Heating device for leveling side wall skin of locomotive

Abstract

The utility model discloses a heating device for leveling a skin of a side wall of a locomotive, which is characterized in that the heating device comprises a moving platform (1), lockable rollers (2) are connected to the bottom of the moving platform (1), a supporting stand column (3) is arranged on the moving platform (1), a lead screw (4) is rotatably supported in the supporting stand column (3), and the lead screw (4) is arranged on the moving platform (1). A motor (5) connected with the lead screw (4) is arranged on the top of the supporting stand column (3), a Z-axis platform (6) is further connected to the supporting stand column (3) in a sliding mode, and a nut block connected with the lead screw (4) is arranged in the Z-axis platform (6).

Description

Technical Field

[0001] The utility model relates to the field of vehicle manufacturing, in particular to a heating device for leveling the skin of a locomotive side wall. Background Art

[0002] During the production and assembly of locomotives, after the side wall skin of the locomotive vehicle is welded to the frame of the vehicle body, it will produce unstable convex and concave deformation due to welding stress. The degree of deformation often exceeds the requirements of the technical design standards, so the skin needs to be flattened.

[0003] Traditionally, there are a variety of process methods that can achieve skin flattening operations. Among them, the method that is easier to control and suitable for large-area flattening operations is the point heating flattening method. This method uses the principle of thermal expansion and contraction. Through rapid point heating and rapid cooling, the metal in each point area shrinks toward the center of the point, and multiple points arranged over a large area shrink together, making the steel plate appear to be tightened and flattened.

[0004] At present, when using the point heating and leveling method for leveling, the operation method is relatively primitive. Most of them are to heat the side wall skin point by point and line by line with a handheld baking gun, and the back side also needs to be manually sprayed with water to cool it in time following the movement of the heating red spot. Due to the instability of manual operation, the randomness of many influencing factors is amplified, resulting in unstable leveling effect. On the other hand, due to the limitations of factors such as heater performance and operating space, long-term, large-area, and continuous manual scanning production operations make workers very easy to get tired, and production efficiency and production safety are low.

[0005] Therefore, a method or device capable of solving the above problems is now needed. Summary of the invention

[0006] The utility model aims to solve the above-mentioned deficiencies in the prior art and provides a device which has a simple structure, ingenious design, reasonable layout and can quickly and conveniently realize the heating and leveling operation of the locomotive side wall skin.

[0007] The technical solution of the utility model is: a heating device for flattening the skin of the side wall of a locomotive, characterized in that: the device comprises a mobile platform 1, a lockable roller 2 is connected to the bottom of the mobile platform 1, a support column 3 is arranged on the mobile platform 1, a lead screw 4 is rotatably supported in the support column 3, a motor 5 connected to the lead screw 4 is arranged on the top of the support column 3, a Z-axis platform 6 is also slidably connected to the support column 3, a nut block connected to the lead screw 4 is arranged in the Z-axis platform 6,

[0008] A Y-axis cylinder 7 is respectively arranged on both sides of the Z-axis platform 6, and the working ends of the two Y-axis cylinders 7 are simultaneously connected to the back side of the X-axis bracket 8, and positioning frames (9) are respectively arranged at both ends of the front of the X-axis bracket 8, and a distance sensor 10 is arranged at the end of the positioning frame 9. At the same time, a rodless cylinder 11 is also arranged on the front of the X-axis bracket 8, and a spray gun seat is arranged on the slider of the rodless cylinder 11, and a heating spray gun 12 is arranged on the spray gun seat. The Y-axis cylinders 7 are distributed along the Y-axis direction, and the spray gun seat can reciprocate along the X-axis direction.

[0009] The device also includes a water tank 13, the bottom of which is also connected to a lockable roller 2, a water pump 14 is arranged in the water tank 13, a cooling spray gun 15 is arranged at the end of the outlet pipeline of the water pump 14, and the heating spray gun 12 is connected to a heating source device 20 arranged on the mobile platform 1 through a pipeline.

[0010] The positioning frame 9 includes a support rod 16 directly fixedly connected to the X-axis bracket 8, and a sensor bracket 17 is movably sleeved on the support rod 16. The sensor bracket 17 can be fixed to the support rod 16 by a fastening nut 18. The fastening nut 18 is threadedly connected to the support rod 16, and the distance sensor 10 is arranged on the sensor bracket 17.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] The heating device for leveling the locomotive side wall skin of this structural form has a simple structure, ingenious design and reasonable layout. It is designed to solve the problems existing in the traditional manual heating process of the locomotive side wall skin by using a special structure. It uses a heating spray gun to heat a certain point on the surface of the workpiece, and the heating spray gun is arranged on a driving mechanism that can move in the three-axis directions of X, Y and Z. After the device as a whole determines the relative position with the side wall, the driving device can be used to drive the heating spray gun to move within a certain range. During the movement, the heating spray gun works intermittently to realize dot matrix heating of the workpiece. It can semi-automatically realize the heating operation in the process of leveling the locomotive side wall skin, which can not only save manpower labor, but also ensure the leveling effect and improve work efficiency. At the same time, its manufacturing process is simple and the manufacturing cost is low. Therefore, it can be said that it has many advantages and is particularly suitable for promotion and application in this field. Its market prospect is very broad. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model.

[0014] Figure 2 It is the front view of the embodiment of the utility model.

[0015] Figure 3It is a side view of an embodiment of the utility model.

[0016] Figure 4 It is a partial enlarged view of the positioning frame part in the embodiment of the utility model. DETAILED DESCRIPTION

[0017] The specific implementation of the present utility model will be described below in conjunction with the accompanying drawings. Figures 1 to 4 As shown: A heating device for flattening the skin of a locomotive side wall, comprising a mobile platform 1, a lockable roller 2 is connected to the bottom of the mobile platform 1, a support column 3 is arranged on the mobile platform 1, a lead screw 4 is rotatably supported in the support column 3, a motor 5 connected to the lead screw 4 is arranged on the top of the support column 3, a Z-axis platform 6 is also slidably connected to the support column 3, a nut block connected to the lead screw 4 is arranged in the Z-axis platform 6,

[0018] A Y-axis cylinder 7 is respectively arranged on both sides of the Z-axis platform 6, and the working ends of the two Y-axis cylinders 7 are simultaneously connected to the back side of the X-axis bracket 8, and positioning frames (9) are respectively arranged at both ends of the front of the X-axis bracket 8, and a distance sensor 10 is arranged at the end of the positioning frame 9. At the same time, a rodless cylinder 11 is also arranged on the front of the X-axis bracket 8, and a spray gun seat is arranged on the slider of the rodless cylinder 11, and a heating spray gun 12 is arranged on the spray gun seat. The Y-axis cylinders 7 are distributed along the Y-axis direction, and the spray gun seat can reciprocate along the X-axis direction.

[0019] The device also includes a water tank 13, the bottom of which is also connected to a lockable roller 2, a water pump 14 is arranged in the water tank 13, a cooling spray gun 15 is arranged at the end of the outlet pipeline of the water pump 14, and the heating spray gun 12 is connected to a heating source device 20 arranged on the mobile platform 1 through a pipeline.

[0020] The positioning frame 9 includes a support rod 16 directly fixedly connected to the X-axis bracket 8, and a sensor bracket 17 is movably sleeved on the support rod 16. The sensor bracket 17 can be fixed to the support rod 16 by a fastening nut 18. The fastening nut 18 is threadedly connected to the support rod 16, and the distance sensor 10 is arranged on the sensor bracket 17.

[0021] The working process of the heating device for leveling the side wall skin of a locomotive according to the embodiment of the utility model is as follows: the side wall skin to be leveled (hereinafter referred to as the workpiece 19) is supported and positioned in advance by a hanger or other mechanism, and the operator pushes the mobile platform 1 to move near the side wall skin, and allows the two distance sensors 10 to approach the surface of the workpiece 19. When both distance sensors 10 are triggered, it means that the distance between the nozzle of the heating spray gun 12 and the workpiece 19 reaches the working distance, and the adjustment of the mobile platform 1 is stopped and all the rollers 2 are locked;

[0022] Push the water tank 13 to the bottom of the workpiece 19, and lock all the rollers 2;

[0023] In the initial state, the Z-axis platform 6 in the device is located at the lowest end, and the heating spray gun 12 thereon is located at the leftmost end of the X-axis bracket 8. After receiving the instruction to start working, the control system will start the heating source device 20, and the heating spray gun 12 will start working to heat a certain point on the front of the workpiece 19. At the same time, the operator holds the cooling spray gun 15, follows and sprays at the point on the back of the workpiece 19, so that the point that has been heated to a temperature is quickly cooled to achieve shrinkage.

[0024] After the heating work of the first point reaches the predetermined time, the heating source device 20 automatically stops working, and the rodless cylinder 11 drives the heating spray gun 12 to move a unit distance to the right. After stopping, the heating source device 20 works again, and the heating spray gun 12 heats the second point on the front of the workpiece 19, and this is repeated until the heating spray gun 12 moves to the rightmost end of the X-axis bracket 8.

[0025] On the lowest row, after the heating work of all points is completed, the control system controls the motor 5 to work, driving the Z-axis platform 6 to move upward by a unit distance, and then stops, and the heating spray gun 12 moves from the rightmost end to the leftmost end as described above, to achieve the heating work of the second row.

[0026] This process is repeated until a rectangular area on the workpiece 19 is heated. The height of the rectangular area is the movement range of the Z-axis platform 6, and the width is the movement range of the heating spray gun 12. During the above process, the staff always holds the cooling spray gun 15 to cooperate with the heating spray gun 12 to achieve rapid cooling and shrinkage point by point to achieve the purpose of flattening.

[0027] The cooling water sprayed on the workpiece 19 flows directly downward along the workpiece 19 and finally falls into the water tank 13 , and the water pump 14 provides a continuous supply of cooling water to the cooling spray gun 15 , thereby realizing the circulation of cooling water.

Claims

1. A heating device for flattening the side wall skin of a locomotive, characterized in that: The device comprises a mobile platform (1), the bottom of the mobile platform (1) is connected to a lockable roller (2), a support column (3) is arranged on the mobile platform (1), a lead screw (4) is rotatably supported in the support column (3), a motor (5) connected to the lead screw (4) is arranged on the top of the support column (3), a Z-axis platform (6) is also slidably connected to the support column (3), and a nut block connected to the lead screw (4) is arranged in the Z-axis platform (6). A Y-axis cylinder (7) is respectively arranged on both sides of the Z-axis platform (6), and the working ends of the two Y-axis cylinders (7) are simultaneously connected to the back side of the X-axis bracket (8), and positioning frames (9) are respectively arranged at both ends of the front side of the X-axis bracket (8), and a distance sensor (10) is arranged at the end of the positioning frame (9). At the same time, a rodless cylinder (11) is also arranged on the front side of the X-axis bracket (8), and a spray gun seat is arranged on the slider of the rodless cylinder (11), and a heating spray gun (12) is arranged on the spray gun seat. The Y-axis cylinders (7) are distributed along the Y-axis direction, and the spray gun seat can reciprocate along the X-axis direction. The device further comprises a water tank (13), the bottom of which is also connected to a lockable roller (2), a water pump (14) is arranged in the water tank (13), a cooling spray gun (15) is arranged at the end of the outlet pipeline of the water pump (14), and the heating spray gun (12) is connected to a heating source device (20) arranged on the mobile platform (1) through a pipeline.

2. The heating device for flattening the locomotive side wall skin according to claim 1, characterized in that: The positioning frame (9) comprises a support rod (16) directly fixedly connected to the X-axis support (8); a sensor support (17) is movably sleeved on the support rod (16); the sensor support (17) can be fixed to the support rod (16) via a fastening nut (18); the fastening nut (18) is threadedly connected to the support rod (16); and the distance sensor (10) is arranged on the sensor support (17).

Images