CN211012773U

CN211012773U - Piston cylinder inside and outside diameter clearance measuring apparatu

Info

Publication number: CN211012773U
Application number: CN201922480770.1U
Authority: CN
Inventors: 周磊
Original assignee: Zhengzhou Haozheng Electromechanical Equipment Co ltd
Current assignee: Zhengzhou Haozheng Electromechanical Equipment Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-07-14
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a piston cylinder inside and outside diameter clearance measuring instrument, which comprises an instrument shell, wherein the instrument shell is provided with at least two rows of gas circuit assemblies which are arranged up and down, and each gas circuit assembly comprises a gas inlet component, a pressure stabilizing valve, a gas distribution chamber, a regulating valve and a gas nozzle which are connected in sequence along the gas flow direction; a pressure sensor is arranged outside the gas distribution chamber; and the pressure sensor and the video line interface are electrically connected with the industrial control acquisition card. The utility model provides an inside and outside diameter clearance measuring apparatu of piston cylinder, the mode through gas signal commentaries on classics electric signal is measured and is obtained the inside and outside diameter of piston cylinder, detects fast and the rate of accuracy is high, and area is little moreover.

Description

Piston cylinder inside and outside diameter clearance measuring apparatu

Technical Field

The utility model relates to a piston cylinder internal and external diameter measurement field especially relates to a piston cylinder internal and external diameter clearance measuring apparatu.

Background

In the production process of the piston cylinder, the inner diameter value and the outer diameter value of the piston cylinder need to be measured so as to control the dimensional precision of a product to be kept in a proper range and prevent a defective product from entering the market. In the traditional measuring method, the scale value is mainly manually measured by a measuring tape and is distinguished by naked eyes. However, when the measuring tape is used for manual measurement, because the inner side wall and the outer side wall of the piston cylinder are cylindrical surfaces, the measuring tape is easy to slip when in contact with the cylindrical surfaces, and the manual measurement is slow in operation speed and low in measurement accuracy. Secondly, because the multi-point measurement is needed, the time consumed by manual measurement and calculation reaches 2-3 minutes, the efficiency is extremely low, and the method is not suitable for the one-by-one detection of large-batch piston cylinders.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an inside and outside footpath clearance measuring apparatu of piston cylinder, the mode through gas signal switching signal is measured and is obtained the piston cylinder internal diameter, detects fast and the rate of accuracy is high, and area is little moreover.

In order to achieve the purpose, the utility model provides a clearance measuring instrument for the inner diameter and the outer diameter of a piston cylinder, which comprises an instrument shell, wherein at least two rows of gas circuit assemblies which are arranged up and down are arranged on the instrument shell, and each gas circuit assembly comprises a gas inlet component, a pressure stabilizing valve, a gas distribution chamber, a regulating valve and a gas nozzle which are connected in sequence along the direction of gas flow; a pressure sensor is arranged outside the gas distribution chamber; and the pressure sensor and the video line interface are electrically connected with the industrial control acquisition card.

As a further improvement, the air inlet assembly comprises an outer air inlet joint, a hand slide valve and an air circuit connecting pipe which are connected in sequence, and the air circuit connecting pipe is connected between the hand slide valve and a pressure stabilizing valve.

As a further improvement of the utility model, the back side panel of the instrument shell is spliced and matched with a back transition plate, and the front side panel of the instrument shell is spliced and matched with a front transition plate; the outer air inlet joint and the hand slide valve of each exhaust path assembly are both arranged on the rear transition plate; the gas distribution chamber, the regulating valve and the gas nozzle of each exhaust path assembly are all arranged on the front transition plate.

As a further improvement of the utility model, the side wall of the instrument shell is provided with an opening and a cover plate connected with the opening; the back side panel and the front side panel of the instrument shell are both provided with notches; one end of the notch is positioned in the middle of the panel, and the other end of the notch is positioned at the opening edge of the instrument shell; and the upper edge and the lower edge of the front transition plate and the rear transition plate are respectively provided with a sliding chute matched with the upper edge and the lower edge of the notch.

As a further improvement of the present invention, the video line interface includes a VGA socket and a COM socket.

As a further improvement of the utility model, be equipped with on the instrument shell all with industrial control collection card electric connection's power socket, IO interface, L AN bus interface and switch.

Advantageous effects

Compared with the prior art, the utility model discloses an inside and outside diameter clearance measuring apparatu of piston cylinder's advantage does:

1. when in use, the air tap is externally connected with an inner/outer diameter measurement auxiliary part provided with an air outlet hole. Compressed gas is caused to enter the gas distribution chamber through the gas inlet assembly. The size of the air outlet is adjusted by the adjusting valve, so that the electric signal of the pressure sensor is in a measuring range. And matching the inner/outer diameter measurement auxiliary part with the inner/outer diameter of the piston cylinder, wherein the measurement value of the pressure sensor changes at the moment, and is reflected on a display screen connected with a video line interface after being processed by an industrial control acquisition card, so that the size of the inner/outer diameter of the piston cylinder is obtained. The measuring instrument can quickly and accurately detect the inner/outer diameters of the piston cylinder, has high efficiency and is suitable for one-by-one detection of large-batch workpieces.

2. Because the gas circuit assembly adopts at least two rows and arranges from top to bottom, compared with the structure of arranging into a single row, the occupied area is smaller. And be connected with the display screen through the video line interface, need not to integrate the display screen to the instrument shell, further reduce the volume of this measuring apparatu, conveniently carry.

3. The outer air inlet joint and the hand slide valve of each exhaust path assembly are arranged on the rear transition plate, the gas distribution chamber, the regulating valve and the air nozzle of each exhaust path assembly are arranged on the front transition plate, and when various gas path elements of the gas path assembly need to be overhauled, the gas path assembly, the front transition plate and the rear transition plate can be quickly detached from the instrument shell, screws do not need to be frequently screwed, and the operation is convenient and quick. The gas circuit assembly, the front transition plate and the rear transition plate are disassembled and then inspected, so that the visual field of the maintainer can not be shielded by the instrument shell, and the maintenance operation and the troubleshooting can be carried out more easily.

The invention will become more apparent from the following description when taken in conjunction with the accompanying drawings which illustrate embodiments of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of a piston cylinder inside and outside diameter clearance measuring instrument in embodiment 1;

fig. 2 is a side sectional view of the piston cylinder inside and outside diameter clearance measuring instrument in embodiment 1;

fig. 3 is a rear view of the piston cylinder inner and outer diameter clearance measuring instrument in embodiment 1;

fig. 4 is a front view of a piston cylinder inside and outside diameter clearance measuring instrument in embodiment 2;

FIG. 5 is a disassembled view of the front transition plate and the instrument housing in example 2;

fig. 6 is a rear view of the piston cylinder inside and outside diameter clearance measuring instrument in embodiment 2;

fig. 7 is a cross-sectional view of the front transition plate.

Detailed Description

Embodiments of the present invention will now be described with reference to the accompanying drawings.

Example 1

The utility model discloses a specific embodiment is as shown in fig. 1 to fig. 3, an inside and outside diameter clearance measuring apparatu of piston cylinder, including instrument shell 1, be equipped with the gas circuit assembly of arranging about at least two rows on the instrument shell 1, every exhaust passage assembly includes along the subassembly that admits air, surge damping valve 9, gas distribution room 11, governing valve 3 and the air cock 2 that the air current direction connects gradually. A pressure sensor 10 is provided outside the gas distribution chamber 11. The instrument shell 1 is provided with an industrial control acquisition card 13 and a video line interface, and the pressure sensor 10 and the video line interface are electrically connected with the industrial control acquisition card 13. The air inlet assembly comprises an outer air inlet joint 6, a hand slide valve 7 and an air path connecting pipe 8 which are sequentially connected, and the air path connecting pipe 8 is connected between the hand slide valve 7 and a pressure stabilizing valve 9. The regulating valve 3 corresponds to the air faucet 2 one by one, and the outer air inlet connector 6 corresponds to the hand slide valve 7 one by one.

In this embodiment, the air path assembly is arranged in two rows, one upper row and one lower row, and each row is provided with one outer air inlet joint 6 and four air nozzles 2. After entering an external air inlet joint 6, the air flow is divided into four paths and flows out of the air faucet 2 after passing through four pressure stabilizing valves 9 and a pressure sensor 10. The instrument shell 1 is of a square structure, the two gas circuit assemblies are located on the same side of the instrument shell 1, and the industrial control acquisition card 13 is located on the other side of the instrument shell 1.

The outer air inlet joint 6 and the hand slide valve 7 of each exhaust path assembly are arranged on the back panel of the instrument shell 1. The gas distribution chamber 11, the regulating valve 3 and the gas nozzle 2 of each exhaust passage assembly are all arranged on the front panel of the instrument shell 1. The front panel of the instrument housing 1 is also provided with a handle 12.

The video line interface includes a VGA socket 17 and a COM socket 18. The VGA socket 17 and the COM socket 18 are both arranged on the rear panel of the instrument housing 1.

The instrument shell 1 is provided with a power socket 14, AN I/O interface 15, AN L AN bus interface 19, a power switch 16 and a USB socket 4 which are electrically connected with the industrial control acquisition card 13, wherein the power socket 14, the I/O interface 15, the L AN bus interface 19 and the power switch 16 are all positioned on the back side panel of the instrument shell 1, the number of the USB sockets 4 is four and positioned on the front side panel of the instrument shell 1, the front side panel of the instrument shell 1 is provided with AN alarm 5, and the alarm 5 is electrically connected with the industrial control acquisition card 13.

When in use, the air tap 2 is externally connected with an inner/outer diameter measurement auxiliary part provided with an air outlet hole. Compressed gas is admitted to the gas distribution chamber 11 via the external inlet connection 6. The air outlet size of the air tap 2 is adjusted by the adjusting valve 3, so that the electric signal of the pressure sensor 10 is in the measuring range. The inside/outside diameter measurement auxiliary is fitted to the inside/outside diameter of the piston cylinder. For example, when the inner diameter of the piston cylinder is measured, the inner diameter measurement auxiliary part is a cylinder, the outer side wall of the inner diameter measurement auxiliary part is provided with an air outlet, and the cylinder-shaped inner diameter measurement auxiliary part is inserted into the inner side of the piston cylinder. At this time, the measured value of the pressure sensor 10 changes, and is reflected on a display screen connected with a video line interface after being processed by the industrial control acquisition card 13, so that the size of the inner/outer diameter of the piston cylinder is obtained. Once the inside/outside diameter measurement of the piston cylinder is not within the acceptable range, the alarm 5 issues an alarm, thereby eliminating the defective component.

Example 2

As shown in fig. 4 to 7, the difference from embodiment 1 is that a rear transition plate 24 is fitted to the rear panel of the instrument case 1 by insertion, and a front transition plate 22 is fitted to the front panel of the instrument case 1 by insertion. The outer air inlet joint 6 and the hand slide valve 7 of each exhaust path assembly are arranged on the rear transition plate 24. The gas distribution chamber 11, the regulating valve 3 and the gas nozzle 2 of each exhaust passage assembly are mounted on the front transition plate 22.

The side wall of the instrument housing 1 is provided with an opening and a cover plate 20 connected to the opening. One side of the cover plate 20 is hinged with the opening edge of the instrument housing 1, and the other side is in screw connection or clamping fit with the opening edge of the instrument housing 1. The back panel and the front panel of the instrument shell 1 are both provided with notches 21. The notch 21 extends transversely. One end of the notch 21 is located in the middle of the panel and the other end is located at the opening edge of the instrument housing 1. The upper and lower edges of the front transition plate 22 and the rear transition plate 24 are respectively provided with a sliding groove 23 matched with the upper and lower edges of the gap 21.

The present invention has been described above with reference to the preferred embodiments, but the present invention is not limited to the above-disclosed embodiments, and various modifications, equivalent combinations, which are made according to the essence of the present invention, should be covered.

Claims

1. The measuring instrument for the clearance between the inner diameter and the outer diameter of the piston cylinder comprises an instrument shell (1) and is characterized in that at least two rows of gas path assemblies which are arranged up and down are arranged on the instrument shell (1), and each gas path assembly comprises a gas inlet assembly, a pressure stabilizing valve (9), a gas distribution chamber (11), a regulating valve (3) and a gas nozzle (2) which are sequentially connected along the direction of gas flow; a pressure sensor (10) is arranged on the outer side of the gas distribution chamber (11); an industrial control acquisition card (13) and a video line interface are installed on the instrument shell (1), and the pressure sensor (10) and the video line interface are electrically connected with the industrial control acquisition card (13).

2. The piston cylinder inner and outer diameter clearance measuring instrument as claimed in claim 1, wherein the air inlet assembly comprises an outer air inlet joint (6), a hand slide valve (7) and an air path connecting pipe (8) which are connected in sequence, and the air path connecting pipe (8) is connected between the hand slide valve (7) and a pressure stabilizing valve (9).

3. The piston cylinder inner and outer diameter clearance measuring instrument according to claim 2, characterized in that a rear transition plate (24) is in plug-in fit with a rear side panel of the instrument housing (1), and a front transition plate (22) is in plug-in fit with a front side panel of the instrument housing (1); an outer air inlet joint (6) and a hand slide valve (7) of each exhaust path assembly are both arranged on the rear transition plate (24); the gas distribution chamber (11), the regulating valve (3) and the gas nozzle (2) of each exhaust path assembly are all arranged on the front transition plate (22).

4. A piston cylinder inner and outer diameter clearance measuring instrument according to claim 3, characterized in that the side wall of the instrument housing (1) is provided with an opening and a cover plate (20) connected with the opening; gaps (21) are arranged on the rear side panel and the front side panel of the instrument shell (1); one end of the notch (21) is positioned in the middle of the panel, and the other end of the notch is positioned at the opening edge of the instrument shell (1); the upper edge and the lower edge of the front transition plate (22) and the rear transition plate (24) are respectively provided with a sliding chute (23) matched with the upper edge and the lower edge of the notch (21).

5. The piston cylinder inside and outside diameter clearance measuring instrument according to claim 1, wherein the video line interface comprises a VGA socket (17) and a COM socket (18).

6. The piston cylinder inner and outer diameter clearance measuring instrument according to claim 1, wherein a power socket (14), AN I/O interface (15), AN L AN bus interface (19) and a power switch (16) which are electrically connected with AN industrial control acquisition card (13) are arranged on the instrument housing (1).