A clamping device for welding the side wall side plate and diagonal brace of railway freight car

Abstract

This utility model discloses a clamping device for welding the side wall panel and diagonal brace of a railway freight car, relating to the field of railway freight car manufacturing. It includes: a connecting rod, spanning across the railway freight car and arranged along its width; a moving mechanism at each end of the connecting rod, the moving mechanism comprising multiple moving rollers that engage with the upper side beam of the railway freight car; two pairs of slide rails, each pair vertically positioned at both ends of the connecting rod, with two slide rails in each pair positioned on the inner and outer sides of the side wall of the railway freight car; a lifting mechanism slidably mounted on the slide rails, the output end of which extends and retracts horizontally, engaging with the diagonal brace and the side wall panel; this clamping device ensures that the welded assembly meets the dimensional requirements of the railway freight car, reduces the number of personnel involved in the welding process, and improves welding efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of railway freight car manufacturing, and more specifically, relates to a clamping device for welding the side plate of the upper side wall of a railway freight car to the diagonal brace. Background Technology

[0002] In the welding and installation process of the sidewalls and diagonal braces of the steel structure of the car body, existing technologies suffer from high manpower requirements, low welding precision, and low efficiency. Current welding and installation require multiple personnel, increasing labor costs and limiting operational flexibility. Furthermore, manual labor leads to inconsistent welding precision, affecting the overall structural safety and durability. The cumbersome collaborative process also prolongs the construction period and increases safety hazards. Solving these problems has faced difficulties such as resistance to technological improvements, cost issues, a lack of process standardization, and equipment maintenance challenges. Under these circumstances, the stability of assembly precision is affected by various factors, leading to frequent assembly errors. In severe cases, this can compromise the safety of railway freight cars during collisions and affect the operational efficiency of open wagons. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a clamping device for welding the side wall panel and diagonal brace of a railway freight car. This clamping device uses a moving mechanism to move itself to the welding position, and then adjusts the slide rails up and down to align the lifting mechanism with the welding position of the diagonal brace. Finally, the lifting mechanism presses the diagonal brace and the side wall panel into place from both the inner and outer sides of the side wall. This ensures that the welded assembly meets the size requirements of the railway freight car, reduces the number of personnel involved in the welding process, and improves welding efficiency.

[0004] To achieve the above objectives, this utility model provides a clamping device for welding the side plate of the upper wall of a railway freight car to a diagonal brace, comprising:

[0005] A connecting rod is installed across the railway freight car, the connecting rod being arranged along the width direction of the railway freight car, and a moving mechanism is provided at each end of the connecting rod, the moving mechanism including multiple moving rollers, the moving rollers being in contact with the upper side beam of the railway freight car;

[0006] Two pairs of slide rails are provided, each pair of slide rails is set at both ends of the connecting rod in the vertical direction, and two of the slide rails in each pair are set on the inner and outer sides of the side wall of the railway freight car. A lifting mechanism is slidably installed on the slide rails. The output end of the lifting mechanism is extended and retracted in the horizontal direction. The output end of the lifting mechanism is in contact with the diagonal brace and the side plate of the side wall.

[0007] Preferably, the moving mechanism includes:

[0008] A horizontal support plate, the top surface of which is connected to the end of the connecting rod;

[0009] Two first rotating shafts are respectively set on the inner and outer sides of the side wall of the railway freight car. The top of the first rotating shaft is slidably set with the horizontal support plate, and the bottom of the first rotating shaft is rotatably set with a first movable roller. The first movable roller rolls against the side of the upper side beam of the railway freight car.

[0010] Multiple fixed pulley seats are arranged on the side of the horizontal support plate facing the upper beam of the railway freight car. A second rotating shaft is rotatably arranged on the fixed pulley seat. A second movable roller is sleeved on the second rotating shaft. The second movable roller rolls and fits against the top surface of the upper beam of the railway freight car.

[0011] A bidirectional synchronous telescopic cylinder is disposed between the two first rotating shafts, and the output end of the bidirectional synchronous telescopic cylinder is connected to the first rotating shaft.

[0012] Preferably, the middle part of the horizontal support plate is connected to the connecting rod, and the fixed pulley seats are evenly distributed on the horizontal support plate.

[0013] Preferably, the axial length of the second movable roller is set to correspond to the width of the upper side beam of the railway freight car.

[0014] Preferably, a pair of clamping frames are provided at each end of the connecting rod. The clamping frames are right-angled trapezoidal structures, with the inclined surfaces of the clamping frames facing the side wall of the railway freight car. The bottom edge of the clamping frames is connected to the connecting rod, and each pair of slide rails is provided in one-to-one correspondence with each pair of clamping frames.

[0015] Preferably, the slide rail is located on the side of the clamping frame away from the side wall of the railway freight car.

[0016] Preferably, the lifting mechanism is connected to the slider of the slide rail. The lifting mechanism includes a telescopic cylinder and a pressure plate. The output end of the telescopic cylinder is connected to one side of the pressure plate, and the other side of the pressure plate abuts against the diagonal brace and the side wall plate.

[0017] Preferably, the connecting rod is bolted to the horizontal support plate.

[0018] Preferably, the clamping frame and the moving mechanism are bolted together.

[0019] Preferably, the telescopic cylinder is a hydraulic cylinder.

[0020] This utility model provides a clamping device for welding the side plate of the upper wall of a railway freight car to the diagonal brace, and its advantages are as follows:

[0021] 1. This clamping device can firmly press the diagonal brace onto the side wall plate without human intervention, thereby reducing labor costs. After the lifting mechanism is adjusted to the appropriate height, the component can be manually placed on the side wall plate, and the diagonal brace can be placed in the specified position. Finally, the pressure plate is pressed onto the diagonal brace and the side wall plate by the telescopic cylinder to ensure that the relative positions of the two do not change. This can improve the assembly accuracy of the side wall plate and the diagonal brace in the vehicle body structure. During the welding process, the telescopic cylinder is always in the ejected state, which can improve the welding accuracy between the side wall plate and the diagonal brace.

[0022] 2. During the welding process, the clamping device is moved to the position where the diagonal brace needs to be welded via a moving mechanism. Then, the lifting mechanism is moved to the required height, and the diagonal brace is manually placed on the side wall plate at the position required by the process. The workpiece to be welded is then lifted by a telescopic cylinder and fixed by a pressure plate. Then, the welding operation can be carried out. The entire welding process requires minimal human intervention, with most of the process relying on mechanical transmission. This can improve the overall efficiency of welding production. Using this clamping device during the welding clamping process can also further improve the automation level of the workshop.

[0023] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0024] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0025] Figure 1 A side view schematic diagram of a clamping device structure for welding the side plate of the upper wall of a railway freight car to a diagonal brace, according to an embodiment of the present invention, is shown.

[0026] Figure 2 A frontal schematic diagram of a clamping device structure for welding the side plate of the upper wall of a railway freight car to a diagonal brace, according to an embodiment of the present invention, is shown.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Connecting rod; 2. Moving mechanism; 3. Roller; 4. Upper side beam; 5. Slide rail; 6. Lifting mechanism; 7. Diagonal brace; 8. Clamping frame; 9. Side wall and side plate; 10. Telescopic cylinder. Detailed Implementation

[0029] Preferred embodiments of the present invention will now be described in more detail. While preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0030] like Figures 1 to 2 As shown, this utility model provides a clamping device for welding the side panel 9 of the upper wall of a railway freight car to the diagonal brace 7, comprising:

[0031] A connecting rod 1 is installed across the railway freight car. The connecting rod 1 is installed along the width direction of the railway freight car. A moving mechanism 2 is installed at both ends of the connecting rod 1. The moving mechanism 2 includes multiple moving rollers 3. The moving rollers 3 are in contact with the upper side beam 4 of the railway freight car.

[0032] Two pairs of slide rails 5 are respectively set at both ends of the connecting rod 1 in the vertical direction. Two of the slide rails 5 in each pair are respectively set on the inner and outer sides of the side wall of the railway freight car. A lifting mechanism 6 is slidably set on the slide rails 5. The output end of the lifting mechanism 6 is extended and retracted in the horizontal direction. The output end of the lifting mechanism 6 is in contact with the diagonal brace 7 and the side plate of the side wall 9.

[0033] Specifically, the clamping device includes a moving mechanism 2 and a lifting mechanism 6. The moving mechanism 2 is located at both ends of the connecting rod 1, allowing the entire device to move along the length of the railway freight car. When the clamping device needs to move, the moving rollers 3 roll on the upper beam 4, moving the clamping device to the position where the welded diagonal brace 7 needs to be placed. The moving device also includes a power element, which is commercially available. The power element provides power to the moving rollers 3, enabling the entire clamping device to move. This is a standard feature in the field of mechanical transmission. The two ends of the connecting rod 1... In addition to the moving mechanism 2, a slide rail 5 is also provided. A lifting mechanism 6 that can move up and down is provided on the slide rail 5. When the clamping device moves into position, the lifting mechanism 6 can move up and down under the drive of the slide rail 5. When the lifting mechanism 6 reaches the corresponding position of the diagonal brace 7, the slide rail 5 stops running. Finally, the output end of the lifting mechanism 6 extends horizontally towards the side wall. The output end of the lifting mechanism 6 located inside the railway freight car abuts against the side wall plate 9, and the output end of the lifting mechanism 6 located outside the railway freight car abuts against the diagonal brace 7. In this way, the diagonal brace 7 can be firmly pressed against the side wall plate 9, and the final welding operation can be carried out.

[0034] like Figure 1 As shown, the moving mechanism 2 includes:

[0035] A horizontal support plate, the top surface of which is connected to the end of connecting rod 1;

[0036] Two first rotating shafts are respectively set on the inner and outer sides of the side wall of the railway freight car. The top of the first rotating shaft is slidably set with the horizontal support plate, and the bottom of the first rotating shaft is rotatably set with a first movable roller. The first movable roller rolls and fits against the side of the upper side beam 4 of the railway freight car.

[0037] Multiple fixed pulley seats are set on the side of the horizontal support plate facing the upper beam 4 of the railway freight car. A second rotating shaft is rotatably set on the fixed pulley seat, and a second movable roller is sleeved on the second rotating shaft. The second movable roller rolls and fits against the top surface of the upper beam 4 of the railway freight car.

[0038] A bidirectional synchronous telescopic cylinder is positioned between two first rotating shafts, and the output end of the bidirectional synchronous telescopic cylinder is connected to the first rotating shaft.

[0039] Specifically, the moving mechanism 2 is connected to the end of the connecting rod 1 via a horizontal support plate. The horizontal support plate has first rotating shafts on both the inner and outer sides of the side wall. The first rotating shafts roll against the inner and outer sides of the upper side beam 4 via first moving rollers. In addition, multiple fixed pulley seats are set at positions corresponding to the horizontal support plate and the upper side beam 4. The second moving roller on each fixed pulley seat rolls against the top surface of the upper side beam 4. Thus, when the moving mechanism 2 drives the clamping device to move on the railway freight car, the moving rollers 3 on both the side and top surfaces roll against the upper side beam 4. The second rotating shaft is connected to a power element, which outputs rotational power to drive the second moving rollers to rotate. Thus, the second moving rollers are the driving wheels, and the first moving rollers are the driven wheels. The gap between the first moving rollers can be adjusted by a bidirectional synchronous telescopic cylinder, so that the first moving rollers can adapt to upper side beams 4 of different widths. In addition, the second movable roller can also be used to adjust the protrusion of the upper side beam 4. The clamping device uses its own weight to press the protrusion of the upper side beam 4 flat by using the second movable roller.

[0040] Preferably, the middle part of the horizontal support plate is connected to the connecting rod 1, and the fixed pulley seats are evenly distributed on the horizontal support plate.

[0041] Preferably, the axial length of the second movable roller is set to correspond to the width of the upper side beam 4 of the railway freight car.

[0042] Specifically, when the clamping device is installed on the side wall of the railway freight car, the second moving roller is aligned with the upper side beam 4 of the railway freight car. In this way, the first moving roller, driven by the bidirectional synchronous telescopic cylinder, makes the upper side beam 4 evenly stressed on both sides, and the moving mechanism 2 will not deviate when the upper side beam 4 moves. The width of the second moving roller corresponds to the width of the top surface of the upper side beam 4, so that the flatness of the top surface of the upper side beam 4 can be improved during each movement.

[0043] like Figure 2 As shown, a pair of clamping frames 8 are respectively provided at both ends of the connecting rod 1. The clamping frame 8 is a right trapezoidal structure. The inclined surface of the clamping frame 8 faces the side wall of the railway freight car. The bottom edge of the clamping frame 8 is connected to the connecting rod 1. Each pair of slide rails 5 is provided in correspondence with each pair of clamping frames 8.

[0044] Preferably, the slide rail 5 is located on the side of the clamping frame 8 away from the side wall of the railway freight car.

[0045] Preferably, the lifting mechanism 6 is connected to the slider of the slide rail 5. The lifting mechanism 6 includes a telescopic cylinder 10 and a pressure plate. The output end of the telescopic cylinder 10 is connected to one side of the pressure plate, and the other side of the pressure plate abuts against the diagonal brace 7 and the side wall plate 9.

[0046] Specifically, in addition to the moving mechanism 2, the end of the connecting rod 1 is also equipped with a pair of clamping frames 8. The two clamping frames 8 are respectively set on the inner and outer sides of the side wall. A slide rail 5 is also set on the clamping frame 8. The lifting mechanism 6 is connected to the slider in the slide rail 5. When the slide rail 5 is driven, the height position of the lifting mechanism 6 can be adjusted up and down. After the adjustment is completed, the lifting mechanisms 6 on the inner and outer sides of the side wall are at the same height. After the diagonal brace 7 is placed in the welding position, the lifting mechanisms 6 on both sides can extend and press the outer diagonal brace 7 and the inner side wall side plate 9 through the pressure plate to fix the diagonal brace 7 and the side wall side plate 9, which facilitates the welding operation and improves the welding positioning accuracy. In addition, the up and down movement of the slider in the slide rail 5 is powered by a power element. The type and installation position of the power element and the connection method between the power element and the slide rail 5 are all conventional settings in this field.

[0047] Preferably, the connecting rod 1 is bolted to the horizontal support plate.

[0048] Preferably, the clamping frame 8 and the moving mechanism 2 are bolted together.

[0049] Preferably, the telescopic cylinder 10 is a hydraulic cylinder.

[0050] Specifically, the clamping device is summarized as follows: the connecting rod 1 and the horizontal support plate are connected in a conventional way, which facilitates the disassembly and replacement of the clamping device; the clamping frame 8 and the moving mechanism 2 are connected by bolts. In this way, in addition to the connection with the end of the connecting rod 1, the clamping frame 8 is also connected to the horizontal support plate in the moving mechanism 2. This can ensure the installation accuracy of the slide rail 5. When the lifting mechanism 6 moves into place on the slide rail 5, the pressure plate of the lifting mechanism 6 can be fully pressed against the diagonal brace 7 and the side wall plate 9. The lifting mechanism 6 uses a hydraulic cylinder as the telescopic cylinder 10 to drive the pressure plate, which can ensure that the clamping force on the diagonal brace 7 and the side wall plate 9 reaches the specified value, and ensure the welding accuracy of the workpiece during the welding process.

[0051] In summary, before welding, the clamping device is hoisted by a crane and connecting rod 1 and placed on two upper side beams 4. The second moving roller is in contact with the top surface of the upper side beam 4. The first moving rollers on both sides are closed by the drive of the bidirectional synchronous telescopic cylinder. The bidirectional synchronous telescopic cylinder can be manually operated to ensure that the first moving roller is in contact with the side of the upper side beam 4. This achieves the relative positioning of the moving mechanism 2 and the railway freight car. Then, the moving mechanism 2 and the power element drive the entire clamping device to move until it is in place. Then, the diagonal brace 7 is manually placed on the welding position of the side wall side plate 9. The pressure plate in the lifting mechanism 6 is aligned with the middle of the diagonal brace 7 by the drive slide rail 5. The slide rail 5 can be manually operated. After the slide rail 5 is adjusted into place, the hydraulic cylinder is manually driven to press the pressure plate against the diagonal brace 7 and the side wall side plate 9, and the welding operation can be carried out. After the entire welding is completed, the clamping device can be moved to the next position where the diagonal brace 7 needs to be welded by the moving mechanism 2. Repeat the above steps until the welding work of the remaining diagonal brace 7 and the side wall plate 9 is completed. When the end is finished, the gap between the two first drive shafts is increased and the clamping device can be moved away by a crane.

[0052] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A clamping device for welding the side panel of the upper wall of a railway freight car to a diagonal brace, characterized in that, include: A connecting rod is installed across the railway freight car, the connecting rod being arranged along the width direction of the railway freight car, and a moving mechanism is provided at each end of the connecting rod, the moving mechanism including multiple moving rollers, the moving rollers being in contact with the upper side beam of the railway freight car; Two pairs of slide rails are provided, each pair of slide rails is set at both ends of the connecting rod in the vertical direction, and two of the slide rails in each pair are set on the inner and outer sides of the side wall of the railway freight car. A lifting mechanism is slidably installed on the slide rails. The output end of the lifting mechanism is extended and retracted in the horizontal direction. The output end of the lifting mechanism is in contact with the diagonal brace and the side plate of the side wall.

2. The clamping device for welding the side panel of the upper wall of a railway freight car to the diagonal brace according to claim 1, characterized in that, The moving mechanism includes: A horizontal support plate, the top surface of which is connected to the end of the connecting rod; Two first rotating shafts are respectively set on the inner and outer sides of the side wall of the railway freight car. The top of the first rotating shaft is slidably set with the horizontal support plate, and the bottom of the first rotating shaft is rotatably set with a first movable roller. The first movable roller rolls against the side of the upper side beam of the railway freight car. Multiple fixed pulley seats are provided on the side of the horizontal support plate facing the upper beam of the railway freight car. A second rotating shaft is rotatably provided on the fixed pulley seat. A second movable roller is sleeved on the second rotating shaft. The second movable roller rolls and fits against the top surface of the upper beam of the railway freight car. A bidirectional synchronous telescopic cylinder is disposed between the two first rotating shafts, and the output end of the bidirectional synchronous telescopic cylinder is connected to the first rotating shaft.

3. The clamping device for welding the side plate of the upper wall of a railway freight car to the diagonal brace according to claim 2, characterized in that, The middle part of the horizontal support plate is connected to the connecting rod, and the fixed pulley seats are evenly distributed on the horizontal support plate.

4. The clamping device for welding the side panel of the upper wall of a railway freight car to the diagonal brace according to claim 2, characterized in that, The axial length of the second movable roller is set to correspond to the width of the upper side beam of the railway freight car.

5. The clamping device for welding the side panel of the upper wall of a railway freight car to the diagonal brace according to claim 1, characterized in that, A pair of clamping frames are provided at each end of the connecting rod. The clamping frames are right-angled trapezoidal structures, with the inclined surfaces of the clamping frames facing the side wall of the railway freight car. The bottom edge of the clamping frames is connected to the connecting rod. Each pair of slide rails is provided in one-to-one correspondence with each pair of clamping frames.

6. The clamping device for welding the side panel of the upper wall of a railway freight car to the diagonal brace according to claim 5, characterized in that, The slide rail is located on the side of the clamping frame away from the side wall of the railway freight car.

7. The clamping device for welding the side walls and the diagonal braces of the upper side walls of railway wagons according to claim 6, characterized in that, The lifting mechanism is connected to the slider of the slide rail. The lifting mechanism includes a telescopic cylinder and a pressure plate. The output end of the telescopic cylinder is connected to one side of the pressure plate, and the other side of the pressure plate abuts against the diagonal brace and the side wall plate.

8. The clamping device for welding the side plate of the upper wall of a railway freight car to the diagonal brace according to claim 2, characterized in that, The connecting rod is bolted to the horizontal support plate.

9. The clamping device for welding the side walls and the diagonal braces of the upper side walls of railway freight cars according to claim 5, characterized in that, The clamping frame and the moving mechanism are bolted together.

10. The clamping device for welding the side panel of the upper wall of a railway freight car to the diagonal brace according to claim 7, characterized in that, The telescopic cylinder is a hydraulic cylinder.

Images