CN108956059B - Be used for airtight detection device of new forms of energy battery case - Google Patents

Be used for airtight detection device of new forms of energy battery case Download PDF

Info

Publication number
CN108956059B
CN108956059B CN201811147860.2A CN201811147860A CN108956059B CN 108956059 B CN108956059 B CN 108956059B CN 201811147860 A CN201811147860 A CN 201811147860A CN 108956059 B CN108956059 B CN 108956059B
Authority
CN
China
Prior art keywords
main body
body frame
frame
air
workbench
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201811147860.2A
Other languages
Chinese (zh)
Other versions
CN108956059A (en
Inventor
郑芳川
马华辉
王咸田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujian Ars Robot Engineering Technology Co ltd
Original Assignee
Fujian Ars Robot Engineering Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujian Ars Robot Engineering Technology Co ltd filed Critical Fujian Ars Robot Engineering Technology Co ltd
Priority to CN201811147860.2A priority Critical patent/CN108956059B/en
Publication of CN108956059A publication Critical patent/CN108956059A/en
Application granted granted Critical
Publication of CN108956059B publication Critical patent/CN108956059B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/32Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
    • G01M3/3236Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers
    • G01M3/3272Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers for verifying the internal pressure of closed containers
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/32Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
    • G01M3/3281Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators removably mounted in a test cell
    • G01M3/329Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators removably mounted in a test cell for verifying the internal pressure of closed containers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

The invention discloses an airtight detection device for a new energy battery shell, which comprises a main body frame, a feeding frame, a workbench and an air source box, wherein a side beam, a top beam, a side pressure air cylinder and a lower pressure air cylinder are arranged on the main body frame, the feeding frame and the main body frame are arranged in a T shape, one end of the feeding frame extends into the bottom of the main body frame and is fixedly connected with the main body frame, a sliding rail and the feeding air cylinder are arranged on the feeding frame, the workbench is arranged above the feeding frame in a sliding manner through the sliding rail, a clamping block and an air injection device are arranged on the workbench, the air source box is arranged in the main body frame, and an air source processor and an air source controller are arranged in the air source box.

Description

Be used for airtight detection device of new forms of energy battery case
Technical Field
The invention relates to the technology of the field of airtight detection equipment, in particular to an airtight detection device for a new energy battery shell.
Background
The new energy battery shell is a shell for wrapping the battery main body part, so long as the new energy battery shell is a protection device for reducing the influence of external environmental factors on the internal structure of the battery and preventing leakage of components in the battery, and of course, in the production and processing process of the new energy battery shell, strict requirements are required on the air tightness of the new energy battery shell, and the current most main detection method is to judge whether the air tightness of the new energy battery shell meets the standards or not by plugging a leak hole preset in the shell, pressurizing the interior of the leak hole and observing air pressure change.
Disclosure of Invention
Aiming at the problems, the invention provides the air tightness detection device for the new energy battery shell, which has obvious air tightness detection effect on the new energy battery shell, does not need manual operation during detection, has higher automation degree, saves labor cost and greatly improves detection efficiency.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a be used for new energy battery case airtight detection device, includes main body frame, pay-off frame, workstation and air supply box, the main body frame is the cuboid frame that the closure of many metal body of rod formed main body frame both sides respectively are equipped with a curb girder the main body frame top is equipped with a plurality of back timber, each curb girder and back timber all level transversely set up and both ends all with main body frame fixed connection set firmly a plurality of side pressure cylinders on the curb girder, and each the flexible end of side pressure cylinder all faces main body frame inside setting, each the flexible end tip of side pressure cylinder all is equipped with first shutoff piece, in each the top beam set firmly a plurality of lower pressure cylinders, and each lower pressure cylinder's flexible end all vertically orientation main body frame inside setting, each lower pressure cylinder's flexible end tip all is equipped with the second shutoff piece, the pay-off frame with main body frame becomes the T type setting, just pay-off frame one end extend into main body frame bottom and with main body frame fixed connection, and each upper pressure cylinder's flexible end tip all is equipped with first shutoff piece, and each side pressure cylinder's flexible end tip is equipped with first shutoff piece, and air supply box are equipped with the workstation, and air supply box set up in the corresponding to be equipped with in the air supply device is equipped with in the air supply box under the air supply device.
Further, the device also comprises an air pressure detection device, wherein the air pressure detection device comprises a digital display pressure gauge and a pressure sensor, the digital display pressure gauge is used for displaying the intensity of air pressure injected into the workpiece to be detected on the workbench, the digital display pressure gauge is arranged on the outer side of the main body frame, the pressure sensor is arranged on the workbench, and the digital display pressure gauge is in signal connection with the pressure sensor.
Further, the gas injection device is a miniature high-pressure gas pump with the model PCF5015N, and the positions of the gas injection device are distributed on the edge of the upper surface of the workbench.
Furthermore, the bottom of the main body frame is provided with a plurality of first foot cups for adjusting the height, the bottom of the front end of the feeding frame is provided with a plurality of second foot cups for adjusting the height, and the main body frame and the feeding frame enable the device to be horizontally arranged by adjusting the first foot cups and the second foot cups.
Further, a feeding cylinder for controlling the workbench to slide on the feeding frame is further arranged at the tail end of the feeding frame extending into the main body frame, the telescopic end of the feeding cylinder is fixedly connected with the workbench, and the feeding cylinder is connected with the air source processor to work and is controlled by the air source controller.
As can be seen from the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages:
the invention provides an airtight detection device for a new energy battery shell, which is characterized in that a shell to be detected is fixed on a workbench through a clamping block on the upper surface of the workbench, the workbench is driven to move towards the inside of a main body frame along a sliding rail arranged on a feeding frame by controlling shrinkage of a feeding cylinder, when the device reaches a specified position, the shell to be detected is further fixed and blocked through a first blocking block by controlling elongation of a lateral pressure cylinder, meanwhile, the expansion end of a lower pressure cylinder stretches downwards to abut against the upper surface of the shell, a second blocking block is tightly pressed and blocked on the leakage hole on the upper surface of the shell, the shell is tightly attached to the workbench to form a closed space, air is injected into the closed space through an air injection device for pressurization, the internal air pressure of a pressure sensor is changed and a numerical value is displayed through a digital display pressure meter, after the preset value is reached, the pressurization is stopped, the pressurization is kept for a period of time, if the internal air pressure of the digital display pressure meter is not changed greatly, the product is judged to be qualified, otherwise, the product is discharged to be in a normal pressure state after the detection is finished, the internal air of the shell is controlled to be in sequence, the lower pressure cylinder and the first blocking block and the upper surface of the shell are separated from the workbench, the shell and the workbench are separated from the workbench, the workbench and the workbench is stretched to the main body, and the workbench is separated from the shell and the main body is stretched; the invention has obvious air tightness detection effect on the new energy battery shell, does not need manual operation during detection, has higher automation degree, saves labor cost and greatly improves detection efficiency.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of a device for detecting the airtight of a new energy battery case according to the present invention;
FIG. 2 is a front view of an airtight detection apparatus for a new energy battery casing according to the present invention;
FIG. 3 is a side view of an airtight detection apparatus for a new energy battery casing according to the present invention;
FIG. 4 is a top view of an airtight detection apparatus for a new energy battery casing according to the present invention;
in the figure: the device comprises a main body frame 1, a workbench 2, a feeding frame 3, an air source box 4, a digital display pressure gauge 5, a side beam 11, a top beam 12, a side pressure cylinder 13, a lower pressure cylinder 14, a first foot cup 15, an air injection device 21, a clamping block 22, a sliding rail 31, a feeding cylinder 32, a second foot cup 33, an air source processor 41, an air source controller 42, a first blocking block 130 and a second blocking block 140.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
Referring to fig. 1-4, an airtight detection device for a new energy battery shell comprises a main body frame 1, a feeding frame 3, a workbench 2 and an air source box 4, wherein the main body frame 1 is a cuboid frame formed by encircling a plurality of metal rod bodies, two sides of the main body frame 1 are respectively provided with a side beam 11, the top of the main body frame 1 is provided with a plurality of top beams 12, each side beam 11 and each top beam 12 are horizontally and transversely arranged, two ends of each side beam 12 are fixedly connected with the main body frame 1, a plurality of side pressure cylinders 13 are fixedly arranged on the side beam 11, the telescopic ends of each side pressure cylinder 13 are arranged towards the inside of the main body frame 1, the telescopic end parts of each side pressure cylinder 13 are respectively provided with a first blocking block 130, a plurality of lower top beams 14 are fixedly arranged on each lower top beam 12, the telescopic ends of each lower pressure cylinder 14 are vertically arranged towards the inside of the main body frame 1, the end parts of the telescopic ends of the lower pressure cylinders 14 are respectively provided with a second blocking block 140, the feeding frame 3 and the main body frame 1 are arranged in a T shape, one end of the feeding frame 3 extends into the bottom of the main body frame 1 and is fixedly connected with the main body frame 1, the upper part of the feeding frame 3 is provided with a sliding rail 31, the working table 2 is arranged above the feeding frame 3 in a sliding way through the sliding rail 31, the setting height of the working table 2 is slightly smaller than the setting height of the upper side beam 11 of the main body frame 1, the working table 2 is provided with a plurality of clamping blocks 22 and an air injection device 21 for fixing a workpiece to be detected, each clamping block 22 corresponds to the lower pressure cylinder 14, the end of the feeding frame 3 extending into the main body frame 1 is also provided with a feeding cylinder 32 for controlling the working table 2 to slide on the feeding frame 3, the telescopic end of the feeding cylinder 32 is fixedly connected with the workbench 2, the air source box 4 is arranged at the bottom of the main body frame 1, an air source processor 41 and an air source controller 42 are arranged inside the air source box 4, each of the side pressure cylinder 13, the lower pressure cylinder 14, the air injection device 21 and the feeding cylinder 32 is connected with the air source processor 41 to work and is controlled by the air source controller 42, a plurality of first foot cups 15 for adjusting the height are arranged at the bottom of the main body frame 1, a plurality of second foot cups 33 for adjusting the height are arranged at the bottom of the front end of the feeding frame 3, the main body frame 1 and the feeding frame 3 enable the device to be horizontally arranged by adjusting each of the first foot cups 15 and the second foot cups 33, the air pressure detecting device further comprises an air pressure detecting device, the digital display pressure meter 5 and a pressure sensor (not labeled) for displaying the air pressure intensity of the workpiece to be detected inside the workbench, the digital display pressure meter 5 is arranged at the outer side of the main body frame, the pressure sensor is arranged on the workbench 2, and the digital display pressure meter 5 is connected with the digital display pressure meter through signals.
In this embodiment, the air source controller 42 is a TPC8-8TDLS type controller, a 24V switching power supply is configured, each cylinder is configured with a dc 24V solenoid valve, and the input end is configured with a start switch, a stop switch, and a manual switch, and naturally, in other embodiments, various inductive switches such as a magnetic switch, a proximity switch, or a photoelectric switch may be configured; the control of various actions of the cylinder such as timing control, inductive switch control, circulation control and the like can be conveniently realized.
In this embodiment, the air injection device 21 adopts a micro high-pressure air pump with the model of PCF5015N, which has the advantages of small volume, low noise, low power consumption, high pressure, easy operation, no maintenance, continuous operation for 24 hours, and rich moisture in medium, and most importantly, the air injection device is dry and oil-free, does not need vacuum pump oil or lubricating oil, does not pollute working medium, does not interfere with analysis of the medium, and the like, and has a relatively low price.
When in use, the shell to be detected is fixed on the workbench 2 through the clamping block 22 on the upper surface of the workbench 2, the workbench 2 is driven to move towards the inside of the main body frame 1 along the sliding rail 31 arranged on the feeding frame 3 by controlling the contraction of the feeding cylinder 32, when the specified position is reached, the shell to be detected is further fixed and blocked with the leakage holes on the side edge of the shell through controlling the extension of the side pressure cylinder 13 and utilizing the first blocking block 130, meanwhile, the telescopic end of the lower pressure cylinder 14 extends downwards to prop against the upper surface of the shell, the second blocking block 140 compresses and blocks the leakage holes on the upper surface of the shell, the shell and the workbench 2 are sealed and attached to form a closed space, air is injected into the closed space through the air injection device 21 to pressurize, the pressure sensor senses the change of the internal air pressure of the closed space and displays the numerical value through the digital display pressure gauge 5, after the pressure sensor reaches a preset value, the pressure is stopped, the digital display pressure gauge 5 is kept still for a period of time, if the digital display pressure gauge 5 displays that the internal air pressure of the shell is not changed greatly, the product is judged to be qualified, otherwise, the product is not qualified, after the detection is finished, the internal air of the shell is discharged to a normal pressure state, then the lower pressure cylinder 14 and the side pressure cylinder 13 are sequentially controlled to be contracted, the first blocking block 130 and the second blocking block 140 are separated from the upper shell of the workbench 2, the feeding cylinder 32 is controlled to be extended, the workbench 2 and the shell arranged on the workbench 2 are conveyed out of the main body frame 1 along the sliding rail 31, finally the clamping block 22 is loosened, the shell is taken out, and the detection is finished; the invention has obvious air tightness detection effect on the new energy battery shell, does not need manual operation during detection, has higher automation degree, saves labor cost and greatly improves detection efficiency.
Although embodiments of the present invention 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 therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (3)

1. The utility model provides a be used for new forms of energy battery shell airtight detection device which characterized in that: including main body frame (1), pay-off frame (3), workstation (2) and air source case (4), main body frame (1) is the cuboid frame that forms of enclosing of many metal body of rod body each be equipped with a curb girder (11) main body frame (1) both sides each be equipped with a plurality of roof beams (12) top, each curb girder (11) and roof beam (12) all level transversely set up and both ends all with main body frame (1) fixed connection on curb girder (11) a plurality of side pressure cylinder (13), and each the flexible end of side pressure cylinder (13) all is towards main body frame (1) inside sets up, each the flexible end tip of side pressure cylinder (13) all is equipped with first shutoff piece (130), and each the last a plurality of lower pressure cylinder (14) that have set up of roof beam (12), and each lower pressure cylinder (14) flexible end all vertically orientation main body frame (1) inside sets up, each lower pressure cylinder (14) tip is equipped with second shutoff piece (13) and extends into frame (3) extension frame (1) extension type one end, pay-off frame (3) extension frame (1) extension portion extension (1), the workbench (2) is slidably arranged above the feeding frame (3) through the sliding rail (31), the arrangement height of the workbench (2) is slightly smaller than that of the upper side beam (11) of the main body frame (1), a plurality of clamping blocks (22) and an air injection device (21) for fixing a workpiece to be detected are arranged on the workbench (2), the clamping blocks (22) correspond to the lower air cylinder (14), the air source box (4) is arranged at the bottom of the main body frame (1), an air source processor (41) and an air source controller (42) are arranged inside the air source box (4), and the side air cylinder (13), the lower air cylinder (14) and the air injection device (21) are all connected with the air source processor (41) to work and are controlled by the air source controller (42);
the device comprises a main body frame (1), a workbench (2) and a pressure sensor, and is characterized by further comprising a pressure detection device, wherein the pressure detection device comprises a digital display pressure gauge (5) and a pressure sensor, the digital display pressure gauge (5) is used for displaying the pressure intensity of the injected gas into the workpiece to be detected of the workbench, the digital display pressure gauge (5) is arranged on the outer side of the main body frame (1), the pressure sensor is arranged on the workbench (2), and the digital display pressure gauge (5) is in signal connection with the pressure sensor;
the bottom of the main body frame (1) is provided with a plurality of first foot cups (15) for adjusting the height, the bottom of the front end of the feeding frame (3) is provided with a plurality of second foot cups (33) for adjusting the height, and the main body frame (1) and the feeding frame (3) enable the device to be horizontally arranged by adjusting the first foot cups (15) and the second foot cups (33).
2. The air tightness detection device for a new energy battery case according to claim 1, wherein: the air injection device (21) is a miniature high-pressure air pump, and the positions of the air injection device are distributed on the edge of the upper surface of the workbench (2).
3. The air tightness detection device for a new energy battery case according to claim 1, wherein: the feeding frame (3) extends into the tail end of the inside of the main body frame (1) and is further provided with a feeding air cylinder (32) for controlling the workbench (2) to slide on the feeding frame (3), the telescopic end of the feeding air cylinder (32) is fixedly connected with the workbench (2), and the feeding air cylinder (32) is connected with the air source processor (41) to work and is controlled by the air source controller (42).
CN201811147860.2A 2018-09-29 2018-09-29 Be used for airtight detection device of new forms of energy battery case Active CN108956059B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811147860.2A CN108956059B (en) 2018-09-29 2018-09-29 Be used for airtight detection device of new forms of energy battery case

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811147860.2A CN108956059B (en) 2018-09-29 2018-09-29 Be used for airtight detection device of new forms of energy battery case

Publications (2)

Publication Number Publication Date
CN108956059A CN108956059A (en) 2018-12-07
CN108956059B true CN108956059B (en) 2024-03-19

Family

ID=64472405

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811147860.2A Active CN108956059B (en) 2018-09-29 2018-09-29 Be used for airtight detection device of new forms of energy battery case

Country Status (1)

Country Link
CN (1) CN108956059B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2802490Y (en) * 2004-08-18 2006-08-02 重庆力帆实业(集团)有限公司 Gas-tight, precision testing stage for engine cylinder end
CN204202836U (en) * 2014-11-07 2015-03-11 浙江德众汽车零部件制造有限公司 A kind of kettle air-tightness detection device
CN105486472A (en) * 2016-01-28 2016-04-13 上海甬兴塑胶有限公司 Leak detection test apparatus for washing machine kettle assembly
CN107687922A (en) * 2017-09-15 2018-02-13 郑州斯倍思机电有限公司 A kind of air tightness test platform for converter cover
CN207717300U (en) * 2017-12-12 2018-08-10 上海凌云工业科技有限公司 A kind of novel air tightness detection apparatus
CN209043555U (en) * 2018-09-29 2019-06-28 福建奥瑞斯机器人工程技术有限公司 One kind being used for new energy battery case air tightness detection apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2802490Y (en) * 2004-08-18 2006-08-02 重庆力帆实业(集团)有限公司 Gas-tight, precision testing stage for engine cylinder end
CN204202836U (en) * 2014-11-07 2015-03-11 浙江德众汽车零部件制造有限公司 A kind of kettle air-tightness detection device
CN105486472A (en) * 2016-01-28 2016-04-13 上海甬兴塑胶有限公司 Leak detection test apparatus for washing machine kettle assembly
CN107687922A (en) * 2017-09-15 2018-02-13 郑州斯倍思机电有限公司 A kind of air tightness test platform for converter cover
CN207717300U (en) * 2017-12-12 2018-08-10 上海凌云工业科技有限公司 A kind of novel air tightness detection apparatus
CN209043555U (en) * 2018-09-29 2019-06-28 福建奥瑞斯机器人工程技术有限公司 One kind being used for new energy battery case air tightness detection apparatus

Also Published As

Publication number Publication date
CN108956059A (en) 2018-12-07

Similar Documents

Publication Publication Date Title
CN201331418Y (en) Air-tightness detection device of shell body
CN203053654U (en) Gas tightness detection device
CN203479465U (en) Device for detecting airtightness of vehicle vacuum tank
CN203432431U (en) Pressure sealing devices and anti-pressure capability detecting tester and system used for porous flat tube for air condition heat exchanger
CN108956059B (en) Be used for airtight detection device of new forms of energy battery case
CN104266800A (en) Air impermeability detecting table for sluice valve
CN209043555U (en) One kind being used for new energy battery case air tightness detection apparatus
CN210802798U (en) Intercooler core group air tightness test device
CN103033317B (en) Testing tool of air cylinder end cover
CN206146603U (en) Part gas tightness detection tool
CN208999235U (en) A kind of brickmaking finished bricks rigidity detection device
CN217111366U (en) Air tightness detection device for tire production
CN216717736U (en) Closed gas tightness testing platform
CN208688747U (en) Kettle leakage inspector
CN212296832U (en) Device for detecting main shaft displacement of variable displacement compressor
CN207997149U (en) Bloom fixture
CN207066687U (en) Automobile engine cylinder head water channel oil duct leak detecting device
CN209176225U (en) Save the stretching-machine of power source
CN203385519U (en) Airtightness detection equipment
CN220490314U (en) Detection device for valve production
CN105258865A (en) High-precision waterproof test apparatus
CN206593976U (en) A kind of block pressure test device
CN108827548A (en) Kettle leakage inspector and its detection method
CN112857691A (en) Intercooler core group air tightness test device
CN217845549U (en) Towards tooth ware gas tightness testing arrangement

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant