Welding positioning tool and natural gas emission processor welding manufacturing system

Abstract

The utility model relates to the technical field of natural gas emission processor positioning, in particular to a welding positioning tool and a natural gas emission processor welding manufacturing system. In the welding positioning tool, a first supporting mechanism is installed on a base and located between a second supporting mechanism and a third supporting mechanism, and a first pressing mechanism is installed on the base and arranged to be capable of pressing a three-way catalyst installation module on the first supporting mechanism; the second pressing mechanism is arranged to be capable of pressing the inlet end cone module on the second supporting mechanism and enabling the inlet end cone module to be in butt joint with the inlet side of the three-way catalyst mounting module; and the third pressing mechanism is arranged to be capable of pressing the outlet end cone module on the third supporting mechanism and enabling the outlet end cone module to be in butt joint with the outlet side of the three-way catalyst mounting module. The welding and positioning tool can be specially matched with welding and manufacturing of the welding and positioning tool, the time for welding and manufacturing the natural gas emission processor is shortened, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to natural gas emission treater positioning technical field, concretely relates to welding positioning frock and natural gas emission treater welding manufacturing system. BACKGROUND

[0002] As shown in Figure 1 The natural gas emission treater includes an outlet end cone module, a three-way catalyst installation module, and an inlet end cone module. The general process of welding the natural gas emission treater is as follows: (1) the inlet end cone module is butted against the inlet side of the three-way catalyst installation module, and then the two are welded together; (2) the outlet end cone module is butted against the outlet side of the three-way catalyst installation module, and then the two are welded together.

[0003] However, there is currently a lack of special positioning frock for the natural gas emission treater, and the welding operation can only be performed on two independent positioning frocks. That is, the welding of the outlet end cone module and the three-way catalyst installation module is performed on the first positioning frock, and the welding of the outlet end cone module and the three-way catalyst installation module is performed on the second positioning frock.

[0004] Since the process of welding the natural gas emission treater needs to be performed on two positioning frocks respectively, and the three-way catalyst installation module and the inlet end cone module need to be transferred from the first positioning frock to the second positioning frock, the time for welding the natural gas emission treater is relatively long, and the production efficiency is reduced. SUMMARY

[0005] The utility model aims at overcoming the problem of long welding time of the natural gas emission treater due to the lack of special positioning frock in the prior art.

[0006] In order to achieve the above object, the utility model provides a kind of welding positioning tool, the welding positioning tool includes base, first support mechanism, first pressing mechanism, second support mechanism, second pressing mechanism, third support mechanism and third pressing mechanism;First support mechanism is installed in base and is located between second support mechanism and third support mechanism, first support mechanism is set as being able to vertically support three-way catalyst installation module, first pressing mechanism is installed in base and is set as being able to press three-way catalyst installation module on first support mechanism;Second support mechanism is installed in base and is set as being able to vertically support import end cone module;Second pressing mechanism is installed in base, and second pressing mechanism is set as being able to press import end cone module on second support mechanism and make it with the import side of three-way catalyst installation module butt joint;Third support mechanism is installed in base and is set as being able to vertically support export end cone module;Third pressing mechanism is installed in base, and third pressing mechanism is set as being able to press export end cone module on third support mechanism and make it with the export side of three-way catalyst installation module butt joint.

[0007] In some embodiments, the first support mechanism includes a first support column and a first positioning plate, the first support column is installed on the top surface of the base, the first positioning plate is installed on the top of the first support column, and the first positioning plate is arranged in an arc shape with an opening facing upward to adapt to the bottom of the three-way catalyst installation module;Preferably, the first pressing mechanism includes a first pressing cylinder, a first pressing arm and a first pressing plate;The cylinder body portion of the first pressing cylinder is installed on the side of the first positioning plate, the first pressing plate is connected to the swing arm of the first pressing cylinder by the first pressing arm, the first pressing arm and the first pressing plate are located above the first positioning plate, and the first pressing cylinder can drive the first pressing plate to rotate between a first non-pressing position away from the top surface of the three-way catalyst installation module and a first pressing position contacting the top surface of the three-way catalyst installation module.

[0008] In some embodiments, the second support mechanism includes a three-jaw cylinder and a jaw operating mechanism;The cylinder body portion of the three-jaw cylinder is installed on the top surface of the base, a pad is installed on the top of the cylinder body portion of the three-jaw cylinder, a stop plate is provided on the top of the pad, and the stop plate can press against the inlet side of the three-way catalyst installation module;The outer side of the clamping jaw of the three-jaw cylinder is provided with a support block, and arc-shaped first protective plates are installed on both sides of the top of the support block;The clamping jaw of the three-jaw cylinder can drive the first protective plates to move radially, and when the first protective plates move radially inward, all the first protective plates can be spliced to form a first annular baffle surrounding the air inlet cylinder of the import end cone module;The jaw operating mechanism includes a first operating rod, a first connecting rod and a second connecting rod, the distal end of the first connecting rod is hinged to the support block, and the distal end of the first operating rod is hinged to the proximal end of the first connecting rod;The distal end of the first operating rod is fixedly connected to the proximal end of the second connecting rod, the distal end of the second connecting rod is hinged to the base, and the included angle between the first operating rod and the second connecting rod is obtuse.

[0009] In some embodiments, the second pressing mechanism comprises a second support column, a second pressing cylinder, a second pressing arm and a second pressing plate; the second support column is installed on the top surface of the base, the cylinder body part of the second pressing cylinder is installed on the second support column, the second pressing plate is connected to the swing arm of the second pressing cylinder through the second pressing arm, the second pressing arm and the second pressing plate are located above the second support mechanism, the second pressing cylinder can drive the second pressing plate to rotate between the second non-pressing position away from the top surface of the inlet end cone module and the second pressing position contacting the top surface of the inlet end cone module; preferably, the top of the base is provided with a support table, and the second support column is installed on the top of the support table; more preferably, the top surface of the support table is provided with a limiting rack limiting the distance between the inlet end cone module and the three-way catalyst mounting module; more preferably, the welding positioning tool further comprises a fourth pressing mechanism capable of pressing the first lifting lug against the side of the inlet end cone module, and the fourth pressing mechanism is installed on the top of the support table through a fourth support column; more preferably, the fourth pressing mechanism comprises a fourth pressing cylinder, a fourth pressing plate, a first rotary clamping cylinder and a first pressing block; the cylinder body part of the fourth pressing cylinder is installed on the top of the fourth support column, the fourth pressing plate is connected to the piston rod of the fourth pressing cylinder, the lower part of the fourth pressing plate has a first lifting lug pressing surface for pressing the first lifting lug, the cylinder body part of the first rotary clamping cylinder is installed on the top of the fourth pressing plate, the leading end of the first pressing block is connected to the piston rod of the first rotary clamping cylinder, and the trailing end of the first pressing block faces the first lifting lug pressing surface; the first rotary clamping cylinder can drive the first pressing block to rotate circumferentially around the axis of the piston rod, and the first rotary clamping cylinder can drive the first pressing block to move towards or away from the first lifting lug pressing surface to clamp or release the first lifting lug.

[0010] In some embodiments, the welding positioning tool further comprises a shielding mechanism for shielding the end of the air pipe of the three-way catalyst mounting module, and the shielding mechanism is installed on the support table through a fifth support column; preferably, the shielding mechanism comprises a third driving cylinder, a guide plate, a shielding arm and a shielding block; the side of the cylinder body part of the third driving cylinder is installed on the top surface of the support table through the fifth support column, the front part of the cylinder body part of the third driving cylinder is provided with a guide plate, and the guide plate is provided with two guide holes; the lower part of the shielding arm is connected to the piston rod of the third driving cylinder, and the third driving cylinder can drive the shielding arm to move linearly towards or away from the three-way catalyst mounting module; the lower part of the shielding arm is provided with two guide rods, the two guide rods are respectively movably inserted into the two guide holes, and the side of the upper part of the shielding arm facing the three-way catalyst mounting module is provided with a shielding block, and the shielding block can shield the end of the air pipe of the three-way catalyst mounting module.

[0011] In some embodiments, the third supporting mechanism comprises a horizontal moving mechanism, a supporting plate, a second connecting plate and a second positioning plate; the horizontal moving mechanism is installed on the top surface of the base, the supporting plate and the third pressing mechanism are installed on the horizontal moving mechanism, and the horizontal moving mechanism can drive the supporting plate and the third pressing mechanism to move linearly towards or away from the first supporting mechanism; the second positioning plate is connected to the side of the supporting plate facing the first supporting mechanism through the second connecting plate, and the second positioning plate is arranged in an arc shape with the opening facing upwards to adapt to the bottom of the outlet end taper module; preferably, the horizontal moving mechanism comprises a mounting plate and a moving plate; the mounting plate is installed on the top surface of the base through two supporting legs, and the bottom surface of the mounting plate is provided with a first driving cylinder; the top surface of the mounting plate is provided with two parallel sliding rails, and the sliding rails are provided with sliding blocks capable of sliding along the extension direction of the sliding rails; the moving plate is installed on the top surface of the sliding blocks; the supporting plate and the third pressing mechanism are installed on the top surface of the moving plate in a spaced manner; the moving plate is connected with the piston rod of the first driving cylinder, and the first driving cylinder can drive the moving plate to move horizontally towards or away from the first supporting mechanism; more preferably, the horizontal moving mechanism further comprises a second operating rod, a third connecting rod and a fourth connecting rod; the first end of the third connecting rod is hingedly connected to the side of the mounting plate away from the first supporting mechanism, the end of the third connecting rod is fixedly connected to the bottom end of the second operating rod, and the third connecting rod and the second operating rod form an obtuse angle; the first end of the fourth connecting rod is hingedly connected to the bottom end of the second operating rod, and the end of the fourth connecting rod is hingedly connected to the side of the moving plate facing the first supporting mechanism; more preferably, the third pressing mechanism comprises a third supporting column, a third pressing cylinder, a third pressing arm and a third pressing plate; the third supporting column is installed on the top surface of the moving plate, the cylinder body part of the third pressing cylinder is installed on the third supporting column, the third pressing plate is connected to the swing arm of the third pressing cylinder through the third pressing arm, and the third pressing cylinder can drive the third pressing plate to rotate between a third non-pressing position away from the top surface of the outlet end taper module and a third pressing position contacting the top surface of the outlet end taper module.

[0012] In some embodiments, the welding positioning tool further comprises a clamping mechanism for clamping the gas outlet cylinder of the outlet end cone module, the clamping mechanism being mounted to the support plate; preferably, the clamping mechanism comprises a first mounting disc, a second mounting disc, a second driving cylinder and three transmission arms; the first mounting disc and the second mounting disc are respectively mounted to the side of the support plate facing away from the first supporting mechanism and the side of the support plate facing the first supporting mechanism, and the first mounting disc penetrates through the support plate; the first mounting disc is provided with an avoiding hole allowing the piston rod of the second driving cylinder to move through; the front part of the cylinder body part of the second driving cylinder is mounted to the first mounting disc; the three transmission arms are distributed in a circumferential direction around the axis of the piston rod of the second driving cylinder, one end of the transmission arm is fixedly connected to the piston rod of the second driving cylinder, the transmission arm moves through the support plate, and the other end of the transmission arm is located at the side of the second mounting disc facing the second supporting mechanism, and arc-shaped second protective plates are mounted to the two sides of the other end of the transmission arm; the piston rod of the second driving cylinder can drive the second protective plates to move radially through the transmission arms, and when the second protective plates move radially inward, all the second protective plates can be spliced to form a second annular baffle distributed around the gas outlet cylinder of the outlet end cone module; more preferably, the front end of the piston rod of the second driving cylinder is fixedly connected to the transmission arm, and the rear end of the piston rod of the second driving cylinder extends from the rear end of the cylinder body part of the second driving cylinder; a hinged plate is fixedly mounted to the top of the cylinder body part of the second driving cylinder; the clamping mechanism further comprises a third operating rod, the bottom end of the third operating rod is hinged to the rear end of the piston rod of the second driving cylinder, and the middle part of the third operating rod is hinged to the hinged plate.

[0013] In some embodiments, the welding positioning tool further comprises a fifth pressing mechanism capable of pressing the second lug against the side of the outlet end cone module, the fifth pressing mechanism being mounted on the support plate; preferably, the fifth pressing mechanism comprises a fifth pressing cylinder, a connecting arm and a fifth pressing plate, a second rotary clamping cylinder and a second pressing block; the cylinder body part of the fifth pressing cylinder is mounted on the top of the support plate, the fifth pressing plate is connected to the piston rod of the fifth pressing cylinder through the connecting arm, the lower part of the fifth pressing plate is provided with a second lug pressing surface for pressing the second lug, the cylinder body part of the second rotary clamping cylinder is mounted on the upper part of the fifth pressing plate, the piston rod of the first rotary clamping cylinder passes through the upper part of the fifth pressing plate, the leading end of the second pressing block is connected with the piston rod of the second rotary clamping cylinder, and the trailing end of the second pressing block faces the second lug pressing surface; the second rotary clamping cylinder is capable of driving the second pressing block to rotate circumferentially around the axis of the piston rod thereof; the second rotary clamping cylinder is capable of driving the second pressing block to move towards or away from the second lug pressing surface to clamp or release the second lug; more preferably, the fifth pressing mechanism further comprises a first hinged column, a second hinged column and a fourth operating rod; the front part of the piston rod of the fifth pressing cylinder is connected with the connecting arm, the rear part of the piston rod of the fifth pressing cylinder extends from the rear part of the fifth pressing cylinder, the first hinged column is fixedly connected to the rear part of the piston rod of the fifth pressing cylinder, the second hinged column is fixedly connected to the rear part of the cylinder body part of the fifth pressing cylinder, the second hinged column is located below the first hinged column, and the bottom end of the fourth operating rod is hinged to the second hinged column.

[0014] In some embodiments, the welding positioning tool further comprises a sixth pressing mechanism for pressing the positioning block against the side of the three-way catalyst mounting module, the sixth pressing mechanism being mounted on the side of the first positioning plate of the first supporting mechanism, and the first positioning plate being located between the sixth pressing mechanism and the first pressing mechanism; preferably, the sixth pressing mechanism comprises a third rotary clamping cylinder, a rotary arm and a third pressing block; the cylinder body part of the third rotary clamping cylinder is mounted on the side of the first positioning plate, the third pressing block is connected to the piston rod of the third rotary clamping cylinder through the rotary arm, the third rotary clamping cylinder is capable of driving the third pressing block to rotate around the axis thereof, so as to move the third pressing block between a third pressing position capable of pressing the positioning block against the side of the three-way catalyst mounting module and a third non-pressing position away from the side of the three-way catalyst mounting module; the side of the third pressing block facing the three-way catalyst mounting module is provided with a positioning groove for fixing the positioning block.

[0015] The utility model also provides a natural gas discharge processor welding manufacturing system, the natural gas discharge processor welding manufacturing system includes the welding positioning tool of above-mentioned embodiment.

[0016] The above technical scheme of the utility model has the following beneficial effects:

[0017] The inlet end cone module is placed on the second supporting mechanism, and then the second pressing mechanism presses the inlet end cone module, so that the inlet end cone module is fixed between the second supporting mechanism and the second pressing mechanism. The three-way catalyst installation module is placed on the first supporting mechanism, and the inlet end cone module is butted with the inlet side of the three-way catalyst installation module; then the first pressing mechanism presses the three-way catalyst installation module, so that the three-way catalyst installation module is fixed between the first supporting mechanism and the first pressing mechanism, and the inlet end cone module is kept in close butt joint with the inlet side of the three-way catalyst installation module. The outlet end cone module is placed on the third supporting mechanism, and the outlet end cone module is butted with the outlet side of the three-way catalyst installation module; then the third pressing mechanism presses the outlet end cone module, so that the outlet end cone module is fixed between the third supporting mechanism and the third pressing mechanism, and the outlet end cone module is kept in close butt joint with the outlet side of the three-way catalyst installation module. Then the inlet end cone module and the three-way catalyst installation module and the outlet end cone module and the three-way catalyst installation module are welded to form the natural gas emission treater. Therefore, the welding positioning tool of the utility model can be specially adapted to the welding manufacturing of the natural gas emission treater. The process of welding manufacturing the natural gas emission treater only needs to be carried out on the welding positioning tool, without needing to be carried out on two positioning tools respectively, and the three-way catalyst installation module and the inlet end cone module do not need to be transported in the middle, so that the time of welding manufacturing the natural gas emission treater is shortened, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of a natural gas emission treater in an embodiment of the utility model;

[0019] Figure 2 is a schematic view of a welding positioning tool in an embodiment of the utility model;

[0020] Figure 3 is a schematic view of a welding positioning tool in another embodiment of the utility model;

[0021] Figure 4 is a schematic view of a first supporting mechanism and a first pressing mechanism in an embodiment of the utility model;

[0022] Figure 5 is a schematic view of a positioning groove in an embodiment of the utility model;

[0023] Figure 6 is a schematic view of a second supporting mechanism in an embodiment of the utility model;

[0024] Figure 7 is a schematic view of a second pressing mechanism in an embodiment of the utility model;

[0025] Figure 8is a schematic view of the third support mechanism in an embodiment of the utility model;

[0026] Figure 9 is a schematic view of the third support mechanism in another embodiment of the utility model;

[0027] Figure 10 is a schematic view of the third pressing mechanism in another embodiment of the utility model.

[0028] Mark explanation

[0029] 1, base; 11, support table; 111, limit frame; 112, fourth support column; 113, fifth support column; 12, fourth pressing mechanism; 121, fourth pressing cylinder; 122, fourth pressing plate; 123, first rotary clamping cylinder; 124, first pressing block; 13, shielding mechanism; 131, third drive cylinder; 132, guide plate; 133, shielding arm; 134, shielding block;

[0030] 2, first support mechanism; 21, first support column; 22, first positioning plate; 23, sixth pressing mechanism; 231, third rotary clamping cylinder; 232, rotary arm; 233, third pressing block; 234, positioning groove;

[0031] 3, first pressing mechanism; 31, first pressing cylinder; 32, first pressing arm; 33, first pressing plate;

[0032] 4, second support mechanism; 41, three-jaw cylinder; 411, cushion block; 412, stop plate; 413, support block; 414, first protective plate; 42, clamping jaw operating mechanism; 421, first operating rod; 422, first connecting rod; 423, second connecting rod;

[0033] 5, second pressing mechanism; 51, second support column; 52, second pressing cylinder; 53, second pressing arm; 54, second pressing plate;

[0034] 6, third support mechanism; 61, horizontal moving mechanism; 611, mounting plate; 612, moving plate; 613, first drive cylinder; 614, slide rail; 615, sliding block; 616, second operating rod; 617, third connecting rod; 618, fourth connecting rod; 62, support plate; 63, second connecting plate; 64, second positioning plate; 65, clamping mechanism; 651, first mounting disc; 652, second mounting disc; 653, second drive cylinder; 654, transmission arm; 655, second protective plate; 656, hinged plate; 657, third operating rod; 66, fifth pressing mechanism; 661, fifth pressing cylinder; 662, connecting arm; 663, fifth pressing plate; 664, second rotary clamping cylinder; 665, second pressing block; 666, first hinged column; 667, second hinged column; 668, fourth operating rod;

[0035] 7. The third pressing mechanism; 71. The third supporting column; 72. The third pressing cylinder; 73. The third pressing arm; 74. The third pressing plate;

[0036] 8. The natural gas emission processor; 81. The outlet end taper module; 811. The outlet cylinder; 812. The second lifting lug; 813. The air pipe; 82. The three-way catalyst installation module; 821. The positioning block; 83. The inlet end taper module; 831. The inlet cylinder; 832. The first lifting lug. DETAILED DESCRIPTION

[0037] The features and exemplary embodiments of each aspect of the present application will be described in detail below, in order to make the purpose, technical scheme and advantages of the present application more clear and apparent, the present application will be further described in detail below in combination with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by showing examples of the present application.

[0038] As shown in Figures 1 to 3 The present application provides a kind of welding positioning tool, which comprises base 1, first supporting mechanism 2, first pressing mechanism 3, second supporting mechanism 4, second pressing mechanism 5, third supporting mechanism 6 and third pressing mechanism 7. First supporting mechanism 2 is installed in base 1 and is located between second supporting mechanism 4 and third supporting mechanism 6, first supporting mechanism 2 is set to be able to vertically support three-way catalyst installation module 82, first pressing mechanism 3 is installed in base 1 and is set to be able to press three-way catalyst installation module 82 on first supporting mechanism 2. Second supporting mechanism 4 is installed in base 1 and is set to be able to vertically support inlet end taper module 83;Second pressing mechanism 5 is installed in base 1, and second pressing mechanism 5 is set to be able to press inlet end taper module 83 on second supporting mechanism 4 and make it with the inlet side of three-way catalyst installation module 82 butt joint. Third supporting mechanism 6 is installed in base 1 and is set to be able to vertically support outlet end taper module 81;Third pressing mechanism 7 is installed in base 1, and third pressing mechanism 7 is set to be able to press outlet end taper module 81 on third supporting mechanism 6 and make it with the outlet side of three-way catalyst installation module 82 butt joint.

[0039] Specifically, the inlet end taper module 83 is placed on the second supporting mechanism 4, and then the second pressing mechanism 5 presses the inlet end taper module 83, so that the inlet end taper module 83 is fixed between the second supporting mechanism 4 and the second pressing mechanism 5. The three-way catalyst installation module 82 is placed on the first supporting mechanism 2, and the inlet end taper module 83 is butted with the inlet side of the three-way catalyst installation module 82; then the first pressing mechanism 3 presses the three-way catalyst installation module 82, so that the three-way catalyst installation module 82 is fixed between the first supporting mechanism 2 and the first pressing mechanism 3, and the inlet end taper module 83 is kept closely butted with the inlet side of the three-way catalyst installation module 82. The outlet end taper module 81 is placed on the third supporting mechanism 6, and the outlet end taper module 81 is butted with the outlet side of the three-way catalyst installation module 82; then the third pressing mechanism 7 presses the outlet end taper module 81, so that the outlet end taper module 81 is fixed between the third supporting mechanism 6 and the third pressing mechanism 7, and the outlet end taper module 81 is kept closely butted with the outlet side of the three-way catalyst installation module 82. Then the inlet end taper module 83 and the three-way catalyst installation module 82 and the outlet end taper module 81 and the three-way catalyst installation module 82 are welded to form the natural gas emission treater 8.

[0040] In the embodiment, the welding positioning tool of the utility model can be specially adapted to the welding manufacturing of the natural gas emission treater 8. The process of welding manufacturing the natural gas emission treater 8 only needs to be carried out on the welding positioning tool, without needing to be carried out on two positioning tools respectively, and without needing to transfer the three-way catalyst installation module 82 and the inlet end taper module 83 in the middle, so that the time of welding manufacturing the natural gas emission treater 8 is shortened, and the production efficiency is improved.

[0041] As shown in the drawings, Figure 4 In some embodiments of the utility model, the first supporting mechanism 2 includes a first supporting column 21 and a first positioning plate 22, the first supporting column 21 is installed on the top surface of the base 1, and the first positioning plate 22 is installed on the top of the first supporting column 21, and the first positioning plate 22 is set as an arc shape with an opening upward to adapt to the bottom of the three-way catalyst installation module 82.

[0042] Specifically, the three-way catalyst installation module 82 can be placed into the first positioning plate 22 for positioning. And the first pressing mechanism 3 can press the three-way catalyst installation module 82 in the first positioning plate 22 for welding.

[0043] As shown in the drawings, Figure 4As shown, in some embodiments of this utility model, preferably, the first pressing mechanism 3 includes a first pressing cylinder 31, a first pressing arm 32, and a first pressing plate 33; the cylinder body of the first pressing cylinder 31 is mounted on the side of the first positioning plate 22, and the first pressing plate 33 is connected to the swing arm of the first pressing cylinder 31 through the first pressing arm 32. The first pressing arm 32 and the first pressing plate 33 are located above the first positioning plate 22, and the first pressing cylinder 31 can drive the first pressing plate 33 to rotate between a first non-pressing position away from the top surface of the three-way catalyst mounting module 82 and a first pressing position in contact with the top surface of the three-way catalyst mounting module 82.

[0044] Specifically, when it is necessary to press the three-way catalytic converter mounting module 82, the first pressing cylinder 31 drives the first pressing plate 33 to rotate vertically via the first pressing arm 32, so that the first pressing plate 33 presses against the top surface of the three-way catalytic converter mounting module 82, thereby fixing it between the first pressing plate 33 and the first positioning plate 22. The first pressing cylinder 31 can also drive the first pressing plate 33 to rotate in the opposite direction via the first pressing arm 32, so that the first pressing plate 33 moves away from the three-way catalytic converter mounting module 82. It should be noted that the first pressing cylinder 31 can be any cylinder capable of achieving the above technical effects, and this utility model is not limited thereto. For example, it can be the CKZT50-105 cylinder from SMC (China) Co., Ltd.

[0045] like Figure 6 As shown, in some embodiments of this utility model, the second support mechanism 4 includes a three-jaw cylinder 41 and a gripper operating mechanism 42. The cylinder body of the three-jaw cylinder 41 is mounted on the top surface of the base 1. A pad 411 is mounted on the top of the cylinder body of the three-jaw cylinder 41. A stop plate 412 is provided on the top of the pad 411. The stop plate 412 can press against the inlet side of the three-way catalyst mounting module 82. A support block 413 is provided on the outer side of the gripper of the three-jaw cylinder 41. Arc-shaped first protective plates 414 are mounted on both sides of the top of the support block 413. The gripper of the three-jaw cylinder 41 can drive the first protective plate 414 to move radially. When the first protective plate 414 moves radially inward, all the first protective plates 414 can be spliced ​​to form a first annular baffle distributed around the air intake cylinder 831 of the inlet end cone module 83. The gripper operating mechanism 42 includes a first operating rod 421, a first connecting rod 422, and a second connecting rod 423. The end of the first connecting rod 422 is hinged to the support block 413, and the end of the first operating rod 421 is hinged to the head of the first connecting rod 422. The end of the first operating rod 421 is fixedly connected to the head of the second connecting rod 423, and the end of the second connecting rod 423 is hinged to the base 1. The included angle between the first operating rod 421 and the second connecting rod 423 is an obtuse angle.

[0046] Specifically, when the three-way catalyst mounting module 82 is installed in the first positioning plate 22, the stop plate 412 can abut against the side of the three-way catalyst mounting module 82 to facilitate accurate positioning of the three-way catalyst mounting module 82. During positioning of the inlet end taper module 83, the air inlet cylinder 831 of the inlet end taper module 83 is placed on the top surface of the cushion block 411, all the first protective plates 414 surround the air inlet cylinder 831, and the inlet end taper module 83 is butted against the inlet side of the three-way catalyst mounting module 82; then the first operating rod 421 is pushed, so that the support block 413 pushes the clamping jaws to move radially inward, and then the first protective plates 414 form the first annular stop plate surrounding the air inlet cylinder 831; then the three-jaw air cylinder 41 drives the clamping jaws to move further radially inward, and the first annular stop plate forms a good seal around the air inlet cylinder 831 to prevent welding slag from entering the air inlet cylinder 831. After welding is completed, the first protective plates 414 can be moved away from the air inlet cylinder 831 by pulling the first operating rod 421 or by driving the clamping jaws of the three-jaw air cylinder 41. It should be noted that the three-jaw air cylinder 41 can be any air cylinder that can achieve the above technical effects, and the utility model is not limited, for example, it can be an MHSL3-80D type air cylinder of SMC (China) Co., Ltd.

[0047] As Figure 7 shown, in some embodiments of the utility model, the second pressing mechanism 5 includes a second support column 51, a second pressing air cylinder 52, a second pressing arm 53 and a second pressing plate 54; the second support column 51 is installed on the top surface of the base 1, the cylinder body part of the second pressing air cylinder 52 is installed on the second support column 51, the second pressing plate 54 is connected to the swing arm of the second pressing air cylinder 52 through the second pressing arm 53, the second pressing arm 53 and the second pressing plate 54 are located above the second support mechanism 4, and the second pressing air cylinder 52 can drive the second pressing plate 54 to rotate between the second non-pressing position away from the top surface of the inlet end taper module 83 and the second pressing position contacting the top surface of the inlet end taper module 83.

[0048] Specifically, the second pressing air cylinder 52 drives the second pressing plate 54 to rotate vertically through the second pressing arm 53, so that the second pressing plate 54 presses on the top surface of the inlet end taper module 83, and then the inlet end taper module 83 is fixed between the second pressing plate 54 and the cushion block 411. The second pressing air cylinder 52 can also drive the second pressing plate 54 to rotate reversely through the second pressing arm 53, so that the second pressing plate 54 moves away from the inlet end taper module 83. It should be noted that the second pressing air cylinder 52 can be any air cylinder that can achieve the above technical effects, and the utility model is not limited, for example, it can be a CKZT50-105 type air cylinder of SMC (China) Co., Ltd.

[0049] As Figure 7As shown in some embodiments of the utility model, preferably, the top of base 1 is provided with support table 11, and second support column 51 is installed on the top of support table 11.

[0050] Specifically, support table 11 can make second pressing mechanism 5 installed at a preset height, facilitating the implementation of pressing operation.

[0051] As Figure 7 As shown in some embodiments of the utility model, further preferably, the top surface of support table 11 is provided with limiting rack 111 for limiting inlet end taper module 83 from moving away from three-way catalyst installation module 82.

[0052] Specifically, when inlet end taper module 83 is placed on cushion block 411, limiting rack 111 can limit it, so that inlet end taper module 83 and three-way catalyst installation module 82 remain aligned.

[0053] As Figure 7 As shown in some embodiments of the utility model, further preferably, the welding positioning tool further comprises fourth pressing mechanism 12 capable of pressing first lifting lug 832 on the side of inlet end taper module 83, and fourth pressing mechanism 12 is installed on the top of support table 11 through fourth support column 112.

[0054] Specifically, fourth pressing mechanism 12 can press first lifting lug 832 on the side of inlet end taper module 83, so as to facilitate the welding of first lifting lug 832.

[0055] As Figure 7 As shown in some embodiments of the utility model, more preferably, fourth pressing mechanism 12 comprises fourth pressing cylinder 121, fourth pressing plate 122, first rotary clamping cylinder 123 and first pressing block 124; the cylinder body part of fourth pressing cylinder 121 is installed on the top of fourth support column 112, fourth pressing plate 122 is connected to the piston rod of fourth pressing cylinder 121, the lower part of fourth pressing plate 122 has first lifting lug pressing surface for pressing first lifting lug 832, the cylinder body part of first rotary clamping cylinder 123 is installed on the top of fourth pressing plate 122, the leading end of first pressing block 124 is connected with the piston rod of first rotary clamping cylinder 123, and the trailing end of first pressing block 124 faces first lifting lug pressing surface; first rotary clamping cylinder 123 can drive first pressing block 124 to rotate circumferentially around the axis of its piston rod, and first rotary clamping cylinder 123 can drive first pressing block 124 to move towards or away from first lifting lug pressing surface, so as to clamp or release first lifting lug 832.

[0056] Specifically, when clamping the first lifting lug 832, the first lifting lug 832 is first placed against the first lifting lug clamping surface; then, the first rotary clamping cylinder 123 drives the first pressure block 124 to rotate, so that the end of the first pressure block 124 faces the first lifting lug 832. The first rotary clamping cylinder 123 then drives the first pressure block 124 to move towards the first lifting lug 832, so that the first lifting lug 832 is clamped between the fourth clamping plate 122 and the first pressure block 124; then, the fourth clamping cylinder 121 drives the fourth clamping plate 122 to move towards the inlet end cone module 83, so that the first lifting lug 832 is clamped against the side of the inlet end cone module 83. After the first lifting lug 832 is welded, the first rotary clamping cylinder 123 reverses the direction, driving the first pressure block 124 away from the first lifting lug 832; then, the fourth clamping cylinder 121 drives the fourth clamping plate 122 away from the first lifting lug 832. It should be noted that the first rotary clamping cylinder 123 and the fourth pressing cylinder 121 can be any type of cylinder capable of achieving the above-mentioned technical effects. This utility model does not impose any restrictions. For example, the first rotary clamping cylinder 123 can be an MKB16-10RZ type cylinder from SMC (China) Co., Ltd., and the fourth pressing cylinder 121 can be an MPGM20-40Z type cylinder from SMC (China) Co., Ltd.

[0057] like Figure 7 As shown, in some embodiments of this utility model, the welding positioning fixture also includes a shielding mechanism 13 for shielding the end of the vent pipe 813 of the three-way catalyst mounting module 82. The shielding mechanism 13 is mounted on the support platform 11 via a fifth support column 113.

[0058] Specifically, the shielding mechanism 13 can shield the vent pipe 813 of the three-way catalyst mounting module 82 to prevent welding slag from entering the vent pipe 813.

[0059] like Figure 8 As shown, in some embodiments of this utility model, preferably, the shielding mechanism 13 includes a third driving cylinder 131, a guide plate 132, a shielding arm 133, and a shielding block 134; the side of the cylinder body of the third driving cylinder 131 is mounted on the top surface of the support platform 11 via a fifth support column 113, and the front of the cylinder body of the third driving cylinder 131 is equipped with a guide plate 132, which has two guide holes; the lower part of the shielding arm 133 is connected to the piston rod of the third driving cylinder 131, and the third driving cylinder 131 can drive the shielding arm 133 to move linearly toward or away from the three-way catalytic converter mounting module 82; the lower part of the shielding arm 133 is equipped with two guide rods, which are respectively movably inserted into the two guide holes; the upper part of the shielding arm 133 is equipped with a shielding block 134 on the side facing the three-way catalytic converter mounting module 82, and the shielding block 134 can shield the end of the vent pipe 813 of the three-way catalytic converter mounting module 82.

[0060] Specifically, when it is needed to shield the breather pipe 813, the third driving cylinder 131 drives the shielding block 134 to move towards the breather pipe 813 through the shielding arm 133, so that the shielding block 134 seals the end of the breather pipe 813. After the welding is completed, the third driving cylinder 131 drives the shielding block 134 to move reversely through the shielding arm 133, so that the shielding block 134 moves away from the breather pipe 813.

[0061] As shown in Figure 9 and Figure 8 In some embodiments of the utility model, the third supporting mechanism 6 includes horizontal moving mechanism 61, support plate 62, second connecting plate 63 and second positioning plate 64, horizontal moving mechanism 61 is installed on the top surface of base 1, support plate 62 and third pressing mechanism 7 are installed on horizontal moving mechanism 61, and horizontal moving mechanism 61 can drive support plate 62 and third pressing mechanism 7 to move linearly towards or away from first supporting mechanism 2, second positioning plate 64 is connected to the side of support plate 62 towards first supporting mechanism 2 through second connecting plate 63, and second positioning plate 64 is set as arc shape with opening upwards to adapt to the bottom of outlet end taper module 81.

[0062] Specifically, after the three-way catalyst installation module 82 is fixed, the outlet end taper module 81 is placed on the second positioning plate 64, and then the third pressing mechanism 7 presses the outlet end taper module 81 on the second positioning plate 64, then horizontal moving mechanism 61 drives second positioning plate 64 to move towards first supporting mechanism 2 to the preset position, and makes outlet end taper module 81 butt joint with the outlet side of three-way catalyst installation module 82. After the welding is completed, the third pressing mechanism 7 is released, and horizontal moving mechanism 61 can drive second positioning plate 64 to move reversely.

[0063] As shown in Figure 9 and Figures 8 to 9 In some embodiments of the utility model, preferably, horizontal moving mechanism 61 includes mounting plate 611 and moving plate 612, mounting plate 611 is installed on the top surface of base 1 through two supporting legs, and the bottom surface of mounting plate 611 is provided with first driving cylinder 613, the top surface of mounting plate 611 is provided with two parallel slide rails 614, the slide rails 614 are provided with slide block 615 capable of sliding along the extension direction thereof, and moving plate 612 is installed on the top surface of slide block 615, support plate 62 and third pressing mechanism 7 are installed on the top surface of moving plate 612 at intervals, moving plate 612 is connected with the piston rod of first driving cylinder 613, and first driving cylinder 613 can drive moving plate 612 to move horizontally towards or away from first supporting mechanism 2, so as to clamp or release first lifting lug 832.

[0064] Specifically, the first driving cylinder 613 can drive the moving plate 612 to move towards the first supporting mechanism 2, so as to support the outlet end taper module 81 by the second positioning plate 64. The first driving cylinder 613 can drive the moving plate 612 to move away from the first supporting mechanism 2, so as to fix the next three-way catalyst installation module 82.

[0065] As shown in Figure 10 some embodiments of the utility model, more preferably, the horizontal moving mechanism 61 further includes a second operating rod 616, a third connecting rod 617 and a fourth connecting rod 618; the first end of the third connecting rod 617 is hinged to the side of the mounting plate 611 away from the first supporting mechanism 2, the tail end of the third connecting rod 617 is fixedly connected with the bottom end of the second operating rod 616, and an obtuse angle is formed between the third connecting rod 617 and the second operating rod 616; the first end of the fourth connecting rod 618 is hinged to the bottom end of the second operating rod 616, and the tail end of the fourth connecting rod 618 is hinged to the side of the moving plate 612 towards the first supporting mechanism 2.

[0066] Specifically, when the outlet end taper module 81 needs to be fixed or positioned, the second operating rod 616 is pushed to make the moving plate 612 move towards the first supporting mechanism 2; then the first driving cylinder 613 drives the moving plate 612 to move towards the first supporting mechanism 2, so as to tightly butt joint the outlet end taper module 81 and the three-way catalyst installation module 82. After welding is completed, the second operating rod 616 can be pulled, or the moving plate 612 is reversely moved by the first driving cylinder 613, so that the third supporting mechanism 6 and the third pressing mechanism 7 move away from the first supporting mechanism 2. It should be noted that the first driving cylinder 613 can be any cylinder capable of achieving the above technical effects, and the utility model is not limited, for example, it can be a CDQZA50-125DZ type cylinder of SMC (China) Co., Ltd.

[0067] As shown in Figure 10 some embodiments of the utility model, more preferably, the third pressing mechanism 7 includes a third supporting column 71, a third pressing cylinder 72, a third pressing arm 73 and a third pressing plate 74; the third supporting column 71 is installed on the top surface of the moving plate 612, the cylinder body part of the third pressing cylinder 72 is installed on the third supporting column 71, the third pressing plate 74 is connected to the swing arm of the third pressing cylinder 72 through the third pressing arm 73, and the third pressing cylinder 72 can drive the third pressing plate 74 to rotate between the third non-pressing position away from the top surface of the outlet end taper module 81 and the third pressing position contacting the top surface of the outlet end taper module 81.

[0068] Specifically, the third pressing cylinder 72 can drive the third pressing plate 74 to rotate vertically through the third pressing arm 73, so that the third pressing plate 74 is pressed on the top surface of the outlet end taper module 81, and then the outlet end taper module 81 is pressed between the third pressing plate 74 and the second positioning plate 64. The third pressing cylinder 72 can drive the third pressing plate 74 to rotate reversely through the third pressing arm 73, so that the third pressing plate 74 is away from the outlet end taper module 81. It should be noted that the third pressing cylinder 72 can be any kind of cylinder that can achieve the above technical effects, and the utility model is not limited, for example, it can be a CKZT50-105 type cylinder of SMC (China) Co., Ltd.

[0069] As shown in the drawings, Figure 10 In some embodiments of the utility model, the welding positioning tool further includes a clamping mechanism 65 for clamping the gas outlet cylinder 811 of the outlet end taper module 81, and the clamping mechanism 65 is installed on the support plate 62.

[0070] Specifically, the clamping mechanism 65 can clamp the gas outlet cylinder 811, so as to facilitate the close butt joint of the outlet end taper module 81 and the three-way catalyst installation module 82.

[0071] As shown in the drawings, Figure 8 In some embodiments of the utility model, preferably, the clamping mechanism 65 includes a first mounting disc 651, a second mounting disc 652, a second driving cylinder 653 and three transmission arms 654; the first mounting disc 651 and the second mounting disc 652 are respectively installed on the side of the support plate 62 away from the first supporting mechanism 2 and the side of the support plate 62 facing the first supporting mechanism 2, and the first mounting disc 651 penetrates the support plate 62; the first mounting disc 651 is provided with an avoiding hole allowing the piston rod of the second driving cylinder 653 to move through; the front part of the cylinder body part of the second driving cylinder 653 is installed on the first mounting disc 651; the three transmission arms 654 are distributed in a circumferential direction around the axis of the piston rod of the second driving cylinder 653, one end of the transmission arm 654 is fixedly connected with the piston rod of the second driving cylinder 653, the transmission arm 654 moves through the support plate 62, and the other end of the transmission arm 654 is located at the side of the second mounting disc 652 facing the second supporting mechanism 4, and arc-shaped second protective plates 655 are installed on both sides of the other end of the transmission arm 654; the piston rod of the second driving cylinder 653 can drive the second protective plates 655 to move radially through the transmission arm 654, and when the second protective plates 655 move radially inward, all the second protective plates 655 can be spliced to form a second annular baffle distributed around the gas outlet cylinder 811 of the outlet end taper module 81.

[0072] Specifically, when the outlet end taper module 81 needs to be fixed, the outlet end taper module 81 is placed on the second positioning plate 64, the air outlet cylinder 811 of the outlet end taper module 81 is pressed on the second mounting disc 652, and all the second protective plates 655 surround the air outlet cylinder 811, then the second driving air cylinder 653 drives the second protective plates 655 to move radially inward through the transmission arm 654 to form the second annular baffle distributed around the air outlet cylinder 811, and the second annular baffle can seal the periphery of the air outlet cylinder 811 to prevent the welding slag from entering the air outlet cylinder 811; then the third pressing mechanism 7 presses the outlet end taper module 81 on the third supporting mechanism 6; then the horizontal moving mechanism 61 drives the clamping mechanism 65 to move to the first supporting mechanism 2, so that the outlet end taper module 81 is tightly butted with the three-way catalyst installation module 82. After welding is completed, the second driving air cylinder 653 drives the second protective plates 655 to move radially outward through the transmission arm 654, so that the second protective plates 655 are away from the air outlet cylinder 811. It should be noted that the second driving air cylinder 653 can be any air cylinder that can achieve the above technical effects, and the utility model is not limited, for example, it can be a CDQZWB63-30DZ type air cylinder of SMC (China) Co., Ltd.

[0073] As shown in Figure 8 some embodiments of the utility model, more preferably, the front end of the piston rod of the second driving air cylinder 653 is fixedly connected with the transmission arm 654, and the rear end of the piston rod of the second driving air cylinder 653 extends from the rear end of the cylinder body part of the second driving air cylinder 653; the top of the cylinder body part of the second driving air cylinder 653 is fixedly installed with the hinged plate 656; the clamping mechanism 65 further includes the third operating rod 657, the bottom end of the third operating rod 657 is hinged with the rear end of the piston rod of the second driving air cylinder 653, and the middle part of the third operating rod 657 is hinged with the hinged plate 656.

[0074] Specifically, the third operating rod 657 is pushed, so that the transmission arm 654 drives the second protective plates 655 to move radially inward, at this time, the air outlet cylinder 811 can be pre-pressed; then the second driving air cylinder 653 continues to drive the second protective plates 655 to move radially inward, so that the second protective plates 655 are tightly attached to the air outlet cylinder 811. After welding is completed, the third operating rod 657 can be pulled, or the second driving air cylinder 653 is driven in a mode, so that the second protective plates 655 move radially outward.

[0075] As shown in Figure 8 some embodiments of the utility model, the welding positioning tool further includes the fifth pressing mechanism 66 capable of pressing the second lifting lug 812 on the side of the outlet end taper module 81, and the fifth pressing mechanism 66 is installed on the supporting plate 62.

[0076] Specifically, the fifth pressing mechanism 66 can press the second lifting lug 812 against the side of the inlet end taper module 83, so as to facilitate welding of the second lifting lug 812.

[0077] As shown in the drawings, Figure 8 In some embodiments of the utility model, preferably, the fifth pressing mechanism 66 comprises a fifth pressing cylinder 661, a connecting arm 662 and a fifth pressing plate 663, a second rotary clamping cylinder 664 and a second pressing block 665; the cylinder body part of the fifth pressing cylinder 661 is installed on the top of the support plate 62, the fifth pressing plate 663 is connected to the piston rod of the fifth pressing cylinder 661 through the connecting arm 662, the lower part of the fifth pressing plate 663 is provided with a second lifting lug pressing surface for pressing the second lifting lug 812, the cylinder body part of the second rotary clamping cylinder 664 is installed on the upper part of the fifth pressing plate 663, the piston rod of the second rotary clamping cylinder 664 passes through the upper part of the fifth pressing plate 663, the leading end of the second pressing block 665 is connected with the piston rod of the second rotary clamping cylinder 664, and the trailing end of the second pressing block 665 faces the second lifting lug pressing surface; the second rotary clamping cylinder 664 can drive the second pressing block 665 to rotate circumferentially around the axis of the piston rod thereof; the second rotary clamping cylinder 664 can drive the second pressing block 665 to move towards or away from the second lifting lug pressing surface, so as to clamp or release the second lifting lug 812.

[0078] Specifically, when the second lifting lug 812 is pressed, first, the second lifting lug 812 is attached to the second lifting lug pressing surface; then the second rotary clamping cylinder 664 drives the second pressing block 665 to rotate, so that the trailing end of the second pressing block 665 faces the second lifting lug 812, and then the second rotary clamping cylinder 664 drives the second pressing block 665 to move towards the second lifting lug 812, so that the second lifting lug 812 is clamped between the fifth pressing plate 663 and the second pressing block 665; then the fifth pressing cylinder 661 drives the fifth pressing plate 663 to move towards the outlet end taper module 81, so as to press the second lifting lug 812 against the side of the outlet end taper module 81. After the second lifting lug 812 is welded, the second rotary clamping cylinder 664 reversely drives the second pressing block 665 to move away from the second lifting lug 812; and then the fifth pressing cylinder 661 drives the fifth pressing plate 663 to move away from the second lifting lug 812. It should be noted that the fifth pressing cylinder 661 and the second rotary clamping cylinder 664 can be any type of cylinder that can achieve the above technical effects, and the utility model does not make any limitation, for example, the fifth pressing cylinder 661 can be an MPGM20-40Z type cylinder of SMC (China) Co., Ltd., and the second rotary clamping cylinder 664 can be an MKB16-10RZ type cylinder of SMC (China) Co., Ltd.

[0079] As shown in the drawings, Figure 4As shown, in some embodiments of this utility model, and more preferably, the fifth pressing mechanism 66 further includes a first hinge post 666, a second hinge post 667, and a fourth operating rod 668; the front part of the piston rod of the fifth pressing cylinder 661 is connected to the connecting arm 662, the rear part of the piston rod of the fifth pressing cylinder 661 extends from the rear part of the fifth pressing cylinder 661, the first hinge post 666 is fixedly connected to the rear part of the piston rod of the fifth pressing cylinder 661, the second hinge post 667 is fixedly connected to the rear part of the cylinder body of the fifth pressing cylinder 661, the second hinge post 667 is located below the first hinge post 666, the bottom end of the fourth operating rod 668 is hinged to the second hinge post 667, and the middle part of the fourth operating rod 668 is hinged to the first hinge post 666.

[0080] Specifically, pushing the fourth operating lever 668 moves the fifth clamping plate 663 toward the outlet end cone module 81, at which point the second lifting lug 812 can be pre-clamped. After welding is completed, the fourth operating lever 668 can be pulled, or the fifth clamping cylinder 661 can be used to drive the fifth clamping plate 663 away from the outlet end cone module 81.

[0081] like Figure 4 As shown, in some embodiments of the present invention, the welding positioning fixture further includes a sixth pressing mechanism 23 for pressing the positioning block 821 against the side of the three-way catalyst mounting module 82. The sixth pressing mechanism 23 is installed on the side of the first positioning plate 22 of the first support mechanism 2, and the first positioning plate 22 is located between the sixth pressing mechanism 23 and the first pressing mechanism 3.

[0082] Specifically, the sixth clamping mechanism 23 can clamp the positioning block 821 on the side of the three-way catalyst mounting module 82 to facilitate welding of the positioning block 821.

[0083] like Figure 5 and ​ As shown, in some embodiments of this utility model, preferably, the sixth pressing mechanism 23 includes a third rotary clamping cylinder 231, a rotating arm 232, and a third pressing block 233; the cylinder body of the third rotary clamping cylinder 231 is mounted on the side of the first positioning plate 22, and the third pressing block 233 is connected to the piston rod of the third rotary clamping cylinder 231 through the rotating arm 232. The third rotary clamping cylinder 231 can drive the third pressing block 233 to rotate around its axis, so that the third pressing block 233 can move between a third pressing position that can press the positioning block 821 on the side of the three-way catalyst mounting module 82 and a third non-pressing position away from the side of the three-way catalyst mounting module 82; the side of the third pressing block 233 facing the three-way catalyst mounting module 82 is provided with a positioning groove 234 for fixing the positioning block 821.

[0084] Specifically, the positioning block 821 is first installed in the positioning groove 234, and then the third rotary clamping cylinder 231 drives the third pressing block 233 to rotate towards the three-way catalyst mounting module 82 through the rotating arm 232; when the third pressing block 233 is rotated to a preset position, the third rotary clamping cylinder 231 drives the third pressing block 233 to move linearly, so that the positioning block 821 is pressed against the side of the three-way catalyst mounting module 82. After the welding is completed, the third rotary clamping cylinder 231 drives the third pressing block 233 to move linearly in the opposite direction, so that the third pressing block 233 moves away from the three-way catalyst mounting module 82; then the third rotary clamping cylinder 231 drives the third pressing block 233 to rotate in the opposite direction, so that the third pressing block 233 returns to the initial position. It should be noted that the third rotary clamping cylinder 231 can be any cylinder that can achieve the above technical effects, and the present application does not limit it, for example, it can be an MKB32-10RZ cylinder of SMC (China) Co., Ltd.

[0085] In some embodiments of the present application, all the above-mentioned cylinders can be controlled manually to move.

[0086] In some embodiments of the present application, all the above-mentioned cylinders can be controlled manually to move.

[0087] The present application also provides a natural gas emission processor welding manufacturing system, which comprises the welding positioning tool of the above-mentioned embodiments.

[0088] Specifically, since the natural gas emission processor welding manufacturing system adopts the welding positioning tool of the above-mentioned embodiments, the natural gas emission processor welding manufacturing system can also achieve the above-mentioned technical effects.

[0089] In some embodiments, the natural gas emission processor welding manufacturing system further comprises a welding robot, which is distributed between the welding positioning tools and can perform welding work.

[0090] The principle and implementation mode of the present application are described by using specific examples herein, and the above examples are only used for helping to understand the method and core idea of the present application. The above is only the preferred implementation mode of the present application, and it should be pointed out that, due to the limited nature of the expression, there are objectively infinite specific structures, and for ordinary skilled persons in the technical field, without departing from the principle of the present application, a number of improvements, refinements or changes can be made, and the above technical features can be combined in an appropriate manner; the improvements, refinements, changes or combinations, or the direct application of the concept and technical solution of the present application to other occasions without improvement, should be regarded as the protection scope of the present application.

Claims

1. A welding fixture, comprising: The device comprises a base (1), a first supporting mechanism (2), a first pressing mechanism (3), a second supporting mechanism (4), a second pressing mechanism (5), a third supporting mechanism (6) and a third pressing mechanism (7). The first supporting mechanism (2) is installed on the base (1) and located between the second supporting mechanism (4) and the third supporting mechanism (6), and is arranged to vertically support the three-way catalyst installation module (82); the first pressing mechanism (3) is installed on the base (1) and arranged to press the three-way catalyst installation module (82) on the first supporting mechanism (2). The second supporting mechanism (4) is installed on the base (1) and arranged to vertically support the inlet end cone module (83); the second pressing mechanism (5) is installed on the base (1) and arranged to press the inlet end cone module (83) on the second supporting mechanism (4) and make it butt with the inlet side of the three-way catalyst installation module (82). The third supporting mechanism (6) is installed on the base (1) and arranged to vertically support the outlet end cone module (81); the third pressing mechanism (7) is installed on the base (1) and arranged to press the outlet end cone module (81) on the third supporting mechanism (6) and make it butt with the outlet side of the three-way catalyst installation module (82).

2. The welding positioning fixture of claim 1, wherein, The first supporting mechanism (2) comprises a first supporting column (21) and a first positioning plate (22); the first supporting column (21) is installed on the top surface of the base (1); the first positioning plate (22) is installed on the top of the first supporting column (21) and arranged in an arc shape with the opening facing upward to adapt to the bottom of the three-way catalyst installation module (82).

3. The welding positioning fixture of claim 2, wherein, The first pressing mechanism (3) comprises a first pressing cylinder (31), a first pressing arm (32) and a first pressing plate (33); the cylinder body of the first pressing cylinder (31) is installed on the side of the first positioning plate (22); the first pressing plate (33) is connected to the swing arm of the first pressing cylinder (31) through the first pressing arm (32); the first pressing arm (32) and the first pressing plate (33) are located above the first positioning plate (22); the first pressing cylinder (31) can drive the first pressing plate (33) to rotate between the first non-pressing position away from the top surface of the three-way catalyst installation module and the first pressing position contacting the top surface of the three-way catalyst installation module.

4. The welding positioning fixture of claim 1, wherein, The second supporting mechanism (4) comprises a three-jaw cylinder (41) and a jaw operating mechanism (42). The cylinder body part of the three-jaw cylinder (41) is mounted on the top surface of the base (1), the top of the cylinder body part of the three-jaw cylinder (41) is provided with a cushion block (411), the top of the cushion block (411) is provided with a stop plate (412), the stop plate (412) can abut against the inlet side of the three-way catalyst mounting module (82); the outer side of the clamping jaw of the three-jaw cylinder (41) is provided with a support block (413), the top of the support block (413) is provided with two arc-shaped first protective plates (414) on both sides; the clamping jaw of the three-jaw cylinder (41) can drive the first protective plate (414) to move radially, and when the first protective plate (414) moves radially inward, all the first protective plates (414) can be spliced to form a first annular baffle surrounding the air inlet cylinder (831) of the inlet end taper module (83). The clamping jaw operating mechanism (42) comprises a first operating rod (421), a first connecting rod (422) and a second connecting rod (423), the distal end of the first connecting rod (422) is hinged to the support block (413), and the distal end of the first operating rod (421) is hinged to the proximal end of the first connecting rod (422); the distal end of the first operating rod (421) is fixedly connected to the proximal end of the second connecting rod (423), the distal end of the second connecting rod (423) is hinged to the base (1), and the included angle between the first operating rod (421) and the second connecting rod (423) is obtuse.

5. The welding positioning fixture of claim 4, wherein, The second pressing mechanism (5) comprises a second support column (51), a second pressing cylinder (52), a second pressing arm (53) and a second pressing plate (54); the second support column (51) is mounted on the top surface of the base (1), the cylinder body part of the second pressing cylinder (52) is mounted on the second support column (51), the second pressing plate (54) is connected to the swing arm of the second pressing cylinder (52) through the second pressing arm (53), the second pressing arm (53) and the second pressing plate (54) are located above the second support mechanism (4), and the second pressing cylinder (52) can drive the second pressing plate (54) to rotate between a second non-pressing position away from the top surface of the inlet end taper module and a second pressing position contacting the top surface of the inlet end taper module.

6. The welding positioning fixture of claim 5, wherein, The top of the base (1) is provided with a support table (11), and the second support column (51) is mounted on the top of the support table (11).

7. The welding positioning fixture of claim 6, wherein, The top surface of the support table (11) is provided with a limiting rack (111) limiting the inlet end taper module (83) from moving away from the three-way catalyst mounting module (82).

8. The welding positioning fixture of claim 7, wherein, The welding positioning tool further comprises a fourth pressing mechanism (12) capable of pressing the first lifting lug (832) against the side of the inlet end taper module (83), and the fourth pressing mechanism (12) is mounted on the top of the support table (11) through a fourth support column (112).

9. The welding positioning fixture of claim 8, wherein, The fourth pressing mechanism (12) comprises a fourth pressing cylinder (121), a fourth pressing plate (122), a first rotary clamping cylinder (123) and a first pressing block (124); the cylinder body part of the fourth pressing cylinder (121) is mounted on the top of the fourth supporting column (112), the fourth pressing plate (122) is connected to the piston rod of the fourth pressing cylinder (121), the lower part of the fourth pressing plate (122) has a first lug pressing surface for pressing the first lug (832), the cylinder body part of the first rotary clamping cylinder (123) is mounted on the top of the fourth pressing plate (122), the first end of the first pressing block (124) is connected with the piston rod of the first rotary clamping cylinder (123), and the tail end of the first pressing block (124) faces the first lug pressing surface; the first rotary clamping cylinder (123) can drive the first pressing block (124) to rotate circumferentially around the axis of the piston rod, and the first rotary clamping cylinder (123) can drive the first pressing block (124) to move towards or away from the first lug pressing surface, so as to clamp or release the first lug (832).

10. The welding positioning fixture of claim 9, wherein, The welding positioning tool further comprises a shielding mechanism (13) for shielding the end of the air pipe (813) of the three-way catalyst mounting module (82), and the shielding mechanism (13) is mounted on the supporting table (11) through a fifth supporting column (113).

11. The welding positioning fixture of claim 10, wherein, The shielding mechanism (13) comprises a third driving cylinder (131), a guide plate (132), a shielding arm (133) and a shielding block (134); the side part of the cylinder body part of the third driving cylinder (131) is mounted on the top surface of the supporting table (11) through the fifth supporting column (113), the front part of the cylinder body part of the third driving cylinder (131) is provided with the guide plate (132), and the guide plate (132) is provided with two guide holes; the lower part of the shielding arm (133) is connected to the piston rod of the third driving cylinder (131), the third driving cylinder (131) can drive the shielding arm (133) to move linearly towards or away from the three-way catalyst mounting module (82); the lower part of the shielding arm (133) is provided with two guide rods, the two guide rods are respectively movably inserted into the two guide holes, and the side of the upper part of the shielding arm (133) facing the three-way catalyst mounting module (82) is provided with the shielding block (134), and the shielding block (134) can shield the end of the air pipe (813) of the three-way catalyst mounting module (82).

12. The welding positioning fixture of claim 1, wherein, The third supporting mechanism (6) comprises a horizontal moving mechanism (61), a supporting plate (62), a second connecting plate (63) and a second positioning plate (64); the horizontal moving mechanism (61) is installed on the top surface of the base (1), the supporting plate (62) and the third pressing mechanism (7) are installed on the horizontal moving mechanism (61), and the horizontal moving mechanism (61) can drive the supporting plate (62) and the third pressing mechanism (7) to move linearly towards or away from the first supporting mechanism (2); the second positioning plate (64) is connected to the side of the supporting plate (62) facing the first supporting mechanism (2) through the second connecting plate (63), and the second positioning plate (64) is arranged in an arc shape with an opening facing upwards to adapt to the bottom of the outlet end taper module (81).

13. The welding positioning fixture of claim 12, wherein, The horizontal moving mechanism (61) comprises a mounting plate (611) and a moving plate (612); the mounting plate (611) is installed on the top surface of the base (1) through two supporting legs, and a first driving cylinder (613) is installed on the bottom surface of the mounting plate (611); two parallel sliding rails (614) are arranged on the top surface of the mounting plate (611), and a sliding block (615) capable of sliding along the extension direction of the sliding rail (614) is arranged on the sliding rail (614), and the moving plate (612) is installed on the top surface of the sliding block (615); the supporting plate (62) and the third pressing mechanism (7) are installed on the top surface of the moving plate (612) at intervals; the moving plate (612) is connected with the piston rod of the first driving cylinder (613), and the first driving cylinder (613) can drive the moving plate (612) to move horizontally towards or away from the first supporting mechanism (2).

14. The welding positioning fixture of claim 13, wherein, The horizontal moving mechanism (61) further comprises a second operating rod (616), a third connecting rod (617) and a fourth connecting rod (618); the first end of the third connecting rod (617) is hingedly connected with the side of the mounting plate (611) away from the first supporting mechanism (2), the end of the third connecting rod (617) is fixedly connected with the bottom end of the second operating rod (616), and the third connecting rod (617) and the second operating rod (616) form an obtuse angle; the first end of the fourth connecting rod (618) is hingedly connected with the bottom end of the second operating rod (616), and the end of the fourth connecting rod (618) is hingedly connected with the side of the moving plate (612) facing the first supporting mechanism (2).

15. The welding positioning fixture of claim 14, wherein, The third pressing mechanism (7) comprises a third supporting column (71), a third pressing cylinder (72), a third pressing arm (73) and a third pressing plate (74); the third supporting column (71) is installed on the top surface of the moving plate (612), the cylinder body part of the third pressing cylinder (72) is installed on the third supporting column (71), the third pressing plate (74) is connected to the swing arm of the third pressing cylinder (72) through the third pressing arm (73), and the third pressing cylinder (72) can drive the third pressing plate (74) to rotate between a third non-pressing position away from the top surface of the outlet end cone module and a third pressing position contacting the top surface of the outlet end cone module.

16. The welding positioning fixture of claim 12, wherein, The welding positioning tool further comprises a clamping mechanism (65) for clamping the gas outlet cylinder (811) of the outlet end cone module (81), and the clamping mechanism (65) is installed on the supporting plate (62).

17. The welding positioning fixture of claim 16, wherein, The clamping mechanism (65) comprises a first mounting disc (651), a second mounting disc (652), a second driving cylinder (653) and three transmission arms (654); the first mounting disc (651) and the second mounting disc (652) are respectively installed on the side of the supporting plate (62) away from the first supporting mechanism (2) and the side of the supporting plate (62) facing the first supporting mechanism (2), and the first mounting disc (651) penetrates through the supporting plate (62); the first mounting disc (651) is provided with a avoiding hole allowing the piston rod of the second driving cylinder (653) to move through; the front part of the cylinder body part of the second driving cylinder (653) is installed on the first mounting disc (651); three transmission arms (654) are circumferentially spaced around the axis of the piston rod of the second driving cylinder (653), one end of the transmission arm (654) is fixedly connected with the piston rod of the second driving cylinder (653), the transmission arm (654) moves through the supporting plate (62), and the other end of the transmission arm (654) is located at the side of the second mounting disc (652) facing the second supporting mechanism (4), and arc-shaped second protective plates (655) are installed on both sides of the other end of the transmission arm (654); the piston rod of the second driving cylinder (653) can drive the second protective plates (655) to move radially through the transmission arm (654), and when the second protective plates (655) move radially inward, all the second protective plates (655) can be spliced to form a second annular baffle distributed around the gas outlet cylinder (811) of the outlet end cone module (81).

18. The welding positioning fixture of claim 17, wherein, The front end of the piston rod of the second driving cylinder (653) is fixedly connected with the transmission arm (654), and the rear end of the piston rod of the second driving cylinder (653) extends from the rear end of the cylinder body part of the second driving cylinder (653); the top of the cylinder body part of the second driving cylinder (653) is fixedly installed with a hinged plate (656); the clamping mechanism (65) further comprises a third operating rod (657), the bottom end of the third operating rod (657) is hinged with the rear end of the piston rod of the second driving cylinder (653), and the middle part of the third operating rod (657) is hinged with the hinged plate (656).

19. The welding positioning fixture of claim 12, wherein, The welding positioning tool further comprises a fifth pressing mechanism (66) capable of pressing the second lifting lug (812) against the side of the outlet end cone module (81), and the fifth pressing mechanism (66) is installed on the support plate (62).

20. The welding positioning fixture of claim 19, wherein, The fifth pressing mechanism (66) comprises a fifth pressing cylinder (661), a connecting arm (662), a fifth pressing plate (663), a second rotary clamping cylinder (664) and a second pressing block (665); the cylinder body part of the fifth pressing cylinder (661) is installed on the top of the support plate (62), the fifth pressing plate (663) is connected to the piston rod of the fifth pressing cylinder (661) through the connecting arm (662), the lower part of the fifth pressing plate (663) is provided with a second lifting lug pressing surface for pressing the second lifting lug (812), the cylinder body part of the second rotary clamping cylinder (664) is installed on the upper part of the fifth pressing plate (663), the piston rod of the second rotary clamping cylinder (664) movably passes through the upper part of the fifth pressing plate (663), the first end of the second pressing block (665) is connected with the piston rod of the second rotary clamping cylinder (664), and the tail end of the second pressing block (665) faces the second lifting lug pressing surface; the second rotary clamping cylinder (664) can drive the second pressing block (665) to rotate circumferentially around the axis of the piston rod; the second rotary clamping cylinder (664) can drive the second pressing block (665) to move towards or away from the second lifting lug pressing surface, so as to clamp or release the second lifting lug (812).

21. The welding positioning fixture of claim 20, wherein, The fifth pressing mechanism (66) further comprises a first hinged column (666), a second hinged column (667) and a fourth operating rod (668); the front part of the piston rod of the fifth pressing cylinder (661) is connected with the connecting arm (662), the rear part of the piston rod of the fifth pressing cylinder (661) extends from the rear part of the fifth pressing cylinder (661), the first hinged column (666) is fixedly connected to the rear part of the piston rod of the fifth pressing cylinder (661), the second hinged column (667) is fixedly connected to the rear part of the cylinder body part of the fifth pressing cylinder (661), the second hinged column (667) is located below the first hinged column (666), the bottom end of the fourth operating rod (668) is hinged to the second hinged column (667), and the middle part of the fourth operating rod (668) is hinged to the first hinged column (666).

22. The welding positioning fixture of claim 1, wherein, The welding positioning tool further comprises a sixth pressing mechanism for pressing the positioning block (821) against the side of the three-way catalyst mounting module (82), the sixth pressing mechanism (23) is installed on the side of the first positioning plate (22) of the first supporting mechanism (2), and the first positioning plate (22) is located between the sixth pressing mechanism (23) and the first pressing mechanism (3).

23. The welding positioning fixture of claim 22, wherein, The sixth pressing mechanism (23) comprises a third rotary clamping cylinder (231), a rotary arm (232) and a third pressing block (233); the cylinder body part of the third rotary clamping cylinder (231) is installed on the side of the first positioning plate (22), the third pressing block (233) is connected with the piston rod of the third rotary clamping cylinder (231) through the rotary arm (232), the third rotary clamping cylinder (231) can drive the third pressing block (233) to rotate around its axis, so that the third pressing block (233) moves between a third pressing position capable of pressing the positioning block (821) against the side of the three-way catalyst mounting module (82) and a third non-pressing position away from the side of the three-way catalyst mounting module (82); the side of the third pressing block (233) facing the three-way catalyst mounting module (82) is provided with a positioning groove (234) for fixing the positioning block (821).

24. A natural gas exhaust processor welded manufacturing system characterized by, The welding positioning tool comprises the welding positioning tool according to any one of claims 1-23. The welding positioning tool comprises the welding positioning tool according to any one of claims 1-23.

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