An automatic welding tool for muffler

Abstract

The application discloses an automatic welding tool for muffler, and belongs to the technical field of welding tools, which comprises a main mechanism for adjusting the welding position, a clamping mechanism for clamping the muffler to be welded and a welding mechanism for welding the muffler, which are arranged on the main mechanism; the main mechanism cooperates with the welding mechanism to realize the up-down and left-right movement of the welding gun, so that the welding gun can move along the welding seam to be welded, and the welding precision is high; the clamping mechanism can clamp the side surface and the top surface of the muffler to be welded, so that the muffler can be kept stable during welding, and the welding precision is improved; the welding mechanism can automatically and continuously feed the welding rod during welding, so that the welding rod can be continuously supplied during welding, and the welding interruption caused by the lack of welding rod can be avoided, and the welding quality is ensured.

Description

Technical Field

[0001] This invention relates to the field of welding fixture technology, and in particular to an automated welding fixture for mufflers. Background Technology

[0002] Automated welding fixtures for mufflers are primarily used for welding operations during the muffler production process. Through automated equipment and precise fixture design, they improve welding efficiency, ensure welding quality, reduce human error, and adapt to large-scale production needs. The key to automated welding fixtures for mufflers lies in improving welding precision and production efficiency, while also being able to handle mufflers of different shapes and sizes. The application of automated welding technology and intelligent control systems not only significantly improves production efficiency but also ensures consistent welding quality and reduces errors caused by human intervention. Existing automated welding fixtures for mufflers typically cannot automatically add welding rods, potentially leading to welding interruptions. Summary of the Invention

[0003] To address the aforementioned technical problems, the present invention adopts the following technical solution: an automated welding fixture for mufflers, comprising a main body mechanism for adjusting the welding position, the main body mechanism comprising a base frame, and a clamping mechanism for clamping the muffler to be welded and a welding mechanism for welding the muffler. The main structure includes a column fixedly installed on the base frame, and a lifting ring is slidably installed on the column.

[0004] Furthermore, the main structure also includes a top plate fixedly installed on the column, a top motor fixedly installed on the top plate, a vertical lead screw rotatably installed on the top plate, the vertical lead screw rotatably installed with the base frame, and the lifting ring and the vertical lead screw forming a threaded transmission.

[0005] Furthermore, a fan is rotatably mounted on the top plate, and a top motor drives the fan and the lead screw to rotate via a transmission belt.

[0006] The top motor drives the fan and the vertical screw to rotate via belt drive. The rotation of the vertical screw causes the lifting ring to rise and fall along the column, while the fan rotates to cool the area below.

[0007] Furthermore, the clamping mechanism includes a bottom motor fixedly installed below the base frame, a clamping shell fixedly installed on the base frame, a central shaft rotatably installed on the base frame, the bottom motor driving the central shaft to rotate via belt drive, a central rotating block fixedly installed on the central shaft, four clamping blocks slidably installed on the base frame, clamping posts fixedly installed on the clamping blocks, a pull rod rotatably installed on the central rotating block, the pull rod being rotatably installed with the clamping blocks, and the clamping posts being slidably installed with the clamping shell.

[0008] Furthermore, a vertical rack is fixedly installed on the base frame, a lifting block is slidably installed on the vertical rack, a spring is provided between the lifting block and the vertical rack, a guide gear is rotatably installed on the lifting block, the guide gear meshes with the vertical rack, a lower pressure plate is fixedly installed on the lifting block, an upper pressure plate is slidably installed on the lower pressure plate, and a pressure plate spring is provided between the upper pressure plate and the lower pressure plate.

[0009] Furthermore, a winding drum is rotatably mounted on the base frame, and a pull rope is wound around the winding drum. The other end of the pull rope is fixedly installed to the lifting block, and the central shaft drives the winding drum to rotate through belt drive and gear drive.

[0010] In use, place the muffler to be welded onto the clamping shell, positioned between the four clamping posts. Place another muffler to be welded onto the muffler on the clamping shell and adjust the welding position. The bottom motor drives the central shaft to rotate via a transmission belt. The central shaft drives the winding drum to rotate via belt drive and gear drive. The winding drum winds up the pull rope, thereby causing the lifting block, lower pressure plate, and upper pressure plate to descend. This causes the upper pressure plate to press the upper muffler to be welded onto the lower muffler to be welded. At the same time, the central shaft drives the central rotating block to rotate, thereby causing the four clamping blocks and clamping posts to move inward via the pull rod. The clamping posts clamp the lower muffler. When the upper pressure plate contacts the upper muffler, the lower pressure plate continues to descend, causing the pressure plate spring to be compressed. When the clamping posts clamp the lower muffler, the pressure plate spring is in a compressed state.

[0011] Furthermore, the welding mechanism includes a movable frame slidably mounted on a lifting ring, a movable motor fixedly mounted on the movable frame, a roller fixedly mounted on the motor shaft of the movable motor, the roller rolling along the lifting ring, an extension frame slidably mounted on the movable frame, a welding torch fixedly mounted on the extension frame, and an electric cylinder fixedly mounted on the movable frame, the output end of the electric cylinder being fixedly mounted to the extension frame.

[0012] Furthermore, a welding rod holder is fixedly installed on the extension frame, a welding rod nozzle is fixedly installed on the welding rod holder, a feeding rod holder is fixedly installed on the welding rod holder, a pusher plate is slidably installed on the feeding rod holder, and a feeding spring is provided between the pusher plate and the feeding rod holder.

[0013] Furthermore, an ejector post is slidably mounted on the electrode holder, a rack is fixedly mounted on the ejector post, an ejector spring is provided between the ejector post and the electrode holder, an electrode motor is fixedly mounted on the electrode holder, a half-tooth gear is fixedly mounted on the motor shaft of the electrode motor, the half-tooth gear meshes with the rack, and an ejector plate is fixedly mounted below the ejector post, the ejector plate being slidably mounted on the electrode holder.

[0014] The electric cylinder extends and retracts, causing the extension frame to slide relative to the moving frame, allowing the welding torch to reach the welding position. The lifting ring adjusts the vertical position, and the moving motor rotates, driving the rollers to rotate, thus causing the moving frame to slide around the lifting ring in conjunction with welding. During use, multiple welding rods are placed on the welding rod holder, and the push plate holds the multiple welding rods tightly within the holder, with only one welding rod positioned in front of the push plate. During welding, the welding rod motor drives the half-tooth gear to rotate, which in turn drives the rack, push column, and push plate to push the welding rod in front of the push plate out of the welding rod opening. The push spring is stretched. As welding progresses, the welding rod is continuously consumed, and the push plate prevents subsequent welding rods from entering the welding rod holder. When the welding rod is used up, the half-tooth gear disengages from the rack, the push spring rebounds, and the push plate returns to its initial position. The feed spring then pushes the next welding rod into the welding rod holder through the push plate, and the welding rod reaches the front of the push plate. This process is repeated to achieve continuous feeding of welding rods.

[0015] The beneficial effects of this invention compared with the prior art are: (1) The main body mechanism and the welding mechanism of this invention can move the welding gun up and down and left and right, so that the welding gun can move along the weld seam to be welded, and the welding accuracy is high; (2) The clamping mechanism of this invention can support the side and top of the silencer to be welded, so that the silencer remains stable during welding and the welding accuracy is improved; (3) When the welding mechanism of this invention is welding, the welding rod can be automatically and continuously fed in, so that the welding rod will not be insufficient during welding, thus preventing the welding from being interrupted and ensuring the welding quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the main structure of the present invention.

[0018] Figure 3 This is a schematic diagram of the clamping mechanism of the present invention. Figure 1 .

[0019] Figure 4 This is a schematic diagram of the clamping mechanism of the present invention. Figure 2 .

[0020] Figure 5 This is a schematic diagram of the clamping mechanism of the present invention. Figure 3 .

[0021] Figure 6 This is a schematic diagram of the welding mechanism structure of the present invention. Figure 1 .

[0022] Figure 7 This is a schematic diagram of the welding mechanism structure of the present invention. Figure 2 .

[0023] Figure 8 This is a schematic diagram of the welding mechanism structure of the present invention. Figure 3 .

[0024] Reference numerals: 101-Base frame; 102-Top plate; 103-Top motor; 104-Fan; 105-Screw rod; 106-Lifting ring; 107-Column; 201-Clamping shell; 202-Rack; 203-Guide gear; 204-Bottom motor; 205-Central shaft; 206-Central rotating block; 207-Pull rod; 208-Clamping block; 209-Clamping column; 210-Rewinding drum; 211-Pull rope; 212-Lifting block; 213 214-Lower pressure plate; 215-Upper pressure plate; 301-Pressure plate spring; 302-Moving frame; 303-Moving motor; 304-Roller; 305-Electric cylinder; 306-Extend frame; 307-Welding torch; 308-Welding rod holder; 309-Half gear; 310-Welding rod nozzle; 311-Rack; 312-Ejection column; 313-Ejection spring; 314-Infeed spring; 315-Infeed frame; 316-Push plate; 317-Ejection plate. Detailed Implementation

[0025] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0026] Example: Reference Figures 1-8 An automated welding fixture for a muffler includes a main body mechanism for adjusting the welding position. The main body mechanism includes a base frame 101, and is provided with a clamping mechanism for clamping the muffler to be welded and a welding mechanism for welding the muffler. The main structure includes a column 107 fixedly installed on the base frame 101, and a lifting ring 106 is slidably installed on the column 107.

[0027] like Figure 2 As shown, the main structure also includes a top plate 102 fixedly installed on the column 107, a top motor 103 fixedly installed on the top plate 102, a vertical screw 105 rotatably installed on the top plate 102, the vertical screw 105 rotatably installed with the base frame 101, and the lifting ring 106 and the vertical screw 105 form a threaded transmission.

[0028] like Figure 2 As shown, a fan 104 is rotatably mounted on the top plate 102, and the top motor 103 drives the fan 104 and the lead screw 105 to rotate via a transmission belt.

[0029] The top motor 103 drives the fan 104 and the vertical lead screw 105 to rotate via belt drive. The rotation of the vertical lead screw 105 drives the lifting ring 106 to rise and fall along the column 107, while the fan 104 rotates to dissipate heat below.

[0030] like Figures 3-5 As shown, the clamping mechanism includes a bottom motor 204 fixedly installed below the base frame 101, a clamping shell 201 fixedly installed on the base frame 101, a central shaft 205 rotatably installed on the base frame 101, the bottom motor 204 drives the central shaft 205 to rotate via belt drive, a central rotating block 206 is fixedly installed on the central shaft 205, four clamping blocks 208 are slidably installed on the base frame 101, clamping posts 209 are fixedly installed on the clamping blocks 208, a pull rod 207 is rotatably installed on the central rotating block 206, the pull rod 207 is rotatably installed with the clamping blocks 208, and the clamping posts 209 are slidably installed with the clamping shell 201.

[0031] like Figures 3-5 As shown, a vertical rack 202 is fixedly installed on the base frame 101, a lifting block 212 is slidably installed on the vertical rack 202, a spring is provided between the lifting block 212 and the vertical rack 202, a guide gear 203 is rotatably installed on the lifting block 212, the guide gear 203 meshes with the vertical rack 202, a lower pressure plate 213 is fixedly installed on the lifting block 212, an upper pressure plate 214 is slidably installed on the lower pressure plate 213, and a pressure plate spring 215 is provided between the upper pressure plate 214 and the lower pressure plate 213.

[0032] like Figures 3-5 As shown, a take-up drum 210 is rotatably mounted on the base frame 101, and a pull rope 211 is wound on the take-up drum 210. The other end of the pull rope 211 is fixedly installed to the lifting block 212. The central shaft 205 drives the take-up drum 210 to rotate through belt drive and gear drive.

[0033] In use, place the muffler to be welded onto the clamping housing 201, positioned between the four clamping posts 209. Place another muffler to be welded onto the muffler located on the clamping housing 201, and adjust the welding position. The bottom motor 204 drives the central shaft 205 to rotate via a transmission belt. The central shaft 205 drives the winding drum 210 to rotate via belt drive and gear drive. The winding drum 210 winds up the pull rope 211, thereby causing the lifting block 212, the lower pressure plate 213, and the upper pressure plate 214 to descend, causing the upper... The pressure plate 214 presses the upper muffler to be welded onto the lower muffler to be welded. At the same time, the central shaft 205 drives the central rotating block 206 to rotate, thereby driving the four clamping blocks 208 and clamping columns 209 to move inward through the pull rod 207. The clamping columns 209 clamp the lower muffler. After the upper pressure plate 214 contacts the upper muffler, the lower pressure plate 213 continues to descend, causing the pressure plate spring 215 to be compressed. When the clamping columns 209 clamp the lower muffler, the pressure plate spring 215 is in a compressed state.

[0034] like Figures 6-8As shown, the welding mechanism includes a movable frame 301 slidably mounted on a lifting ring 106, a movable motor 302 fixedly mounted on the movable frame 301, a roller 303 fixedly mounted on the motor shaft of the movable motor 302, the roller 303 rolling along the lifting ring 106, an extension frame 305 slidably mounted on the movable frame 301, a welding torch 306 fixedly mounted on the extension frame 305, and an electric cylinder 304 fixedly mounted on the movable frame 301, the output end of the electric cylinder 304 being fixedly mounted to the extension frame 305.

[0035] like Figures 6-8 As shown, a welding rod holder 307 is fixedly installed on the extension frame 305, a welding rod nozzle 310 is fixedly installed on the welding rod holder 307, a feeding rod holder 315 is fixedly installed on the welding rod holder 307, a pusher plate 316 is slidably installed on the feeding rod holder 315, and a feeding spring 314 is provided between the pusher plate 316 and the feeding rod holder 315.

[0036] like Figures 6-8 As shown, an ejector post 312 is slidably mounted on the electrode holder 307, a rack 311 is fixedly mounted on the ejector post 312, an ejector spring 313 is provided between the ejector post 312 and the electrode holder 307, an electrode motor 308 is fixedly mounted on the electrode holder 307, a half-tooth gear 309 is fixedly mounted on the motor shaft of the electrode motor 308, the half-tooth gear 309 meshes with the rack 311, and an ejector plate 317 is fixedly mounted below the ejector post 312, and the ejector plate 317 is slidably mounted on the electrode holder 307.

[0037] The electric cylinder 304 extends and retracts, causing the extension frame 305 to slide relative to the moving frame 301, allowing the welding torch 306 to reach the welding position. The lifting ring 106 adjusts the vertical position, and the moving motor 302 rotates, driving the roller 303 to rotate, thus causing the moving frame 301 to slide around the lifting ring 106 for welding. During use, multiple welding rods are placed on the welding rod holder 307, and the pusher plate 316 holds the rods firmly within the holder, with only one rod positioned in front of the pusher plate 317. During welding, the welding rod motor 308 drives the half-gear 309 to rotate, thereby driving the rack. 311. The ejector post 312 and ejector plate 317 eject the welding rod in front of the ejector plate 317 from the welding rod opening 310. The ejector spring 313 is stretched. As welding progresses, the welding rod is continuously consumed. The ejector plate 317 blocks the subsequent welding rod from entering the welding rod holder 307. When the welding rod is used up, the half gear 309 disengages from the rack 311, and the ejector spring 313 rebounds, causing the ejector plate 317 to return to its initial position. The feed spring 314 pushes the next welding rod into the welding rod holder 307 through the pusher plate 316. The welding rod reaches the front of the ejector plate 317. This process is repeated to achieve continuous feeding of the welding rod.

[0038] The working principle of the automated welding fixture for mufflers disclosed in this invention is as follows: The top motor 103 drives the fan 104 and the vertical lead screw 105 to rotate via belt drive. The rotation of the vertical lead screw 105 drives the lifting ring 106 to rise and fall along the column 107. At the same time, the fan 104 rotates to dissipate heat below. In use, the muffler to be welded is placed on the clamping shell 201, located between the four clamping columns 209. Another muffler to be welded is placed on the muffler located on the clamping shell 201, and the welding position is adjusted. The bottom motor 204 drives the central shaft 205 to rotate via the transmission belt. The central shaft 205 drives the winding drum 210 to rotate via belt drive and gear drive. The winding drum 210 winds up the pull rope 211, thereby driving the lifting block 212, the lower pressure plate 213, and the upper pressure plate 214 to descend, so that the upper... The pressure plate 214 presses the upper muffler to be welded onto the lower muffler to be welded. At the same time, the central shaft 205 drives the central rotating block 206 to rotate, thereby driving the four clamping blocks 208 and clamping columns 209 to move inward through the pull rod 207. The clamping columns 209 clamp the lower muffler. After the upper pressure plate 214 contacts the upper muffler, the lower pressure plate 213 continues to descend, causing the pressure plate spring 215 to be compressed. When the clamping columns 209 clamp the lower muffler, the pressure plate spring 215 is in a compressed state. The electric cylinder 304 extends and retracts, causing the extension frame 305 to slide relative to the moving frame 301, allowing the welding torch 306 to reach the welding position. The lifting ring 106 adjusts the vertical position, and the moving motor 302 rotates, driving the roller 303 to rotate, thus causing the moving frame 301 to slide around the lifting ring 106 for welding. During use, multiple welding rods are placed on the welding rod holder 307, and the pusher plate 316 holds the rods firmly within the holder, with only one rod positioned in front of the pusher plate 317. During welding, the welding rod motor 308 drives the half-gear 309 to rotate, thereby driving the rack. 311. The ejector post 312 and ejector plate 317 eject the welding rod in front of the ejector plate 317 from the welding rod opening 310. The ejector spring 313 is stretched. As welding progresses, the welding rod is continuously consumed. The ejector plate 317 blocks the subsequent welding rod from entering the welding rod holder 307. When the welding rod is used up, the half gear 309 disengages from the rack 311, and the ejector spring 313 rebounds, causing the ejector plate 317 to return to its initial position. The feed spring 314 pushes the next welding rod into the welding rod holder 307 through the pusher plate 316. The welding rod reaches the front of the ejector plate 317. This process is repeated to achieve continuous feeding of the welding rod.

[0039] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the present invention based on the technical solution and inventive concept of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An automated welding fixture for mufflers, comprising a main body mechanism for adjusting the welding position, characterized in that: The main body includes a base frame (101), and the main body is provided with a clamping mechanism for clamping the muffler to be welded and a welding mechanism for welding the muffler. The main structure includes a column (107) fixedly installed on the base frame (101), and a lifting ring (106) is slidably installed on the column (107). The main structure also includes a top plate (102) fixedly installed on the column (107), a top motor (103) fixedly installed on the top plate (102), a vertical screw (105) rotatably installed on the top plate (102), the vertical screw (105) rotatably installed with the base frame (101), and the lifting ring (106) and the vertical screw (105) forming a threaded transmission; The welding mechanism includes a movable frame (301) slidably mounted on a lifting ring (106), a movable motor (302) fixedly mounted on the movable frame (301), a roller (303) fixedly mounted on the motor shaft of the movable motor (302), the roller (303) rolling along the lifting ring (106), an extension frame (305) slidably mounted on the movable frame (301), a welding torch (306) fixedly mounted on the extension frame (305), an electric cylinder (304) fixedly mounted on the movable frame (301), and the output end of the electric cylinder (304) fixedly mounted to the extension frame (305). A welding rod holder (307) is fixedly installed on the extension frame (305), a welding rod nozzle (310) is fixedly installed on the welding rod holder (307), a feeding rod holder (315) is fixedly installed on the welding rod holder (307), a pusher plate (316) is slidably installed on the feeding rod holder (315), and a feeding spring (314) is provided between the pusher plate (316) and the feeding rod holder (315). A push-out column (312) is slidably mounted on the electrode holder (307), a rack (311) is fixedly mounted on the push-out column (312), a push-out spring (313) is provided between the push-out column (312) and the electrode holder (307), an electrode motor (308) is fixedly mounted on the electrode holder (307), a half-tooth gear (309) is fixedly mounted on the motor shaft of the electrode motor (308), the half-tooth gear (309) meshes with the rack (311), and a push-out plate (317) is fixedly mounted below the push-out column (312), and the push-out plate (317) is slidably mounted on the electrode holder (307). When in use, multiple welding rods are placed on the welding rod holder (307), and the multiple welding rods are held in place in the welding rod holder (307) by the push plate (316), with only one welding rod located in front of the push plate (317).

2. The automated welding fixture for a muffler according to claim 1, characterized in that: A fan (104) is rotatably mounted on the top plate (102), and a top motor (103) drives the fan (104) and the lead screw (105) to rotate via a transmission belt.

3. The automated welding fixture for a muffler according to claim 1, characterized in that: The clamping mechanism includes a bottom motor (204) fixedly installed below the base frame (101), a clamping shell (201) fixedly installed on the base frame (101), a central shaft (205) rotatably installed on the base frame (101), the bottom motor (204) drives the central shaft (205) to rotate via belt drive, a central rotating block (206) fixedly installed on the central shaft (205), four clamping blocks (208) slidably installed on the base frame (101), a clamping column (209) fixedly installed on the clamping block (208), a pull rod (207) rotatably installed on the central rotating block (206), the pull rod (207) rotatably installed with the clamping block (208), and the clamping column (209) slidably installed with the clamping shell (201).

4. The automated welding fixture for a muffler according to claim 3, characterized in that: A rack (202) is fixedly installed on the base frame (101). A lifting block (212) is slidably installed on the rack (202). A spring is provided between the lifting block (212) and the rack (202). A guide gear (203) is rotatably installed on the lifting block (212). The guide gear (203) meshes with the rack (202). A lower pressure plate (213) is fixedly installed on the lifting block (212). An upper pressure plate (214) is slidably installed on the lower pressure plate (213). A pressure plate spring (215) is provided between the upper pressure plate (214) and the lower pressure plate (213).

5. The automated welding fixture for a muffler according to claim 4, characterized in that: A take-up drum (210) is rotatably mounted on the base frame (101). A pull rope (211) is wound on the take-up drum (210). The other end of the pull rope (211) is fixedly installed with the lifting block (212). The central shaft (205) drives the take-up drum (210) to rotate through belt drive and gear drive.

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