Pipe bending device

Abstract

The utility model relates to a pipe bending device which comprises a feeding assembly, a bending assembly arranged on one side of a metal pipe fitting recommended direction of the feeding assembly, and a positioning assembly which comprises a displacement unit, a front end limiting unit and a rear end limiting unit, the displacement unit is arranged on the bending assembly, the front end limiting unit is arranged on the displacement unit, and the rear end limiting unit is arranged on the front end limiting unit. The rear-end limiting unit is arranged on the front-end limiting unit, a pushed metal pipe firstly passes through the front-end limiting unit and then enters the bending assembly, then after the metal pipe turns from bottom to top, the displacement unit drives the front-end limiting unit to move to the metal pipe entering end of the bending assembly, and then the metal pipe enters the bending assembly; and meanwhile, the rear end limiting unit passes through the position above the bending assembly and moves to the bending part of the metal pipe, then the front end limiting unit operates, and the rear end limiting unit positions the metal pipe located in the bending assembly and assists the bending assembly in accurately clamping the metal pipe, so that the possibility that the metal pipe is dislocated, extruded, deformed and scrapped is reduced.

Description

Technical Field

[0001] The utility model relates to the field of metal part processing, and particularly relates to a pipe bending device. Background Art

[0002] Metal part bending refers to a processing method in which a pipe is bent into a required shape by an external force. For example, for metal pipe bending, the metal pipe is placed on the feeding component on the workbench, and then the feeding component guides the pipe to the bending component to perform bending processing on the pipe fitting. At the same time, the feeding component cooperates with the bending component for feeding and bending to achieve multi-segment bending of the pipe, which is used for processing workpieces with complex shapes.

[0003] At present, when the existing pipe bending device bends a metal pipe with a complex shape, as the metal pipe fitting continues to advance, the proportion of the metal pipe fittings on both sides of the bending component of the pipe bending device changes. When the heavier bending part rotates from the lower part to the upper part, the bending part will drive the entire metal pipe to shake, and then the part of the metal pipe between the bending components cannot be aligned. If no manual intervention is carried out and the metal pipe is directly clamped, the metal pipe may be deformed by extrusion caused by misalignment, resulting in the scrapping of the workpiece to be formed. Summary of the Utility Model

[0004] Based on the above description, the utility model provides a pipe bending device to solve the problems that the metal pipe shakes during bending and turning, and the metal pipe may be deformed and scrapped during clamping.

[0005] The technical solution for the utility model to solve the above technical problems is as follows:

[0006] A pipe bending device, comprising:

[0007] A feeding assembly, which is used for advancing and bending the metal pipe fitting;

[0008] A bending assembly, which is arranged on one side of the metal pipe fitting recommended direction of the feeding assembly;

[0009] A positioning assembly, which includes a displacement unit, a front-end limiting unit, and a rear-end limiting unit. Among them,

[0010] The displacement unit is arranged on the bending assembly;

[0011] The front-end limiting unit is arranged on the displacement unit and is used for limiting the advancing metal pipe fitting;

[0012] The rear-end limiting unit is arranged on the front-end limiting unit and is used for limiting the bending part of the metal pipe fitting.

[0013] Based on the above technical solution, the utility model can also be improved as follows.

[0014] Further, the displacement unit includes end plates separately arranged on the bending assembly, a track is arranged on the bending assembly between the end plates, and a driving member is arranged between the end plates.

[0015] Further, the front-end limiting unit includes a fixed seat arranged between the track and the driving member, an installation groove is formed on the fixed seat, a power member is arranged in the installation groove, the output end of the power member penetrates through the fixed seat, and a movable seat is arranged on the output end of the power member.

[0016] Further, a groove is formed on the fixed seat, a buffer member is arranged in the groove, a protective pad is arranged on the movable seat, and the buffer member and the protective pad are distributed in an up-and-down alignment.

[0017] Further, a guide rod is arranged on the movable seat, a jack is formed on the fixed seat, and one end of the guide rod extends into the jack.

[0018] Further, the rear-end limiting unit includes a mounting bracket arranged on the movable seat, an elastic member is arranged on the mounting bracket, and a positioning member is arranged at one end of the elastic member far away from the mounting bracket.

[0019] Further, a guide plate is arranged on the movable seat, and one end of the elastic member can move along the guide plate.

[0020] Further, one end of the positioning member far away from the elastic member is bent, and an opening is arranged at one end of the positioning member.

[0021] Compared with the prior art, the technical solution of the present application has the following beneficial technical effects:

[0022] By providing a feeding assembly, a bending assembly and a positioning assembly, through the cooperation of the front-end limiting unit and the bending assembly, the metal pipe pushed in from the feeding assembly first passes through the front-end limiting unit and then enters the bending assembly. Subsequently, after the metal pipe makes a turning movement from bottom to top, the displacement unit drives the front-end limiting unit to move to the metal pipe inlet end of the bending assembly, and at the same time, the rear-end limiting unit passes above the bending assembly and moves to the bent part of the metal pipe. Then, the front-end limiting unit operates, and together with the rear-end limiting unit, positions the metal pipe located in the bending assembly, assisting the bending assembly to accurately clamp the metal pipe, realizing the restriction of the turned metal pipe, and reducing the possibility of the metal pipe being misaligned, squeezed and deformed and scrapped. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of a pipe bending device provided by an embodiment of the present invention;

[0024] Figure 2 is Figure 1 a schematic structural diagram of another perspective of

[0025] Figure 3 This is a schematic structural diagram of the positioning component in the embodiment of the present utility model;

[0026] Figure 4 This is a schematic cross-sectional structure diagram of the fixed seat in the embodiment of the present utility model;

[0027] In the drawings, the list of components represented by each reference numeral is as follows:

[0028] 1. Feeding component; 2. Bending component; 3. Positioning component; 31. Displacement unit; 311. End plate; 312. Track; 313. Driving member; 32. Front-end limiting unit; 321. Fixed seat; 322. Power member; 323. Movable seat; 33. Rear-end limiting unit; 331. Mounting frame; 332. Elastic member; 333. Positioning member. Detailed implementation manners

[0029] To facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant drawings. Embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used in the specification of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0031] It can be understood that spatial relationship terms such as "under", "below", "lower", "beneath", "above", "upper", etc. can be used herein to describe the relationship between one element or feature shown in the drawings and other elements or features. It should be understood that in addition to the orientation shown in the drawings, spatial relationship terms also include different orientations of the device during use and operation. For example, if the device in the drawing is flipped, the element or feature described as "under other elements" or "beneath it" or "under it" will be oriented "above" other elements or features. Therefore, the exemplary terms "under" and "below" can include both the upper and lower orientations. In addition, the device can also include other orientations (for example, rotated 90 degrees or other orientations), and the spatial description terms used herein are accordingly interpreted.

[0032] Please refer to Figures 1-4, A pipe bending device, comprising a feeding component 1, a bending component 2 and a positioning component 3. The bending component 2 is arranged on one side of the feeding component 1 in the recommended direction of the metal pipe. The positioning component 3 includes a displacement unit 31 arranged on the bending component 2, a front-end limiting unit 32 is arranged on the displacement unit 31, and a rear-end limiting unit 33 is arranged on the front-end limiting unit 32.

[0033] Based on the above, in the present utility model, by installing the positioning component 3 on the advancing section of the metal pipe between the feeding component 1 and the bending component 2, so that the metal pipe first passes through the front-end limiting unit 32 and then enters the bending component 2. In this way, when the subsequent pipe fittings turn and shake from bottom to top, the displacement unit 31 pushes the front-end limiting unit 32 to move to the metal pipe inlet end of the bending component 2. At the same time, the rear-end limiting unit 33 moves over the bending component 2 to the metal pipe outlet end and approaches the bent part of the metal pipe. Finally, the front-end limiting unit 32 operates, cooperating with the rear-end limiting unit 33 to limit the bent pipe, so that it is positioned between the bending components 2 for auxiliary clamping, realizing the limitation of the metal pipe after turning, and reducing the possibility of the metal pipe being misaligned, squeezed and deformed and scrapped.

[0034] Please refer to Figures 1-4 , The displacement unit 31 includes end plates 311 separately arranged on the bending component 2. There is a track 312 on the bending component 2 located between the end plates 311, and a driving member 313 is arranged between the end plates 311.

[0035] In the prior art during the bending process of the metal pipe, the bent part of the metal pipe will bend towards the metal pipe inlet end of the bending member. Therefore, in this embodiment, through the cooperation of the track 312 and the driving member 313 with optional screw drive, the position of the front-end limiting unit 32 on the bending component 2 is adjusted. When the metal pipe feeds normally without abnormality, the front-end limiting unit 32 stays close to the feeding component 1, which can avoid the front-end limiting unit 32 being arranged close to the bending component 2 and hindering the bending of the metal pipe.

[0036] When the above front-end limiting unit 32 is adjusted between the track 312 and the driving member 313, the front-end limiting unit 32 includes a fixed seat 321 arranged between the track 312 and the driving member 313. An installation groove is opened on the fixed seat 321, a power member 322 is arranged in the installation groove, the output end of the power member 322 penetrates through the fixed seat 321, a movable seat 323 is arranged on the output end of the power member 322, a guide rod is arranged on the movable seat 323, and a jack is opened on the fixed seat 321, and one end of the guide rod extends into the jack.

[0037] The fixed seat 321 is combined with the track 312 and the driving member 313, and cooperates with the movable seat 323 driven by the power member 322 which is preferably an electric hydraulic cylinder, to keep it normally open for the metal pipe to feed through. When the metal pipe sways from bottom to top, the driving member 313 drives the fixed seat 321 to move towards the feeding end of the bending assembly 2. Subsequently, the power member 322 drives the movable seat 323 to move, so that with the assistance of the guide rod and the jack, it descends stably and cooperates with the fixed seat 321 to restrict the metal pipe.

[0038] Based on the clamping and restriction of the fixed seat 321 and the movable seat 323, in this embodiment, a groove is provided on the fixed seat 321, a buffer member is arranged in the groove, a protective pad is arranged on the movable seat 323, and the buffer member and the protective pad are distributed in a vertically aligned manner.

[0039] The buffer member in the form of a sandbag in the groove of the fixed seat 321 cooperates with the protective pad on the movable seat 323 to clamp the metal pipe, which can suppress the impact during the swaying of the metal pipe and avoid direct contact of the metal pipe with the fixed seat 321 and the movable seat 323, thus preventing impact.

[0040] Please refer to Figures 1-4 , the rear end limiting unit 33 includes a mounting bracket 331 arranged on the movable seat 323, an elastic member 332 is arranged on the mounting bracket 331, a positioning member 333 is arranged at one end of the elastic member 332 away from the mounting bracket 331, the end of the positioning member 333 away from the elastic member 332 is bent, and an opening is provided at one end of the positioning member 333.

[0041] When the above-mentioned rear end limiting unit 33 follows and moves above the bending assembly 2 to the extending end of the metal pipe, when the movable seat 323 descends, the mounting bracket 331 follows and drives the elastic member 332 to descend, thereby driving the positioning member 333 to move towards the metal pipe. After the movable seat 323 restricts the metal pipe, the positioning member 333 forks on the metal pipe through the opening, so as to limit one end of the bent part of the metal pipe and realize the positioning of the metal pipe between the bending assemblies 2.

[0042] Considering that the positioning member 333 may be squeezed when contacting the metal pipe, by using an elastic telescopic tube for the elastic member 332, the extrusion contact between the positioning member 333 and the metal pipe can be adjusted. And because the impact resistance of the extending end of the elastic member 332 is poor, a guide plate is arranged on the movable seat 323, and one end of the elastic member 332 can move along the guide plate. The guide plate supports the elastic member 332, and cooperates with the positioning member 333 to descend to restrict the metal pipe, which enhances the impact resistance of the elastic member 332.

[0043] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A pipe bending device, characterized in that, including a feeding component (1) for pushing and bending metal pipe fittings; a bending component (2) arranged on one side of the metal pipe fitting recommended direction of the feeding component (1); a positioning component (3) including a displacement unit (31), a front-end limiting unit (32) and a rear-end limiting unit (33), wherein, the displacement unit (31) is arranged on the bending component (2); the front-end limiting unit (32) is arranged on the displacement unit (31) and is used for limiting the advancing metal pipe fitting; the rear-end limiting unit (33) is arranged on the front-end limiting unit (32) and is used for limiting the bent part of the metal pipe fitting.

2. The elbow pipe device according to claim 1, characterized in that, The displacement unit (31) includes end plates (311) separately arranged on the bending component (2), a track (312) is arranged on the bending component (2) between the end plates (311), and a driving member (313) is arranged between the end plates (311).

3. The elbow pipe device according to claim 2, characterized in that, The front-end limiting unit (32) includes a fixed seat (321) arranged between the track (312) and the driving member (313), an installation groove is formed in the fixed seat (321), a power member (322) is arranged in the installation groove, the output end of the power member (322) penetrates through the fixed seat (321), and a movable seat (323) is arranged on the output end of the power member (322).

4. The elbow pipe device according to claim 3, characterized in that, A groove is formed in the fixed seat (321), a buffer member is arranged in the groove, a protective pad is arranged on the movable seat (323), and the buffer member and the protective pad are distributed in an up-and-down alignment.

5. The elbow pipe device according to claim 3, characterized in that, A guide rod is arranged on the movable seat (323), a jack is formed in the fixed seat (321), and one end of the guide rod extends into the jack.

6. The elbow pipe device according to claim 3, characterized in that, The rear-end limiting unit (33) includes a mounting bracket (331) arranged on the movable seat (323), an elastic member (332) is arranged on the mounting bracket (331), and a positioning member (333) is arranged at one end of the elastic member (332) away from the mounting bracket (331).

7. The elbow pipe device according to claim 6, characterized in that, A guide plate is arranged on the movable seat (323), and one end of the elastic member (332) can move along the guide plate.

8. The elbow pipe device according to claim 6, characterized in that, One end of the positioning member (333) away from the elastic member (332) is bent, and an opening is arranged at one end of the positioning member (333).

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