Ultra-long ten-thousand-ton door type pipe manufacturing bending machine

Abstract

The utility model relates to the technical field of pipe bending machines, and particularly discloses a super-long ten-thousand-ton door-type pipe bending machine which comprises a fixed frame, a protective shell is installed in the fixed frame, a hydraulic cylinder is fixed in the protective shell through bolts, a movable plate is fixed to the telescopic end of the hydraulic cylinder, and the movable plate is fixed to the telescopic end of the hydraulic cylinder. A limiting mechanism used for pressing a workpiece is fixed to one side of the movable plate. The limiting mechanism comprises three fixing blocks, mounting pipes are fixed to the upper surfaces of the three fixing blocks, springs are mounted in the mounting pipes, movable rods are connected to the tail ends of the springs in an abutting mode, and mounting parts are fixed to the lower surfaces of the movable rods. By means of the limiting mechanism, when a workpiece is bent, the pressing roller can make contact with the upper surface of the workpiece under the action of elasticity of the spring, then the workpiece is pressed and limited, and the situation that the workpiece moves during machining is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe bending machines, in particular to an ultra-long 10,000-ton gate-type pipe bending machine. Background Art

[0002] The super-long 10,000-ton gantry pipe bending machine is a device used to bend large steel pipes. The super-long 10,000-ton gantry pipe bending machine has been continuously improved in terms of automation, processing accuracy, and work efficiency, providing more efficient and reliable processing solutions for related industries. The super-long 10,000-ton gantry pipe bending machine is widely used in the fields of oil and gas pipelines, infrastructure bridges, and aerospace industries. It is an important equipment for the processing of key components of pile foundation pipes and structural pipes in these industries.

[0003] The existing CNC bending machines are relatively large in size. When the placement surface is uneven, the balance accuracy of the CNC bending machine will be reduced and vibration will be easily caused.

[0004] The existing patent (publication number: CN212664602U) discloses a gantry CNC tube bending machine, which includes a shell, a bending machine body is arranged inside the shell, and the bottom of the bending machine body is fixedly connected to the bottom of the inner side of the shell through a lifting device, which drives the support seat to perform lifting and lowering actions by controlling the rotation direction of the threaded rod, so that the direct lowering ability of the support seat can be used to reduce the influence of the placement surface on the placement balance accuracy of the bending machine body, and the buffer spring can reduce the influence of the vibration generated by the operation of the bending machine body on the ground, thereby reducing the harm caused by the back shock.

[0005] In response to the above problems, the solution given in the existing patent controls the rotation direction of the threaded rod to drive the support seat to move up and down, thereby utilizing the direct lowering ability of the support seat to reduce the impact of the placement surface on the placement balance accuracy of the bending machine body. However, when bending the workpiece, it does not have a limiting structure, which makes the workpiece easily displaced during bending, reducing the bending accuracy of the workpiece. Summary of the invention

[0006] The purpose of the utility model is to provide an extra-long 10,000-ton gantry pipe bending machine, which can, when bending the workpiece, make the clamping roller contact with the upper surface of the workpiece under the action of the spring's own elasticity, and then clamp and limit the workpiece, effectively reduce the displacement of the workpiece during processing, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ultra-long 10,000-ton gantry pipe bending machine, comprising a fixed frame, a protective shell is installed inside the fixed frame, a hydraulic cylinder is fixed inside the protective shell by bolts, a movable plate is fixed to the telescopic end of the hydraulic cylinder, and a limiting mechanism for pressing a workpiece is fixed on one side of the movable plate;

[0008] The limiting mechanism includes a fixed block, and three fixed blocks are provided. A mounting tube is fixed to the upper surface of the three fixed blocks. A spring is installed inside the mounting tube. The end of the spring is abutted and connected with a movable rod, and a mounting piece is fixed to the lower surface of the movable rod.

[0009] Preferably, a pressure roller is installed inside the mounting member, and both ends of the pressure roller are sleeved with fixed bearings embedded in the inner wall of the mounting member.

[0010] Preferably, a bending rod is fixed to the lower end of the movable plate, and fixed plates are installed on both sides of the fixed frame.

[0011] Preferably, an L-shaped reinforcing plate is installed on the inner wall of the fixing frame, and fixing bolts are installed inside the reinforcing plate and the fixing plate.

[0012] Preferably, a base is fixed to the lower end of the interior of the fixed frame, and three groups of mounting rods are installed inside the base.

[0013] Preferably, the outer surfaces of the three groups of mounting rods are rotatably connected to auxiliary rollers via bearings, and two limit plates fixed to the protective shell are fixed to the upper surface of the base.

[0014] Preferably, a sliding groove is provided inside the limiting plate, and a sliding block fixedly connected to the movable plate is slidably connected inside the sliding groove.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. Through the setting of the limiting mechanism, when the workpiece is bent, the spring's own elasticity can make the pressing roller contact with the upper surface of the workpiece, thereby pressing and limiting the workpiece, effectively reducing the displacement of the workpiece during processing;

[0017] 2. The auxiliary roller can be rotated to ensure the smooth bending of the workpiece. With the cooperation of the slider, it plays a guiding role, thereby ensuring the stability of the movable plate movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is the overall structural view of the utility model;

[0020] Figure 2 It is a three-dimensional half-section structural schematic diagram of the movable plate of the utility model;

[0021] Figure 3 It is a half-section structural schematic diagram of the base of the utility model;

[0022] Figure 4 For this utility model Figure 1 A is an enlarged view of the middle image.

[0023] Description of reference numerals:

[0024] 1. Fixed frame; 2. Protective shell; 3. Hydraulic cylinder; 4. Movable plate; 5. Fixed block; 51. Mounting tube; 52. Spring; 53. Movable rod; 54. Mounting piece; 55. Pressure roller; 56. Fixed bearing; 6. Bending rod; 7. Fixed plate; 8. Reinforcement plate; 9. Fixing bolt; 10. Base; 11. Mounting rod; 12. Auxiliary roller; 13. Limiting plate; 14. Slide groove; 15. Slider. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model provides a technical solution:

[0027] See also Figures 1 to 4 , an ultra-long 10,000-ton gantry pipe bending machine, comprising a fixed frame 1, a protective shell 2 is installed inside the fixed frame 1, a hydraulic cylinder 3 is fixed inside the protective shell 2 by bolts, a movable plate 4 is fixed to the telescopic end of the hydraulic cylinder 3, and a limiting mechanism for pressing a workpiece is fixed on one side of the movable plate 4;

[0028] The limiting mechanism includes a fixed block 5, and there are three fixed blocks 5. A mounting tube 51 is fixed to the upper surface of the three fixed blocks 5. A spring 52 is installed inside the mounting tube 51. The end of the spring 52 is abutted and connected with a movable rod 53. A mounting piece 54 is fixed to the lower surface of the movable rod 53. A clamping roller 55 is installed inside the mounting piece 54. Both ends of the clamping roller 55 are sleeved with fixed bearings 56 embedded in the inner wall of the mounting piece 54. A bending rod 6 is fixed to the lower end of the movable plate 4, and fixed plates 7 are installed on both sides of the fixed frame 1.

[0029] By adopting the above technical solution, before using the super-long 10,000-ton gantry pipe bending machine, the fixed frame 1 is first placed in a suitable position, and the workpiece to be processed is transported to the base 10 through an external conveying device. The hydraulic cylinder 3 arranged in the protective shell 2 drives the movable plate 4 to move vertically. Through the mounting tube 51 arranged on the fixed block 5, under the action of the elasticity of the spring 52 itself, the movable rod 53 can be pushed to move vertically, so that the movable rod 53 drives the mounting part 54 to move. At this time, the clamping roller 55 contacts the upper surface of the workpiece, thereby clamping and limiting the workpiece. The displacement of the workpiece during processing is effectively reduced, and the movable plate 4 drives the bending rod 6 to contact the upper surface of the workpiece when it moves. Through the mounting rod 11 arranged in the base 10, with the cooperation of the auxiliary roller 12, the pressure applied by the bending rod 6 can bend the workpiece, and the auxiliary roller 12 can rotate, thereby ensuring the smoothness of the bending of the workpiece. When the workpiece is bent, deformation will occur. With the cooperation of the fixed bearing 56, the clamping roller 55 can limit the workpiece while allowing the workpiece to be transported, thereby ensuring the normal bending of the workpiece.

[0030] Specifically, Figure 1-Figure 4 As shown, an L-shaped reinforcing plate 8 is installed on the inner wall of the fixed frame 1, and fixing bolts 9 are installed inside the reinforcing plate 8 and the fixed plate 7. A base 10 is fixed to the lower end of the fixed frame 1, and three groups of mounting rods 11 are installed inside the base 10. The outer surfaces of the three groups of mounting rods 11 are rotatably connected to auxiliary rollers 12 through bearings. Two limit plates 13 fixed to the protective shell 2 are fixed on the upper surface of the base 10, and a slide groove 14 is opened inside the limit plate 13. A slider 15 fixedly connected to the movable plate 4 is slidably connected inside the slide groove 14.

[0031] By adopting the above technical solution, the fixing plate 7 and the reinforcing plate 8 are arranged on the protective shell 2, and the fixing bolts 9 are arranged to fix the protective shell 2 and the fixed frame 1, thereby effectively enhancing the overall strength of the bending machine. The slide groove 14 opened in the limit plate 13 can play a guiding role with the cooperation of the slider 15, thereby ensuring the stability of the movement of the movable plate 4.

[0032] Working principle: The workpiece to be processed is transported to the base 10 through an external conveying device, and the hydraulic cylinder 3 arranged in the protective shell 2 drives the movable plate 4 to move vertically. Through the mounting tube 51 arranged on the fixed block 5, under the action of the spring 52's own elasticity, the movable rod 53 is pushed to move vertically, so that the movable rod 53 drives the mounting member 54 to move. At this time, the clamping roller 55 contacts the upper surface of the workpiece, and then clamps and limits the workpiece, and the movable plate 4 drives the bending rod 6 to contact the upper surface of the workpiece when it moves. Through the mounting rod 11 arranged in the base 10, with the cooperation of the auxiliary roller 12, the pressure applied by the bending rod 6 can bend the workpiece, and the auxiliary roller 12 can rotate, thereby ensuring the smoothness of the bending of the workpiece. When the workpiece is bent, with the cooperation of the fixed bearing 56, the clamping roller 55 can limit the workpiece while enabling the workpiece to be transported. Through the slide groove 14 opened in the limiting plate 13, with the cooperation of the slider 15, it can play a guiding role, thereby ensuring the stability of the movement of the movable plate 4.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An ultra-long 10,000-ton gantry pipe bending machine, comprising a fixed frame (1), characterized in that: A protective shell (2) is installed inside the fixed frame (1), a hydraulic cylinder (3) is fixed inside the protective shell (2) by bolts, a movable plate (4) is fixed at the telescopic end of the hydraulic cylinder (3), and a limiting mechanism for pressing a workpiece is fixed on one side of the movable plate (4); The limiting mechanism comprises a fixed block (5), wherein three fixed blocks (5) are provided, and a mounting tube (51) is fixed on the upper surface of each of the three fixed blocks (5), a spring (52) is installed inside the mounting tube (51), the end of the spring (52) is abutted and connected with a movable rod (53), and a mounting piece (54) is fixed on the lower surface of the movable rod (53).

2. The super-long 10,000-ton gantry pipe bending machine according to claim 1, characterized in that: A pressing roller (55) is installed inside the mounting member (54), and both ends of the pressing roller (55) are sleeved with fixed bearings (56) embedded in the inner wall of the mounting member (54).

3. The super-long 10,000-ton gantry pipe bending machine according to claim 1, characterized in that: A bending rod (6) is fixed to the lower end of the movable plate (4), and fixed plates (7) are installed on both sides of the fixed frame (1).

4. The super-long 10,000-ton gantry pipe bending machine according to claim 3 is characterized by: An L-shaped reinforcing plate (8) is installed on the inner wall of the fixed frame (1), and fixing bolts (9) are installed inside the reinforcing plate (8) and the fixing plate (7).

5. The ultra-long 10,000-ton gantry pipe bending machine according to claim 1, characterized in that: A base (10) is fixed to the lower end of the interior of the fixed frame (1), and three groups of mounting rods (11) are installed inside the base (10).

6. The super-long 10,000-ton gantry pipe bending machine according to claim 5, characterized in that: The outer surfaces of the three groups of mounting rods (11) are rotatably connected to auxiliary rollers (12) via bearings, and the upper surface of the base (10) is fixed with two limit plates (13) fixed to the protective shell (2).

7. The super-long 10,000-ton gantry pipe bending machine according to claim 6, characterized in that: A sliding groove (14) is provided inside the limiting plate (13), and a sliding block (15) fixedly connected to the movable plate (4) is slidably connected inside the sliding groove (14).

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