CN103487222B - There is the automatic air leak tester of lifting type of servo-actuated lower guide function - Google Patents
There is the automatic air leak tester of lifting type of servo-actuated lower guide function Download PDFInfo
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- CN103487222B CN103487222B CN201310410394.3A CN201310410394A CN103487222B CN 103487222 B CN103487222 B CN 103487222B CN 201310410394 A CN201310410394 A CN 201310410394A CN 103487222 B CN103487222 B CN 103487222B
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Abstract
The present invention relates to a kind of machinery measured workpiece being utilized differential pressure method dry-type leak hunting, this mechanical series is leaking hunting in automatic production line; The appearance profile that this machinery is specially adapted to measured workpiece does not have suitable rule to carry out with the attitude that can reach a stable conveying or transfer work of leaking hunting, and this suitable attitude needs to assist with the location of sealing part special in the automatic air leak tester of whole true lifting type and the guiding of conveying process.Automatic air leak tester comprises housing assembly, driving roller assembly, upper clamp assembly, lifting mechanism assembly, lower clamp assembly, pressurized fluid driven system, guide-localization assembly, front barrier assembly and electric control system, and the automatic air leak tester of the lifting type comprehensively becoming electromechanical integration.The automatic air leak tester of lifting type with servo-actuated lower guide function that the present invention proposes has the form of multiple guide frame, and can adapt to various ways measured workpiece, can meet requirement of automatically leaking hunting, reliability is higher, improves production efficiency, and the cost of air leak tester is lower.
Description
Technical field
The present invention relates to a kind of machinery measured workpiece being utilized differential pressure method dry-type leak hunting, this mechanical series is leaking hunting in automatic production line; The appearance profile that this machinery is specially adapted to measured workpiece does not have suitable rule to carry out with the attitude that can reach a stable conveying or transfer work of leaking hunting, and this suitable attitude needs to assist by the location of sealing part special in the automatic air leak tester of rational lifting type and the guiding of conveying process.
Background technology
In the processing of the metal shell of the engine of the transportation equipments such as automobile, need to leak hunting to housing, if because there is the metal cylinder body of the defects such as sand holes to occur, leakage phenomenon follows up with regard to needs processes, the air leak tester of need of work in automatic production line that leak hunting carries out, it needs to utilize, measured workpiece is delivered to a place by the closed of lower clamp, this place can meet the requirement that required independent cavity or a series of cavity of ganging up carry out omnibearing sealing, gases at high pressure are injected again in this leak free cavity, then differential pressure leak detector is utilized to detect, just complete the judgement of leakage.Adopt dry type differential pressure to leak hunting air leak tester that principle carries out, because test accurately, particularly efficiency is high and be widely used.This detection mode needs measured workpiece in leakage detection clamp, have more accurate stable operating attitude could seal tested cavity smoothly, in like manner, measured workpiece preferably also can keep suitable attitude before being delivered to leakage detection clamp, reduce unnecessary adjustment, so-called attitude just refers to the content of six view directions of the affiliated outline of measured workpiece, even if automatic air leak tester requires should not change attitude after this workpiece moves forward and move up and down new position.
If the left and right sides as the housing appearance profile of measured workpiece has a straight flange respectively, or be called and face directly, this straight flange just can as the guiding key element in conveying, and this straight flange can be made up of at least two salient points or convex surface on workpiece, and straight flange must be parallel with measured workpiece throughput direction.When this measured workpiece enters in the conveying roll of automatic air leak tester, this straight flange is installed fixing outer guide pole by the roller left and right sides and is retrained, measured workpiece just can reach the assigned position entering lower press plate smoothly, the lifting positioning component that recycling lower press plate is installed accurately is located, and just can meet the basic demand of air leak tester.But there are some measured workpieces there is no such condition, appearance profile does not have suitable rule, the left side of such as measured workpiece or right side only retain an outstanding very thin horizontal edge (see in accompanying drawing 3 14), and on the roller-way of conveying pipeline, suddenly left, suddenly right twisting just occurs the axis of measured workpiece.Also has a kind of situation, at the automatic air leak tester of use lifting type, if the straight flange that the left and right sides of the metal shell appearance profile of engine has, or face the higher position being in workpiece directly, and the distance between left and right of the position that workpiece is lower is larger, to carry in measured workpiece lifting process in lower press plate and with the roller left and right sides, fixing outer guide pole will be installed and interfere (measured workpiece 13 enumerated in see accompanying drawing 2), therefore, in large-scale production line, be the guidance mode that can not adopt known " outer laterally positioning component " for this type of measured workpiece.Measured workpiece due to unsuitable like this guiding key element can not complete and leak hunting on automatic air leak tester, and usually need to carry out on manually operated air leak tester, production efficiency is significantly low.
If all there is available straight flange and lead in the left and right sides of installation halfliner place, the inside structure of measured workpiece, or the suitable straight flange of the inner structure of measured workpiece can be utilized to lead, design the requirement that a kind of mechanism can meet the location of sealing part and the guiding of conveying process, thus enabling this special measured workpiece complete the work of leaking hunting the automatic air leak tester of lifting type is high efficiency, this will be the object that people pursue.
In existing disclosed information, we also do not find that there is the message of the automatic air leak tester of lifting type with servo-actuated lower guide function.
Summary of the invention
For above all difficulties, the present invention proposes and solve in-problem technical scheme.
A kind of automatic air leak tester of lifting type with servo-actuated lower guide function, comprise housing assembly, driving roller assembly, upper clamp assembly, lifting mechanism assembly, lower clamp assembly, pressurized fluid driven system, guide-localization assembly, front barrier assembly and electric control system, and the automatic air leak tester of the lifting type comprehensively becoming electromechanical integration, housing assembly comprises frame, upper mainboard, lower mainboard and column, driving roller assembly is arranged on the lower mainboard of housing assembly, upper clamp assembly is located at the top of driving roller assembly, and below the upper mainboard being fixed on housing assembly, lifting mechanism assembly comprises guide rod, linear bearing, the piston cylinder supporting component that at least two long axis are parallel to each other, and lifting mechanism assembly is arranged on the bottom of driving roller assembly, and is fixed on the lower mainboard of housing assembly, lower clamp assembly comprises lower press plate and lifting positioning component, and lower press plate is fixed on the upper end of the guide rod through lower mainboard through hole, lifting positioning component is arranged in lower press plate, pressurized fluid driven system comprises piston cylinder, driven fluid pump, operation valve and pipeline, guide-localization assembly comprises fixed guide-localization assembly and trailing type guide-localization assembly, fixed guide-localization assembly comprises gib block and securing member, the gib block of two fixed guide-localization assemblies is separately positioned on lower press plate rear and front end, and be fixedly mounted on above lower mainboard, trailing type guide-localization assembly comprises guide plate, guide pole, guide pin bushing, flexible spacing pad, telescopic baffle, spring and securing member, the gib block of trailing type guide-localization assembly is clipped in the middle of the gib block of former and later two fixed guide-localization assemblies, and be fixed on the upper end of two guide poles, the top of guide pole is through in guide pin bushing center pit, guide pin bushing is fixedly mounted in lower press plate, the through hole of lower mainboard is passed at the middle part of guide pole, the bottom of guide pole utilizes securing member to fixedly mount flexible spacing pad, spring is provided with between guide pin bushing lower surface and flexible spacing pad upper surface, be provided with telescopic baffle in flexible spacing pad bottom, telescopic baffle is fixedly mounted on lower mainboard, limited when flexible spacing pad contacts with telescopic baffle.
Leaking hunting in production line, measured workpiece enters automatic air leak tester according to certain beat continuously, the automatic air leak tester of this lifting type is that upper clamp assembly is fixed on upper mainboard, measured workpiece is seated in lower press plate, by lifting lower press plate, complete the closed of leakage detection clamp, thus meet sealing and to leak hunting the requirement of cavity, for operation of leaking hunting creates a basic physical condition; The driving roller assembly of air leak tester meets measured workpiece is transported to leakage detection clamp neutralization from leakage detection clamp, measured workpiece is shifted out on the roller-way of the conveying pipeline of outside, be provided with the gib block of fixed guide-localization assembly respectively in lower press plate rear and front end, this gib block is fixedly mounted on above lower mainboard; The gib block of the fixed guide-localization assembly of guide plate and two sections, front and back of trailing type guide-localization assembly joins end to end, if measured workpiece also can be made when not leaking hunting directly to pass through smoothly when roller transmission.Trailing type guide-localization assembly is arranged in lower press plate, can with lower press plate lifting, but when lower press plate is in low level, flexible spacing pad contacts with telescopic baffle, guide plate forces the gib block of projection and fixed guide-localization assembly to integrate with, when lower press plate carries measured workpiece by lifting, guide plate is retracted in the groove of lower press plate under the action of the spring, the pin of the lifting positioning component in lower press plate inserts the pilot hole of measured workpiece and locates more accurately, so far, measured workpiece is accurately located in lower press plate, sealing mechanism in leakage detection clamp just can seal accurately.
The core technology of this technical scheme is exactly trailing type guide-localization assembly.This scheme make use of the design feature of measured workpiece inside, the straight flange of its inner structure is the metal surface machined with facing directly, can engage with guide plate and guide pole all the time when measured workpiece moves, work pieces process face, guide plate and guide pole precision can meet measured workpiece conveying and the requirement sealed completely.The hexagon socket head cap screw of one row's low brass lid vertical is fastened on measured workpiece inside when detecting by the measured workpiece certainly had, and now the cylindrical outer surface of this row's hexagon socket head cap screw is also a plane that can meet location.This scheme is that measured workpiece leaks hunting and indicates a new locator meams, as long as have the factor of the design feature of utilization in measured workpiece inside, can leak hunting on the basis of this programme.
According to the overview embodiment 1 that the application proposes, the guide plate of described trailing type guide-localization assembly is channel-section steel shape, is provided with two stiles about guide plate, and the side of each stile is the field of conjugate action of guiding.This programme is the width that the slit formed because of the cylinder and adjacent side of arranging hex bolts according to one of the measured workpiece described in upper joint only holds guide plate stile.If the centre of two guiding straight flanges that measured workpiece has does not have foreign matter, then guide plate can be designed to square type xsect (measured workpiece see accompanying drawing 2 and 3).
Described housing assembly comprises frame, upper mainboard, lower mainboard and column; Frame is the general frame with frame composition rectangle, and lower mainboard is fixed on above frame, has four columns at least, and the lower end of column is fixed on lower mainboard, and the upper end of column is fixed on mainboard.
Further technical scheme is, described driving roller assembly comprises electric drive reductor, long roller, overhang roll cartridge module, back up pad, bearing, drive sprocket, driven sprocket and chain, two back up pads are fixed on the left and right sides on lower mainboard, each long roller is arranged between two back up pads at a certain distance, and before and after lower press plate both sides, the rotation of each long roller is parallel to each other, and the axle journal at each long roller two ends is installed in the endoporus of the bearing arranged on the supporting plate, and a series of long rollers form the load plane of level, a series of overhang roll cartridge module is arranged between two back up pads at a certain distance, and row's overhang roll cartridge module is equipped with in the lower press plate left and right sides, each overhang roll cartridge module comprises cantilever roller, little bearing, bearing seat, axle sleeve and securing member, the diameter of axle end bar of cantilever roller is arranged in the endoporus of two little bearings, two little bearings are arranged in the endoporus of bearing seat, the diameter of axle of the cantilever roller between two little bearings is set with axle sleeve, bearing seat is fixed in the endoporus of back up pad, and a series of cantilever roller forms the load plane of level, the load plane that long roller forms level overlaps with the load plane that cantilever roller forms level, under electric drive reductor is arranged on lower mainboard, the cantilevered driveshaft of electric drive reductor fixes drive sprocket, drive sprocket is by the driven sprocket transmitting torque of coaxial cable on reel chain and long roller shaft, driven sprocket is duplex chain wheel, driven sprocket is arranged on the axle head of long roller and cantilever roller, electric drive reductor drives the equidirectional rotation of the driven sprocket of long roller by drive sprocket on cantilevered driveshaft and closed reel chain, this long roller takes turns the long roller adjacent with another closed chain-driving and the equidirectional rotation of cantilever roller by other coaxial row chain again, a row chain wheel is all had by a closed chain transmitting torque between driven sprocket on each adjacent long roller and cantilever roller.Known automatic air leak tester has the technical scheme of many motor-driven rollers, in order to better coordinate us to take the technical program with lifting mechanism assembly, lower clamp assembly, guide-localization assembly, front barrier assembly.
Further technical scheme is, described lifting mechanism assembly comprises guide rod, linear bearing and the piston cylinder supporting component that two long axis are parallel to each other, and piston cylinder supporting component comprises pillar and piston cylinder back up pad; Each guide rod plummet is through upper and lower two linear bearings, linear bearing is above fixed in the through hole on lower mainboard, linear bearing is below fixed in the through hole in piston cylinder back up pad, and piston cylinder back up pad is fixed on below lower mainboard by pillar suspended fixing; Under the forward flange of piston cylinder is fixed on piston cylinder back up pad, piston rod is through piston cylinder back up pad through hole, and the upper end of piston rod is connected on flange fixing below lower press plate by floating junction.
Lifting mechanism assembly is the core technology of the automatic air leak tester of lifting type, the automatic air leak tester that this mode has lifting and press mechanism concurrently relative to press mechanism assembly or employing has the simple advantage of structure, because these are all known technologies, do not do too much tired stating at this.
Further technical scheme is, described lifting mechanism assembly is provided with backing plate between lower end of the guide rod portion and piston cylinder back up pad, and the center pit of backing plate is through guide rod, and backing plate is fixed in piston cylinder back up pad; Adjustable cushion cover is provided with in lower end of the guide rod portion, the center pit of cushion cover is through guide rod, adjustable cushion cover is fixed on the screw thread in lower end of the guide rod portion by screw-threaded engagement, also be provided with retainer nut and check washer in the bottom in lower end of the guide rod portion, retainer nut and check washer are fixed on below adjustable cushion cover.
Measured workpiece upper surface be there is no to the accurate face that can locate, or measured workpiece upper surface needs flexibility to exert pressure location for various reasons, or because the error of housing assembly processing assembling needs to compensate, this needs more accurate adjustment and control with regard to needing the stroke of lifting lower press plate; The technical program utilizes adjustable cushion cover to reach this object, in order to prevent adjustable cushion cover from changing, turn increases retainer nut and check washer.Because pressure can not be born, so utilize backing plate to be transferred in piston cylinder back up pad by pressure in axis two sides of linear bearing.
Further technical scheme is, described lifting positioning component comprises tommy and securing member, and tommy utilizes securing member to be arranged in lower press plate, and tommy engages with pilot hole reserved on the measured workpiece being in correct attitude.
Lifting positioning component is for measured workpiece locating more accurately in lower press plate, and this degree of accuracy is higher than the precision of front barrier assembly and guiding.
Further technical scheme is, the guide plate xsect of described trailing type guide-localization assembly is the edge in arc curve cross section, and the edge of this arc section is the field of conjugate action of guiding;
Further technical scheme is, the guide plate xsect of described trailing type guide-localization assembly is the edge in rectangular curve cross section, and the edge of this square-section is the field of conjugate action of guiding.The form of guide plate depends on that measured workpiece can lead the shape of position, and the guide plate xsect that the measured workpiece treating accompanying drawing 2 and 3 just adopts can be arc section or square-section.
Further technical scheme is, the transversal section of the gib block of described fixed guide-localization assembly should be consistent with the transversal section of the guide plate of trailing type guide-localization assembly, and each gib block utilizes web member to be arranged on lower mainboard.Drain the pond to get all the fish
Described front barrier assembly comprises cylinder, guide shaft, guide shaft seat and stopper, under cylinder forward flange is fixed on guide shaft seat, piston rod is with guide shaft coaxial inner conductor and be connected, and the upper end constant resistance block after guide shaft stretches out through guide shaft seat, guide shaft seat flange is fixed on lower mainboard.Front barrier assembly has many schemes, and these are known technologies.Front barrier assembly can stop at above lower press plate accurately for measured workpiece when fore-and-aft direction mobile.
The general using method of the automatic air leak tester of this lifting type is (being described with overview embodiment 2):
When leaking hunting operation, motor drives the long roller-way of driving roller assembly and hanging arm roll to rotate, measured workpiece enters long roller-way load plane by the gib block of right side fixed guide-localization assembly, measured workpiece load plane overlaps with long roller-way load plane, now lower press plate is down to low level, as accompanying drawing 19 shows, the load plane of lower press plate is t lower than the distance of the load plane of hanging arm roll, the distance that the guide plate of trailing type guide-localization assembly upwards stretches out from the load plane of lower press plate is d1, the bump height of the tommy on lower clamp is lower than the load plane of hanging arm roll, measured workpiece enters to depart from immediately the load plane that gib block enters hanging arm roll under the help of the guide plate of trailing type guide-localization assembly, stopper rises by front barrier assembly, measured workpiece contacts with stopper and is stopped, motor stops driving driving roller assembly, pressurized fluid driven system makes lower press plate assembly rise by lifting mechanism assembly, the guide plate of trailing type guide-localization assembly falls under spring force, the distance of upwards stretching out from the load plane of lower press plate when the guide plate of trailing type guide-localization assembly is d2, d2< d1, the tommy of the lifting positioning component in lower press plate pierces in the pilot hole of measured workpiece, in lower press plate, plane overlaps with the load plane of measured workpiece immediately, the load plane of measured workpiece departs from the load plane of cantilever roller, lower press plate assembly carries measured workpiece and trailing type guide-localization assembly is lifted to upper limit stopping, as accompanying drawing 20 shows, now measured workpiece is closed by upper lower clamp, sealing topworks in fixture starts action, the cavity detected is by omnibearing sealing, differential pressure leak detection instrument starts to detect, the sealing topworks detected in rear jig sets back, lower press plate moves down, the guide plate of trailing type guide-localization assembly is at the effect lower convexity of telescopic baffle, measured workpiece is dropped on the load plane of cantilever roller again, lower press plate continues to be reduced to original low level, the pin of lifting positioning component departs from from the pilot hole of measured workpiece, the upper tip of pin is lower than the load plane of cantilever roller, motor drives driving roller assembly to rotate, measured workpiece enters the gib block district of the fixed guide-localization assembly in left side under the effect of cantilever roller and long roller, last measured workpiece is taken out of air leak tester by long roller and is entered next operation.
Circulation like this, performs the task that leaks hunting of primary measured workpiece.
The automatic air leak tester of the lifting type beneficial effect compared with prior art with servo-actuated lower guide function of the present invention is:
The automatic air leak tester of lifting type with servo-actuated lower guide function that the present invention proposes can adapt to various ways measured workpiece, and can meet requirement of automatically leaking hunting, reliability is higher, improves production efficiency, and manufacture and the operating cost of air leak tester are lower.
In the embodiment of principle of work describing this automatic air leak tester, we only have been directed to a kind of measured workpiece, and the technical scheme that have employed three kinds of guiding all can complete the task of automatically leaking hunting; Obviously, can also for many measured workpieces of other kind, this also needs the amendment core feature in this programme being carried out to physical dimension aspect certainly, just can satisfy the demand.
Accompanying drawing explanation
Described front and back in this instructions refer to the front and back along measured workpiece transported substance flow path direction, and described left and right also refers to the left and right in the face of direction forward.
Fig. 1 is that the outward appearance axle with the automatic air leak tester of lifting type of servo-actuated lower guide function used as operation of leaking hunting surveys view, and arrow shown in figure is the flow direction of measured workpiece;
Fig. 2 is the axle survey view that this kind of measured workpiece 13 is transported to operating attitude in automatic air leak tester, arrow shown in figure is the flow direction of measured workpiece, 16a and 16b that face directly of measured workpiece in-profile can be used as the spigot surface slided along the guide-localization assembly guide way field of conjugate action, and measured workpiece load plane 17 engages with roller load plane;
Fig. 3 is the axle survey view that measured workpiece 13 turns over the conveying attitude of turnback, and this figure is in order to better understand the straight line led of measured workpiece inside or face directly.Planarea 15a and 15b of measured workpiece outline can as guide surface, but due to its left and right directions, it is narrow many that its spacing compares bottom, and profile can be interfered with external orientation assembly when lifting, and obviously this technical scheme can not adopt at the automatic air leak tester of lifting type;
The difference of Fig. 4 and Fig. 2, the difference of Fig. 5 and Fig. 3 is all install with hexagon socket head cap screw 20 to secure five semiaxis tiles 19 on measured workpiece 13; In this case measured workpiece is leaked hunting, just can utilize the planarea 20a that the cylinder of row's hexagon socket head cap screw is formed;
Fig. 6 is the front elevation of the automatic air leak tester of Fig. 1; Show in the drawings be placed on roller will the measured workpiece 13 of lifting;
Fig. 7 is that the axle of lower press plate assembly 8 surveys view;
Fig. 8 is that trailing type guide-localization assembly axle surveys view;
Fig. 9 is the B-B cut-open view of Fig. 6;
Figure 10 is that the axle of upper jig plate assembly 6 surveys view; The sealing topworks 6a be arranged on jig plate assembly is shown in this view kind; Upper location-plate 33 plays the effect of restriction measured workpiece, and the seal 35 simultaneously gone up on location-plate 33 is shaped form O-ring seal; The sealing topworks of both sides comprises execution cylinder, sealing push pedal 34, bearing, seal 35 and guide rod, and cylinder makes sealing push pedal 34 compress the sealing surface of measured workpiece; After upper and lower clamp assembly is closed, measured workpiece seals by seal 35;
Figure 11 is that the axle of lifting mechanism assembly 2 surveys view;
Figure 12 is the II trailing type guide-localization component view of amplifying in Fig. 9;
Figure 13 is that the axle of driving roller assembly surveys view;
Figure 14 is the I overhang roll cartridge module view amplified in Fig. 9;
Figure 15 is the isometric cutaway view of the C-C of Fig. 9; Show lifting mechanism assembly, driving roller assembly, the lower press plate assembly longitudinal view together with guide-localization assembling components.
Figure 16 is that the outward appearance axle with the automatic air leak tester of lifting type of servo-actuated lower guide function used as operation of leaking hunting surveys view, arrow shown in figure is the flow direction of measured workpiece, the xsect of the gib block of the fixed guide-localization assembly of the guide-localization assembly of this equipment is the ladder platform of semicircle, the xsect of the guide plate of trailing type guide-localization assembly is also the ladder platform of semicircle, and it is applicable to the measured workpiece that accompanying drawing 2 and 3 shows;
Figure 17 is that trailing type guide-localization assembly axle surveys view, and the xsect of the guide plate 26a of trailing type guide-localization assembly is the ladder platform of semicircle;
Figure 18 is that the trailing type guide-localization assembly axle that Figure 17 shows surveys view, and show after trailing type guide-localization assembly is with the lifting of lower press plate assembly, flexible spacing pad 31 has departed from telescopic baffle 32;
Figure 19 is the cut-open view of Figure 16 equipment front elevation; When this figure shows the position that measured workpiece enters into directly over lower press plate, rest on the state of cantilever roller;
Figure 20 is the cut-open view of the equipment front elevation identical with Figure 19; This figure shows measured workpiece by after lifting, enter into the state of the position that lower press plate assembly and upper jig plate assembly close;
Figure 21 is that trailing type guide-localization assembly axle surveys view, and the xsect of the guide plate 26a of trailing type guide-localization assembly is rectangle; This figure shows after trailing type guide-localization assembly is with the lifting of lower press plate assembly, flexible spacing pad 31 has departed from telescopic baffle 32;
Figure 22 is that fixed guide-localization assembly axle surveys view.
Wherein: 1-frame, 2-lifting mechanism assembly, 3-driving roller assembly, 4-gib block, 4a-semicircle gib block, barrier assembly before 5-, the upper clamp assembly of 6-, 6a-seals topworks, the upper mainboard of 7-, 8-lower clamp assembly, 9-trailing type guide-localization assembly, 10-column, mainboard under 11-, 12-pressurized fluid driven system, 13-measured workpiece, 14-horizontal edge, 15 a-measured workpiece left-external side spigot surfaces, the right outer guide surface of 15b-measured workpiece, 16a-measured workpiece left inside side spigot surface, 16b-measured workpiece Right Inboard spigot surface, 16c-cambered surface, 17-measured workpiece load plane, 18-measured workpiece pilot hole, 19-semiaxis tile, 20-hexagon socket head cap screw, 20a-guiding is faced directly, 21-tommy, 22-lower press plate, 23-shrinkage pool, 24-groove, 25-stile, 26-guide plate, 26a-semicircle guide plate, 26b-rectangle guide plate, 27-securing member, 28-guide pole, 29-guide pin bushing, 30-spring, 31-stretches spacing pad, 32-telescopic baffle, the upper location-plate of 33-, 34-side seal plate, 35-seal, 36-pillar, 37-piston cylinder back up pad, 38-guide rod, the adjustable cushion cover of 39-, 40-retainer nut, 41-check washer, 42-piston cylinder, 43-drag chain, 44-fixed charge method end plate, 45-piston rod, 46-linear bearing, 47-floating junction, the servo-actuated fixed charge method end plate of 48-, 49-flange, the long roller of 50-, 51-driven sprocket, 52-back up pad, the long roller that 53-is adjacent, 54-overhang roll cartridge module, 55-chain, 56-cantilever roller, 57-bearing, 58-electric drive reductor, 59-reel chain, 61-bearing seat, the little bearing of 62-, 63-axle sleeve, 64-backing plate, 65-web member.
Embodiment
Below in conjunction with accompanying drawing, the automatic air leak tester of lifting type with servo-actuated lower guide function of the present invention is further described.
In Fig. 1,4,5,6 to 15, show the overview embodiment 1 of the automatic air leak tester of lifting type with servo-actuated lower guide function.
In Fig. 1,6 and 9, show the one-piece construction of automatic air leak tester, the present embodiment is the scheme for the measured workpiece design shown in Fig. 4 and Fig. 5, and in figure, arrow is the moving direction of measured workpiece.Installed due to this measured workpiece and fixed semiaxis tile with hexagon socket head cap screw, the guiding utilizing the right cylinder outline as two row's hexagon socket head cap screws of annex to form faces the guiding key element as engaging with the director element of guide-localization assembly directly, completes the work of leaking hunting.
A kind of automatic air leak tester of lifting type with servo-actuated lower guide function, comprise housing assembly, driving roller assembly 3, upper clamp assembly 6, lifting mechanism assembly 2, lower clamp assembly 8, pressurized fluid driven system 12, guide-localization assembly, front barrier assembly 5 and electric control system, and the automatic air leak tester of the lifting type comprehensively becoming electromechanical integration, housing assembly comprises frame 1, upper mainboard 7, lower mainboard 11 and column 10, driving roller assembly is arranged on the lower mainboard of housing assembly, upper clamp assembly is located at the top of driving roller assembly, and below the upper mainboard being fixed on housing assembly, lifting mechanism assembly comprises guide rod 2, linear bearing 46, the piston cylinder supporting component that at least two long axis are parallel to each other, and lifting mechanism assembly is arranged on the bottom of driving roller assembly, and is fixed on the lower mainboard of housing assembly, lower clamp assembly comprises lower press plate 22 and lifting positioning component, and lower press plate is fixed on the upper end of the guide rod 38 through lower mainboard through hole, lifting positioning component is arranged in lower press plate, pressurized fluid driven system comprises piston cylinder 42, driven fluid pump, operation valve and pipeline, it is characterized in that, guide-localization assembly comprises fixed guide-localization assembly and trailing type guide-localization assembly 9, fixed guide-localization assembly comprises gib block 4 and securing member, and two fixed guide-localization assemblies are separately positioned on lower press plate rear and front end, and are fixedly mounted on above lower mainboard, trailing type guide-localization assembly comprises guide plate 26, guide pole 28, guide pin bushing 29, flexible spacing pad 31, telescopic baffle 32, spring 30 and securing member 18, the guide plate of trailing type guide-localization assembly is clipped in the middle of the gib block of former and later two fixed guide-localization assemblies, and be fixed on the upper end of two guide poles, the top of guide pole is through in guide pin bushing center pit, guide pin bushing is fixedly mounted in the shrinkage pool 23 in lower press plate, the through hole of lower mainboard is passed at the middle part of guide pole, the bottom of guide pole utilizes securing member to fixedly mount flexible spacing pad 31, spring 30 is provided with between guide pin bushing lower surface and flexible spacing pad upper surface, be provided with telescopic baffle 32 in flexible spacing pad bottom, telescopic baffle is fixedly mounted on lower mainboard 11, limited when flexible spacing pad contacts with telescopic baffle.
Described housing assembly comprises frame 1, upper mainboard 7, lower mainboard 11 and column 10; Frame is the general frame with frame composition rectangle, and lower mainboard is fixed on above frame, has four columns at least, and the lower end of column is fixed on lower mainboard, and the upper end of column is fixed on mainboard.
The concrete structure of driving roller assembly is shown at Figure 13 and 15, described driving roller assembly comprises electric drive reductor 58, long roller 53, overhang roll cartridge module 54, back up pad 52, bearing 57, drive sprocket, driven sprocket 51 and chain, two back up pads are fixed on the left and right sides on lower mainboard, each long roller is arranged between two back up pads at a certain distance, and before and after lower press plate 22 both sides, the rotation of each long roller is parallel to each other, and the axle journal at each long roller two ends is installed in the endoporus of the bearing 57 arranged on the supporting plate, and 6 long rollers form the load plane of level, 10 overhang roll cartridge modules are arranged between two back up pads at a certain distance, and be equipped with 5 overhang roll cartridge modules in the lower press plate left and right sides, each overhang roll cartridge module comprises cantilever roller 56, little bearing 62, bearing seat 61, axle sleeve 63 and securing member, the diameter of axle end bar of cantilever roller is arranged in the endoporus of two little bearings 62, two little bearings are arranged in the endoporus of bearing seat 61, the diameter of axle of the cantilever roller between two little bearings is set with axle sleeve, bearing seat is fixed in the endoporus of back up pad 52, and a series of cantilever roller forms the load plane of level, the load plane that long roller forms level overlaps with the load plane that cantilever roller forms level, electric drive reductor 58 is arranged on lower mainboard 11 times, the cantilevered driveshaft of electric drive reductor fixes drive sprocket, drive sprocket is by driven sprocket 51 transmitting torque of reel chain 59 with coaxial cable on long roller shaft, driven sprocket is duplex chain wheel, driven sprocket is arranged on the axle head of long roller and cantilever roller, electric drive reductor drives the equidirectional rotation of the driven sprocket of long roller by drive sprocket on cantilevered driveshaft and closed reel chain 59, this long roller 50 drives adjacent long roller 53 and the equidirectional rotation of cantilever roller by other coaxial row chain wheel and another chain 55 closed again, a row chain wheel is all had by closed chain 55 transmitting torque between driven sprocket on each adjacent long roller and cantilever roller.
The concrete structure of lifting mechanism assembly is shown at Figure 11 and 15, described lifting mechanism assembly comprises guide rod 38, linear bearing 46 and the piston cylinder supporting component that two long axis are parallel to each other, and piston cylinder supporting component comprises pillar 36, securing member and piston cylinder back up pad 37; Each guide rod plummet is through upper and lower two linear bearings, linear bearing is above fixed in the through hole on lower mainboard, linear bearing is below fixed in the through hole in piston cylinder back up pad, and piston cylinder back up pad is fixed on below lower mainboard by pillar suspended fixing; Under the forward flange of piston cylinder 42 is fixed on piston cylinder back up pad, piston rod 45 is through piston cylinder back up pad through hole, and the upper end of piston rod is connected on lower press plate 22 flange 49 fixing below by floating junction 47.
Described lifting mechanism assembly is provided with backing plate 64 between lower end of the guide rod portion and piston cylinder back up pad, and the center pit of backing plate is through guide rod, and backing plate is fixed in piston cylinder back up pad 37; Adjustable cushion cover 39 is provided with in guide rod 38 bottom, the center pit of cushion cover is through guide rod, adjustable cushion cover is fixed on the screw thread in lower end of the guide rod portion by screw-threaded engagement, also be provided with retainer nut 40 and check washer 41 in the bottom in lower end of the guide rod portion, retainer nut and check washer are fixed on below adjustable cushion cover.
The concrete structure of lifting positioning component is shown at Fig. 7, described lifting positioning component comprises tommy 21 and securing member, tommy utilizes securing member to be arranged in lower press plate 22, and tommy engages with pilot hole 18 reserved on the measured workpiece 13 being in correct attitude.
Show the concrete structure of dependent cable drag chain assembly at Figure 11 and 15, lower clamp assembly comprises dependent cable drag chain assembly; Dependent cable drag chain assembly comprises drag chain 43, servo-actuated fixed charge method end plate 48 and fixed charge method end plate 44, the often joint of drag chain can bend, drag chain one end is fixed on servo-actuated fixed charge method end plate, servo-actuated fixed charge method end plate is connected to the surrounding of lower press plate 22, the other end after drag chain bends is fixed on fixed charge method end plate, and fixed charge method end plate is fixed on lower mainboard 11 times.Arrange when dependent cable drag chain can make the compressed air hose in lower press plate assembly and sensor cable in lifting neat at lower clamp assembly, and reduce cable wearing and tearing.
Show the concrete structure of trailing type guide-localization assembly at Fig. 8 and 15, the guide plate 26 of described trailing type guide-localization assembly is channel-section steel shape, is provided with two stiles 25 about guide plate, and the side of each stile is the field of conjugate action of guiding.
Described lower press plate 22 is provided with groove 24, and the cross-sectional height of groove and width are all greater than the height and the width of guide plate 26 outline.When the object being provided with groove 24 is lower press plate lifting, guide plate 26 can be retracted in groove 24.This programme is because hold the limited height of guide plate stile according to the slit of the measured workpiece described in upper joint, otherwise the upper surface of guide plate stile will hold the slit interference of stile 25 in measured workpiece, in order to the pin meeting lifting positioning component inserts the requirement of the pilot hole of measured workpiece, need to be provided with groove in lower press plate, when lower press plate lifting, guide plate is retracted in the groove of below lower press plate load plane, otherwise the load plane of lower press plate can not overlap with measured workpiece load plane 17, pin cannot insert the pilot hole of measured workpiece, pin can not be completed accurately locate, and there is stile 25 and the measured workpiece collision accident of guide plate 26.
Show the concrete structure of fixed guide-localization assembly at Figure 13 and 15, the gib block 4 of described fixed guide-localization assembly is two, left and right, and each gib block is unequal angle iron shape, and a side of gib block is arranged on lower mainboard 11 as web member.Be provided with through hole in the middle of gib block, long roller passes from this through hole.
In Fig. 2,3,16,17,18,19 and 20, show the overview embodiment 2 with the automatic air leak tester of lifting type of servo-actuated lower guide function as another kind of guide-localization assembly.
The difference of the present embodiment and overview embodiment 1 is:
In Figure 16,17 and 18, show the one-piece construction of automatic air leak tester, the present embodiment is the scheme for the measured workpiece design shown in Fig. 2 and Fig. 3, and in figure, arrow is the moving direction of measured workpiece.Because this measured workpiece has not been installed with hexagon socket head cap screw point of fixity semiaxis tile, the curved guiding surface 16c utilizing the outline of five of measured workpiece bottom halfliners to form, as the guiding key element engaged with the director element of guide-localization assembly, completes the work of leaking hunting.
Only in Figure 17 and 18, be provided with measured workpiece.
The concrete structure of trailing type guide-localization assembly is shown at Figure 17 and 18, the xsect of the guide plate of described trailing type guide-localization assembly is the arc curve cross section of semicircle, the field of conjugate action contacted with measured workpiece cambered surface 16c when the edge of the arc curve section leads plate 26a of semicircle is guiding.In fig. 17, show after trailing type guide-localization assembly is in lower limit with lower press plate assembly, flexible spacing pad 31 contacts with telescopic baffle 32.In figure 18, show after trailing type guide-localization assembly is with the lifting of lower press plate assembly, flexible spacing pad 31 has departed from telescopic baffle 32.
The concrete structure of fixed guide-localization assembly is shown at Figure 16,19 and 20, the xsect of the gib block 4a of described fixed guide-localization assembly is the rank landing shape of semicircle, the field of conjugate action that semi arch contacts with measured workpiece cambered surface 16c when being guiding, gib block utilizes web member to be arranged on lower mainboard 11.
Because guide plate 26a short transverse is thinner, the position of the box semicircle orifice of measured workpiece is comparatively dark, so lower press plate 22 does not arrange groove 24.
The gib block 4a in the front of automatic air leak tester is provided with through hole, to make the stopper block of front barrier assembly stretch out, certainly, the stop mode of barrier assembly also has a lot of form, does not do too much describing at this.The servo-actuated fixed charge method end plate 48 of dependent cable drag chain assembly also suitably moves to the right in addition, avoids the gib block 4a at dependent cable drag chain assembly and rear to bump against.
The stopper of front barrier assembly 5 stretches out from the through hole gib block 4a, and stopper is in the position stopping measured workpiece.
All the other are substantially identical for the present embodiment and overview embodiment 1.
In Fig. 2,3,21 and 22, show the overview embodiment 3 with the automatic air leak tester of lifting type of servo-actuated lower guide function as another kind of guide-localization assembly.
The difference of the present embodiment and overview embodiment 2 is:
The present embodiment is the scheme for the measured workpiece design shown in Fig. 2 and Fig. 3, and what the program utilized the center profile of measured workpiece bottom to form faces 16a, 16b field of conjugate action as the guiding key element with guide-localization assembly directly, completes the work of leaking hunting.The xsect of the guide plate of the trailing type guide-localization assembly described in it is the rectangle guide plate 26b in rectangular curve cross section, with the field of conjugate action faced 16a, 16b directly and contact when the both sides of the square-section of rectangle guide plate 26b are guiding.
The shape of cross section of the gib block of described fixed guide-localization assembly is that rectangle (does not show in the accompanying drawings, can understand with reference to Figure 16, the field of conjugate action that the both sides of rectangle gib block 4b contact with measured workpiece cambered surface 16a, 16b when being guiding, this gib block utilizes web member 65 to be arranged on lower mainboard 11.
All the other are substantially identical for the present embodiment and overview embodiment 2.
Obviously, the relevant technologies feature in various embodiment can reasonably exchange and omit within the scope of rights protection.
Claims (10)
1. one kind has the automatic air leak tester of lifting type of servo-actuated lower guide function, comprise housing assembly, driving roller assembly (3), upper clamp assembly (6), lifting mechanism assembly (2), lower clamp assembly (8), pressurized fluid driven system (12), guide-localization assembly, front barrier assembly (5) and electric control system, and the automatic air leak tester of the lifting type comprehensively becoming electromechanical integration, housing assembly comprises frame (1), upper mainboard (7), lower mainboard (11) and column (10), driving roller assembly is arranged on the lower mainboard of housing assembly, upper clamp assembly is located at the top of driving roller assembly, and below the upper mainboard being fixed on housing assembly, lifting mechanism assembly comprises guide rod (38), linear bearing (46), the piston cylinder supporting component that at least two long axis are parallel to each other, and lifting mechanism assembly is arranged on the bottom of driving roller assembly, and is fixed on the lower mainboard of housing assembly, lower clamp assembly comprises lower press plate (22) and lifting positioning component, and lower press plate is fixed on the upper end of the guide rod (38) through lower mainboard through hole, lifting positioning component is arranged in lower press plate, pressurized fluid driven system comprises piston cylinder (42), driven fluid pump, operation valve and pipeline, it is characterized in that, guide-localization assembly comprises fixed guide-localization assembly and trailing type guide-localization assembly (9), fixed guide-localization assembly comprises gib block (4) and securing member, and two fixed guide-localization assemblies are separately positioned on lower press plate rear and front end, and are fixedly mounted on above lower mainboard, trailing type guide-localization assembly comprises guide plate (26), guide pole (28), guide pin bushing (29), flexible spacing pad (31), telescopic baffle (32), spring (30) and securing member (27), the guide plate of trailing type guide-localization assembly is clipped in the middle of the gib block of former and later two fixed guide-localization assemblies, and be fixed on the upper end of two guide poles, the top of guide pole is through in guide pin bushing center pit, guide pin bushing is fixedly mounted in lower press plate, the through hole of lower mainboard is passed at the middle part of guide pole, the bottom of guide pole utilizes securing member to fixedly mount flexible spacing pad, spring is provided with between guide pin bushing lower surface and flexible spacing pad upper surface, be provided with telescopic baffle in flexible spacing pad bottom, telescopic baffle is fixedly mounted on lower mainboard, limited when flexible spacing pad contacts with telescopic baffle.
2. the automatic air leak tester of lifting type with servo-actuated lower guide function according to claim 1, is characterized in that, described housing assembly comprises frame (1), upper mainboard (7), lower mainboard (11) and column (10); Frame is the general frame with frame composition rectangle, and lower mainboard is fixed on above frame, has four columns at least, and the lower end of column is fixed on lower mainboard, and the upper end of column is fixed on mainboard.
3. the automatic air leak tester of lifting type with servo-actuated lower guide function according to claim 1, it is characterized in that, described driving roller assembly comprises electric drive reductor (58), long roller (53), overhang roll cartridge module (54), back up pad (52), bearing (57), drive sprocket, driven sprocket (51) and chain, two back up pads are fixed on the left and right sides on lower mainboard, each long roller is arranged between two back up pads at a certain distance, and in both sides, lower press plate (22) front and back, the rotation of each long roller is parallel to each other, and the axle journal at each long roller two ends is installed in the endoporus of the bearing (57) arranged on the supporting plate, and a series of long rollers form the load plane of level, a series of overhang roll cartridge module is arranged between two back up pads at a certain distance, and row's overhang roll cartridge module is equipped with in the lower press plate left and right sides, each overhang roll cartridge module comprises cantilever roller (56), little bearing (62), bearing seat (61), axle sleeve (63) and securing member, the diameter of axle end bar of cantilever roller is arranged in the endoporus of two little bearings (62), two little bearings are arranged in the endoporus of bearing seat (61), the diameter of axle of the cantilever roller between two little bearings is set with axle sleeve, bearing seat is fixed in the endoporus of back up pad (52), a series of cantilever roller forms the load plane of level, the load plane that long roller forms level overlaps with the load plane that cantilever roller forms level, under electric drive reductor (58) is arranged on lower mainboard, the cantilevered driveshaft of electric drive reductor fixes drive sprocket, drive sprocket is by driven sprocket (51) transmitting torque of reel chain (59) with coaxial cable on long roller shaft, driven sprocket is duplex chain wheel, driven sprocket is arranged on the axle head of long roller and cantilever roller, electric drive reductor drives the equidirectional rotation of the driven sprocket of long roller by drive sprocket on cantilevered driveshaft and closed reel chain (59), this long roller drives adjacent long roller and the equidirectional rotation of cantilever roller by other coaxial row chain wheel and another chain (55) closed again, a row chain wheel is all had by closed chain (55) transmitting torque between driven sprocket on each adjacent long roller and cantilever roller.
4. the automatic air leak tester of lifting type with servo-actuated lower guide function according to claim 1, it is characterized in that, described lifting mechanism assembly comprises guide rod (38), linear bearing (46) and the piston cylinder supporting component that two long axis are parallel to each other, and piston cylinder supporting component comprises pillar (36), securing member and piston cylinder back up pad (37); Each guide rod plummet is through upper and lower two linear bearings, linear bearing is above fixed in the through hole on lower mainboard, linear bearing is below fixed in the through hole in piston cylinder back up pad, and piston cylinder back up pad is fixed on below lower mainboard by pillar suspended fixing; Under the forward flange of piston cylinder (42) is fixed on piston cylinder back up pad, piston rod (45) is through piston cylinder back up pad through hole, and the upper end of piston rod is connected on lower press plate (22) flange (49) fixing below by floating junction (47).
5. the automatic air leak tester of lifting type with servo-actuated lower guide function according to claim 4, it is characterized in that, described lifting mechanism assembly is provided with backing plate (64) between lower end of the guide rod portion and piston cylinder back up pad, the center pit of backing plate is through guide rod, and backing plate is fixed in piston cylinder back up pad (37); Adjustable cushion cover (39) is provided with in guide rod (38) bottom, the center pit of cushion cover is through guide rod, adjustable cushion cover is fixed on the screw thread in lower end of the guide rod portion by screw-threaded engagement, also be provided with retainer nut (40) and check washer (41) in the bottom in lower end of the guide rod portion, retainer nut and check washer are fixed on below adjustable cushion cover.
6. the automatic air leak tester of lifting type with servo-actuated lower guide function according to claim 1, it is characterized in that, described lifting positioning component comprises tommy (21) and securing member, tommy utilizes securing member to be arranged in lower press plate (22), and tommy engages with the upper reserved pilot hole (18) of the measured workpiece (13) being in correct attitude.
7. the automatic air leak tester of lifting type with servo-actuated lower guide function according to claim 1, it is characterized in that, the xsect of the guide plate (26) of described trailing type guide-localization assembly is channel-section steel shape, be provided with two stiles (25) about guide plate, the side of each stile is the field of conjugate action of guiding.
8. the automatic air leak tester of lifting type with servo-actuated lower guide function according to claim 1, it is characterized in that, guide plate (26) xsect of described trailing type guide-localization assembly is arc curve cross section, the field of conjugate action when edge in this arc curve cross section is guiding; Or the guide plate xsect of described trailing type guide-localization assembly is rectangular curve cross section, the field of conjugate action when edge of this square-section is guiding.
9. the automatic air leak tester of lifting type with servo-actuated lower guide function according to claim 1, it is characterized in that, the transversal section of the gib block (4) of described fixed guide-localization assembly should be consistent with the transversal section of the guide plate of trailing type guide-localization assembly, and each gib block utilizes web member to be arranged on lower mainboard (11).
10. the automatic air leak tester of lifting type with servo-actuated lower guide function according to claim 1, it is characterized in that, lower clamp assembly comprises dependent cable drag chain assembly; Dependent cable drag chain assembly comprises drag chain (43), servo-actuated fixed charge method end plate (48) and fixed charge method end plate (44), the often joint of drag chain can bend, drag chain one end is fixed on servo-actuated fixed charge method end plate, servo-actuated fixed charge method end plate is connected to the surrounding of lower press plate (22), the other end after drag chain bends is fixed on fixed charge method end plate, under fixed charge method end plate is fixed on lower mainboard (11).
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| CN201310410394.3A CN103487222B (en) | 2013-09-11 | 2013-09-11 | There is the automatic air leak tester of lifting type of servo-actuated lower guide function |
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| CN201310410394.3A CN103487222B (en) | 2013-09-11 | 2013-09-11 | There is the automatic air leak tester of lifting type of servo-actuated lower guide function |
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| CN103487222B true CN103487222B (en) | 2015-09-02 |
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| CN106153273A (en) * | 2015-04-03 | 2016-11-23 | 安徽省青阳县华瑞科技有限公司 | A kind of chain wheel cover leakage testing device |
| CN106153268B (en) * | 2016-08-24 | 2018-06-15 | 江苏杰士德精密工业有限公司 | Wrist-watch air tightness detection equipment |
| CN106404293A (en) * | 2016-10-17 | 2017-02-15 | 大连现代辅机开发制造有限公司 | Crankcase leakage test sealing method and sealing device |
| CN108680312B (en) * | 2018-08-02 | 2024-01-26 | 重庆攀升机械制造有限公司 | Detection mechanism for automatically detecting product air tightness on production line and application of detection mechanism |
| CN109799039B (en) * | 2019-03-11 | 2022-05-17 | 重庆坤恩机电技术有限公司 | Automatic leak detection machine for engine cylinder |
| CN110466949A (en) * | 2019-09-20 | 2019-11-19 | 江苏剑桥涂装工程股份有限公司 | A kind of upper and lower pieces auxiliary device of large scale special-shaped workpiece |
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