A clamping device for welding a forklift outlet flange and a straight pipe

Abstract

This utility model provides a clamping device for welding a forklift exhaust flange to a straight pipe, including a base. One end of the base is fixedly connected to a support seat, and a positioning block is installed at the top of the support seat. The straight pipe is fitted onto the side wall of the positioning block. A rubber pad is annularly mounted on the side wall of the positioning block, and the rubber pad presses against the inner side wall of the straight pipe. The other end of the base has symmetrical slide rails, and a mounting seat is slidably connected to the surface of the slide rails. A positioning disc with a "T"-shaped cross-section is installed at the top of the mounting seat, and the positioning disc internally engages with a flange. A cylinder is installed at the top of the mounting seat, and a fixing tooth is rotatably connected to the side wall of the cylinder, with one end of the fixing tooth abutting and pressing against the side wall of the flange. The clamping device for welding a forklift exhaust flange to a straight pipe provided by this utility model has the advantages of improving welding quality and ensuring the quality of the welded product.

Description

Technical Field

[0001] This utility model relates to the field of forklift exhaust assembly manufacturing technology, and in particular to a clamping device for welding forklift exhaust flange and straight pipe. Background Technology

[0002] With the increasing number of forklifts, forklift exhaust fumes have a significant impact on the environment. Using catalytic converters to reduce pollution and emissions is one of the key technologies for forklift exhaust aftertreatment. When internal combustion forklifts are used indoors, due to poor ventilation, forklift purifiers are needed to remove harmful toxic and irritating gases and particulate matter from the exhaust. Existing forklift purifiers mostly use DPF catalysts coated with precious metals to remove harmful substances from the exhaust. The DPF is installed in the forklift engine exhaust system and uses the filtering characteristics of its inner wall (with micropores) to reduce particulate matter in the exhaust. However, the DPF cannot be directly connected to the forklift. The DPF's intake end connects to the intake assembly and is fixed to the forklift body, while the DPF's outlet end connects to the exhaust assembly for the purified gas discharge. The exhaust assembly is assembled and welded from various components.

[0003] During the production of the exhaust assembly, a straight pipe for conveying exhaust gas needs to be welded to the side wall of the exhaust flange. The straight pipe is a hollow cylinder, and the exhaust flange is annular. Both have smooth surfaces and are difficult to fix. During the welding process, the straight pipe is prone to shaking inside the exhaust flange, and the two may become misaligned, reducing the welding quality.

[0004] Therefore, it is necessary to provide a new clamping device for welding forklift exhaust flanges and straight pipes to solve the above problems. Utility Model Content

[0005] The technical problem solved by this utility model is to provide a clamping device for welding forklift exhaust flanges and straight pipes to improve welding quality and ensure the consistency of welded products.

[0006] To solve the above-mentioned technical problems, the present invention provides a clamping device for welding a forklift exhaust flange and a straight pipe, comprising: a base, one end of which is fixedly connected to a support seat, a positioning block is installed at the top of the support seat, and the straight pipe is fitted onto the side wall of the positioning block; a rubber pad is installed in an annular shape on the side wall of the positioning block, and the rubber pad presses against the inner side wall of the straight pipe; a symmetrical slide rail is mounted at the other end of the base, and a mounting seat is slidably connected to the surface of the slide rail; a positioning disc with a "T"-shaped cross-section is installed at the top of the mounting seat, and the interior of the positioning disc is fitted with a flange; a cylinder is installed at the top of the mounting seat, and a fixing tooth is rotatably connected to the side wall of the cylinder, and one end of the fixing tooth abuts against and presses against the side wall of the flange.

[0007] Preferably, a cylinder is mounted on the side wall of the base, and a piston rod is slidably connected inside the cylinder, with one end of the piston rod fixedly connected to the mounting base.

[0008] Preferably, in the cylinder on the surface of the mounting base, one end of the piston rod inside the cylinder is fixedly connected to the surface of the mounting base.

[0009] Preferably, the sidewalls of the mounting base are symmetrically fitted with clamping plates, the sidewalls of the clamping plates are fitted with fixing shafts, and the fixing shafts are slidably connected to the fixing teeth.

[0010] Preferably, the sidewall of the fixed tooth is provided with a "V"-shaped groove, and the fixed shaft is slidably connected inside the groove.

[0011] Preferably, the sidewall of the rubber pad has an arc-shaped structure, and the height of the rubber pad gradually increases along the mounting base towards the support base.

[0012] Compared with related technologies, the clamping device for welding forklift exhaust flanges and straight pipes provided by this utility model has the following advantages:

[0013] This utility model provides a clamping device for welding a forklift exhaust flange to a straight pipe. The straight pipe is fitted onto the surface of a positioning block. A rubber pad on the side wall of the positioning block is pressed against the inner wall of the straight pipe, securing the straight pipe to one end of the positioning block. The flange is then clipped onto the surface of a positioning plate. Opening the cylinder at the top of the mounting base causes the cylinder to rotate, pushing the fixing teeth against and pressing the side wall of the flange, thus fixing the flange to the surface of the positioning plate. The device is mounted on a slide rail. The fixed seat slides along the side wall, bringing the flange and the straight pipe closer together. Multiple rubber pads are placed between the straight pipes. By shaking the straight pipe, it is finely adjusted to align the straight pipe with the center of the flange, facilitating the straight pipe's entry into the flange and contact with the positioning plate. The straight pipe and flange are then pressed together and fixed, reducing the need for welding and ensuring that parts do not shift or deform during assembly and welding, thus improving welding quality. Furthermore, the straight pipe and flange are fixed using this device during welding, ensuring the consistency of the welded products. Attached Figure Description

[0014] Figure 1 A schematic diagram of a preferred embodiment of the clamping device for welding forklift exhaust flange and straight pipe provided by this utility model;

[0015] Figure 2 for Figure 1 The diagram shows the structure of the positioning block.

[0016] Figure 3 for Figure 1 The diagram shows the fixed tooth structure.

[0017] Figure 4 for Figure 3 The diagram shows the internal structure of the positioning block and positioning disk.

[0018] Figure 5 for Figure 1 The diagram shows the connection between the straight pipe and the flange.

[0019] The following are the labels in the diagram: 1. Base, 2. Straight pipe, 3. Flange, 4. Support seat, 41. Positioning block, 42. Rubber pad, 5. Mounting seat, 51. Slide rail, 52. Positioning plate, 6. Cylinder, 61. Piston rod, 7. Fixed tooth, 71. Slide groove, 8. Clamping plate, 81. Fixed shaft. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please see Figures 1 to 5 , Figure 1 A schematic diagram of a preferred embodiment of the clamping device for welding forklift exhaust flange and straight pipe provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the positioning block. Figure 3 for Figure 1 The diagram shows the fixed tooth structure. Figure 4 for Figure 3 The diagram shows the internal structure of the positioning block and positioning disk. Figure 5 for Figure 1 The diagram shows a straight pipe and flange splicing. A clamping device for welding a forklift exhaust flange and a straight pipe includes: a base 1, one end of which is fixedly connected to a support 4, and a positioning block 41 is installed on the top of the support 4. A straight pipe 2 is fitted onto the side wall of the positioning block 41. A rubber pad 42 is annularly installed on the side wall of the positioning block 41, and the rubber pad 42 presses against the inner side wall of the straight pipe 2. The straight pipe 2 is fitted onto the surface of the positioning block 41, and the rubber pad 42 on the side wall of the positioning block 41 is pressed against the inner side wall of the straight pipe 2, so that the straight pipe 2 is fixed to one end of the positioning block 41. When splicing the flange 3 and the straight pipe 2, multiple rubber pads 42 are arranged between the straight pipes 2. The straight pipe 2 is shaken to make fine adjustments to align the center of the straight pipe 2 with the center of the flange 3, so that the straight pipe 2 can enter the interior of the flange 3 and the two can be quickly spliced.

[0022] The other end of the base 1 has a symmetrical slide rail 51. The surface of the slide rail 51 is slidably connected to the mounting base 5. The top of the mounting base 5 is equipped with a positioning plate 52 with a "T"-shaped sidewall cross-section. The interior of the positioning plate 52 is fitted with a flange 3. The top of the mounting base 5 is equipped with a cylinder 6. The sidewall of the cylinder 6 is rotatably connected to a fixing tooth 7, and one end of the fixing tooth 7 abuts against and presses against the sidewall of the flange 3. The flange 3 is secured to the surface of the positioning plate 52. The cylinder 6 at the top of the mounting base 5 is opened, and the cylinder 6 moves to push the fixing tooth 8 to rotate, causing the fixing tooth 8 to abut against and press against the sidewall of the flange 3, thus fixing the flange 3 to the surface of the positioning plate 52.

[0023] A cylinder 6 is installed on the side wall of the base 1. A piston rod 61 is slidably connected inside the cylinder 6. One end of the piston rod 61 is fixedly connected to the mounting seat 5. In order to facilitate the cylinder 6 on the surface of the base 1 to be connected to an air pump, the piston rod 61 is driven to extend and retract, thereby pushing the mounting seat 5 to move back and forth on the surface of the guide rail 51, changing the distance between the mounting seat 5 and the support seat 4.

[0024] The cylinder 6 is located on the surface of the mounting base 5, and one end of the piston rod 61 inside the cylinder 6 is fixedly connected to the surface of the mounting base 5. The side walls of the mounting base 5 are symmetrically fitted with clamping plates 8, and the side walls of the clamping plates 8 are fitted with fixing shafts 81, and the fixing shafts 81 are slidably connected to the fixing teeth 7. The side wall of the fixed tooth 7 is provided with a "V"-shaped groove 71, and the fixed shaft 81 is slidably connected inside the groove 71. When the cylinder 6 above the mounting base 5 operates, one end of the piston rod 61 inside the cylinder 6 is fixed to the side wall of the mounting base 5. When the cylinder 6 is connected to the air pump, the cylinder 6 moves back and forth along the piston rod 61. When the cylinder 6 moves away from the positioning plate 52, the cylinder 6 drives the fixed tooth 7 away from the positioning plate 52. The fixed tooth 7 drives the groove 71 to slide on the side wall of the fixed shaft 81. The groove 71 is "V"-shaped. The fixed shaft 81 presses the fixed tooth 7 as it moves, causing the fixed tooth 7 to rotate and press to fix the flange 3. When the cylinder 6 moves closer to the positioning plate 52, the rotating shaft 81 presses the fixed tooth 7, causing the fixed tooth 7 to rotate outward away from the flange 3.

[0025] The sidewall of the rubber pad 42 has an arc-shaped structure, and the height of the rubber pad 42 gradually increases along the mounting base 5 towards the support base 4. In order to facilitate the straight tube 7 to slide across the sidewall of the rubber pad 42 and abut against the positioning block 42, and as the straight tube 7 gradually approaches the positioning block 72, the squeezing force between the rubber pad 42 and the straight tube 2 increases, thus fixing the straight tube 2.

[0026] The working principle of the clamping device for welding forklift exhaust flange and straight pipe provided by this utility model is as follows: The straight pipe 2 is fitted onto the surface of the positioning block 41. The rubber pad 42 on the side wall of the positioning block 41 is squeezed by the inner side wall of the straight pipe 2, and the rubber pad 42 is tightly attached to the inner side wall of the straight pipe 2, fixing the straight pipe 2 to one end of the positioning block 41. The flange 3 is clamped onto the surface of the positioning plate 52. The cylinder 6 at the top of the mounting base 5 is connected to the air pump. The cylinder 6 moves back and forth along the piston rod 61. When the cylinder 6 moves away from the positioning plate 52, the cylinder 6 drives the fixing tooth 7 away from the positioning plate 52. The fixing tooth 7 drives the slide groove 71 to slide on the side wall of the fixing shaft 81. The slide groove 71 is "V" shaped. The fixing shaft 81 presses the fixing tooth 7 as it moves, causing the fixing tooth 7 to rotate and press to fix the flange 3. Connect the cylinder 6 on the surface of the support base 4 to the air pump, so that the piston rod 61 pushes the mounting base 5 to move along the slide rail 51, and try to bring the flange 3 and the straight pipe 2 closer to each other. When the flange 3 and the straight pipe 2 are spliced, multiple rubber pads 42 are set between the straight pipes 2. When the straight pipe 2 and the flange 3 are not aligned, shake the straight pipe 2 to make fine adjustment of the straight pipe 2 so that the center of the straight pipe 2 and the flange 3 are aligned, so that the straight pipe 2 can enter the interior of the flange 3 and the two can be quickly spliced. The straight pipe 2 enters the interior of the flange 3 and abuts and presses against the positioning plate 52. As the cylinder 6 on the surface of the support base 4 runs and presses the mounting base 5, it pushes the straight pipe 2 and the flange 3 to stick together and be fixed, which makes it easier for workers to reduce welding, and at the same time ensures that the parts do not shift or deform during assembly and welding, thus improving the welding quality.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A clamping device for welding a forklift exhaust flange to a straight pipe, characterized in that, include: A base (1) is fixedly connected to a support (4) at one end. A positioning block (41) is installed at the top of the support (4). A straight tube (2) is fitted onto the side wall of the positioning block (41). A rubber pad (42) is installed in a ring on the side wall of the positioning block (41), and the rubber pad (42) presses against the inner side wall of the straight tube (2). The other end of the base (1) is symmetrically connected to a slide rail (51), the surface of the slide rail (51) is slidably connected to a mounting seat (5), the top of the mounting seat (5) is fitted with a positioning plate (52) with a "T" shaped sidewall cross section, the inside of the positioning plate (52) is fitted with a flange (3); the top of the mounting seat (5) is fitted with a cylinder (6), the sidewall of the cylinder (6) is rotatably connected to a fixing tooth (7), and one end of the fixing tooth (7) abuts against and presses against the sidewall of the flange (3).

2. The clamping device for welding forklift exhaust flange and straight pipe according to claim 1, characterized in that, A cylinder (6) is mounted on the side wall of the base (1), and a piston rod (61) is slidably connected inside the cylinder (6). One end of the piston rod (61) is fixedly connected to the mounting base (5).

3. The clamping device for welding forklift exhaust flange and straight pipe according to claim 2, characterized in that, The cylinder (6) is located on the surface of the mounting base (5), and one end of the piston rod (61) inside the cylinder (6) is fixedly connected to the surface of the mounting base (5).

4. The clamping device for welding forklift exhaust flange and straight pipe according to claim 3, characterized in that, The side wall of the mounting base (5) is symmetrically fitted with clamping plates (8), and the side wall of the clamping plates (8) is fitted with a fixing shaft (81), and the fixing shaft (81) is slidably connected to the fixing teeth (7).

5. The clamping device for welding forklift exhaust flange and straight pipe according to claim 4, characterized in that, The side wall of the fixed tooth (7) is provided with a "V" shaped groove (71), and the fixed shaft (81) is slidably connected inside the groove (71).

6. The clamping device for welding forklift exhaust flange and straight pipe according to claim 1, characterized in that, The sidewall of the rubber pad (42) has an arc-shaped structure, and the height of the rubber pad (42) gradually increases along the mounting base (5) toward the support base (4).

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