Hot bending device of steel pipe for ship machining

Abstract

The utility model discloses a hot bending device of a steel pipe for ship processing, which belongs to the technical field of steel pipe hot bending processing and comprises a workbench, a support frame fixedly assembled at the bottom of the workbench, a pipe bending mechanism assembled between the workbench and the support frame, and a lifting component assembled between the workbench and the support frame and in transmission connection with the pipe bending mechanism. A heating mechanism is assembled on the top of the workbench, and a cooling assembly is fixedly assembled on the top of the workbench. Compared with traditional simple bending equipment, the cooling assembly is arranged in the device, after the steel pipe is subjected to hot bending, the bent position of the steel pipe can be cooled through the cooling assembly, overall shaping of the steel pipe after bending is accelerated, and therefore deformation generated by the steel pipe in the subsequent steel pipe taking and moving process is reduced, and the production efficiency is improved. And the overall product quality after the steel pipe is bent is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe bending processing, in particular to a hot bending device for steel pipes used for ship processing. Background Art

[0002] During the shipbuilding process, a large number of pipelines need to be laid inside the cabin, and some of them need to be bent 90 degrees according to specific needs. At present, the hot bending equipment used for bending steel pipes usually heats the bending part of the steel pipe, and then uses simple equipment to perform the bending operation. After the bent steel pipe is taken out of the equipment, it needs to be placed in the workshop for natural cooling. However, during this bending operation, the cooling speed is slow due to the use of natural wind to cool the steel pipe. The newly bent steel pipe may be deformed due to extrusion during the movement and placement process, which will affect the quality of the steel pipe after bending. To this end, we propose a hot bending device for steel pipes for ship processing. Utility Model Content

[0003] The utility model aims to provide a hot bending device for steel pipes used for ship processing, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hot bending device for steel pipes for ship processing, comprising a workbench, a support frame is fixedly installed at the bottom of the workbench, a pipe bending mechanism is installed between the workbench and the support frame, a lifting component connected to the pipe bending mechanism is installed between the workbench and the support frame, a heating mechanism is installed on the top of the workbench, and a cooling component is fixedly installed on the top of the workbench;

[0005] The pipe bending mechanism comprises a fixed frame and an action frame, the fixed frame and the action frame are symmetrically arranged with the heating mechanism as the center, a driving motor is fixedly mounted on the bottom of the support frame, and a rotating plate is fixedly connected to the output end of the driving motor;

[0006] The lifting assembly includes a first hydraulic telescopic cylinder and a second hydraulic telescopic cylinder, the output end of the first hydraulic telescopic cylinder is fixedly connected to the bottom of the fixed frame, the first hydraulic telescopic cylinder is fixedly assembled in the supporting frame, the output end of the second hydraulic telescopic cylinder is fixedly connected to the bottom of the action frame, and the second hydraulic telescopic cylinder is fixedly assembled on the surface of the rotating plate.

[0007] Preferably, the heating mechanism includes a telescopic cylinder, the output end of the telescopic cylinder is fixedly connected to a movable frame, the side wall of the movable frame is fixedly connected to a heating frame, the upper and lower side walls of the heating frame are respectively fixedly equipped with a first heater, the top of the workbench is fixedly equipped with a heating shaft, and the inner cavity of the heating shaft is embedded with a second heater.

[0008] Preferably, the cooling assembly includes a support shaft fixedly assembled at the four corners of the top of the workbench. A mounting plate is fixedly connected to the top of the support shaft, a cooling frame is fixedly connected to the bottom of the mounting plate, a mounting groove is formed in the side wall of the cooling frame, and a blower is embedded in the mounting groove.

[0009] Preferably, a flow guide plate is fixedly connected to the side wall of the cooling frame.

[0010] Preferably, the fixing frame includes a first frame body and a second frame body. Clamping grooves are formed in the opposite side walls of the first frame body and the second frame body. A connecting rod penetrating the first frame body is fixedly connected to the side wall of the second frame body. A limiting plate is fixedly connected to the end of the connecting rod. A limiting shaft penetrating the limiting plate is fixedly connected to the side wall of the first frame body, and a spring is sleeved on the outer side wall of the limiting shaft.

[0011] Preferably, the action frame includes a connecting shaft. An auxiliary support plate is fixedly connected to the top of the connecting shaft, and an action shaft is fixedly connected to the top of the auxiliary support plate.

[0012] Preferably, an oil storage tank is fixedly assembled at the bottom of the workbench. A control pump is fixedly assembled on the side wall of the oil storage tank. The output end of the control pump is connected to the input ends of the first hydraulic telescopic cylinder and the second hydraulic telescopic cylinder through a connecting hose.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: A hot bending device for steel pipes in ship processing. Compared with traditional simple bending equipment, a cooling assembly is provided in this device. After the steel pipe is hot bent, the cooling assembly can cool down the bent part of the steel pipe, accelerating the overall shaping of the steel pipe after bending, thereby reducing the deformation of the steel pipe generated during the subsequent process of picking up and moving the steel pipe, and improving the overall product quality of the steel pipe after bending;

[0014] At the same time, the cooling assembly in this device and the heating mechanism during the bending process of the steel pipe are arranged at different height positions. The cooling assembly reduces the influence on the heating mechanism during the process of cooling and shaping the steel pipe, reduces the heat dissipation of the heating mechanism, and enables the heating mechanism to heat the subsequent steel pipes to be processed more quickly. This device is convenient for batch hot bending processing operations of steel pipes, improving the hot bending processing efficiency of steel pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional view of the present utility model.

[0016] Figure 2 is a structural schematic diagram of the heating mechanism of the present utility model.

[0017] Figure 3This is a schematic structural diagram of the lifting component of the present utility model.

[0018] Figure 4 This is a schematic structural diagram of the fixing frame of the present utility model.

[0019] Figure 5 This is a schematic structural diagram of the cooling frame of the present utility model.

[0020] Figure 6 This is a schematic structural diagram of the present utility model for clamping and fixing a steel pipe.

[0021] Figure 7 This is a schematic structural diagram of the present utility model for bending a steel pipe.

[0022] Figure 8 This is a schematic structural diagram of the present utility model for cooling the bent steel pipe.

[0023] In the figure: 1, workbench; 2, support frame; 3, pipe bending mechanism; 31, fixing frame; 311, first frame body; 312, second frame body; 313, clamping groove; 314, connecting rod; 315, limiting plate; 316, limiting shaft; 317, spring; 32, action frame; 321, connecting shaft; 322, auxiliary support plate; 323, action shaft; 33, driving motor; 34, rotating plate; 4, heating mechanism; 41, telescopic cylinder; 42, moving frame; 43, heating frame; 44, first heater; 45, heating shaft; 46, second heater; 5, lifting component; 51, first hydraulic telescopic cylinder; 52, second hydraulic telescopic cylinder; 53, fuel tank; 54, control pump; 6, cooling component; 61, support shaft; 62, mounting plate; 63, cooling frame; 64, mounting groove; 65, fan; 66, guide plate. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0025] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The utility model provides a technical solution: a hot bending device for steel pipes for ship processing, which is mainly used for bending processing of internal pipelines during ship processing and manufacturing, including a workbench 1, a support frame 2 is fixedly installed at the bottom of the workbench 1, and the support frame 2 is used to support and fix the workbench 1. The surface of the workbench 1 is equipped with a pipe bending mechanism 3 and a heating mechanism 4. During use, the steel pipe is clamped and fixed by the pipe bending mechanism 3, and the bending part of the steel pipe can be heated by the heating mechanism 4. After heating to a certain temperature, the action of the pipe bending mechanism 3 makes it cooperate with the heating mechanism 4 to complete the hot bending operation of the steel pipe, which is different from the traditional hot bending Compared with the bending device, the present device is provided with a lifting component 5 which is transmission-connected with the bending mechanism 3 at the bottom thereof, and a cooling component 6 is assembled on the surface of the workbench 1. After the hot bending operation is completed, the height of the bent steel pipe can be increased by the lifting component 5 to correspond to the position of the cooling component 6, and then the steel pipe is quickly cooled and shaped by the cooling component 6. The cooling component 6 and the heating mechanism 4 are arranged at different heights, and the heating mechanism 4 is not affected in the process of cooling and shaping the steel pipe, thereby avoiding the temperature reduction of the heating mechanism 4, resulting in slower heating efficiency of the steel pipe when the remaining steel pipes are subsequently subjected to batch hot bending treatment.

[0026] like Figure 2 As shown in the figure, the heating mechanism 4 includes a telescopic cylinder 41, which is fixedly mounted on the surface of the workbench 1, and the input end of the telescopic cylinder 41 is connected to an external air pump, and the action of the output end of the telescopic cylinder 41 can be controlled by the external air pump, and the external air pump is controlled by an integrated controller, and the integrated controller is fixedly mounted on the side wall of the support frame 2, and the action stroke of the telescopic cylinder 41 is fixed, and the output end of the telescopic cylinder 41 is fixedly connected to a mobile frame 42, and the side wall of the mobile frame 42 is detachably fixedly mounted with a heating frame 43 by fixing screws, and the side wall of the heating frame 43 is provided with a U-shaped groove for the steel pipe to pass through, and the heating frame 43 adopts an easy-to-guide The hot synthetic steel material is cast, and the top and bottom of the heating frame 43 are respectively fixedly equipped with a first heater 44, which is a plate-type heater. The first heater 44 is electrically connected to an external power supply. The heating frame 43 is heated by setting the first heater 44, so that after the steel pipe is inserted into the heating frame 43, the heating frame 43 can fully heat the steel pipe. The bottom of the moving frame 42 is integrally formed with a limiting block, and the limiting block is slidably connected to the limiting groove opened on the surface of the workbench 1. The moving stroke of the moving frame 42 can be limited by the cooperation of the limiting block and the limiting groove, thereby increasing the accuracy of the moving stroke of the moving frame 42;

[0027] A heating shaft 45 is fixedly mounted on the surface of the workbench 1 by fixing bolts, and a second heater 46 is embedded in the inner cavity of the heating shaft 45. The second heater 46 is electrically connected to an external power supply. The second heater 46 is a tubular heater, and a heat-conducting block is arranged between the second heater 46 and the heating shaft 45. The heating shaft 45 is heated by the second heater 46. The heating shaft 45 is also cast with a synthetic steel material that is easy to conduct heat. The steel pipe can be bent along the side wall of the heating shaft 45 through the action of the pipe bending mechanism 3.

[0028] like Figure 3 As shown in , the pipe bending mechanism 3 includes a fixed frame 31 and an action frame 32, and the fixed frame 31 and the action frame 32 are symmetrically arranged on the left and right with the heating mechanism 4 as the center. The fixed frame 31 is used to clamp and fix one end of the steel pipe during the pipe bending process, and the action frame 32 applies pressure to the other end of the steel pipe to bend the steel pipe, and the surface of the workbench 1 is provided with an arc groove for the action frame 32 to move, and the bottom of the support frame 2 is fixedly equipped with a driving motor 33, and the driving motor 33 is electrically connected to an external power supply and an integrated controller. The integrated controller can control the rotation stroke of the output end of the driving motor 33, and the output end of the driving motor 33 is fixedly equipped with a rotating plate 34 through a coupling. The setting of the coupling can adjust the rotation ratio of the output end of the driving motor 33, and the driving motor 33 drives the rotating plate 34 to rotate each time. The top of the rotating plate 34 is transmission-connected to the bottom of the action frame 32, and the driving motor 33 drives the rotating plate 34 to rotate, so that the action frame 32 can bend the steel pipe;

[0029] like Figure 4As shown in the figure, the fixing frame 31 includes a first frame body 311 and a second frame body 312. Arc-shaped grooves are integrally formed on the opposite side walls of the first frame body 311 and the second frame body 312 respectively. The arc-shaped grooves of the two side frames are combined with each other to form a clamping groove 313 for clamping and fixing the steel pipe, and the size of the clamping groove 313 is adapted to the steel pipe. A high-temperature-resistant rubber layer can be pasted and fixed on the inner cavity side wall of the clamping groove 313. Through the rubber layer, the stability of the first frame body 311 and the second frame body 312 for clamping and fixing the end of the steel pipe can be increased. A connecting rod 314 is welded and fixed on the side wall of the second frame body 312 close to the first frame body 311. The end of the connecting rod 314 penetrates through the first frame body 311 and then a limiting plate 315 is welded and fixed. A limiting shaft 316 penetrating through the limiting plate 315 is welded and fixed on the side wall of the first frame body 311. A spring 317 is sleeved on the outer side wall of the limiting shaft 316. Through the elastic force generated by the spring 317 on the limiting plate 315, the first frame body 311 and the second frame body 312 can be kept in a fitting state. A handle frame is welded and fixed on the side wall of the second frame body 312 far from the first frame body 311. By setting the handle frame, it is convenient to separate the second frame body 312 from the first frame body 311, so that there is a certain distance between the first frame body 311 and the second frame body 312, which is convenient for the insertion and extraction of the steel pipe in the clamping groove 313.

[0030] As Figure 3 shown in the figure, the action frame 32 includes a connecting shaft 321. An auxiliary support plate 322 is welded and fixed on the top of the connecting shaft 321. The auxiliary support plate 322 is used to assist in lifting the end of the steel pipe. An action shaft 323 is welded and fixed on the top of the auxiliary support plate 322. Through the action shaft 323, the end of the steel pipe is driven to act, so that the steel pipe is bent along the heating shaft 45.

[0031] As Figure 4 shown in the figure, the lifting assembly 5 includes a first hydraulic telescopic cylinder 51 and a second hydraulic telescopic cylinder 52. The first hydraulic telescopic cylinder 51 is fixedly assembled at the bottom of the fixing frame 31 and is fixedly assembled on the surface of the inner fixing plate of the support frame 2. The second hydraulic telescopic cylinder 52 is fixedly assembled at the bottom of the action frame 32 and is fixedly assembled on the surface of the rotating plate 34. A fuel tank 53 is fixedly assembled at the bottom of the workbench 1. The fuel tank 53 is used for storing hydraulic oil. A control pump 54 is fixedly assembled on the side wall of the fuel tank 53. The control pump 54 is electrically connected to an external power supply and an integrated controller. The output end of the control pump 54 is connected to the input ends of the first hydraulic telescopic cylinder 51 and the second hydraulic telescopic cylinder 52 through a connecting hose. Through the control pump 54, the output ends of the first hydraulic telescopic cylinder 51 and the second hydraulic telescopic cylinder 52 can be driven to act synchronously, so that the output ends of the first hydraulic telescopic cylinder 51 and the second hydraulic telescopic cylinder 52 rise or fall synchronously, and the stroke of the output ends of the first hydraulic telescopic cylinder 51 and the second hydraulic telescopic cylinder 52 rising or falling each time is the same.

[0032] AsFigure 1 and Figure 5 As shown in Figure 5 , the cooling assembly 6 includes a support shaft 61, which is welded and fixed at the four corners of the surface of the workbench 1. At the top of the support shaft 61, a mounting plate 62 is welded and fixed. At the bottom of the mounting plate 62, a cooling frame 63 is welded and fixed. Two mounting grooves 64 are symmetrically distributed in the front and rear in the cooling frame 63. A blower 65 is embedded in the mounting groove 64. The blower 65 is electrically connected to an external power supply and an integrated controller. The blower 65 can drive air to flow from right to left. The air is blown by the blower 65 towards the position of the steel pipe to perform a cooling and shaping process on the bent steel pipe. A flow guide plate 66 is welded and fixed to the side wall of the cooling frame 63. By providing the flow guide plate 66, it is possible to prevent cold air from flowing downward, thereby reducing the heating temperature of the heating frame 43 and the heating shaft 45 and affecting the heating efficiency of the steel pipe during subsequent batch bending of the steel pipe.

[0033] Working principle: Now, the operation process of using this device to perform hot bending on a steel pipe will be described. First, turn on the first heater 44 and the second heater 46 to preheat the heating frame 43 and the heating shaft 45 respectively. After a period of time, pull the second frame body 312 forward, and then insert the steel pipe to be bent into the clamping groove 313. One end of the steel pipe is clamped and fixed by the fixing frame 31, and then the other end of the steel pipe is placed on the top of the auxiliary support plate 322. The auxiliary support plate 322 is used to assist in lifting the steel pipe (as shown in the state in Figure 6 ); Figure 6 the state shown in Figure 6 ;

[0034] Through the cooperation of the heating frame 43 and the heating shaft 45, the bending part of the steel pipe is heated. After a period of time, control the rotating plate 34 to act, so that the action frame 32 drives the end of the steel pipe to act to perform a bending operation on the steel pipe (as shown in the state in Figure 7 ); Figure 7 the state shown in Figure 7 ;

[0035] After the steel pipe is bent, control the telescopic cylinder 41 to drive the moving frame 42 and the heating frame 43 to move backward to avoid affecting the rising of the steel pipe. Then, through the upward movement of the output ends of the first hydraulic telescopic cylinder 51 and the second hydraulic telescopic cylinder 52, the bent steel pipe is lifted to a height position corresponding to the cooling frame 63 (as shown in Figure 8 ). The blower 65 is turned on to drive air to flow towards the bending part of the steel pipe to accelerate the cooling and shaping of the steel pipe. After a certain period of time, turn off the blower 65, and then make the first hydraulic telescopic cylinder 51 and the second hydraulic telescopic cylinder 52 reset downward. After the action frame 32 resets, the bent steel pipe can be taken out. After the subsequent steel pipe to be bent is inserted into the fixing frame 31, the telescopic cylinder 41 controls the moving frame 42 and the heating frame 43 to act, so that the heating frame 43 can be attached to the steel pipe to heat the bending part of the steel pipe, completing the batch bending operation of the steel pipe. Figure 8 shown in Figure 8 , the blower 65 is turned on to drive air to flow towards the bending part of the steel pipe to accelerate the cooling and shaping of the steel pipe. After a certain period of time, turn off the blower 65, and then make the first hydraulic telescopic cylinder 51 and the second hydraulic telescopic cylinder 52 reset downward. After the action frame 32 resets, the bent steel pipe can be taken out. After the subsequent steel pipe to be bent is inserted into the fixing frame 31, the telescopic cylinder 41 controls the moving frame 42 and the heating frame 43 to act, so that the heating frame 43 can be attached to the steel pipe to heat the bending part of the steel pipe, completing the batch bending operation of the steel pipe.

Claims

1. A hot bending device for steel pipes for ship processing, comprising a workbench (1), a support frame (2) being fixedly mounted on the bottom of the workbench (1), characterized in that: A pipe bending mechanism (3) is installed between the workbench (1) and the support frame (2); a lifting assembly (5) drivingly connected to the pipe bending mechanism (3) is installed between the workbench (1) and the support frame (2); a heating mechanism (4) is installed on the top of the workbench (1); and a cooling assembly (6) is fixedly installed on the top of the workbench (1); The pipe bending mechanism (3) comprises a fixed frame (31) and an actuating frame (32), wherein the fixed frame (31) and the actuating frame (32) are symmetrically arranged on the left and right with the heating mechanism (4) as the center, and a driving motor (33) is fixedly mounted on the bottom of the supporting frame (2), and a rotating plate (34) is fixedly connected to the output end of the driving motor (33); The lifting assembly (5) comprises a first hydraulic telescopic cylinder (51) and a second hydraulic telescopic cylinder (52), wherein an output end of the first hydraulic telescopic cylinder (51) is fixedly connected to the bottom of a fixed frame (31), and the first hydraulic telescopic cylinder (51) is fixedly assembled in a supporting frame (2), and an output end of the second hydraulic telescopic cylinder (52) is fixedly connected to the bottom of an actuating frame (32), and the second hydraulic telescopic cylinder (52) is fixedly assembled on the surface of a rotating plate (34).

2. The hot bending device for steel pipes for ship processing according to claim 1, characterized in that: The heating mechanism (4) comprises a telescopic cylinder (41), the output end of the telescopic cylinder (41) is fixedly connected to a movable frame (42), the side wall of the movable frame (42) is fixedly connected to a heating frame (43), the upper and lower side walls of the heating frame (43) are respectively fixedly mounted with a first heater (44), the top of the workbench (1) is fixedly mounted with a heating shaft (45), and the inner cavity of the heating shaft (45) is embedded with a second heater (46).

3. The hot bending device for steel pipes for ship processing according to claim 1, characterized in that: The cooling assembly (6) comprises a support shaft (61), wherein the support shaft (61) is fixedly mounted at the four corners of the top of the workbench (1), the top of the support shaft (61) is fixedly connected to a mounting plate (62), the bottom of the mounting plate (62) is fixedly connected to a cooling rack (63), a side wall of the cooling rack (63) is provided with a mounting groove (64), and a fan (65) is embedded and mounted in the mounting groove (64).

4. The hot bending device for steel pipes for ship processing according to claim 3 is characterized in that: A guide plate (66) is fixedly connected to the side wall of the cooling rack (63).

5. The hot bending device for steel pipes for ship processing according to claim 1, characterized in that: The fixed frame (31) comprises a first frame body (311) and a second frame body (312); the first frame body (311) and the second frame body (312) have opposite side walls provided with clamping grooves (313); the side wall of the second frame body (312) is fixedly connected to a connecting rod (314) passing through the first frame body (311); the end of the connecting rod (314) is fixedly connected to a limiting plate (315); the side wall of the first frame body (311) is fixedly connected to a limiting shaft (316) passing through the limiting plate (315); and the outer side wall of the limiting shaft (316) is sleeved with a spring (317).

6. The hot bending device for steel pipes for ship processing according to claim 1, characterized in that: The action frame (32) comprises a connecting shaft (321), the top of the connecting shaft (321) is fixedly connected to an auxiliary support plate (322), and the top of the auxiliary support plate (322) is fixedly connected to an action shaft (323).

7. The hot bending device for steel pipes for ship processing according to claim 1, characterized in that: An oil storage tank (53) is fixedly mounted on the bottom of the workbench (1), and a control pump (54) is fixedly mounted on the side wall of the oil storage tank (53). The output end of the control pump (54) is connected to the input ends of the first hydraulic telescopic cylinder (51) and the second hydraulic telescopic cylinder (52) via a connecting hose.

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