clamping block is driven to clamp the motorcycle muffler housing. Specifically, the arc-shaped clamping block needs to be gripped and pressed against the surface of the motorcycle muffler housing for clamping. Alternatively, a guide rod can be fixed on the open guide ring 5 and connected to the arc-shaped clamping block to guide the movement of the arc-shaped clamping block. The movement distance of the arc-shaped clamping block can be controlled by adjusting the number of clamping rotations of each adjusting knob, thereby controlling the clamping force on the surface of the motorcycle muffler housing. A height adjustment assembly is provided on the inner side of the support frame 7. A welding head 10 is fixedly installed at the output end of the height adjustment assembly. Specifically, the height adjustment assembly includes a slider 9 that is slidably connected to the support frame 7. An adjustment rod 8 is rotatably connected to the upper side of the slider 9. The adjustment rod 8 is rotatably connected to the upper side wall of the support frame 7. The welding head 10 is fixed to the slider 9. By rotating the adjustment rod 8, the slider 9 slides up and down along the support frame 7, thereby allowing the welding head 10 to approach the circumferential seam of the motorcycle muffler housing. An external gear ring 4 is fixedly connected to the outer opening clamping assembly. The opening position of the external gear ring 4 corresponds to the opening position of the opening clamping assembly. Pins 3 are slidably arranged at the opening clamping assembly and the external gear ring 4. Specifically, two insertion holes are provided on both the opening guide ring 5 and the external gear ring 4. Pins 3 are inserted into the corresponding insertion holes of the opening guide ring 5 on both sides of the external gear ring 4 to achieve synchronous rotation of the opening guide ring 5 and the external gear ring 4. When the pins 3 move quickly to below the welding head 10, the pins 3 are pulled out and reinserted after rotating past the position below the welding head 10 to prevent the pins 3 from interfering with the welding of the welding head 10. A connecting shaft 14 is rotatably connected to the inner side of the second side frame 17. The connecting shaft 14 extends from the side facing the first side frame 1 and has a groove in the middle. A slide 15 is slidably connected to the inner side of the groove of the connecting shaft 14. A fixed seat 16 is fixedly connected to the side of the slide 15 facing the first side frame 1. A lower clamp 22 and a screw 12 are fixedly connected to the fixed seat 16. An upper clamp 13 is slidably provided on the outer side of the screw 12. A guide rod 21 is fixedly connected to the lower side of the upper clamp 13. The guide rod 21 is slidably connected to the fixed seat 16. The connecting shaft 14 and the slide 15 are fixed by bolts and nuts. In the above, the upper clamp 13 and the lower clamp 22 cooperate to clamp the longer end of the motorcycle muffler housing that is far from the welding position. By adjusting the relative position of the connecting shaft 14 and the slide 15 and fixing them with bolts and nuts, the axial position of the welded end of the motorcycle muffler housing can be changed, so that the housing axes on both sides of the circumferential seam can be aligned. A synchronous drive assembly is provided at the connecting shaft 14 and the open external gear ring 4.

[0019] A spring 11 is sleeved on the outer side of the screw 12. The spring 11 is fixedly connected to the fixed seat 16 and the upper clamp 13. A nut 2 is provided on the outer side of the screw 12 above the upper clamp 13. In the above, the spring 11 pushes the upper clamp 13 away from the lower clamp 22, thereby realizing the relative opening of the lower clamp 22 and the upper clamp 13, which facilitates clamping the longer end of the motorcycle muffler housing that is far from the welding position. After pushing the upper clamp 13 down and tightening it with the nut 2, the longer end of the motorcycle muffler housing that is far from the welding position is clamped. During the process, the rotation of the upper clamp 13 is restricted by the guide rod 21, which facilitates the upper clamp 13 and the lower clamp 22 to move up and down in alignment. In addition, the mating surface of the lower clamp 22 and the upper clamp 13 after they are mated coincides with the axis of the open external gear ring 4, the connecting shaft 14 and the open guide ring 5, which facilitates the alignment of the two parts of the motorcycle muffler housing.

[0020] The inner side of the side frame 1 is rotatably connected to two gears 2, both of which mesh with the open external gear ring 4. The spacing between the gears 2 is greater than the opening width of the open external gear ring 4.

[0021] The synchronous drive assembly includes a motor 19 and a rotating shaft 18. Both ends of the rotating shaft 18 are rotatably connected to side frame 1 and side frame 2 17. The motor 19 is fixedly connected to the side of side frame 1 away from side frame 2 17. Belt drive assemblies are provided on the connecting shaft 14, the rotating shaft 18, the mounting shaft of one of the gears 2, and the rotating shaft 18. The belt drive assemblies are fixed by pulleys 23 and belts 20. Pulleys 23 are fixedly connected to both ends of the connecting shaft 14, the rotating shaft 18, and the mounting shaft of one of the gears 2. Pulleys 23 are located within side frame 1 and side frame 2 17. 3. Belts 20 are respectively installed on the outer side. After the motor 19 drives the rotating shaft 18 to rotate, the rotating shaft 18 drives the pulley 23 connected to it to rotate, thereby realizing the rotation of the connecting shaft 14 and the mounting shaft by the belt 20. In this way, the connecting shaft 14 drives the slide 15, which in turn drives the fixed seat 16 to drive the upper clamp 13 and the lower clamp 22 to rotate. After the mounting shaft rotates, it drives the gear connected to it to drive the open external gear ring 4 to rotate, thereby realizing the rotation of the open guide ring 5 and the clamping rod assembly 6, and thus realizing the rotation of the motorcycle muffler housing. With the help of the welding head 10, circumferential seam welding is achieved.

[0022] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic welding machine for circumferential seams of motorcycle muffler housings, comprising a base, wherein a first side frame (1) and a second side frame (17) are fixedly connected above the base, characterized in that: The side frame (1) includes two vertical side walls, each of which is rotatably connected to an opening clamping assembly on its inner side, and a support frame (7) is fixedly connected at its upper end. A height adjustment assembly is provided on the inner side of the support frame (7), and a welding head (10) is fixedly installed at the output end of the height adjustment assembly. An opening external gear ring (4) is fixedly connected to the opening clamping assembly on the outer side. The opening external gear ring (4) corresponds to the opening position of the opening clamping assembly. Pins (3) are slidably provided at the opening clamping assembly and the opening external gear ring (4). The inner side of the second side frame (17) is rotatably connected to a connecting shaft (14), and the inner side of the connecting shaft (14) is slidably connected to a slide (15). The slide (15) is fixedly connected to a fixed seat (16) on the side facing the first side frame (1). The fixed seat (16) is fixedly connected to a lower clamp (22) and a screw (12). The outer side of the screw (12) is slidably provided with an upper clamp (13). The lower side of the upper clamp (13) is fixedly connected to a guide rod (21). The guide rod (21) is slidably connected to the fixed seat (16). The connecting shaft (14) and the slide (15) are fixed by bolts and nuts. Synchronous drive components are provided at the connecting shaft (14) and the open external gear ring (4).

2. The automatic welding machine for circumferential seams of a motorcycle muffler housing according to claim 1, characterized in that: The height adjustment assembly includes a slider (9) that is slidably connected to the support frame (7). An adjustment rod (8) is rotatably connected to the upper side of the slider (9). The adjustment rod (8) is rotatably connected to the upper side wall of the support frame (7). The welding head (10) is fixed to the slider (9).

3. The automatic welding machine for circumferential seams of a motorcycle muffler housing according to claim 2, characterized in that: The open clamping assembly includes an open guide ring (5) rotatably connected to the side wall of the side frame (1), and a set of clamping rods (6) distributed radially are threaded onto the open guide ring (5).

4. The automatic welding machine for circumferential seams of a motorcycle muffler housing according to claim 3, characterized in that: A spring (11) is sleeved on the outside of the screw (12). The spring (11) is fixedly connected to the fixed seat (16) and the upper clamp (13). A nut is provided on the outer side of the screw (12) above the upper clamp (13).

5. The automatic welding machine for circumferential seams of a motorcycle muffler housing according to claim 4, characterized in that: The inner side of the side frame (1) is rotatably connected to two gears (2), both of which mesh with the open external gear ring (4). The distribution spacing of the gears (2) is greater than the opening width of the open external gear ring (4).

6. The automatic welding machine for circumferential seams of a motorcycle muffler housing according to claim 5, characterized in that: The synchronous drive assembly includes a motor (19) and a rotating shaft (18). The two ends of the rotating shaft (18) are rotatably connected to side frame one (1) and side frame two (17). The motor (19) is fixedly connected to the side of side frame one (1) away from side frame two (17). Belt drive assemblies are provided on the connecting shaft (14) and the rotating shaft (18), as well as on the mounting shaft of one of the gears (2) and the rotating shaft (18).

7. An automatic welding machine for circumferential seams of a motorcycle muffler housing according to claim 6, characterized in that: The belt drive assembly is fixed by pulleys (23) and belts (20). The pulleys (23) are fixedly connected to both ends of the connecting shaft (14), the rotating shaft (18), and the mounting shaft of one of the gears (2). Belts (20) are respectively set on the outside of the pulleys (23) in the side frame one (1) and the side frame two (17).

8. The automatic welding machine for circumferential seams of a motorcycle muffler housing according to claim 1, characterized in that: The mating surfaces of the lower clamp (22) and the upper clamp (13) after they are fitted together coincide with the axes of the open external gear ring (4), the connecting shaft (14), and the open guide ring (5).

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