Welding forming clamping device for lower heat insulation cover for automobile mixer

Abstract

The utility model provides a lower heat shield welding forming clamping device for an automobile mixer, which comprises a bottom plate, a fixing table for fixing a mixer component is mounted on the surface of the bottom plate, and a lower heat shield is mounted on the surface of the mixer component; clamping mechanisms used for extruding the lower heat insulation cover are installed on the two sides of the bottom plate, and a pressing mechanism used for pressing the lower heat insulation cover and the mixer assembly downwards is installed on the surface of the bottom plate. The pressing mechanism comprises a first mounting base, a first air cylinder for driving a connecting frame to move up and down is mounted on the surface of the first mounting base, a pressing block and a compression plate are mounted at the edge of the connecting frame, a fixing plate is mounted on the side wall of the connecting frame, and the fixing plate abuts against the surface of the mixer assembly; the pressing block abuts against the joint of the fixing plate and the mixer assembly. The lower heat shield welding forming clamping device for the automobile mixer has the advantage that the lower heat shield can be conveniently and accurately installed on the surface of the mixer.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile exhaust treatment, especially relates to a lower heat shield welding forming clamping device for automobile mixer. BACKGROUND

[0002] Automobile exhaust emission refers to the gas and particulate matter emitted to the atmosphere in the running process of the automobile, and the exhaust gas includes carbon monoxide, nitrogen oxides, hydrocarbons and other pollutants, is one of the main sources of air pollution, and in the prior art, most of the harmful substances in automobile exhaust are removed by the DOC+DPF+mixer+SCR mode, the mixer breaks the urea and uniformly mixes the urea with the exhaust gas, and the mixed exhaust gas and urea enter the SCR inside uniformly, thereby improving the catalytic efficiency of the SCR on the exhaust gas.

[0003] When welding the mixer component, two lower heat shields need to be symmetrically welded at the bottom end of the mixer, the two ends of the lower heat shield are semicircular, the surface width of the lower heat shield gradually decreases along the direction from one end of the lower heat shield to the other end of the lower heat shield, the center of gravity of the lower heat shield is unevenly distributed, and the surface of the mixer is a special-shaped structure, so the lower heat shield installed on the surface of the mixer is easy to slide, which causes deviation of the welding position and reduces the welding quality.

[0004] Therefore, it is necessary to provide a new lower heat shield welding forming clamping device for automobile mixer to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem to provide a lower heat shield welding forming clamping device for automobile mixer which is convenient to accurately install the lower heat shield on the surface of the mixer.

[0006] To solve the above technical problem, the lower heat shield welding forming clamping device for automobile mixer provided by the utility model comprises a bottom plate, a fixing table for fixing a mixer assembly is installed on the surface of the bottom plate, and a lower heat shield is installed on the surface of the mixer assembly, clamping mechanisms for extruding the lower heat shield are installed on the two sides of the bottom plate, and a pressing mechanism for pressing the lower heat shield and the mixer assembly is installed on the surface of the bottom plate, the pressing mechanism comprises a first mounting seat, the first mounting seat is installed on the side wall of the bottom plate, a first cylinder for driving a connecting frame to move up and down is installed on the surface of the first mounting seat, a pressing block and a compression plate are installed at the edge of the connecting frame, and the compression plate abuts against the surface of the lower heat shield, a fixing plate is installed on the side wall of the connecting frame, the fixing plate abuts against the surface of the mixer assembly, and the pressing block abuts against the connection between the fixing plate and the mixer assembly.

[0007] Preferably, a plurality of support blocks are installed on the surface of the fixing table, and the support blocks abut against the surface of the mixer assembly.

[0008] Preferably, the side wall of the fixed table is provided with a plurality of first positioning plates and second positioning plates, and the side wall of the mixer assembly abuts against the side wall of the first positioning plate and the second positioning plate.

[0009] Preferably, the bottom end of the lower heat shield abuts against the top surface of the first positioning plate with a U-shaped side wall, and the compression plate abuts against the joint of the two lower heat shields.

[0010] Preferably, the surface of the mixer assembly is provided with a flange, and the fixed plate abuts against the surface of the flange.

[0011] Preferably, the edge of the pressing block is provided with a clamping block, and the clamping block abuts against the side wall of the flange.

[0012] Preferably, the clamping mechanism comprises a second mounting seat, the surface of the bottom plate is symmetrically pressed against the second mounting seat, the surface of the second mounting seat is provided with a second air cylinder for driving the forward and backward movement of the extrusion plate, and the top end of the U-shaped extrusion plate abuts against the side wall of the lower heat shield.

[0013] Compared with the related art, the automobile mixer lower heat shield welding forming clamping device has the following beneficial effects:

[0014] The automobile mixer lower heat shield welding forming clamping device comprises a fixed table, a mixer assembly, a lower heat shield, a clamping mechanism, a first air cylinder and a second air cylinder. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1A preferred embodiment structure schematic view of the automobile mixer lower heat shield welding forming clamping device provided by the utility model is shown in the figure;

[0016] Figure 2 For Figure 1 The clamping mechanism structure schematic view is shown in the figure;

[0017] Figure 3 For Figure 2 The A place structure enlarged schematic view is shown in the figure;

[0018] Figure 4 For Figure 1 The pressing mechanism structure schematic view is shown in the figure;

[0019] Figure 5 For Figure 1 The fixed table structure schematic view is shown in the figure;

[0020] Figure 6 For Figure 1 The mixer assembly and lower heat shield structure exploded schematic view is shown in the figure.

[0021] Marked in the figure: 1, bottom plate, 2, fixed table, 21, first positioning plate, 22, support block, 23, second positioning plate, 3, pressing mechanism, 31, first mounting seat, 32, first air cylinder, 33, connecting frame, 34, pressing block, 35, fixed plate, 36, clamping block, 37, compression plate, 4, clamping mechanism, 41, second air cylinder, 42, second mounting seat, 43, extrusion plate, 5, mixer assembly, 51, flange, 6, lower heat shield. Specific embodiments

[0022] The utility model is further described below in combination with the drawings and embodiments.

[0023] Please refer to Figures 1 to 6 , Figure 1 A preferred embodiment structure schematic view of the automobile mixer lower heat shield welding forming clamping device provided by the utility model is shown in the figure; Figure 2 For Figure 1 The clamping mechanism structure schematic view is shown in the figure; Figure 3 For Figure 2 The A place structure enlarged schematic view is shown in the figure; Figure 4 For Figure 1 The pressing mechanism structure schematic view is shown in the figure; Figure 5 For Figure 1 The fixed table structure schematic view is shown in the figure; Figure 6 For Figure 1The mixer assembly is shown with the lower heat shield structure exploded view. The automobile mixer with the lower heat shield welding forming clamping device includes: the bottom plate 1, the surface of the bottom plate 1 is mounted with the fixed table 2 for fixing the mixer assembly 5, the surface of the fixed table 2 is mounted with a plurality of support blocks 22, the support blocks 22 abut the surface of the mixer assembly 5, in order to facilitate the support blocks 22 to provide support to the surface of the mixer assembly 5, the mixer assembly 5 is horizontally located on the surface of the fixed table 2.

[0024] The sidewall of the fixed table 2 is mounted with a plurality of first positioning plates 21 and second positioning plates 23, and the sidewall of the mixer assembly 5 abuts the sidewall of the first positioning plates 21 and the second positioning plates 23, in order to facilitate the placement of the mixer assembly 5, the sidewall of the mixer assembly 5 abuts the sidewall of the first positioning plates 21 and the second positioning plates 23, the sidewall of the first positioning plates 21 and the second positioning plates 23 clamps the mixer assembly 5, avoiding the movement of the mixer assembly 5.

[0025] The surface of the mixer assembly 5 is mounted with the lower heat shield 6; the bottom end of the lower heat shield 6 abuts the top surface of the first positioning plate 21 with a "U" shaped sidewall, in order to facilitate the first positioning plate 21 to provide support to the lower heat shield 6, and the compression plate 37 abuts the joint of the two lower heat shields 6, in order to make the compression plate 37 extrude and fix the lower heat shield 6, preventing the lower heat shield 6 from shaking.

[0026] The two sides of the bottom plate 1 are mounted with clamping mechanisms 4 for extruding the lower heat shield 6, the clamping mechanisms 4 include second mounting seats 42, the surface of the bottom plate 1 is symmetrically placed on the second mounting seats 42, the surface of the second mounting seats 42 is mounted with second air cylinders 41 for driving the extrusion plate 43 to move forward and backward, the top end of the "U" shaped extrusion plate 43 abuts the sidewall of the lower heat shield 6; when the second air cylinder 41 is opened, the second air cylinder 41 drives the extrusion plate 43 to move towards the fixed table 2, the top end of the extrusion plate 43 extrudes the sidewall of the lower heat shield 6, fixing the lower heat shield 6 on the surface of the mixer assembly 5.

[0027] The surface of the bottom plate 1 is provided with a pressing mechanism 3 for pressing the lower heat shield 6 and the mixer assembly 5; the pressing mechanism 3 comprises a first mounting seat 31, the side wall of the bottom plate 1 is provided with the first mounting seat 31, the surface of the first mounting seat 31 is provided with a first cylinder 32 for driving the up-and-down movement of a connecting frame 33, a pressing block 34 and a compression plate 37 are mounted at the edge of the connecting frame 33, the compression plate 37 abuts against the surface of the lower heat shield 6; a fixed plate 35 is mounted on the side wall of the connecting frame 33, the fixed plate 35 abuts against the surface of the mixer assembly 5, and the pressing block 34 abuts against the joint of the fixed plate 35 and the mixer assembly 5; the surface of the mixer assembly 5 is provided with a flange 51, the fixed plate 35 abuts against the surface of the flange 51; a clamping block 36 is mounted at the edge of the pressing block 34, and the clamping block 36 abuts against the side wall of the flange 51; when the first cylinder 32 is opened, the first cylinder 32 drives the downward movement of the connecting frame 33, the connecting frame 33 drives the downward movement of the pressing block 34, the fixed plate 35 and the compression plate 37, the fixed plate 37 abuts against and presses the flange 51 on the surface of the mixer assembly 5, the fixed plate 37 presses the flange 51 downward to avoid the movement of the mixer assembly 5, and the fixed plate 37 has a large contact area with the flange 51 to avoid the damage of the surface of the mixer assembly 5; and the clamping block 36 at the side wall of the pressing block 34 abuts against the side wall of the flange 51, thereby fixing the flange 51 and the mixer assembly 5 to avoid the change of the position of the mixer assembly 5, and the downward movement of the compression plate 37 presses the joint of the two lower heat shields 6, thereby fixing the lower heat shield 6 again to make the lower heat shield 6 accurately jointed and pressed with the mixer assembly 5, avoid the misplacement of the lower heat shield 6 and the mixer assembly 5 during the welding process, and improve the welding quality.

[0028] The working principle of the lower heat shield welding forming clamping device for the automobile mixer is as follows: first, the mixing pipe assembly 5 is invertedly buckled on the surface of the fixing table 2, the support block 22 on the surface of the fixing table 2 provides support for the surface of the mixer assembly 5, and the first positioning plate 21 and the second positioning plate 23 abut and extrude the surface of the mixing pipe assembly 5, so that the mixer assembly 5 is fixed above the fixing table 1, and then the lower heat shield 6 is placed on the surface of the mixer assembly 5. The first air cylinder 32 is communicated with the air pump, the first air cylinder 32 is opened, the second air cylinder 41 drives the extrusion plate 43 to move towards the fixing table 2, the extrusion plate 43 extrudes the side wall of the lower heat shield 6, and the lower heat shield 6 is fixed on the surface of the mixer assembly 5; then the second air cylinder 41 is communicated with the air pump, the first air cylinder 32 is opened, the first air cylinder 32 drives the connecting frame 33 to move downwards, the connecting frame 33 drives the pressing block 34, the fixing plate 35 and the compression plate 37 to move downwards, the fixing plate 37 abuts and extrudes the flange 51 on the surface of the mixer assembly 5, the fixing plate 37 extrudes the flange 51 downwards, so that the mixer assembly 5 is prevented from moving, the contact area between the fixing plate 37 and the flange 51 is large, and the surface of the mixer assembly 5 is prevented from being damaged; and the clamping block 36 on the side wall of the pressing block 34 abuts against the side wall of the flange 51, so that the flange 51 and the mixer assembly 5 are fixed, the position of the mixer assembly 5 is prevented from being changed, and the compression plate 37 moves downwards to extrude the splicing portions of the two lower heat shields 6, so that the lower heat shield 6 is fixed again, the lower heat shield 6 and the mixer assembly 5 are accurately spliced and pressed tightly, and at this moment, the welding work of the mixer assembly 5 and the lower heat shield 6 can be performed.

[0029] The above only describes the embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, are all included in the patent protection range of the utility model.

Claims

1. A lower heat shield welding forming clamp device for a car mixer, characterized by, It includes: The surface of the bottom plate (1) is mounted with a fixed platform (2) for fixing the mixer assembly (5), and the surface of the mixer assembly (5) is mounted with a lower heat shield (6); The two sides of the bottom plate (1) are mounted with clamping mechanisms (4) for extruding the lower heat shield (6), and the surface of the bottom plate (1) is mounted with a pressing mechanism (3) for pressing the lower heat shield (6) and the mixer assembly (5); The pressing mechanism (3) includes a first mounting seat (31), the side wall of the bottom plate (1) is mounted with the first mounting seat (31), the surface of the first mounting seat (31) is mounted with a first cylinder (32) for driving the connecting frame (33) to move up and down, the edge of the connecting frame (33) is mounted with a pressing block (34) and a compression plate (37), the compression plate (37) abuts against the surface of the lower heat shield (6); The side wall of the connecting frame (33) is mounted with a fixed plate (35), the fixed plate (35) abuts against the surface of the mixer assembly (5), and the pressing block (34) abuts against the connection between the fixed plate (35) and the mixer assembly (5).

2. The lower heat shield welding forming clamp device for automotive mixers according to claim 1, characterized by, The surface of the fixed platform (2) is mounted with a plurality of supporting blocks (22), which abut against the surface of the mixer assembly (5).

3. The lower heat shield welding forming clamp device for automotive mixers according to claim 1, characterized by, The side wall of the fixed platform (2) is mounted with a plurality of first positioning plates (21) and second positioning plates (23), and the side wall of the mixer assembly (5) abuts against the side wall of the first positioning plate (21) and the second positioning plate (23).

4. The lower heat shield welding forming clamp device for automotive mixers according to claim 3, characterized by, The bottom end of the lower heat shield (6) abuts against the top surface of the first positioning plate (21) with a "U"-shaped side wall, and the compression plate (37) abuts against the joint of the two lower heat shields (6).

5. The lower heat shield welding forming clamp device for automotive mixers according to claim 1, characterized by, The surface of the mixer assembly (5) is provided with a flange (51), and the fixed plate (35) abuts against the surface of the flange (51).

6. The lower heat shield welding forming clamp device for automotive mixers according to claim 5, characterized by, The edge of the pressing block (34) is mounted with a clamping block (36), and the clamping block (36) abuts against the side wall of the flange (51).

7. The lower heat shield welding forming clamp apparatus for automotive mixers of claim 1, wherein, The clamping mechanism (4) includes a second mounting seat (42), the surface of the bottom plate (1) is symmetrically mounted on the second mounting seat (42), the surface of the second mounting seat (42) is mounted with a second cylinder (41) for driving the extrusion plate (43) to move forward and backward, and the top end of the "U"-shaped extrusion plate (43) abuts against the side wall of the lower heat shield (6).

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