CN217315325U

CN217315325U - Pipe bending tool

Info

Publication number: CN217315325U
Application number: CN202122905084.1U
Authority: CN
Inventors: 钱钧弢; 刘金
Original assignee: Dibier Pharmaceutical Equipment Shanghai Co ltd
Current assignee: Dibier Pharmaceutical Equipment Shanghai Co ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-08-30
Anticipated expiration: 2031-11-25

Abstract

The utility model discloses a return bend frock contains: the three-roller plate bending machine has the advantages that the distance between three rollers is adjustable; and the pipe bending module is connected with the three-roller plate bending machine and is used for coiling and forming an external coil pipe. The utility model discloses increase the bending module on current three-roller plate bending machine to can realize the pipe bending, and do not influence the book board operation of former three-roller plate bending machine, increase the versatility of three-roller plate bending machine, and the interval through the three roller of former three-roller plate bending machine is adjusted, realize indirectly that the interval of bending module return bend is adjusted, thereby also can realize the different coil pipe diameters of system of bending.

Description

Pipe bending tool

Technical Field

The utility model relates to a pressure vessel produces auxiliary assembly, in particular to return bend frock.

Background

A pressure vessel is a closed vessel that can withstand pressure. The pressure container has wide application range, and has important position and function in many departments of industry, civil use, military industry and the like and many fields of scientific research. Among them, the pressure vessels used in the petrochemical industry alone account for about 50% of the total number of pressure vessels, in order to be used in the chemical industry and the petrochemical industry at most.

Coil tube structures are often encountered during the production of pressure vessels. The coil pipe is usually rolled and formed through the tool, the coil pipe has different diameters, and the used rolling tools are different.

Disclosure of Invention

According to the embodiment of the utility model provides a return bend frock contains:

a three-roller plate bending machine;

and the bent pipe module is connected with the three-roller plate bending machine and is used for performing coil pipe rolling forming on the outside.

Further, the bending module comprises:

the three connecting shafts are respectively connected with three rollers of the three-roller plate bending machine;

the pair of bent pipe discs are respectively connected with the two connecting shafts positioned at the bottom;

the pipe bending groove is formed in the pipe bending disc.

Further, the bending module further comprises:

the key groove is formed in the inner side of the pipe bending disc;

the connecting key is arranged on the connecting shaft and clamped with the key groove and used for fixing the bent pipe disc on the connecting shaft.

Further, the centers of the pair of elbow disks are located on the same horizontal line.

Further, the number of the elbow grooves can be several.

Further, a pair of pipe bending disks are symmetrically arranged with a vertical center line of the connecting shaft at the top.

Further, the number of the pair of elbow disks may be several pairs.

According to the utility model discloses return bend frock increases the bending die piece on current three-roller plate bending machine to can realize the return bend and handle, and do not influence the roll board operation of former three-roller plate bending machine, increase the versatility of three-roller plate bending machine, and the interval through the three roller of former three-roller plate bending machine is adjusted, indirectly realizes the interval of bending die piece return bend and adjusts, thereby also can realize the different coil pipe diameters of system of bending.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and are intended to provide further explanation of the claimed technology.

Drawings

Fig. 1 is a main view structure diagram of the pipe bending tool according to the embodiment of the present invention.

Fig. 2 is a front view schematic sectional structure diagram of the elbow pipe disc of the elbow pipe tool according to the embodiment of the present invention.

Fig. 3 is a left side view cross-sectional structure diagram of the pipe bending disk of the pipe bending tool according to the utility model.

Detailed Description

The present invention will be further described with reference to the following detailed description of preferred embodiments thereof, which is to be read in connection with the accompanying drawings.

First, will combine fig. 1~3 to describe the return bend frock according to the utility model discloses an for pressure vessel's coil pipe system shaping, its application scene is very wide.

As shown in fig. 1, the utility model discloses return bend frock has: a three-roller plate bending machine 1 and a pipe bending module.

Specifically, as shown in fig. 1, in this embodiment, the distance between the three rollers of the three-roller plate bending machine 1 is adjustable, the pipe bending module is connected to the three-roller plate bending machine 1 for performing coil pipe rolling molding on the outside, and the distance between the three rollers of the three-roller plate bending machine 1 is adjustable, so that different coil pipe diameters can be bent.

Further, as shown in fig. 1 to 3, in the present embodiment, the bending module includes: three connecting shafts 21, a pair of elbow disks 22, and an elbow groove 23. The three connecting shafts 21 are respectively connected with three rollers of the three-roller plate bending machine 1, the pair of bent pipe trays 22 are respectively connected with the two connecting shafts 21 positioned at the bottom, and the bent pipe grooves 23 are formed in the bent pipe trays 22.

Further, as shown in fig. 1 to 3, in this embodiment, the bending module further includes: a key slot 24 and a connecting key 25. The keyway 24 is seted up in the inboard of bent pipe dish 22, and the connecting key 25 sets up on connecting axle 21, and connecting key 25 and keyway 24 joint for be fixed in the bent pipe dish 22 on the connecting axle 21, thereby make things convenient for the dismantlement installation of bent pipe dish 22, can change different bent pipe dish 22 according to the diameter of different pipes.

Further, as shown in fig. 1, in the present embodiment, the centers of a pair of bending disks 22 are located on the same horizontal line, so as to ensure the accuracy of bending and prevent errors.

Further, in this embodiment, the number of the bending grooves 23 may be several, so that the bending forming in batch can be realized, and the efficiency is improved.

Further, as shown in fig. 1, in the present embodiment, a pair of bending coils 22 are symmetrically disposed on a vertical center line of the connecting shaft 21 at the top, so as to ensure the accuracy of bending, reduce errors, and improve the product quality.

Further, in the present embodiment, the number of the pair of bending coils 22 may be several, so that the bending coils can be formed in batch, thereby improving the productivity.

When the bending machine is used, a pipe to be bent and formed is placed on the bent pipe module, the distance between the three connecting shafts 21 is adjusted by adjusting the distance between the three rollers of the three-roller plate bending machine 1, the diameter of the bent pipe is adjusted, and then the three-roller plate bending machine 1 is started to bend and form the pipe.

Above, having described with reference to fig. 1-3 and according to the utility model discloses return bend frock increases the return bend module on current three-roller plate bending machine 1 to can realize the return bend and handle, and do not influence the board rolling operation of former three-roller plate bending machine 1, increase three-roller plate bending machine 1's versatility, and the interval through the three roller of former three-roller plate bending machine 1 is adjusted, indirectly realizes the interval of return bend module return bend and adjusts, thereby also can realize bending different coil pipe diameters.

It should be noted that, in the present specification, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.

Claims

1. The utility model provides a return bend frock which characterized in that contains:

the three-roller plate bending machine is characterized in that the distance between three rollers of the three-roller plate bending machine is adjustable;

the pipe bending module is connected with the three-roller plate bending machine and is used for performing coil pipe rolling forming on the outside;

the pipe bending module comprises:

the pair of pipe bending disks are respectively connected with the two connecting shafts at the bottom, and the number of the pair of pipe bending disks can be a plurality of pairs;

the pipe bending grooves are formed in the pipe bending disc, and the number of the pipe bending grooves can be a plurality;

the centers of the pair of bent pipe discs are positioned on the same horizontal line;

the pair of pipe bending disks are symmetrically arranged by a vertical center line of the connecting shaft positioned at the top.

2. The tube bending tool according to claim 1, wherein the tube bending module further comprises:

the key groove is formed in the inner side of the bent pipe disc;

the connecting key, the connecting key sets up on the connecting axle, the connecting key with the keyway joint is used for with the return bend dish is fixed in on the connecting axle.