Angle steel bending machine

Abstract

The utility model relates to an angle steel bending machine, and relates to the technical field of angle steel machining equipment.The angle steel bending machine comprises a machining table, the upper end face of the machining table is rotationally connected with two limiting discs, an abutting block is arranged between the two limiting discs, a hydraulic cylinder is installed on the machining table, and a piston rod of the hydraulic cylinder is fixedly connected with the abutting block; the telescopic direction of the hydraulic cylinder is perpendicular to the connecting line between the circle centers of the two limiting discs, a resistance heating block used for being connected with angle steel in an abutting mode is arranged above the abutting block, and a lifting assembly used for driving the resistance heating block to ascend and descend is arranged on the machining table. The angle steel bending device can improve the angle steel bending effect.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of angle steel processing equipment, in particular to an angle steel bending machine. BACKGROUND

[0002] The angle steel bending machine is a metal processing equipment specially used for bending and deforming angle steel, and the following is a detailed introduction from the working principle, structural composition, type and application of the angle steel bending machine:

[0003] Working principle: the angle steel is placed on a special mold, and mechanical force, hydraulic force or electric force is used to make the angle steel produce plastic deformation under the action of the mold, so that the purpose of bending is achieved. For example, the hydraulic angle steel bending machine is used to generate pressure through a hydraulic system, push a piston or a hydraulic cylinder, and make the mold apply uniform pressure to the angle steel to realize the bending of the angle steel.

[0004] In the related art, when the angle steel is bent by using the angle steel bending machine at room temperature, the angle steel usually has high hardness and strength, and a large external force is required for bending, which not only requires a bending force of the bending equipment, but also is prone to cracks and other defects. CONTENT OF THE INVENTION

[0005] In order to improve the bending effect of the angle steel, the application provides an angle steel bending machine.

[0006] The angle steel bending machine provided by the application adopts the following technical scheme:

[0007] An angle steel bending machine comprises a machining table, two limiting discs are rotationally connected to the upper end face of the machining table, an abutting block is arranged between the two limiting discs, a hydraulic cylinder is installed on the machining table, the piston rod of the hydraulic cylinder is fixedly connected with the abutting block, the extension direction of the hydraulic cylinder is perpendicular to the line between the centers of the two limiting discs, an electric resistance heating block for abutting with the angle steel is arranged above the abutting block, and a lifting assembly for driving the electric resistance heating block to lift is arranged on the machining table.

[0008] By adopting the technical scheme, the angle steel can be placed on the machining table and directly below the resistance heating block, then the lifting assembly is controlled and the resistance heating block is started to abut against the angle steel to heat the angle steel, then the lifting assembly is controlled to move the resistance block away from the angle steel when the angle steel reaches a certain temperature, then the hydraulic cylinder is started to drive the abutting block to move to the gap between the two limiting discs to bend the angle steel. Thus, the plasticity of the angle steel is improved after heating, the angle steel can be bent to a large extent under a small external force, the force required for bending is reduced, the requirement for the bending equipment is reduced, the crystal structure inside the angle steel is more active after heating, the material can better adapt to the external force to deform during the bending process, the generation of residual stress is reduced, the springback phenomenon is reduced, the bending precision is improved, the angle steel after bending is closer to the shape and size required by the design, and the bending effect of the angle steel is improved.

[0009] Optionally, the lifting assembly comprises a support frame fixedly connected to the machining table, and a lifting cylinder fixedly connected to the support frame, with the telescopic end of the lifting cylinder fixedly connected to the resistance heating block.

[0010] By adopting the technical scheme, the lifting cylinder can be controlled to drive the resistance heating block to lift and lower.

[0011] Optionally, the lower end of the abutting block is fixedly connected to a sliding plate, and the upper end surface of the machining table opposite to the sliding plate is provided with a sliding groove, and the sliding plate is slidingly connected to the sliding groove.

[0012] By adopting the technical scheme, the sliding direction of the abutting block can be limited by the sliding plate and the sliding groove, and the stability of the abutting block when abutting against the angle steel is improved.

[0013] Optionally, the abutting end of the abutting block is provided with a protection plate, and a fixing assembly for fixing the protection plate to the abutting block is arranged between the protection plate and the abutting block.

[0014] By adopting the technical scheme, the abutting block can be protected by the protection plate, and the wear of the abutting block can be reduced, and the protection plate can be disassembled and replaced by adjusting the fixing assembly.

[0015] Optionally, the fixing assembly comprises a plurality of countersunk head bolts threadedly connected to the protection plate, and the rod portions of the countersunk head bolts are threadedly connected to the abutting block.

[0016] By adopting the technical scheme, the rod portions of the countersunk head bolts can be separated from the abutting block by rotating the countersunk head bolts, and then the protection plate can be disassembled from the abutting block.

[0017] Optionally, the length of the sliding plate is longer than that of the abutment block, and a heat insulation pad is fixedly connected to the upper end of the sliding plate.

[0018] By adopting the above technical solution, the heat insulation pad can prevent the heat from the angle steel from being conducted to the skateboard, thus reducing the occurrence of skateboard bending.

[0019] Optionally, the slide plate has a mounting groove for placing the heat insulation pad, and the heat insulation pad is placed in the mounting groove.

[0020] By adopting the above technical solution, the installation position of the heat insulation pad can be restricted through the mounting groove, thereby improving the stability of the heat insulation pad on the skateboard.

[0021] Optionally, the resistance heating block is configured to be right-angled.

[0022] By adopting the above technical solution, the right-angled resistance heating block can fit better with the angle steel, thereby improving the heating effect of the resistance heating block on the angle steel.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. Heating increases the plasticity of angle steel, enabling it to bend to a greater extent with less external force, reducing the force required for bending and lowering the requirements for bending equipment. Heating also makes the internal crystal structure of angle steel more active.

[0025] 2. During the bending process, the material can better adapt to the deformation caused by external force, reducing the generation of residual stress, thereby reducing springback, improving bending accuracy, and making the bent angle steel closer to the shape and size required by the design, thus improving the bending effect of the angle steel;

[0026] 3. The protective plate can protect the abutment block, reducing wear on the abutment block. The protective plate can also be disassembled and replaced by adjusting the fixing components. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0028] Figure 2 This is a schematic diagram of the slide groove according to an embodiment of this application.

[0029] In the diagram, 1 is the processing table; 11 is the slide; 2 is the limiting disc; 3 is the abutment block; 4 is the hydraulic cylinder; 5 is the resistance heating block; 6 is the lifting assembly; 61 is the support frame; 62 is the lifting cylinder; 7 is the sliding plate; 71 is the mounting groove; 72 is the heat insulation pad; 8 is the protective plate; 9 is the fixing assembly; and 91 is the countersunk bolt. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 - Appendix Figure 2 This application will be described in further detail below.

[0031] An embodiment of this application is: an angle steel bending machine, referring to... Figure 1 and Figure 2 The system includes a processing table 1, which is rectangular in shape. Two limiting discs 2 are rotatably connected to the upper surface of the processing table 1, and a gap is left between the two limiting discs 2 for bending angle steel. An abutment block 3 is provided between the two limiting discs 2, and the side of the abutment block 3 closest to the limiting disc 2 is the abutment end, which is set as a pointed end.

[0032] A hydraulic cylinder 4 is installed on the processing table 1. The piston rod of the hydraulic cylinder 4 is fixedly connected to the abutment block 3. The extension and retraction direction of the hydraulic cylinder 4 is perpendicular to the line connecting the centers of the two limiting discs 2.

[0033] The angle steel can then be placed on the processing table 1, and the hydraulic cylinder 4 can be activated. This causes the hydraulic cylinder 4 to move the abutment block 3 into the gap between the two limiting discs 2, thereby bending the angle steel.

[0034] To improve the stability of the abutment block 3 when it abuts against the angle steel, a sliding plate 7 is fixedly connected to the lower end of the abutment block 3. The sliding plate 7 is parallel to the upper surface of the processing table 1, and its length is greater than that of the abutment block 3. A groove 11 is formed on the upper surface of the processing table 1 opposite to the sliding plate 7. The opening direction of the groove 11 is parallel to the extension and retraction direction of the hydraulic cylinder 4. The sliding plate 7 is slidably connected within the groove 11.

[0035] The abutting end of the abutting block 3 is provided with a protective plate 8, which is V-shaped and fits against the tip of the abutting block 3. A fixing assembly 9 is provided between the protective plate 8 and the abutting block 3 to fix the protective plate 8 to the abutting block 3. The fixing assembly 9 includes multiple countersunk bolts 91 threaded onto the protective plate 8; in this embodiment, two countersunk bolts 91 are used. The shank of the countersunk bolt 91 is threaded onto the abutting block 3. By rotating the countersunk bolt 91, the shank of the countersunk bolt 91 is disengaged from the abutting block 3, thereby removing the protective plate 8 from the abutting block 3.

[0036] Above the abutment block 3 is a resistance heating block 5 for abutting against the angle steel. The resistance heating block 5 is set in a right-angle shape to fit against the angle steel. The processing table 1 is equipped with a lifting assembly 6 for moving the resistance heating block 5 up and down.

[0037] The lifting assembly 6 includes a support frame 61, which is shaped like a gate. The support frame 61 is fixedly connected to the processing table 1, and a lifting cylinder 62 is fixedly connected to the support frame 61. The telescopic end of the lifting cylinder 62 is fixedly connected to the resistance heating block 5.

[0038] The implementation principle of this embodiment is as follows: Angle steel is placed on the processing table 1, positioned directly below the resistance heating block 5. Then, a lifting cylinder is controlled to lower the resistance heating block 5. The resistance heating block 5 is then activated, pressing against the angle steel to heat it. Once the angle steel reaches a certain temperature, the lifting assembly 6 is controlled to move the resistance block away from the angle steel. Subsequently, the hydraulic cylinder 4 is activated, causing the contact block 3 to move towards the gap between the two limiting discs 2, thereby bending the angle steel.

[0039] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. An angle steel bending machine, characterized in that, The equipment includes a processing table (1), on which two limiting discs (2) are rotatably connected. An abutment block (3) is provided between the two limiting discs (2). A hydraulic cylinder (4) is installed on the processing table (1). The piston rod of the hydraulic cylinder (4) is fixedly connected to the abutment block (3). The extension and retraction direction of the hydraulic cylinder (4) is perpendicular to the line connecting the centers of the two limiting discs (2). A resistance heating block (5) for abutting against the angle steel is provided above the abutment block (3). A lifting assembly (6) for driving the resistance heating block (5) to rise and fall is provided on the processing table (1).

2. The angle steel bending machine according to claim 1, characterized in that, The lifting assembly (6) includes a support frame (61), which is fixedly connected to the processing table (1). A lifting cylinder (62) is fixedly connected to the support frame (61), and the telescopic end of the lifting cylinder (62) is fixedly connected to the resistance heating block (5).

3. The angle steel bending machine according to claim 1, characterized in that, The lower end of the abutment block (3) is fixedly connected to a sliding plate (7), and a groove (11) is provided on the upper surface of the processing table (1) opposite to the sliding plate (7). The sliding plate (7) is slidably connected in the groove (11).

4. The angle steel bending machine according to claim 3, characterized in that, The abutting end of the abutting block (3) is provided with a protective plate (8), and a fixing component (9) for fixing the protective plate (8) on the abutting block (3) is provided between the protective plate (8) and the abutting block (3).

5. The angle steel bending machine according to claim 4, characterized in that, The fixing component (9) includes a plurality of countersunk bolts (91) threaded onto the protective plate (8), the shank of which is threaded onto the abutment block (3).

6. The angle steel bending machine according to claim 4, characterized in that, The length of the slide plate (7) is longer than that of the abutment block (3), and the upper end of the slide plate (7) is fixedly connected to a heat insulation pad (72).

7. The angle steel bending machine according to claim 6, characterized in that, The slide plate (7) has an installation groove (71) for placing the heat insulation pad (72), and the heat insulation pad (72) is placed in the installation groove (71).

8. The angle steel bending machine according to claim 1, characterized in that, The resistance heating block (5) is set in a right-angle shape.

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