A bending equipment for angle steel production

Abstract

The present invention discloses a bending device for angle steel production, which relates to the technical field of angle steel processing, and includes an operating table, a stamping mechanism, and a detection unit. The operating table is equipped with a bending mechanism for bending the angle steel, and the bending mechanism includes two bending blocks and a power assembly for pushing the angle steel to bend. A stamping groove with a right-angled triangle cross section is provided at the center of the operating table. Two symmetrically distributed arc grooves are provided on the operating table with the right angle point of the stamping groove as the center of the circle. An arc slider is connected to the bottom of each bending block, and the two arc sliders are slidably connected to the two arc grooves respectively. The stamping mechanism is installed on the operating table for stamping before the angle steel is bent. The right-angle detection head provided by the present invention can perform right-angle detection on the stamping cutter and the angle steel bent part during the two processes of stamping and bending, which ensures product quality on the one hand and facilitates timely discovery of product problems and the cause of the problems on the other hand.

Description

Technical Field

[0001] The present invention relates to the technical field of angle steel processing, and in particular to a bending device for angle steel production. Background Art

[0002] Angle steel, commonly known as angle iron, is a long steel strip with two sides perpendicular to each other at an angle. At present, when producing 90° bending of angle steel, most of the methods adopted are to first punch a 90° V-mouth at the bend of the angle steel and then bend it. However, in this method, the stamping and bending of the angle steel are processed separately by two machines, which results in the angle steel needing to be moved to the bending machine for repositioning after stamping, which is not only inefficient but also affects the bending quality. In addition, in the existing bending processing, manual quality inspection is mostly performed on the first few workpieces, and quality inspection cannot be performed on each angle steel after bending, which will lead to unstable product quality. When problems with the machine or product cannot be discovered in time, the defective rate increases, resulting in labor-intensive and time-consuming problems. Therefore, a bending equipment for angle steel production is proposed. Summary of the Invention

[0003] The purpose of the present invention is to solve the problems in the prior art and to propose a bending device for angle steel production.

[0004] A bending device for angle steel production includes an operating table, a stamping mechanism and a detection unit. The operating table is equipped with a bending mechanism for bending the angle steel. The bending mechanism includes two bending blocks and a power assembly for pushing the angle steel to bend. A stamping groove with a right-angled triangle cross-section is provided at the center of the operating table. Two symmetrically distributed arc grooves are provided on the operating table with the right angle point of the stamping groove as the center of the circle. An arc slider is connected to the bottom of each bending block. The two arc sliders are respectively slidably connected to the two arc grooves. The stamping mechanism is installed on the operating table for stamping the angle steel before bending. The detection unit for detecting the angle steel is arranged on the operating table and is located directly below the stamping mechanism.

[0005] In the above-mentioned bending equipment for angle steel production, the power assembly includes a cylinder and a push plate, each of the bending blocks is provided with a placement groove, and the end of each bending block close to the stamping groove is a right-angled trapezoidal structure, the cylinder is installed on the operating table, and the push plate is connected to the piston end of the cylinder, and each bending block close to the cylinder is connected to a slide rail, and a slider is slidably connected to the slide rail, and two symmetrically distributed and parallel push rods are connected to the push plate, and the ends of the two push rods away from the push plate are respectively connected to the two sliders through pin shafts for rotation, and a threaded clamping structure is installed on the side of each bending block away from the slide rail, and a pressure plate is connected to the lifting block of each threaded clamping structure.

[0006] In the above-mentioned bending equipment for angle steel production, the stamping mechanism includes an L-shaped support seat and a hydraulic cylinder. The support seat is installed on the operating table and away from one end of the cylinder. The upper end of the support seat is connected to a mounting frame, and the hydraulic cylinder is installed on the mounting frame. The piston end of the hydraulic cylinder is coaxially connected to a threaded column. A through hole is opened on the support seat, and the lower end of the threaded column passes through the through hole and is connected to a stamping cutter with a right-angle structure.

[0007] The top end of the movable frame is connected with the movable frame, and the movable frame is meshed with the first gear and the second gear.

[0008] In the above-mentioned bending equipment for angle steel production, the bottom of the support seat is rotatably connected to a connecting shaft, the lower end of the connecting shaft extends to the top of the movable plate and is coaxially connected to a third gear, the upper end surface of the movable plate is connected to a second spur rack, the second spur rack is meshed with the third gear, the upper end of the connecting shaft is coaxially connected to a rope winding disk, the bottom of the support seat is coaxially rotatably connected to a turntable at the through hole, the turntable is threadedly connected to the threaded column, and the turntable and the rope winding disk are jointly connected to a pull rope.

[0009] In the above-mentioned bending equipment for angle steel production, a crack detection head is installed at the middle position of the push plate on one side of the push rod.

[0010] In the above-mentioned bending equipment for angle steel production, a clockwork spring is provided between the rope reel and the support seat.

[0011] Compared with the existing technology, the advantages of the present invention are:

[0012] 1. The present invention ensures that both sides of the angle steel are evenly stressed during bending, thereby ensuring the bending quality. There is no need to move the angle steel between the two processes of angle steel stamping and bending, which not only improves the bending processing efficiency but also avoids the inaccurate positioning of the bending point during movement.

[0013] 2. The right-angle detection head provided in the present invention can perform right-angle detection on the punching cutter and the angle steel bending part during the punching and bending processes respectively, which ensures product quality on the one hand and facilitates timely detection of product problems and finding the causes of the problems on the other hand.

[0014] 3. The various detection methods provided in the present invention greatly reduce the defective rate of angle steel after bending, and at the same time facilitate the discovery of production problems that occur during the bending of angle steel, so as to make targeted adjustments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of the first viewing angle in the present invention.

[0016] Figure 2 It is a structural schematic diagram of the second viewing angle in the present invention.

[0017] Figure 3 It is a cross-sectional view of the operating table part in the present invention.

[0018] Figure 4 It is a structural schematic diagram of the bending mechanism in the present invention.

[0019] Figure 5 It is a structural schematic diagram of the stamping mechanism in the present invention.

[0020] Figure 6 It is a cross-sectional view of the detection unit part in the present invention.

[0021] In the figure: 1 operating table, 2 bending mechanism, 21 punching groove, 22 arc groove, 23 bending block, 231 arc slider, 232 placement groove, 24 cylinder, 241 push plate, 242 slide rail, 243 slider, 244 push rod, 25 threaded clamping structure, 26 pressure plate, 3 punching mechanism, 31 support seat, 32 mounting frame, 33 hydraulic cylinder, 34 threaded column, 35 punching cutter, 4 detection unit, 41 fixed seat, 42 moving plate, 421 elastic expansion plate, 422 right-angle detection head, 43 cavity, 431 arc slide groove, 432 arc rack, 433 rotating shaft, 434 first gear, 435 second gear, 436 first straight rack, 44 connecting shaft, 441 third gear, 442 second straight rack, 45 rope reel, 46 rotating disk, 47 crack detection head. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] Reference Figure 1-6As shown, a bending equipment for angle steel production, an operating table 1, a stamping mechanism 3 and a detection unit 4, characterized in that: a bending mechanism 2 for bending the angle steel is installed on the operating table 1, the bending mechanism 2 includes two bending blocks 23 and a power component for pushing the angle steel to bend, a stamping groove 21 with a right-angled triangle cross-section is provided at the center position of the operating table 1, two symmetrically distributed arc grooves 22 are provided on the operating table 1 with the right angle point of the stamping groove 21 as the center of the circle, the bottom of each bending block 23 is connected to an arc slider 231, and the two arc sliders 231 are slidably connected to the two arc grooves 22 respectively, the stamping mechanism 3 is installed on the operating table 1 for stamping the angle steel before bending, and the detection unit 4 for detecting the angle steel is arranged on the operating table 1 and is located directly below the stamping mechanism 3.

[0024] The power assembly includes a cylinder 24 and a push plate 241. Each of the bending blocks 23 is provided with a placement groove 232. The end of each bending block 23 close to the stamping groove 21 is a right-angled trapezoidal structure. When the two bending blocks 23 are in the expanded state, the placement grooves 232 on the two bending blocks 232 will be connected and merged into a straight placement groove 232. The two bending blocks 23 together form a right-angle notch and fit with the stamping groove 21. The cylinder 24 is installed on the operating table 1, and the push plate 241 is connected to the piston end of the cylinder 24. The side of each bending block 23 close to the cylinder 24 is connected to the slide rail 2 42. A slider 243 is slidably connected to the slide rail 242. Two symmetrically distributed and parallel push rods 244 are connected to the push plate 241. The two push rods 244 are rotatably connected to the two sliders 243 at one end away from the push plate 241 through a pin shaft. A threaded clamping structure 25 is installed on the side of each bending block 23 away from the slide rail 242. A pressing plate 26 is connected to the lifting block of each threaded clamping structure 25. The shape of the pressing plate 26 is the same as that of the bending block 23. The stamping edges of the angle steel are in the same plane, which can reduce the deformation at the notch when the angle steel is stamped and improve the quality of the product after bending.

[0025] In this embodiment, the stamping mechanism includes an L-shaped support base 31 and a hydraulic cylinder 33. The support base 31 is installed on the operating table 1 and at one end away from the cylinder 24. The upper end of the support base 31 is connected to the mounting frame 32. The hydraulic cylinder 33 is installed on the mounting frame 32. The piston end of the hydraulic cylinder 33 is coaxially connected to a threaded column 34. A through hole is opened on the support base 31. The lower end of the threaded column 34 passes through the through hole and is connected to a stamping cutter 35 with a right-angle structure.

[0026] In this embodiment, the detection unit 4 includes a fixed seat 41 and a movable plate 42. The fixed seat 41 is installed on the operating table 1 and is located directly below the support seat 31. The movable plate 42 is slidably connected to the fixed seat 41. The movable plate 42 is provided with an elastic telescopic plate 421 on the side of the movable plate 42 close to the stamping groove 21. The front end of the elastic telescopic plate 421 is connected to a right-angle detection head 422. A cavity 43 is provided in the operating table 1 directly below the fixed seat 41. A rotating shaft 433 is rotatably connected in the cavity 43. The rotating shaft 433 is coaxial with the It is connected to a first gear 434, and an arc groove 431 is opened in the operating table 1 and is connected to the arc groove 22 on one side. An arc rack 432 is slidably connected in the arc groove 431, and the arc rack 432 is engaged with the first gear 434. One end of the arc rack 432 is connected to the arc slider 231. The upper end of the rotating shaft 433 extends to the bottom of the movable plate 42 and is coaxially connected to the second gear 435. The bottom of the movable plate 42 is connected to a first straight rack 436, and the first straight rack 436 is engaged with the second gear 435.

[0027] In this embodiment, the bottom of the support seat 31 is rotatably connected to a connecting shaft 44, the lower end of the connecting shaft 44 extends to the top of the movable plate 42 and is coaxially connected to the third gear 441, the upper end surface of the movable plate 42 is connected to a second straight rack 442, the second straight rack 442 is meshed with the third gear 441, the upper end of the connecting shaft 44 is coaxially connected to a rope winding drum 45, the bottom of the support seat 31 is coaxially rotatably connected to a turntable 46 located at the through hole, the turntable 46 is threadedly connected to the threaded column 34, the turntable 46 and the rope winding drum 45 are jointly connected to a pull rope, and a clockwork spring is provided between the rope winding drum 45 and the support seat 31 so that the rope winding drum 45 always has a winding tension on the pull rope.

[0028] A crack detection head 47 is installed in the middle position of the push plate 241 on one side of the push rod 244 to take pictures of the outer curved surface of the angle steel and perform crack analysis.

[0029] Working principle: When the present invention is in use, the cylinder 24 is in a retracted state, the two bending blocks 23 are parallel to each other so that the placement grooves 232 are in a straight line, and then one side of the angle steel is placed in the placement groove 232. When the position of the angle steel is adjusted, the bending point is located at the connection between the two bending blocks 23, and then the threaded clamping structure 25 is controlled to make the pressing plate 26 press down to fix the angle steel, and then the hydraulic cylinder 33 is turned on to push the punching cutter 35 to press down and cut a 90° V-shaped incision at the bend of the angle steel. After the punching cutter 35 retracts, the cylinder 24 is turned on to push the push plate 24. 1. The two bending blocks 23 slide along the arc groove 22, and the angle steel on the bending block 23 bends as the bending block rotates. When the two bending blocks 23 rotate 45 degrees to offset each other, the bending point of the angle steel is bent at 90 degrees, and at the same time, the two sides of the angle steel cut are fitted together. Since the bending block 23 moves at a constant speed, the force on both sides of the angle steel bending is evenly distributed, ensuring the bending quality. When the angle steel is stamped and bent, there is no need to move the angle steel, which not only improves the bending processing efficiency, but also avoids the situation where the bending point positioning is inaccurate during movement.

[0030] During the angle steel stamping process, when the hydraulic cylinder 33 pushes the stamping cutter 35 to descend, the threaded column 34 moves downward, which drives the turntable 46 to rotate. The rope is pulled to rotate the rope reel 45 and the connecting shaft 44. The engagement of the third gear 441 and the second spur rack 442 pushes the movable plate 42, so that the right-angle detection head 442 moves toward the inner blade surface of the stamping cutter 35. The right-angle detection head 442 is used to detect the right angle of the stamping cutter 35 to determine whether the stamping cutter has a deformation problem. Since the right-angle detection head 422 is connected to the elastic telescopic plate 421, the detection time and detection range of the right-angle detection head 442 and the stamping cutter 35 are increased, which is convenient for timely detection of the stamping cutter 35. To solve the problem, in order to avoid the increase of defective rate of bending caused by poor stamping of angle steel, after the stamping is completed, under the action of the spring, the rope reel 45 reels the rope and drives the third gear 441 to reverse, retracting the right-angle detection head 422. When bending, the arc-shaped slider 231 will push the arc-shaped rack 432 to engage with the first gear 434 when it moves, and the gear transmission will push the movable plate 42 to move again, so that the right-angle detection head 421 will be against the edge of the angle steel at the notch after bending, and the right angle detection of the angle steel after bending will be carried out to judge whether the notch is a right angle after bending and whether the two sides are of equal length. After the bending block 23 moves, the outer curved surface of the angle steel is exposed. At this time, the crack detection head on the push plate 241 will take a photo of the outer curved surface of the angle steel at the bending point for detection. Through a variety of detection methods, the defective rate of the angle steel after bending is greatly reduced, and problems can also be discovered and found in time.

[0031] It is understood from common technical knowledge that the present invention may be implemented by other embodiments that do not depart from its spirit or essential features. Therefore, the embodiments disclosed above are, in all respects, merely illustrative and not exclusive. All modifications within the scope of the present invention or equivalent to the scope of the present invention are intended to be encompassed by the present invention.

Claims

1. A bending device for angle steel production, comprising an operating table (1), a punching mechanism (3) and a detection unit (4), characterized in that: The operating table (1) is provided with a bending mechanism (2) for bending the angle steel, the bending mechanism (2) comprising two bending blocks (23) and a power assembly for pushing the angle steel to bend, a punching groove (21) with a right-angled triangle cross section is provided at the center of the operating table (1), two symmetrically distributed arc grooves (22) are provided on the operating table (1) with the right angle point of the punching groove (21) as the center of the circle, the bottom of each bending block (23) is connected with an arc slider (231), and the two arc sliders (231) are respectively slidably connected to the two arc grooves (22), the punching mechanism (3) is provided on the operating table (1) for punching the angle steel before bending, and the detection unit (4) for detecting the angle steel is provided on the operating table (1) and is located directly below the punching mechanism (3); The power assembly comprises a cylinder (24) and a push plate (241), wherein the cylinder (24) is mounted on the operating table (1), and the push plate (241) is connected to the piston end of the cylinder (24); The punching mechanism (3) comprises an L-shaped support base (31) and a hydraulic cylinder (33); the support base (31) is mounted on an end of the operating table (1) away from the cylinder (24); the upper end of the support base (31) is connected to a mounting frame (32); the hydraulic cylinder (33) is mounted on the mounting frame (32); the piston end of the hydraulic cylinder (33) is coaxially connected to a threaded column (34); a through hole is provided on the support base (31); the lower end of the threaded column (34) passes through the through hole and is connected to a punching cutter (35) with a right-angle structure; The detection unit (4) comprises a fixed seat (41) and a movable plate (42), wherein the fixed seat (41) is mounted on the operating table (1) and is located directly below the support seat (31), and the movable plate (42) is slidably connected to the fixed seat (41), and an elastic telescopic plate (421) is provided on a side of the movable plate (42) close to the punching groove (21), and a front end of the elastic telescopic plate (421) is connected to a right-angle detection head (422), and a cavity (43) is provided in the operating table (1) directly below the fixed seat (41), and a rotating shaft (433) is rotatably connected in the cavity (43), and a coaxially connected rotating shaft (433) is provided on the rotating shaft (433). A first gear (434) is connected to the operating table (1). A circular arc groove (431) is provided in the operating table (1) and is connected to the arc groove (22) on one side. An arc rack (432) is slidably connected in the circular arc groove (431). The arc rack (432) is meshed with the first gear (434). One end of the arc rack (432) is connected to the arc slider (231). The upper end of the rotating shaft (433) extends to the bottom of the movable plate (42) and is coaxially connected to the second gear (435). The bottom of the movable plate (42) is connected to a first straight rack (436). The first straight rack (436) is meshed with the second gear (435).

2. The bending equipment for angle steel production according to claim 1, characterized in that: Each of the bending blocks (23) is provided with a placement groove (232), and one end of each of the bending blocks (23) close to the stamping groove (21) is a right-angled trapezoidal structure. A side of each of the bending blocks (23) close to the cylinder (24) is connected to a slide rail (242), and a slider (243) is slidably connected to the slide rail (242). Two symmetrically distributed and mutually parallel push rods (244) are connected to the push plate (241), and one end of the two push rods (244) away from the push plate (241) is rotatably connected to the two sliders (243) through a pin shaft. A threaded material clamping structure (25) is installed on the side of each of the bending blocks (23) away from the slide rail (242), and a pressing plate (26) is connected to the lifting block of each of the threaded material clamping structures (25).

3. The bending equipment for angle steel production according to claim 1, characterized in that: The bottom of the support seat (31) is rotatably connected to a connecting shaft (44), the lower end of the connecting shaft (44) extends to the top of the movable plate (42) and is coaxially connected to a third gear (441), the upper end surface of the movable plate (42) is connected to a second spur rack (442), the second spur rack (442) is meshed with the third gear (441), the upper end of the connecting shaft (44) is coaxially connected to a rope reel (45), the bottom of the support seat (31) is coaxially rotatably connected to a turntable (46) located at the through hole, the turntable (46) is threadedly connected to the threaded column (34), and the turntable (46) and the rope reel (45) are commonly connected to a pull rope.

4. The bending equipment for angle steel production according to claim 2, characterized in that: The push plate (241) is provided with a crack detection head (47) at a middle position on one side of the push rod (244).

5. The bending equipment for angle steel production according to claim 3, characterized in that: A spring is provided between the rope reel (45) and the support seat (31).

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