CN221019832U

CN221019832U - Pipe processing clamp

Info

Publication number: CN221019832U
Application number: CN202322540724.2U
Authority: CN
Inventors: 方哲; 章磊
Original assignee: Zhejiang Jiahong Tool Manufacturing Co ltd
Current assignee: Zhejiang Jiahong Tool Manufacturing Co ltd
Priority date: 2023-09-19
Filing date: 2023-09-19
Publication date: 2024-05-28
Anticipated expiration: 2033-09-19

Abstract

The utility model discloses a pipe processing clamp which is low in cost, resource-saving and time-saving in operation, and comprises a mold formed by at least four mold halves, an elastic ring sleeved outside the mold halves and a mold seat; the number of the dies is multiple and the dies are all of different specifications, and the die holder can be adapted to the dies of different specifications; the tail end of the die extends to form a connecting part matched with the machine body; the die holder is of a hollow structure, the front end of the die holder is provided with a shoulder pressing part, the shoulder pressing part of the die holder limits the die between the die holder and the body, and the rear end of the die holder is connected with the body.

Description

Pipe processing clamp

Technical Field

The utility model relates to pipe part machining equipment, in particular to a pipe machining clamp.

Background

Currently, two types of clamps are generally used for machining pipe parts. One is a three-jaw or four-jaw chuck for clamping a tubular workpiece, and the clamp can clamp a large diameter range of the workpiece, but is not suitable for processing the thin-wall tubular workpiece. The other is to push in the conical head to expand the mould with multi-petal shape to support the pipe workpiece, referring to fig. 1, the pipe workpiece comprises a mould 100, a mould base 200 and an elastic ring 300, wherein the mould 100 is formed by combining a plurality of mould petals with the same shape, the tail parts of the mould petals are combined together by the elastic ring 300 to avoid scattering, the tail parts of the mould 100 are clamped in the matched mould base 200 to be combined into a whole, the tail parts of the mould 100 are connected with a pipe processing machine through the tail parts of the mould base 200, when in use, the mould petals gradually expand and tightly support the pipe workpiece to be processed along with the pushing of the conical head 400 on processing equipment, after the processing is completed, the conical head is retracted, and the mould petals are contracted under the action of the elastic ring. The internal support clamp is very suitable for processing and clamping thin-wall pipe workpieces, but on one hand, aiming at pipe fittings with different pipe diameters, dies and die holders with different specifications are required to be replaced, and the clamp cost is very high; on the other hand, the contact surface of the inner wall of the die and the conical head is easy to wear due to frequent pushing of the conical head, a new die and a matched die holder are needed to be replaced in time, but the abrasion of the die holder is not large, so that a great amount of waste of die holder replacement in advance is caused; in addition, if the complete set of the die and the die holder is not well generalized, the dies and the die holders with different specifications are easily mixed up, and the time and the labor are wasted when searching.

Disclosure of Invention

The utility model aims to provide a pipe processing clamp which reduces cost and saves resources.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

A pipe processing clamp comprises a mold composed of at least four mold halves, an elastic ring sleeved outside the mold halves and a mold base; the number of the dies is multiple and the dies are all of different specifications, and the die holder can be adapted to the dies of different specifications; the tail end of the die extends to form a connecting part matched with the machine body; the die holder is of a hollow structure, the front end of the die holder is provided with a shoulder pressing part, the shoulder pressing part of the die holder limits the die between the die holder and the body, and the rear end of the die holder is connected with the body.

Preferably, the connecting part further comprises an elastic piece arranged between the connecting part and the body.

Preferably, the inner wall of the machine body is provided with a groove for placing the elastic piece.

Preferably, a boss is arranged at the lower part of the mold in a radial outward extending way, a circle of arc-shaped grooves are arranged on the outer wall of the boss, and the elastic ring is positioned in the grooves; the boss external diameter is greater than the body internal diameter.

Preferably, the elastic member is wave-shaped.

Preferably, the elastic piece is of an integral annular structure or is formed by uniformly distributing a plurality of arc-shaped elastic pieces.

Compared with the prior art, the utility model has the beneficial effects that: firstly, the connecting part at the tail end of the die is inserted into a machine body, the front end of the die holder is provided with a shoulder pressing part, the rear end of the die holder is connected with the body, the die is limited in the body and the die holder, when the die holder is used, the die is firstly mounted on the body, then the die holder is connected with the body, and the die is quite simple and quick to disassemble and assemble; secondly, a plurality of moulds with different specifications can be matched with one mould base in a shared way, so that the number of mould bases is reduced, the use cost is reduced, a large amount of resources are saved, and meanwhile, the whole tool is reduced in size, lighter in weight and more portable.

Further beneficial effects are that: firstly, an elastic piece is arranged between a body and the tail end of a die, the die is clamped by utilizing elasticity generated by deformation extrusion of the elastic piece, and the die is not easy to fall off after being installed; secondly, the inner wall of the body is provided with a groove for placing the elastic piece, and the elastic piece is limited in the groove, so that the die can be disassembled, assembled and replaced more conveniently and rapidly; secondly, the outer diameter of a boss extending from the lower part of the die is larger than the inner diameter of the body, so that a limiting part is formed during die installation, the die is more convenient to install, a circle of arc-shaped grooves are formed in the outer wall of the boss, the elastic rings are installed in the grooves, the die is not easy to slip in the installation process, and the combined state of the die leaves is kept from being scattered; and the elastic piece is in a wave shape, so that the wave-shaped elastic piece is larger in deformation, the generated elastic force is larger, and the holding effect on the die is stronger.

Drawings

FIG. 1 is a schematic view of a prior art clamp;

FIG. 2 is a schematic view showing a three-dimensional exploded structure of the pipe machining jig of the present utility model;

FIG. 3 is an exploded perspective view of the mold;

FIG. 4 is a schematic cross-sectional view of the pipe machining fixture of the present utility model;

Wherein, 1, the die holder; 2. a mold; 3. an elastic ring; 4. an elastic member; 5. a body; 6. a conical head; 10. pressing a shoulder part; 20. a mould flap; 21. a connection part; 22. a groove; 51. an annular groove.

Description of the embodiments

In order to make the technical scheme of the present utility model clearer, the present utility model will be described in detail with reference to fig. 2 to 4. It should be understood that the detailed description and specific examples, while indicating the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.

A pipe processing clamp comprises a plurality of dies 2, a die holder 1, an elastic ring 3 and an elastic piece 4, and is shown in figures 2, 3 and 4; the mold 2 is composed of at least four mold halves 20, in this embodiment, six mold halves are used as an example, referring to fig. 3, six mold halves 20 are mutually spliced to form the mold 2 with a small upper part and a large lower part, and the lower part is tightly hooped by an elastic ring 3 to avoid scattering; the die holder 1 can be matched with a plurality of dies 2 with different specifications, and the dies 2 with different specifications can be used for adapting to pipe fittings with various inner diameters; a boss is arranged at the lower part of the die 2 in a radial outward extending way, a circle of arc-shaped grooves 22 are arranged on the outer wall of the boss, the elastic ring 3 is clamped in the grooves 22, and the elastic ring 3 can be arranged at other external positions of the die 2; the outer diameter of the boss is larger than the inner diameter of the body 5; the tail end of the die 2, namely, the lower part of the boss is extended with a connecting part 21, specifically, the tail end of each die 20 is extended with a connecting part 21, after the six die 20 are folded to form the die 2, an annular connecting part is formed, the connecting part 21 is inserted into a machine body 5 (the machine body is various machines for processing pipe fittings, a cone head 6 for expanding the die is also positioned in the machine body, and the machine body and the cone head are both in the prior art); the elastic member 4 may be in various shapes, and in this embodiment, the wavy elastic member is taken as an example for illustration, and the elastic member 4 may be in an integral annular structure or may be uniformly distributed by a plurality of segments of arc-shaped elastic members; an annular groove 51 for placing the elastic element 4 is formed in the inner wall of the machine body 5, and the elastic element 4 is arranged between the connecting part 21 and the body 5; the connecting part 21 of the die 2 is inserted into the body 5 until the boss abuts against the side surface of the body, the connecting part 21 and the body 5 are pressed together, the elastic force generated by deformation of the elastic piece 4 keeps the connecting part on the body 5, the connecting mode of the connecting part 21 and the body 5 is not limited to the plug-in type structure in the embodiment, and the cone head 6 is positioned in the middle of the die 2, namely, the die 2, the cone head 6 and the body 5 are coaxially arranged; the die holder 1 is of a hollow structure, the front end of the die holder 1 is provided with a shoulder 10, namely an annular block extending radially inwards at the front end of the die holder, the rear end of the die holder 1 is in threaded connection with the outer wall of the body 5, the shoulder 10 of the die holder 1 limits the die 2 between the die holder 1 and the body 5, the rear end of the die holder 1 is screwed on the body 5, and the die holder 1 and the body 5 can be connected through threads or other connecting structures such as buckle connection.

When in use, the die 2 is inserted into the body 5, the elastic piece 4 on the body 5 is used for clamping the die 2, and then the die holder 1 is screwed on the body 5; the die bases 1 are matched with a plurality of dies 2 with different specifications, so that the number of the die bases is reduced, the use cost is reduced, the whole tool is reduced in size, lighter in weight and more portable, the service life of the die bases is prolonged, and the energy-saving and environment-friendly effects are achieved.

In the description of the present technical solution, it should be noted that the terms such as "upper", "inner", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, and are merely for convenience of describing the present technical solution and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present technical solution.

Meanwhile, in the description of the present technical solution, it should be noted that, unless explicitly specified and limited otherwise, the terms "fixed", "fitting", and "fitting" should be construed broadly, and may be, for example, a fixed connection, a removable connection, or an integral connection; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present technical solution can be understood by those skilled in the art according to specific circumstances.

Although embodiments of the present technology have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the technology, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A pipe processing clamp is characterized in that: comprises a mould (2) composed of at least four mould petals (20), an elastic ring (3) sleeved outside the mould petals (20) and a mould base (1); the number of the dies (2) is multiple and the dies are all of different specifications, and the die holder (1) can be adapted to the dies (2) of the multiple different specifications; the tail end of the die (2) is extended with a connecting part (21) matched with the machine body (5); the die holder (1) is of a hollow structure, the front end of the die holder (1) is provided with a pressing shoulder part (10), the pressing shoulder part (10) of the die holder (1) limits the die (2) between the die holder (1) and the body (5), and the rear end of the die holder (1) is connected with the body (5).

2. The pipe machining fixture of claim 1, wherein: the device also comprises an elastic piece (4) arranged between the connecting part (21) and the body (5).

3. A pipe machining fixture as claimed in claim 2, wherein: an annular groove (51) for placing the elastic piece (4) is formed in the inner wall of the machine body (5).

4. A pipe machining fixture as claimed in claim 2, wherein: a boss is arranged at the lower part of the die (2) in a radial outward extending way, a circle of arc-shaped grooves (22) are arranged on the outer wall of the boss, and the elastic ring (3) is positioned in the grooves (22); the boss external diameter is greater than the body internal diameter.

5. A pipe machining fixture as claimed in claim 2, wherein: the elastic piece (4) is wave-shaped.

6. A pipe machining fixture as claimed in claim 2, wherein: the elastic piece (4) is of an integral annular structure or is formed by uniformly distributing a plurality of arc-shaped elastic pieces (4).