Guide rail bending machining equipment and process thereof

Abstract

The invention discloses guide rail bending machining equipment and a process thereof, and relates to the technical field of stamping bending, the guide rail bending machining equipment comprises a hot pressing die groove assembly, a heating coil assembly, an upper die hot pressing assembly, a steel plate conveying assembly, a guide rail transferring assembly, a steel plate clamping and moving assembly and a steel plate, one end of the moving mechanism is arranged above the mold bottom groove and is lower than the upper mold hot-pressing assembly, the clamping mechanism is arranged below the moving mechanism, one end of the guide rail transferring assembly is arranged above the mold bottom groove, and the other end of the guide rail transferring assembly extends to the rear end of the base. Five groups of U-shaped coils in the U-shaped ceramic plate are used for heating the five areas of the steel plate, the situation that the temperature of the bent position does not reach the standard, and consequently the bent position cracks in the bending stamping process is avoided, and the bent portion of the steel plate can form an arc face more easily by arranging the erecting table arc face on the arc-shaped erecting table.

Description

Technical Field

[0001] The invention relates to the technical field of stamping and bending, and in particular to a guide rail bending processing equipment and a process thereof. Background Art

[0002] The aircraft brake wheel includes a brake device and a wheel assembly, which are installed together on the aircraft landing gear shaft. The wheel assembly is mainly used to support the aircraft and bear the weight of the aircraft, and to taxi on the runway; while the brake device is used to brake the wheels when the aircraft takes off or lands. The outer splines of the moving disc assembly in the brake device cooperate with the inner splines of the brake housing through the guide rail, and the brake housing is fixed on the aircraft landing gear.

[0003] When the guide rail is heated by the prior art bending forming method, the steel plate is only heated at the place where bending is required. When the guide rail is bent and stamped after heating, cracks are easily formed on the outside of the bending part, making it difficult to achieve a high yield rate. In addition, when the steel plate is stamped, it is difficult to ensure the consistency of the forming results. Summary of the invention

[0004] The object of the present invention is to provide a guide rail bending processing equipment and a process thereof to solve at least any one of the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a guide rail bending processing equipment and process thereof, comprising a hot pressing die slot assembly, a heating coil assembly, an upper die hot pressing assembly, a steel plate conveying assembly, a steel plate transfer assembly, a steel plate clamping and moving assembly, and a steel plate; The hot pressing mold groove assembly includes a mold bottom groove and an ejection structure, the bottom of the mold bottom groove is fixedly connected to a base, the bottom of the mold bottom groove is a U-shaped bottom, and arc-shaped platforms are symmetrically arranged at the front and rear ends of the opening position in the mold bottom groove, and the two ends of the steel plate are respectively arranged on the top of the corresponding arc-shaped platforms, and the left and right side walls of the mold bottom groove are provided with square notches near the top, and the ejection structure includes two ejection hydraulic cylinders and a top plate, the two ejection hydraulic cylinders are embedded and vertically symmetrically arranged in the base below the mold bottom groove, and the top plate is fixed between the ends of the telescopic rods of the two ejection hydraulic cylinders, and the U-shaped bottom is provided with a square opening and the top plate matches the square opening; The heating coil assembly includes two groups and is symmetrically arranged outside the position of the square notch. The heating coil assembly includes a horizontally placed and inward-facing U-shaped ceramic plate, five and a half heating coil groups are clamped inside the U-shaped ceramic plate, a mounting plate, and a docking cylinder. The bottom end of the mounting plate is fixed on the base, the docking cylinder is fixedly connected to the middle position of the upper half of the mounting plate and the docking cylinder is horizontally arranged. Two limiting sliding rods are respectively arranged on both sides of the docking cylinder in the upper half of the mounting plate and the limiting sliding rods movably penetrate through the mounting plate. The end of the cylinder rod of the docking cylinder is fixed at the middle position of the back surface of the U-shaped ceramic plate, and the ends of the four limiting sliding rods are fixed at positions close to the four corners on the back surface of the U-shaped ceramic plate. The half heating coil group includes a plurality of U-shaped coils arranged side by side. The upper side of the U-shaped coil is arc-bent towards one side, and the lower side is arc-bent towards the other side. The segments of the U-shaped coil at both ends are perpendicular to the side wall of the bottom groove of the mold. The U-shaped coils in the relatively two half heating coil groups are sequentially docked to heat the steel plate by sleeving. Among the relatively two half heating coil groups, the leftmost U-shaped coil in one group is connected with a positive wire, and the rightmost U-shaped coil in the other group is connected with a negative wire. The positive wire and the negative wire of the U-shaped coil respectively penetrate out from the top of the corresponding U-shaped ceramic plate; The upper die hot pressing assembly is arranged above the opening of the bottom groove of the mold. The upper die hot pressing assembly includes an inverted U-shaped support plate, two downward pressing cylinders, and an arc-shaped pressing block whose bottom matches the U-shaped bottom. The two support walls of the U-shaped support plate are respectively fixedly connected to the middle positions on both sides of the top wall of the base. The two downward pressing cylinders are symmetrically arranged. The fixed ends of the two downward pressing cylinders are fixedly connected to the middle position of the bottom of the fixed wall of the U-shaped support plate. The end of the movable rod of the two downward pressing cylinders is fixedly connected to the top of the arc-shaped pressing block. The arc-shaped pressing block faces downwards and is directly opposite to the notch of the bottom groove of the mold.

[0006] The steel plate clamping and moving assembly includes a steel plate displacement mechanism and a steel plate clamping mechanism. One end of the moving mechanism is arranged above the bottom groove of the mold and at a position lower than the upper die hot pressing assembly. The other end of the moving mechanism extends to the front end of the base. The clamping mechanism is arranged below the moving mechanism. One end of the steel plate conveying assembly is arranged below the clamping mechanism. One end of the steel plate transfer assembly is arranged above the bottom groove of the mold and the other end extends to the rear end of the base.

[0007] Preferably, at the corner near the top of the adjacent sides of the two arc-shaped platforms is a platform arc surface. The side wall of the top wall arc-shaped platform between the platform arc surface and the U-shaped bottom is a vertical wall. The vertical wall and the U-shaped bottom form a U-shaped guide groove. The corner of the adjacent inner side wall at the top of the bottom groove of the mold is a notch arc surface.

[0008] Preferably, the upper mold hot pressing assembly includes a U-shaped support plate, two downward pressing cylinders and an arc-shaped pressure block whose bottom matches the U-shaped bottom. The two supporting walls of the U-shaped support plate are respectively fixedly connected to the middle positions on both sides of the top wall of the base. The two downward pressing cylinders are symmetrically arranged, and the fixed ends of the two downward pressing cylinders are fixedly connected to the middle position of the bottom of the fixed wall of the U-shaped support plate. The movable rod ends of the two downward pressing cylinders are fixedly connected to the top of the arc-shaped pressure block, and the position of the arc-shaped pressure block is in the same vertical direction as the position of the U-shaped bottom.

[0009] Preferably, the steel plate displacement mechanism includes two support frames, two first bidirectional motors, two first threaded rods, two first support plates, a connecting plate, two fixed blocks and a fixed rod, the two support legs at one end of the two support frames are respectively fixedly connected to the top wall of the base near the two sides and the two support legs on the same side are respectively located between the bottom groove of the mold on the same side and the support wall of the U-shaped support plate, the support legs at the other ends of the two support frames are respectively extended to the front end of the base and fixedly connected to the ground, the two first support plates are respectively fixedly connected to the top wall of the support frame above the base near the end, the two first bidirectional motors are respectively fixedly connected to the top wall of the support frame at the other end near the end, and the two One end of each first threaded rod is fixedly connected to the output end of the corresponding first bidirectional motor and the other end is fixedly sleeved with a bearing, the bearing is embedded in the rear side wall of the corresponding first support plate, the first threaded rod on the same side passes through the connecting plate at a position close to the side of the connecting plate and is threadedly connected to the connecting plate, the two fixing blocks are fixedly connected to the outer side of the top plate of the leftmost support frame near the two ends, the fixing rod is arranged between the two fixing blocks and the two ends of the fixing rod are fixedly connected to the corresponding fixing blocks, a rear wire is sleeved on the outer wall of the fixing rod near the rear end, one end of the wire passes through the first support plate and is electrically connected to the descending cylinder and the clamping cylinder respectively, and the other end of the wire is connected to an external power supply Preferably, the steel plate clamping mechanism comprises a connecting seat, two lowering cylinders, two L-shaped clamping plates, a mounting seat, four clamping cylinders, a load-bearing plate, two limit rods and a placement plate, the top wall of the connecting seat is fixedly connected to the middle position of the bottom wall of the connecting plate, the bottom wall of the connecting seat is fixedly connected to the top wall of the placement plate, the fixed walls of the two lowering cylinders are respectively fixedly connected to the middle position of the bottom wall of the placement plate and the two lowering cylinders are symmetrically arranged, the movable rods of the two lowering cylinders are respectively fixedly connected to the top wall of the load-bearing plate, one end of the two limit rods are respectively fixedly connected to the middle position of the top wall of the load-bearing plate on both sides, the other ends of the two limit rods respectively penetrate the placement plate and are slidably connected to the placement plate, the top wall of the mounting seat is fixedly connected to the bottom wall of the load-bearing plate, the four clamping cylinders are embedded in pairs and horizontally symmetrically arranged on both sides of the mounting seat, the two L-shaped clamping plates are symmetrically arranged on both sides of the mounting seat, the ends of the movable rods of the two clamping cylinders on the same side are respectively fixedly connected to the connecting walls of the L-shaped clamping plates, and rubber pads are provided on the placement walls of the two L-shaped clamping plates.

[0010] Preferably, the steel plate conveyor assembly includes a fixed seat, two roller conveyor belts, two blocks and two fixing mechanisms, the two roller conveyor belts are respectively arranged at positions near both sides of the top wall of the fixed seat and the conveying wheels of the two roller conveyor belts are higher than the top of the roller frame of the conveyor belts, one end of the two roller conveyor belts is located between the base and the supporting legs of the supporting frame extending outward and the two roller conveyor belts are located below the clamping mechanism, the two blocks are respectively fixedly connected to the roller frames on the adjacent sides of the two roller conveyor belts near the top wall and the two blocks extend above the roller frames, the two fixing mechanisms are symmetrically arranged at the outermost roller frames of the two roller conveyor belts near the upper left corner, the fixing mechanism fixes the cylinder, the limit plate and the L-shaped fixing plate, the connecting wall of the L-shaped fixing plate is fixedly connected to the roller frame, the fixed end of the fixed cylinder is fixedly connected to the fixed wall of the L-shaped fixing plate, the movable end of the fixed cylinder is fixedly connected to one side of the limit plate, and the limit plate is located above the roller conveyor belt.

[0011] Preferably, the steel plate transfer assembly includes two semi-clamping assemblies and the two semi-clamping assemblies are symmetrically arranged above the base and extend to the rear end of the base, the semi-clamping assembly includes a fixed frame, a U-shaped support plate, a limiting groove, a second bidirectional motor, a second threaded rod, an inverted U-shaped gear lever, a T-shaped slider, a second support plate and a connecting rod, the support leg at one end of the fixed frame is fixedly connected to the top wall of the base near the front end position and the support leg on the same side is located between the base and the support frame on the same side, the other end of the fixed frame extends to the rear end of the base and is fixedly connected to the ground, the fixed frame is located above the U-shaped ceramic plate, the second support plate is fixedly connected to the top wall of the fixed frame near one end above the base, the second bidirectional motor is symmetrically arranged on the top wall of the fixed frame near one end away from the base, the limiting groove is arranged on the top wall of the fixed frame, the T-shaped slider is arranged above the fixed frame, the sliding wall of the T-shaped slider matches the limiting groove and slides The cam is connected to the second end of the second support plate, and the cam is connected to the second support plate by a threaded connection. The cam is connected to the second support plate by a threaded connection. One end of the second threaded rod is fixedly connected to the output end of the second bidirectional motor and the other end is fixedly sleeved with a bearing, the bearing is embedded in the side wall of the second support plate, the second threaded rod passes through the T-shaped slider and is threadedly connected to the T-shaped slider, one end of the connecting rod is fixedly connected to the inner side of the T-shaped slider, and the other end of the connecting rod is fixedly connected to the inner side of the T-shaped slider, and anti-slip grooves are evenly spaced on the top of the cam-shaped support plate placement wall. The gear rod portion of the cam-shaped gear rod is located above the two fixed frames near one end of the second bidirectional motor, the gear rod portion of the cam-shaped gear rod is higher than the cam-shaped support plate and lower than the side edge of the ejected steel plate, the two connecting walls of the cam-shaped gear rod are respectively fixedly connected to the outer side walls of the corresponding fixed frame top plate, and the rear end of the cam-shaped support plate placement wall is fixedly connected with an inclined sliding inclined plate, and a collecting platform is provided between the two half-clamping assemblies at one end extending from the base, and the lowest end of the sliding inclined plate is located above the collecting platform.

[0012] Preferably, a butt joint groove is provided at the butt joint end of the U-shaped coil connected to the negative electrode wire, and a butt joint matching the butt joint groove is provided at the butt joint end of the U-shaped coil connected to the positive electrode wire, and the end of the butt joint is round.

[0013] The processing is carried out by using the above-mentioned guide rail bending processing equipment, and the specific technological steps are as follows: S1: The staff symmetrically places the two ends of the steel plate on two roller conveyors respectively, starts the roller conveyors through the controller to move the steel plate to the waiting area and then stops running, and then further positions it with the limit plate; S2: Start the steel plate displacement mechanism through the control panel. The connecting plate drives the steel plate clamping mechanism to move above the steel plate. Then start the steel plate clamping mechanism, so that the L-shaped clamping plate moves down and places the steel plate on the placing wall of the L-shaped clamping plate. After the L-shaped clamping plate clamps the steel plate tightly, the steel plate clamping mechanism moves up again. The steel plate displacement mechanism moves the steel plate above the opening of the bottom groove of the mold. The steel plate clamping mechanism moves down again to place the steel plate on the top walls of the two arc-shaped platforms in the bottom groove of the mold. After placing, move away the steel plate clamping mechanism; S3: Start the docking cylinder through the controller, so that the two U-shaped ceramic plates drive the U-shaped coils on both sides to move closer to the middle for docking. After the U-shaped coils on both sides are docked, five groups of heating coils sleeved outside the steel plate are formed. Each group of U-shaped coils corresponds to a position on the steel plate. The heating temperature of the two outermost groups of U-shaped coils is 400 - 450 degrees, the heating temperature of the middle group of U-shaped coils is 400 - 450 degrees, and the heating temperature of the two groups of U-shaped coils at the bending part of the steel plate is 600 - 750 degrees, realizing simultaneous heating of five parts of the steel plate. After the steel plate is heated, remove the U-shaped ceramic plate. Start the pressing cylinder through the controller to drive the arc-shaped pressing block to move down to press the steel plate. At this time, the ejecting hydraulic cylinder contracts under the pressure. During the downward pressing of the steel plate, the two ends of the upper steel plate resting on the arc-shaped platform are continuously stressed. When the steel plate is completely pressed into the mold groove, the arc-shaped pressing block stays for 2 - 5 seconds and then moves out. At this time, control the ejecting hydraulic cylinder to slowly push the top plate upward to eject the shaped steel plate to the waiting area above the bottom groove of the mold; S4: Start the steel plate transfer assembly, so that the two U-shaped supporting plates move towards the shaped steel plate. When the two U-shaped supporting plates move under the steel plate, control the movable rod of the ejecting hydraulic cylinder to contract, so that the steel plate moves down, and the two sides of the steel plate just rest on the placing walls of the two U-shaped supporting plates. Then control the second bidirectional motor to reverse, so that the U-shaped supporting plates move away the steel plate. When the steel plate touches the U-shaped stop rod, the steel plate slides from the U-shaped supporting plate to the collection table, and then the subsequent processing of the shaped steel plate can be carried out.

[0014] The beneficial effects of the present invention are as follows: 1. Five groups of C-shaped coils in the C-shaped ceramic plate are used to heat five areas of the steel plate, so that the bending part of the steel plate is heated while the steel plate areas on both sides of the bending part can also be heated. During the bending and stamping process after the steel plate is heated, the heat loss from the bending part to the two sides of the bending part can be reduced, avoiding the occurrence of cracks on the outside of the bending part during bending and stamping due to the temperature of the bending part not meeting the standard, reducing the probability of cracks on the outside of the bending part, and improving the yield rate of the product. In addition, the heating coil assembly can be quickly moved out to the outside of the bottom groove of the mold after heating the steel plate, and can be bent and stamped immediately after heating, further reducing the loss of temperature at the bending part of the steel plate.

[0015] 2. By setting a curved surface on the curved platform, when the steel plate is bent and stamped, the two ends of the steel plate in contact with the curved surface of the platform are subjected to force. The steel plate continues to be pressed, and the two ends of the steel plate are continuously subjected to force, making it easier for the bent part of the steel plate to form an arc surface, making it easier for the steel plate to form a U-shaped guide rail, and improving the forming rate and forming consistency of the steel plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the bottom groove of the mold of the present invention; Figure 3 It is a cross-sectional view of the bottom groove of the mold of the present invention; Figure 4 It is a cross-sectional view of the U-shaped ceramic plate of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the U-shaped coil of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the butt joint and the butt groove of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the steel plate conveying assembly of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the steel plate displacement mechanism of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the steel plate clamping mechanism of the present invention; Fig.10 This is a schematic diagram of the three-dimensional structure of the collecting platform of the present invention; Fig.11 It is a schematic diagram of the three-dimensional structure of the U-shaped gear lever of the present invention; Fig.12 Schematic diagram of the three-dimensional structure of the steel plate transfer assembly of the present invention Fig.13 It is a schematic diagram of the three-dimensional structure of the sliding inclined plate of the present invention.

[0017] In the figure: 1. Base; 2. Hot pressing die groove assembly; 21. Die bottom groove; 22. Arc-shaped platform; 23. Vertical wall; 24. Square notch; 25. Square opening; 26. Platform arc surface; 27. Groove opening arc surface; 28. U-shaped bottom; 3. Steel plate displacement mechanism; 31. Support frame; 32. First bidirectional motor; 33. First threaded rod; 34. Connecting plate; 35. First support plate; 36. Fixed block; 37. Fixed rod; 38. Conducting wire; 4. Steel plate conveying assembly; 41. Fixed seat; 42. Fixed cylinder; 43. Limiting plate; 44. Roller conveyor belt; 45. Stopper; 46. L-shaped fixing plate; 5. Steel plate clamping mechanism; 51. Connecting seat; 52. Lowering cylinder; 53. L-shaped clamping plate; 54. Rubber pad; 55. Mounting seat; 56. Clamping cylinder; 57. Load-bearing plate; 58. Limiting rod; 59. Placing plate; 6. Heating coil assembly; 61. U-shaped ceramic plate; 62. U-shaped coil; 621. Docking head; 622. Docking groove; 63. Docking cylinder; 64. Limiting slide bar; 65. Mounting plate; 7. Upper die hot pressing assembly; 71. U-shaped support plate; 72. Lower pressing cylinder; 73. Arc-shaped pressing block; 8. Steel plate transfer assembly; 81. Fixed frame; 82. U-shaped supporting plate; 821. Sliding inclined plate; 83. Limiting groove; 84. Second bidirectional motor; 85. Second threaded rod; 86. U-shaped retaining bar; 87. T-shaped slider; 88. Second support plate; 89. Connecting rod; 9. Steel plate; 10. Ejecting hydraulic cylinder; 11. Top plate; 12. Collection table. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] The present invention provides a Figure 1-13 rail bending processing device and its process as shown in The hot pressing die groove assembly 2 includes a die bottom groove 21 and an ejection structure. A base 1 is fixedly connected to the bottom of the die bottom groove 21. The bottom of the die bottom groove 21 is a U-shaped bottom 28. Arc-shaped platforms 22 are symmetrically arranged at the front and rear ends of the inner opening position of the die bottom groove 21. Both ends of the steel plate 9 are respectively placed on the tops of the corresponding arc-shaped platforms 22. Square notches 24 are provided near the top of the left and right side walls of the die bottom groove 21. The ejection structure includes two ejection hydraulic cylinders 10 and a top plate 11. The two ejection hydraulic cylinders 10 are embedded and vertically symmetrically arranged in the base 1 below the die bottom groove 21, and the top plate 11 is fixed between the ends of the telescopic rods of the two ejection hydraulic cylinders 10. The U-shaped bottom 28 is provided with a square opening 25, and the top plate 11 matches the square opening 25; The heating coil assembly 6 includes two groups and is symmetrically arranged outside the position of the square notch 24. The heating coil assembly 6 includes a horizontally placed and inward-facing U-shaped ceramic plate 61, five groups of half heating coil groups are clamped inside the U-shaped ceramic plate 61, a mounting plate 65, and a docking cylinder 63. The bottom end of the mounting plate 65 is fixed on the base 1. The docking cylinder 63 is fixedly connected to the middle position of the upper half of the mounting plate 65 and is horizontally arranged. Two limit slide rods 64 are respectively provided on both sides of the docking cylinder 63 in the upper half of the mounting plate 65, and the limit slide rods 64 movably penetrate through the mounting plate 65. The end of the cylinder rod of the docking cylinder 63 is fixed at the middle position of the back surface of the U-shaped ceramic plate 61. The ends of the four limit slide rods 64 are fixed at the positions near the four corners of the back surface of the U-shaped ceramic plate 61. The half heating coil group includes a plurality of U-shaped coils 62 arranged side by side. The upper side of the U-shaped coil 62 is curved in one direction and the lower side is curved in the other direction. The segments of the U-shaped coil 62 at both ends are perpendicular to the side wall of the die bottom groove 21. The U-shaped coils 62 in the opposite two groups of half heating coil groups are sequentially docked to sleeved-heat the steel plate 9. Among the opposite two groups of half heating coil groups, the leftmost U-shaped coil 62 in one group is connected with a positive wire, and the rightmost U-shaped coil 62 in the other group is connected with a negative wire. The positive wire and the negative wire of the U-shaped coil 62 respectively pass through the top of the corresponding U-shaped ceramic plate 61; The upper die hot pressing assembly 7 is arranged above the opening of the die bottom groove 21. The upper die hot pressing assembly 7 includes an inverted U-shaped support plate 71, two downward pressing cylinders 72, and an arc-shaped pressing block 73 whose bottom matches the U-shaped bottom 28. The two support walls of the U-shaped support plate 71 are respectively fixedly connected to the middle positions on both sides of the top wall of the base 1. The two downward pressing cylinders 72 are symmetrically arranged. The fixed ends of the two downward pressing cylinders 72 are fixedly connected to the middle position of the bottom of the fixed wall of the U-shaped support plate 71. The ends of the movable rods of the two downward pressing cylinders 72 are fixedly connected to the top of the arc-shaped pressing block 73. The arc-shaped pressing block 73 faces downward and directly faces the notch of the die bottom groove 21.

[0020] The steel plate clamping moving assembly includes a steel plate displacement mechanism 3 and a steel plate clamping mechanism 5, one end of the moving mechanism is arranged above the mold bottom groove 21 and below the position of the upper mold hot pressing assembly 7, the other end of the moving mechanism extends to the front end of the base 1, the clamping mechanism is arranged below the moving mechanism, one end of the steel plate conveying assembly 4 is arranged below the clamping mechanism, and one end of the steel plate transfer assembly 8 is arranged above the mold bottom groove 21 and the other end extends to the rear end of the base 1.

[0021] Before using the device, connect the device to the power supply first. The device has an external controller with pre-written program instructions. The staff place the two ends of the steel plate 9 on two roller conveyors 44 respectively, start the roller conveyor 44 to convey the steel plate 9 to the area to be taken, and then the L-shaped clamping plate 53 of the steel plate clamping mechanism 5 clamps the steel plate 9. Then, the steel plate displacement mechanism 3 moves the steel plate 9 to directly above the opening of the mold bottom groove 21 (the length of the steel plate 9 is 5% shorter than the length of the opening of the mold bottom groove 21, and the width of the steel plate 9 is 5% shorter than the width of the mold bottom groove 21), and places the steel plate 9 on the top walls of the two arc-shaped platforms 22. The opening of the mold bottom groove 21 limits the steel plate 9 around its circumference to prevent the steel plate 9 from shifting. The arc surface 27 of the notch facilitates the steel plate 9 to slide into the mold bottom groove 21 when placed. After placing the steel plate 9, start the docking cylinder 63 on the mounting plate 65 to drive the U-shaped ceramic plates 61 on both sides (the U-shaped ceramic plates 61 are resistant to high temperatures and insulated, with high safety) to move from the square notch 24 towards the middle of the steel plate 9. The U-shaped ceramic plates 61 drive the inner U-shaped coils 62 to move. When the U-shaped ceramic plates 61 on both sides are docked, the docking heads 621 of the docking ends of the U-shaped coils 62 connected to the positive wires (the docking heads 621 protrude from the sides of the U-shaped ceramic plates 61, and the positive and negative wires of the five groups of U-shaped coils 62 are respectively connected to the positive and negative poles of an external AC power supply device) are inserted into the docking grooves 622 of the docking ends connected to the negative wires. The two U-shaped coils 62 are completed for docking, forming five groups of heating coils to heat five areas of the steel plate 9 (the heating temperature of the two outermost groups of U-shaped coils 62 is 400 - 450 degrees, the heating temperature of the middle group of U-shaped coils 62 is 400 - 450 degrees, and the heating temperature of the two groups of U-shaped coils 62 at the bending part of the steel plate 9 is 600 - 750 degrees. The heating temperature of the two groups of U-shaped coils 62 at the bending part of the steel plate 9 enables the steel plate 9 to reach the temperature for bending conditions. The middle group of U-shaped coils 62 and the two outermost groups of U-shaped coils 62 of the steel plate 9 are heated at different temperatures, which can prevent the temperature in the middle and on both sides of the steel plate 9 from being too low. When the bending part of the steel plate 9 is heated, too much temperature of the bending part is absorbed by the steel plate 9 in the middle or on both sides, resulting in the temperature of the bending part of the steel plate 9 not reaching the temperature for bending conditions when the steel plate 9 is bent, causing cracks in the bending part of the steel plate 9 and resulting in non-compliant products). This enables the steel plate to be bent better and reduces the problem of cracks in the steel plate 9 during bending. After heating the steel plate 9, move the U-shaped ceramic plates 61 away, and then start the pressing cylinder 72 on the U-shaped support plate 71 to drive the arc-shaped pressing block 13 to move downward, pressing the steel plate 9 into the U-shaped guide rail groove between the two arc-shaped platforms 22. During the process of the steel plate being pressed downward, the arc surface 26 of the platform facilitates the steel plate 9 to be pressed into the U-shaped guide rail groove. The steel plate 9 presses down the top plate 11, causing the movable rod of the ejecting hydraulic cylinder 10 to contract. When the steel plate 9 moves to the bottom of the U-shaped bottom 28, the top plate 11 moves into the square opening 25 and is flush with the square opening 25.The vertical wall 23 in the U-shaped groove shapes the steel plate 9 at the U-shaped bottom 28, so that the steel plate 9 is bent into a U-shaped guide rail. When the steel plate 9 is shaped, the movable end of the downward pressure cylinder 72 drives the arc-shaped pressing block 73 to move upward out of the mold bottom groove 21. At this time, the movable rod of the ejection hydraulic cylinder 10 loses the extrusion, thereby driving the ejector plate 11 to move upward, ejecting the shaped steel plate 9 to the top of the mold bottom groove 21, and then the U-shaped support plate 82 of the steel plate transfer assembly 8 moves the steel plate 9 to the collection table 12 for subsequent processing.

[0022] The corner near the top on one adjacent side of the two arc-shaped platforms 22 is a platform arc surface 26, and the side wall of the top wall arc-shaped platform 22 between the platform arc surface 26 and the U-shaped bottom 28 is a vertical wall 23. The vertical wall 23 and the U-shaped bottom 28 form a U-shaped guide groove, and the corner of the inner wall adjacent to the top of the mold bottom groove 21 is a notch arc surface 27.

[0023] The curvature of the platform arc surface 26 makes it easy for the steel plate 9 to slide into the U-shaped guide groove along the platform arc surface 26 when being pressed down. The curvature of the notch arc surface 27 makes it easy for the steel plate 9 to smoothly fall into the top of the arc-shaped platform 22 when being placed into the mold bottom groove 21. When the downward pressing cylinder 72 drives the arc-shaped pressing block 73 to move downward to press the steel plate 9, the two ends of the steel plate 9 are continuously squeezed, making it easier for the middle part of the steel plate 9 to be pressed into the U-shaped guide groove.

[0024] The steel plate displacement mechanism 3 includes two support frames 31, two first bidirectional motors 32, two first threaded rods 33, two first support plates 35, a connecting plate 34, two fixed blocks 36 and a fixed rod 37. The two support legs at one end of the two support frames 31 are respectively fixedly connected to the top wall of the base 1 near the two sides, and the two support legs on the same side are respectively located between the bottom groove 21 of the mold on the same side and the support wall of the U-shaped support plate 71. The support legs at the other ends of the two support frames 31 extend toward the front end of the base 1 and are fixedly connected to the ground. The two first support plates 35 are respectively fixedly connected to the top wall of the support frame 31 above the base 1 near the end, and the two first bidirectional motors 32 are respectively fixedly connected to the top wall of the other end support frame 31 near the end. One end of the two first threaded rods 33 is fixedly connected to the output end of the corresponding first bidirectional motor 32 and the other end is fixedly sleeved with a bearing, which is embedded in the rear side wall of the corresponding first support plate 35. The first threaded rod 33 on the same side passes through the connecting plate 34 at a position close to the side of the connecting plate 34 and is threadedly connected to the connecting plate 34. The two fixing blocks 36 are fixedly connected to the outer side of the top plate of the leftmost support frame 31 near the two ends. The fixing rod 37 is arranged between the two fixing blocks 36 and the two ends of the fixing rod 37 are fixedly connected to the corresponding fixing blocks 36. The outer wall of the fixing rod 37 near the rear end is sleeved with a rear wire 38. One end of the wire 38 passes through the first support plate 35 and is electrically connected to the descending cylinder 52 and the clamping cylinder 56 respectively. The wire 38 is The other end of 8 is connected to an external power supply. The steel plate clamping mechanism 5 includes a connecting seat 51, two descending cylinders 52, two L-shaped clamping plates 53, a mounting seat 55, four clamping cylinders 56, a bearing plate 57, two limit rods 58 and a placement plate 59. The top wall of the connecting seat 51 is fixedly connected to the middle position of the bottom wall of the connecting plate 34, the bottom wall of the connecting seat 51 is fixedly connected to the top wall of the placement plate 59, the fixed walls of the two descending cylinders 52 are respectively fixedly connected to the middle position of the bottom wall of the placement plate 59 and the two descending cylinders 52 are symmetrically arranged, the movable rods of the two descending cylinders 52 are respectively fixedly connected to the top wall of the bearing plate 57, one end of the two limit rods 58 are respectively fixedly connected to the middle position of the top wall of the bearing plate 57 on both sides, and the other ends of the two limit rods 58 are respectively The mounting plate 59 is penetrated and slidably connected to the mounting plate 59. The top wall of the mounting seat 55 is fixedly connected to the bottom wall of the load-bearing plate 57. Four clamping cylinders 56 are embedded in a group of two and are horizontally symmetrically arranged on both sides of the mounting seat 55. Two L-shaped clamping plates 53 are symmetrically arranged on both sides of the mounting seat 55. The movable rod ends of the two clamping cylinders 56 on the same side are respectively fixedly connected to the connecting walls of the L-shaped clamping plates 53. Rubber pads 54 are provided on the placement walls of the two L-shaped clamping plates 53. The steel plate conveying assembly 4 includes a fixed seat 41, two roller conveyor belts 44, two blocks 45 and two fixing mechanisms. The two roller conveyor belts 44 are respectively arranged on the top wall of the fixed seat 41 near the two sides and the conveying wheels of the two roller conveyor belts 44 are higher than the top of the roller frame of the conveyor belt.One end of the two roller conveyors 44 is located between the base 1 and the support leg of the support frame 31 extending outward, and the two roller conveyors 44 are located below the clamping mechanism. Two stoppers 45 are respectively fixedly connected to the roller frames on the adjacent sides of the two roller conveyors 44 near the top wall, and the two stoppers 45 extend above the roller frames. Two fixing mechanisms are symmetrically arranged at the outermost roller frames of the two roller conveyors 44 near the upper left corner. The fixing mechanism fixes the cylinder 42, the limit plate 43 and the L-shaped fixed plate 46. The connecting wall of the L-shaped fixed plate 46 is fixedly connected to the roller frame. The fixed end of the fixed cylinder 42 is fixedly connected to the fixed wall of the L-shaped fixed plate 46. The movable end of the fixed cylinder 42 is fixedly connected to one side of the limit plate 43. The limit plate 43 is located above the roller conveyors 44.

[0025] The staff places the two ends of the steel plate 9 on the two roller conveyor belts 44 respectively, and the fixed seat 41 (a sensor is provided on the top of the fixed seat 41, and the roller conveyor belt 44 stops working after the sensor detects that the steel plate 9 reaches the preset position) supports and fixes the roller conveyor belt 44. When the steel plate 9 moves to the waiting area close to one end of the roller conveyor belt 44, the roller conveyor belt 44 stops working, and the two stoppers 45 will block and limit the steel plate 9 to prevent the steel plate 9 from sliding. At this time, the fixed cylinder 42 on the L-shaped fixed plate 46 is started again to drive the limit plates 43 on both sides to move toward the middle, clamp and fix the steel plate 9 to prevent the steel plate 9 from moving, and complete the positioning of the steel plate 9. At this time, the two first bidirectional motors 32 are started again. The two first threaded rods 33 are rotated synchronously, and the two first threaded rods 33 are limited by the two first threaded rods 33, and the connecting plate 34 is threadedly connected to the first threaded rods 33. When the two first threaded rods 33 rotate synchronously, the connecting plate 34 will be driven to move horizontally on the first threaded rods 33, and the first support plate 35 provides stable support for the first threaded rods 33. The movement of the connecting plate 34 drives the steel plate clamping mechanism 5 (the moving position of the steel plate clamping mechanism 5 is set in advance, and the set position is the position of the steel plate 9 in the waiting area on the steel plate conveying assembly 4 and the position directly above the mold bottom groove 21) to move. When the steel plate clamping mechanism 5 moves to the top of the steel plate 9, the descending cylinder 52 is started (the descending cylinder 52 and the clamping The cylinder 56 is powered by an external power supply through the wire 38. The wire 38 is wound around the fixing rod 37. The wire 38 slides on the fixing rod 37 as the descending cylinder 52 and the clamping cylinder 56 move. The length of the wire 38 is determined according to the actual moving distance. The fixing block 36 fixes the fixing rod 37) and drives the load-bearing plate 57 to descend, thereby driving the L-shaped clamping plate 53 to descend. The limiting rod 58 limits the load-bearing plate 57 to prevent it from shifting during movement. When the placement wall of the L-shaped clamping plate 53 moves below the descending steel plate 9, the clamping cylinder 56 is started to drive the two L-shaped clamping plates 53 to move toward the middle, so that the L-shaped clamping plate 53 can be placed on the rubber pad 54 (one side of the rubber pad 54) of the placement wall of the L-shaped clamping plate 53 On the other hand, the outer wall of the steel plate 9 can be protected to prevent it from being scratched, and on the other hand, the friction can be increased to prevent the steel plate 9 from sliding). The middle position of the steel plate 9 is clamped and clamped tightly, and then the descending cylinder 52 is started to lift the L-shaped clamping plate 53 to a height higher than the mold bottom groove 21, and then the first bidirectional motor 32 is started to reverse, driving the connecting plate 34 to move, so that the steel plate 9 moves to the top of the mold bottom groove 21 and aligns with the mold bottom groove 21, and then the descending cylinder 52 is started again to move the L-shaped clamping plate 53 downward, and the steel plate 9 is placed between the top walls of the two arc-shaped platforms 22 in the mold bottom groove 21. The placement of the steel plate 9 is completed, and the placement plate 59 fixes the descending cylinder 52, and the connecting seat 51 fixes the placement plate 59.

[0026] The steel plate transfer assembly 8 includes two half-clamping assemblies and the two half-clamping assemblies are symmetrically arranged above the base 1 and extend to the rear end of the base 1. The half-clamping assembly includes a fixing frame 81, a U-shaped support plate 82, a limit groove 83, a second bidirectional motor 84, a second threaded rod 85, an inverted U-shaped gear lever 86, a T-shaped slider 87, a second support plate 88 and a connecting rod 89. The support leg at one end of the fixing frame 81 is fixedly connected to the top wall of the base 1 near the front end and the support leg on the same side is located on the same side of the base 1 and the support frame 3 1, the other end of the fixing frame 81 extends to the rear end of the base 1 and is fixedly connected to the ground, the fixing frame 81 is located above the U-shaped ceramic plate 61, the second support plate 88 is fixedly connected to the top wall of the fixing frame 81 above the base 1 near one end, the second bidirectional motor 84 is symmetrically arranged on the top wall of the fixing frame 81 near one end away from the base 1, the limiting groove 83 is arranged on the top wall of the fixing frame 81, the T-shaped slider 87 is arranged above the fixing frame 81, the sliding wall of the T-shaped slider 87 matches the limiting groove 83 and slides The second threaded rod 85 is dynamically connected, one end of the second threaded rod 85 is fixedly connected to the output end of the second bidirectional motor 84 and the other end is fixedly sleeved with a bearing, the bearing is embedded in the side wall of the second support plate 88, the second threaded rod 85 passes through the T-shaped slider 87 and is threadedly connected to the T-shaped slider 87, one end of the connecting rod 89 is fixedly connected to the inner side of the T-shaped slider 87, and the other end of the connecting rod 89 is fixedly connected to the connecting wall of the U-shaped support plate 82, and the top of the U-shaped support plate 82 is provided with anti-slip grooves at equal intervals, and the gear portion of the U-shaped gear lever 86 is located close to the The lever portion of the C-shaped lever 86 above the two fixing frames 81 near one end of the second bidirectional motor 84 is higher than the C-shaped support plate 82 and lower than the side of the ejected steel plate 9, and the two connecting walls of the C-shaped lever 86 are respectively fixedly connected to the outer side walls of the corresponding top plates of the fixing frames 81, and the rear end of the placement wall of the C-shaped support plate 82 is fixedly connected with an inclined sliding inclined plate 821, and a collecting platform 12 is provided between the two half-clamping components at one end extending from the base 1, and the lowest end of the sliding inclined plate 821 is located above the collecting platform 12.

[0027] When the shaped steel plate 9 is pushed out to the top of the mold bottom groove 21, the second bidirectional motor 84 is started to rotate synchronously to drive the second threaded rod 85 to rotate synchronously. Since the T-shaped slider 87 is limited by the limiting groove 83 and is threadedly connected with the second threaded rod 85 and the T-shaped slider 87, when the second threaded rod 85 rotates synchronously, the T-shaped slider 87 will move horizontally along the second threaded rod 85. When the connecting wall of the U-shaped support plate 82 moves to the side of the steel plate 9, the placement wall of the U-shaped support plate 82 is at the bottom of the steel plate 9. At the bottom, the telescopic end of the ejection hydraulic cylinder 10 is controlled to shrink, and the steel plate 9 is lowered so that its bottom rests on the placement wall of the C-shaped support plate 82, and then the second bidirectional motor 84 is started to reverse, so that the C-shaped support plate 82 drives the steel plate 9 to move to the collection table 12. When the vertical side wall of the steel plate 9 touches the C-shaped gear rod 86, the C-shaped gear rod 86 blocks the steel plate 9, so that the bottom of the steel plate 9 slides along the sliding inclined plate 821 to the collection table 12, which is convenient for the staff to collect or transfer to the next processing link for processing.

[0028] The butt end of the U-shaped coil 62 connected to the negative electrode wire is provided with a butt groove 622 , and the butt end of the U-shaped coil 62 connected to the positive electrode wire is provided with a butt joint 621 matching the butt groove 622 , and the end of the butt joint 621 is round.

[0029] When the U-shaped ceramic plates 61 on both sides are butt-jointed, the butt joint 621 (the head of the butt joint 621 is a round head, which is convenient for inserting the butt joint 621 into the butt joint groove 622 for butt joint) of the butt end of the U-shaped coil 62 connected to the positive electrode wire is inserted into the butt joint groove 622 of the butt end connected to the negative electrode wire, and the two U-shaped coils 62 are butt-jointed to form five groups of heating coils to heat the steel plate 9.

[0030] The above-mentioned guide rail bending processing equipment is used for processing, and the specific process steps are as follows: S1: The staff symmetrically places the two ends of the steel plate 9 on two roller conveyor belts 44, and starts the roller conveyor belt 44 through the controller to move the steel plate 9 to the waiting area and then stops running, and then the limit plate 43 performs one-step positioning; S2: Start the steel plate displacement mechanism 3 through the control panel, the connecting plate 34 drives the steel plate clamping mechanism 5 to move to the top of the steel plate 9, and then start the steel plate clamping mechanism 5, so that the L-shaped clamping plate 53 moves down and the steel plate 9 is placed on the placement wall of the L-shaped clamping plate 53. After the L-shaped clamping plate 53 clamps and tightens the steel plate 9, the steel plate clamping mechanism 5 moves up again, and the steel plate displacement mechanism 3 moves the steel plate 9 to the top of the opening of the mold bottom groove 21. The steel plate clamping mechanism 5 moves down again to place the steel plate 9 on the top walls of the two arc-shaped platforms 22 in the mold bottom groove 21. After placement, the steel plate clamping mechanism 5 is removed; S3: Start the docking cylinder 63 through the controller, so that the two U-shaped ceramic plates 61 drive the U-shaped coils 62 on both sides to move closer to the middle for docking. After the U-shaped coils 62 on both sides are docked, five groups of heating coils sleeved outside the steel plate 9 are formed. Each group of U-shaped coils 62 corresponds to a position on the steel plate 9. The heating temperature of the two outermost groups of U-shaped coils 62 is 400 - 450 degrees, the heating temperature of the middle group of U-shaped coils 62 is 400 - 450 degrees, and the heating temperature of the two groups of U-shaped coils 62 at the bending part of the steel plate 9 is 600 - 750 degrees, realizing simultaneous heating of five parts of the steel plate 9. After the steel plate 9 is heated, remove the U-shaped ceramic plate 61, start the pressing cylinder 72 through the controller to drive the arc-shaped pressing block 73 to move downward to press the steel plate 9. At this time, the ejecting hydraulic cylinder 10 receives pressure and contracts. During the downward pressing of the steel plate 9, both ends of the upper steel plate 9 resting on the arc-shaped platform 22 are continuously stressed. When the steel plate 9 is completely pressed into the mold groove, the arc-shaped pressing block 73 stays for 2 - 5 seconds and then is removed. At this time, control the ejecting hydraulic cylinder 10 to slowly push the top plate 11 upward, so that the shaped steel plate 9 is ejected to the waiting transfer area above the bottom mold groove 21; S4: Start the steel plate transfer component 8, so that the two U-shaped support plates 82 move towards the shaped steel plate 9. When the two U-shaped support plates 82 move below the steel plate 9, control the movable rod of the ejecting hydraulic cylinder 10 to contract, so that the steel plate 9 moves downward. Both sides of the steel plate 9 just rest on the placement walls of the two U-shaped support plates 82. Then control the second bidirectional motor 84 to reverse, so that the U-shaped support plates 82 move the steel plate 9 away. When the steel plate 9 touches the U-shaped stop rod 86, the steel plate 9 slides from the U-shaped support plates 82 onto the collection table 12, and subsequent processing of the shaped steel plate 9 can be carried out.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A guide rail bending processing equipment, characterized in that: It includes a hot pressing die groove assembly (2), a heating coil assembly (6), an upper die hot pressing assembly (7), a steel plate conveying assembly (4), a steel plate transfer assembly (8), a steel plate clamping and moving assembly, and a steel plate (9); The hot pressing die groove assembly (2) includes a die bottom groove (21) and an ejection structure. A base (1) is fixedly connected to the bottom of the die bottom groove (21). The bottom of the die bottom groove (21) is a U-shaped bottom (28). Arc-shaped platforms (22) are symmetrically arranged at the front and rear ends of the inner opening position of the die bottom groove (21). The two ends of the steel plate (9) are respectively placed on the tops of the corresponding arc-shaped platforms (22). Square notches (24) are provided near the top ends of the left and right side walls of the die bottom groove (21). The ejection structure includes two ejection hydraulic cylinders (10) and a top plate (11). The two ejection hydraulic cylinders (10) are embedded and vertically symmetrically arranged in the base (1) below the die bottom groove (21), and the top plate (11) is fixed between the end parts of the expansion rods of the two ejection hydraulic cylinders (10). The U-shaped bottom (28) is provided with a square opening (25), and the top plate (11) matches the square opening (25); The heating coil assembly (6) includes two groups and is symmetrically arranged outside the position of the square notch (24). The heating coil assembly (6) includes a horizontally placed and inward-facing U-shaped ceramic plate (61), five groups of half heating coil groups are clamped inside the U-shaped ceramic plate (61), a mounting plate (65), and a docking cylinder (63). The bottom end of the mounting plate (65) is fixed on the base (1). The docking cylinder (63) is fixedly connected to the middle position of the upper half of the mounting plate (65), and the docking cylinder (63) is horizontally arranged. Two limiting slide rods (64) are respectively arranged on both sides of the docking cylinder (63) in the upper half of the mounting plate (65), and the limiting slide rods (64) movably penetrate through the mounting plate (65). The end part of the cylinder rod of the docking cylinder (63) is fixed at the middle position of the back surface of the U-shaped ceramic plate (61). The end parts of the four limiting slide rods (64) are fixed at the positions near the four corners of the back surface of the U-shaped ceramic plate (61). The half heating coil group includes a plurality of U-shaped coils (62) arranged side by side. The upper side of the U-shaped coil (62) is arc-shaped and bent towards one side, and the lower side is arc-shaped and bent towards the other side. The segments of the U-shaped coil (62) at both ends are perpendicular to the side wall of the die bottom groove (21). The U-shaped coils (62) in the opposite two groups of half heating coil groups are sequentially docked to sleeved-heat the steel plate (9). The leftmost U-shaped coil (62) in one of the opposite two groups of half heating coil groups is connected with a positive electrode wire, and the rightmost U-shaped coil (62) in the other group is connected with a negative electrode wire. The positive electrode wire and the negative electrode wire of the U-shaped coil (62) respectively penetrate out from the top of the corresponding U-shaped ceramic plate (61); The upper mold hot pressing assembly (7) is arranged above the opening of the mold bottom groove (21), and the upper mold hot pressing assembly (7) includes an inverted U-shaped support plate (71), two downward pressing cylinders (72) and an arc-shaped pressing block (73) whose bottom matches the U-shaped bottom (28). The two supporting walls of the U-shaped support plate (71) are respectively fixedly connected to the middle positions on both sides of the top wall of the base (1), and the two downward pressing cylinders (72) are symmetrically arranged. The fixed ends of the two downward pressing cylinders (72) are fixedly connected to the middle position of the bottom of the fixed wall of the U-shaped support plate (71), and the movable rod ends of the two downward pressing cylinders (72) are fixedly connected to the top of the arc-shaped pressing block (73), and the arc-shaped pressing block (73) faces downward to the notch of the mold bottom groove (21).

2. The steel plate clamping moving assembly comprises a steel plate displacement mechanism (3) and a steel plate clamping mechanism (5), one end of the moving mechanism is arranged above the mold bottom groove (21) and below the position of the upper mold hot pressing assembly (7), the other end of the moving mechanism extends to the front end of the base (1), the clamping mechanism is arranged below the moving mechanism, one end of the steel plate conveying assembly (4) is arranged below the clamping mechanism, and one end of the steel plate transfer assembly (8) is arranged above the mold bottom groove (21) and the other end extends to the rear end of the base (1).

3. The guide rail bending processing equipment according to claim 1, characterized in that: The corners near the tops of the two arc-shaped platforms (22) on one side adjacent to each other are platform arc surfaces (26), the side walls of the top wall arc-shaped platforms (22) between the platform arc surfaces (26) and the U-shaped bottom (28) are vertical walls (23), the vertical walls (23) and the U-shaped bottom (28) form a U-shaped guide groove, and the corners of the inner side walls adjacent to the top of the mold bottom groove (21) are notch arc surfaces (27).

4. The guide rail bending processing equipment according to claim 1, characterized in that: The steel plate displacement mechanism (3) comprises two support frames (31), two first bidirectional motors (32), two first threaded rods (33), two first support plates (35), a connecting plate (34), two fixed blocks (36) and a fixed rod (37), wherein two support legs at one end of the two support frames (31) are respectively fixedly connected to the top wall of the base (1) near the two sides and the two support legs on the same side are respectively located between the mold bottom groove (21) and the support wall of the U-shaped support plate (71) on the same side, the support legs at the other end of the two support frames (31) respectively extend toward the front end of the base (1) and are fixedly connected to the ground, the two first support plates (35) are respectively fixedly connected to the top wall of the support frame (31) above the base (1) near the end, the two first bidirectional motors (32) are respectively fixedly connected to the top wall of the other end of the support frame (31) near the end, and the two first threaded rods (37) are respectively fixedly connected to the top wall of the other end of the support frame (31) near the end. 3) are fixedly connected to the output end of the corresponding first bidirectional motor (32) at one end and the other end is fixedly sleeved with a bearing, the bearing is embedded in the rear side wall of the corresponding first support plate (35), the first threaded rod (33) on the same side passes through the connecting plate (34) at a position close to the side of the connecting plate (34) and is threadedly connected to the connecting plate (34), the two fixed blocks (36) are respectively fixedly connected to the outer side of the top plate of the leftmost support frame (31) near the two ends, the fixed rod (37) is arranged between the two fixed blocks (36) and the two ends of the fixed rod (37) are respectively fixedly connected to the corresponding fixed blocks (36), the outer wall of the fixed rod (37) near the rear end is sleeved with a rear wire (38), one end of the wire (38) passes through the first support plate (35) and is respectively electrically connected to the descending cylinder (52) and the clamping cylinder (56), and the other end of the wire (38) is connected to an external power supply.

5. The guide rail bending processing equipment according to claim 1, characterized in that: The steel plate clamping mechanism (5) comprises a connecting seat (51), two descending cylinders (52), two L-shaped clamping plates (53), a mounting seat (55), four clamping cylinders (56), a load-bearing plate (57), two limit rods (58) and a placement plate (59), wherein the top wall of the connecting seat (51) is fixedly connected to the middle position of the bottom wall of the connecting plate (34), the bottom wall of the connecting seat (51) is fixedly connected to the top wall of the placement plate (59), the fixed walls of the two descending cylinders (52) are respectively fixedly connected to the middle position of the bottom wall of the placement plate (59) and the two descending cylinders (52) are symmetrically arranged, the movable rods of the two descending cylinders (52) are respectively fixedly connected to the top wall of the load-bearing plate (57), and the two One end of the limit rod (58) is fixedly connected to the middle position of the top wall of the load-bearing plate (57) on both sides, and the other ends of the two limit rods (58) respectively penetrate the placement plate (59) and are slidably connected to the placement plate (59). The top wall of the mounting seat (55) is fixedly connected to the bottom wall of the load-bearing plate (57). The four clamping cylinders (56) are embedded in a group of two and are horizontally symmetrically arranged on both sides of the mounting seat (55). The two L-shaped clamping plates (53) are symmetrically arranged on both sides of the mounting seat (55). The movable rod ends of the two clamping cylinders (56) on the same side are fixedly connected to the connecting walls of the L-shaped clamping plates (53), and rubber pads (54) are provided on the placement walls of the two L-shaped clamping plates (53).

6. The guide rail bending processing equipment according to claim 1, characterized in that: The steel plate conveying assembly (4) comprises a fixed seat (41), two roller conveyor belts (44), two stoppers (45) and two fixing mechanisms, wherein the two roller conveyor belts (44) are respectively arranged at positions close to both sides of the top wall of the fixed seat (41), and the conveying wheels of the two roller conveyor belts (44) are higher than the top of the roller frame of the conveyor belts, one end of the two roller conveyor belts (44) is located between the base (1) and the support legs of the support frame (31) extending outward, and the two roller conveyor belts (44) are located below the clamping mechanism, and the two stoppers (45) are respectively fixedly connected to the rollers of the two roller conveyor belts (44) on one side adjacent to each other. The wheel frame is close to the top wall position and the two stoppers (45) extend upward from the roller frame. The two fixing mechanisms are symmetrically arranged at the outermost roller frames of the two roller conveyors (44) near the upper left corner. The fixing mechanisms fix the cylinder (42), the limit plate (43) and the L-shaped fixed plate (46). The connecting wall of the L-shaped fixed plate (46) is fixedly connected to the roller frame. The fixed end of the fixed cylinder (42) is fixedly connected to the fixed wall of the L-shaped fixed plate (46). The movable end of the fixed cylinder (42) is fixedly connected to one side of the limit plate (43). The limit plate (43) is located above the roller conveyor (44).

7. The guide rail bending processing equipment according to claim 1, characterized in that: The steel plate transfer assembly (8) includes two semi-clamping assemblies which are symmetrically arranged above the base (1) and extend towards the rear end of the base (1). Each semi-clamping assembly includes a fixed frame (81), a U-shaped support plate (82), a limit groove (83), a second bidirectional motor (84), a second threaded rod (85), an inverted U-shaped stop rod (86), a T-shaped slider (87), a second support plate (88) and a connecting rod (89). One end of the support leg of the fixed frame (81) is fixedly connected to the top wall of the base (1) near the front end, and the support leg on the same side is located between the base (1) and the support frame (31) on the same side. The other end of the fixed frame (81) extends towards the rear end of the base (1) and is fixedly connected to the ground. The fixed frame (81) is located above the U-shaped ceramic plate (61). The second support plate (88) is fixedly connected to the top wall of the fixed frame (81) near one end above the base (1). The second bidirectional motors (84) are symmetrically arranged on the top wall of the fixed frame (81) far from the base (1) near one end. The limit groove (83) is arranged on the top wall of the fixed frame (81). The T-shaped slider (87) is arranged above the fixed frame (81). The sliding wall of the T-shaped slider (87) matches the limit groove (83) and is slidably connected. One end of the second threaded rod (85) is fixedly connected to the output end of the second bidirectional motor (84), and the other end is fixedly sleeved with a bearing. The bearing is embedded in the side wall of the second support plate (88). The second threaded rod (85) penetrates through the T-shaped slider (87) and is threadedly connected to the T-shaped slider (87). One end of the connecting rod (89) is fixedly connected to the inner side of the T-shaped slider (87), and the other end of the connecting rod (89) is fixedly connected to the connecting wall of the U-shaped support plate (82). Anti-slip grooves are equidistantly arranged at the top of the placing wall of the U-shaped support plate (82). The stop rod part of the U-shaped stop rod (86) is located above the two fixed frames (81) near the end of the second bidirectional motor (84). The stop rod part of the U-shaped stop rod (86) is higher than the U-shaped support plate (82) and lower than the side of the ejected steel plate (9). The two connecting walls of the U-shaped stop rod (86) are respectively fixedly connected to the outer side walls of the top plates of the corresponding fixed frames (81). An inclined sliding plate (821) is fixedly connected to the rear end of the placing wall of the U-shaped support plate (82). A collection table (12) is arranged between the ends of the two semi-clamping assemblies extending out of the base (1). The lowest end of the inclined sliding plate (821) is located above the collection table (12).

8. The guide rail bending processing equipment according to claim 1, characterized in that: The butt end of the U-shaped coil (62) connected to the negative wire is provided with a docking groove (622). The butt end of the U-shaped coil (62) connected to the positive wire is provided with a docking head (621) that matches the docking groove (622), and the end of the docking head (621) is circular.

9. A guide rail bending process, characterized in that: Using the rail bending processing equipment described in any one of claims 1-7 for processing, the specific process steps are as follows: S1: The staff symmetrically place both ends of the steel plate (9) on two roller conveyors (44) respectively, start the roller conveyors (44) through the controller to move the steel plate (9) to the waiting area for picking and then stop running, and then perform further positioning by the limit plate (43); S2: Start the steel plate displacement mechanism (3) through the control panel. The connecting plate (34) drives the steel plate clamping mechanism (5) to move above the steel plate (9). Then start the steel plate clamping mechanism (5) to lower the L-shaped clamping plate (53) and place the steel plate (9) on the placement wall of the L-shaped clamping plate (53). After the L-shaped clamping plate (53) clamps the steel plate (9) tightly, the steel plate clamping mechanism (5) moves up again. The steel plate displacement mechanism (3) moves the steel plate (9) above the opening of the mold bottom groove (21). The steel plate clamping mechanism (5) moves down again to place the steel plate (9) on the top walls of the two arc-shaped platforms (22) in the mold bottom groove (21). After placement, move away the steel plate clamping mechanism (5); S3: Start the docking cylinder (63) through the controller to make the two U-shaped ceramic plates (61) drive the U-shaped coils (62) on both sides to move closer to each other in the middle for docking. After the U-shaped coils (62) on both sides are docked, five groups of heating coils sleeved outside the steel plate (9) are formed. Each group of U-shaped coils (62) corresponds to a position on the steel plate (9). The heating temperature of the two outermost groups of U-shaped coils (62) is 400 - 450 degrees, the heating temperature of the middle group of U-shaped coils (62) is 400 - 450 degrees, and the heating temperature of the two groups of U-shaped coils (62) at the bending part of the steel plate (9) is 600 - 750 degrees, realizing simultaneous heating of five parts of the steel plate (9). After the steel plate (9) is heated, move out the U-shaped ceramic plate (61). Start the pressing cylinder (72) through the controller to drive the arc-shaped pressing block (73) to move downward to press the steel plate (9). At this time, the ejecting hydraulic cylinder (10) contracts under pressure. During the downward pressing of the steel plate (9), both ends of the upper steel plate (9) resting on the arc-shaped platform (22) are continuously stressed. When the steel plate (9) is completely pressed into the mold groove, the arc-shaped pressing block (73) stays for 2 - 5 seconds and then moves out. At this time, control the ejecting hydraulic cylinder (10) to slowly push the top plate (11) upward to eject the shaped steel plate (9) to the waiting area above the mold bottom groove (21); S4: Start the steel plate transfer assembly (8) to make the two U-shaped supporting plates (82) move towards the shaped steel plate (9). When the two U-shaped supporting plates (82) move below the steel plate (9), control the movable rod of the ejecting hydraulic cylinder (10) to contract to lower the steel plate (9), and both sides of the steel plate (9) just rest on the placement walls of the two U-shaped supporting plates (82). Then control the second bidirectional motor (84) to reverse to make the U-shaped supporting plates (82) move away the steel plate (9). When the steel plate (9) touches the U-shaped stop rod (86), the steel plate (9) slides from the U-shaped supporting plate (82) onto the collection table (12), and then the subsequent processing of the shaped steel plate (9) can be carried out.

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