CN111896193B - Workpiece air tightness detection device - Google Patents
Workpiece air tightness detection device Download PDFInfo
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- CN111896193B CN111896193B CN202010606416.3A CN202010606416A CN111896193B CN 111896193 B CN111896193 B CN 111896193B CN 202010606416 A CN202010606416 A CN 202010606416A CN 111896193 B CN111896193 B CN 111896193B
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- 238000001514 detection method Methods 0.000 title claims abstract description 75
- 238000003825 pressing Methods 0.000 claims abstract description 59
- 238000003466 welding Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating 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
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- Examining Or Testing Airtightness (AREA)
Abstract
The invention relates to a workpiece air tightness detection device, which relates to the technical field of workpiece detection application, and comprises an air tightness detection assembly, a detection platform electrically connected with the air tightness detection assembly, a pressing tool for pressing the top of a workpiece downwards and a fixing tool for supporting and fixing the workpiece, wherein the air tightness detection assembly comprises an air tightness detector, a gas circuit connector and an air supply pump; during detection, the pressing tool tightly presses the workpiece above the fixing tool, so that a gap is not formed at the contact position between the workpiece and the fixing tool, and the detection accuracy is improved; meanwhile, the air ducts carry out inflation detection on each air path of the workpiece in turn, so that the detection accuracy and the detection efficiency are improved.
Description
Technical Field
The invention relates to the technical field of workpiece detection application, in particular to a workpiece air tightness detection device.
Background
After the production of the workpiece is finished, the airtightness of the workpiece needs to be detected, whether the workpiece has a welding leak or is tightly adhered is judged, and if the airtightness of the workpiece does not reach the standard, the workpiece is judged to be unqualified in production.
But the existing workpiece air tightness detection device still has certain defects when in use, the conventional detection device has the problems of easy occurrence of air tightness test misjudgment and inaccurate data when in use, and meanwhile, workpieces are fixed and troublesome when in detection, the detection efficiency is too low, and multiple groups of air circuits need to be detected manually and singly. Therefore, it is necessary to provide an automatic detecting device for detecting the airtightness of a workpiece.
Disclosure of Invention
In order to overcome the defects in the prior art, the workpiece air tightness detection device is high in detection efficiency and better in detection quality.
In order to achieve the purpose, the workpiece air tightness detection device comprises an air tightness detection assembly, a detection table, a pressing tool and a fixing tool, wherein the detection table is electrically connected with the air tightness detection assembly; .
Pressfitting frock detachable fixes on examining test table, and the pressfitting frock includes supporting seat, cylinder and pressfitting spare, and the cylinder is installed and is used for driving the pressfitting spare at the top of supporting seat to reciprocate, pressfitting spare bottom and the work piece up end looks adaptation that needs to detect, run through perpendicularly on pressfitting spare and the mounting panel and set up a plurality of air ducts, and air duct bottom block needs the gas circuit interface that detects the work piece, and the top of air duct is through the air feed interface of rubber hose connection gas circuit connector.
Fixed frock detachable fixes on examining test table, and the position of fixed frock and pressfitting frock is corresponding, fixed frock includes the bottom plate, backup pad and mounting, the bottom plate is fixed on examining test table's up end, bolt fixed support board is passed through at the bottom plate top, the top central point of backup pad puts the installation mounting, mounting and work piece bottom specification looks adaptation, the fixed work piece bottom of mounting block, and mounting one side sets up a plurality of air ducts perpendicularly, and the air duct top on the mounting feeds through the gas circuit interface that detects the work piece, the air feed interface of rubber hose connection gas circuit connector is passed through to the bottom.
Preferably, the supporting seat vertical fixation is on examining the up end of test table, the top vertical fixation cylinder of supporting seat, and the fixed plate is connected through the telescopic link to the cylinder, and the fixed plate is perpendicular setting, fixed plate lateral wall horizontal fixation mounting panel, mounting panel bottom fixed mounting pressfitting spare.
Preferably, two spouts are established to the perpendicular concave on the lateral wall of supporting seat, and the protruding slider that is used for the block spout that establishes of lateral wall of fixed plate, the inside wall level of fixed plate sets up a plurality of fixed slots of arranging from top to bottom, and mounting panel lateral wall block is in the fixed slot, and the mounting panel is fixed connection through the bolt and the mounting groove that both ends set up.
Preferably, the work piece includes the sub-spare and the sub-spare down, go up the sub-spare and form the gas circuit cavity with the sub-spare down through ultrasonic wave process welding together, wherein go up the sub-spare middle part and set up the arch that is the loop configuration, it sets up four mutually independent gas circuits to go up the sub-spare and lie in protruding outside position, the sub-spare welding is in the bottom of last sub-spare down, both ends form "V" font structure upwards inclining respectively about the sub-spare bottom down, the sub-spare middle part is the level setting down, the lower edge of sub-spare still sets up the lug that has the radian along the symmetry down, set up three mutually independent gas circuit on the sub-spare down.
Preferably, a gas-circuit connector is installed on a side wall of the airtightness detector, wherein seven gas-supply ports and one spare port are provided in total on the gas-circuit connector.
Preferably, the pressing piece comprises a connecting portion and a pressing plate, the connecting portion is of a cylindrical structure, the pressing plate is of a rectangular structure and is welded to the top end of the connecting portion and the bottom of the connecting portion, a pressing groove for clamping the pressing plate is formed in the middle of the bottom of the pressing plate in a concave mode, four air guide tubes and a standby tube vertically penetrate through the pressing plate, and the bottoms of the four air guide tubes on the pressing plate are respectively communicated with four air channels on the upper sub piece, and the top of the four air guide tubes on the pressing plate is respectively connected with four air supply interfaces on the air connector.
Preferably, the bottom plate is fixed on the detection table through bolts arranged at four corners, the left side and the right side of the upper end face of the bottom plate are respectively provided with a convex handle, the middle position of the bottom plate is concavely provided with a groove of a circular structure, rubber hoses for connecting air ducts on the inner sides of the fixing pieces penetrate through the grooves, and three air ducts respectively connected to three air passages of the lower sub-piece are respectively connected to three air supply interfaces on the air connector through the rubber hoses.
Preferably, the mounting includes fixed station and dead lever, first draw-in groove and second draw-in groove are established to the concave first draw-in groove of establishing in proper order on the fixed station lateral wall, first draw-in groove and second draw-in groove are the ladder setting, wherein the second draw-in groove is located the upper portion of first draw-in groove, and the specification of second draw-in groove is greater than first draw-in groove, the inside wall along the second draw-in groove is provided with the baffle that is convex structure, the dead lever vertical fixation is on examining the test table, and the dead lever passes first draw-in groove and second draw-in groove by supreme in proper order down, the top setting of dead lever is the backing plate of circular structure, the outer edge of backing plate is established a plurality of notches that are arc structure concavely.
The invention has the following beneficial effects:
the detachable pressing tool and the detachable fixing tool are arranged, so that different pressing tool and fixing tool combinations can be replaced, and the device is suitable for workpieces of different specifications; during detection, the pressing tool tightly presses the workpiece above the fixing tool, so that a gap is not formed at the contact position between the workpiece and the fixing tool, and the detection accuracy is improved; meanwhile, the air guide pipes are used for automatically inflating each air path of the workpiece in turn and performing circulating detection, so that the detection accuracy and the detection efficiency are improved.
Drawings
The present invention will be further described and illustrated with reference to the following drawings.
Fig. 1 is an overall structural schematic diagram of a workpiece airtightness detection apparatus.
Fig. 2 is a schematic structural view of a pressing tool of the workpiece airtightness detection device in fig. 1.
Fig. 3 is a schematic structural diagram of a fixing tool of the workpiece air tightness detection device in fig. 1.
Fig. 4 is a schematic view of a fixing member structure of the fixing tool in fig. 3.
FIG. 5 is a schematic diagram of the workpiece structure to be inspected by the airtightness inspection apparatus for workpiece shown in FIG. 1.
Reference numerals: 1. the air tightness detection assembly comprises an air tightness detection assembly 11, an air tightness detector 12, an air circuit connector 13, an air supply pump 14, an air supply interface 15, a spare interface 2, a pressing tool 21, a supporting seat 22, an air cylinder 23, a pressing piece 24, a telescopic rod 25, a fixing plate 26, a fixing groove 27, a mounting plate 28, a sliding groove 3, a fixing tool 31, a bottom plate 32, a supporting plate 33, a fixing piece 34, a handle 36, a first clamping groove 37, a second clamping groove 38, a baffle plate 39, a fixing rod 310, a backing plate 4, a detection platform 5, a workpiece 51, an upper sub-piece 52, a lower sub-piece 53, a bulge 54, an air circuit 55, a lug, 6 and an air guide pipe; 7. and (5) a spare pipe.
Detailed Description
The technical solution of the present invention will be more clearly and completely explained by the description of the preferred embodiments of the present invention with reference to the accompanying drawings.
Examples
As shown in fig. 1, a workpiece air tightness detection device comprises an air tightness detection assembly 1, a detection table 4 electrically connected with the air tightness detection assembly 1, a pressing tool 2 for pressing the top of a workpiece 5 downwards, and a fixing tool 3 for supporting and fixing the workpiece 5; the air tightness detection assembly 1 has the main functions of controlling the air tightness detection assembly 1 to inflate the workpiece 5 through the PLC control system, and judging the air tightness of the workpiece 5 by detecting the change of air pressure in the workpiece 5 after the air tightness detection assembly is kept for a period of time; the detection table 4 is electrically connected with the air tightness detection assembly 1, a control panel, a buzzer, a display lamp and a switch button which are connected with the air tightness detector are arranged on the side wall of the detection table 4, the working state of the air tightness detection assembly 1 can be controlled through the switch button, whether a product is qualified or not is judged through the buzzer and the display lamp, and detection data are read through the control panel; the pressing tool 2 and the fixing tool 3 are matched with each other, firstly the fixing tool 3 supports and fixes the bottom of the workpiece 5, then the pressing tool 2 moves downwards to fix the top of the workpiece 5, and the workpiece 5 is fixed between the fixing tool 3 and the pressing tool 2, so that the workpiece 5 can be kept stable during detection.
As shown in fig. 1, the airtightness detection assembly 1 includes an airtightness detector 11, a gas circuit connector 12, and a gas supply pump 13, a gas supply port of the gas supply pump 13 being connected to the airtightness detector 11, the airtightness detector 11 being connected to the gas circuit connector 12; the type of the air-tightness detector 11 adopted in this embodiment is JC-C10005, the air-tightness detector 11 controls the air supply pump 13 to inflate and maintain the air-tightness connector 12 through the PLC control system, and the air-tightness detector 11 is further provided with an air pressure sensor, and during detection, the air pressure sensor detects the air pressure change inside the workpiece 5, and determines whether the air-tightness of the workpiece 5 reaches the standard according to the air pressure change.
As shown in fig. 2, the pressing tool 2 is detachably fixed on the detection table, the pressing tool 2 includes a support base 21, an air cylinder 22 and a pressing piece 23, the air cylinder 22 is installed at the top of the support base 21 and used for driving the pressing piece 23 to move up and down, the bottom of the pressing piece 23 is matched with the upper end face of the workpiece 5 to be detected, a plurality of air ducts 6 vertically penetrate through the pressing piece 23 and the mounting plate 27, the bottom of the air duct 6 is clamped with an air path 54 interface of the workpiece 5 to be detected, and the top end of the air duct 6 is connected with the air supply interface 14 of the air connector 12 through a rubber hose; when the pressing tool 2 is used for pressing and fixing the workpiece 5, firstly, the air cylinder 22 drives the pressing piece 23 to vertically move downwards, the pressing piece 23 covers the top of the workpiece 5, air tightness between the top of the workpiece 5 and the pressing piece 23 is guaranteed, then the top end of the air guide tube 6 is connected with the air supply interface 14 of the air path 54 connector 12 through the rubber hose, and the air supply interface 14 fills quantitative air into the workpiece 5 through the rubber hose and the air guide tube 6 and keeps a certain period of time.
As shown in fig. 3, the fixing tool 3 is detachably fixed on the detection table, the fixing tool 3 corresponds to the pressing tool 2, the fixing tool 3 includes a bottom plate 31, a support plate 32 and a fixing member 33, the bottom plate 31 is fixed on the upper end surface of the detection table 4, the support plate 32 is fixed on the top of the bottom plate 31 through a bolt, the fixing member 33 is installed at the center of the top of the support plate 32, the fixing member 33 is adapted to the bottom specification of the workpiece 5, the fixing member 33 is clamped and fixed on the bottom of the workpiece 5, a plurality of air ducts 6 are vertically arranged on one side of the fixing member 33, the tops of the air ducts 6 on the fixing member 33 are communicated with an air path 54 interface of the workpiece 5, and the bottoms of the air ducts are connected with the air supply interface 14 of the air path 54 connector 12 through a rubber hose; when the workpiece 5 is fixed by the fixing tool 3, the fixing piece 33 is clamped at the bottom of the fixed workpiece 5, the air guide pipe 6 on one side of the fixing piece 33 is connected with the air supply interface 14 of the air circuit connector 12 through the rubber hose, and the air supply interface 14 fills quantitative air into the workpiece 5 through the rubber hose and the air guide pipe 6 and keeps a certain period of time.
As shown in fig. 5, the workpiece 5 to be inspected in this embodiment includes an upper sub-part 51 and a lower sub-part 52, the upper sub-part 51 and the lower sub-part 52 are welded together by an ultrasonic process, after the welding is completed, there are 7 groups of complicated air paths 54 on both sides, respectively, and the air tightness requirement is: the leakage value is 1 MILLIBAR, wherein the middle part of the upper sub-part 51 is provided with a bulge 53 in an annular structure, four mutually independent air passages 54 are arranged at the position of the upper sub-part 51 outside the bulge 53, the lower sub-part 52 is welded at the bottom of the upper sub-part 51, the left end and the right end of the bottom end of the lower sub-part 52 are respectively inclined upwards to form a V-shaped structure, the middle part of the lower sub-part 52 is horizontally arranged, the lower edge of the lower sub-part 52 is also symmetrically provided with a lug 55 with a radian, and the lower sub-part 52 is provided with three mutually independent air passages 54; the workpiece 5 needs to detect whether the air paths 54 of the upper sub 51 and the lower sub 52 are well sealed.
As shown in fig. 1, the gas circuit connector 12 is installed on a side wall of the gas circuit 54 detector, wherein the gas circuit connector 12 is provided with seven gas supply interfaces 14 and a spare interface 15, the seven gas supply interfaces 14 are respectively connected to the seven gas circuits 54 on the workpiece 5, and a certain amount of gas is sequentially filled into the gas circuits inside the workpiece 5 through the seven gas circuits 54 and is kept, after a period of time, the gas tightness detector detects the change of the gas pressure in the gas circuits 54 through an internally arranged gas pressure sensor, and during detection, the gas circuit detection error value is accurate to be less than or equal to 0.08 milllbar.
As shown in fig. 2, the supporting base 21 is vertically fixed on the upper end surface of the detecting table 4, the top of the supporting base 21 is vertically fixed with the cylinder 22, the cylinder 22 is connected with the fixing plate 25 through the expansion link 24, the fixing plate 25 is vertically arranged, the side wall of the fixing plate 25 is horizontally fixed with the mounting plate 27, the bottom of the mounting plate 27 is fixedly provided with the pressing piece 23, the outer side wall of the fixing plate 25 is convexly provided with two sliders for clamping the sliding chute 28, the inner side wall of the fixing plate 25 is horizontally provided with a plurality of fixing grooves 26 arranged up and down, the side wall of the mounting plate 27 is clamped in the fixing grooves 26, the mounting plate 27 is fixedly connected with the mounting groove through the bolts arranged at both ends, the cylinder 22 drives the fixing plate 25 to vertically move downwards through the expansion link 24, the fixing plate 25 drives the pressing piece 23 under the mounting plate 27 and the mounting plate 27 to move downwards, while the fixing plate 25 moves downwards, the sliders on the outer side wall of the fixing plate 25 vertically slide downwards along the sliding chute 28 on the side wall of the supporting plate 32, ensuring the stability of the fixing plate 25 when displaced downward;
as shown in fig. 2, the pressing member 23 includes a connecting portion and a pressing plate, the connecting portion is a cylindrical structure, the top end of the connecting portion is fixedly connected to the mounting plate 27, the bottom of the connecting portion is welded to the pressing plate which is rectangular, a pressing groove for engaging the protrusion 53 is concavely arranged in the middle of the bottom of the pressing plate, four air ducts 6 and a spare tube 7 vertically penetrate through the pressing plate, wherein the spare tube 6 is used for connecting to the spare interface 15, other workpieces with eight air paths can be detected, and the bottom ends of the four air ducts 6 on the pressing plate are respectively communicated with four air paths 54 on the upper sub-member 51, and the top ends are respectively connected to the four air supply interfaces 14 on the air connector 12; the pressing part 23 covers the upper end part of the workpiece 5 during detection, four air ducts 6 penetrating through the pressing part 23 are connected to four air passages 54 of the upper part 51 in a clamping manner, the four air ducts 6 are filled with quantitative air into the four air passages 54, because the bottom of the pressing plate is concavely provided with the pressing groove for clamping the bulge 53, when the pressing plate is pressed on the workpiece 5, the pressing groove is tightly clamped at the upper end part of the bulge 53, a closed structure is formed between the bulge 53 and the pressing groove, the workpiece can be firmly fixed by the pressing plate, when the air pressure is detected, a certain amount of air is sequentially filled into the four air passages 54 through the air connector 12 by the four air ducts 6, the air pressure is kept for a period of time after the air inflation, the air pressure variation in the air passages is detected by an air pressure sensor inside the air connector at the set time, so as to judge whether the air tightness of each air passage of the workpiece 5 is qualified, and during the detection, the four air passages are sequentially detected one by one, the gas circuit with problems can be found in time.
As shown in fig. 3, the left and right sides of the upper end surface of the bottom plate 31 are respectively provided with a handle 34 in a protruding manner, the middle position of the bottom plate 31 is provided with a concave groove of a circular structure, a rubber hose connected with an air duct 6 at the inner side of the fixing member 33 penetrates through the concave groove, and the three air ducts 6 respectively connected with the three air passages 54 of the lower sub-member 52 are respectively connected with the three air supply interfaces 14 on the air connector 12 through the rubber hoses, the fixing member 33 comprises a fixing platform and a fixing rod 39, the side wall of the fixing platform is sequentially provided with a first clamping groove 36 and a second clamping groove 37 in a concave manner, the first clamping groove 36 and the second clamping groove 37 are arranged in a stepped manner, wherein the second clamping groove 37 is positioned at the upper part of the first clamping groove 36, the second clamping groove 37 is larger than the first clamping groove 36 in size, a baffle 38 in an arc structure is arranged along the inner side wall of the second clamping groove 37, the fixing rod 39 is vertically fixed on the detection platform 4, and the fixing rod 39 sequentially penetrates through the first clamping groove 36 and the second clamping groove 37 from bottom to top, a backing plate 310 in a circular structure is arranged at the top of the fixing rod 39; when the fixing member 33 is used for fixing the workpiece 5, firstly, an oblique edge at the bottom of the lower sub-member 52 is aligned with the second clamping groove 37, the protruding piece 56 is clamped at the inner side of the second clamping groove 37, the bottom of the protruding piece 56 is supported and fixed through a stepped surface formed by the first clamping groove 36 and the second clamping groove 37, meanwhile, the baffle 38 supports the half side edge of the lower sub-member 52, the fixing rod 39 penetrates through the top of the first clamping groove 36 to be provided with the backing plate 310, the backing plate 310 supports and fixes the horizontal surface at the bottom of the lower sub-member 52, and the whole workpiece 5 is fixed and kept stable at the bottom through the fixing table and the fixing rod 39; when the workpiece 5 is fixed, the three air ducts 6 are clamped and connected with the three air passages 54 on the lower sub-piece 52, the rubber hoses penetrate through the grooves to connect the three air ducts 6 with the air supply interface 14 of the air-supply connector 12, the air-supply connector 12 controls the air-supply pump 13 to respectively fill quantitative air into 3 air passages through the three air ducts 6, and the air pressure variation in the air passages is detected by an air pressure sensor in the air-supply connector at a set time, so that whether the air tightness of each air passage of the workpiece 5 is qualified or not is judged.
The above detailed description merely describes preferred embodiments of the present invention and does not limit the scope of the invention. Without departing from the spirit and scope of the present invention, it should be understood that various changes, substitutions and alterations can be made herein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents. The scope of the invention is defined by the claims.
Claims (7)
1. The utility model provides a work piece gas tightness detection device, includes gas tightness determine module, is electric connection's detection platform, with the pressfitting frock of the downward pressfitting in work piece top and the fixed frock that is used for supporting fixed work piece with gas tightness determine module, its characterized in that: the air tightness detection assembly comprises an air tightness detector, a gas circuit connector and an air supply pump, wherein an air supply port of the air supply pump is connected with the air tightness detector, and the air tightness detector is connected with the gas circuit connector;
the pressing tool is detachably fixed on the detection table and comprises a supporting seat, an air cylinder and a pressing piece, the air cylinder is installed at the top of the supporting seat and used for driving the pressing piece to move up and down, the bottom of the pressing piece is matched with the upper end face of a workpiece to be detected, a plurality of air guide pipes vertically penetrate through the pressing piece and the mounting plate, the bottom of each air guide pipe is clamped with an air channel interface of the workpiece to be detected, and the top end of each air guide pipe is connected with an air supply interface of an air connector through a rubber hose;
the fixing tool is detachably fixed on the detection table and corresponds to the pressing tool in position, the fixing tool comprises a bottom plate, a supporting plate and a fixing piece, the bottom plate is fixed on the upper end face of the detection table, the supporting plate is fixed at the top of the bottom plate through a bolt, the fixing piece is installed at the center of the top of the supporting plate and is matched with the bottom specification of a workpiece, the fixing piece is clamped and fixed at the bottom of the workpiece, a plurality of air guide tubes are vertically arranged on one side of the fixing piece, and the tops of the air guide tubes on the fixing piece are communicated with an air channel interface of the detection workpiece, and the bottoms of the air guide tubes on the fixing piece are connected with an air supply interface of an air circuit connector through rubber hoses;
the work piece includes sub-spare and lower sub-spare, go up sub-spare and lower sub-spare and pass through ultrasonic wave technology welding and form the gas circuit cavity together, wherein go up sub-spare middle part and set up the arch that is the loop configuration, it is located and sets up four mutually independent gas circuits on protruding outside position to go up the sub-spare, the sub-spare welding is in the bottom of sub-spare down, both ends tilt up respectively about sub-spare bottom down form "V" font structure, sub-spare middle part is the level setting down, the lower edge of sub-spare still symmetry sets up the lug that has the radian down, set up three mutually independent gas circuit down on the sub-spare.
2. The workpiece airtightness detection apparatus according to claim 1, wherein: the supporting seat vertical fixation is on examining the up end of examining the test table, the top vertical fixation cylinder of supporting seat, the cylinder passes through the telescopic link and connects the fixed plate, the fixed plate is perpendicular setting, fixed plate lateral wall horizontal fixation mounting panel, mounting panel bottom fixed mounting pressfitting spare.
3. The workpiece airtightness detection apparatus according to claim 2, wherein: the utility model discloses a fixing device for fixing a supporting seat, including supporting seat, mounting panel lateral wall, mounting panel, bolt, mounting groove, two spouts are established to the perpendicular concave two spouts of establishing on the lateral wall of supporting seat, the protruding slider that is used for the block spout of establishing of lateral wall of fixed plate, the inside wall level of fixed plate sets up a plurality of fixed slots of arranging from top to bottom, mounting panel lateral wall block is in the fixed slot, just the mounting panel is fixed connection through the bolt and the mounting groove that both ends set up.
4. The workpiece airtightness detection apparatus according to claim 1, wherein: the gas circuit connector is installed on the side wall of the airtightness detector, wherein seven gas supply ports and one spare port are arranged on the gas circuit connector in total.
5. The workpiece airtightness detection apparatus according to claim 4, wherein: the pressfitting spare includes connecting portion and clamp plate, connecting portion are the cylinder structure, connecting portion top fixed connection mounting panel, bottom welding are the clamp plate of rectangle structure, the concave indent that is used for the bellied indent of block that establishes in the bottom intermediate position of clamp plate, pass four air ducts and a stand-by pipe on the clamp plate perpendicularly, just four air duct bottoms on the clamp plate communicate four gas circuits on the top sub-spare respectively, four air feed interfaces on the air circuit connector are connected respectively on the top.
6. The workpiece airtightness detection apparatus according to claim 4, wherein: the bottom plate passes through the bolt fastening of four corners setting on examining test table, the equal protruding handle of establishing in bottom plate up end left and right sides, the concave recess of establishing circular structure of intermediate position of bottom plate, pass the rubber hose who connects the inboard air duct of mounting in the recess, and connect respectively three air duct on the three gas circuit of sub-spare passes through rubber hose and connects the three air feed interface on the gas circuit connector respectively down.
7. The workpiece airtightness detection apparatus according to claim 4, wherein: the mounting includes fixed station and dead lever, first draw-in groove and second draw-in groove are established to the concave in proper order on the fixed station lateral wall, first draw-in groove and second draw-in groove are the ladder setting, wherein the second draw-in groove is located the upper portion of first draw-in groove, just the specification of second draw-in groove is greater than first draw-in groove, follows the inside wall of second draw-in groove is provided with the baffle that is convex structure, the dead lever vertical fixation is on examining the test table, just the dead lever passes first draw-in groove and second draw-in groove by supreme in proper order down, the top setting of dead lever is the backing plate of circular structure, the outer edge concave notch of establishing a plurality of arc structures that are of backing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010606416.3A CN111896193B (en) | 2020-06-29 | 2020-06-29 | Workpiece air tightness detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010606416.3A CN111896193B (en) | 2020-06-29 | 2020-06-29 | Workpiece air tightness detection device |
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| CN111896193A CN111896193A (en) | 2020-11-06 |
| CN111896193B true CN111896193B (en) | 2022-09-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202033159U (en) * | 2011-03-31 | 2011-11-09 | 长城汽车股份有限公司 | Air tightness detector for car lamps |
| CN108195519A (en) * | 2018-01-17 | 2018-06-22 | 苏州精锐精密机械有限公司 | Quick air-tightness precise testing device and test method |
| CN110530585A (en) * | 2019-09-25 | 2019-12-03 | 苏州市格范五金塑胶工业有限公司 | A kind of part cracking verifying attachment |
| CN110631775A (en) * | 2019-09-27 | 2019-12-31 | 无锡众颖汽车零部件有限公司 | Workpiece air tightness detection device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5386319B2 (en) * | 2009-11-19 | 2014-01-15 | 株式会社アルバック | Leak detection system |
| CN104614134B (en) * | 2015-02-03 | 2018-12-21 | 中信戴卡股份有限公司 | A method of detection aluminium alloy wheel hub air-tightness |
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2020
- 2020-06-29 CN CN202010606416.3A patent/CN111896193B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202033159U (en) * | 2011-03-31 | 2011-11-09 | 长城汽车股份有限公司 | Air tightness detector for car lamps |
| CN108195519A (en) * | 2018-01-17 | 2018-06-22 | 苏州精锐精密机械有限公司 | Quick air-tightness precise testing device and test method |
| CN110530585A (en) * | 2019-09-25 | 2019-12-03 | 苏州市格范五金塑胶工业有限公司 | A kind of part cracking verifying attachment |
| CN110631775A (en) * | 2019-09-27 | 2019-12-31 | 无锡众颖汽车零部件有限公司 | Workpiece air tightness detection device |
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