CN219986017U

CN219986017U - Elbow pipe inner bending punching device

Info

Publication number: CN219986017U
Application number: CN202223607806.6U
Authority: CN
Inventors: 缪卫华; 吴辉
Original assignee: Suzhou Xinpengda Precision Machinery Co ltd
Current assignee: Suzhou Xinpengda Precision Machinery Co ltd
Priority date: 2022-12-31
Filing date: 2022-12-31
Publication date: 2023-11-10
Anticipated expiration: 2032-12-31

Abstract

The utility model discloses an elbow pipe inner bending punching device, which comprises an auxiliary tool, wherein the auxiliary tool comprises: the base is provided with a V-shaped surface, and a V-shaped groove is formed in the V-shaped surface; and the spring can movably extend into the bent pipe and is bent and deformed at the bending position of the bent pipe so as to support the inner wall of the bent pipe. The utility model supports and stabilizes the bent pipe by using the base, and the bent pipe is supported by arranging the spring to extend into the bent pipe, so that the problem of collapse and deformation at the bent pipe inner bending part caused by compression can be greatly avoided.

Description

Elbow pipe inner bending punching device

Technical Field

The utility model belongs to the technical field of sheet metal machining, and particularly relates to an elbow pipe inner bending punching device.

Background

As shown in fig. 1, in the prior art, the company needs to punch holes at the inner bending position of the bent pipe in the production and processing process. According to the knowledge of the prior art, the aim can be achieved by adopting a grinding mode after punching, but the related procedures are complex, and collapse deformation of the bent pipe inner bending part caused by the pressure of a drill bit in the punching process is difficult to avoid; punching is a more convenient and rapid process for forming holes in the prior art, but the punching needs a punching head to press a workpiece, and the problem of collapse and deformation at the inner bending position of the bent pipe is more difficult to avoid in the process.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model provides the following specific technical scheme:

the utility model provides a return bend intussuseption punching device, includes auxiliary fixtures, auxiliary fixtures includes:

the base is provided with a V-shaped surface, and a V-shaped groove is formed in the V-shaped surface;

and the spring can movably extend into the bent pipe and is bent and deformed at the bending position of the bent pipe so as to support the inner wall of the bent pipe.

Preferably, the spring and the connecting arm are fixedly connected to the connecting head, the connecting arm and the main body of the spring extend in the same direction, and the base is provided with a sliding groove in sliding fit with the connecting arm.

Preferably, the connecting arm is a non-revolving body, and the section of the sliding groove is the same as that of the connecting arm.

Preferably, a supporting rod is further arranged in the spring, one end of the supporting rod is fixed on the connecting head, a gap exists between the supporting rod and the spring, and the length of the supporting rod is smaller than that of the spring.

The beneficial effects of the utility model are as follows: the utility model supports and stabilizes the bent pipe by using the base, and the bent pipe is supported by arranging the spring to extend into the bent pipe, so that the problem of collapse and deformation at the bent pipe inner bending part caused by compression can be greatly avoided.

Drawings

Fig. 1 shows a schematic view of a prior art elbow 1;

FIG. 2 is a schematic structural view of an auxiliary tool;

fig. 3 shows a schematic view of the spring extending into the elbow.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments.

Fig. 1 is a schematic diagram of a bent pipe 1 in the prior art.

Fig. 2 is a schematic structural diagram of an auxiliary tool for solving the problem of punching at the inner bend of the bent pipe 1 in this embodiment. The auxiliary fixture comprises a base 10, wherein the top of the base 10 is provided with a V-shaped surface 11 matched with the shape of the bent pipe 1, a V-shaped groove for placing and fixing the bent pipe 1 is formed in the groove surface of the V-shaped surface 11, the bent pipe 1 is placed in the V-shaped groove, the initial fixing of the bent pipe 1 can be realized, and the inward bending of the bent pipe 1 is always towards the top.

With reference to fig. 2, the auxiliary tool further comprises a supporting device, the supporting device comprises a spring 31, a connector 32, a connecting arm 33 and a supporting rod 34, the spring 31, the connecting arm 33 and the supporting rod 34 are all connected to the connector 32, the supporting rod 34 is arranged on the inner side of the spring 31, the connecting arm 33 extends in the same direction with the main body of the spring 31, and a sliding groove which is in sliding fit with the connecting arm 33 is formed in the base 10.

Fig. 3 is a schematic view showing a state where the spring 31 is extended into the elbow pipe 1. When the inner bending part of the elbow pipe 1 needs to be punched, the elbow pipe 1 is placed in the V-shaped groove, then the sliding connecting arm 33 is used for placing the spring 31 into the elbow pipe 1 from the openings at the two ends of the elbow pipe 1, and continuously pressing the spring 31 into the elbow pipe 1 until the tail end of the spring 31 stretches into the bending part of the elbow pipe 1, at the moment, the elbow pipe 1 is filled with the spring 31, as the elastic deformation of the spring 31 mainly appears in the axial direction and radially tends to be round, the spring 31 has strong radial supporting and deformation resisting capabilities, when the spring 31 is filled in the elbow pipe 1, the spring 31 contacts with the inner wall of the elbow pipe 1 to play a supporting role on the elbow pipe 1, particularly at the bending part of the elbow pipe 1, the spring 31 can also bend and deform under the guidance of the inner wall of the elbow pipe 1, the gap of the spring 31 cannot influence the punching, and the punching head can be matched with the punching head to greatly avoid the problem of collapse deformation at the inner bending part due to the pressing. On the other hand, since the spring 31, the connector 32 and the connecting arm 33 are connected in sequence, the supporting device plays a role in supporting and renting the pipe wall through the spring 31 and also plays a role in fixing the bent pipe 1 through the whole supporting device.

In fig. 2 and 3, the supporting rod 34 is further disposed inside the spring 31, a gap exists between the supporting rod 34 and the spring 31, the length of the supporting rod 34 is smaller than that of the spring 31, the supporting rod 34 mainly plays a role in supporting the spring 31, the axial extensibility of the spring 31 is maintained, bending deformation of the spring 31 is avoided, a gap exists between the supporting rod 34 and the spring 31, the length of the supporting rod 34 is smaller than that of the spring 31, and the bending part of the bent pipe 1 can be filled with bending capability when the spring 31 contacts the bending part of the bent pipe 1.

In this embodiment, the connecting arm 33 has a non-revolving body shape such as a rectangle, a square, a triangle, etc., and the section of the chute provided on the base 10 and slidably engaged with the connecting arm 33 is the same as that of the connecting arm 33, so as to maintain stability of the supporting device during sliding, thereby avoiding the complicated operation problem of manually aligning the spring 31 to the elbow 1 during the operation of an operator.

In addition, it should be noted that, this embodiment provides a structure of an auxiliary tool designed to solve the problem of punching at the inner bend of the elbow pipe 1, and the problem of collapse deformation at the inner bend of the elbow pipe 1 can be solved by the auxiliary tool, and the punching head and the hydraulic system required for punching the elbow pipe 1 can be realized by the prior art, and the punching head is usually disposed above the base 10 and driven to move up and down to realize the purpose of punching, which is not a technical contribution of the present utility model, therefore, the part of the content is not shown in the specification and even the drawings of the specification, but the technical innovation content is not fully disclosed, clearly and completely recorded in the present embodiment.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting.

Claims

1. The utility model provides a return bend intussuseption punching device which characterized in that, includes auxiliary fixtures, auxiliary fixtures includes:

2. The bent pipe inner bending punching device according to claim 1, further comprising a connector and a connecting arm, wherein the spring and the connecting arm are fixedly connected to the connector, the connecting arm and the main body of the spring extend in the same direction, and a sliding groove in sliding fit with the connecting arm is formed in the base.

3. The elbow incurved punching device of claim 2, wherein the connecting arm is a non-rotating body, and the cross section of the chute is the same as the connecting arm.

4. The bent pipe inner bending punching device according to claim 2, wherein a supporting rod is further arranged in the spring, one end of the supporting rod is fixed on the connecting head, a gap exists between the supporting rod and the spring, and the length of the supporting rod is smaller than that of the spring.