A fixture for post-processing assembly welding

Abstract

The present application relates to a fixture for welding a post-processing assembly, which includes a crossbeam, two gantries, a first driving mechanism, a first clamping mechanism, a first mounting plate, two second driving mechanisms and a second clamping mechanism; at least one of the two gantries is movably arranged on the crossbeam; the first driving mechanism is connected to the gantries and is used to drive the gantries to move so as to adjust the distance between the two gantries; the first clamping mechanism is arranged on the gantries and is used to clamp the post-processing housing; the first mounting plate includes two mounting sub-plates; the two second driving mechanisms are respectively arranged on the two gantries, and the bottom ends are respectively connected to the two mounting sub-plates to drive the mounting sub-plates to move up and down; the second clamping mechanism is arranged on the mounting sub-plate and is used to clamp the exhaust sub-assembly. Since mechanical devices are used for clamping and docking, compared with manual methods, the present application can improve work efficiency, improve docking accuracy, and avoid welding defects, defective products and other quality problems in welding.

Description

Technical Field

[0001] The present application relates to the technical field of post-processing assembly assembly, and in particular to a clamp for welding a post-processing assembly. Background Art

[0002] At present, there are no special fixtures for welding automobile exhaust sub-assemblies and after-treatment shells on the market. They are mainly assembled manually, so the welding process is troublesome and prone to inaccurate positioning, which will cause uneven welds of assembled parts and high and low mating parts. Quality problems such as welding defects and defective products will occur during welding, which reduces work efficiency and increases production costs. Summary of the invention

[0003] The embodiment of the present application provides a clamp for welding a post-processing assembly, which can clamp the exhaust sub-assembly and the post-processing housing to facilitate welding and improve work efficiency.

[0004] The embodiment of the present application provides a fixture for welding a post-processing assembly, which includes:

[0005] beam;

[0006] two gantries, at least one of which is movably mounted on the crossbeam;

[0007] A first driving mechanism is connected to the gantry and is used to drive the gantry to move so as to adjust the distance between the two gantries;

[0008] A first clamping mechanism, which is disposed on the gantry and is used to clamp the post-processing housing;

[0009] A first mounting plate, comprising two mounting sub-plates;

[0010] Two second driving mechanisms are respectively arranged on the two gantries, and the bottom ends of the second driving mechanisms are respectively connected to two mounting sub-plates to drive the mounting sub-plates to move up and down;

[0011] The second clamping mechanism is arranged on the mounting sub-plate and is used for clamping the exhaust sub-assembly.

[0012] In the embodiment of the present application, the first driving mechanism is used to drive the gantry to move, and then the appropriate distance between the two gantries is adjusted, and then the first clamping mechanism is used to clamp and fix the post-processing housing, and then the second clamping mechanism is used to clamp the exhaust sub-assembly, and the second driving mechanism is used to drive the mounting sub-plate to move toward the post-processing housing to dock the two, and finally the exhaust sub-assembly and the post-processing housing are welded. Since mechanical devices are used for clamping and moving docking, the present application can improve work efficiency compared to manual methods.

[0013] Since mechanical devices are used for docking, compared with manual methods, this application can improve the docking accuracy and avoid quality problems such as welding defects and defective products during welding as much as possible.

[0014] In some embodiments, in order to ensure that the two mounting sub-plates rise or fall synchronously in the same plane to achieve docking of the exhaust sub-assembly and the after-treatment housing, and to avoid docking failure or welding defects, defective products and other quality problems due to height differences on the left and right sides of the exhaust sub-assembly, the clamp also includes a synchronization mechanism for moving the two mounting sub-plates synchronously under the drive of two second driving mechanisms.

[0015] In some embodiments, the synchronization mechanism includes a connecting piece with one end connected to the upper surface of one of the mounting sub-boards, and the other end of the connecting piece extends to the upper surface of the other mounting sub-board.

[0016] In some embodiments, the gantry is rotatably connected to a horizontally arranged rotating arm, the rotating arm is connected to a second mounting plate, and the second driving mechanism is mounted on the second mounting plate;

[0017] The gantry is also provided with a third driving mechanism, which is connected to the rotating arm to drive the rotating arm to rotate around its own axis.

[0018] In some embodiments, in order to ensure the rigidity and durability of the overall structure, the clamp also includes a gantry locking and positioning mechanism, and the gantry locking and positioning mechanism includes two inserts that can be embedded with each other, and the two inserts are respectively arranged on the two second mounting plates.

[0019] In some embodiments, the first clamping mechanism includes a plurality of first clamping sub-mechanisms, and the first clamping sub-mechanisms include:

[0020] An abutment block having a curved surface adapted to the post-processing housing;

[0021] The fourth driving mechanism is arranged on the gantry, and the fourth driving mechanism is connected to the abutment block and is used to drive the abutment block to approach or move away from the post-processing housing.

[0022] In some embodiments, the second clamping mechanism comprises:

[0023] A vacuum suction cup mechanism is arranged on the bottom surface of the mounting sub-plate;

[0024] A plurality of second clamping sub-mechanisms, wherein the second clamping sub-mechanisms are mounted on the bottom surface of one of the mounting sub-plates, and include:

[0025] - First shot;

[0026] - a second rod, the upper and lower ends of which are rotatably connected to the middle of the first rod and the mounting sub-plate respectively;

[0027] - A fifth driving mechanism, which is rotatably connected to one end of the first rod and is used to drive the first rod to rotate around the second rod to press the exhaust port of the exhaust sub-assembly.

[0028] In some embodiments, the crossbeam is further provided with a first positioning mechanism for installing and positioning the post-processing housing.

[0029] In some embodiments, the mounting sub-plate is further provided with a second positioning mechanism for mounting and positioning the exhaust sub-assembly.

[0030] In some embodiments, the fixture further includes a mounting platform and a sixth driving mechanism, both ends of the beam are rotatably connected to the mounting platform, and the sixth driving mechanism is connected to the beam and is used to drive the beam to rotate around its axis.

[0031] The beneficial effects of the technical solution provided by this application include:

[0032] In the present application, the first driving mechanism is used to drive the gantry to move, and then the appropriate distance between the two gantries is adjusted, and then the first clamping mechanism is used to clamp and fix the post-processing housing, and then the second clamping mechanism is used to clamp the exhaust sub-assembly, and the second driving mechanism is used to drive the mounting sub-board to move toward the post-processing housing to dock the two, and finally the exhaust sub-assembly and the post-processing housing are welded. Since mechanical devices are used for clamping and moving docking, the present application can improve work efficiency compared to manual methods.

[0033] Since mechanical devices are used for docking, compared with manual methods, this application can improve the docking accuracy and avoid quality problems such as welding defects and defective products during welding as much as possible.

[0034] The present application is also provided with a synchronization mechanism, which can ensure that the two mounting sub-plates rise or fall synchronously in the same plane to achieve the docking of the exhaust sub-assembly and the after-treatment housing, avoiding docking failure due to the height difference between the left and right sides of the exhaust sub-assembly or the occurrence of welding defects, defective products and other quality problems.

[0035] The present application is also provided with a gantry locking and positioning mechanism, including two inserts that can be embedded with each other, and the two inserts are respectively arranged on two second mounting plates, which can ensure the rigidity and durability of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0037] Figure 1 A front view of a fixture for welding a post-processing assembly provided in an embodiment of the present application;

[0038] Figure 2 A schematic diagram of a perspective view of a fixture for welding a post-processing assembly provided in an embodiment of the present application (with a post-processing assembly installed);

[0039] Figure 3 A schematic diagram of another perspective of a fixture for welding a post-processing assembly provided in an embodiment of the present application (with a post-processing assembly installed);

[0040] Figure 4 A schematic diagram of a second clamping mechanism provided in an embodiment of the present application;

[0041] Figure 5 A schematic diagram of a vacuum suction cup mechanism provided in an embodiment of the present application;

[0042] Figure 6 A schematic diagram of a fixture for welding a post-processing assembly provided in an embodiment of the present application (the post-processing assembly is not installed);

[0043] Figure 7 A schematic diagram of an air inlet positioning mechanism provided in an embodiment of the present application from one viewing angle;

[0044] Figure 8 A schematic diagram of the air inlet positioning mechanism provided in an embodiment of the present application from another perspective.

[0045] In the figure: 1, crossbeam; 2, gantry; 3, first driving mechanism; 4, first clamping mechanism; 5, first mounting plate; 6, mounting sub-plate; 7, second driving mechanism; 8, second clamping mechanism; 9, post-processing housing; 10, exhaust sub-assembly; 11, rotating arm; 12, second mounting plate; 13, third driving mechanism; 14, connecting piece; 15, insert; 16, abutment block; 17, fourth driving mechanism; 18, vacuum suction cup mechanism; 19, first rod; 20 , second rod; 21, fifth drive mechanism; 22, exhaust port; 23, first positioning mechanism; 24, second positioning mechanism; 25, first guide rail; 26, second guide rail; 27, gear; 28, slider; 29, air inlet; 30, large disc positioning member; 31, small disc positioning member; 32, positioning column; 33, first guide mechanism; 34, third mounting plate; 35, seventh drive mechanism; 36, third guide rail; 37, fourth mounting plate; 38, clamping assembly. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0047] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, an embodiment of the present application provides a fixture for welding a post-processing assembly, which includes a crossbeam 1, two gantries 2, a first driving mechanism 3, a first clamping mechanism 4, a first mounting plate 5, two second driving mechanisms 7 and a second clamping mechanism 8; wherein, at least one of the two gantries 2 is movably arranged on the crossbeam 1, the first driving mechanism 3 is connected to the gantry 2, and is used to drive the gantry 2 to move so as to adjust the distance between the two gantries 2; the first clamping mechanism 4 is arranged on the gantry 2, and is used to clamp the post-processing housing 9; the first mounting plate 5 includes two mounting sub-plates 6, and the two mounting sub-plates 6 are arranged horizontally; the two second driving mechanisms 7 are respectively arranged on the two gantries 2, and the bottom ends are respectively connected to the two mounting sub-plates 6 to drive the mounting sub-plates 6 to move up and down; the second clamping mechanism 8 is arranged on the mounting sub-plate 6, and is used to clamp the exhaust sub-assembly 10.

[0048] In the present application, the first driving mechanism 3 is used to drive the gantry 2 to move, and then the appropriate distance between the two gantries 2 is adjusted, and then the first clamping mechanism 4 is used to clamp and fix the post-processing housing 9, and then the second clamping mechanism 8 is used to clamp the exhaust sub-assembly 10, and the second driving mechanism 7 drives the mounting sub-plate 6 to move toward the post-processing housing 9 to dock the two, and finally the exhaust sub-assembly 10 and the post-processing housing 9 are welded. Since mechanical devices are used for clamping and moving docking, the present application can improve work efficiency compared with manual methods.

[0049] Since mechanical devices are used for docking, compared with manual methods, this application can improve the docking accuracy and avoid quality problems such as welding defects and defective products during welding as much as possible.

[0050] In some preferred embodiments, see Figure 2 As shown, both gantries 2 can move on the crossbeam 1. To facilitate movement, one of the gantry 2 and the crossbeam 1 is provided with a first groove, and the other is provided with a first guide rail 25 matched with the first groove. There are two first driving mechanisms 3, and each gantry 2 is correspondingly connected to a first driving mechanism 3.

[0051] Since in the above embodiment, the second clamping mechanism 8 moves up and down driven by the two mounting sub-plates 6, and the two mounting sub-plates 6 are driven by the two second driving mechanisms 7, in order to ensure that the two mounting sub-plates 6 rise or fall synchronously in the same plane to achieve the docking of the exhaust sub-assembly 10 and the post-treatment housing 9, to avoid docking failure due to the height difference between the left and right sides of the exhaust sub-assembly 10 or the occurrence of welding defects, defective products and other quality problems, in some preferred embodiments, the clamp also includes a synchronization mechanism for making the two mounting sub-plates 6 move synchronously under the drive of the two second driving mechanisms 7.

[0052] Taking the second drive mechanism 7 as a cylinder as an example, during use, when the exhaust sub-assembly 10 moves downward to dock with the after-treatment housing 9, the intake amount pushed by the second drive mechanism 7 corresponding to the mounting sub-plate 6 connected with the connecting plate 14 is greater than the intake amount pushed by another second drive mechanism 7.

[0053] When welding is completed, the air intake amount of the retracted second driving mechanism 7 corresponding to the mounting sub-plate 6 connected with the connecting piece 14 is smaller than the air intake amount of the retracted second driving mechanism 7 .

[0054] To achieve synchronization, see Figure 2 As shown, in a preferred embodiment, the synchronization mechanism includes a connecting piece 14 having one end connected to the upper surface of one of the mounting sub-plates 6, and the other end of the connecting piece 14 extends to the upper surface of the other mounting sub-plate 6. There can be multiple connecting pieces 14. The connecting piece 14 can also be rotatably connected to the mounting sub-plate 6.

[0055] Since the exhaust subassembly 10 is relatively large and heavy, in order to facilitate the installation of the exhaust subassembly 10 on the second clamping mechanism 8, see Figure 2 As shown, in some preferred embodiments, a horizontally arranged rotating arm 11 is rotatably connected to the gantry 2, a second mounting plate 12 is connected to the rotating arm 11, and the second driving mechanism 7 is installed on the second mounting plate 12; a third driving mechanism 13 is also provided on the gantry 2, and the third driving mechanism 13 is connected to the rotating arm 11 to drive the rotating arm 11 to rotate around its own axis.

[0056] In this embodiment, the third driving mechanism 13 is used to drive the rotating arm 11 to rotate around its own axis, for example, to rotate toward the side where the assembler is located, so that the bottom surface of the mounting sub-plate 6 faces upward and the second clamping mechanism 8 faces upward. The assembler can use tools such as a robotic arm to easily lower the exhaust sub-assembly 10 onto the second clamping mechanism 8 and clamp it.

[0057] In order to realize the rotation of the rotating arm 11, see Figure 3As shown, a gear 27 is provided on the rotating arm 11, a second vertically arranged guide rail 26 is provided on the gantry 2, a slider 28 is connected to the telescopic drive shaft of the third driving mechanism 13, the slider 28 is slidably arranged on the second guide rail 26, and a rack meshing with the gear 27 is provided on the slider. When the third driving mechanism 13 drives the slider 28 to move up and down on the second guide rail 26, the slider 28 meshes with the gear 27, thereby driving the rotating arm 11 to rotate.

[0058] In order to ensure the rigidity and durability of the overall structure, see Figure 1 As shown, in some preferred embodiments, the fixture further includes a gantry locking and positioning mechanism, which includes two inserts 15 that can be interlocked with each other, and the two inserts 15 are respectively arranged on the two second mounting plates 12. When the first driving mechanism 3 drives the two gantries 2 to move until the two inserts 15 are interlocked, the two second mounting plates 12 can avoid height difference misalignment in the vertical direction.

[0059] In order to achieve the clamping of the post-processing housing 9, see Figure 3 As shown, in some preferred embodiments, the first clamping mechanism 4 includes a plurality of first clamping sub-mechanisms, the first clamping sub-mechanisms include an abutment block 16 and a fourth driving mechanism 17, wherein, in order to better abut the post-processing housing 9, the abutment block 16 has an arc surface adapted to the post-processing housing 9, and the fourth driving mechanism 17 is arranged on the gantry 2, the fourth driving mechanism 17 is connected to the abutment block 16, and is used to drive the abutment block 16 close to or away from the post-processing housing 9.

[0060] The number of the first clamping sub-mechanisms can be set according to actual needs. For example, the first clamping sub-mechanisms can be set to 7, two of which abut against the left side of the post-processing housing 9, two abut against the right side of the post-processing housing 9, and two abut against the rear side of the post-processing housing 9. Since the front side of the post-processing housing 9 has an air inlet 29 (such as Figure 2 As shown), the last one abuts the front side of the post-processing housing 9.

[0061] In order to achieve the clamping of the exhaust sub-assembly 10, see Figure 4 and Figure 5As shown, in some preferred embodiments, the second clamping mechanism 8 includes a vacuum suction cup mechanism 18 and a plurality of second clamping sub-mechanisms. There may be a plurality of vacuum suction cup mechanisms 18. The vacuum suction cup mechanism 18 is arranged on the bottom surface of the mounting sub-plate 6. The vacuum suction cup mechanism 18 uses existing equipment to make the suction cup absorb the exhaust sub-assembly 10 by vacuuming. The vacuum suction cup mechanism 18 can be arranged on both mounting sub-plates 6. Since the exhaust sub-assembly 10 has an exhaust port 22, the second clamping sub-mechanism is installed on the bottom surface of one of the mounting sub-plates 6. The second clamping sub-mechanism includes a first rod 19, a second rod 20 and a fifth driving mechanism 21. The upper and lower ends of the second rod 20 are respectively The fifth driving mechanism 21 is rotatably connected to the middle part of the first rod 19 and the mounting sub-plate 6, and the telescopic driving shaft of the fifth driving mechanism 21 is rotatably connected to one end of the first rod 19. The fifth driving mechanism 21 drives the first rod 19 to rotate around the second rod 20, so that the free end of the first rod 19 is pressed against the exhaust port 22 of the exhaust sub-assembly 10. The first rods 19 of the plurality of second clamping sub-mechanisms are arranged around the circumference of the exhaust port 22 to achieve radial clamping of the exhaust port 22. At the same time, since the free end of the first rod 19 presses the exhaust port 22 downward, and the vacuum suction cup mechanism 18 absorbs the exhaust sub-assembly 10 upward, the two cooperate to achieve axial clamping of the exhaust sub-assembly 10.

[0062] See also Figure 6 As shown, the cross beam 1 is also provided with a first positioning mechanism 23 for installing and positioning the post-processing housing 9 .

[0063] Since there is a large opening and a small opening at the bottom of the post-processing housing 9, in order to better position it, the first positioning mechanism 23 includes a large disc positioning member 30 and a small disc positioning member 31. The large disc positioning member 30 is adapted to the large opening at the bottom of the post-processing housing 9 to position the large opening, and the small disc positioning member 31 is adapted to the small opening at the bottom of the post-processing housing 9 to position the small opening.

[0064] Since there is a flat portion at the bottom of the post-processing housing 9, in order to better position, the first positioning mechanism 23 further includes a positioning column 32 to position the flat portion at the bottom of the post-processing housing 9. A plurality of positioning columns 32, such as 8, may be provided.

[0065] In order to facilitate the post-processing housing 9 to be placed on the first positioning mechanism 23, see Figure 6 As shown, the cross beam 1 is further provided with a first guide mechanism 33, which has a curved surface adapted to the outer wall of the post-processing housing 9. A plurality of first guide mechanisms 33 may be provided, for example, four, distributed along the circumference of the post-processing housing 9.

[0066] See also Figure 6As shown, the mounting sub-plate 6 is also provided with a second positioning mechanism 24 for mounting and positioning the exhaust sub-assembly 10. The second positioning mechanism 24 includes a plurality of segments, each segment is arranged along the edge of the mounting sub-plate 6, and the segments on the two mounting sub-plates 6 are surrounded by a shape that matches the exhaust sub-assembly 10.

[0067] In order to ensure the convenience of assembly operation of the after-treatment housing 9 and the exhaust sub-assembly 10, the fixture also includes a mounting table and a sixth driving mechanism. The two ends of the beam 1 are rotatably connected to the mounting table. The sixth driving mechanism is connected to the beam 1 and is used to drive the beam 1 to rotate, so that the beam 1 and other components thereon can be flipped as a whole.

[0068] In order to locate the air inlet 29 on the aftertreatment housing 9, see Figure 7 and Figure 8 The gantry 2 is also provided with an air inlet positioning mechanism, which includes a third mounting plate 34, on which a seventh driving mechanism 35 and a third guide rail 36 are provided, on which a fourth mounting plate 37 is slidably provided, and on which a clamping assembly 38 for clamping the air inlet 29 is provided.

[0069] The air inlet 29 is clamped by the clamping assembly 38, and the seventh driving mechanism 35 is connected to the fourth mounting plate 37. The seventh driving mechanism 35 drives the fourth mounting plate 37 to move on the third guide rail 36, so that the air inlet 29 is docked with the post-processing shell 9, and then the air inlet 29 is welded to the post-processing shell 9.

[0070] In order to reduce costs, the above-mentioned clamping assembly 38 can adopt a commonly used clamping claw mechanism, and the above-mentioned first driving mechanism 3, the second driving mechanism 7, the third driving mechanism 13, the fourth driving mechanism 17, the fifth driving mechanism 21, the sixth driving mechanism, and the seventh driving mechanism 35 can all use the form of a cylinder or the form of an oil cylinder. Of course, as long as they can achieve their respective driving purposes, other commonly used driving forms can be applied.

[0071] When used, the clamp for post-processing assembly welding provided in the present application can be operated in the following manner.

[0072] Use a lifting device to grab the post-processing housing 9 and move it toward the clamp for welding the post-processing assembly until it is located above the clamp for welding the post-processing assembly.

[0073] Then the post-processing housing 9 is lowered, and under the guidance of the first guide mechanism 33, the post-processing housing 9 enters the first positioning mechanism 23, that is, the large opening at the bottom of the post-processing housing 9 is positioned with the large disc positioning member 30 of the first positioning mechanism 23, the small opening at the bottom of the post-processing housing 9 is positioned with the small disc positioning member 31 of the first positioning mechanism 23, and the flat part at the bottom of the post-processing housing 9 is positioned with the eight positioning columns 32 of the first positioning mechanism 23. Then the sling is removed and reset.

[0074] The two first driving mechanisms 3 are started, and the gantry 2 is driven to move on the beam 1 by the first driving mechanisms 3, so that the two second mounting plates 12 are close to each other until the two inserts 15 on the two second mounting plates 12 are embedded with each other, thereby preventing the two second mounting plates 12 from being misaligned in the vertical direction.

[0075] The air inlet 29 is mounted on the clamping assembly 38 of the air inlet positioning mechanism, and the seventh driving mechanism 35 is used to drive the fourth mounting plate 37 to move on the third guide rail 36, thereby driving the air inlet 29 clamped by the clamping assembly 38 to move, so that the air inlet 29 is docked with the post-processing housing 9.

[0076] The fourth driving mechanism 17 is started, and the abutting block 16 is driven to approach the post-processing housing 9 by the fourth driving mechanism 17 until the abutting block 16 clamps the post-processing housing 9 .

[0077] The two third driving mechanisms 13 are started to drive the slider 28 to move on the second guide rail 26, thereby driving the gear 27 on the rotating arm 11 to rotate, thereby driving the rotating arm 11 to rotate 100° around its own axis, and finally causing the second clamping mechanism 8 on the mounting sub-plate 6 to rotate 100°.

[0078] The operator stands at an outer point and starts the sixth driving mechanism, and uses the sixth driving mechanism to drive the beam 1 to rotate around its axis, so that the beam 1 and other components thereon rotate 80° as a whole in the direction where the operator is located.

[0079] The exhaust sub-assembly 10 is installed on the second clamping mechanism 8 on the mounting sub-plate 6 by using a hanger or manually. Specifically, the exhaust sub-assembly 10 is first positioned by using the second positioning mechanism 24, and then the fifth driving mechanism 21 is started. The fifth driving mechanism 21 is used to drive the first rod 19 to rotate around the second rod 20, so that the free end of the first rod 19 is pressed against the exhaust port 22 of the exhaust sub-assembly 10. At the same time, the vacuum suction cup mechanism 18 is started. The vacuum suction cup of the vacuum suction cup mechanism 18 generates a vacuum and is adsorbed on the exhaust sub-assembly 10. A plurality of second clamping sub-mechanisms are used to clamp the exhaust port 22 in the radial direction. The free end of the first rod 19 is used to press the exhaust port 22 downward, and the vacuum suction cup mechanism 18 is used to adsorb the exhaust sub-assembly 10 upward. The two work together to clamp the exhaust sub-assembly 10 in the axial direction, and finally the exhaust sub-assembly 10 is clamped.

[0080] The two third driving mechanisms 13 are started to drive the slider 28 to move on the second guide rail 26, thereby driving the gear 27 on the rotating arm 11 to rotate, thereby driving the rotating arm 11 to rotate back 100° around its own axis, and finally causing the second clamping mechanism 8 on the mounting sub-plate 6 to rotate back 100° to return to the initial position.

[0081] The two second driving mechanisms 7 are started, and the two mounting sub-plates 6 are driven to move downward synchronously through the two second driving mechanisms 7, thereby driving the exhaust sub-assembly 10 clamped by the second clamping mechanism 8 to move toward the after-treatment housing 9 until the after-treatment housing 9 is docked with the exhaust sub-assembly 10. Before driving, the connecting piece 14 is used to achieve synchronous movement of the two mounting sub-plates 6.

[0082] The sixth driving mechanism is started and used to drive the crossbeam 1 to rotate around its axis, so that the crossbeam 1 and other components thereon are rotated back 80° as a whole to return to the initial position.

[0083] The after-treatment housing 9, the air inlet 29 and the exhaust sub-assembly 10 are welded.

[0084] After welding is completed, the synchronous movement of the installed sub-plate 6 is released, and the fifth driving mechanism 21 is used to drive the first rod 19 to rotate around the second rod 20, thereby releasing the pressure of the free end of the first rod 19 on the exhaust port 22 of the exhaust sub-assembly 10, and releasing the adsorption effect of the vacuum suction cup mechanism 18 on the vacuum suction cup mechanism 18.

[0085] The two second driving mechanisms 7 are used to drive the two mounting sub-plates 6 to move upward, so that the second clamping mechanism 8 is separated from the exhaust sub-assembly 10 .

[0086] The fourth driving mechanism 17 is started, and the abutting block 16 is driven to move away from the post-processing housing 9 by the fourth driving mechanism 17 until the abutting block 16 releases the post-processing housing 9 .

[0087] The clamping effect of the clamping assembly 38 on the air inlet 29 is released, and the seventh driving mechanism 35 is used to drive the fourth mounting plate 37 to move on the third guide rail 36 , thereby driving the clamping assembly 38 to leave the air inlet 29 .

[0088] The welded post-processing housing 9, air inlet 29 and exhaust sub-assembly 10 are hoisted as a whole by using a hoist.

[0089] Repeat the above process to weld the next post-processing assembly.

[0090] In summary, the clamp for welding the post-processing assembly provided in the embodiment of the present application uses the first driving mechanism 3 to drive the gantry 2 to move, and then adjust the appropriate distance between the two gantries 2, and then use the first clamping mechanism 4 to clamp and fix the post-processing housing 9, and then use the second clamping mechanism 8 to clamp the exhaust sub-assembly 10, and drive the mounting sub-plate 6 to move toward the post-processing housing 9 through the second driving mechanism 7 to dock the two, and finally weld the exhaust sub-assembly 10 and the post-processing housing 9. Since mechanical devices are used for clamping and moving docking, the present application can improve work efficiency compared to manual methods.

[0091] Since mechanical devices are used for docking, compared with manual methods, this application can improve the docking accuracy and avoid quality problems such as welding defects and defective products during welding as much as possible.

[0092] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0093] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0094] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A fixture for post-processing assembly welding, characterized in that: It includes: Beam (1); Two gantries (2), at least one of which is movably disposed on the crossbeam (1); A first driving mechanism (3) connected to the gantry (2) and used to drive the gantry (2) to move so as to adjust the distance between the two gantries (2); A first clamping mechanism (4), which is disposed on the gantry (2) and is used to clamp the post-processing housing (9); A first mounting plate (5), comprising two mounting sub-plates (6); Two second driving mechanisms (7) are respectively arranged on the two gantries (2), and the bottom ends of the second driving mechanisms (7) are respectively connected to two mounting sub-plates (6) to drive the mounting sub-plates (6) to move up and down; A second clamping mechanism (8) is disposed on the mounting sub-plate (6) and is used to clamp the exhaust sub-assembly (10); The gantry (2) is rotatably connected to a horizontally arranged rotating arm (11), the rotating arm (11) is connected to a second mounting plate (12), and the second driving mechanism (7) is mounted on the second mounting plate (12); The clamp also includes a gantry locking and positioning mechanism, which includes two inserts (15) that can be embedded with each other, and the two inserts (15) are respectively arranged on the two second mounting plates (12).

2. The fixture for welding the post-processing assembly according to claim 1, characterized in that: The clamp also includes a synchronization mechanism for causing the two mounting sub-plates (6) to move synchronously under the drive of two second driving mechanisms (7).

3. The fixture for welding the post-processing assembly according to claim 2, characterized in that: The synchronization mechanism comprises a connecting piece (14) having one end connected to the upper surface of one of the mounting sub-plates (6), and the other end of the connecting piece (14) extending to the upper surface of the other mounting sub-plate (6).

4. The fixture for welding the post-processing assembly according to claim 1, characterized in that: The gantry (2) is also provided with a third driving mechanism (13), and the third driving mechanism (13) is connected to the rotating arm (11) to drive the rotating arm (11) to rotate around its own axis.

5. The fixture for welding the post-processing assembly according to claim 1, characterized in that: The first clamping mechanism (4) comprises a plurality of first clamping sub-mechanisms, wherein the first clamping sub-mechanisms comprise: An abutment block (16) having a curved surface adapted to the post-processing housing (9); A fourth driving mechanism (17) is arranged on the gantry (2); the fourth driving mechanism (17) is connected to the abutment block (16) and is used to drive the abutment block (16) to move closer to or farther from the post-processing housing (9).

6. The fixture for welding the post-processing assembly according to claim 1, characterized in that: The second clamping mechanism (8) comprises: A vacuum suction cup mechanism (18) is arranged on the bottom surface of the mounting sub-plate (6); A plurality of second clamping sub-mechanisms, wherein the second clamping sub-mechanisms are mounted on the bottom surface of one of the mounting sub-plates (6), and include: - first rod (19); - a second rod (20), the upper and lower ends of which are rotatably connected to the middle of the first rod (19) and the mounting sub-plate (6); - a fifth driving mechanism (21), which is rotatably connected to one end of the first rod (19) and is used to drive the first rod (19) to rotate around the second rod (20) to press the exhaust port (22) of the exhaust sub-assembly (10).

7. The fixture for welding the post-processing assembly according to claim 1, characterized in that: The crossbeam (1) is also provided with a first positioning mechanism (23) for installing and positioning the post-processing housing (9).

8. The fixture for welding the post-processing assembly according to claim 1, characterized in that: The mounting sub-plate (6) is also provided with a second positioning mechanism (24) for mounting and positioning the exhaust sub-assembly (10).

9. The fixture for welding the post-processing assembly according to claim 1, characterized in that: The clamp further comprises a mounting platform and a sixth driving mechanism, both ends of the beam (1) are rotatably connected to the mounting platform, and the sixth driving mechanism is connected to the beam (1) and is used to drive the beam (1) to rotate around its axis.

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