An angle steel heating and bending equipment

Abstract

This application relates to an angle steel heating and bending device, belonging to the technical field of metal forming and processing equipment. It includes a worktable and a pushing component and a contacting component disposed on the upper surface of the worktable. A heating component is disposed between the pushing component and the contacting component. The pushing component includes a first driving member and a bending head, which is driven by the first driving member to move towards or away from the contacting component. The contacting component includes two contact members, located on opposite sides of the bending head, for contacting the sidewalls of the angle steel when the bending head bends it. The bending head includes a mounting base and an angle adjustment mechanism disposed on the mounting base. The first driving member is connected to the mounting base, and the angle adjustment mechanism is used to adjust the bending angle of the angle steel. This application has the effect of improving the efficiency of bending angle steel at different angles.

Description

Technical Field

[0001] This application relates to the field of metal forming and processing equipment technology, and in particular to an angle steel heating and bending equipment. Background Technology

[0002] Angle steel is a type of steel material composed of two long strips of steel plates forming an approximately L-shaped cross section. In the mechanical manufacturing process, angle steel, as a component of parts, usually needs to be bent to meet the shape requirements of specific mechanical parts. Angle steel bending typically involves heating the part to be bent using angle steel heating and bending equipment before bending.

[0003] Currently, existing angle steel bending equipment typically bends angle steel by placing the angle steel on a workbench, heating it, and then using a hydraulic cylinder to drive the bending head towards the angle steel. This causes the bending head to abut against the target area on the angle steel, while the angle steel on both sides of the bending head abuts against the abutting parts on the workbench, thus achieving bending. The outer contour of the bending head that abuts against the angle steel usually includes an arc segment and two straight edges tangent to the arc segment on both sides. During bending, the arc segment of the bending head abuts against the angle steel first, and the angle steel begins to bend. Subsequently, the angle steel bends to the position where it abuts against the straight edges, thus completing the bending. The bending angle is the angle between the extensions of the two straight edges.

[0004] However, this method is usually only applicable to bending angle steel to a fixed angle. If it is necessary to bend the angle steel to different angles, then the bending head needs to be replaced. Therefore, in the actual production process, in order to meet different bending requirements, it is necessary to frequently change different bending heads to meet the different angle bending requirements of angle steel, which will result in low efficiency when angle steel needs to be bent to different angles. Summary of the Invention

[0005] To improve the bending efficiency of angle steel, this application provides an angle steel heating and bending device.

[0006] The angle steel heating and bending equipment provided in this application adopts the following technical solution: The device includes a worktable and a pushing component and a contacting component disposed on the upper surface of the worktable. A heating component is disposed between the pushing component and the contacting component. The pushing component includes a first driving member and a bending head. The bending head is disposed on the first driving member and is driven by the first driving member to move towards or away from the contacting component. The contacting component includes two contact members, which are respectively located on both sides of the bending head and are used to abut against the side wall of the angle steel when the bending head bends the angle steel. The bending head includes a mounting base and an angle adjustment mechanism disposed on the mounting base. The first driving member is connected to the mounting base, and the angle adjustment mechanism is used to adjust the bending angle of the angle steel.

[0007] By adopting the above technical solution, when angle steel needs to be bent, the angle steel to be bent is placed on the heating component on the workbench for heating. After heating, the operator can adjust the bending angle of the bending head through the angle adjustment mechanism. When the first drive component is activated, the bending head abuts against the part of the angle steel that needs to be bent, and at the same time pushes the two sides of the angle steel to be bent to abut against the abutting component. Then the angle steel is bent, so that when the angle steel is bent to the point where the two sides of the bending point abut against the angle adjustment mechanism, the target angle bending is achieved. In this process, there is no need to replace the bending head, and the angle steel bending angle can be adjusted by the angle adjustment mechanism, which improves the efficiency of bending angle steel at different angles.

[0008] Optionally, the angle adjustment mechanism includes a fixed rod, a second driving member, a connecting seat, two abutment plates, and two connecting rods. The fixed rod is vertically fixed to the end of the mounting seat away from the first driving member. Both abutment plates are hinged to the fixed rod for abutting against the side wall of the angle steel. The second driving member is mounted on the mounting seat and connected to the connecting seat. One end of each of the two connecting rods is hinged to the connecting seat, and the other end of each connecting rod is hinged to an abutment plate. When the second driving member drives the connecting seat to move closer to or further away from the fixed rod, the included angle between the two abutment plates changes.

[0009] By adopting the above technical solution, the connecting seat can be moved on the mounting base by activating the second driving component, which in turn drives the two connecting rods to swing relative to the connecting seat. This allows the two abutment plates to rotate around the axis of the fixed rod, and the included angle between the two abutment plates is the bending angle of the angle steel. When it is necessary to adjust the included angle between the two abutment plates, the displacement distance of the connecting seat on the mounting base can be adjusted by the second driving component.

[0010] Optionally, each of the two abutment plates has a placement groove on one side for the connecting rod to enter. The position where the connecting rod is hinged to the abutment plate is located in the placement groove. When the connecting rod and the abutment plate are on the same straight line, the connecting rod is located in the placement groove.

[0011] By adopting the above technical solution, a placement groove is provided on one side of each of the two abutment plates. When the connecting rod and the abutment plate are on the same straight line, the connecting rod is located in the placement groove. At this time, when the angle steel is bent to the position where it abuts the abutment plate, the angle steel is in a U-shaped state. That is, in addition to normal angle bending, the angle steel can also be bent at a 180° angle, making it more applicable.

[0012] Optionally, elastic elements are provided on opposite sides of the two connecting rods, and when both connecting rods are located in the placement groove, the two elastic elements abut against each other.

[0013] By adopting the above technical solution, the two elastic elements abut against each other, which makes the two connecting rods always tend to move away from each other. When the connecting seat moves towards the fixed rod on the mounting seat under the action of the second driving element, the two connecting rods can be separated smoothly, reducing the probability that the connecting rods need to be separated by staff due to the inability of the two connecting rods to be separated smoothly.

[0014] Optionally, a rotating shaft is provided in the placement groove, and a waist-shaped hole is provided on the connecting rod with the extension direction consistent with the length direction of the connecting rod, and the rotating shaft passes through the waist-shaped hole.

[0015] By adopting the above technical solution, when the connecting rod is not in the placement groove, since the waist-shaped groove can be displaced relative to the rotating shaft in the placement groove, the side wall of the end of the connecting rod can abut against the side wall of the placement groove during the bending process of the angle steel. Moreover, the rotating shaft will not be easily subjected to the force transmitted by the abutment plate when the angle steel is bent during this bending process, which plays a role in protecting the hinge between the connecting rod and the abutment plate.

[0016] Optionally, the abutment plate is provided with a receiving groove, and the connecting rod is provided with a locking block. When the connecting rod and the abutment plate are on the same straight line, the locking block is located in the receiving groove and abuts against the side wall of the receiving groove.

[0017] By adopting the above technical solution, when the angle steel needs to be bent into a U-shape, that is, when the connecting rod and the abutment plate are on the same straight line, the force borne by the abutment plate can be transmitted to the connecting rod through the abutment between the locking block and the receiving groove, instead of only through the hinge between the connecting rod and the abutment plate, thus reducing the probability of damage to the hinge between the connecting rod and the abutment plate.

[0018] Optionally, the placement groove is provided with an arc-shaped surface that can abut against the end of the connecting rod.

[0019] By adopting the above technical solution, when the end of the connecting rod abuts against the side wall of the placement groove, the end of the connecting rod can abut against the arc-shaped surface in the placement groove. This not only prevents the connecting rod from being easily interfered with by the side wall in the placement groove when it rotates on the relative abutment plate, but also increases the contact area between the connecting rod and the side wall of the placement groove, reducing the probability of damage due to concentrated force caused by the small contact area between the abutment plate and the connecting rod.

[0020] Optionally, a drive mechanism is provided on the worktable. The drive mechanism includes a third drive component, a two-way lead screw, and a placement seat. The two-way lead screw is located on the lower surface of the worktable plate. The third drive component is used to drive the two-way lead screw to rotate around its own axis. There are two placement seats, which are respectively located at both ends of the two-way lead screw. Abutment members are located on the placement seats. When the two-way lead screw rotates, the two abutment members move closer to each other or move away from each other at the same time.

[0021] By adopting the above technical solution, the distance between the two abutting parts can be adjusted by the third driving part and the bidirectional lead screw, so that during the bending process of the angle steel at different angles, the positions of both sides of the angle steel bending point can always be between the abutting parts and the abutting plate. The abutting parts and the abutting plate clamp the angle steel, reducing the probability of inaccurate bending angle caused by the springback of the angle steel after bending.

[0022] Optionally, a sliding groove is provided on the worktable, and the placement seat includes a fixedly connected mounting part and a sliding part. The sliding part passes through the placement groove and is connected to a bidirectional lead screw. An abutment is provided on the mounting part, and the mounting part abuts against the upper surface of the worktable plate.

[0023] By adopting the above technical solution, the abutment is set on the mounting part that abuts against the upper surface of the worktable. This allows the force that the abutment experiences when it abuts against the angle steel, and that is perpendicular to the axis of the bidirectional lead screw, to be transmitted to the worktable through the mounting seat.

[0024] Optionally, a fixing block is provided at each end of the sliding groove, and an adjusting screw is provided on each fixing block by means of a threaded connection. The end of the adjusting screw is used to abut against the mounting part when the angle steel is bent.

[0025] By adopting the above technical solution, when the abutting part abuts against the angle steel, the force exerted on the abutting part in a direction parallel to the axis of the bidirectional screw can be shared by the adjusting screw.

[0026] In summary, this application includes at least the following beneficial technical effects: 1. By setting an angle adjustment mechanism on the bending head, when the target bending angle of the angle steel changes, the operator can adjust the bending angle of the bending head through the angle adjustment mechanism, thereby achieving adaptation to different bending angles of the angle steel on the same bending head. This eliminates the need for frequent replacement of the bending head when dealing with bending small batches of angle steel at multiple angles, thus improving the efficiency of bending angle steel at different angles.

[0027] 2. By setting a third driving component and a two-way lead screw, the distance between the two abutting components can be adjusted by the third driving component and the two-way lead screw. This ensures that during the bending process of the angle steel at different angles, the positions of both sides of the angle steel at the bending point are always between the abutting component and the abutting plate. The abutting component and the abutting plate clamp the angle steel, reducing the probability of inaccurate bending angle due to springback after bending, thus improving the bending quality of the angle steel. Attached Figure Description

[0028] Figure 1 This is a three-dimensional schematic diagram of an angle steel heating and bending device according to an embodiment of this application; Figure 2 yes Figure 1 A three-dimensional schematic diagram of the angle adjustment mechanism (the angle steel and the cover plate on the mounting base are hidden in the diagram). Figure 3 yes Figure 2 Enlarged view of point A in the middle; Figure 4 yes Figure 3 A three-dimensional structural diagram of the middle abutment plate and the connecting rod; Figure 5 yes Figure 4 Schematic diagram of the connection structure between the middle abutment plate and the connecting rod; Figure 6 yes Figure 5 A schematic diagram showing the swing position of the connecting rod relative to the abutment plate; Figure 7 yes Figure 1 A three-dimensional diagram from another perspective.

[0029] Explanation of reference numerals in the attached drawings: 1. Worktable; 2. Propulsion assembly; 3. Abutment assembly; 4. Heating assembly; 5. First drive component; 6. Bending head; 7. Abutment component; 8. Angle adjustment mechanism; 9. Mounting seat; 10. Fixing rod; 11. Second drive component; 12. Connecting seat; 13. Abutment plate; 14. Connecting rod; 15. Placement slot; 16. Elastic component; 17. Receiving slot; 18. Locking block; 19. Rotating shaft; 20. Waist-shaped groove; 21. Arc-shaped surface; 22. Drive mechanism; 23. Third drive component; 24. Bidirectional lead screw; 25. Placement seat; 26. Mounting part; 27. Sliding part; 28. Sliding groove; 29. ​​Fixing block; 30. Adjusting screw. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0031] Example This application discloses an angle steel heating and bending device, referring to... Figure 1 , Figure 2 and Figure 3 It includes a worktable 1 and a pushing component 2 and abutting component 3 set on the worktable 1. The pushing component 2 includes a bending head 6 and a first driving component 5. The bending head 6 is set on the first driving component 5 and is driven by the first driving component 5 to move on the worktable 1 in a direction closer to or away from the abutting component 3. The abutting component 3 includes two cylindrical abutting members 7. The two abutting members 7 are located on both sides of the moving direction of the bending head 66, and the axis of the abutting members 77 is perpendicular to the worktable 1.

[0032] On the workbench 1, at the position between the bending head 6 and the abutment component 3, there is a heating component 4 for heating the angle steel to be bent. Since the heating component 4 is existing technology, it will not be described in detail.

[0033] After the angle steel is heated, the first driving component 5 drives the bending head 6 to move towards the abutting component 3 until the angle steel abuts against the two abutting components 7. Subsequently, the first driving component 5 continues to push the connecting bending head 6, so that the bending head 6 continuously applies pressure to the heated part of the angle steel, thereby achieving the bending of the heated part of the angle steel.

[0034] The bending head 6 includes a mounting base 9 and an angle adjustment mechanism 8. The mounting base 9 is connected to the output shaft of the first driving member 5, and the angle adjustment mechanism 8 includes a fixed rod 10, a second driving member 11, a connecting base 12, two abutment plates 13, and two connecting rods 14. The fixed rod 10 is vertically fixed on the mounting base 9 at a position away from the first driving member 5, and the two abutment plates 13 are hinged to the fixed rod 10 and can rotate about the axis of the fixed rod 10. This allows the angle between the two abutment plates 13 to be adjusted, so that when the fixed rod 10 with the abutment plates 13 is in contact with the angle steel, the bending angle of the angle steel can be adjusted by adjusting the angle between the two abutment plates 13.

[0035] The second driving component 11 is mounted on the mounting base 9. The second driving component 11 is a hydraulic cylinder. The output shaft of the second driving component 11 is connected to the connecting base 12 to drive the connecting base 12 to move on the mounting base 9 towards or away from the fixed rod 10. Both connecting rods 14 are hinged to the connecting base 12, and the ends of the two connecting rods 14 away from the connecting base 12 are respectively hinged to abutment plate 13. When the second driving component 11 drives the connecting base 12 to move on the mounting base 9 towards the fixed rod 10, the included angle between the two connecting rods 14 increases, and at the same time, the included angle between the two abutment plates 13 increases. When the second driving component 11 drives the connecting base 12 to move on the mounting base 9 away from the fixed rod 10, the included angle between the two connecting rods 14 decreases, and at the same time, the angle between the two abutment plates 13 decreases. That is, by controlling the displacement of the connecting base 12 on the mounting base 9, the included angle between the two abutment plates 13 can be controlled.

[0036] In other embodiments, the first drive member 5 and the second drive member 11 may also be an electric cylinder or a pneumatic cylinder.

[0037] Reference Figure 3 , Figure 4 , Figure 5 and Figure 6Furthermore, on opposite sides of the two abutment plates 13, there are placement grooves 15 respectively. The hinge position of the connecting rod 14 and the abutment plate 13 is located in the placement groove 15. When the connecting seat 12 is at the position furthest from the fixed rod 10 under the drive of the second drive member 11 (that is, when the output shaft of the second drive member 11 is in the initial state of not extending), the abutment plate 13 and the hinged connecting rod 14 are on the same straight line, and the connecting rod 14 is located in the placement groove 15. At this time, the bending head 6 can bend the angle steel into a U-shape with a small bending radius with the assistance of the abutment member 7.

[0038] It is worth mentioning that when the angle steel is bent into a U-shape, the side wall of the angle steel will abut against the abutment plate 13 under the action of the abutment member 7. Since the hinge position of the connecting rod 14 with the abutment plate 13 is located in the placement groove 15, part of the connecting rod 14 will be located in the placement groove 15. At this time, the part of the connecting rod 14 located in the placement groove 15 will play a role in distributing the pressure on the abutment plate 13. Compared with hinged connecting rod 14 to the end of abutment plate 13, the abutment plate 13 has a stronger bearing capacity, and the hinge position between abutment plate 13 and connecting rod 14 is less likely to be damaged.

[0039] Elastic elements 16 are also embedded on opposite sides of the two connecting rods 14. The elastic elements 16 can be high-temperature resistant rubber pads. When the connecting rods 14 are located in the placement groove 15, the elastic elements 16 on the two connecting rods 14 will abut against each other, so that the two connecting rods 14 always tend to move away from each other. This allows the two connecting rods 14 to separate smoothly when the subsequent connecting seat 12 needs to move towards the fixed rod 10 under the push of the second driving member 11, without the need for personnel to intervene to separate the connecting rods 14.

[0040] Furthermore, a pivot 19 is provided in the placement groove 15, and the end of the connecting rod 14 that is hinged to the abutment plate 13 is provided with a waist-shaped groove 20 whose extension direction is consistent with its own length direction. The pivot 19 passes through the waist-shaped groove 20. This allows the connecting rod 14 to support the abutment plate 13 through the abutment between its end and the side wall of the placement groove 15 during the bending of the angle steel (non-U-shaped bending). This prevents the force applied to the abutment plate 13 during the bending of the angle steel from being easily transmitted to the pivot 19, thus achieving the effect of protecting the hinge between the abutment plate 13 and the connecting rod 14 during the bending process.

[0041] Furthermore, the sidewall of the placement groove 15 that abuts against the end of the connecting rod 14 is an arc-shaped surface 21. This increases the contact area between the end of the connecting rod 14 and the sidewall of the placement groove 15, reducing the probability of damage to the abutment plate 13 due to the small contact area between the abutment plate 13 and the connecting rod 14 and the concentrated force on the abutment plate 13. At the same time, this also ensures that the rotation of the connecting rod 14 relative to the rotating shaft 19 will not be easily interfered with.

[0042] Inside the placement groove 15, there is also a receiving groove 17. The connecting rod 14 is provided with a locking block 18 that is adapted to the receiving groove 17. When the connecting rod 14 is in the placement groove 15 on the abutment plate 13, the locking block 18 is simultaneously located in the receiving groove 17 on the abutment plate 13. This allows the force from the pushing direction of the first driving member 5 on the abutment plate 13 to be distributed on the connecting rod 14 through the abutment between the locking block 18 and the side wall of the receiving groove 17 when the angle steel is bent into a U-shape. This reduces the probability of damage to the hinge between the connecting rod 14 and the abutment plate 13.

[0043] Reference Figure 2 and Figure 7 On the lower surface of the workbench 1, a drive mechanism 22 is also provided. The drive mechanism 22 includes a third drive component 23, a bidirectional lead screw 24, and a placement seat 25 corresponding to the number of abutment parts 7. A sliding groove 28 is also provided on the workbench 1. The bidirectional lead screw 24 is located below the sliding groove 28. The third drive component 23 is a motor with a power-off self-locking function. The output end of the third drive component 23 is connected to the bidirectional lead screw 24 to drive the bidirectional lead screw 24 to rotate around its own axis. The placement seat 25 includes a sliding part 27 and a mounting part 26 that are fixedly connected. The sliding part 27 has a lead screw nut that is adapted to the bidirectional lead screw 24. After passing through the sliding groove 28, the sliding part 27 is set on the bidirectional lead screw 24 and can slide in the sliding groove 28 under the drive of the bidirectional lead screw 24. The abutment parts 7 are fixedly set on the mounting part 26.

[0044] When the target angle of the angle steel changes significantly, the operator adjusts the distance between the two abutment pieces 7 by activating the third drive component 23. This ensures that when the angle steel is bent to the target angle, the positions of both sides of the bending point are always between the abutment piece 7 and the abutment plate 13. As a result, after the angle steel is bent, the positions of both sides of the bending point are always between the abutment piece 7 and the abutment plate 13, so it will not easily spring back and cause the angle to change after bending.

[0045] It should be noted that as long as the positions on both sides of the bending point of the angle steel are always between the abutment 7 and the abutment plate 13 after bending, there is no need to adjust the position of the abutment 7 on the worktable 1 even if the target angle of the angle steel bends changes.

[0046] The portion of the mounting part 26 located above the workbench 1 should abut against the upper surface of the workbench 1. This allows the force on the abutting part 7, which is perpendicular to the length direction of the double-acting screw 24, to be transmitted to the workbench 1 through the mounting part 26 when the abutting part 7 abuts against the angle steel. This reduces the force on the double-acting screw 24 and protects the double-acting screw 24.

[0047] Fixed blocks 29 are respectively provided at both ends of the sliding groove 28. The fixed blocks 29 are fixedly connected to the table plate of the workbench 1. Each fixed block 29 is provided with an adjusting screw 30 by means of thread engagement. The end of the adjusting screw 30 is used to abut against the mounting part 26. When the abutting part 7 abuts against the angle steel, the force parallel to the length direction of the bidirectional lead screw 24 borne by the abutting part 7 can be transmitted to the adjusting screw 30, thereby reducing the axial force applied to the bidirectional lead screw 24 by the sliding part 27. After the force on the abutting part 7 is reduced, the axial force on the sliding part 27 exceeds the self-locking upper limit of the bidirectional lead screw 24 and the self-locking upper limit of the third driving member 23, and the sliding occurs, thus achieving the effect of protecting the bidirectional lead screw 24 and the third driving member 23.

[0048] It is worth mentioning that a mounting plate (not shown in the figure) perpendicular to the abutment plates 13 can also be set above the two abutment plates 13. A proximity sensor (not shown in the figure) for sensing the angle steel is set on the mounting plate. The proximity sensor is electrically connected to the first drive member 5. When the angle steel is bent to the target angle, the side wall of the angle steel will abut against the abutment plate 13, so that the proximity sensor transmits a signal to the first drive member 5, thereby stopping the push of the first drive member 5. Compared with the method of manually starting and stopping the first drive member 5, it is less likely to cause the first drive member 5 to continuously push the angle steel against the abutment member 7 due to the first drive member 5 not stopping in time, thus further ensuring the service life of the bidirectional lead screw 24.

[0049] The implementation principle of this application embodiment is as follows: First, start the second driving component 11, and control the second driving component 11 to push the connecting seat 12 on the mounting seat 9 according to the target bending angle, so that the included angle between the two abutting plates 13 reaches the target bending angle.

[0050] Then, the third drive component 23 is activated according to the target bending angle to adjust the distance between the two abutment components 7, so as to ensure that after the angle steel is bent to the target angle, the positions on both sides of its bending point can always be between the abutment component 7 and the abutment plate 13. Then, the adjusting screw 30 is rotated so that the end of the adjusting screw 30 abuts against the side wall of the mounting part 26.

[0051] The angle steel to be bent is then placed on the heating assembly 4 for heating. The first drive component 5 is then activated. At this time, the portion of the abutment plate 13 on the bending head 6 that is fitted onto the fixing rod 10 abuts against the angle steel and pushes the angle steel toward the abutment component 7. When the angle steel abuts against the abutment component 7, the first drive component 5 continues to push until the side wall of the angle steel abuts against the abutment plate 13 after bending. Then, the first drive component 5 is turned off to stop its operation. After maintaining the angle steel in the bent state for a preset time length, the first drive component 5 drives the bending head 6 to retract, and the worker can then remove the bent angle steel from the workbench 1.

[0052] When the bending angle of the angle steel changes, the displacement distance of the connecting seat 12 on the mounting seat 9 can be adjusted again by the second driving component 11 so that the included angle between the two abutting plates 13 is the same as the target angle of the angle steel, thereby changing the bending angle of the angle steel.

[0053] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A heating and bending device for angle steel, comprising a worktable (1) and a pushing assembly (2) and a contacting assembly (3) disposed on the upper surface of the worktable (1), wherein a heating assembly (4) is disposed between the pushing assembly (2) and the contacting assembly (3), characterized in that: The propulsion assembly (2) includes a first driving member (5) and a bending head (6). The bending head (6) is disposed on the first driving member (5) and is driven by the first driving member (5) to move toward or away from the abutting assembly (3). The abutting assembly (3) includes two abutting members (7). The two abutting members (7) are respectively located on both sides of the bending head (6) and are used to abut against the side wall of the angle steel when the bending head (6) bends the angle steel. The bending head (6) includes a mounting base (9) and an angle adjustment mechanism (8) disposed on the mounting base (9). The first driving member (5) is connected to the mounting base (9), and the angle adjustment mechanism (8) is used to adjust the bending angle of the angle steel.

2. The angle steel heating and bending equipment according to claim 1, characterized in that: The angle adjustment mechanism (8) includes a fixed rod (10), a second driving member (11), a connecting seat (12), two abutment plates (13), and two connecting rods (14). The fixed rod (10) is vertically fixed to the end of the mounting base (9) away from the first driving member (5). The two abutment plates (13) are hinged to the fixed rod (10) for abutting against the side wall of the angle steel. The second driving member (11) is set on the mounting base (9) and connected to the connecting seat (12). One end of each of the two connecting rods (14) is hinged to the connecting seat (12), and the other end of each of the two connecting rods (14) is hinged to one of the abutment plates (13). When the second driving member (11) drives the connecting seat (12) to move toward or away from the fixed rod (10), the included angle between the two abutment plates (13) changes.

3. The angle steel heating and bending equipment according to claim 2, characterized in that: Each of the two abutment plates (13) has a placement groove (15) on one side opposite to the connecting rod (14). The position where the connecting rod (14) is hinged to the abutment plate (13) is located in the placement groove (15). When the connecting rod (14) and the abutment plate (13) are on the same straight line, the connecting rod (14) is located in the placement groove (15).

4. The angle steel heating and bending equipment according to claim 3, characterized in that: The two connecting rods (14) are provided with elastic elements (16) on opposite sides. When both connecting rods (14) are located in the placement groove (15), the two elastic elements (16) abut against each other.

5. The angle steel heating and bending equipment according to claim 3, characterized in that: A rotating shaft (19) is provided in the placement groove (15), and a waist-shaped hole is provided on the connecting rod (14) with the extension direction consistent with the length direction of the connecting rod (14). The rotating shaft (19) passes through the waist-shaped hole.

6. The angle steel heating and bending equipment according to claim 5, characterized in that: The abutment plate (13) is provided with a receiving groove (17), and the connecting rod (14) is provided with a locking block (18). When the connecting rod (14) and the abutment plate (13) are on the same straight line, the locking block (18) is located in the receiving groove (17) and abuts against the side wall of the receiving groove (17).

7. The angle steel heating and bending equipment according to claim 5, characterized in that: The placement groove (15) is provided with an arc-shaped surface (21) that can abut against the end of the connecting rod (14).

8. The angle steel heating and bending equipment according to claim 2, characterized in that: The workbench (1) is provided with a drive mechanism (22), which includes a third drive member (23), a bidirectional lead screw (24), and a placement seat (25). The bidirectional lead screw (24) is disposed on the lower surface of the workbench (1). The third drive member (23) is used to drive the bidirectional lead screw (24) to rotate around its own axis. There are two placement seats (25) respectively disposed at both ends of the bidirectional lead screw (24). The abutment (7) is disposed on the placement seat (25). When the bidirectional lead screw (24) rotates, the two abutment (7) move closer or further apart at the same time.

9. The angle steel heating and bending equipment according to claim 8, characterized in that: The workbench (1) is provided with a sliding groove (28). The placement seat (25) includes a fixedly connected mounting part (26) and a sliding part (27). The sliding part (27) passes through the sliding groove (28) and is connected to the bidirectional lead screw (24). The abutment (7) is provided on the mounting part (26). The mounting part (26) abuts against the upper surface of the workbench (1).

10. The angle steel heating and bending equipment according to claim 9, characterized in that: The sliding groove (28) is provided with fixing blocks (29) at both ends, and each fixing block (29) is provided with an adjusting screw (30) by means of threaded connection. The end of the adjusting screw (30) is used to abut against the mounting part (26) when the angle steel is bent.

Images