Welding device for three-way catalytic converter machining

Abstract

The utility model belongs to the technical field of three-way catalytic converter machining, and particularly discloses a welding device for three-way catalytic converter machining, which comprises a device frame, a screw rod is rotatably connected to the inner side of the device frame, a rotating handle is fixedly connected to the top of the screw rod, an opposite moving plate is sleeved on the outer surface of the screw rod in a threaded manner, and the opposite moving plate is fixedly connected with the rotating handle. A clamping plate is movably installed below the opposite moving plate through a push-pull mechanism, and a clamping hole is formed in the outer surface of the clamping plate. According to the welding device for three-way catalytic converter machining, the screw rod can be driven to rotate by rotating the rotating handle, then the two sets of opposite moving plates are linked to move in a staggered mode in the vertical direction, the push-pull mechanism is matched, the clamping plate can be driven to rotate automatically, and in the process, the welding angle of the three-way catalytic converter on the clamping plate can be adjusted; the three-way catalyst does not need to be fixed and adjusted repeatedly, small changes of the welding position in the welding process are reduced, and therefore the stability and consistency of the welding quality are improved.

Description

Technical Field

[0001] The present application relates to the technical field of three-way catalytic converter processing, and specifically to a welding device for three-way catalytic converter processing. Background Art

[0002] The three-way catalytic converter is the most important external purification device installed in the automobile exhaust system. It can convert harmful gases such as CO, HC and NOx emitted from automobile exhaust into harmless carbon dioxide, water and nitrogen through oxidation and reduction.

[0003] Currently, when welding a three-way catalytic converter, the shell of the three-way catalytic converter needs to be repeatedly fixed so that the welding gun can perform circumferential welding at different angles. The repeated fixing steps are relatively cumbersome, and the process of repeatedly fixing the shell may cause slight changes in the welding position during the welding process, which may easily affect the stability of the welding quality. Utility Model Content

[0004] In view of this, the purpose of the utility model is to solve the shortcomings existing in the background technology, and to propose a welding device for processing a three-way catalytic converter to solve the problems existing in the prior art.

[0005] To achieve the above purpose, the utility model provides a welding device for processing a three-way catalytic converter, including a device frame, a screw rod is rotatably connected to the inner side of the device frame, a handle is fixedly connected to the top of the screw rod, an opposing shift plate is threadedly sleeved on the outer surface of the screw rod, a locking plate is movably installed below the opposing shift plate through a push-pull mechanism, a locking hole is provided on the outer surface of the locking plate, a fixing mechanism for fixing the three-way catalytic converter is provided on the locking plate, and threads of the same length and opposite directions are provided on the outer surface of the screw rod from the middle to both ends, so as to allow the two sets of opposing shift plates to move in opposite directions.

[0006] Preferably, the push-pull mechanism includes a guide push rod fixedly connected to the outer surface of the opposite shift plate, the outer surface of the guide push rod is fixedly sleeved with a fixed seat, and the outer surface of the fixed seat is fixedly connected with a seat shaft. The push-pull mechanism can allow the two groups of connecting bars to move up and down in an offset manner, thereby performing a steering operation on the positioning plate.

[0007] Preferably, the outer surface of the seat shaft is rotatably connected with a connecting rod, the bottom of the connecting rod is rotatably connected with a plate shaft, the outer surface of the plate shaft is fixedly connected to the outer surface of the positioning plate, and the guide push rods and related components such as the connecting rods are designed in two groups, one group of guide push rods corresponds to an opposing shift plate, and the other end of the guide push rod passes through another opposing shift plate, which plays a role in relative limiting and driving the fixed seat at the same time.

[0008] Preferably, the retaining mechanism comprises a fixing frame fixedly connected to the outer surface of the locking plate, a rotating shaft is fixedly penetrated through the inner side of the fixing frame, and the number of rotating shafts is set in two groups, and the three-way catalytic converter can be stably fixed in the locking hole on the locking plate through the retaining mechanism.

[0009] Preferably, the outer surfaces of the two groups of rotating shafts are rotatably connected to the first hoop frame and the second hoop frame respectively, and the inner surface of the second hoop frame is rotatably connected to the frame shaft.

[0010] Preferably, a screw is fixedly connected to the outer surface of the frame shaft, and a nut is threadedly sleeved on the outer surface of the screw.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The welding device for processing three-way catalytic converters can drive the screw to rotate by rotating the handle, thereby linking the two sets of opposite shifting plates to move in the vertical direction, and cooperate with the push-pull mechanism to drive the positioning plate to make it rotate. During this process, the three-way catalytic converter on the positioning plate can adjust the welding angle, and there is no need to repeatedly fix and adjust the three-way catalytic converter, which reduces the slight changes in the welding position during the welding process, thereby improving the stability and consistency of the welding quality.

[0013] 2. The welding device for processing three-way catalytic converters, after the first and second clamps firmly clamp the three-way catalytic converter, the two sets of clamps are limited by screws and nuts, so that the first and second clamps can stably clamp different types of three-way catalytic converters, effectively improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of this application;

[0015] Figure 2 This is a schematic diagram of the surface structure of the card slot board in this application;

[0016] Figure 3 This is a schematic diagram of the first and second hoop structures of this application;

[0017] Figure 4 This is a schematic diagram of the screw surface structure of this application.

[0018] Among them: 1. Installation frame; 2. Screw; 3. Rotary handle; 4. Opposite moving plate; 5. Guide push rod; 6. Fixed seat; 7. Seat shaft; 8. Connecting bar; 9. Plate shaft; 10. Clamping plate; 11. Clamping hole; 12. Fixed frame; 13. Rotating shaft; 14. First hoop frame; 15. Second hoop frame; 16. Frame shaft; 17. Screw; 18. Nut. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only 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 creative work are within the scope of protection of this application.

[0020] See also Figure 1-4 A welding device for processing a three-way catalytic converter comprises a device frame 1, a screw rod 2 is rotatably connected to the inner side of the device frame 1, a rotary handle 3 is fixedly connected to the top of the screw rod 2, a counter shift plate 4 is threadedly sleeved on the outer surface of the screw rod 2, a positioning plate 10 is movably installed below the counter shift plate 4 through a push-pull mechanism, a positioning hole 11 is opened on the outer surface of the positioning plate 10, and a fixing mechanism for fixing the three-way catalytic converter is arranged on the positioning plate 10.

[0021] Through the above technical solution, the device can stably fix the three-way catalytic converter through the fixing mechanism when in use, and the handle 3 can be rotated to drive the screw 2 to rotate during the welding process. During the reverse movement of the two sets of opposing shifting plates 4, the push-pull mechanism can be cooperated to rotate the three-way catalytic converter on the locking plate 10.

[0022] Specifically, the push-pull mechanism includes a guide push rod 5 fixedly connected to the outer surface of the opposite shift plate 4, the outer surface of the guide push rod 5 is fixedly sleeved with a fixed seat 6, and the outer surface of the fixed seat 6 is fixedly connected to a seat shaft 7.

[0023] Through the above technical solution, while the opposing shift plate 4 drives the guide push rod 5 to move, the guide push rod 5 passes through the other opposing shift plate 4.

[0024] Specifically, the outer surface of the seat shaft 7 is rotatably connected with a connecting bar 8 , the bottom of the connecting bar 8 is rotatably connected with a plate shaft 9 , and the outer surface of the plate shaft 9 is fixedly connected to the outer surface of the locking plate 10 .

[0025] Through the above technical solution, after the two groups of connecting bars 8 are driven, they will perform offset and reverse displacement in the vertical direction.

[0026] Specifically, the retaining mechanism includes a fixing frame 12 fixedly connected to the outer surface of the locking plate 10 , and a rotating shaft 13 is fixedly penetrated through the inner side of the fixing frame 12 , and the number of the rotating shaft 13 is set to two groups.

[0027] Through the above technical solution, when the first hoop frame 14 and the second hoop frame 15 rotate along the corresponding rotating shaft 13, the other ends of the two sets of hoop frames can be brought closer or farther away.

[0028] Specifically, the outer surfaces of the two sets of rotating shafts 13 are rotatably connected to the first hoop frame 14 and the second hoop frame 15 respectively, and the inner surface of the second hoop frame 15 is rotatably connected to the frame shaft 16 .

[0029] Through the above technical solution, a groove is formed at one end of the first hoop 14 away from the rotating shaft 13 to facilitate the smooth insertion of the screw 17 .

[0030] Specifically, a screw 17 is fixedly connected to the outer surface of the frame shaft 16 , and a nut 18 is threadedly sleeved on the outer surface of the screw 17 .

[0031] Through the above technical solution, the nut 18 will move axially during the rotation of the screw 17 until the nut 18 is tightly against the first hoop 14, so that the two groups of hoops can be stably limited.

[0032] Working principle: When the device is in use, first insert the three-way catalytic converter into the clamping hole 11 on the clamping plate 10, then rotate the first clamping frame 14 and the second clamping frame 15 along the rotating shaft 13 respectively until the two sets of clamping frames clamp the three-way catalytic converter firmly. At this time, the screw 17 can be turned to make it rotate synchronously with the frame shaft 16. When the screw 17 is rotated to be embedded in the groove at the end of the first clamping frame 14, the nut 18 can be screwed along the screw 17. When the nut 18 is screwed on the surface of the screw 17 and moves to tightly against the first clamping frame 14, the two sets of clamping frames are stably limited. At this time, the three-way catalytic converter is firmly clamped on the clamping plate 10 to maintain the welding process. Stability: During the welding process, the handle 3 can be rotated to drive the screw 2 to rotate. During the rotation of the screw 2, the two sets of opposite shifting plates 4 will move in opposite directions in the vertical direction, and then push the fixed seat 6 through the guide push rod 5. At this time, the fixed seat 6 will exert force on the corresponding connecting rod 8 through the seat shaft 7 on its surface, so that the two sets of connecting rods 8 are offset and move in opposite directions. Finally, the bottom end of the connecting rod 8 will rotate along the plate shaft 9, and the positioning plate 10 will be driven by the plate shaft 9, so that the positioning plate 10 rotates, that is, the three-way catalytic converter on the positioning plate 10 rotates accordingly, and the angle of the three-way catalytic converter can be adjusted without repeated fixation, so that the welding gun can perform circumferential welding at different angles.

[0033] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A welding device for processing a three-way catalytic converter, comprising a device frame (1), characterized in that: A screw rod (2) is rotatably connected to the inner side of the device frame (1), a handle (3) is fixedly connected to the top of the screw rod (2), a counter-moving plate (4) is threadedly sleeved on the outer surface of the screw rod (2), a locking plate (10) is movably installed below the counter-moving plate (4) through a push-pull mechanism, a locking hole (11) is provided on the outer surface of the locking plate (10), and a fixing mechanism for fixing the three-way catalytic converter is provided on the locking plate (10).

2. A welding device for processing a three-way catalytic converter according to claim 1, characterized in that: The push-pull mechanism comprises a guide push rod (5) fixedly connected to the outer surface of the opposing shift plate (4); a fixed seat (6) is fixedly sleeved on the outer surface of the guide push rod (5); and a seat shaft (7) is fixedly connected to the outer surface of the fixed seat (6).

3. A welding device for processing a three-way catalytic converter according to claim 2, characterized in that: The outer surface of the seat shaft (7) is rotatably connected to a connecting bar (8), the bottom of the connecting bar (8) is rotatably connected to a plate shaft (9), and the outer surface of the plate shaft (9) is fixedly connected to the outer surface of the locking plate (10).

4. The welding device for processing a three-way catalytic converter according to claim 1, characterized in that: The retaining mechanism comprises a fixing frame (12) fixedly connected to the outer surface of the locking plate (10), a rotating shaft (13) is fixedly penetrated through the inner side of the fixing frame (12), and the number of the rotating shafts (13) is arranged in two groups.

5. A welding device for processing a three-way catalytic converter according to claim 4, characterized in that: The outer surfaces of the two groups of rotating shafts (13) are rotatably connected to a first hoop frame (14) and a second hoop frame (15), respectively, and the inner surface of the second hoop frame (15) is rotatably connected to a frame shaft (16).

6. A welding device for processing a three-way catalytic converter according to claim 5, characterized in that: The outer surface of the frame shaft (16) is fixedly connected with a screw (17), and the outer surface of the screw (17) is threadedly sleeved with a nut (18).

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