CN211465668U

CN211465668U - Airtightness detection device

Info

Publication number: CN211465668U
Application number: CN202020016275.5U
Authority: CN
Inventors: 樊蕾; 李云龙; 李纪耀; 刘朗; 姜泰; 刘经越; 张志刚; 刘培; 孙立
Original assignee: China Nuclear Tianjin Machinery Co ltd
Current assignee: China Nuclear Tianjin Machinery Co ltd
Priority date: 2020-01-06
Filing date: 2020-01-06
Publication date: 2020-09-11
Anticipated expiration: 2030-01-06

Abstract

The utility model belongs to the technical field of machining, a airtight detection device is disclosed, include: the machine tool pull rod is internally provided with a vent pipe and a liquid through pipe, the liquid through pipe is sleeved outside the vent pipe at intervals, the vent pipe is used for introducing high-pressure gas, and the liquid through pipe is used for introducing high-pressure cutting liquid; the airtight positioning block can be arranged in the chuck, an airtight hole and a liquid spraying hole are formed in the airtight positioning block, the airtight hole is communicated with the vent pipe, and when a workpiece is clamped on the chuck, the workpiece can abut against an outlet of the airtight hole; the liquid spraying hole is communicated with the liquid through pipe and is used for spraying cutting liquid to the workpiece; the air pressure detection device is communicated with the vent pipe and used for detecting the air pressure in the vent pipe. Through the structure, the air tightness detection device can be used for washing material scraps on the chuck and the workpiece when detecting whether the workpiece is clamped in place, so that the cleanness of the workpiece is kept, and the production cost is reduced.

Description

Airtightness detection device

Technical Field

The utility model relates to the technical field of machining, especially, relate to an airtight detection device.

Background

In the present work piece processing field, along with the continuous popularization of automation technology, more and more production lines adopt the manipulator to replace the manpower to carry out the unloading of work piece. In machine tool machining, a fan-shaped chuck is generally used for clamping a workpiece in rough machining, and purging and cleaning of the fan-shaped chuck after the workpiece is loaded and unloaded are also generally performed by a manipulator.

Because the material scraps generated during the processing of the workpiece are irregularly distributed and have strong adhesion, the mechanical arm is easy to clean when cleaning the material scraps remained on the fan-shaped chuck. Once the material scraps on the fan-shaped chuck are not completely cleaned, the material scraps can easily influence the clamping of the fan-shaped chuck on the workpiece, so that the clamping of the machined workpiece is not in place, and the machined workpiece is unqualified. In addition, in the actual machining process, part of scraps cut off from the workpiece can be adhered to the workpiece, so that the subsequent machining of the workpiece can be influenced, the service life of a cutter can be influenced, the subsequent cleaning work of the workpiece is increased, and the production cost of the workpiece is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an airtight detection device, this airtight detection device can be when detecting whether the work piece dress card targets in place, washes the material bits on chuck and the work piece, is favorable to keeping the cleanness of work piece, reduction in production cost.

To achieve the purpose, the utility model adopts the following technical proposal:

an air-tightness detecting device comprising:

the machine tool pull rod is internally provided with a vent pipe and a liquid through pipe, the liquid through pipe is sleeved outside the vent pipe at intervals, the vent pipe is used for introducing high-pressure gas, and the liquid through pipe is used for introducing high-pressure cutting liquid;

the airtight positioning block can be arranged in the chuck, an airtight hole and a liquid spraying hole are formed in the airtight positioning block, the airtight hole is communicated with the vent pipe, and when a workpiece is clamped in the chuck, the workpiece can abut against an outlet of the airtight hole; the liquid spraying hole is communicated with the liquid through pipe and is used for spraying cutting liquid to the workpiece;

the air pressure detection device is communicated with the vent pipe and is used for detecting the air pressure in the vent pipe.

Preferably, the airtight locating piece includes airtight post and connecting block, the one end of airtight post connect in on the connecting block, be equipped with the connecting hole on the connecting block, the import in airtight hole communicate in the connecting hole, the export in airtight hole set up in the airtight post is kept away from the one end of connecting block, just the airtight post is kept away from the one end of connecting block is configured to can the butt in the work piece.

Preferably, the airtight columns are provided in plurality, and the airtight columns are uniformly arranged along the circumferential direction of the center line of the connecting block.

Preferably, the plurality of liquid spraying holes are uniformly arranged along the circumferential direction of the central line of the connecting block, and the outlet directions of the plurality of liquid spraying holes are all arranged towards the workpiece.

Preferably, the chuck device further comprises a chuck connecting block which is connected between the chuck and the power chuck.

Preferably, the chuck connecting block is provided with a high-pressure air hole, one end of the high-pressure air hole is communicated with the air-tight hole, and the other end of the high-pressure air hole is communicated with the vent pipe.

Preferably, a sealing ring is arranged at the joint of the vent pipe and the high-pressure air hole and used for preventing air leakage.

Preferably, the chuck connecting block is further provided with a high-pressure liquid hole, one end of the high-pressure liquid hole is communicated with the liquid through pipe, and the other end of the high-pressure liquid hole is communicated with the liquid spraying hole.

Preferably, the number of the high-pressure liquid holes is equal to the number of the liquid ejecting holes.

Preferably, the central lines of the liquid through pipe and the air through pipe are coincident with the central line of the machine tool pull rod.

The utility model has the advantages that:

the utility model provides an airtight detection device, whether the connection that is used for the lathe to detect work piece and chuck when adding man-hour is installed the card and is put in place, this airtight detection device's airtight locating piece can be arranged in the chuck, be provided with the airtight hole on the airtight locating piece, the airtight hole communicates with the breather pipe in the lathe pull rod, it has high-pressure gas to lead to in the breather pipe, when the work piece joint is on the chuck, the work piece can butt in the export of airtight hole, the atmospheric pressure detection device communicates in the breather pipe, detect the atmospheric pressure in the breather pipe, if the atmospheric pressure detection device detects that the atmospheric pressure in the breather pipe is less than the default, then have the clearance between the export of work piece and airtight hole, and then explain that the work piece joint is not in place on; if the air pressure in the air pipe is detected to be higher than or equal to the preset value by the air pressure detection device, no gap exists between the workpiece and the outlet of the air-tight hole, and the workpiece is clamped in place on the chuck. In addition, still be provided with the hydrojet hole on the airtight locating piece, hydrojet hole and the liquid pipe intercommunication that leads to in the lathe pull rod lead to in the liquid pipe, lead to there being high-pressure cutting fluid, the hydrojet hole can be to the work piece injection cutting fluid of joint on the chuck, cutting fluid can sputter on the chuck, wash the material bits on chuck and the work piece, not only can avoid the material bits on the chuck to make the dress card of work piece not in place, still be favorable to keeping the cleanness of work piece surface, avoid follow-up washing to the work piece, reduction in production cost.

Drawings

FIG. 1 is a cross-sectional view of a power chuck and a chuck connecting block according to an embodiment of the present invention after connection;

FIG. 2 is a front view of the gas-tight locating block of the present invention disposed in a chuck;

FIG. 3 is a top view of a gas-tight locating block disposed in a chuck, in accordance with an embodiment of the present invention;

FIG. 4 is a cross-sectional view of a gas-tight locating block disposed in a chuck, in accordance with an embodiment of the present invention;

FIG. 5 is a front view of an airtight alignment block provided in an embodiment of the present invention;

FIG. 6 is a top view of an airtight alignment block provided in an embodiment of the present invention;

fig. 7 is a top view of a chuck connecting block according to an embodiment of the present invention.

In the figure:

1. a machine tool pull rod; 11. a breather pipe; 12. a liquid pipe is communicated; 2. an airtight positioning block; 21. a gas-tight hole; 22. a liquid ejection hole; 23. a gas-tight column; 24. connecting blocks; 25. connecting holes; 3. a chuck connecting block; 31. high-pressure air holes; 311. a seal ring; 32. a high pressure liquid port; 100. a chuck; 101. a power chuck.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention and the technical effects achieved by the present invention clearer, the following will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The utility model provides an airtight detection device for whether the lathe adds the work piece and add the connection dress card that detects work piece and chuck 100 and targets in place, this airtight detection device includes lathe pull rod 1, airtight locating piece 2 and atmospheric pressure detection device. As shown in fig. 1, specifically, a vent pipe 11 and a liquid through pipe 12 are arranged in a machine tool pull rod 1, high-pressure gas is introduced into the vent pipe 11, and high-pressure cutting liquid is introduced into the liquid through pipe 12; as shown in fig. 2 and 3, the airtight positioning block 2 can be placed in the chuck 100, an airtight hole 21 is formed in the airtight positioning block 2, the airtight hole 21 is communicated with the vent pipe 11, when a workpiece is clamped on the chuck 100, the workpiece can abut against an outlet of the airtight hole 21, the air pressure detection device is communicated with the vent pipe 11 and can detect the air pressure in the vent pipe 11, if the air pressure detection device detects that the air pressure in the vent pipe 11 is lower than a preset value, a gap is formed between the workpiece and the outlet of the airtight hole 21, and therefore clamping of the workpiece on the chuck 100 is not in place; if the air pressure detecting device detects that the air pressure in the vent pipe 11 is higher than or equal to the preset value, there is no gap between the workpiece and the outlet of the airtight hole 21, thereby indicating that the workpiece is clamped in place on the chuck 100.

As shown in fig. 4, preferably, the airtight positioning block 2 is further provided with a liquid spraying hole 22, the liquid spraying hole 22 is communicated with the liquid through pipe 12, the liquid spraying hole 22 can spray cutting liquid to the workpiece clamped on the chuck 100, the cutting liquid can be splashed onto the chuck 100, and the material scraps on the chuck 100 and the workpiece are washed, so that the situation that the workpiece is not clamped in place due to the material scraps remained on the chuck 100 can be avoided, the surface of the workpiece is kept clean, the subsequent cleaning of the workpiece is avoided, and the production cost is reduced.

In this embodiment, lead to liquid pipe 12 interval cover and locate the breather pipe 11 outside, not only be favorable to reducing the space that leads to liquid pipe 12 and breather pipe 11 occupy, still make lathe pull rod 1 only need process one and wear to establish the hole and can install two pipelines for lathe pull rod 1 processing is convenient, and the processing cost is low.

As shown in fig. 5 and 6, preferably, the airtight positioning block 2 includes an airtight column 23 and a connection block 24, the connection block 24 includes a first side and a second side which are oppositely disposed, one end of the airtight column 23 is connected to the first side, the connection block 24 is provided with a connection hole 25, an inlet of the airtight hole 21 is communicated with the connection hole 25, an outlet of the airtight hole 21 is disposed at one end of the airtight column 23 far from the connection block 24, and one end of the airtight column 23 far from the connection block 24 is configured to be capable of abutting against a surface of a workpiece, so that the abutting of the airtight positioning block 2 against the workpiece is facilitated. Specifically, the connecting block 24 is connected to a main shaft of the machine tool through a bolt, so that the airtight positioning block 2 is connected with the main shaft of the machine tool; meanwhile, the chuck 100 is provided with a notch for accommodating the airtight column 23, so that the airtight positioning block 2 can be conveniently placed in the chuck 100. Preferably, the number of the airtight columns 23 and the airtight holes 21 is set to be the same, and each is set to be plural, so that one airtight hole 21 is provided on one airtight column 23, facilitating the arrangement of the airtight columns 23 and the airtight holes 21. More preferably, the plurality of airtight columns 23 are uniformly arranged along the circumferential direction of the center line of the connecting block 24, so that the airtight columns 23 can be uniformly abutted against the workpiece, preventing the workpiece from being deflected due to the uneven abutment force. Specifically, the number of the airtight columns 23 is three, and one ends of the three airtight columns 23 far away from the connecting block 24 are convenient for forming a plane to abut against the surface of the workpiece.

In the present embodiment, the plurality of liquid ejecting holes 22 are provided, and the outlet directions of the plurality of liquid ejecting holes 22 are all set to be arranged toward the workpiece, so that the liquid ejecting holes 22 can eject sufficient cutting liquid to the workpiece, and clean the workpiece and the swarf on the chuck 100. Preferably, the plurality of liquid ejection holes 22 are uniformly arranged in the circumferential direction of the center line of the joint block 24 so that the cutting liquid can uniformly clean the workpiece.

As shown in fig. 1 and 7, the airtightness detecting apparatus preferably further comprises a chuck connection block 3, and the chuck connection block 3 is connected between the chuck 100 and the power chuck 101. Specifically, be equipped with the bolt hole on the chuck connecting block 3, chuck connecting block 3 passes through bolted connection on power chuck 101 for the dismouting of being convenient for of being connected of chuck connecting block 3 and power chuck 101. Preferably, the chuck 100 is also provided with bolt holes, and the bolt holes are connected to the chuck connecting block 3 through bolts, so that the chuck 100 can be conveniently disassembled and assembled.

In this embodiment, the chuck connecting block 3 is provided with a high pressure gas hole 31, one end of the high pressure gas hole 31 is communicated with the airtight hole 21, and the other end is communicated with the vent pipe 11, so that the high pressure gas in the vent pipe 11 can pass through the airtight hole 21. Preferably, a sealing ring 311 is disposed at a joint of the vent pipe 11 and the high pressure vent hole 31, so that the sealing property at the joint of the vent pipe 11 and the high pressure vent hole 31 can be improved to prevent air leakage. In this embodiment, the chuck connecting block 3 is further provided with a high-pressure liquid hole 32, one end of the high-pressure liquid hole 32 is communicated with the liquid passing tube 12, and the other end of the high-pressure liquid hole 32 is communicated with the liquid spraying hole 22, so that the high-pressure cutting liquid in the liquid passing tube 12 can be introduced into the liquid spraying hole 22. Preferably, the number of the high-pressure liquid holes 32 is equal to the number of the liquid ejecting holes 22, so that each liquid ejecting hole 22 can be communicated with one high-pressure liquid hole 32, and the cutting liquid amount ejected from the liquid ejecting holes 22 is sufficient. Specifically, the number of the high-pressure liquid holes 32 and the number of the liquid spraying holes 22 are three, so that the cleaning of the cutting liquid on the workpiece can be guaranteed, the machining of the chuck connecting block 3 and the air-tight positioning block 2 can be reduced, and the machining cost is reduced.

Preferably, the machine tool pull rod 1, the power chuck 101, the chuck connecting block 3, the airtight positioning block 2 and the chuck 100 are all arranged in a superposed manner, so that not only are the arrangement of the components facilitated, but also the rotation of the components relative to the same axis can be ensured.

In this embodiment, the air pressure detecting device includes an air pressure sensor, a controller and a display, the controller is electrically connected to the air pressure sensor and the display, the air pressure sensor is used for detecting the air pressure in the air pipe 11, and feeding back the air pressure value to the controller, the controller compares the measured air pressure value with a preset value, if the air pressure value is lower than the preset value, the controller enables the display to display a signal that the workpiece is not clamped in place, and if the air pressure value is higher than or equal to the preset value, the controller enables the display to display a signal that the workpiece is clamped in place. It is understood that the preset value in the controller can be adjusted by those skilled in the art according to actual conditions, so as to adjust the sensitivity of the air tightness detecting device.

In this embodiment, the controller may be a centralized or distributed controller, for example, the controller may be a single-chip microcomputer or may be formed by a plurality of distributed single-chip microcomputers, and a control program may be run in the single-chip microcomputers to control the air pressure sensor and the display to implement the functions thereof.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An air-tightness detecting device, comprising:

the machine tool pull rod (1) is provided with an air pipe (11) and a liquid pipe (12) in the machine tool pull rod (1), the liquid pipe (12) is sleeved outside the air pipe (11) at intervals, the air pipe (11) is used for introducing high-pressure gas, and the liquid pipe (12) is used for introducing high-pressure cutting liquid;

the airtight positioning block (2) can be arranged in the chuck (100), an airtight hole (21) and a liquid spraying hole (22) are formed in the airtight positioning block (2), the airtight hole (21) is communicated with the vent pipe (11), and when a workpiece is clamped in the chuck (100), the workpiece can abut against an outlet of the airtight hole (21); the liquid spraying hole (22) is communicated with the liquid through pipe (12) and is used for spraying cutting liquid to the workpiece;

the air pressure detection device is communicated with the air pipe (11) and is used for detecting the air pressure in the air pipe (11).

2. The airtightness detection apparatus according to claim 1, wherein the airtight positioning block (2) includes an airtight column (23) and a connection block (24), one end of the airtight column (23) is connected to the connection block (24), a connection hole (25) is provided on the connection block (24), an inlet of the airtight hole (21) is communicated with the connection hole (25), an outlet of the airtight hole (21) is provided at one end of the airtight column (23) away from the connection block (24), and one end of the airtight column (23) away from the connection block (24) is configured to be capable of abutting against the workpiece.

3. The airtightness detection apparatus according to claim 2, wherein the airtight columns (23) are provided in plural numbers, and the plural numbers of airtight columns (23) are uniformly arranged in a circumferential direction along a center line of the connection block (24).

4. The airtightness detection apparatus according to claim 2, wherein the plurality of liquid ejection holes (22) are provided, the plurality of liquid ejection holes (22) are uniformly arranged in a circumferential direction of a center line of the connection block (24), and outlet directions of the plurality of liquid ejection holes (22) are all arranged toward the workpiece.

5. The airtightness detection apparatus according to claim 1, further comprising a chuck connection block (3), wherein the chuck connection block (3) is connected between the chuck (100) and the power chuck (101).

6. The airtightness detection apparatus according to claim 5, wherein a high-pressure air hole (31) is provided in the chuck connection block (3), one end of the high-pressure air hole (31) is communicated with the airtight hole (21), and the other end of the high-pressure air hole (31) is communicated with the vent pipe (11).

7. The airtightness detection apparatus according to claim 6, wherein a sealing ring (311) is provided at a connection between the ventilation pipe (11) and the high-pressure vent (31) to prevent air leakage.

8. The airtightness detection apparatus according to claim 5, wherein the chuck connection block (3) is further provided with a high-pressure liquid hole (32), and one end of the high-pressure liquid hole (32) is communicated with the liquid through pipe (12) and the other end thereof is communicated with the liquid spraying hole (22).

9. The airtightness detection apparatus according to claim 8, wherein the number of the high-pressure liquid holes (32) is equal to the number of the liquid ejection holes (22).

10. The airtightness detection apparatus according to claim 1, wherein the center lines of the liquid flow pipe (12) and the air flow pipe (11) are coincident with the center line of the machine tool tie rod (1).