CN215262285U

CN215262285U - Multi-module parallel connection simultaneous air tightness detection device

Info

Publication number: CN215262285U
Application number: CN202120878959.0U
Authority: CN
Inventors: 黄军垒; 乔兆永; 杨鹏辉; 张振欣; 赵征
Original assignee: Zhengzhou Spaceme Co ltd
Current assignee: Zhengzhou Spaceme Co ltd
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2021-12-21
Anticipated expiration: 2031-04-27

Abstract

The utility model discloses a multi-module parallel connection simultaneous air tightness detection device, wherein an upper compression plugging structure comprises a driving device, a lifting seat, a plugging head and a pressing head; the pressing head comprises a base, a central rod, a central sleeve, a positioning rod, a positioning sleeve, a spring and a pressing seat; the base is fixedly arranged at the bottom of the base, a center sleeve sleeved with the center rod correspondingly is arranged in the center of the pressing seat, the positioning sleeve is sleeved on the positioning rod, and the spring is sleeved on the positioning rod; the inflation detection mechanism comprises an air source, a main pipe, branch pipes and an inflation head, wherein the air source is communicated with the branch pipes through the main pipe to form a multi-path air source, and the main pipe and the branch pipes are both provided with pressure sensors and control valves; the utility model discloses a parallelly connected gas filled structure of multichannel can carry out the while to the multichannel work piece and examine altogether fast, sets up the structure of collet into but buffer structure, has not only ensured compressing tightly the effect of work piece, can ensure simultaneously that the shutoff head is sealed completely with the passageway.

Description

Multi-module parallel connection simultaneous air tightness detection device

Technical Field

The utility model belongs to the technical field of the gas tightness detects, concretely relates to parallelly connected gas tightness detection device altogether of multimode.

Background

The water course and the oil duct leakproofness of water pump inside have directly decided its performance, consequently at the in-process of production water pump, the inner chamber of requirement water pump has higher leakproofness, must detect the leakproofness of water pump, the leakproofness of water pump detects the mode that uses water to examine more at present, whether the manual observation bubble is confirmed to reveal, the inefficiency, human eye observes easy fatigue for a long time, thereby easily produce the omission, the defective products flows into the market, there are few producers to use mass spectrometry to detect, although the precision is high, but the cost is expensive.

With the increasing precision of pressure sensors, the requirements of people on the degree of automation are increasing, at present, a certain pressure gas is injected into a channel, then the channel is closed, and a detection mode of judging the air tightness of the channel by detecting the pressure change of the channel through the pressure sensor is also more and more common; however, when a workpiece is detected in the existing structure, only one channel is generally detected at a time, so that the working efficiency is low, the use is inconvenient, and the mode cannot meet the requirement especially for detecting the corresponding channel; meanwhile, in the existing structure, when a workpiece is pressed and fastened, the plugging head firstly corresponds to an outlet of the channel, and when the upper pressing head completely presses the workpiece, the plugging head realizes plugging.

Disclosure of Invention

Defect and problem to existing equipment existence, the utility model provides a parallelly connected gas tightness detection device altogether of multimode, the effectual existing structure that exists of having solved among the existing equipment is low to multichannel gas tightness detection work efficiency and compresses tightly first structural accuracy requirement when the gas tightness detects high, causes the not tight problem of shutoff head shutoff passageway easily.

The utility model provides a scheme that its technical problem adopted is: a multi-module parallel connection simultaneous air tightness detection device comprises a rack, an upper pressing and plugging mechanism, a side plugging mechanism, a fixing groove and an inflation detection mechanism; the upper pressing and plugging structure comprises a driving device, a lifting seat, a plugging head and a pressing head; the driving device is connected with the lifting seat and used for driving the lifting seat to lift up and down, a base is arranged at the bottom of the lifting seat, a blocking head and a pressing head are arranged on the base, and the pressing head comprises a base, a central rod, a central sleeve, a positioning rod, a positioning sleeve, a spring and a pressing seat; the base is fixedly arranged at the bottom of the base, ear plates are arranged on two sides of the base, the central rod is fixed at the center of the bottom of the base, a central sleeve sleeved with the central rod correspondingly is arranged at the center of the pressing seat, the bottom of the positioning rod is fixed on the pressing seat, the upper part of the positioning rod is sleeved on the ear plates, a baffle is arranged at the end part of the positioning rod, the positioning sleeve is sleeved on the positioning rod, the upper part of the positioning rod is fixed at the bottom of the ear plates, and a spring is sleeved on the positioning rod and is positioned between the positioning sleeve and the pressing seat; the side plugging structure comprises a side cylinder and a plugging head, a fixing groove is formed in the rack and used for fixing a workpiece, the inflation detection mechanism comprises an air source, a main pipe, branch pipes and an inflation head, the air source is communicated with the branch pipes through the main pipe to form a multi-path air source, and the main pipe and the branch pipes are respectively provided with a pressure sensor and a control valve.

Furthermore, the control valve is an electromagnetic valve, the electromagnetic valve and the pressure sensor are connected with the controller, and an indicator lamp is arranged on the upper portion of the rack.

Furthermore, drive arrangement includes support frame, gas-liquid pressure cylinder and cylinder, the support frame is along setting up in the frame, and the lift seat is along horizontal setting to slide through the lift cover and set up on the guide bar of support frame, the gas-liquid pressure cylinder sets up in the middle part of the support frame, and the cylinder sets up in gas-liquid pressure cylinder both sides, and the drive end of gas-liquid pressure cylinder and cylinder is fixed on the lift seat, makes it along vertical ability reciprocating drive.

Furthermore, the fixing groove comprises a shell and a lower die, the lower die is detachably mounted in the shell, and the workpiece is nested in the lower die in a matching mode.

Furthermore, the compressing head and the plugging head are integrally or detachably connected with the base, a clamping table is arranged at the bottom of the lifting seat, and the base is clamped on the clamping table and fixed on the lifting seat through bolts penetrating through the clamping table and the base.

The utility model has the advantages that: the utility model provides a multichannel parallel connection simultaneous inspection inflation system, wherein the main pipe is a main path, the branch pipes are branch pipes, an inflation detection head is installed at the tail end of each branch pipe, the outlet of a workpiece channel is sealed, only one detection port is reserved in each channel, the inflation detection head is hermetically installed at the detection port, a plurality of branch pipes are inflated simultaneously through the main pipe, when the reading of a pressure sensor on the main pipe reaches a certain standard, the electromagnetic valve on the control main pipe of a controller is closed, the air supply is stopped, the reading judgment of the pressure sensor on the main pipe is carried out, whether air leakage occurs in all the channels or not is judged, if air leakage occurs, the electromagnetic valve on the control main pipe of the controller is opened, the air is inflated again until the reading of the pressure sensor reaches the detection standard, then the electromagnetic valve on the branch pipes is closed, and the reading of the pressure sensor on each branch pipe is read to judge the air tightness of each channel, determining a channel where leakage occurs; therefore, the utility model discloses can be quick when detecting detect the multichannel, especially to qualified work piece, once detect alright with detect simultaneously to a plurality of passageways, can once detect the completion to qualified work piece, detection efficiency improves greatly, if one of them passageway appears revealing, also can the short-term test through the pressure sensor on each minute pipe, convenient to use can filter the gas leakage passageway in qualified work piece and the multichannel fast.

Simultaneously the utility model discloses in improve the structure of clamp head, a clamp head that can cushion and compress tightly is provided, at first the clamp seat contacts with the work piece, the position to the work piece is in advance fixed, then continue the application of force, the clamp head is compressed along vertical orientation, its compression degree is bigger to the packing capacity of work piece more, the work piece is more firm, the shutoff head corresponds with the opening of passageway simultaneously, when the shutoff head seals the passageway completely, stop compressing tightly again can, need not consider the matching relation between clamp head and the shutoff head, can ensure the complete sealing of passageway; and the workpiece can be well pressed by adjusting the pressing degree and the elastic coefficient of the spring.

Therefore, the utility model discloses a parallelly connected gas filled structure of multichannel can carry out the while to the multichannel work piece and examine altogether fast, has improved the detection efficiency of work piece, sets up the structure of hold-down head simultaneously to but buffer structure, has not only ensured compressing tightly the effect of work piece, can ensure simultaneously that the shutoff head is sealed the passageway completely, novel structure, work efficiency is high, and is sealed effectual, has improved the precision that the work piece gas tightness detected.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the driving device.

Fig. 3 is a schematic structural diagram of the side plugging mechanism.

Fig. 4 is a schematic structural view of the pressing head.

FIG. 5 is a schematic view of an inflation detection mechanism.

The reference numbers in the figures are: the device comprises a frame 1, a support frame 2, a lifting sleeve 3, a lifting seat 4, a gas-liquid pressure cylinder 5, a cylinder 6, a base 7, a fixing groove 8, a lower die 9, a side cylinder 10, a blocking head 11, a base 12, a center rod 13, a pressing seat 14, a center sleeve 15, a positioning sleeve 16, a positioning rod 17, a spring 18, a baffle 19, an air source 20, an electromagnetic valve 21, a pressure sensor 22, a branch pipe 23, an inflation head 24 and a clamping table 25.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Example 1: this embodiment aims at providing parallelly connected gas tightness detection device of the same time of multimode, and mainly used work piece gas tightness detects, especially to the work piece of multichannel, and current mode detection efficiency is low, can not satisfy people's demand, and need go up the precision fit of shutoff head and pressure head in the current structure and just can realize the sealed of passageway on the work piece and the compressing tightly of work piece fixedly, on the basis of this, this embodiment provides parallelly connected gas tightness detection device of the same time of multimode.

As shown in fig. 1-3, a multi-module parallel connection simultaneous air tightness detection device comprises a frame 1, an upper pressing and plugging mechanism, a side plugging mechanism, a fixing groove 8 and an inflation detection mechanism; the bottom of this embodiment frame 1 is provided with equipment box and work piece case, still can set up as required and sweep a yard rifle, sweeps the bar code on the water pump assembly with sweeping a yard rifle to upload it to the host computer, and form the detection report form after detecting, frame area about 1200 x 800 (mm x mm), place or fix it on the terrace when the installation.

The upper pressing and plugging structure comprises a driving device, a lifting seat 4, a plugging head 11 and a pressing head; the driving device is connected with the lifting seat 4 and used for driving the lifting seat to lift up and down, a base 7 is arranged at the bottom of the lifting seat 4, a blocking head 11 and a pressing head are arranged on the base 7 and used for abutting against a workpiece to press the workpiece downwards, a sealing plug is arranged on the blocking head 11 and used for blocking an upper channel of the workpiece, and when the workpiece is pressed and fastened, a fixing groove 8 is formed in the rack 1 and used for fixing the workpiece from the bottom, the workpiece is nested in the fixing groove 8, and the workpiece is fixed by pressing force applied to the upper portion of the workpiece.

In order to ensure the matching between the pressing head and the plugging head 11, the pressing head is configured as a buffer structure in the embodiment, and specifically, the pressing head includes a base 12, a central rod 13, a central sleeve 15, a positioning rod 17, a positioning sleeve 16, a spring 18 and a pressing seat 14; the base 12 is fixedly installed at the bottom of the base 7, ear plates are arranged on two sides of the base 12, the central rod 13 is fixed at the center of the bottom of the base 12, a central sleeve 15 which is sleeved with the central rod correspondingly is arranged at the center of the pressing seat 14, and the lower portion of the central rod 13 is sleeved in the central sleeve 15 to play a main orientation role; the bottom of the positioning rod 17 is fixed on the pressing seat 14, the upper part of the positioning rod 17 is sleeved on the lug plate, the end part of the positioning rod 17 is provided with a baffle plate 19, the positioning sleeve 16 is sleeved on the positioning rod 17, the upper part of the positioning sleeve is fixed on the bottom of the lug plate, and the spring 18 is sleeved on the positioning rod 16 and is positioned between the positioning sleeve 16 and the pressing seat 14.

In this embodiment, the positioning sleeve 16, the ear plate and the base 14 are separated from the pressing seat 14 by the action of the spring, and the pressing seat is kept as an integral structure under the limitation of the baffle 19, when the pressing seat 14 is in butt contact with the designated part of the workpiece (which can be a plane or an irregular surface, and the butt joint can be realized by setting the shape of the pressing seat), along with the continuous increase of the pressure, the spring is compressed by 18, the central sleeve 15 slides directionally along the central rod 13, the positioning rod 17 slides along the positioning sleeve 16, so that the buffering type prepressing is realized, meanwhile, the sealing head is in sealing butt joint with the channel, and is continuously compressed under the pressure, when the spring is completely compressed, the spring is compressed to a certain degree or the central sleeve and the base are compressed, the maximum compression stroke is realized, and the complete sealing of the sealing head is realized at this time.

In the embodiment, the side plugging structure comprises a side cylinder 10 and a plugging head 11, after a workpiece is compacted, an outlet of a channel on the side surface of the workpiece is plugged by the pushing plugging head of the side cylinder 10, and the outlet at the bottom is plugged by a lower die in a fixed groove, so that each channel of the workpiece is only reserved with one detection port, high-pressure gas is injected into the detection port by using an inflation detection structure, the strength of the gas pressure in the channel is used as a detection standard, the inflation detection mechanism comprises a gas source 20, a main pipe, branch pipes and an inflation head 24, the gas source 20 is communicated with the branch pipes through the main pipe to form a multi-path gas source, and the main pipe and the branch pipes are both provided with a pressure sensor 22 and a control valve; the control valve is an electromagnetic valve 21, the electromagnetic valve 21 and the pressure sensor 22 are connected with the controller, and an indicating lamp is arranged on the upper portion of the rack and used for prompting whether a detection result is qualified or not.

The embodiment provides a multi-channel parallel connection simultaneous inspection inflation system, wherein a main pipe is a main path, branch pipes are branch pipes, an inflation detection head is installed at the tail end of each branch pipe, an outlet of a workpiece channel is sealed, only one detection port is reserved in each channel, the inflation detection head is installed at the detection port in a sealing mode, a plurality of branch pipes are inflated simultaneously through the main pipe, when the reading of a pressure sensor on the main pipe reaches a certain standard (the air source pressure is not less than 0.4MPa, the detection pressure range is 0-0.6 MPa), the electromagnetic valve on the main pipe is controlled to be closed through a controller, air supply is stopped, then whether air leakage occurs in all the channels is judged through the reading of the pressure sensor on the main pipe, if air leakage occurs, the electromagnetic valve on the main pipe is controlled to be opened by the controller, the air is inflated again until the reading of the pressure sensor reaches the detection standard, then the electromagnetic valves on the branch pipes are closed, and reading the readings of the pressure sensors on the branch pipes to judge the air tightness of each channel and determine the channel with leakage.

Therefore, the utility model discloses can be quick when detecting detect the multichannel, especially to qualified work piece, once detect alright with detect simultaneously to a plurality of passageways, to the qualified work piece of multichannel, once alright detect, and beat qualified label, if unqualified, indicate one of them passageway promptly and appear revealing, also can the short-term determination through the pressure sensor on each minute pipe, and beat and correspond the passageway and appear revealing, need do over again, high durability and convenient use can filter the gas leakage passageway in qualified work piece and the multichannel fast, give people and brought the facility.

Example 2: this example is substantially the same as example 1, except that: the present embodiment explains the structure of the driving device.

The driving device comprises a support frame 2, a gas-liquid pressure cylinder 5 and a cylinder 6, wherein the support frame 2 is arranged on a rack 1, a lifting seat 4 is transversely arranged and is arranged on a guide rod of the support frame 2 in a sliding mode through a lifting sleeve 3, the gas-liquid pressure cylinder 5 is arranged in the middle of the support frame 2, the cylinder 6 is arranged on two sides of the gas-liquid pressure cylinder 5, and the driving ends of the gas-liquid pressure cylinder and the cylinder are fixed on the lifting seat to enable the gas-liquid pressure cylinder and the cylinder to be driven to and fro along the vertical direction.

The embodiment realizes quick pre-pressing through the air cylinder and the gas-liquid pressure cylinder, realizes secondary pressing under the action of the gas-liquid pressure cylinder, and has strong pressing force and stable pressing.

Example 3: this example is substantially the same as example 1, except that: this embodiment can be applicable to the polymorphic type work piece.

The fixing groove 8 comprises a shell and a lower die 9, the lower die 9 is detachably mounted in the shell, a workpiece is embedded in the lower die 9 in a matching manner, the pressing head and the blocking head are integrally or detachably connected with the base, a clamping table 25 is arranged at the bottom of the lifting seat, and the base is clamped on the clamping table 25 and fixed on the lifting seat through bolts penetrating through the clamping table and the base; therefore, the model can be replaced in the embodiment, the method is also applicable to replacing different workpieces, corresponding branch pipes are selectively used according to the number of the channels, and the electromagnetic valves on the branch pipes which are not used are closed.

Claims

1. The utility model provides a parallelly connected gas tightness detection device of sharing time of multimode which characterized in that: the device comprises a rack, an upper pressing and plugging mechanism, a side plugging mechanism, a fixed groove and an inflation detection mechanism; the upper pressing and plugging structure comprises a driving device, a lifting seat, a plugging head and a pressing head; the driving device is connected with the lifting seat and used for driving the lifting seat to lift up and down, a base is arranged at the bottom of the lifting seat, a blocking head and a pressing head are arranged on the base, and the pressing head comprises a base, a central rod, a central sleeve, a positioning rod, a positioning sleeve, a spring and a pressing seat; the base is fixedly arranged at the bottom of the base, ear plates are arranged on two sides of the base, the central rod is fixed at the center of the bottom of the base, a central sleeve sleeved with the central rod correspondingly is arranged at the center of the pressing seat, the bottom of the positioning rod is fixed on the pressing seat, the upper part of the positioning rod is sleeved on the ear plates, a baffle is arranged at the end part of the positioning rod, the positioning sleeve is sleeved on the positioning rod, the upper part of the positioning rod is fixed at the bottom of the ear plates, and a spring is sleeved on the positioning rod and is positioned between the positioning sleeve and the pressing seat; the side plugging structure comprises a side cylinder and a plugging head, a fixing groove is formed in the rack and used for fixing a workpiece, the inflation detection mechanism comprises an air source, a main pipe, branch pipes and an inflation head, the air source is communicated with the branch pipes through the main pipe to form a multi-path air source, and the main pipe and the branch pipes are respectively provided with a pressure sensor and a control valve.

2. The multi-module parallel-connection simultaneous airtightness detection apparatus according to claim 1, wherein: the control valve is an electromagnetic valve, the electromagnetic valve and the pressure sensor are connected with the controller, and an indicating lamp is arranged on the upper portion of the rack.

3. The multi-module parallel-connection simultaneous airtightness detection apparatus according to claim 1, wherein: the driving device comprises a support frame, a gas-liquid pressure cylinder and a cylinder, wherein the support frame is arranged on the rack, the lifting seat is transversely arranged and is arranged on a guide rod of the support frame in a sliding mode through a lifting sleeve, the gas-liquid pressure cylinder is arranged in the middle of the support frame, the cylinder is arranged on two sides of the gas-liquid pressure cylinder, and the driving ends of the gas-liquid pressure cylinder and the cylinder are fixed on the lifting seat and can be driven to and fro along the vertical direction.

4. The multi-module parallel-connection simultaneous airtightness detection apparatus according to claim 1, wherein: the fixed slot includes shell and lower mould, and lower mould detachable installs in the shell, and the work piece matches the nestification in the lower mould.

5. The multi-module parallel-connection simultaneous airtightness detection apparatus according to claim 1, wherein: the pressing head and the blocking head are integrally or detachably connected with the base, a clamping table is arranged at the bottom of the lifting seat, and the base is clamped on the clamping table and fixed on the lifting seat through bolts penetrating through the clamping table and the base.