CN219357518U - Profiling structure for bent pipe - Google Patents

Abstract

The utility model discloses a profiling structure for a bent pipe, which comprises a profiling body, wherein an arc-shaped groove for clamping a pipe is formed in one side of the profiling body, a hole avoidance area is formed in the arc-shaped groove at a position corresponding to a punched hole on the pipe, an inner supporting part for limiting and punching is arranged in the hole avoidance area, the structure is simple and easy to operate, the conception is ingenious, the technical problem that the pipe with the punched hole deforms in the bending process is skillfully solved, the production efficiency is improved, the outer side of the punched hole is protected through the hole avoidance area, the external part is prevented from being clamped in the bending process, the inner part of the punched hole is supported through the inner supporting part, the punched hole is prevented from deforming, the outer peripheral wall of the punched hole is effectively limited through an accommodating space formed by the cooperation of the inner supporting part and the hole avoidance area, and the deformation is further prevented when the bent pipe is bent.

Description

Profiling structure for bent pipe

Technical Field

The utility model relates to the technical field of metal pipe processing, in particular to a profiling structure for a bent pipe.

Background

The pipe bender clamps the pipe between the round die and the profiling die and between the round die and the clamping die, and turns the pipe around along with the cooperation of the round die and the clamping die. With the development of the numerical control machine tool industry, the advanced numerical control pipe bending machine tool is adopted to realize the winding process, so that the production efficiency can be greatly improved, and the product quality is ensured. Because the technological parameters can be conveniently adjusted, the numerical control pipe bending machine can accurately and stably finish the actions of straightening, rounding, feeding, bending and the like, and the bending accuracy of the pipe workpiece is ensured. However, when a punched hole is formed in the pipe, the pipe is bent, and in a normal case, an avoidance hole or an avoidance notch is designed on the round die, the clamping die or the profiling die to avoid that the punched hole is not clamped by the clamping die and the round die or the profiling die when the pipe is bent. However, although the design method effectively avoids the possibility of clamping damage of the punched hole, when the punched hole is too close to the arc of the bent pipe (smaller than 2 times of the diameter of the pipe), the arc of the pipe and the part close to the arc are deformed during the bending, and at the moment, the punched hole too close to the pipe is deformed, so that the defective rate is extremely high, and therefore, a profiling structure for the bent pipe is needed.

Disclosure of Invention

The utility model aims to solve the technical problems, and provides a profiling structure for a bent pipe.

The utility model provides a profiling structure for return bend, includes the profiling body, profiling body one side shaping has the arc recess that is used for centre gripping tubular product, its opposite side and profiling actuating mechanism fixed connection, the position department is equipped with the hole in the arc recess corresponding with punching a hole on the tubular product dodges the district, the hole dodges and is equipped with the interior supporting part that is used for spacing punching a hole in the district.

Preferably, the Kong Birang area is an avoiding hole.

Preferably, the inner support portion is cylindrical, the inner support portion and the hole avoidance region are coaxial, and the diameter of the inner support portion is smaller than the diameter of the Kong Birang region.

Preferably, one end of the inner supporting part is detachably fixed in the die leaning body, and the other end of the inner supporting part extends into the hole avoidance area.

Preferably, an annular punching accommodation space is formed between the inner support portion and the hole avoidance region.

Preferably, the ring width of the hole-punching accommodation space is adapted to the thickness of the hole to be punched, and the thickness of the hole to be punched is smaller than the ring width of the hole-punching accommodation space by 3-5 wires.

Preferably, a screw is fixed inside the explorator body, and the inner supporting part is fixed on the screw through threaded connection.

The utility model has the beneficial effects that:

the utility model discloses a profiling structure for a bent pipe, which comprises a profiling body, wherein an arc-shaped groove for clamping a pipe is formed in one side of the profiling body, a hole avoidance area is formed in the arc-shaped groove at a position corresponding to a punched hole on the pipe, an inner supporting part for limiting and punching is arranged in the hole avoidance area, the structure is simple and easy to operate, the conception is ingenious, the technical problem that the pipe with the punched hole deforms in the bending process is skillfully solved, the production efficiency is improved, the outer side of the punched hole is protected through the hole avoidance area, clamping injury to the outside in the bending process is prevented, the inner part of the punched hole is supported through the inner supporting part, deformation of the aperture of the punched hole is prevented, the outer peripheral wall of the punched hole is effectively limited through a containing space formed by matching of the inner supporting part and the hole avoidance area, and deformation during the bent pipe is further prevented.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a three-dimensional structure of a bent pipe according to the present utility model;

FIG. 2 is a schematic perspective view of a master body of the present utility model;

FIG. 3 is a schematic perspective view of the pipe bending process according to the present utility model;

fig. 4 is a cross-sectional view of the tube bending process of the present utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

The utility model bends a pipe with a punched hole 4 into a shape shown in figure 1, and because the punched hole 4 on the pipe is too close to the arc of the bent pipe (smaller than 2 times of the diameter of the pipe), the punched hole 4 can be deformed when a conventional pipe bender bends, and the profiling structure for the bent pipe is used for solving the technical problem.

The utility model provides a profiling structure for return bend, is including profiling body 1, profiling body 1 one side shaping has the arc recess 2 that is used for centre gripping tubular product 3, the shape size of arc recess 2 suits with tubular product 3, and its corresponding opposite side and profiling actuating mechanism fixed connection, actuating mechanism is the action that the hydro-cylinder is used for driving the profiling to press from both sides tightly or release tightly, and this is the conventional structure of bending machine so add not much more and repeating, the position department is equipped with hole avoidance district 5 corresponding with 4 on the tubular product 3 in the arc recess 2, be equipped with the internal support portion 6 that is used for spacing 4 of punching a hole in the hole avoidance district 5.

Specifically, the hole dodges district 5 is dodging the hole, interior supporting part 6 is cylindricly, interior supporting part 6 and hole dodges district 5 coaxial, interior supporting part 6 one end can be dismantled and be fixed in the profiling body 1, the inside screw that is fixed with of profiling body 1, interior supporting part 6 is fixed in on the screw through threaded connection, the other end of interior supporting part 6 extends to hole dodges in district 5, just the diameter of interior supporting part 6 is less than the diameter of Kong Birang district 5 to the shaping has annular accommodation space that punches a hole between the two, the annular width of accommodation space that punches a hole suits with the thickness that punches a hole, the thickness size that punches a hole 4 is less than the annular width size 3 ~ 5 silk that accommodation space that punches a hole neither produces the damage to the outside of 4, also is spacing in certain space to the peripheral wall that punches a hole 4, takes place to warp when preventing the return bend effectively.

In the concrete operation process, after the pipe 3 to be bent enters, the explorator body 1 moves towards the round die 7 under the drive of the driving mechanism to clamp and limit the pipe 3, the punched hole 4 on the pipe 3 is just positioned in the hole avoidance area 5, the inner supporting part 6 is inserted in the punched hole 4, the clamping die 8 and the round die 7 are mutually matched and rotated to carry out non-destructive deformation bending on the pipe 3, the pipe bending device is simple in structure and easy to operate, the conception is ingenious, the technical difficulty is simple and easy to operate through the matched design of the inner supporting part 6 and the hole avoidance area 5, the production efficiency is improved, the outer side of the punched hole 4 is protected through the hole avoidance area 5, clamping injury is prevented from being generated in the bending process, the inner part of the punched hole 4 is supported through the inner supporting part 6, deformation is prevented from being generated, the outer peripheral wall of the punched hole 4 is effectively limited through the accommodating space formed by the matching of the inner supporting part 6 and the hole avoidance area 5, and deformation is further prevented.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (7)

1. The utility model provides a profiling structure for return bend which characterized in that: including profiling body (1), profiling body (1) one side shaping has arc recess (2) that are used for centre gripping tubular product (3), and its opposite side and profiling actuating mechanism fixed connection that corresponds, the department is equipped with hole avoidance district (5) in arc recess (2) corresponding with punch a hole (4) on tubular product (3), be equipped with in Kong Birang district (5) and be used for spacing internal support portion (6) that punch a hole (4).

2. The profiling structure for the elbow according to claim 1, wherein: the Kong Birang area (5) is an avoidance hole.

3. The profiling structure for the elbow according to claim 1, wherein: the inner support part (6) is cylindrical, the inner support part (6) and the hole avoidance area (5) are coaxial, and the diameter of the inner support part (6) is smaller than the diameter of the Kong Birang area (5).

4. The profiling structure for the elbow according to claim 1, wherein: one end of the inner supporting part (6) is detachably fixed in the explorator body (1), and the other end of the inner supporting part extends into the hole avoidance area (5).

5. A profile structure for a curved tube as claimed in claim 3, wherein: an annular punching accommodating space is formed between the inner supporting part (6) and the hole avoiding area (5).

6. The profiling structure for the elbow according to claim 5, wherein: the ring width of the punching accommodating space is adapted to the thickness of the punching, and the thickness dimension of the punching (4) is smaller than the ring width dimension of the punching accommodating space by 3-5 wires.

7. The profiling structure for the elbow according to claim 1, wherein: the inner support part (6) is fixed on the screw through threaded connection.