Bus roof welding special clamping tool

Abstract

This utility model relates to the field of clamping tooling technology, specifically a clamping tooling for welding the roof of a passenger bus. The utility model includes a fixed plate, on which multiple mounting plates are fixedly connected. Each of the mounting plates is equipped with a cylinder, a pressure regulating valve, and a pressure gauge. Through the setup of an air compressor, pressure regulating valve, cylinder, and pressure gauge, compressed air generated by the air compressor is delivered to the inlet of the pressure regulating valve via a first air pipe. The operator rotates the adjusting knob of the pressure regulating valve to change the preload of the spring inside the valve, thereby adjusting the valve opening and controlling the output air pressure. The adjusted air pressure is split through a three-way pipe, one path entering the cylinder inlet and the other path entering the pressure gauge to display the current output air pressure value in real time. By observing the pressure gauge and adjusting the pressure regulating valve, the air pressure input to the cylinder can be changed, thus causing the cylinder to output different amounts of thrust.

Description

Technical Field

[0001] This utility model relates to the field of clamping tooling technology, specifically a clamping tooling for welding the roof of a passenger bus. Background Technology

[0002] The bus roof welding clamping fixture is a positioning and clamping device specifically designed for the bus roof welding process. It is used to apply stable pressure to each splicing component during the welding of the roof frame and skin, ensuring that the workpiece fits tightly and is accurately positioned during welding. This fixture can improve the consistency and efficiency of roof welding, and ensure welding quality. It is a key auxiliary equipment for achieving standardized production in bus body manufacturing.

[0003] The existing clamping fixtures used for welding the roof of buses lack cylinder pressure adjustment function, and the fixed pressure cannot be adapted to roof panels of different thicknesses and shapes. This easily leads to the damage of thin panels and the failure to press the thick panels or curved surfaces properly. In addition, the number of cylinders is insufficient and the clamping contact area is small, which cannot fully cover the roof panel area, affecting the welding quality and efficiency and making it difficult to meet the diversified production needs. Therefore, we propose a special clamping fixture for welding the roof of buses. Summary of the Invention

[0004] The purpose of this utility model is to provide a special clamping tool for welding the roof of a passenger bus, so as to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A special clamping fixture for welding the roof of a passenger bus includes a fixing plate, on which multiple mounting plates are fixedly connected. Each of the mounting plates is equipped with a cylinder, a pressure regulating valve, and a pressure gauge.

[0007] The air pressure regulating valve is fixedly connected to a first air pipe at its air inlet, and an air compressor is fixedly connected to one end of the first air pipe. The air pressure regulating valve is fixedly connected to a three-way pipe at its exhaust port. One of the outlet ends of the three-way pipe is fixedly connected to the air inlet end of the cylinder, and the other outlet end of the three-way pipe is fixedly connected to the air inlet end of the pressure gauge.

[0008] An adjusting screw is fixedly connected to the telescopic end of the cylinder. A rotating shaft is fixedly connected to the end of the adjusting screw away from the cylinder. Connecting plates are rotatably connected to both ends of the rotating shaft. A pressure plate is provided below the connecting plate. The pressing surface of the pressure plate is a corrugated pressing surface.

[0009] Preferably, the mounting plate is provided with a first strip groove in the same direction as the cylinder's transmission, and the fixing plate is provided with a second strip groove perpendicular to the first strip groove. A hexagonal head screw and a hexagonal nut are installed at the intersection of the first and second strip grooves. The hexagonal head screw and the hexagonal nut are used to install the mounting plate on the fixing plate.

[0010] Preferably, the pressure regulating valve and the pressure gauge are fixedly connected to the mounting plate.

[0011] Preferably, one side wall of the connecting plate is threaded with two cylindrical head hexagon socket screws, and the threaded ends of the two cylindrical head hexagon socket screws are threaded to the top surface of the pressure plate.

[0012] Preferably, the surface of the cylindrical head hexagonal screw is further fitted with a flat washer and a spring washer, and one side wall of the flat washer is movably fitted with the wall of the connecting plate.

[0013] Preferably, the corrugated pressing surface of the pressure plate movably abuts against the roof body, and the two ends of the roof body are respectively movably abutted against the support blocks.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model, through the setup of an air compressor, a pressure regulating valve, a cylinder, and a pressure gauge, delivers compressed air generated by the air compressor to the inlet of the pressure regulating valve via a first air pipe. The operator rotates the adjusting knob of the pressure regulating valve to change the preload of the spring inside the valve, thereby adjusting the valve opening and controlling the output air pressure. The adjusted air pressure is split through a three-way pipe, one path entering the cylinder inlet and the other path entering the pressure gauge to display the current output air pressure value in real time. By observing the pressure gauge and adjusting the pressure regulating valve, the air pressure input to the cylinder can be changed, thus enabling the cylinder to output different amounts of thrust to adapt to the pressure requirements under different working conditions and meet diverse production needs.

[0016] 2. By setting up a pressure plate, the tooling uses a pressure plate with a corrugated contact surface, which can not only meet the pressing requirements of the flat roof plate, but also adapt to the pressing requirements of the corrugated roof plate, thus enhancing the applicability of the device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a utility model Figure 1 Enlarged structural diagram at point A;

[0020] Figure 3 This is a utility model Figure 1 Enlarged structural diagram at point B.

[0021] The following labels are used in the attached diagram: 1. Fixing plate; 2. Mounting plate; 3. Cylinder; 4. Socket head cap screw; 5. Adjusting screw; 6. Roof body; 7. Support block; 8. Socket head cap screw; 9. Flat washer; 10. Spring washer; 11. Pressure plate; 12. Rotating shaft; 13. Connecting plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1 - Figure 3 As shown, the bus roof welding clamping fixture includes a fixed plate 1. Multiple mounting plates 2 are fixedly connected to the wall of the fixed plate 1. Each mounting plate 2 is equipped with a cylinder 3, a pressure regulating valve, and a pressure gauge. A first air pipe is fixedly connected to the air inlet of the pressure regulating valve, and an air compressor is fixedly connected to one end of the first air pipe. A three-way pipe is fixedly connected to the exhaust port of the pressure regulating valve. One outlet of the three-way pipe is fixedly connected to the air inlet of the cylinder 3, and the other outlet of the three-way pipe is fixedly connected to the air inlet of the pressure gauge. An adjusting screw 5 is fixedly connected to the telescopic end of the cylinder 3. The adjusting screw 5 is fixedly connected to a rotating shaft 12 at one end away from the cylinder 3. The two ends of the rotating shaft 12 are rotatably connected to a connecting plate 13. A pressure plate 11 is provided below the connecting plate 13. The pressing surface of the pressure plate 11 is a corrugated pressing surface. The mounting plate 2 is provided with a first strip groove in the same direction as the transmission of the cylinder 3. The fixing plate 1 is provided with a second strip groove perpendicular to the first strip groove. A hexagonal head screw 4 and a hexagonal nut are installed at the intersection of the first strip groove and the second strip groove. The hexagonal head screw 4 and the hexagonal nut are used to install the mounting plate 2 on the fixing plate 1.

[0024] In practice, compressed air generated by the air compressor is delivered to the air inlet of the air pressure regulating valve through the first air pipe. The operator rotates the regulating knob of the air pressure regulating valve to change the preload of the spring inside the valve and adjust the valve opening, thereby controlling the output air pressure. The regulated air pressure is split through the three-way pipe, one path enters the air inlet of cylinder 3, and the other path enters the air pressure gauge to display the current output air pressure value in real time. By observing the air pressure gauge and adjusting the air pressure regulating valve, the air pressure input to cylinder 3 can be changed, thereby enabling cylinder 3 to output different amounts of thrust to adapt to the pressure requirements under different working conditions, which facilitates use.

[0025] When the socket head cap screw 4 and the hex nut are loosened, the mounting plate 2 can slide along the second groove on the fixing plate 1, thereby positioning the mounting plate 2 and the cylinder 3. When the socket head cap screw 4 and the hex nut are loosened, the mounting plate 2 and the cylinder 3 are fixedly connected.

[0026] As a technical optimization of this utility model, two cylindrical head hexagonal screws 8 are threadedly connected to one side wall of the connecting plate 13. The threaded ends of the two cylindrical head hexagonal screws 8 are threadedly connected to the top surface of the pressure plate 11. A flat washer 9 and a spring washer 10 are also fitted on the surface of the cylindrical head hexagonal screws 8. One side wall of the flat washer 9 is movably fitted to the wall of the connecting plate 13. The corrugated pressing surface of the pressure plate 11 movably abuts against the roof body 6. The two ends of the roof body 6 are respectively movably abutted against the support blocks 7.

[0027] In practice, the pressure plate 11 used in this tooling has a corrugated contact surface, which can not only meet the pressing requirements of the roof flat plate, but also adapt to the pressing requirements of the roof corrugated plate, thus enhancing the applicability of the device.

[0028] By adjusting the length of the adjusting screw 5, the height adjustment range can be changed, making it easier to press the roof down. At the same time, the number of cylinders 3 is increased, further increasing the coverage area of ​​the roof pressing.

[0029] In use, the roof body 6 is placed on two support blocks 7. Compressed air generated by an air compressor is delivered to the air inlet of the air pressure regulating valve through the first air pipe. The operator rotates the regulating knob of the air pressure regulating valve to change the preload of the spring inside the valve and adjust the valve opening, thereby controlling the output air pressure. The adjusted air pressure is split through a three-way pipe, one path enters the air inlet of the cylinder 3, and the other path enters the air pressure gauge to display the current output air pressure value in real time. By observing the air pressure gauge and adjusting the air pressure regulating valve, the air pressure input to the cylinder 3 can be changed, and the thrust of the cylinder 3 extension end can be adjusted to a specified value, pushing the pressure plate 11 down to press the roof body 6.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A special clamping fixture for welding the roof of a passenger bus, comprising a fixing plate (1), characterized in that, Multiple mounting plates (2) are fixedly connected to the wall of the fixed plate (1), and each of the multiple mounting plates (2) is equipped with a cylinder (3), a pressure regulating valve and a pressure gauge; The air inlet of the air pressure regulating valve is fixedly connected to a first air pipe, one end of the first air pipe is fixedly connected to an air compressor, the exhaust port of the air pressure regulating valve is fixedly connected to a three-way pipe, one of the outlet ends of the three-way pipe is fixedly connected to the inlet end of the cylinder (3), and the other outlet end of the three-way pipe is fixedly connected to the inlet end of the air pressure gauge. An adjusting screw (5) is fixedly connected to the telescopic end of the cylinder (3). A rotating shaft (12) is fixedly connected to the end of the adjusting screw (5) away from the cylinder (3). A connecting plate (13) is rotatably connected to both ends of the rotating shaft (12). A pressure plate (11) is provided below the connecting plate (13). The pressing surface of the pressure plate (11) is a corrugated pressing surface.

2. The special clamping fixture for welding the roof of a passenger bus according to claim 1, characterized in that, The mounting plate (2) is provided with a first strip groove in the same direction as the transmission of the cylinder (3). The fixing plate (1) is provided with a second strip groove perpendicular to the first strip groove. A hexagonal head screw (4) and a hexagonal nut are installed at the intersection of the first strip groove and the second strip groove. The hexagonal head screw (4) and the hexagonal nut are used to install the mounting plate (2) on the fixing plate (1).

3. The special clamping fixture for welding the roof of a passenger bus according to claim 2, characterized in that, The pressure regulating valve and the pressure gauge are fixedly connected to the mounting plate (2).

4. The special clamping fixture for welding the roof of a passenger bus according to claim 1, characterized in that, The side wall of the connecting plate (13) is threaded with two cylindrical head hexagonal screws (8), and the threaded ends of the two cylindrical head hexagonal screws (8) are threaded to the top surface of the pressure plate (11).

5. The special clamping fixture for welding the roof of a passenger bus according to claim 4, characterized in that, The surface of the cylindrical head hexagonal screw (8) is also fitted with a flat washer (9) and a spring washer (10), and one side wall of the flat washer (9) is in movable contact with the wall of the connecting plate (13).

6. The special clamping fixture for welding the roof of a passenger bus according to claim 5, characterized in that, The corrugated pressing surface of the pressure plate (11) movably abuts against the roof body (6), and the two ends of the roof body (6) movably abut against the support blocks (7).

Images