Rail bending machine

Abstract

The utility model relates to the technical field of track machining, in particular to a track bending machine which fixes and pushes a track through a pushing device and reduces scratches generated on the surface layer in the track pushing process. The moving track of the track is limited through the clamping device, and the stability of the bending process is improved; the rail is locally heated through the heating device, and the heating device moves along with the rail in the starting process, so that the production efficiency of the equipment is improved; the bending radian is adjusted through the adjusting device, and the practicability of the device is improved; comprising a pushing device, a clamping device, a heating device and an adjusting device, the clamping device is connected with the pushing device, the heating device is installed on the clamping device, and the adjusting device is installed on the clamping device.

Description

Technical Field

[0001] The utility model relates to the technical field of rail processing, in particular to a rail bending machine. Background Art

[0002] Medium frequency induction heating is a heating method based on the principle of electromagnetic induction. It uses medium frequency current to generate an alternating magnetic field in the inductor. When this alternating magnetic field acts on the workpiece, an induced current of the same frequency will be generated in the workpiece, and the workpiece can be heated quickly. Compared with traditional heating methods, medium frequency induction heating has the advantages of fast heating speed, high efficiency, less oxidation and decarburization, uniform heating, and high temperature control accuracy. In addition, it can also achieve local heating, good product quality, energy saving, and a good working environment, almost no heat, noise and dust, less space for operation, and high production efficiency.

[0003] The Chinese utility model patent with application number CN201922143193.7 in the prior art relates to a hot bending device for processing aluminum alloy doors and windows, including a bending platform, a pushing plate, a fixing card, a plug rod and a medium frequency heating coil, etc., which can make the bending part beautiful and reduce wrinkles at the bending part.

[0004] However, in actual use, the above device needs to turn on the medium frequency heating coil in advance, resulting in a decrease in the production efficiency of the equipment. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a rail bending machine which fixes and pushes the rail through a pushing device, thereby reducing scratches on the surface during the pushing process of the rail; limits the running trajectory of the rail through a clamping device, thereby improving the stability of the bending process; locally heats the rail through a heating device, and moves with the rail during the startup process, thereby improving the production efficiency of the equipment; and adjusts the bending curvature through an adjusting device, thereby improving the practicality of the device.

[0006] The utility model discloses a rail bending machine, which comprises a pushing device, a clamping device, a heating device and an adjusting device, wherein the clamping device is connected with the pushing device, the heating device is mounted on the clamping device, and the adjusting device is mounted on the clamping device; the rail is fixed and pushed by the pushing device, thereby reducing scratches on the surface during the pushing process of the rail; the running track of the rail is limited by the clamping device, thereby improving the stability of the bending process; the heating device locally heats the rail and moves with the rail during the starting process, thereby improving the production efficiency of the equipment; the bending curvature is adjusted by the adjusting device, thereby improving the practicability of the device.

[0007] Preferably, the pushing device includes a conveying frame, a conveying roller, a pushing hydraulic cylinder, a first hydraulic cylinder motor, a C-shaped frame, a clamping hydraulic cylinder and a clamping claw. The right end face of the conveying frame is connected with the pushing hydraulic cylinder, the first hydraulic cylinder motor is installed on the pushing hydraulic cylinder, the moving end of the pushing hydraulic cylinder is connected with the C-shaped frame, and a group of clamping hydraulic cylinders are respectively installed on the front and rear end faces of the C-shaped frame. The moving end of the clamping hydraulic cylinder passes through the side of the C-shaped frame and extends to the inside of the C-shaped frame to be connected with the clamping claw. A plurality of groups of conveying rollers are horizontally installed on the upper part of the conveying frame; the rails are supported by the plurality of groups of conveying rollers on the conveying frame to reduce scratches caused by the rails during the movement of the conveying frame, and the two groups of clamping claws are fixed to one end of the rail by controlling the extension of the two groups of clamping hydraulic cylinders, and the extension of the pushing hydraulic cylinder is controlled to push the rail to the left, thereby improving the practicality of the device.

[0008] Preferably, the clamping device includes a fixed frame, a second hydraulic cylinder motor, a load-bearing roller, a supporting frame and a fixed roller. A fixed frame is installed on the left side of the conveying frame, a second hydraulic cylinder motor is installed on the front end surface of the fixed frame, a load-bearing roller is installed on the lower part of the right end surface of the fixed frame, a rectangular through hole is arranged on the left end surface of the fixed frame, a hydraulic cylinder is respectively arranged on the upper end surface and the front and rear end surfaces of the rectangular through hole, a group of supporting frames are connected to the movable end of the hydraulic cylinder, and a fixed roller is installed on the supporting frame; the hydraulic cylinder in the through hole of the fixed frame is controlled to extend, so that the moving trajectory of the rail is limited by multiple groups of fixed rollers cooperating with the load-bearing rollers, so as to prevent the rail from deviating during the bending process, thereby improving the practicability of the device.

[0009] Preferably, the heating device includes an electric cylinder, a medium frequency inverter and a frequency conversion coil, the electric cylinder is installed on the right end face of the fixed frame, the moving end of the electric cylinder passes through the left end face of the fixed frame and extends to the left side of the fixed frame, the frequency conversion coil is installed on the moving end of the electric cylinder through a bracket, the medium frequency inverter is installed on the upper end face of the fixed frame, and the medium frequency inverter is connected to the frequency conversion coil through a wire; while pushing the rail, the medium frequency inverter is turned on to allow the frequency conversion coil to locally heat the rail, and in the initial starting stage, the electric cylinder is controlled to continuously extend so that the spatial position of the frequency conversion coil relative to the rail remains unchanged until the frequency conversion coil is preheated, thereby shortening the waiting time in the production process and improving the production efficiency of the device.

[0010] Preferably, the adjusting device includes a radius slide, an adjusting frame and a second electric cylinder, the radius slide is connected to the rear end face of the fixed frame, the adjusting frame is mounted on the radius slide and can move on the radius slide, the second electric cylinder is installed on the right end face of the adjusting frame, the moving end of the second electric cylinder passes through the right end face of the adjusting frame and contacts the radius slide; the bending diameter of the equipment is changed by adjusting the position of the adjusting frame on the radius slide, and the position of the adjusting frame on the radius slide is fixed by controlling the second electric cylinder to extend and press the radius slide, thereby improving the practicality of the device.

[0011] Preferably, it also includes a rotating shaft seat, a connecting rod, a fixing ring, a universal wheel, a dial and a pointer. The front end of the adjusting frame is provided with a rotating shaft seat, the connecting rod is installed on the rotating shaft seat, the front part of the connecting rod is connected to the fixing ring, the lower part of the connecting rod is installed with a universal wheel, the upper part of the rotating shaft seat passes through the upper end surface of the adjusting frame, a dial is provided on the upper end surface of the left part of the adjusting frame, and the pointer is installed on the part of the rotating shaft seat located on the upper side of the adjusting frame; connecting rods of different lengths are selected according to the position of the adjusting frame on the radius slide and installed on the rotating shaft seat, the rotation process of the connecting rod is assisted by the universal wheel to reduce the vibration during the rotation process, the left part of the rail is fixed by the fixing ring, and the operator is convenient to confirm the bending angle by the pointer and the dial, thereby improving the practicability of the device.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the rail is fixed and pushed by the pushing device, thereby reducing scratches on the surface during the pushing process of the rail; the running trajectory of the rail is limited by the clamping device, thereby improving the stability of the bending process; the rail is locally heated by the heating device, and moves with the rail during the startup process, thereby improving the production efficiency of the equipment; the bending curvature is adjusted by the adjusting device, thereby improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a first axonometric structural schematic diagram of the utility model;

[0014] Figure 2 It is a second axonometric structural schematic diagram of the utility model;

[0015] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 4 It is a partial enlarged structural schematic diagram of the utility model;

[0017] Figure 5 It is a third axonometric structural schematic diagram of the utility model;

[0018] Markings in the attached drawings: 1. Conveying frame; 2. Conveying roller; 3. Pushing hydraulic cylinder; 4. First hydraulic cylinder motor; 5. C-shaped frame; 6. Clamping hydraulic cylinder; 7. Clamping claw; 8. Fixed frame; 9. Second hydraulic cylinder motor; 10. Load-bearing roller; 11. Supporting frame; 12. Fixed roller; 13. Electric cylinder; 14. Medium frequency inverter; 15. Frequency conversion coil; 16. Radius slide; 17. Adjusting frame; 18. Second electric cylinder; 19. Rotating shaft seat; 20. Connecting rod; 21. Fixed ring; 22. Universal wheel; 23. Dial; 24. Pointer. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0020] Example

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The clamping device is connected to the pushing device, the heating device is installed on the clamping device, and the adjusting device is installed on the clamping device;

[0022] First, place the rail through the fixed frame 8 and onto the conveying frame 1. Then, control the extension of the two groups of clamping hydraulic cylinders 6 to fix one end of the rail with the two groups of clamping claws 7, and control the extension of the pushing hydraulic cylinder 3 to push the rail to the left. Then, control the extension of the hydraulic cylinder in the through hole of the fixed frame 8, so that the moving track of the rail is limited by multiple groups of fixed rollers 12 cooperating with the bearing rollers 10. At the same time, turn on the medium frequency inverter 14 to make the frequency conversion coil 15 locally heat the rail, and control the electric cylinder 13 to continuously extend in the initial starting stage so that the spatial position of the frequency conversion coil 15 relative to the rail remains unchanged until the frequency conversion coil 15 is preheated.

[0023] The pushing device includes a conveying frame 1, a conveying roller 2, a pushing hydraulic cylinder 3, a first hydraulic cylinder motor 4, a C-shaped frame 5, a clamping hydraulic cylinder 6 and a clamping claw 7. The right end surface of the conveying frame 1 is connected with the pushing hydraulic cylinder 3, the first hydraulic cylinder motor 4 is installed on the pushing hydraulic cylinder 3, the moving end of the pushing hydraulic cylinder 3 is connected with the C-shaped frame 5, and a group of clamping hydraulic cylinders 6 are respectively installed on the front and rear end surfaces of the C-shaped frame 5. The moving end of the clamping hydraulic cylinder 6 passes through the side of the C-shaped frame 5 and extends to the inside of the C-shaped frame 5 to be connected with the clamping claw 7. A plurality of conveying rollers 2 are horizontally installed on the upper part of the conveying frame 1;

[0024] The clamping device includes a fixed frame 8, a second hydraulic cylinder motor 9, a bearing roller 10, a support frame 11 and a fixed roller 12. The fixed frame 8 is installed on the left side of the conveying frame 1, and the second hydraulic cylinder motor 9 is installed on the front end surface of the fixed frame 8. The bearing roller 10 is installed on the lower part of the right end surface of the fixed frame 8. A rectangular through hole is arranged on the left end surface of the fixed frame 8. A hydraulic cylinder is respectively arranged on the upper end surface and the front and rear end surfaces of the rectangular through hole. A group of support frames 11 are connected to the moving ends of the hydraulic cylinders, and the support frames 11 are installed with fixed rollers 12.

[0025] The heating device includes an electric cylinder 13, a medium frequency inverter 14 and a frequency conversion coil 15. The electric cylinder 13 is installed on the right end surface of the fixed frame 8. The moving end of the electric cylinder 13 passes through the left end surface of the fixed frame 8 and extends to the left side of the fixed frame 8. The frequency conversion coil 15 is installed on the moving end of the electric cylinder 13 through a bracket. The medium frequency inverter 14 is installed on the upper end surface of the fixed frame 8. The medium frequency inverter 14 is connected to the frequency conversion coil 15 through a wire.

[0026] The adjusting device comprises a radius slide 16, an adjusting frame 17 and a second electric cylinder 18. The radius slide 16 is connected to the rear end surface of the fixed frame 8. The adjusting frame 17 is sleeved on the radius slide 16 and can move on the radius slide 16. The second electric cylinder 18 is installed on the right end surface of the adjusting frame 17. The moving end of the second electric cylinder 18 passes through the right end surface of the adjusting frame 17 and contacts the radius slide 16.

[0027] It also includes a rotating shaft seat 19, a connecting rod 20, a fixing ring 21, a universal wheel 22, a dial 23 and a pointer 24. The front end of the adjusting frame 17 is provided with a rotating shaft seat 19, the connecting rod 20 is installed on the rotating shaft seat 19, the front part of the connecting rod 20 is connected with a fixing ring 21, the lower part of the connecting rod 20 is installed with a universal wheel 22, the upper part of the rotating shaft seat 19 passes through the upper end surface of the adjusting frame 17, the upper end surface of the left part of the adjusting frame 17 is provided with a dial 23, and the pointer 24 is installed on the part of the rotating shaft seat 19 located on the upper side of the adjusting frame 17;

[0028] The rail is fixed and pushed by a pushing device to reduce scratches on the surface during the pushing process; the running trajectory of the rail is limited by a clamping device to improve the stability of the bending process; the rail is locally heated by a heating device and moves with the rail during the startup process to improve the production efficiency of the equipment; the bending curvature is adjusted by an adjusting device to improve the practicability of the device.

[0029] The pushing hydraulic cylinder 3, the first hydraulic cylinder motor 4, the clamping hydraulic cylinder 6, the medium frequency inverter 14, the second hydraulic cylinder motor 9 and the frequency conversion coil 15 of the rail bending machine of the utility model are purchased on the market, and the technicians in this industry only need to install and operate them according to the accompanying instruction manual, without the need for the technicians in this field to make creative labor.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A rail bending machine; characterized in that, The utility model comprises a pushing device, a clamping device, a heating device and an adjusting device. The clamping device is connected with the pushing device, the heating device is installed on the clamping device, and the adjusting device is installed on the clamping device.

2. A rail bending machine according to claim 1, characterized in that: The pushing device comprises a conveying frame (1), a conveying roller (2), a pushing hydraulic cylinder (3), a first hydraulic cylinder motor (4), a C-shaped frame (5), a clamping hydraulic cylinder (6) and a clamping claw (7). The right end surface of the conveying frame (1) is connected with the pushing hydraulic cylinder (3), the first hydraulic cylinder motor (4) is installed on the pushing hydraulic cylinder (3), the moving end of the pushing hydraulic cylinder (3) is connected with the C-shaped frame (5), a group of clamping hydraulic cylinders (6) are respectively installed on the front and rear end surfaces of the C-shaped frame (5), the moving end of the clamping hydraulic cylinder (6) passes through the side surface of the C-shaped frame (5) and extends to the inside of the C-shaped frame (5) to be connected with the clamping claw (7), and a plurality of conveying rollers (2) are horizontally installed on the upper part of the conveying frame (1).

3. A rail bending machine according to claim 1, characterized in that: The clamping device comprises a fixed frame (8), a second hydraulic cylinder motor (9), a bearing roller (10), a supporting frame (11) and a fixed roller (12). The fixed frame (8) is installed on the left side of the conveying frame (1), the second hydraulic cylinder motor (9) is installed on the front end surface of the fixed frame (8), the bearing roller (10) is installed on the lower part of the right end surface of the fixed frame (8), a rectangular through hole is arranged on the left end surface of the fixed frame (8), a hydraulic cylinder is respectively arranged on the upper end surface and the front and rear end surfaces of the rectangular through hole, a group of supporting frames (11) are connected to the movable ends of the hydraulic cylinders, and the fixed roller (12) is installed on the supporting frames (11).

4. A rail bending machine as claimed in claim 3, characterized in that: The heating device comprises an electric cylinder (13), a medium frequency inverter (14) and a frequency conversion coil (15). The electric cylinder (13) is mounted on the right end surface of the fixed frame (8). The movable end of the electric cylinder (13) passes through the left end surface of the fixed frame (8) and extends to the left side of the fixed frame (8). The frequency conversion coil (15) is mounted on the movable end of the electric cylinder (13) through a bracket. The medium frequency inverter (14) is mounted on the upper end surface of the fixed frame (8). The medium frequency inverter (14) is connected to the frequency conversion coil (15) through a wire.

5. A rail bending machine as claimed in claim 3, characterized in that: The adjusting device comprises a radius slideway (16), an adjusting frame (17) and a second electric cylinder (18); the rear end surface of the fixed frame (8) is connected to the radius slideway (16); the adjusting frame (17) is sleeved on the radius slideway (16) and can move on the radius slideway (16); the right end surface of the adjusting frame (17) is mounted with the second electric cylinder (18); the movable end of the second electric cylinder (18) passes through the right end surface of the adjusting frame (17) and contacts the radius slideway (16).

6. A rail bending machine as claimed in claim 5, characterized in that: The invention also comprises a rotating shaft seat (19), a connecting rod (20), a fixing ring (21), a universal wheel (22), a dial (23) and a pointer (24); the front end of the adjusting frame (17) is provided with the rotating shaft seat (19); the connecting rod (20) is mounted on the rotating shaft seat (19); the front part of the connecting rod (20) is connected with the fixing ring (21); the lower part of the connecting rod (20) is provided with the universal wheel (22); the upper part of the rotating shaft seat (19) passes through the upper end surface of the adjusting frame (17); the dial (23) is arranged on the upper end surface of the left part of the adjusting frame (17); and the pointer (24) is mounted on the part of the rotating shaft seat (19) located on the upper side of the adjusting frame (17).

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