Hydraulic pipe bending equipment for thick-wall pipe

Abstract

The utility model discloses hydraulic pipe bending equipment for thick-wall pipes. The hydraulic pipe bending equipment comprises a second connecting plate and first fixing columns arranged on the left side and the right side of the upper end of the second connecting plate. When the hydraulic pipe bending equipment for the thick-wall pipe is used, a hydraulic cylinder is firstly connected with a hydraulic machine through a hydraulic pipe, then the thick-wall pipe is clamped into the inner sides of a first fixing column and a second fixing column, and then a first limiting lantern ring and a second limiting lantern ring move downwards, so that an arc-shaped limiting plate extrudes the thick-wall pipe; an arc-shaped protection pad installed at the lower end of the arc-shaped limiting plate can protect the thick-wall pipe, then a hydraulic cylinder is controlled through a hydraulic machine, a hydraulic rod in the hydraulic cylinder is made to move in advance, then the thick-wall pipe is bent, and a first limiting lantern ring, a second limiting lantern ring, a limiting rotary knob and the arc-shaped limiting plate are arranged; the thick-wall pipe can be limited through the arc-shaped protective pad, and the thick-wall pipe can be protected through the arc-shaped protective pad.

Description

Technical Field

[0001] The utility model belongs to the technical field related to metal pipe processing, and in particular relates to a hydraulic pipe bending device used for thick-walled pipes. Background Art

[0002] Hydraulic pipe bending equipment is a mechanical equipment used to bend metal pipes. It bends metal pipes into required shapes and angles by applying hydraulic pressure and mechanical principles. Hydraulic pipe bending equipment is widely used in pipelines, automobile manufacturing, aerospace and other fields to produce bent pipe products of various shapes and angles. It has the characteristics of high precision, high efficiency and stability, and can meet the needs of different industries for pipe bending. Hydraulic pipe bending equipment is also needed for the processing of thick-walled pipes. The existing hydraulic pipe bending equipment for thick-walled pipes is mainly composed of a first connecting plate, a second connecting plate, a support column, a support pad, a first fixed column, a second fixed column, a hydraulic cylinder, a hydraulic rod, a mounting plate, a hydraulic pipe and other components. The existing hydraulic pipe bending equipment for thick-walled pipes will cause damage to the thick-walled pipes if the restrictions on the thick-walled pipes are too tight during use, and the restrictions are too loose, which will affect the quality of the bending. Therefore, a hydraulic pipe bending equipment for thick-walled pipes is indispensable. Utility Model Content

[0003] The utility model aims to provide a hydraulic pipe bending device for thick-walled pipes, so as to solve the problem in the above background technology that if the existing hydraulic pipe bending device for thick-walled pipes is used, the thick-walled pipes may be damaged if the restriction is too tight, while the quality of the bending may be affected if the restriction is too loose.

[0004] To achieve the above purpose, the utility model provides the following technical solutions: a hydraulic pipe bending device for thick-walled pipes, comprising

[0005] A second connecting plate and first fixing columns arranged at left and right sides of an upper end of the second connecting plate;

[0006] A second fixing column is provided at the upper end of the second connecting plate and at the rear side of the first fixing column;

[0007] A first connecting plate is connected to the upper ends of the first fixing column and the second fixing column;

[0008] A connection block is installed at the upper end of the first connection plate and the lower end of the second connection plate;

[0009] A mounting plate is provided on the inner side of the connecting block and at the rear side of the first connecting plate and the second connecting plate;

[0010] A hydraulic cylinder is installed at the rear side of the mounting plate, and a hydraulic pipe is connected to the rear side of the hydraulic cylinder;

[0011] A hydraulic rod is arranged inside the hydraulic cylinder and at the front side of the mounting plate;

[0012] The first limiting ring and the second limiting ring are respectively installed at the external position of the first fixing column and the second fixing column, and the first limiting ring and the second limiting ring are both provided with limiting knobs at the external position, and the first limiting ring and the second limiting ring are connected with arc-shaped limiting plates at the internal position, and the lower end position of the arc-shaped limiting plate is connected with an arc-shaped protective pad. The arrangement of the first limiting ring, the second limiting ring, the limiting knob and the arc-shaped limiting plate can limit the thick-walled tube, and the arrangement of the arc-shaped protective pad can protect the thick-walled tube.

[0013] Preferably, a limiting hole is provided inside the first limiting collar and the second limiting collar and at an outer position of the limiting knob.

[0014] Preferably, the inner wall of the limiting hole is provided with an internal thread, and the outer wall of the limiting knob is provided with an external thread.

[0015] Preferably, the limiting knob is connected to the internal thread of the inner wall of the limiting hole through the external thread of the outer wall, so that the limiting knob squeezes the first fixing column and the second fixing column, thereby fixing the first limiting ring and the second limiting ring to the first fixing column and the second fixing column respectively.

[0016] Preferably, the first fixing column and the second fixing column are fixedly connected to the first connecting plate and the second connecting plate by welding, and the first fixing column, the second fixing column, the first connecting plate and the second connecting plate are all made of stainless steel.

[0017] Preferably, support columns are provided at left and right sides of the lower end of the second connecting plate and at the lower end of the hydraulic cylinder.

[0018] Preferably, a support pad is connected to the lower end of the support column, and the support column is fixedly connected to the second connecting plate and the hydraulic cylinder by welding.

[0019] Compared with the prior art, the utility model provides a hydraulic pipe bending device for thick-walled pipes, which has the following beneficial effects:

[0020] The utility model improves a hydraulic pipe bending device for thick-walled pipes. When the hydraulic pipe bending device for thick-walled pipes is used, the hydraulic cylinder is first connected to the hydraulic press through the hydraulic pipe, and then the thick-walled pipe is clamped into the inner sides of the first fixing column and the second fixing column, and then the first limiting ring and the second limiting ring are moved downward, so that the arc limiting plate squeezes the thick-walled pipe, and the arc-shaped protective pad installed at the lower end of the arc limiting plate can protect the thick-walled pipe, and then the first limiting ring and the second limiting ring are fixed by the limiting knob, so as to limit the thick-walled pipe, and then the hydraulic cylinder is controlled by the hydraulic press, so that the hydraulic rod inside the hydraulic cylinder moves forward, and then the thick-walled pipe is bent, and the thick-walled pipe can be restricted by the arrangement of the first limiting ring, the second limiting ring, the limiting knob and the arc limiting plate, and the arrangement of the arc-shaped protective pad can protect the thick-walled pipe, so as to avoid damage to the thick-walled pipe caused by too tight restriction on the thick-walled pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The utility model is a schematic diagram of the overall structure of the hydraulic pipe bending equipment for thick-walled pipes.

[0022] Figure 2 It is a schematic diagram of the enlarged structure of the limiting sleeve of the hydraulic pipe bending equipment for thick-walled pipes of the utility model.

[0023] Figure 3 It is a structural schematic diagram of an enlarged side surface of a limiting collar of a hydraulic pipe bending device for thick-walled pipes of the utility model.

[0024] In the figure: 1. first connecting plate; 2. second connecting plate; 3. support column; 4. support pad; 5. first fixing column; 6. second fixing column; 7. limiting knob; 8. first limiting collar; 9. second limiting collar; 10. hydraulic cylinder; 11. mounting plate; 12. hydraulic rod; 13. connecting block; 14. hydraulic pipe; 15. limiting hole; 16. arc limiting plate; 17. arc protective pad. 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 Figure 1-3The hydraulic pipe bending device for thick-walled pipes shown in the figure is a hydraulic pipe bending device for thick-walled pipes, comprising a second connecting plate 2 and a first fixing column 5 arranged at the left and right sides of the upper end of the second connecting plate 2; a second fixing column 6 is arranged at the upper end of the second connecting plate 2 and at the rear side of the first fixing column 5; the first connecting plate 1 is connected to the upper end of the first fixing column 5 and the second fixing column 6; a connecting block 13 is installed at the upper end of the first connecting plate 1 and the lower end of the second connecting plate 2; a mounting plate 11 is arranged on the inner side of the connecting block 13 and at the rear side of the first connecting plate 1 and the second connecting plate 2; a hydraulic cylinder 10 is installed at the rear side of the mounting plate 11, and a hydraulic cylinder 10 is connected to the rear side of the hydraulic cylinder 10 A pressure pipe 14; a hydraulic rod 12 is arranged inside the hydraulic cylinder 10 and at the front side of the mounting plate 11; the first limiting ring 8 and the second limiting ring 9 are respectively installed at the external positions of the first fixed column 5 and the second fixed column 6, and the limiting knob 7 is arranged at the outer position of the first limiting ring 8 and the second limiting ring 9, and the inner position of the first limiting ring 8 and the second limiting ring 9 is connected with an arc-shaped limiting plate 16, and the lower end position of the arc-shaped limiting plate 16 is connected with an arc-shaped protective pad 17. The arrangement of the first limiting ring 8, the second limiting ring 9, the limiting knob 7 and the arc-shaped limiting plate 16 can limit the thick-walled tube, and the arrangement of the arc-shaped protective pad 17 can protect the thick-walled tube.

[0027] like Figure 1 , Figure 2 and Figure 3 As shown, in order to limit the thick-walled pipe, when using the hydraulic pipe bending equipment for thick-walled pipes, first connect the hydraulic cylinder 10 to the hydraulic press through the hydraulic pipe 14, then insert the thick-walled pipe into the inner side of the first fixing column 5 and the second fixing column 6, then move the first limiting collar 8 and the second limiting collar 9 downward, so that the arc limiting plate 16 squeezes the thick-walled pipe, and the arc-shaped protective pad 17 installed at the lower end of the arc limiting plate 16 protects the thick-walled pipe, and then the first limiting knob 7 is used to limit the first limiting plate 16. The limiting collar 8 and the second limiting collar 9 are fixed, thereby limiting the thick-walled tube. At this time, the hydraulic cylinder 10 is controlled by the hydraulic press, so that the hydraulic rod 12 inside the hydraulic cylinder 10 moves forward, and then the thick-walled tube is bent. The first limiting collar 8, the second limiting collar 9, the limiting knob 7 and the arc-shaped limiting plate 16 are set to limit the thick-walled tube, and the arc-shaped protective pad 17 is set to protect the thick-walled tube, thereby avoiding damage to the thick-walled tube caused by too tight restriction.

[0028] A limiting hole 15 is provided inside the first limiting ring 8 and the second limiting ring 9 and at the outer side of the limiting knob 7. The inner wall of the limiting hole 15 is provided with an internal thread, and the outer wall of the limiting knob 7 is provided with an external thread. The limiting knob 7 is connected with the internal thread of the inner wall of the limiting hole 15 via the external thread of the outer wall, so that the limiting knob 7 squeezes the first fixing column 5 and the second fixing column 6, thereby fixing the first limiting ring 8 and the second limiting ring 9 to the first fixing column 5 and the second fixing column 6 respectively.

[0029] like Figure 2 and Figure 3 As shown, in order to facilitate the placement of thick-walled pipes, when using the hydraulic pipe bending equipment for thick-walled pipes, first, the first limiting ring 8 and the second limiting ring 9 are respectively put on the outside of the first fixing column 5 and the second fixing column 6, and then the first fixing column 5 and the second fixing column 6 are fixedly connected to the first connecting plate 1 and the second connecting plate 2 by welding, and then the thick-walled pipe is inserted into the inner side of the first fixing column 5 and the second fixing column 6, and then the first limiting ring 8 and the second limiting ring 9 are moved downward, so that the arc-shaped limiting plate 16 squeezes the thick-walled pipe, and then the limiting knob 7 is connected with the internal thread of the inner wall of the limiting hole 15 through the external thread of the outer wall, so that the limiting knob 7 fixes the first limiting ring 8 and the second limiting ring 9, thereby limiting the thick-walled pipe, and the arrangement of the first fixing column 5 and the second fixing column 6 facilitates the placement of the thick-walled pipe, so that the thick-walled pipe can be better bent.

[0030] The first fixing column 5 and the second fixing column 6 are fixedly connected to the first connecting plate 1 and the second connecting plate 2 by welding. The first fixing column 5, the second fixing column 6, the first connecting plate 1 and the second connecting plate 2 are all made of stainless steel. Support columns 3 are arranged on the left and right sides of the lower end of the second connecting plate 2 and the lower end of the hydraulic cylinder 10. The lower end of the support column 3 is connected to a support pad 4. The support column 3 is fixedly connected to the second connecting plate 2 and the hydraulic cylinder 10 by welding.

[0031] like Figure 1 As shown, in order to enhance the stability of the hydraulic pipe bending equipment for thick-walled pipes, when using the hydraulic pipe bending equipment for thick-walled pipes, first connect the support column 3 with the support pad 4, and then weld the support column 3 to the left and right sides of the lower end of the second connecting plate 2 and the lower end of the hydraulic cylinder 10, and then contact the hydraulic pipe bending equipment for thick-walled pipes with the ground through the support pad 4, so that the hydraulic pipe bending equipment for thick-walled pipes is placed on the ground through the support column 3. Through the arrangement of the support column 3 and the support pad 4, the stability of the hydraulic pipe bending equipment for thick-walled pipes is enhanced, so that the hydraulic pipe bending equipment for thick-walled pipes can better bend the thick-walled pipes.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydraulic pipe bending device for thick-walled pipes, comprising: A second connecting plate (2) and first fixing columns (5) arranged at left and right sides of an upper end of the second connecting plate (2); A second fixing column (6) is provided at the upper end of the second connecting plate (2) and at a rear side of the first fixing column (5); A first connecting plate (1) is connected to the upper ends of the first fixing column (5) and the second fixing column (6); A connection block (13) is installed at the upper end of the first connection plate (1) and the lower end of the second connection plate (2); A mounting plate (11) is provided on the inner side of the connecting block (13) and at the rear side of the first connecting plate (1) and the second connecting plate (2); A hydraulic cylinder (10) is installed at the rear side of the mounting plate (11), and a hydraulic pipe (14) is connected to the rear side of the hydraulic cylinder (10); A hydraulic rod (12) is arranged inside the hydraulic cylinder (10) and at a front side position of the mounting plate (11); Features: A first limiting collar (8) and a second limiting collar (9) are respectively installed at the external positions of the first fixing column (5) and the second fixing column (6); limiting knobs (7) are arranged at the external positions of the first limiting collar (8) and the second limiting collar (9); an arc-shaped limiting plate (16) is connected to the internal positions of the first limiting collar (8) and the second limiting collar (9); an arc-shaped protective pad (17) is connected to the lower end position of the arc-shaped limiting plate (16); by arranging the first limiting collar (8), the second limiting collar (9), the limiting knob (7) and the arc-shaped limiting plate (16), a limiting effect can be exerted on the thick-walled tube, while by arranging the arc-shaped protective pad (17), a protective effect can be exerted on the thick-walled tube.

2. A hydraulic pipe bending device for thick-walled pipes according to claim 1, characterized in that: A limiting hole (15) is provided inside the first limiting collar (8) and the second limiting collar (9) and at an outer position of the limiting knob (7).

3. A hydraulic pipe bending device for thick-walled pipes according to claim 2, characterized in that: The inner wall of the limiting hole (15) is provided with an internal thread, and the outer wall of the limiting knob (7) is provided with an external thread.

4. A hydraulic pipe bending device for thick-walled pipes according to claim 3, characterized in that: The limiting knob (7) is connected to the internal thread of the inner wall of the limiting hole (15) via the external thread of the outer wall, so that the limiting knob (7) squeezes the first fixing column (5) and the second fixing column (6), thereby fixing the first limiting ring (8) and the second limiting ring (9) to the first fixing column (5) and the second fixing column (6) respectively.

5. A hydraulic pipe bending device for thick-walled pipes according to claim 4, characterized in that: The first fixing column (5) and the second fixing column (6) are fixedly connected to the first connecting plate (1) and the second connecting plate (2) by welding, and the first fixing column (5), the second fixing column (6), the first connecting plate (1) and the second connecting plate (2) are all made of stainless steel.

6. A hydraulic pipe bending device for thick-walled pipes according to claim 5, characterized in that: Support columns (3) are provided at the left and right sides of the lower end of the second connecting plate (2) and at the lower end of the hydraulic cylinder (10).

7. A hydraulic pipe bending device for thick-walled pipes according to claim 6, characterized in that: A support pad (4) is connected to the lower end of the support column (3), and the support column (3) is fixedly connected to the second connecting plate (2) and the hydraulic cylinder (10) by welding.

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