CN216407351U

CN216407351U - Front chuck cylinder of pipe cutting machine

Info

Publication number: CN216407351U
Application number: CN202123037196.6U
Authority: CN
Inventors: 王永虎; 石书军; 王克月
Original assignee: Jinan Zhuoyang Mechanical Equipment Co ltd
Current assignee: Jinan Zhuoyang Mechanical Equipment Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-04-29
Anticipated expiration: 2031-12-06

Abstract

The utility model discloses a front chuck cylinder of a pipe cutting machine, which comprises: the cylinder body, the quick connector, the cylinder connecting pipe, the air storage chamber and the air storage chamber connecting pipe are arranged on the cylinder body; wherein: the rodless cavity part of the cylinder body is connected with the quick-connection plug through a cylinder connecting pipe; the air storage chamber is communicated with the air cylinder connecting pipe through the air storage chamber connecting pipe. The air storage chamber communicated with the air cylinder rodless cavity is additionally arranged, so that the volume of the air cylinder rodless cavity is increased, even if the roller of the front chuck of the pipe cutting machine is completely opened, the air cylinder rodless cavity is equivalent to store partial air, and therefore when a large-size section is clamped, even if the volume of the air cylinder rodless cavity is increased slightly, the air cylinder is not easy to release pressure because the air in the air storage chamber supplies air to the air cylinder rodless cavity, and the purpose of stable clamping is achieved.

Description

Front chuck cylinder of pipe cutting machine

Technical Field

The utility model relates to the field of pipe cutter chucks, in particular to a front chuck cylinder of a pipe cutter.

Background

The information disclosed in this background of the utility model is only for enhancement of understanding of the general background of the utility model and is not necessarily to be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

At present, the front chuck of the pipe cutting machine mostly has a problem that: when a large-size section bar is clamped, for example, the opening distance of the roller is 250mm, when the section bar with the size of 240mm is clamped, pistons in two cylinders for driving two groups of clamping jaws of the front chuck respectively move by only 5mm, so that the gas volume in a rodless cavity of the cylinder is insufficient, and gas leakage exists due to the fact that no matter how powerful a sealing measure is between the pistons and the cylinders, the gas pressure in the rodless cavity of the cylinder is easy to rapidly reduce due to the gas leakage under the condition, so when the clamping size is close to the large-size section bar with the opening distance of the roller, the cylinder is easy to release pressure, and the roller is loosened to cause the section bar to fall. Because the smaller the gas volume, the less readily the pressure can be maintained, according to physics-related theorems.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems, the utility model provides a front chuck cylinder of a pipe cutting machine, wherein an air storage chamber communicated with a rodless cavity of the cylinder is additionally arranged on the basis of the conventional front chuck cylinder, so that the volume of the rodless cavity of the cylinder is increased in a phase-changing manner, and the cylinder is not easy to release pressure. In order to achieve the above object, the technical solution of the present invention is as follows.

A pipe cutter front chuck cylinder comprising: the cylinder body, quick connector, cylinder connecting pipe, gas receiver connecting pipe. Wherein: the rodless cavity part of the cylinder body is connected with the quick-connection connector through a cylinder connecting pipe. The air storage chamber is communicated with the air cylinder connecting pipe through the air storage chamber connecting pipe.

Further, the air storage chamber is arranged in a shell, and the shell is fixedly connected to the cylinder shell.

Furthermore, the air storage chamber is of a barrel structure, and the opening end of the air storage chamber is hermetically fixed on the wall surface of the inner cavity of the shell.

Furthermore, a sealing ring is arranged in front of the opening end of the air storage chamber and the wall surface of the inner cavity of the shell, so that the sealing performance of the air storage chamber is improved, and air leakage is prevented.

Furthermore, two groups of cylinder bodies in the front chuck cylinder are respectively connected with a group of gas supply devices consisting of the quick connector, the cylinder connecting pipe, the gas storage chamber and the gas storage chamber connecting pipe.

Compared with the prior art, the utility model has the following beneficial effects: the air storage chamber communicated with the air cylinder rodless cavity is additionally arranged, so that the volume of the air cylinder rodless cavity is increased, even if the roller of the front chuck of the pipe cutting machine is completely opened, the air cylinder rodless cavity is equivalent to store partial air, and therefore when a large-size section is clamped, even if the volume of the air cylinder rodless cavity is increased slightly, the air cylinder is not easy to release pressure because the air in the air storage chamber supplies air to the air cylinder rodless cavity, and the purpose of stable clamping is achieved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model.

FIG. 1 is a schematic diagram of the internal structure of a front chuck cylinder of the pipe cutting machine in the embodiment.

Fig. 2 is a schematic view of the internal structure of the cylinder block in the embodiment.

The scores in the figure represent: 1-cylinder body, 1.1-rodless cavity, 1.2-rod cavity, 1.3-piston, 1.4-piston rod, 1.5-cylinder rear cover, 2-quick connector, 3-cylinder connecting pipe, 4-gas storage chamber, 5-gas storage chamber connecting pipe, 6-shell and 7-sealing ring.

Detailed Description

It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the utility model as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

For convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate that the directions of movement are consistent with those of the drawings, and do not limit the structure, but merely facilitate the description of the utility model and simplify the description, rather than indicate or imply that the referenced device or element needs to have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.

Term interpretation section: the terms "mounted," "connected," "fixed," and the like in the present invention are to be understood in a broad sense, and for example, the terms "mounted," "connected," and "fixed" may be fixed, detachable, or integrated; the connecting lines may be mechanical, direct or indirect through an intermediate, and those skilled in the art will understand the specific meaning of the above terms in the present invention according to specific situations. The present invention will now be further described with reference to the drawings and specific embodiments of the specification.

Referring to fig. 1 and 2, there is illustrated a pipe cutter front chuck cylinder comprising: cylinder body 1, quick connector 2, cylinder connecting pipe 3, reservoir 4, reservoir connecting pipe 5, wherein: the inner cavity of the cylinder body 1 is a rodless cavity 1.1 and a rod cavity 1.2, the rodless cavity 1.1 is a space between a cylinder rear cover 1.5 and a piston 1.3, the inner cavity of the cylinder body is not provided with a piston rod 1.4, so the cylinder body is called a rodless cavity, and correspondingly, the inner cavity of the cylinder body in which the piston rod 1.4 is positioned is called a rod cavity 1.2. In the existing front chuck cylinder of the pipe cutting machine, when a profile needs to be clamped, compressed air enters the rodless cavity 1.1 and further pushes the piston 1.3 to move outwards, but when the profile is clamped to a large size close to the opening limit of the chuck jaws, the compressed air entering the rodless cavity 1.1 is small in volume due to the fact that the distance of the jaws moving towards the profile is small, and due to the fact that air leakage always exists between the piston 1.3 and the cylinder, even if the jaws clamp the profile, the profile can be released quickly due to pressure relief of the cylinder, and the profile falls off.

For this reason, the embodiment is provided with an additional air storage chamber communicated with the rodless cavity of the cylinder. Specifically, the rodless cavity 1.1 of the cylinder body 1 is connected with the quick connector 2 through a cylinder connecting pipe 3. The air storage chamber 4 is communicated with the cylinder connecting pipe 3 through the air storage chamber connecting pipe 5. The air reservoir 4 is arranged in a housing 6, and the housing 6 is fixedly connected to the cylinder casing. The air storage chamber 4 is of a barrel structure, and a sealing ring 7 is arranged in front of the opening end of the air storage chamber 4 and the wall surface of the inner cavity of the shell 6 so as to increase the sealing performance of the air storage chamber 4 and prevent air leakage. Two groups of cylinder bodies 1 in the front chuck cylinder are respectively connected with a group of gas supply devices consisting of the quick connector 2, a cylinder connecting pipe 3, a gas storage chamber 4 and a gas storage chamber connecting pipe 5. The quick connector 2 is used for being connected with an air compression device, compressed air enters the rodless cavity 1.1 of the cylinder body 1 and the air storage chamber 4 simultaneously after entering the cylinder connecting pipe 3 through the quick connector 2, and the air storage chamber 4 and the rodless cavity 1.1 are communicated all the time and are in the same pressure state. When in use, the outer wall of the shell 6 is fixed on the rotary disk surface of the front chuck.

Because the air storage chamber 4 can be inflated by each inflation, the air storage chamber equivalently increases the volume of the rodless cavity of the air cylinder, and even if the roller of the front chuck of the pipe cutting machine is completely opened, the rodless cavity of the air cylinder equivalently stores partial air, so that when a large-size section bar is clamped, even if the volume of the rodless cavity of the air cylinder is increased slightly, the air in the air storage chamber supplies air for the rodless cavity of the air cylinder, the air cylinder is not easy to release pressure, and the purpose of stable clamping is realized. Without the air reservoir 4, the profile would soon be released by the air cylinder venting, even if it were possible to clamp the profile at that time. In addition, according to the law of physics, under the same conditions (temperature, pressure), if the volume is larger, the pressure drop of the gas per unit time is smaller. The air storage chamber 4 is additionally arranged, so that the cylinder is not pressurized, and the purpose of stable clamping is realized.

Finally, it should be understood that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.

Claims

1. The utility model provides a chuck cylinder before pipe cutting machine which characterized in that includes: the cylinder body, the quick connector, the cylinder connecting pipe, the air storage chamber and the air storage chamber connecting pipe are arranged on the cylinder body; wherein: the rodless cavity part of the cylinder body is connected with the quick-connection plug through a cylinder connecting pipe; the air storage chamber is communicated with the air cylinder connecting pipe through the air storage chamber connecting pipe.

2. The pipe cutter front chuck cylinder of claim 1, wherein the air reservoir is disposed in a housing that is fixedly attached to a cylinder housing.

3. The pipe cutter front chuck cylinder as claimed in claim 2, wherein the air reservoir is of a barrel structure, and an open end of the air reservoir is hermetically fixed on the inner cavity wall surface of the housing.

4. The pipe cutter front chuck cylinder according to claim 3, wherein a seal ring is provided between the open end of the air reservoir and the inner cavity wall of the housing.

5. The pipe cutting machine front chuck cylinder according to any one of claims 1 to 4, characterized in that two sets of cylinders in the front chuck cylinder are respectively connected with a set of air supply device consisting of the quick connector, a cylinder connecting pipe, an air storage chamber and an air storage chamber connecting pipe.