Support and connecting shell welding forming clamping device for automobile mixer

Abstract

The utility model provides an automobile mixer support and connecting shell welding forming clamping device which comprises a base, a positioning plate used for fixing one end of a lower end cover is installed on the surface of the base, and a fixing mechanism used for fixing the other end of the lower end cover is installed above the base. The fixing mechanism comprises connecting rods, the two ends of each connecting rod are fixedly connected with the base and the fixing disc respectively, a plurality of clamping plates are installed on the side wall of the fixing disc, and the clamping plates are in sliding connection with sliding grooves in the side walls of clamping teeth. The top ends of the latches are clamped at the edge of the side wall of the lower end cover; a compression mechanism used for compressing the mixer assembly downwards is installed on the surface of the base, a support is installed on the surface of the mixer assembly, and a positioning mechanism used for fixing the support and the nozzle seat is installed on the surface of the base. The support and connecting shell welding forming clamping device for the automobile mixer has the advantage that the upper cover plate and the mixer assembly can be conveniently and accurately spliced.

Description

Technical Field

[0001] The utility model relates to the field of automobile mixer production, in particular to a welding and forming clamping device for an automobile mixer bracket and a connecting shell. Background Art

[0002] Particulate matter (such as PM2.5 and PM10) and harmful gases (such as carbon monoxide, nitrogen oxides, and sulfur dioxide) in automobile exhaust will pollute the air, causing a decline in air quality and causing harm to human health, especially the respiratory, cardiovascular, and immune systems. The pollutants in the exhaust gas are catalytically decomposed by the catalyst to reduce exhaust pollution. Most of the existing catalysts are DOC+DPF+mixer+SCR. The mixer breaks up the urea and mixes it evenly with the exhaust gas, making it easier for the pollutants in the exhaust gas to be decomposed in the SCR catalyst.

[0003] During the mixer production process, a lower cover plate needs to be welded to the bottom end of the mixer assembly. Since the surfaces of the lower cover plate and the mixer assembly are both special-shaped structures, misalignment is prone to occur at the joint between the two. In addition, a pipe is welded vertically at one end of the mixer assembly, which affects the splicing between the mixer assembly and the lower cover plate. Deviations are prone to occur at the assembly joint during welding, reducing the product qualification rate.

[0004] Therefore, it is necessary to provide a new automobile mixer bracket and connecting shell welding forming clamping device to solve the above problems. Utility Model Content

[0005] The technical problem solved by the utility model is to provide a welding and forming clamping device for a bracket and a connecting shell for an automobile mixer, which is convenient for accurately splicing an upper cover plate and a mixer component.

[0006] The cam is connected to the support frame of the vehicle mixer by a plurality of connecting rods, and the connecting rods are connected to the support frame of the vehicle mixer by a plurality of connecting rods.

[0007] Preferably, the mixer is assembled by a lower end cover, a bracket, a mixer assembly and a nozzle seat; the mixer assembly is mounted on the surface of the lower end cover, and the nozzle seat is welded to the surface of the mixer assembly.

[0008] Preferably, the fixing mechanism further comprises support columns, a plurality of the support columns are mounted on the surface of the fixing plate, and the support columns abut against the inner side wall of the mixer assembly.

[0009] Preferably, the positioning mechanism includes a first support plate, which is mounted on the surface of the base, and a second cylinder and a slide rail are mounted on the surface of the first support plate; the surface of the slide rail is slidably connected to the positioning frame, and one end of the second cylinder is connected to the positioning frame; a rubber sleeve is mounted on one end of the positioning frame, and the rubber sleeve contacts the nozzle seat; the surface of the positioning frame is magnetic, and the surface of the positioning frame adsorbs the bracket; a plurality of positioning pins are mounted on the side wall of the positioning frame, and the positioning pins pass through the through holes on the surface of the bracket.

[0010] Preferably, the compression mechanism includes a second support plate, and the third cylinder is fixed above the base through the second support plate. A connecting frame is installed at one end of the third cylinder, and a compression block is installed on the surface of the connecting frame, and the compression block contacts the surface of the mixer assembly.

[0011] Preferably, the first cylinder, the second cylinder and the third cylinder are all assembled from a cylinder body, a piston, a sealing ring, a telescopic rod and an air pipe; a plurality of the air pipes are respectively installed at both ends of the cylinder body, the interior of the cylinder body is slidingly connected to the piston and the telescopic rod, one end of the telescopic rod is fixedly connected to the piston, and the sealing ring is installed at the connection between the telescopic rod and the cylinder body.

[0012] Preferably, in the first cylinder, the side wall of the cylinder body is fixedly connected to the connecting plate, and one end of the telescopic rod is fixedly connected to the center of the bottom surface of the fixed plate.

[0013] Compared with the related art, the welding and forming clamping device for the bracket and the connecting shell of the automobile mixer provided by the present invention has the following beneficial effects:

[0014] The utility model provides a welding and forming clamping device for a bracket and a connecting shell of an automobile mixer, wherein the lower end cover is first placed on the surfaces of the positioning plate and the fixing plate, the two ends of the lower end cover are both semicircular, the end with a smaller diameter of the lower end cover is fixed by the positioning plate, and the end with a larger diameter of the lower end cover is fixed by the fixing plate, so that the lower end cover is horizontally located on the surface of the base; the first cylinder is opened to move the connecting plate away from the fixing plate, and the connecting plate drives the latching teeth to move. At this time, the "V"-shaped sliding groove slides on the side wall of the clamping plate, and the clamping plate presses the latching teeth, so that the top end of the latching teeth moves toward the direction of the fixing plate, and the latching teeth press the edge of the lower end cover to fix the lower end cover, and then the mixer assembly is placed on the surface of the lower end cover, and the compression mechanism is used to press downward to make the connection between the mixer assembly and the lower end cover tightly attached, so as to avoid the position displacement of the two during welding and provide a good welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a preferred embodiment of a clamping device for welding a bracket and a connecting shell for an automobile mixer provided by the present invention;

[0016] Figure 2 for Figure 1 The schematic diagram of the installation of the lower end cover is shown;

[0017] Figure 3 for Figure 2 The schematic diagram of the fixed disk structure shown;

[0018] Figure 4 for Figure 3 An enlarged schematic diagram of the structure at point A is shown;

[0019] Figure 5 for Figure 2 The schematic diagram of the positioning plate structure shown;

[0020] Figure 6 for Figure 1 The schematic diagram of the positioning mechanism structure shown;

[0021] Figure 7 A schematic diagram of the internal structure of the cylinder provided by the utility model;

[0022] Figure 8 for Figure 1 Schematic diagram of the mixer structure shown.

[0023] Numbers in the figure: 1. base, 2. fixing mechanism, 21. connecting rod, 22. latch, 23. support column, 24. fixing plate, 25. connecting plate, 26. first cylinder, 27. slide, 28. clamping plate, 3. mixer, 31. lower end cover, 32. bracket, 33. mixer assembly, 34. nozzle seat, 4. positioning mechanism, 41. second cylinder, 42. first support plate, 43. positioning frame, 44. rubber sleeve, 45. positioning pin, 46. slide rail, 5. compression mechanism, 51. second support plate, 52. connecting frame, 53. compression block, 54. third cylinder, 6. positioning plate, 71. cylinder body, 72. piston, 73. sealing ring, 74. telescopic rod, 75. air pipe. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0025] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 , Figure 1 A schematic structural diagram of a preferred embodiment of a clamping device for welding a bracket and a connecting shell for an automobile mixer provided by the present invention; Figure 2 for Figure 1 The schematic diagram of the installation of the lower end cover is shown; Figure 3 for Figure 2 The schematic diagram of the fixed disk structure shown; Figure 4 for Figure 3 An enlarged schematic diagram of the structure at point A is shown; Figure 5 for Figure 2 The schematic diagram of the positioning plate structure shown; Figure 6 for Figure 1 The schematic diagram of the positioning mechanism structure shown; Figure 7 A schematic diagram of the internal structure of the cylinder provided by the utility model; Figure 8 for Figure 1The schematic diagram of the mixer structure is shown. The automobile mixer bracket and the connecting shell are welded to form a clamping device, which includes: a base 1, a positioning plate 6 for fixing one end of the lower end cover 31 is installed on the surface of the base 1, the surface of the positioning plate 6 is an arc-shaped structure, and a fixing mechanism 2 for fixing the other end of the lower end cover 31 is installed above the base 1; the fixing mechanism 2 includes a connecting rod 21, and the two ends of multiple connecting rods 21 are respectively fixedly connected to the base 1 and the fixed disk 24, and the side wall of the fixed disk 24 is engaged with the lower end cover 31; a plurality of clamping plates 28 are installed on the side wall of the fixed disk 24, and the clamping plates 28 are slidably connected to the slide grooves 27 on the side walls of the clamping teeth 22, and the side walls of the slide grooves 27 are in a "V"-shaped structure; the top end of the clamping teeth 22 is engaged with the side wall edge of the lower end cover 31, and the bottom end of the clamping teeth 22 is rotatably connected to the connecting plate 25, and the connecting The first cylinder 26 is installed on the side wall of the plate 25; first, the lower end cover 31 is placed on the surface of the positioning plate 6 and the fixed disk 24, and both ends of the lower end cover 31 are semicircular, and the end with a smaller diameter of the lower end cover 31 is fixed by the positioning plate 6, and the end with a larger diameter of the lower end cover 31 is fixed by the fixed disk 24, so that the lower end cover 3 is horizontally located on the surface of the base 1; open the first cylinder 26 to move the connecting plate 25 away from the fixed disk 24, and the connecting plate 25 drives the latch gear 22 to move, and at this time the "V"-shaped slide groove 27 slides on the side wall of the clamping plate 28, and the clamping plate 28 squeezes the latch gear 22, so that the top end of the latch gear 22 moves toward the direction of the fixed disk 24, and the latch gear 22 squeezes the edge of the lower end cover 31 to fix the lower end cover 31.

[0026] The first cylinder 26, the second cylinder 41 and the third cylinder 54 are all assembled by a cylinder body 71, a piston 72, a sealing ring 73, a telescopic rod 74 and an air pipe 75; a plurality of air pipes 75 are installed at both ends of the cylinder body 71, and the piston 72 and the telescopic rod 74 are slidably connected inside the cylinder body 71. One end of the telescopic rod 74 is fixedly connected to the piston 72, and a sealing ring 73 is installed at the connection between the telescopic rod 74 and the cylinder body 71. The sealing ring 73 increases the sealing between the telescopic rod 74 and the cylinder body 71 to prevent air leakage; when the second cylinder 41 and the third cylinder 54 are in operation, they are connected to an air pump through the air pipe 75. The air pump delivers gas to one end of the interior of the cylinder body 71 through the air pipe 75, changing the pressure on both sides of the piston 72. At the same time, the air pipe 75 at the other end of the cylinder body 71 is opened to discharge gas to the outside, thereby pushing the piston 72 and the telescopic rod 74 to move back and forth inside the cylinder body 71.

[0027] In the first cylinder 26, the side wall of the cylinder body 71 is fixedly connected to the connecting plate 25, and one end of the telescopic rod 74 is fixedly connected to the center of the bottom surface of the fixed disk 24. When the latch 22 squeezes and fixes the lower end cover 31, the air pipe 75 at the bottom end of the first cylinder 26 is connected to the air pump, and the air pipe 75 at the top end of the first cylinder 26 is opened. As the gas continuously enters the bottom end of the cylinder body 71, one end of the telescopic rod 74 is fixed by the fixed disk 24, and the internal pressure of the bottom end of the cylinder body 71 gradually increases. At this time, the cylinder body 71 drives the connecting plate 25 to slide downward along the side wall of the telescopic rod 74, thereby pushing the latch 22 to rotate, squeeze and fix the lower end cover 31.

[0028] The surface of the base 1 is installed with a compression mechanism 5 for compressing the mixer assembly 33 downward, and the compression mechanism 5 includes a second support plate 51, and a third cylinder 54 is fixed to the top of the base 1 through the second support plate 51. A connecting frame 52 is installed at one end of the third cylinder 54, and a compression block 53 is installed on the surface of the connecting frame 52, and the compression block 53 contacts the surface of the mixer assembly 33. When the mixer assembly 33 is spliced ​​and aligned with the lower end cover 31, the third cylinder 54 is opened, and the third cylinder 54 drives the connecting frame 52 and the compression block 53 to move downward, so that the compression block 53 squeezes the surface of the mixer assembly 33, so that the lower end cover 31 and the mixer assembly 33 fit tightly.

[0029] The fixing mechanism 2 also includes support columns 23. A plurality of support columns 23 are installed on the surface of the fixing plate 24, and the support columns 23 contact the inner wall of the mixer assembly 33. In order to facilitate the support columns 23 to provide support to the inside of the mixer assembly 33, the mixer assembly 33 is prevented from being deformed when the compression block 33 is squeezed.

[0030] The surface of the mixer assembly 33 is mounted with a bracket 32, and the surface of the base 1 is mounted with a positioning mechanism 4 for fixing the bracket 32 ​​and the nozzle holder 34; the positioning mechanism 4 includes a first support plate 42, which is mounted on the surface of the base 1, and a second cylinder 41 and a slide rail 46 are mounted on the surface of the first support plate 42; the surface of the slide rail 46 is slidably connected to the positioning frame 43, and one end of the second cylinder 41 is connected to the positioning frame 43; a rubber sleeve 44 is mounted on one end of the positioning frame 43, and the rubber sleeve 44 contacts the nozzle holder 34; the surface of the positioning frame 43 is magnetic, and the surface of the positioning frame 43 adsorbs the bracket 32; a plurality of positioning pins 45 are mounted on the side wall of the positioning frame 43 , and the positioning pin 45 passes through the through hole on the surface of the bracket 32; the bracket 32 ​​passes through the positioning pin 45 and contacts the positioning frame 43, the positioning pin 45 makes the bracket 32 ​​accurately contact the installation position on the surface of the positioning frame 43, and the surface of the positioning frame 43 has a magnetic shape, and the positioning frame 43 adsorbs and fixes the bracket 32; open the second cylinder 41, the second cylinder 41 drives the positioning frame 43 to move downward along the slide rail 46, the bracket 32 ​​contacts and squeezes the surface of the mixer assembly 33, the rubber sleeve 44 squeezes the nozzle seat 34, fixes the bracket 32 ​​and the nozzle seat 34, and presses the mixer assembly 33 downward to further fix the mixer assembly 33.

[0031] The mixer 3 is composed of a lower end cover 31 , a bracket 32 ​​, a mixer assembly 33 and a nozzle holder 34 . The mixer assembly 33 is mounted on the surface of the lower end cover 31 , and the nozzle holder 34 is welded to the surface of the mixer assembly 33 .

[0032] The working principle of the welding and clamping device for the bracket and connecting shell of an automobile mixer provided by the present invention is as follows: the lower end cover 31 is placed on the surfaces of the positioning plate 6 and the fixed disk 24, and both ends of the lower end cover 31 are semicircular. The end with a smaller diameter of the lower end cover 31 is fixed by the positioning plate 6, and the end with a larger diameter of the lower end cover 31 is fixed by the fixed disk 24, so that the lower end cover 3 is horizontally located on the surface of the base 1; the first cylinder 26 is connected to the air pump through the air pipe 75, and the first cylinder 26 is turned on to move the connecting plate 25 away from the fixed disk 24, and the connecting plate 25 drives the latching teeth 22 to move. At this time, the "V"-shaped sliding groove 27 slides on the side wall of the latching plate 28, and the latching plate 28 presses the latching teeth 22, so that the top ends of the latching teeth 22 move toward the fixed disk 24, and the latching teeth 22 press the edge of the lower end cover 31 to fix the lower end cover 31. The mixer assembly 33 is placed on the surface of the lower end cover 31. After the mixer assembly 33 is aligned with the lower end cover 31, the third cylinder 54 is turned on. The third cylinder 54 drives the connecting frame 52 and the compression block 53 to move downward, so that the compression block 53 squeezes the surface of the mixer assembly 33, so that the lower end cover 31 and the mixer assembly 33 fit tightly. The bracket 32 ​​is passed through the positioning pin 45 to contact the positioning frame 43. The positioning pin 45 enables the bracket 32 ​​to accurately contact the installation position on the surface of the positioning frame 43, and the surface of the positioning frame 43 has a magnetic shape. The positioning frame 43 adsorbs and fixes the bracket 32; open the second cylinder 41, and the second cylinder 41 drives the positioning frame 43 to move downward along the slide rail 46. The bracket 32 ​​contacts and squeezes the surface of the mixer assembly 33, and the rubber sleeve 44 squeezes the nozzle seat 34 to fix the bracket 32 ​​and the nozzle seat 34, and at the same time presses the mixer assembly 33 downward to further fix the mixer assembly 33. After the various components of the mixer 3 are spliced, welding can be carried out.

[0033] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A clamping device for welding a bracket and a connecting shell for an automobile mixer, characterized in that: include: A base (1), a positioning plate (6) for fixing one end of the lower end cover (31) is mounted on the surface of the base (1), the surface of the positioning plate (6) having an arc-shaped structure, and a fixing mechanism (2) for fixing the other end of the lower end cover (31) is mounted above the base (1); The fixing mechanism (2) includes a connecting rod (21), and the two ends of the plurality of connecting rods (21) are respectively fixedly connected to the base (1) and the fixed disk (24), and the side wall of the fixed disk (24) is engaged with the lower end cover (31); a plurality of clamping plates (28) are installed on the side wall of the fixed disk (24), and the clamping plates (28) are slidably connected to the slide groove (27) on the side wall of the clamping teeth (22), and the side wall of the slide groove (27) is in a "V"-shaped structure; the top end of the clamping teeth (22) is engaged with the side wall edge of the lower end cover (31), and the bottom end of the clamping teeth (22) is rotatably connected to the connecting plate (25), and the side wall of the connecting plate (25) is installed with the first cylinder (26); The surface of the base (1) is mounted with a compression mechanism (5) for downwardly compressing the mixer assembly (33), the surface of the mixer assembly (33) is mounted with a bracket (32), and the surface of the base (1) is mounted with a positioning mechanism (4) for fixing the bracket (32) and the nozzle holder (34).

2. The automobile mixer bracket and connecting shell welding forming clamping device according to claim 1, characterized in that: The mixer (3) is assembled by a lower end cover (31), a bracket (32), a mixer assembly (33) and a nozzle seat (34); the mixer assembly (33) is mounted on the surface of the lower end cover (31), and the nozzle seat (34) is welded to the surface of the mixer assembly (33).

3. The automobile mixer bracket and connecting shell welding forming clamping device according to claim 2, characterized in that: The fixing mechanism (2) further comprises support columns (23), a plurality of the support columns (23) are mounted on the surface of the fixing plate (24), and the support columns (23) abut against the inner side wall of the mixer assembly (33).

4. The automobile mixer bracket and connecting shell welding forming clamping device according to claim 2, characterized in that: The positioning mechanism (4) includes a first support plate (42), the first support plate (42) is mounted on the surface of the base (1), and a second cylinder (41) and a slide rail (46) are mounted on the surface of the first support plate (42); the surface of the slide rail (46) is slidably connected to the positioning frame (43), and one end of the second cylinder (41) is connected to the positioning frame (43); a rubber sleeve (44) is mounted on one end of the positioning frame (43), and the rubber sleeve (44) abuts against the nozzle seat (34); the surface of the positioning frame (43) is magnetic, and the surface of the positioning frame (43) adsorbs the bracket (32); a plurality of positioning pins (45) are mounted on the side wall of the positioning frame (43), and the positioning pins (45) pass through the through holes on the surface of the bracket (32).

5. The automobile mixer bracket and connecting shell welding forming clamping device according to claim 4, characterized in that: The compression mechanism (5) includes a second support plate (51), a third cylinder (54) is fixed above the base (1) via the second support plate (51), a connecting frame (52) is installed at one end of the third cylinder (54), a compression block (53) is installed on the surface of the connecting frame (52), and the compression block (53) contacts the surface of the mixer assembly (33).

6. The welding and forming clamping device for the bracket and the connecting shell of the automobile mixer according to claim 5, characterized in that: The first cylinder (26), the second cylinder (41) and the third cylinder (54) are all assembled from a cylinder body (71), a piston (72), a sealing ring (73), a telescopic rod (74) and an air pipe (75); a plurality of air pipes (75) are respectively installed at both ends of the cylinder body (71); the interior of the cylinder body (71) is slidably connected to the piston (72) and the telescopic rod (74); one end of the telescopic rod (74) is fixedly connected to the piston (72), and the sealing ring (73) is installed at the connection between the telescopic rod (74) and the cylinder body (71).

7. The automobile mixer bracket and connecting shell welding forming clamping device according to claim 6, characterized in that: In the first cylinder (26), the side wall of the cylinder body (71) is fixedly connected to the connecting plate (25), and one end of the telescopic rod (74) is fixedly connected to the center of the bottom surface of the fixed plate (24).

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