Square tube bending machine

Abstract

The utility model discloses a square tube bending machine which comprises a workbench, a rotating assembly is arranged in the workbench, a fixing block is arranged on the upper side face of the rotating assembly, a first heat conduction layer is arranged on the circumferential side face of the fixing block, and a plurality of first heating rods are annularly inserted into the upper side face of the fixing block with the circle center of the upper side face of the fixing block as the center. The heating end of the first heating rod is inserted into the first heat conduction layer, a telescopic assembly is arranged on the upper side face of the fixing block, a bending block is arranged at the end, away from the fixing block, of the telescopic assembly, and a second heat conduction layer is arranged on the circumferential side face of the bending block. A plurality of second heating rods are annularly inserted into the upper side face of the bending block with the circle center of the bending block as the center, and the heating ends of the second heating rods are inserted into the second heat conduction layer. A clamping assembly located on one side of the fixing block is arranged on the upper side face of the workbench. A detection assembly is arranged on the lower side face of the telescopic assembly. The square tube has the advantage of preventing the square tube from being broken.

Description

Technical Field

[0001] This utility model belongs to the field of bending machine technology and relates to a square tube bending machine. Background Technology

[0002] A square tube bending machine is a device used to bend square tubes. It is widely used in industries such as construction, furniture, transportation, and machinery manufacturing. Square tube bending machines typically use mechanical or hydraulic force to apply external force to the square tube through a die, so that it achieves the desired bending shape.

[0003] Chinese utility model patent CN216540332U discloses a square tube bending machine with a bending angle marking structure. The machine includes a bending machine, a conveyor wheel rotatably connected below it, a square tube rotatably connected inside the conveyor wheel, a bending column fixedly connected to the upper middle surface of the bending machine, a sliding column slidably connected to the upper inside of the bending column, a sliding rod fixedly connected to the lower surface of the sliding column, a tension spring slidably connected to the outer side of the sliding rod, and a connecting rod fixedly connected to the upper surface of the sliding column. This technical solution uses a circular scale to measure the angle of the square tube during bending, allowing operators to more intuitively observe the bending angle. However, this technical solution may result in the square tube breaking during bending, rendering it unusable. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a square tube bending machine, which effectively solves the problems in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a square tube bending machine includes a workbench, a rotating assembly is provided inside the workbench, a fixed block is provided on the upper side of the rotating assembly, a first heat-conducting layer is provided on the circumferential side of the fixed block, a plurality of first heating rods are inserted in a ring around the center of the upper side of the fixed block, the heating ends of the first heating rods are inserted into the first heat-conducting layer, a telescopic assembly is provided on the upper side of the fixed block, a bending block is provided at the end of the telescopic assembly away from the fixed block, a second heat-conducting layer is provided on the circumferential side of the bending block, a plurality of second heating rods are inserted in a ring around the center of the bending block, the heating ends of the second heating rods are inserted into the second heat-conducting layer, and the second heat-conducting layer and the first heat-conducting layer are in contact with the side of the square tube;

[0006] A clamping assembly located on one side of the fixing block is provided on the side of the worktable.

[0007] The lower side of the telescopic component is provided with a detection component for detecting the temperature of the square tube.

[0008] Furthermore, the rotating assembly includes a rotating seat rotatably connected to the side of the worktable and a torsion motor disposed on the lower side of the worktable. The output shaft of the torsion motor passes through the worktable and is connected to the rotating seat. The lower side of the fixed block is fixedly connected to the upper side of the rotating seat.

[0009] Furthermore, the telescopic component includes a connecting block disposed on the upper side of the fixed block and a telescopic block slidably connected to the end of the connecting block away from the fixed block. The end of the telescopic block away from the connecting block is connected to the upper side of the bending block. The upper side of the telescopic block has multiple fixing holes linearly opened. The upper side of the connecting block is threaded with multiple fixing bolts. The lower end of the fixing bolts passes through the connecting block and is threaded into the fixing holes.

[0010] Furthermore, the clamping assembly includes a fixed clamping plate disposed on the side of the workbench, a clamping plate groove on the left side of the fixed clamping plate located on the workbench, a movable clamping plate slidably connected in the clamping plate groove, and screw mounting plates located on the lower side of the workbench at both ends of the clamping plate groove, with a screw rotatably connected between the two screw mounting plates, the lower end of the movable clamping plate being threaded onto the screw, and a rotating handle rotatably connected to the side of the screw mounting plate near the left side of the workbench, one end of the rotating handle passing through the screw mounting plate and connected to the screw.

[0011] Furthermore, rubber pads are provided on the inner sides of both the movable clamping plate and the fixed clamping plate.

[0012] Furthermore, the detection component includes an infrared thermometer disposed on the lower side of the connecting block and a display screen disposed on the upper side of the connecting block. The infrared thermometer is located directly above the square tube, and the infrared thermometer is electrically connected to the display screen.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This invention achieves heating and softening of the square tube bending section through a first heat-conducting layer, a first heating rod, a second heat-conducting layer, and a second heating rod, preventing the square tube from breaking during bending and improving the reliability of the square tube bending machine. The clamping component secures the square tube, preventing it from moving during bending. The detection component detects the temperature of the square tube, improving the convenience for operators to control the heating temperature of the square tube. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This utility model Figure 1 A schematic diagram of the clamping assembly;

[0017] Figure 3This is a top view of the present invention.

[0018] In the diagram: 1. Workbench; 101. Clamping plate groove; 2. Torsion motor; 3. Rotary seat; 4. Fixing block; 5. First heat-conducting layer; 6. First heating rod; 7. Connecting block; 8. Telescopic block; 801. Fixing hole; 9. Bending block; 10. Second heat-conducting layer; 11. Second heating rod; 12. Infrared thermometer; 13. Display screen; 14. Square tube; 15. Fixing bolt; 16. Fixing clamping plate; 17. Movable clamping plate; 18. Lead screw mounting plate; 19. Lead screw; 20. Rotating handle; 21. Rubber pad. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figure 1 , Figure 2 , Figure 3 As shown, a square tube bending machine includes a workbench 1, a rotating assembly inside the workbench 1, a fixed block 4 on the upper side of the rotating assembly, a first heat-conducting layer 5 on the circumferential side of the fixed block 4, a plurality of first heating rods 6 are inserted in a ring around the center of the upper side of the fixed block 4, the heating ends of the first heating rods 6 are inserted into the first heat-conducting layer 5, a telescopic assembly is provided on the upper side of the fixed block 4, a bending block 9 is provided at the end of the telescopic assembly away from the fixed block 4, a second heat-conducting layer 10 is provided on the circumferential side of the bending block 9, a plurality of second heating rods 11 are inserted in a ring around the center of the bending block 9, the heating ends of the second heating rods 11 are inserted into the second heat-conducting layer 10, and the second heat-conducting layer 10 and the first heat-conducting layer 5 are in contact with the side of the square tube 14.

[0021] A clamping assembly located on one side of the fixed block 4 is provided on the upper side of the worktable 1;

[0022] A detection component for detecting the temperature of square tube 14 is provided on the lower side of the telescopic assembly.

[0023] In use, the operator places the square tube 14 to be bent on the side of the workbench 1, and makes the side of the square tube 14 contact the side of the first heat-conducting layer 5. Then, the operator fixes the square tube 14 with the clamping assembly and adjusts the position of the bending block 9 with the telescopic assembly so that the second heat-conducting layer 10 inside the bending block 9 contacts the other side of the square tube 14. Then, the operator starts the first heating rod 6 and the second heating rod 11 to heat the square tube 14 under the action of the first heat-conducting layer 5 and the second heat-conducting layer 10, so that the part of the square tube 14 to be bent is heated and softened. Then, the operator drives the fixing block 4 and the bending block 9 to rotate by the rotating assembly. While the bending block 9 is rotating, it pushes the square tube 14 to bend. By heating and softening, the risk of the square tube 14 breaking during bending is reduced, and the reliability and safety of the square tube bending machine when bending the square tube 14 are improved.

[0024] In this embodiment, the rotating assembly includes a rotating seat 3 rotatably connected to the upper side of the workbench 1 via bearings, a reducer 22 bolted to the lower side of the workbench 1, and a torsion motor 2 bolted to the lower side of the reducer. The output shaft of the torsion motor 2 is connected to the input end of the reducer 22, and the output end of the reducer 22 passes through the workbench 1 and is connected to the rotating seat 3. The lower side of the fixing block 4 is fixedly connected to the upper side of the rotating seat 3 via bolts. In use, the torsion motor 2 can drive the rotating seat 3 to rotate, and the rotating seat 3 drives the fixing block 4 and the bending block 9 to rotate, thereby realizing the bending of the square tube 14.

[0025] In this embodiment, the telescopic assembly includes a connecting block 7 bolted to the upper side of the fixed block 4 and a telescopic block 8 slidably connected to the end of the connecting block 7 away from the fixed block 4 via a slider and a slide groove. The end of the telescopic block 8 away from the connecting block 7 is connected to the upper side of the bending block 9. The upper side of the telescopic block 8 has multiple fixing holes 801 linearly formed. The upper side of the connecting block 7 is threaded with multiple fixing bolts 15. The lower end of the fixing bolts 15 passes through the connecting block 7 and is threaded into the fixing holes 801. During use, the operator can pull the telescopic block 8 to slide within the connecting block 7, thereby adjusting the distance between the bending block 9 and the fixed block 4 to accommodate square tubes 14 of different widths. After adjustment, the operator can fix the telescopic tube to the bending block 9 using the fixing bolts 15, preventing the telescopic tube from moving during use and improving the reliability of the square tube bending machine during use.

[0026] In this embodiment, the clamping assembly includes a fixed clamping plate 16 bolted to the side of the worktable 1. A clamping plate groove 101 located on the worktable 1 is formed on the left side of the fixed clamping plate 16. A movable clamping plate 17 is slidably connected to a slider within the clamping plate groove 101. Screw mounting plates 18 located on the lower side of the worktable 1 are bolted to both ends of the clamping plate groove 101. A screw 19 is rotatably connected between the two screw mounting plates 18 via bearings. The lower end of the movable clamping plate 17 is threaded onto the screw 19, close to the worktable 1. A rotating handle 20 is rotatably connected to the side of the lead screw mounting plate 18 on the left side via a bearing. One end of the rotating handle 20 passes through the lead screw mounting plate 18 and is fixedly connected to the lead screw 19. In use, the operator moves the square tube 14 to contact the side of the fixed clamping plate 16, and then drives the lead screw 19 to rotate by rotating the handle 20. Under the action of the thread, the movable clamping plate 17 moves along the clamping plate slide groove 101 toward the square tube 14 until the movable clamping plate 17 contacts the side of the square tube 14, thereby fixing the square tube 14 and preventing the square tube 14 from moving during the bending process.

[0027] In this embodiment, rubber pads 21 are glued to the inner surfaces of both the movable clamp 17 and the fixed clamp 16. During use, the rubber pads 21 can increase the friction between the square tube 14 and the movable clamp 17 and the fixed clamp 16, thereby improving the fixing effect of the movable clamp 17 and the fixed clamp 16 on the square tube 14. At the same time, the rubber pads 21 can provide protection for the square tube 14 and prevent the square tube 14 from being damaged.

[0028] In this embodiment, the detection component includes an infrared thermometer 12 bolted to the lower side of the connecting block 7 and a display screen 13 bolted to the upper side of the connecting block 7. The infrared thermometer 12 is located directly above the square tube 14 and is electrically connected to the display screen 13. In use, the infrared thermometer 12 can measure the temperature of the square tube 14 and display the temperature of the square tube 14 on the display screen 13, thereby facilitating the operator to control the heating temperature of the square tube 14.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A square tube bending machine comprising a work table, characterized in that: The workbench is internally provided with a rotating assembly, the upper side of the rotating assembly is provided with a fixed block, the circumferential side of the fixed block is provided with a first heat conduction layer, a plurality of first heating rods are annularly arranged on the upper side of the fixed block with the center of the upper side of the fixed block as the center, the heating end of the first heating rod is inserted into the first heat conduction layer, the upper side of the fixed block is provided with a telescopic assembly, the end of the telescopic assembly away from the fixed block is provided with a bending block, the circumferential side of the bending block is provided with a second heat conduction layer, a plurality of second heating rods are annularly arranged on the upper side of the bending block with the center of the bending block as the center, the heating end of the second heating rod is inserted into the second heat conduction layer, the second heat conduction layer and the first heat conduction layer are in contact with the side surface of the square tube. The upper side of the workbench is provided with a clamping assembly located on one side of the fixed block. The lower side of the telescopic assembly is provided with a detection assembly for detecting the temperature of the square tube.

2. A square tube bending machine according to claim 1, characterized in that: The rotating assembly comprises a rotating seat rotatably connected to the upper side of the workbench and a torsion motor arranged on the lower side of the workbench, the output shaft of the torsion motor penetrates the workbench and is connected with the rotating seat, and the lower side of the fixed block is fixedly connected with the upper side of the rotating seat.

3. A square tube bending machine according to claim 1, characterized in that: The telescopic assembly comprises a connecting block arranged on the upper side of the fixed block and a telescopic block slidingly connected to the end of the connecting block away from the fixed block, the end of the telescopic block away from the connecting block is connected with the upper side of the bending block, a plurality of fixing holes are linearly arranged on the upper side of the telescopic block, a plurality of fixing bolts are threadedly connected to the upper side of the connecting block, and the lower ends of the fixing bolts are threadedly connected in the fixing holes through the connecting block.

4. A square tube bending machine according to claim 1, characterized in that: The clamping assembly comprises a fixed clamping plate arranged on the upper side of the workbench, a clamping plate sliding groove on the workbench is arranged on the left side of the fixed clamping plate, a movable clamping plate is slidingly connected in the clamping plate sliding groove, a lead screw mounting plate on the lower side of the workbench is arranged at the left and right ends of the clamping plate sliding groove, a lead screw is rotatably connected between the two lead screw mounting plates, the lower end of the movable clamping plate is threadedly connected to the lead screw, a rotating handle is rotatably connected to the side of the lead screw mounting plate close to the left side of the workbench, and one end of the rotating handle is connected with the lead screw through the lead screw mounting plate.

5. A square tube bending machine according to claim 4, characterized in that: The inner sides of the movable clamping plate and the fixed clamping plate are both provided with rubber pads.

6. A square tube bending machine according to claim 1 or 3, characterized in that: The detection assembly comprises an infrared temperature detector arranged on the lower side of the connecting block and a display screen arranged on the upper side of the connecting block, the infrared temperature detector is located directly above the square tube, and the infrared temperature detector and the display screen are electrically connected.

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