CN108692883A

CN108692883A - Filter seals automatic detection device

Info

Publication number: CN108692883A
Application number: CN201810892037.8A
Authority: CN
Inventors: 丁正龙; 陈婷婷; 李标; 朱亮; 彭稳
Original assignee: Anhui Institute of Information Engineering
Current assignee: Anhui Institute of Information Engineering
Priority date: 2018-08-07
Filing date: 2018-08-07
Publication date: 2018-10-23

Abstract

The invention discloses a kind of filter seals automatic detection devices, including piece uploading conveying mechanism and filter seals testing agency and lower part conveying mechanism, the filter seals testing agency includes detection platform and is located at the gas hood that can be depressed in detection platform, gas hood is equipped with gas nozzle, corresponding gas hood, which is equipped with, can tense filter port the close locking structure in detection platform, and the detection platform is equipped with the stomata for the air inlet into filter cavity.The filter seals automatic detection device reasonable design, one group filter being sealed property detects automatically simultaneously, easy to operate, and detection efficiency greatly improved;And it is not necessary that dedicated filter end part seal lid is arranged, detect accurate stable.

Description

Automatic detection device for filter tightness

Technical Field

The invention relates to the technical field of filter detection, in particular to an automatic detection device for the sealing performance of a filter.

Background

The problem of sealing between the end of the filter and the cover plate in the end of the filter is easy to occur, so that the produced filter needs to be subjected to sealing detection. The current filter leakproofness detects does not have special detection device, detects atmospheric pressure through artifical tip seal mostly, and detection efficiency is low, detects reliable and stable nature poor.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an automatic detection device for the sealing performance of a filter, so as to achieve the aim of high detection efficiency.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

this automatic detection device for filter leakproofness includes a conveying mechanism and a filter leakproofness detection mechanism and a lower conveying mechanism, filter leakproofness detection mechanism includes testing platform and establishes the gas hood that can push down in the testing platform top, is equipped with the air cock on the gas hood, corresponds the gas hood and is equipped with the tight structure that can be with the filter port take-up on testing platform, the last gas pocket that is used for admitting air in to the filter cavity that is equipped with of testing platform.

Further, filter leakproofness detection mechanism includes the base and establishes the rotation detection dish on the base, testing platform is a set of, and a set of testing platform equipartition is on the rotation detection dish.

The upper part conveying mechanism comprises an upper part frame, a conveying belt arranged on the upper part frame and an upper part guide rod arranged on the upper part frame and used for guiding the filter of the upper part.

The lower conveying mechanism comprises a lower frame, a conveying belt arranged on the lower frame and a lower guide rod arranged on the lower frame and used for guiding the filter of the lower piece.

Still including detecting the water box, it is linked together with the air cock on the gas hood to detect the water box through the pipeline.

Still include pressure sensor, pressure sensor corresponds the air cock setting of gas cover.

The gas hood is of a cylindrical structure with an opening at the lower end, and an annular sealing ring is arranged on the opening end face of the lower end.

And a pressing cylinder is arranged above the detection platform, and the end part of a piston rod of the pressing cylinder is connected with the top of the gas hood.

The detection platform is of a disc structure, and the air hole is formed in the center of the disc.

Still including detecting water box and pressure sensor, the air cock on the air shroud is two, and an air cock links to each other with detecting the water box, and another air cock links to each other with pressure sensor.

And a rubber pad is arranged on the upper surface of the detection platform.

The air hood is internally provided with a lining, the lower end of the lining is provided with an opening for sleeving the filter, and the lining is provided with a through hole for ventilation inside and outside.

The compact structure is a compression structure used for compressing the filter on the detection platform.

The tight structure is used for pulling down the filter to make the end part of the filter and the detection platform fit and seal the pull-down structure.

The rotation detection disc is arranged on the base through a bearing, and a motor used for driving the rotation detection disc to rotate is arranged on the base.

The rotation detection disc is a circular ring disc.

And a bent guide rod for adjusting the position of the filter is arranged on the upper part frame corresponding to the initial upper part.

The tail end of the upper rack is provided with an upper impeller structure used for moving the filter to the detection platform.

The upper guide rod is arranged on the upper frame through a support, a waist-shaped hole is formed in the lower end of the support, and the upper guide rod penetrates through the waist-shaped hole through a bolt to be fixed.

The upper guide rod comprises a straight rod section and an arc-shaped section, and the curved guide rod and the straight rod section are oppositely arranged on two sides of the conveying belt.

And a timing structure for adjusting the distance between the front filter and the rear filter is arranged in the upper rack in front of the upper impeller structure.

The upper impeller structure comprises a rotating shaft, a rotating disc arranged on the rotating shaft, a group of poking plates arranged on the rotating disc and a driving structure for driving the rotating shaft to rotate.

The support is a Z-shaped plate.

The convex outer edge of the bent guide rod is arranged close to the conveying belt.

The timing structure is a pair of telescopic baffle structures, a space capable of containing a filter is formed between the two baffles, and the telescopic direction of the baffles is perpendicular to the advancing direction of the conveying belt.

The timing structure comprises a telescopic cylinder and a sliding block, the sliding block is arranged on a piston rod of the telescopic cylinder, a baffle is arranged on the sliding block, and a guide rod for guiding the sliding block is arranged on the upper rack.

And a lower impeller structure used for moving a filter on the detection platform to a lower conveying belt is arranged on the lower rack corresponding to the detection platform.

The lower guide rod is arranged on the lower frame through a support, a waist-shaped hole is formed in the lower end of the support, and the lower guide rod penetrates through the waist-shaped hole through a bolt to be fixed.

The lower impeller structure comprises a rotating shaft, a rotating disc arranged on the rotating shaft, a group of poking plates arranged on the rotating disc and a driving structure for driving the rotating shaft to rotate.

And a pushing-out structure for pushing out the waste is arranged on the lower rack behind the lower impeller structure.

The support is a Z-shaped plate.

The lower guide rod is an arc-shaped rod corresponding to the poking plate.

The push-out structure comprises a push cylinder and a push plate, the push cylinder is arranged on the lower rack, and the push plate is arranged at the end part of the piston rod of the push cylinder.

The lower rack is provided with a waste box, and the waste box and the pushing cylinder are arranged on two sides of the lower conveying belt oppositely.

An opening is formed in the position, corresponding to the push plate, of the lower guide rod.

Still including the detection camera that corresponds detection water box setting, it is transparent water box to detect the water box.

The upper part of the water detection box is provided with an air outlet channel, and the air outlet channel is a bent channel.

And a water communicating vessel is arranged in the detection water box, and one end of the water communicating vessel is communicated with an air nozzle on the air cover.

The lower opening of the gas hood is provided with a flange, an annular groove is arranged on the flange surface, and a sealing ring is arranged in the annular groove.

And an elastic gasket is arranged at the inner top of the air hood.

The top of gas hood is equipped with the connector, and the connector links to each other with the piston rod end of pushing down the cylinder.

The connector passes through the helicitic texture with the piston rod tip of push down the cylinder and links to each other, corresponds the piston rod and is equipped with the anti-rotation guide arm that is used for preventing the piston rod rotation.

The bushing is of a cylindrical structure with an opening at the lower end.

The gas hood is a metal gas hood, and the lining is a plastic lining.

And grooves are arranged on the outer side surface of the bushing corresponding to the through holes.

And a magnet structure is arranged at the top of the bushing.

And the top of the bushing is provided with a top plate which can be axially adjusted along the bushing.

And a chamfer is arranged on the inner edge of the opening at the lower end of the bushing.

The groove on the bushing is an annular groove.

The groove is arranged corresponding to the air tap on the air cover.

The top of the bush is provided with a group of positioning holes, the magnet structure is a group of magnetic columns, and the magnetic columns are arranged in the positioning holes.

The top barrel mouth of bush is equipped with the internal thread, is equipped with the external screw thread with internal thread looks adaptation on the roof.

The outer surface of the top plate is provided with a group of holes which are convenient for the rotation operation of the top plate.

The compressing structure is a compressing cylinder arranged at the inner top of the gas hood.

The compressing structure is a compressing spring arranged at the top in the gas hood.

The compressing structure comprises a compressing block, and a compressing groove matched with the closed end of the filter is formed in the compressing block.

The pressing block is a rubber block.

The pull-down structure comprises a pull-down cylinder and a hook structure which is arranged on the pull-down cylinder and can be inserted into a threaded hole at the opening end of the filter and open, the pull-down cylinder is positioned below the detection platform, and the hook structure is positioned in the air hole.

The pull-down structure comprises a pull-down cylinder and a threaded cylinder which is arranged on the pull-down cylinder and can rotate to be matched with a threaded hole at the opening end of the filter, the pull-down cylinder is located below the detection platform, and the threaded cylinder is located in the air hole.

The hook structure comprises two opposite half structures, and barb structures which can be staggered and opened are arranged at the tops of the two half structures.

And a spring structure for pressing the top of the filter is arranged at the inner top of the air cover.

The spring structure comprises an upper plate, a lower plate and a spring, wherein the upper plate is arranged at the inner top of the gas hood, and the spring is arranged between the upper plate and the lower plate.

The bottom of the rotation detection disc is provided with an outer gear ring, and the motor is provided with a gear meshed with the outer gear ring.

The group of detection platforms are circumferentially arranged on the rotary detection disc, and the detection platform corresponding to the upper piece conveying mechanism is adjacent to the detection platform corresponding to the lower piece conveying mechanism.

The center position department that rotates the detection dish is equipped with vertical barrel holder, and a set of gas hood of testing platform top all corresponds and establishes on the outer wall of vertical barrel holder.

And the rotary detection disc is provided with a holding positioning mechanism corresponding to each detection platform and used for adjusting and correcting the position of the filter on the detection platform.

The clasping positioning mechanism comprises a pair of clasps and a driving structure for driving the clasps to clasp tightly.

The holding hand comprises a bent hand grip and a straight hand grip which are correspondingly arranged.

The driving structure is arranged on the inner side of the detection platform.

The inner ends of the pair of holding hands are respectively arranged on the pair of gears which are meshed with each other, and the driving structure is connected with the gears.

The driving structure is a pushing cylinder, and the end part of a piston rod of the pushing cylinder is connected with a gear through a rotating arm.

The driving structure is a driving motor, and an output shaft of the driving motor is connected with a rotating shaft of a gear.

The pull-down structure is arranged below the filter detection platform and comprises a pull-down cylinder, a hook structure used for stretching into the filter to be deviated inside the filter to hook the filter and a driving structure used for driving the hook structure to deviate, and the hook structure and the driving structure are arranged on the pull-down cylinder.

The hook structure is a pair of hooks capable of offsetting.

The driving structure comprises a pushing cylinder, a rotating shaft and a turntable, a push rod of the push rod cylinder is connected with the rotating shaft through a rotating arm, the turntable is connected with one end of the rotating shaft, and the turntable is connected with the lower part of the hook structure through a pin shaft.

An air cylinder used for introducing air into the filter is arranged between the detection platform and the pull-down cylinder, an air inlet is formed in the air cylinder, and a through hole is formed in the detection platform corresponding to the hook structure.

The rotating shaft is arranged in a piston rod of the pull-down cylinder, the pushing cylinder is arranged below the pull-down cylinder through a support, and the rotary disc is arranged at the upper end of the piston rod.

The inflator is internally provided with a connecting ring which can move along the axial direction of the inflator, the upper end of the piston rod is connected with the connecting ring, the lower part of the hook structure is positioned in the connecting ring, and a hook cover plate which is used for limiting the axial movement of the connecting ring at the lower part of the hook structure is arranged in the connecting ring.

An air hole for ventilation is arranged between the connecting ring and the inner wall of the inflator.

The bottom of clamping ring is equipped with the circular port, and the carousel is rotatable to be established in the circular port.

The turntable is provided with a waist-shaped hole matched with the pin shaft.

The two waist-shaped holes which are arranged on the rotary disc and opposite to the pair of hooks are symmetrically arranged.

Collude the hand structure including can misplace the relative a pair of colluding the hand that sets up of skew, collude the hand and include the bottom plate and establish the cylinder on the bottom plate, the tip of cylinder is equipped with the portion of colluding that outwards stretches out.

The bottom plates are strip-shaped plates, and the side planes of the two bottom plates are matched.

The ends of the hook hands are semicircular, and the ends of the two hook hands form a complete circle when combined together.

The column body is divided into an upper section and a lower section, and the column body forms a column structure with a large lower part and a small upper part.

The columns of the pair of hooks are matched through a plane.

The top of colluding the hand is equipped with the step groove, colludes the portion through step groove formation.

The lower part of the column body corresponding to the hook part is a notch.

The surface of the column body below the hook part is an arc surface.

Compared with the prior art, the invention has the following advantages:

the automatic detection device for the sealing performance of the filter has reasonable design, a group of filters can automatically detect the sealing performance at the same time, the operation is simple and convenient, and the detection efficiency is greatly improved; and need not to set up the sealed lid of dedicated filter tip, it is accurate stable to detect.

Drawings

The contents of the description and the references in the drawings are briefly described as follows:

FIG. 1 is a schematic view of an overall inspection apparatus according to the present invention.

FIG. 2 is a second overall view of the detecting device of the present invention.

FIG. 3 is a third overall view of the detecting device of the present invention.

FIG. 4 is a fourth overall view of the detecting device of the present invention.

FIG. 5 is a first schematic view of a feeding and discharging mechanism according to the present invention.

FIG. 6 is a second schematic view of the feeding and discharging mechanism of the present invention.

FIG. 7 is a third schematic view of the feeding and discharging mechanism of the present invention.

FIG. 8 is a schematic view of the detection mechanism of the present invention.

FIG. 9 is a schematic view of the lower portion of the detecting mechanism of the present invention.

FIG. 10 is a schematic view of the inspection station of the present invention.

FIG. 11 is a first schematic view of a lower portion of a testing platform according to the present invention.

FIG. 12 is a second schematic view of the lower portion of the testing platform of the present invention.

FIG. 13 is a schematic view of a filter construction.

FIG. 14 is a schematic view of the gas shield structure of the present invention.

Fig. 15 is a schematic view of the bushing structure of the present invention.

FIG. 16 is a schematic view of a water detecting box according to the present invention.

In the figure:

1. an upper piece conveying mechanism, 101, a bent guide rod, 102, a timing structure, 103, an upper piece impeller structure, 104, an upper piece conveying belt, 105, an upper piece guide rod, 2, a lower piece conveying mechanism, 201, a lower piece impeller structure, 202, a pushing structure, 203, a waste box, 204, a lower piece guide rod, a feeding mechanism, a feeding,

3. The detection device comprises a base, a motor, a 4-rotation detection disc, a 401-detection platform, a 402-pull-down cylinder, a 403-rotation cylinder, a 404-pull shaft, a 5-air cover, a 501-air cover cylinder, a 502-connector, a 503-air cover lower flange, a 504-air nozzle, a 6-press cylinder, a 7-cylinder frame, a 401-detection platform, a 403-pull-down cylinder, a 403-rotation cylinder, a 404-pull shaft, a 5-air cover, a 501-,

8. A holding positioning mechanism, 801, a bent gripper, 802, a straight gripper, 803, a driving wheel, 804, a driven wheel, 805, a pushing cylinder,

9. A filter, 901 sealing rings,

10. Bushing 1001, top plate 1002, magnetic column 1003, through hole 1004, annular groove 1004,

11. The water detection box comprises 1101 air inlets, 1102 air outlets.

Detailed Description

The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.

As shown in fig. 1 to 16, the automatic filter tightness detection device comprises an upper piece conveying mechanism 1, a filter tightness detection mechanism and a lower piece conveying mechanism 2; wherein, filter leakproofness detection mechanism includes testing platform 401 and establishes the gas hood 5 that can push down above the testing platform, is equipped with air cock 504 on the gas hood 5, corresponds the gas hood and is equipped with the tight structure that can be taut on testing platform with the filter port, is equipped with the gas pocket that is used for admitting air in the filter cavity on the testing platform.

Carry the vertical filter that will wait to detect to testing platform through last conveying mechanism on, the lower extreme opening of filter is located testing platform, testing platform's gas pocket is located the lower extreme opening of filter, the gas hood downstream covers the filter that waits to detect, the gas hood compresses tightly sealedly with testing platform through the sealing washer of lower extreme, it is sealed on testing platform to compress tightly sealing washer 901 with 9 port departments of filter through tight structure, admit air to the filter cavity in through the gas pocket on testing platform, whether there is gaseous outflow through the air cock that detects on the gas hood, thereby detect whether there is the leakage in the filter tip. If the air tap has air flowing out, the filter leaks to be waste. And after the detection is finished, the filter is conveyed out through the lower conveying mechanism.

Filter leakproofness detection mechanism includes base 3 and establishes rotation detection dish 4 on the base, and the base is circular base, rotates to detect the dish and is the annular dish, and testing platform is a set of testing platform equipartition on rotating the detection dish, and a set of testing platform 401 circumference is arranged on rotating detection dish 4 promptly. The detection platform corresponding to the upper piece conveying mechanism is adjacent to the detection platform corresponding to the lower piece conveying mechanism, so that one group of filters can be detected at one time, and the upper piece and the lower piece can be automatically finished; the detection efficiency is greatly improved.

The rotation detection plate 4 is arranged on the base 3 through a bearing, a motor 301 for driving the rotation detection plate to rotate is arranged on the base, the base comprises a bottom plate and a cylinder body arranged on the bottom plate, and the bearing and the rotation detection plate are connected through a group of banners, so that the structure is compact.

The bearing is arranged on the cylinder of the base, the outer edge of the bearing is provided with an outer gear ring, the motor is provided with a gear meshed with the outer gear ring, the motor drives the rotation detection disc to rotate, and the automatic loading and unloading are realized by matching with the loading conveying mechanism and the unloading conveying mechanism.

The upper piece conveying mechanism comprises an upper piece frame, an upper piece conveying belt 104 arranged on the upper piece frame and an upper piece guide rod 105 arranged on the upper piece frame and used for guiding a filter of an upper piece; the tail end of the upper rack is provided with an upper impeller structure 103 used for moving the filter to the detection platform.

A bent guide rod 101 for adjusting the position of the filter is arranged on the upper part frame corresponding to the initial upper part, and the convex outer edge of the bent guide rod 101 is arranged close to the conveying belt, so that the position accuracy of the filter on the conveying belt is ensured; the upper guide rod 105 comprises a straight rod section and an arc section, the bent guide rod and the straight rod section are arranged on two sides of the conveying belt relatively, and the arc section corresponds to the upper impeller structure, so that the filter can be conveniently moved onto the detection platform.

The upper guide rod 105 is arranged on the upper frame through a support, the lower end of the support is provided with a kidney-shaped hole, and the kidney-shaped hole is penetrated through a bolt for fixing; the support is Z style of calligraphy template, can adjust the position of the relative conveyer belt of upper part guide bar through waist type hole, adapts to the filter of different dimensions.

The upper impeller structure 103 comprises a rotating shaft, a rotating disc arranged on the rotating shaft, a group of shifting plates arranged on the rotating disc and a driving structure for driving the rotating shaft to rotate, the arc-shaped section of the upper guide rod is arranged corresponding to the outer ends of the shifting plates, and the automatic loading is realized by rotating the shifting plates to move the filter on the detection platform.

A timing structure 102 for adjusting the distance between the front filter and the rear filter is arranged on the upper frame in front of the upper impeller structure; preferably, the timing structure 102 is a pair of retractable baffles, a space for placing a filter is formed between the two baffles, and the retractable direction of the baffles is perpendicular to the advancing direction of the conveying belt; the timing structure comprises a telescopic cylinder and a sliding block, the sliding block is arranged on a piston rod of the telescopic cylinder, a baffle is arranged on the sliding block, and a guide rod for guiding the sliding block is arranged on the upper rack. The distance between the filters on the conveying belt is ensured through the timing mechanism, so that the filters are ensured to be arranged one at a time.

The lower piece conveying mechanism 2 comprises a lower piece frame, a conveying belt arranged on the lower piece frame and a lower piece guide rod 204 which is arranged on the lower piece frame and used for guiding a filter of the lower piece, wherein the part, corresponding to the poking plate, of the lower piece guide rod is an arc-shaped rod; the lower part frame is provided with a lower impeller structure 201 corresponding to the detection platform and used for moving the filter on the detection platform to the lower conveying belt.

The lower guide rod 204 is arranged on the lower frame through a support, a waist-shaped hole is formed in the lower end of the support, the waist-shaped hole is fixed through a bolt, and the support is a Z-shaped plate. The position of the lower guide rod relative to the conveying belt can be adjusted through the waist-shaped hole, so that the filter is suitable for filters with different sizes and specifications.

The lower impeller structure 201 includes a rotating shaft, a rotating disc disposed on the rotating shaft, a set of dial plates disposed on the rotating disc, and a driving structure for driving the rotating shaft to rotate. A pushing-out structure 202 used for pushing out the waste is arranged on the lower rack behind the lower impeller structure.

The pushing structure 202 comprises a pushing cylinder and a push plate, the pushing cylinder is arranged on the lower rack, and the push plate is arranged at the end part of a piston rod of the pushing cylinder; be equipped with waste product box 203 on the lower carriage, waste product box and promotion cylinder are located lower conveyer belt both sides and set up relatively, and the lower guide bar corresponds push pedal department and is equipped with the opening, can realize rejecting the waste product automatically, improves detection efficiency by a wide margin.

The drive structure of the upper conveying mechanism and the lower conveying mechanism is the same, the upper conveying mechanism and the lower conveying mechanism are both driven by a motor, transmission gears are arranged on a rotating shaft of the upper conveying mechanism and a rotating shaft of the lower conveying mechanism, an upper gear for driving a rotation detection disc is arranged on the upper portion of a motor of the base, a lower gear is arranged on the lower portion of the motor of the base, the lower gear is connected with the two transmission gears through a chain or a toothed belt, the upper conveying mechanism and the lower conveying mechanism utilize the same drive structure with the rotation detection disc, the upper conveying mechanism, the lower conveying mechanism and the rotation detection disc are synchronous in motion, the upper conveying mechanism and the lower conveying mechanism are synchronous in motion, and the automatic.

A lower air cylinder 6 is arranged above the detection platform, and the end part of a piston rod of the lower air cylinder 6 is connected with the top of the air hood. The gas hood is of a cylindrical structure with an opening at the lower end, an annular sealing ring is arranged on the opening end face of the lower end, and the gas hood is pressed down to be matched with the detection platform through the lower end sealing ring of the gas hood so as to realize the lower end sealing of the gas hood.

Preferably, a lower opening of the gas hood is provided with a gas hood lower flange 503, the gas hood cylinder body 501 and the gas hood lower flange are connected together, an annular groove is formed in the flange surface, and the sealing ring is arranged in the annular groove; the top of the air hood is provided with a connector 502 which is connected with the end part of a piston rod of the lower air cylinder; the connector links to each other through helicitic texture with the piston rod tip of push down the cylinder, corresponds the piston rod and is equipped with the anti-rotation guide arm that is used for preventing the piston rod rotation, connects portably.

The rotation detection disc is a circular disc, a vertical barrel frame 7 is arranged at the center of the rotation detection disc, and a group of gas hoods above the detection platform are correspondingly arranged on the outer wall of the vertical barrel frame. Specifically, a set of pressing cylinders are uniformly distributed on the outer edge of the vertical cylinder, and a set of gas hood is positioned right above the corresponding detection platform.

A rubber pad is arranged on the upper surface of the detection platform; the inner top of the gas hood 5 is provided with an elastic gasket, and the elastic gasket is in flexible contact with the inner top, so that the requirement on the machining precision of the surface of a workpiece can be reduced, and the sealing effect is improved.

The filter tightness result is represented by detecting a water box or a pressure sensor. Wherein, the air inlet 1101 that detects water box 11 is linked together through pipeline and air cock 504 on the gas hood, corresponds the detection camera that detects the water box setting, detects the water box and is transparent water box, detects sealing performance through detecting the bubble in the water box, and it catches bubble analysis filter through detecting the camera is automatic whether to have the leakage.

An air outlet channel is arranged at the upper part of the detection water box 11, an air outlet 1102 is arranged at the end part of the air outlet channel, and air pressure is controlled through the air outlet channel; because there is the bubble with water spill, bend the passageway with the air outlet channel design for preventing water spill. Or, a water communicating vessel is arranged in the detection water box, and one end of the water communicating vessel is communicated with an air nozzle on the air cover.

The pressure sensor is arranged corresponding to the air nozzle of the air cover, the pressure display is arranged corresponding to the pressure sensor, and the tightness of the filter is detected by detecting the pressure change at the air nozzle.

Furthermore, the number of the air nozzles on the air cover is two, one air nozzle is connected with the water detection box, the other air nozzle is connected with the pressure sensor, and the detection result is accurate and reliable.

The detection platform is of a disc structure, and the air hole is formed in the center of the disc, so that the structure is compact. The compact structure is a compression structure used for compressing the filter on the detection platform; or a pull-down structure used for pulling down the filter to enable the end part of the filter to be attached and sealed with the detection platform.

The compressing structure is a compressing cylinder arranged at the inner top of the gas hood, or a compressing spring arranged at the inner top of the gas hood, or a compressing block, a compressing groove matched with the closed end of the filter is arranged on the compressing block, and the compressing block is a rubber block. After the air cover is pressed down for sealing, the filter is pressed and sealed through the pressing structure.

The pull-down structure comprises a pull-down cylinder 402 and a hook structure which is arranged on the pull-down cylinder and can be inserted into a threaded hole at the opening end of the filter and open, the pull-down cylinder is positioned below the detection platform, and the hook structure is positioned in an air hole. The structure of colluding the hand includes that relative two halves structure that sets up, but two halves structure tops are equipped with dislocation open's barb structure, and pull down cylinder's piston rod is for drawing axle 404, corresponds to draw the axle lower extreme and is equipped with and is used for driving to draw axle pivoted rotating cylinder 403 to realize colluding the hand structure and open.

Or the pull-down structure comprises a pull-down cylinder and a threaded cylinder which is arranged on the pull-down cylinder and can be rotatably matched with a threaded hole at the opening end of the filter, the pull-down cylinder is positioned below the detection platform, and the threaded cylinder is positioned in the air hole; the threaded column body is matched with an opening threaded hole of the filter and pulled down through a pull-down cylinder, and a sealing ring at the opening end of the filter is tightly pressed and sealed with the detection platform.

Deviation exists when the threaded cylinder is matched with the threaded hole; in order to facilitate the screwing of the threaded cylinder, the inner top of the air hood is provided with a spring structure for pressing the top of the filter 9; preferably, the spring structure includes upper plate and hypoplastron and spring, and the upper plate is established at the interior top of gas hood, and the spring is established between upper plate and hypoplastron, is convenient for screw thread cylinder screw in through spring structure adjustment position.

The detection gas hood is of a cylindrical structure and comprises a gas hood cylinder body, wherein a gas hood lower flange is arranged at the lower part of the gas hood cylinder body and is provided with a rubber sealing ring; the gas hood is a metal gas hood. The gap between the inner wall of the gas hood and the outer wall of the filter is large, so that the bubbles coming out of the detection water box are unstable, and the detection camera is not convenient to capture and analyze.

The filter size specification is more, and the distance between some gas hood inner walls and the filter outer wall is very big, influences the analysis of testing result. Therefore, a lining 10 is arranged in the air hood, an opening used for being sleeved on the filter is formed in the lower end of the lining, and a through hole 1003 for ventilating inside and outside is formed in the lining, so that the range of an air cavity between the air hood and the filter is ensured, the stability of bubbles coming out of the detection water box is ensured, and the capture analysis is facilitated.

The bushing 10 is a plastic bushing, preferably a nylon bushing. The bush is a cylinder structure with an opening at the lower end, and the inner edge of the opening at the lower end of the bush is provided with a chamfer angle, so that the filter can be conveniently sleeved in.

Be equipped with the recess corresponding through-hole department on the lateral surface of bush, the through-hole is in the recess, and the recess on the bush is annular groove 1004, and the recess sets up with the air cock on the gas hood correspondingly, avoids bush and air cock laminating to influence normally giving vent to anger.

The top of the bushing is provided with a top plate 1001 which can be axially adjusted along the bushing; preferably, the top nozzle of bush is equipped with the internal thread, is equipped with the external screw thread with internal thread looks adaptation on the roof, is equipped with a set of hole of the roof rotation operation of being convenient for on the surface of roof, the roof rotation operation of being convenient for. The top plate in the top cylinder opening of the lining is adjusted to be a position, so that the device is suitable for detection of filters with different heights.

The top of bush is equipped with the magnet structure, and the bush is adjustable in gas cover position to be convenient for change, adapt to different specification filters and detect. Preferably, the top of the bushing is provided with a set of positioning holes, and the magnet structure is a set of magnetic pillars 1002, which are arranged in the positioning holes. The lining is convenient to be positioned in the gas hood, and the operation of putting in and taking off is simple and convenient.

And the rotary detection disc is provided with a holding positioning mechanism 8 corresponding to each detection platform and used for adjusting and correcting the position of the filter on the detection platform.

Preferably, the clasping and positioning mechanism 8 comprises a pair of clasps and a driving structure for driving the clasps to clasp tightly; the holding hand comprises a bent holding hand 801 and a straight holding hand 802 which are correspondingly arranged.

The driving structure is arranged at the inner side of the detection platform; the inner ends of the pair of holding hands are respectively arranged on the pair of gears which are meshed with each other, and the driving structure is connected with the gears. The gear associated with the curved gripper is a driving wheel 803 and the gear associated with the straight gripper is a driven wheel 804.

The driving structure is a pushing cylinder 805, and the end part of a piston rod of the pushing cylinder is connected with the driving wheel through a rotating arm. Or the driving structure is a driving motor, and an output shaft of the driving motor is connected with the rotating shaft of the driving wheel. The position of the filter on the detection platform is adjusted through the holding positioning mechanism, so that the filter is arranged at the center of the detection platform.

Preferably, the pull-down structure is arranged below the filter detection platform. The pull-down structure comprises a pull-down cylinder, a hook structure and a driving structure, wherein the hook structure is used for stretching into the filter to be shifted to hook the filter, the driving structure is used for driving the hook structure to be shifted, and the hook structure and the driving structure are both arranged on the pull-down cylinder.

The collude hand of pull-down structure passes filter screw hole after and opens again and colludes inside the filter, colludes hand and filter screw hole screw thread contactless, detects and is difficult for causing the damage to the filter to easy and simple to handle has improved detection efficiency by a wide margin.

The hook structure is a pair of hooks capable of shifting; or a deflectable hook or set of hooks. The hook comprises a bottom plate, a column body arranged on the bottom plate and a hook part arranged at the end part of the column body and extending outwards. The hook parts of the pair of hooks are arranged in opposite directions, so that the stress is balanced, and the pull-down is stable and reliable.

An air cylinder used for introducing air into the filter is arranged between the detection platform and the pull-down air cylinder, an air inlet is formed in the air cylinder, a through hole is formed in the detection platform corresponding to the hook structure, and air is introduced into the detected filter through the through hole in the detection platform.

The driving structure comprises a pushing cylinder, a rotating shaft and a rotating disc, a push rod of the push rod cylinder is connected with the rotating shaft through a rotating arm, one end of the rotating arm is connected with the end part of the push rod through a ball head, the other end of the rotating arm is connected with the lower end of the rotating shaft, the rotating disc is connected with one end of the rotating shaft, and the rotating disc is connected with the lower part of the hook structure through a pin.

The piston rod of pull-down cylinder is hollow structure, and the piston rod passes pull-down cylinder both ends and all stretches out, and the pivot is established in pull-down cylinder's piston rod, and the promotion cylinder passes through the support to be established in pull-down cylinder's below, and the cylinder body of promotion cylinder passes through the axle to be established on the support, and the carousel is established in the piston rod upper end.

The inflator is internally provided with a connecting ring which can move along the axial direction of the inflator, and an air hole for ventilation is arranged between the connecting ring and the inner wall of the inflator.

Piston rod upper end links firmly mutually with the clamping ring, and the bottom of clamping ring is equipped with the circular port, and the rotatable setting in circular port of carousel is equipped with the connecting hole at the center of carousel, the upper end and the connecting hole cooperation of pivot, pivot upper end and connecting hole accessible key spacing connection, or through establishing the plane spacing connection at pivot upper end edge. The rotating shaft can drive the rotating disc to rotate, and the rotating disc and the rotating shaft can move axially along the rotating shaft.

The bottom plate of the lower part of the hook is positioned in the connecting ring, a hook cover plate used for limiting the axial movement of the hook connecting ring of the bottom plate of the hook is arranged in the connecting ring, a hole is formed in the center of the hook cover plate, and a cylinder of the hook penetrates through the hole of the hook cover plate.

The turntable is provided with a waist-shaped hole matched with the pin shaft. Two waist-shaped holes which are arranged on the rotary disc and opposite to the pair of hooks are symmetrically arranged, the bottom plates of the two hooks are arranged side by side, and pin holes matched with the pin shafts are arranged on the bottom plates. The rotation of the turntable drives the two hooks to move in a dislocation way, and the hook parts of the two hooks hook the inside of the filter.

Or the driving structure is a motor arranged in the inflator, the motor is connected with the turntable through a belt, and the turntable rotates to drive the hitching hand to be dislocated.

Wherein,

the hook comprises a bottom plate and a column body arranged on the bottom plate, and the end part of the column body is provided with a hook part extending outwards. The bottom plate is the bar shaped plate, and the side plane cooperation between two bottom plates, the bottom plate is as the support carrier of colluding the hand.

The columns of the pair of hooks are matched through a plane. The rotary disc is connected with the bottom plate of the hook through a pin shaft. Preferably, the turntable is provided with a waist-shaped hole matched with the pin shaft.

Two waist-shaped holes which are arranged on the rotary disc and opposite to the pair of hooks are symmetrically arranged, the bottom plates of the two hooks are arranged side by side, and pin holes matched with the pin shafts are arranged on the bottom plates. The rotation of the turntable drives the two hooks to move in a dislocation way, and the hook parts of the two hooks hook the inside of the filter.

The column body is divided into an upper section and a lower section, and the column body forms a column structure with a large lower part and a small upper part, so that the structure is stable and reliable. The tip of colluding the hand is semi-circular, forms the whole circle when two collude the hand tip and merge together, and the size specification is less when merging together, is convenient for stretch into the operation of filter screw hole.

The top of the hook is provided with a step groove, and a hook part is formed through the step groove. Or the lower part of the column body corresponding to the hook part is a notch. The surface of the column body below the hook part is an arc surface.

The hook hand penetrates through the filter threaded hole and then is opened to hook the interior of the filter, the hook hand is not in contact with the filter threaded hole, and the filter is not easily damaged by detection; and the hook is in a two-half opposite structure, so that the structure strength is high, and the structure is stable and reliable.

During detection, the filter is placed on the detection platform, a threaded hole at the lower end of the filter is aligned with a through hole in the detection platform, the air cover is driven by the downward pressing cylinder to move downwards to cover the filter, and the lower end of the air cover is matched and sealed with the detection platform; the pull-down cylinder works to drive the pair of hooks to move upwards and extend into the filter through the threaded holes of the filter; the pushing cylinder works to drive the rotating shaft to rotate and drive the rotating disc to rotate, the rotating disc drives the pair of hooks to translate and dislocate, and hook parts of the hooks extend out; the pull-down cylinder drives the pair of hooks to move downwards, the hooks of the hooks hook the interior of the filter, the hooks are not in contact with threads of a threaded hole of the filter, and the filter is not easily damaged by detection; air is fed into the filter through the through holes of the air cylinder and the detection platform, and whether leakage exists at the end part of the filter is detected by detecting the change of air pressure in the air hood; the operation is simple and convenient, and the detection efficiency is greatly improved.

The above-mentioned features are merely for describing preferred embodiments of the present invention and may be arbitrarily combined to form a plurality of embodiments of the present invention.

The invention is described above with reference to the accompanying drawings, it is obvious that the specific implementation of the invention is not limited by the above-mentioned manner, and it is within the scope of the invention to adopt various insubstantial modifications of the inventive concept and solution, or to apply the inventive concept and solution directly to other applications without modification.

Claims

1. The utility model provides a filter leakproofness automatic checkout device which characterized in that: including last conveying mechanism and filter leakproofness detection mechanism and lower conveying mechanism, filter leakproofness detection mechanism includes testing platform and establishes the gas cover that can push down in the testing platform top, is equipped with the air cock on the gas cover, corresponds the gas cover and is equipped with the tight structure that can be taut on testing platform with the filter port, the last gas pocket that is used for admitting air in to the filter cavity that is equipped with of testing platform.

2. The automatic filter tightness detecting device according to claim 1, wherein: filter leakproofness detection mechanism includes the base and establishes the rotation detection dish on the base, testing platform is a set of, and a set of testing platform equipartition is on the rotation detection dish.

3. The automatic filter tightness detecting device according to claim 1, wherein: the upper part conveying mechanism comprises an upper part frame, a conveying belt arranged on the upper part frame and an upper part guide rod arranged on the upper part frame and used for guiding the filter of the upper part.

4. The automatic filter tightness detecting device according to claim 1, wherein: the lower conveying mechanism comprises a lower frame, a conveying belt arranged on the lower frame and a lower guide rod arranged on the lower frame and used for guiding the filter of the lower piece.

5. The automatic filter tightness detecting device according to claim 1, wherein: still including detecting the water box, it is linked together with the air cock on the gas hood to detect the water box through the pipeline.

6. The automatic filter tightness detecting device according to claim 1, wherein: still include pressure sensor, pressure sensor corresponds the air cock setting of gas cover.

7. The automatic filter tightness detecting device according to claim 1, wherein: the gas hood is of a cylindrical structure with an opening at the lower end, and an annular sealing ring is arranged on the opening end face of the lower end.

8. The automatic filter tightness detecting device according to claim 1, wherein: and a pressing cylinder is arranged above the detection platform, and the end part of a piston rod of the pressing cylinder is connected with the top of the gas hood.

9. The automatic filter tightness detecting device according to claim 1, wherein: the detection platform is of a disc structure, and the air hole is formed in the center of the disc.

10. The automatic filter tightness detecting device according to claim 1, wherein: still including detecting water box and pressure sensor, the air cock on the air shroud is two, and an air cock links to each other with detecting the water box, and another air cock links to each other with pressure sensor.