Welding equipment for exhaust pipe of methanol hybrid new energy automobile

Abstract

The invention relates to the field of exhaust pipe welding, in particular to methanol hybrid new energy automobile exhaust pipe welding equipment which comprises a welding table, a welding mechanism, a splicing mechanism and a driving mechanism are installed on the welding table, the welding mechanism is located on one side of the splicing mechanism, and the driving mechanism is located at the end of the splicing mechanism. The splicing mechanism is used for coaxially splicing an exhaust pipe and a pipeline of a silencer, the driving mechanism is used for driving the spliced exhaust pipe and the pipeline of the silencer to rotate synchronously, and the welding mechanism is used for welding the rotating exhaust pipe and the pipeline of the silencer. According to the method, the situation that in a traditional mode, the coaxiality between the front exhaust pipe and the front silencer is poor after welding is improved, and the effect of improving the welding coaxiality between the front exhaust pipe and the front silencer can be achieved.

Description

Technical Field

[0001] The present application relates to the field of exhaust pipe welding, and in particular to a welding device for an exhaust pipe of a methanol hybrid new energy vehicle. Background Art

[0002] The exhaust pipe is a part of the engine's exhaust system. The exhaust system mainly includes the exhaust manifold, exhaust pipe and muffler. Generally, a three-way catalytic converter for controlling engine pollutant emissions is also installed in the exhaust system. The exhaust pipe generally includes the front exhaust pipe and the rear exhaust pipe, and the muffler generally includes the front muffler and the rear muffler.

[0003] Usually, one end of the front muffler will be welded to the exhaust manifold, and the other end of the front muffler needs to be coaxially welded to the front exhaust pipe, and the other end of the front exhaust pipe will be welded to the rear muffler, and the other end of the rear muffler will be welded to the rear exhaust pipe. The rear exhaust pipe will also be bent accordingly according to the installation position of the exhaust pipe reserved in the vehicle chassis to meet the installation requirements of the vehicle's exhaust system.

[0004] At present, the welding of the front muffler and the front exhaust pipe is usually performed by manual splicing and welding. However, during the welding process, the axis of the pipe of the front muffler and the axis of the front exhaust pipe are easily offset, thereby affecting the coaxiality of the front muffler and the front exhaust pipe, which will cause the subsequent rear muffler to deviate from the originally set angle after being welded to the front exhaust pipe, so that the angle of deviation of the rear exhaust pipe welded at the end is larger, causing the installation position of the exhaust system and the vehicle chassis to be offset, thereby affecting the installation of the exhaust system. Summary of the invention

[0005] In order to improve the coaxiality of the welding between the front exhaust pipe and the front muffler, the present application provides a welding device for the exhaust pipe of a methanol hybrid new energy vehicle.

[0006] The present application provides a welding device for the exhaust pipe of a methanol hybrid new energy vehicle, which adopts the following technical solution: A welding device for an exhaust pipe of a methanol hybrid new energy vehicle comprises a welding table, on which a welding mechanism, a splicing mechanism and a driving mechanism are installed, and the welding mechanism is located at one side of the splicing mechanism, and the driving mechanism is located at the end of the splicing mechanism. The splicing mechanism is used to coaxially splice the exhaust pipe and the pipe of a muffler, the driving mechanism is used to drive the spliced ​​exhaust pipe and the pipe of the muffler to rotate synchronously, and the welding mechanism is used to weld the rotating exhaust pipe and the pipe of the muffler.

[0007] By adopting the above technical scheme, the muffler and the exhaust pipe are installed in the splicing mechanism, and the exhaust pipe is pushed to move by the splicing mechanism, so that the exhaust pipe and the pipe at the end of the muffler are docked, and the exhaust pipe and the pipe of the muffler are kept coaxial, thereby completing the splicing of the pipe of the muffler and the exhaust pipe, and then the exhaust pipe and the pipe of the muffler are driven to rotate synchronously by the driving mechanism, and during the rotation, the spliced ​​parts of the exhaust pipe and the muffler pipe are welded by the welding mechanism, thereby completing the assembly of the exhaust pipe and the muffler, and the setting of the splicing mechanism is conducive to maintaining the coaxiality between the pipes of the exhaust pipe and the muffler, thereby facilitating the reduction of the angular deviation generated when the exhaust pipe and the muffler are welded, thereby reducing the impact on the subsequent exhaust system installation.

[0008] In a specific feasible implementation scheme, the splicing mechanism includes a coaxial rod, a propulsion assembly and a support assembly. The coaxial rod is installed on a welding table in a horizontal direction. A splicing column is also installed on the end of the coaxial rod. The coaxial rod and the splicing column are both used to be plugged into the exhaust pipe, and the splicing column is also used to be plugged into the pipe of the muffler. The propulsion assembly includes a propulsion motor and a propulsion sleeve. The propulsion motor is installed on the welding table, and the propulsion motor is located at one end of the coaxial rod away from the splicing column. The propulsion sleeve is rotatably installed on the output end of the propulsion motor, and the propulsion sleeve is connected to one end of the coaxial rod. The support assembly is installed on the coaxial rod, and the propulsion sleeve and the splicing column are both connected to the support assembly.

[0009] By adopting the above technical solution, the exhaust pipe is placed on the coaxial rod and the splicing column, and the propulsion sleeve is driven to move by the propulsion motor in the propulsion assembly, thereby pushing the exhaust pipe toward the muffler, so that one end of the exhaust pipe is spliced ​​with the end of the pipe of the muffler, and the splicing column at the end of the coaxial rod is inserted into the pipe of the muffler, and the supporting assembly is used to support and position the exhaust pipe and the pipe of the muffler at the same time, so as to facilitate maintaining the coaxiality between the exhaust pipe and the pipe of the muffler.

[0010] In a specific possible implementation scheme, the support assembly includes a clamping block, a support member, a locking member and an unlocking member, the clamping block is installed on the side wall of the splicing column, and the clamping block is used to contact the inner wall of the exhaust pipe and the muffler pipe, the support member and the locking member are both installed in a coaxial rod, and the support member is connected to the clamping block, and the support member is used to push the clamping block out of the splicing column, the locking member is used to lock the support member, and the unlocking member is installed in a thrust sleeve, and the unlocking member is also connected to the coaxial rod and the locking member.

[0011] By adopting the above technical solution, the supporting member is driven to move by pushing the sleeve, so that the supporting member drives the exhaust pipe to move in the direction of the muffler, so that the exhaust pipe and the muffler pipe can be spliced, and after the exhaust pipe and the muffler pipe are spliced, the clamping block is supported by the supporting member, so that one end of the clamping block extends out of the splicing column and contacts the inner wall of the exhaust pipe and the inner wall of the muffler pipe, so that the exhaust pipe and the muffler pipe are positioned, and the supporting member is locked by the locking member, so as to keep the clamping block in a supported state, thereby facilitating the maintenance of the coaxiality between the exhaust pipe and the muffler pipe.

[0012] In a specific feasible implementation scheme, the support member includes a push rod, a push plate, a support spring and a support rod, the push rod is installed in the coaxial rod, and one end of the push rod extends into the splicing column, the support rod is installed in the splicing column, and one end of the support rod is connected to one end of the push rod located in the splicing column, the other end of the support rod is connected to the clamping block, the push rod is also connected to a locking member and an unlocking member, the push plate is installed on the side wall of the coaxial rod, and the push plate is located at the end of the coaxial rod away from the splicing column, the push plate is connected to the push rod through a connecting rod, a sliding groove for sliding the connecting rod is provided on the side wall of the coaxial rod, the push plate is used to abut against the end of the exhaust pipe, the support spring is installed on the coaxial rod, and one end of the support spring abuts against the side wall of the push plate, and the other end abuts against the end of the thrust sleeve.

[0013] By adopting the above technical solution, when the thrust sleeve drives the coaxial rod to move, the thrust sleeve also pushes the push plate to move through the support spring, so that the push plate pushes the exhaust pipe to move in the direction of the muffler, so that the exhaust pipe and the muffler pipe are connected, and after the exhaust pipe and the muffler pipe are connected, the thrust sleeve continues to push the support spring to move, so that the support spring is compressed and the coaxial rod is displaced relative to the push plate, so that the push plate drives the push rod to move relative to the coaxial rod, so that the push rod pulls one end of the support rod, so that the support rod rotates, and the other end of the support rod pushes the clamping block out of the splicing column, thereby facilitating driving the clamping block to position the exhaust pipe and the muffler pipe.

[0014] In a specific feasible implementation scheme, the locking member includes a locking block and a locking spring, the locking block is installed on the supporting member, and one end of the locking block extends in the direction of the coaxial rod, and the axis of the locking block is perpendicular to the axis of the coaxial rod, and a plurality of locking grooves for the locking block to be inserted are provided in the inner wall of the coaxial rod, and the plurality of locking grooves are arranged along the length direction of the coaxial rod, and a resistance inclined surface is provided on the side wall of the locking block close to the pushing sleeve, and one end of the resistance inclined surface extends obliquely from the end of the locking block in the direction of the pushing sleeve to the side wall of the locking block, and the resistance inclined surface is used to resist the side wall of the locking groove close to one end of the pushing sleeve, the locking spring is installed in the supporting member, and the locking spring is connected to the locking block, and the locking block is also connected to the unlocking member.

[0015] By adopting the above technical solution, when the clamping block is propped up, the push rod also drives the locking block to move to the corresponding locking groove, so that the locking block is inserted into the locking groove on the coaxial rod under the action of the locking spring, thereby locking the push rod in the current position, making it easy to keep the clamping block in a state of contact with the inner wall of the exhaust pipe and the muffler pipe, thereby making it easy to maintain the positioning of the exhaust pipe and the muffler pipe.

[0016] In a specific feasible implementation scheme, the unlocking member includes an unlocking sleeve, an unlocking spring and an unlocking cylinder, the unlocking sleeve is inserted into the coaxial rod, and one end of the unlocking sleeve passes through the end of the coaxial rod and extends into the propulsion sleeve, and the side wall of the unlocking sleeve is also provided with a plurality of unlocking grooves that coincide with the plurality of locking grooves on the coaxial rod, the unlocking groove is also used for allowing the locking block to pass through, and the side wall of the unlocking groove close to one end of the propulsion sleeve is used to resist the interfering inclined surface of the locking block, and the end of the unlocking groove of the unlocking sleeve away from the propulsion sleeve is provided with a guide inclined surface, and the guide inclined surface is used to resist the locking block, the unlocking spring is installed on the side wall of the unlocking sleeve at one end of the propulsion sleeve, and the unlocking spring is also connected to the coaxial rod, the unlocking cylinder is installed in the propulsion sleeve, and the piston rod of the unlocking cylinder is used to push the unlocking sleeve toward the direction of the splicing column.

[0017] By adopting the above technical solution, when the locking block needs to be unlocked, the unlocking sleeve is pushed to move by the unlocking cylinder, thereby compressing the unlocking spring and making the side wall of the unlocking groove on the unlocking sleeve contact the contact slope of the locking block, thereby pushing the locking block into the push rod, so that the locking block is separated from the coaxial rod, thereby facilitating the unlocking of the push rod, thereby facilitating the clamping block to retreat into the splicing column, so as to facilitate the separation of the exhaust pipe and the coaxial rod.

[0018] In a specific feasible implementation scheme, a lifting assembly is also installed on the welding table, and the lifting assembly includes a lifting cylinder and a supporting block. The lifting cylinder is vertically installed on the welding table, and the piston rod of the lifting cylinder extends upward. The cross-section of the supporting block is arc-shaped, and the supporting block is installed on the piston rod of the lifting cylinder, and the arc-shaped portion of the supporting block is used to support the coaxial rod.

[0019] By adopting the above technical solution, the support block is driven to move upward by the support cylinder, so that the support block lifts the coaxial rod, thereby reducing the bending of the coaxial rod when the exhaust pipe and the muffler pipe are not welded, thereby facilitating maintaining the coaxiality between the coaxial rod and the exhaust pipe.

[0020] In a specific feasible implementation scheme, the driving mechanism includes a clamping assembly and a rotating assembly, the clamping assembly includes a first jacket, a first clamping cylinder, a first clamping block, a second jacket, a second clamping cylinder and a second clamping block, the first jacket is installed on the welding table near the splicing mechanism, and the first jacket is used to be sleeved on the outer wall of the exhaust pipe, the first clamping cylinder is installed at the end of the first jacket, and the piston rod of the first clamping cylinder extends in the direction of the exhaust pipe, the first clamping block is installed on the piston rod of the first clamping cylinder, and the first clamping block is used to abut against the side wall of the exhaust pipe, the second jacket is installed on the welding table away from the splicing mechanism, and the second jacket is used to be sleeved on the pipe of the muffler, the second clamping cylinder is installed at the end of the second jacket, and the piston rod of the second clamping cylinder extends in the direction of the pipe of the muffler, the second clamping block is installed on the piston rod of the second clamping cylinder, and the second clamping block is used to abut against the side wall of the pipe of the muffler, the rotating assembly is installed on the welding table, and the first jacket and the second jacket are both connected to the rotating assembly.

[0021] By adopting the above technical solution, the pipe of the muffler is inserted into the second jacket, and the second clamping block is driven to move by the second clamping cylinder so that the second clamping block contacts the side wall of the pipe of the muffler, thereby positioning the muffler on the second jacket. The exhaust pipe is inserted into the first jacket, and after the exhaust pipe and the pipe of the muffler are spliced, the first clamping block is driven by the first clamping cylinder to contact the side wall of the exhaust pipe, thereby positioning the exhaust pipe, thereby facilitating the stability of the exhaust pipe and the muffler when welding the pipes of the exhaust pipe and the muffler, and facilitating the rotating assembly to drive the muffler and the exhaust pipe to rotate synchronously, so as to facilitate welding work.

[0022] In a specific feasible implementation scheme, the rotating assembly includes a first rotating motor, a first rotating wheel, a first transmission wheel, a first synchronous belt, a second rotating motor, a second rotating wheel, a second transmission wheel and a second synchronous belt. The first rotating motor is mounted on a welding table, the first rotating wheel is coaxially mounted on the output shaft of the first rotating motor, the first transmission wheel is coaxially mounted on a first sleeve, the first synchronous belt connects the first rotating wheel with the first transmission wheel, the second rotating motor is also mounted on the welding table, the second rotating wheel is coaxially mounted on the output shaft of the second rotating motor, the second transmission wheel is coaxially mounted on the second sleeve, and the second synchronous belt connects the second rotating wheel with the second transmission wheel.

[0023] By adopting the above technical solution, the first rotating wheel is driven to rotate by the first rotating motor, so that the first rotating wheel drives the first transmission wheel to rotate through the first synchronous belt, so that the first transmission wheel drives the first jacket to rotate, so that the first clamping block on the first jacket drives the exhaust pipe to rotate through friction, and at the same time, the second rotating wheel is driven to rotate by the second rotating motor, so that the second rotating wheel drives the second transmission wheel to rotate through the second synchronous belt, so that the second transmission wheel drives the second jacket to rotate, so that the second clamping block on the second jacket drives the pipe of the muffler and the exhaust pipe to rotate synchronously through friction, thereby facilitating welding.

[0024] In a specific possible implementation scheme, the welding mechanism includes a welding robot arm and a welding gun, the welding robot arm is installed on a welding table, and the welding robot arm is located at the splicing position of the exhaust pipe and the muffler pipe, the welding gun is installed on the output end of the welding robot arm, and the welding gun is used to weld the splicing position of the exhaust pipe and the muffler pipe.

[0025] By adopting the above technical solution, the welding gun is driven by the robot arm to move to the joint portion of the exhaust pipe and the muffler pipe, thereby facilitating welding of the joint portion by the welding gun.

[0026] In summary, the present application includes at least one of the following beneficial effects: 1. The present application sets up a splicing mechanism to facilitate the coaxial splicing of the exhaust pipe and the muffler pipe through the splicing mechanism, and maintain the coaxiality between the exhaust pipe and the muffler pipe, so that after the welding mechanism welds the splicing position, the exhaust pipe and the muffler pipe maintain good coaxiality, thereby facilitating the subsequent installation of the exhaust system.

[0027] 2. The present application provides a support assembly, which facilitates positioning of the exhaust pipe and the muffler pipes through the support assembly at the same time, thereby facilitating maintaining the coaxiality between the exhaust pipe and the muffler pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the welding equipment for the exhaust pipe of a methanol hybrid new energy vehicle of the present application.

[0029] Figure 2 It is a structural schematic diagram of the splicing mechanism in the embodiment of the present application.

[0030] Figure 3 It is a schematic diagram of the structure of the supporting member in the embodiment of the present application.

[0031] Figure 4 yes Figure 2 Enlarged view of point A in the middle.

[0032] Figure 5 It is a schematic diagram of the structure of the unlocking member in the embodiment of the present application.

[0033] Figure 6 It is a schematic diagram of the structure of the clamping assembly in an embodiment of the present application.

[0034] Figure 7 It is a schematic diagram of the structure of the rotating assembly in the embodiment of the present application.

[0035] Description of reference numerals: 1. Welding table; 2. Welding mechanism; 21. Welding robot arm; 22. Welding gun; 3. Splicing mechanism; 31. Coaxial rod; 311. Slide groove; 312. Locking groove; 313. Splicing column; 32. Propulsion assembly; 321. Propulsion motor; 322. Propulsion sleeve; 33. Support assembly; 331. Clamping block; 332. Push rod; 333. Push plate; 334. Support spring; 335. Support rod; 3351. Waist groove; 336. Connecting rod; 337. Locking block; 3371. Resisting inclined plane; 338. Locking spring; 339. Unlocking sleeve; 3391. Unlocking groove; 3392. Guide inclined plane; 3393. Baffle; 3310. Unlocking spring; 3320. Unlocking cylinder; 4. Driving mechanism; 41. Clamping assembly; 411. First clamping sleeve; 412. First clamping cylinder; 413. First clamping block; 414. Second clamping sleeve; 415. Second clamping cylinder; 416. Second clamping block; 417. First bracket; 418. Second bracket; 42. Rotating assembly; 421. First rotating motor; 422. First rotating wheel; 423. First transmission wheel; 424. First synchronous belt; 425. Second rotating motor; 426. Second rotating wheel; 427. Second transmission wheel; 428. Second synchronous belt; 429. First mounting plate; 4210. Second mounting plate; 5. Lifting assembly; 51. Lifting cylinder; 52. Support block; 6. Exhaust pipe; 7. Muffler. DETAILED DESCRIPTION

[0036] The present application is further described in detail below in conjunction with the accompanying drawings.

[0037] The present application embodiment discloses a welding device for a methanol hybrid new energy vehicle exhaust pipe, referring to Figure 1 and Figure 2 , including a welding table 1, on which a welding mechanism 2, a splicing mechanism 3 and a driving mechanism 4 are installed. The splicing mechanism 3 is used to coaxially splice one end of the exhaust pipe 6 with the pipe of the muffler 7. The welding mechanism 2 is located on one side of the splicing mechanism 3, and the welding mechanism 2 is used to weld the splicing portion of the exhaust pipe 6 and the pipe of the muffler 7. The driving mechanism 4 is also arranged on one side of the splicing mechanism 3, and the driving mechanism 4 is used to drive the spliced ​​exhaust pipe 6 and the muffler 7 pipe to rotate, thereby facilitating the welding mechanism 2 to perform welding.

[0038] Reference Figure 1 and Figure 2 The splicing mechanism 3 includes a coaxial rod 31, a propulsion assembly 32 and a support assembly 33. The propulsion assembly 32 includes a propulsion motor 321 and a propulsion sleeve 322. The propulsion motor 321 uses an electric push rod 332. The electric push rod 332 is a prior art in this field and will not be described in detail here. The propulsion motor 321 is fixedly mounted on the welding table 1, and one end of the propulsion sleeve 322 is rotatably mounted on the output end of the propulsion motor 321, and the other end of the propulsion sleeve 322 extends horizontally away from the propulsion motor 321. The propulsion motor 321 uses an electric push rod 332. The electric push rod 332 is a prior art in this field and will not be described in detail here. The coaxial rod 31 is arranged in the horizontal direction, and one end of the coaxial rod 31 is inserted into the end of the propulsion sleeve 322 away from the propulsion motor 321, and the end of the coaxial rod 31 located in the propulsion sleeve 322 is detachably connected to the propulsion sleeve 322, and the propulsion sleeve 322 is coaxial with the coaxial rod 31, the propulsion sleeve 322 and the coaxial rod 31 are both hollow structures, and the interior of the coaxial rod 31 is interconnected with the interior of the propulsion sleeve 322, and the end of the coaxial rod 31 away from the propulsion sleeve 322 is also fixedly installed with a splicing column 313, the splicing column 313 is also a hollow structure, and the interior of the splicing column 313 is interconnected with the interior of the coaxial rod 31, the diameter of the splicing column 313 is larger than the diameter of the coaxial rod 31, and the outer diameter of the splicing column 313 is equal to the inner diameter of the exhaust pipe 6, and the splicing column 313 is used to be inserted into the pipes of the exhaust pipe 6 and the muffler 7.

[0039] Reference Figure 1 and Figure 2The supporting assembly 33 includes a clamping block 331, a supporting member, a locking member and an unlocking member. Two clamping blocks 331 are provided, and three clamping blocks 331 are arranged on the peripheral side wall of the splicing column 313 along the circumferential direction of the splicing column 313. A mounting groove is opened on the peripheral side wall of the splicing column 313, and the mounting groove is connected to the internal space of the splicing column 313. The clamping block 331 is slidably installed in the mounting groove, and one end of the clamping block 331 extends into the internal space of the splicing column 313, and the end of the clamping block 331 away from the internal space of the splicing column 313 is used to resist the inner wall of the exhaust pipe 6 and the muffler 7.

[0040] Reference Figure 2 and Figure 3 The supporting member includes a push rod 332, a push plate 333, a supporting spring 334 and a support rod 335. The push rod 332 is slidably installed in the coaxial rod 31 in the horizontal direction, and one end of the push rod 332 extends to the inside of the splicing column 313. There are six support rods 335, and every two support rods 335 correspond to a clamping block 331, and the two support rods 335 corresponding to the same clamping block 331 are arranged along the axial direction of the push rod 332, and the six support rods 335 are rotatably installed in the inner wall of the splicing column 313, and one end of the support rod 335 extends to the end of the push rod 332 and is hinged to the end of the push rod 332, and the other end of the support rod 335 extends obliquely to the side wall of one end of the clamping block 331 located in the splicing column 313, refer to Figure 3 and Figure 4 A supporting groove is provided on the inside of the clamping block 331 for the end of the support rod 335 to slide, and the supporting groove is arranged along the length direction of the clamping block 331, and a sliding rod is fixedly installed at one end of the support rod 335 located in the supporting groove, and the sliding rod is slidably connected to the side wall of the supporting groove, and a waist-shaped groove 3351 is also provided on the side wall of the support rod 335 at the rotation axis of the support rod 335 for the rotation axis of the support rod 335 to slide. In the initial position, the angle between the support rod 335 and the push rod 332 is an acute angle.

[0041] Reference Figure 2 and Figure 3The push plate 333 has a circular cross section, and is slidably sleeved on the outer side wall of the coaxial rod 31. The push plate 333 is located at one end of the coaxial rod 31 away from the splicing column 313, and the push plate 333 is connected to the push rod 332 in the coaxial rod 31 through a connecting rod 336. The two ends of the connecting rod 336 are respectively fixedly connected to the push plate 333 and the push rod 332. A sliding groove 311 for sliding the connecting rod 336 is provided on the side wall of the coaxial rod 31. The sliding groove 311 is arranged along the length direction of the coaxial rod 31, and the push plate 333 is used to abut against the end of the exhaust pipe 6. The support spring 334 is installed on the coaxial rod 31, and the support spring 334 is located between the push plate 333 and the propulsion sleeve 322, and one end of the support spring 334 abuts against the side wall of the push plate 333, and the other end abuts against the side wall of the end of the propulsion sleeve 322.

[0042] Reference Figure 1 and Figure 2 , by sleeve-mounting the exhaust pipe 6 on the outside of the coaxial rod 31 and the splicing column 313, and then driving the propulsion sleeve 322 to move toward the exhaust pipe 6 through the propulsion motor 321, so that the push plate 333 gradually moves toward the exhaust pipe 6 until it hits the end of the exhaust pipe 6, and then the push plate 333 pushes the exhaust pipe 6 to move, so that the end of the exhaust pipe 6 away from the propulsion motor 321 moves toward the pipe of the muffler 7 until the end of the exhaust pipe 6 hits the end of the pipe of the muffler 7, thereby splicing the exhaust pipe 6 and the pipe of the muffler 7. Figure 1 and Figure 4 At this time, the propulsion motor 321 continues to propel the coaxial rod 31 through the propulsion sleeve 322, so that the coaxial rod 31 drives the splicing column 313 to move in the direction of the pipe of the muffler 7, until one end of the splicing column 313 is inserted into the pipe of the muffler 7, and the propulsion motor 321 stops moving, so that one end of the splicing column 313 is located in the pipe of the muffler 7, and the other end is located in the exhaust pipe 6. At this time, the push plate 333 will support the spring 334 to compress, and the push plate 333 drives the push rod 333 through the connecting rod 336. The coaxial rod 31 moves in a direction away from the splicing column 313, so that the push rod 332 pulls one end of the support rod 335 to rotate, so that the angle between the support rod 335 and the push rod 332 becomes larger, so that the other end of the support rod 335 pushes the clamping block 331 out of the splicing column 313, so that the clamping block 331 contacts the inner wall of the exhaust pipe 6 and the muffler 7, so as to position the exhaust pipe 6 and the muffler 7, so as to facilitate the coaxiality between the exhaust pipe 6 and the muffler 7.

[0043] Reference Figure 3 and Figure 5The locking member includes a locking block 337 and a locking spring 338. A positioning groove is provided on the side wall of the push rod 332 near the pushing sleeve 322. The locking block 337 is slidably installed in the positioning groove, and one end of the locking block 337 extends out of the positioning groove, and the sliding axis of the locking block 337 is perpendicular to the axis of the push rod 332. A plurality of locking grooves 312 for the locking block 337 to be inserted are provided on the inner wall of the coaxial rod 31. The plurality of locking grooves 312 are arranged along the axial direction of the coaxial rod 31. A resisting inclined surface 3371 is provided on the side wall of the end of the locking block 337 located outside the positioning groove, and one end of the resisting inclined surface 3371 extends obliquely from the end of the locking block 337 toward the direction of the pushing sleeve 322 to the side wall of the locking block 337, and the resisting inclined surface 3371 is used to resist the side wall of the locking groove 312 near one end of the pushing sleeve 322. The locking spring 338 is installed in the positioning groove, and one end of the locking spring 338 abuts against the inner wall of the positioning groove, and the other end abuts against one end of the locking block 337 located in the positioning groove.

[0044] Reference Figure 2 and Figure 5 The unlocking member includes an upper unlocking sleeve 339, an unlocking spring 3310 and an unlocking cylinder 3320. The unlocking sleeve 339 is slidably installed in the coaxial rod 31, and the unlocking sleeve 339 is also slidably sleeved on the outer wall of the push rod 332, and one end of the unlocking sleeve 339 extends into the pushing sleeve 322, and the other end extends toward the direction of the splicing column 313. A plurality of unlocking grooves 3391 for the locking block 337 to be inserted into the side wall of the unlocking sleeve 339 are also provided, and the plurality of unlocking grooves 3391 correspond to the plurality of locking grooves 312 one by one, and the unlocking grooves 3391 overlap with the locking grooves 312, and one end of the unlocking groove 3391 close to the pushing sleeve 322 is used to abut against the abutting inclined surface 3371 of the locking block 337, and the end of the unlocking groove 3391 away from the upper pushing sleeve 322 is provided with a guiding inclined surface 3392 for guiding the locking block 337 to slide, and one end of the guiding inclined surface 3392 extends obliquely from the outer wall of the unlocking sleeve 339 in the direction away from the pushing sleeve 322 to the inner wall of the unlocking sleeve 339, and in the initial position, the end of the locking block 337 located outside the push rod 332 abuts against the inner wall of the unlocking sleeve 339. The end of the unlocking sleeve 339 located in the pushing sleeve 322 is fixedly mounted with a baffle 3393, and the unlocking spring 3310 is installed at the end of the unlocking sleeve 339 located in the pushing sleeve 322, and one end of the unlocking spring 3310 abuts against the end of the coaxial rod 31, and the other end abuts against the side wall of the baffle 3393. The unlocking cylinder 3320 is fixedly mounted in the pushing sleeve 322 in the horizontal direction, and the piston rod of the unlocking cylinder 3320 extends in the direction of the baffle 3393, and the piston rod of the unlocking cylinder 3320 is used to abut against the side wall of the baffle 3393.

[0045] Reference Figure 2 and Figure 5When the propulsion motor 321 drives the coaxial rod 31 to move into position, the push plate 333 compresses the support spring 334 and drives the push rod 332 to move relative to the coaxial rod 31, so that the locking block 337 slides along the inner wall of the unlocking sleeve 339 until the locking block 337 passes through the unlocking groove 3391 on the unlocking sleeve 339 and is inserted into the locking groove 312, thereby realizing the positioning of the push rod 332. In addition, when splicing an exhaust pipe 6 with a longer length, the exhaust pipe 6 pushes the push plate 333 to move a longer distance, so that the push plate 333 drives the push rod 332 to move a longer distance relative to the coaxial rod 31 through the connecting rod 336, so that the locking block 337 passes over several locking grooves 312 until the locking block 337 is inserted into a suitable locking groove 312, so that one end of the splicing column 313 at the end of the coaxial rod 31 is inserted into the pipe of the muffler 7. When the locking block 337 passes over several locking grooves 312, the resistance on the side wall of the locking block 337 The inclined surface 3371 abuts against the side walls of the locking groove 312 and the unlocking groove 3391 near one end of the pushing sleeve 322, so that the side walls at the ends of the locking groove 312 and the unlocking groove 3391 slide along the abutting inclined surface 3371, thereby compressing the locking block 337 into the push rod 332 and compressing the locking spring 338, so that the end of the locking block 337 moves to the inner wall of the unlocking sleeve 339, and slides along the inner wall of the unlocking sleeve 339 to the unlocking groove 3391 at the next position, thereby realizing the action of the locking block 337 crossing the locking groove 312.

[0046] Reference Figure 2 and Figure 5When the exhaust pipe 6 and the muffler 7 are welded, the baffle 3393 is pushed to move and the unlocking spring 3310 is compressed by the unlocking cylinder 3320, so that the unlocking sleeve 339 moves away from the pushing sleeve 322, so that the side wall of the unlocking groove 3391 on the unlocking sleeve 339 close to the pushing sleeve 322 hits the hitting inclined surface 3371, so that the locking block 337 is gradually pressed into the push rod 332, so that the locking block 337 is separated from the coaxial rod 31, so that the end of the locking block 337 moves to hit the inner wall of the unlocking sleeve 339, and the unlocking sleeve 339 is unlocked. The groove 3391 is staggered with the locking groove 312 on the coaxial rod 31, thereby unlocking the unlocking block and the coaxial rod 31, and then the propulsion sleeve 322 is driven by the propulsion motor 321 to move away from the exhaust pipe 6, so that the propulsion sleeve 322 drives the coaxial rod 31 to move away from the upper muffler 7, so that the coaxial rod 31 drives the splicing column 313 to move in the direction of the propulsion sleeve 322, so that the splicing column 313 drives the clamping block 331 to move in the direction of the propulsion sleeve 322, so that the clamping block 331 slides a short distance along the inner wall of the exhaust pipe 6 and the muffler 7 pipe. When the clamping block 331 slides a certain distance, the push plate 333 moves toward the exhaust pipe 6 under the action of the support spring 334, thereby driving the push rod 332 to move away from the propulsion sleeve 322, so that the push rod 332 moves relative to the coaxial rod 31, so that the push rod 332 pushes one end of the support rod 335 to rotate, thereby reducing the angle between the support rod 335 and the push rod 332, so that the other end of the support rod 335 pulls the clamping block 331 into the splicing column 313, thereby separating the clamping block 331 from the inner wall of the splicing column 313, so that the exhaust pipe 6 and the muffler 7 pipe can be quickly removed from the coaxial rod 31.

[0047] Reference Figure 2 and Figure 5When the locking cam 337 is in the unlocking state, the locking cam 337 is in the unlocking state, and the locking cam 337 is in the unlocking state, so that the locking cam 337 can slide along the inner wall of the unlocking sleeve 339. In the process of the locking block 337 passing over several unlocking grooves 3391, the locking block 337 slides along the inner wall of the unlocking sleeve 339 to the unlocking groove 3391, and is inserted into the unlocking groove 3391 and contacts the inner wall of the coaxial rod 31. Then, as the push rod 332 continues to move away from the thrust sleeve 322 relative to the coaxial rod 31 and the unlocking sleeve 339 under the action of the push plate 333 and the support spring 334, the locking block 337 is driven to move to the guide slope 3392, and slides again along the guide slope 3392 to the inner wall of the unlocking sleeve 339 and compresses the locking spring 338, thereby realizing the action of the locking block 337 passing over the unlocking groove 3391.

[0048] Reference Figure 2 and Figure 6 The driving mechanism 4 includes a clamping assembly 41 and a rotating assembly 42. The clamping assembly 41 includes a first jacket 411, a first clamping cylinder 412, a first clamping block 413, a second jacket 414, a second clamping cylinder 415 and a second clamping block 416. A first bracket 417 is fixedly installed on the welding table 1 near the propulsion motor 321. The first jacket 411 is rotatably installed on the first bracket 417, and the first jacket 411 is coaxial with the coaxial rod 31. The inner diameter of the first jacket 411 is larger than the outer diameter of the splicing column 313, and the first jacket 411 is used for plugging the exhaust pipe 6. The first clamping cylinder 412 is fixedly mounted on the side wall of the end of the first jacket 411, and there are three first clamping cylinders 412, and the three first clamping cylinders 412 are equidistantly arranged along the circumferential direction of the first jacket 411, and the piston rod of each first clamping cylinder 412 extends in the direction of the coaxial rod 31, and there are three first clamping blocks 331, and the three first clamping blocks 331 correspond one by one to the three first clamping cylinders 412, and the first clamping blocks 331 are fixedly mounted on the piston rod of the first clamping cylinder 412, and the first clamping blocks 331 are used to resist the outer wall of the exhaust pipe 6.

[0049] Reference Figure 2 and Figure 7 A second bracket 418 is fixedly installed on the welding table 1 at a position far away from the propulsion motor 321, and a second jacket 414 is rotatably installed on the second bracket 418, and the second jacket 414 is coaxial with the first jacket 411, and the second jacket 414 is used for plugging the pipe of the muffler. A second clamping cylinder 415 is fixedly installed on the side wall of the end of the second jacket 414, and three second clamping cylinders 415 are also provided, and the three clamping cylinders are arranged equidistantly along the circumferential direction of the second jacket 414, and the piston rod of each second clamping cylinder 415 extends in the axial direction of the second jacket 414. Three second clamping blocks 416 are also provided, and the three second clamping blocks 416 correspond to the three second clamping cylinders 415 one by one, and the second clamping blocks 416 are fixedly installed on the piston rod of the second clamping cylinder 415, and the second clamping blocks 416 are used to resist the outer wall of the pipe of the effector.

[0050] Reference Figure 6 and Figure 7 The rotating assembly 42 includes a first rotating motor 421, a first rotating wheel 422, a first transmission wheel 423, a first synchronous belt 424, a second rotating motor 425, a second rotating wheel 426, a second transmission wheel 427 and a second synchronous belt 428. A first mounting plate 429 is fixedly installed on the welding table 1 below the first sleeve 411. The first rotating motor 421 is fixedly installed on the side wall of the mounting plate in the horizontal direction. The first rotating wheel 422 is coaxially installed on the output shaft of the first rotating motor 421. The first transmission wheel 423 is coaxially installed on the first sleeve 411. The first synchronous belt 424 connects the first rotating wheel 422 with the first transmission wheel 423. A second mounting plate 4210 is fixedly installed on the welding table 1 below the second sleeve 414, the second rotating motor 425 is fixedly installed on the side wall of the second mounting plate 4210 in the horizontal direction, the second rotating wheel 426 is coaxially installed on the output shaft of the second rotating motor 425, the second transmission wheel 427 is coaxially installed on the second sleeve 414, and the second synchronous belt 428 connects the second rotating wheel 426 with the second transmission wheel 427.

[0051] Reference Figure 6 and Figure 7, insert the pipe of the muffler 7 into the second jacket 414, and then drive the second clamping block 416 to move through the second clamping cylinder 415, so that the second clamping block 416 abuts against the side wall of the pipe of the muffler 7, thereby clamping the pipe of the muffler 7. Then, the exhaust pipe 6 is sleeved on the splicing column 313, and the exhaust pipe 6 is inserted into the first jacket 411, and then the exhaust pipe 6 is pushed by the propulsion assembly 32 to move in the direction of the pipe of the muffler 7 until the end of the exhaust pipe 6 is spliced ​​with the end of the pipe of the muffler 7, and then the first clamping block 413 is driven by the first clamping cylinder 412 to abut against the outer wall of the exhaust pipe 6, thereby clamping the exhaust pipe 6. Then, the first rotating wheel 422 is driven to rotate by the first rotating motor 421, thereby driving the first transmission wheel 423 to rotate through the first synchronous belt 424, so that the first transmission wheel 423 drives the first jacket 411 to rotate, thereby driving the exhaust pipe 6 to rotate. At the same time, the second rotating wheel 426 is synchronously driven to rotate by the second rotating motor 425, so that the second rotating wheel 426 drives the second transmission wheel 427 to rotate through the second synchronous belt 428, so that the second transmission wheel 427 drives the second jacket 414 to rotate, thereby driving the pipe of the muffler 7 and the exhaust pipe 6 to rotate synchronously in the same direction, so that the welding mechanism 2 can weld the splicing position of the pipes of the exhaust pipe 6 and the muffler 7.

[0052] Reference Figure 2 and Figure 7 The welding table 1 is also provided with a lifting assembly 5, which includes a lifting cylinder 51 and a supporting block 52. The lifting cylinder 51 is fixedly mounted on the top wall of the first mounting plate 429 in the vertical direction, and the piston rod of the lifting cylinder 51 extends upward. The supporting block 52 is fixedly mounted on the piston rod of the lifting cylinder 51, and the supporting block 52 is located below the coaxial rod 31. The cross section of the supporting block 52 is in an arc shape, and the arc-shaped part of the supporting block 52 is used to lift the coaxial rod 31. When the welding equipment stops working, the supporting block 52 is driven to move upward by the lifting cylinder 51, so that the supporting block 52 lifts the coaxial rod 31, thereby reducing the downward bending of the coaxial rod 31, so as to maintain the coaxiality between the coaxial rod 31 and the first jacket 411. When it is necessary to weld the exhaust pipe 6 and the pipes of the muffler 7, when the exhaust pipe 6 is inserted into the first jacket 411 and placed on the splicing column 313, the lifting cylinder 51 drives the support block 52 to move downward, thereby separating the support block 52 from the coaxial rod 31, thereby reducing the interference of the support block 52 with the movement of the exhaust pipe 6.

[0053] Reference Figure 1The welding mechanism 2 includes a welding robot arm 21 and a welding gun 22. The welding robot arm 21 is fixedly mounted on the welding table 1 and is located at the joint of the exhaust pipe 6 and the muffler 7. The welding gun 22 is fixedly mounted on the output end of the welding robot arm 21, and the welding gun 22 is used to weld the joint of the exhaust pipe 6 and the muffler 7. The welding gun 22 and the specific welding method are prior arts in the art and will not be elaborated here.

[0054] The working principle of the embodiment of the present application is as follows: by inserting the pipe of the muffler 7 into the second jacket 414, then clamping the pipe of the muffler 7, inserting the exhaust pipe 6 into the first jacket 411, and sleeve the exhaust pipe 6 on the splicing column 313, and then pushing the exhaust pipe 6 through the pushing component 32, so that the end of the exhaust pipe 6 is spliced ​​with the end of the pipe of the muffler 7, and after the splicing is completed, the inner wall of the exhaust pipe 6 and the inner wall of the pipe of the muffler 7 are coaxially positioned by the supporting component 33, so as to maintain the coaxiality of the exhaust pipe 6 and the pipe of the muffler 7. Then, the exhaust pipe 6 and the pipe of the muffler 7 are driven to rotate synchronously by the rotating component 42, and in the process of rotation, the splicing position of the exhaust pipe 6 and the pipe of the muffler 7 is welded by the welding gun 22 on the welding robot arm 21. After welding is completed, the pushing assembly 32 drives the coaxial rod 31 to move away from the muffler 7, so that the supporting assembly 33 loosens the pipe of the muffler 7 and the exhaust pipe 6, and then the clamping assembly 41 loosens the exhaust pipe 6 and the pipe of the muffler 7, thereby facilitating the exhaust pipe 6 to be pulled out from the coaxial rod 31, thereby realizing the unloading of the muffler 7 and the exhaust pipe 6.

[0055] The above are preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A welding device for an exhaust pipe of a methanol hybrid new energy vehicle, comprising a welding table (1), characterized in that: The welding table (1) is equipped with a welding mechanism (2), a splicing mechanism (3) and a driving mechanism (4), wherein the welding mechanism (2) is located on one side of the splicing mechanism (3), and the driving mechanism (4) is located at the end of the splicing mechanism (3). The splicing mechanism (3) is used to coaxially splice the exhaust pipe (6) and the pipe of the muffler (7), and the driving mechanism (4) is used to drive the spliced ​​exhaust pipe (6) and the pipe of the muffler (7) to rotate synchronously, and the welding mechanism (2) is used to weld the rotating exhaust pipe (6) and the pipe of the muffler (7).

2. The welding equipment for the exhaust pipe of a methanol hybrid new energy vehicle according to claim 1 is characterized in that: The splicing mechanism (3) comprises a coaxial rod (31), a propulsion assembly (32) and a support assembly (33); the coaxial rod (31) is mounted on a welding table (1) in a horizontal direction; a splicing column (313) is also mounted on the end of the coaxial rod (31); the coaxial rod (31) and the splicing column (313) are both used to be plugged into an exhaust pipe (6); and the splicing column (313) is also used to be plugged into a pipe of a muffler (7); the propulsion assembly (32) comprises a propulsion motor (321) and a propulsion sleeve (321). 22), the propulsion motor (321) is installed on the welding table (1), and the propulsion motor (321) is located at one end of the coaxial rod (31) away from the splicing column (313), the propulsion sleeve (322) is rotatably installed on the output end of the propulsion motor (321), and the propulsion sleeve (322) is connected to one end of the coaxial rod (31), the support assembly (33) is installed on the coaxial rod (31), and the propulsion sleeve (322) and the splicing column (313) are both connected to the support assembly (33).

3. The welding equipment for the exhaust pipe of a methanol hybrid new energy vehicle according to claim 2 is characterized in that: The supporting assembly (33) includes a clamping block (331), a supporting member, a locking member and an unlocking member. The clamping block (331) is installed on the side wall of the splicing column (313), and the clamping block (331) is used to abut against the inner wall of the exhaust pipe (6) and the muffler (7). The supporting member and the locking member are both installed in the coaxial rod (31), and the supporting member is connected to the clamping block (331), and the supporting member is used to push the clamping block (331) out of the splicing column (313). The locking member is used to lock the supporting member. The unlocking member is installed in the pushing sleeve (322), and the unlocking member is also connected to the coaxial rod (31) and the locking member.

4. The welding equipment for the exhaust pipe of a methanol hybrid new energy vehicle according to claim 3 is characterized in that: The supporting member comprises a push rod (332), a push plate (333), a supporting spring (334) and a supporting rod (335); the push rod (332) is installed in the coaxial rod (31), and one end of the push rod (332) extends into the splicing column (313); the supporting rod (335) is installed in the splicing column (313), and one end of the supporting rod (335) is connected to one end of the push rod (332) located in the splicing column (313); the other end of the supporting rod (335) is connected to the clamping block (331); the push rod (332) is also connected to a locking member and an unlocking member; the push plate (333) is installed On the side wall of the coaxial rod (31), the push plate (333) is located at one end of the coaxial rod (31) away from the splicing column (313), the push plate (333) is connected to the push rod (332) through a connecting rod (336), and a sliding groove (311) for the connecting rod (336) to slide is provided on the side wall of the coaxial rod (31), the push plate (333) is used to abut against the end of the exhaust pipe (6), the support spring (334) is installed on the coaxial rod (31), and one end of the support spring (334) abuts against the side wall of the push plate (333), and the other end abuts against the end of the thrust sleeve (322).

5. The welding equipment for exhaust pipe of methanol hybrid new energy vehicle according to claim 3 is characterized by: The locking member comprises a locking block (337) and a locking spring (338), wherein the locking block (337) is mounted on the supporting member, and one end of the locking block (337) extends in the direction of the coaxial rod (31), and the axis of the locking block (337) is perpendicular to the axis of the coaxial rod (31), and the inner wall of the coaxial rod (31) is provided with a plurality of locking grooves (312) for the locking block (337) to be inserted, and the plurality of locking grooves (312) are arranged along the length direction of the coaxial rod (31), and the locking block (337) is close to the propulsion sleeve ( A resisting inclined surface (3371) is provided on a side wall of one side of the locking block (337), one end of the resisting inclined surface (3371) extends obliquely from the end of the locking block (337) toward the direction of the pushing sleeve (322) to the side wall of the locking block (337), and the resisting inclined surface (3371) is used to resist the side wall of the locking groove (312) close to one end of the pushing sleeve (322), the locking spring (338) is installed in the supporting member, and the locking spring (338) is connected to the locking block (337), and the locking block (337) is also connected to the unlocking member.

6. The welding equipment for the exhaust pipe of a methanol hybrid new energy vehicle according to claim 5 is characterized in that: The unlocking member comprises an unlocking sleeve (339), an unlocking spring (3310) and an unlocking cylinder (3320); the unlocking sleeve (339) is inserted into the coaxial rod (31), and one end of the unlocking sleeve (339) passes through the end of the coaxial rod (31) and extends into the pushing sleeve (322); a plurality of unlocking grooves (3391) which coincide with the plurality of locking grooves (312) on the coaxial rod (31) are also provided on the side wall of the unlocking sleeve (339); the unlocking grooves (3391) are also used for the locking block (337) to pass through; and the side wall of the unlocking groove (3391) close to one end of the pushing sleeve (322) is used to abut against the locking block (337). The unlocking sleeve (339) is provided with a guiding inclined surface (3392) at one end of the unlocking groove (3391) away from the propulsion sleeve (322), and the guiding inclined surface (3392) is used to contact the locking block (337). The unlocking spring (3310) is installed on the side wall of one end of the unlocking sleeve (339) located in the propulsion sleeve (322), and the unlocking spring (3310) is also connected to the coaxial rod (31). The unlocking cylinder (3320) is installed in the propulsion sleeve (322), and the piston rod of the unlocking cylinder (3320) is used to push the unlocking sleeve (339) in the direction of the splicing column (313).

7. The welding equipment for exhaust pipe of methanol hybrid new energy vehicle according to claim 2 is characterized by: The welding table (1) is also provided with a lifting assembly (5), the lifting assembly (5) comprising a lifting cylinder (51) and a supporting block (52), the lifting cylinder (51) being vertically mounted on the welding table (1), and the piston rod of the lifting cylinder (51) extending upward, the supporting block (52) having an arc-shaped cross section, and the supporting block (52) being mounted on the piston rod of the lifting cylinder (51), and the arc-shaped portion of the supporting block (52) being used to lift the coaxial rod (31).

8. The welding equipment for exhaust pipe of methanol hybrid new energy vehicle according to claim 1 is characterized by: The driving mechanism (4) comprises a clamping assembly (41) and a rotating assembly (42); the clamping assembly (41) comprises a first clamping sleeve (411), a first clamping cylinder (412), a first clamping block (413), a second clamping sleeve (414), a second clamping cylinder (415) and a second clamping block (416); the first clamping sleeve (411) is mounted on the welding table (1) near the splicing mechanism (3), and the first clamping sleeve (411) is used to be sleeved on the outer wall of the exhaust pipe (6); the first clamping cylinder (412) is mounted at the end of the first clamping sleeve (411), and the piston rod of the first clamping cylinder (412) extends in the direction of the exhaust pipe (6); the first clamping block (413) is mounted on the piston rod of the first clamping cylinder (412), and the The first clamp (413) is used to abut against the side wall of the exhaust pipe (6); the second jacket (414) is installed on the welding table (1) away from the splicing mechanism (3), and the second jacket (414) is used to be sleeved on the pipe of the muffler (7); the second clamping cylinder (415) is installed at the end of the second jacket (414), and the piston rod of the second clamping cylinder (415) extends in the direction of the pipe of the muffler (7); the second clamp (416) is installed on the piston rod of the second clamping cylinder (415), and the second clamp (416) is used to abut against the side wall of the pipe of the muffler (7); the rotating assembly (42) is installed on the welding table (1), and the first jacket (411) and the second jacket (414) are both connected to the rotating assembly (42).

9. The welding equipment for exhaust pipe of methanol hybrid new energy vehicle according to claim 8 is characterized by: The rotating assembly (42) comprises a first rotating motor (421), a first rotating wheel (422), a first transmission wheel (423), a first synchronous belt (424), a second rotating motor (425), a second rotating wheel (426), a second transmission wheel (427) and a second synchronous belt (428), wherein the first rotating motor (421) is mounted on the welding table (1), the first rotating wheel (422) is coaxially mounted on the output shaft of the first rotating motor (421), and the first transmission wheel (423) is coaxially mounted on the output shaft of the first rotating motor (421). The welding table (1) is installed on the first sleeve (411), the first synchronous belt (424) connects the first rotating wheel (422) with the first transmission wheel (423), the second rotating motor (425) is also installed on the welding table (1), the second rotating wheel (426) is coaxially installed on the output shaft of the second rotating motor (425), the second transmission wheel (427) is coaxially installed on the second sleeve (414), and the second synchronous belt (428) connects the second rotating wheel (426) with the second transmission wheel (427).

10. The welding equipment for exhaust pipe of methanol hybrid new energy vehicle according to claim 1, characterized in that: The welding mechanism (2) comprises a welding mechanical arm (21) and a welding gun (22); the welding mechanical arm (21) is mounted on a welding table (1), and the welding mechanical arm (21) is located at a splicing position of a pipe of an exhaust pipe (6) and a muffler (7); the welding gun (22) is mounted on an output end of the welding mechanical arm (21), and the welding gun (22) is used to weld the splicing position of the pipe of the exhaust pipe (6) and the muffler (7).

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