CN102865980B - Automatic light leakage degree and closed gap detector of three-station piston ring and calibrating block thereof - Google Patents

Abstract

The invention relates to an automatic light leakage degree and closed gap detector of a three-station piston ring and a calibrating block thereof. A horizontal workbench is formed at the top of a stand, and is provided with a cantilever beam, a touch screen connected to the cantilever beam, a storage mechanism for storing the piston ring, a push plate positioned below the storage mechanism and a round turntable which is arranged in front of the storage mechanism and the push plate and rotatably inlayed on the horizontal workbench; a separation mechanism is arranged in front of the round turntable; a closed gap detection station, a discharge station and a light leakage degree detection station are formed on the round turntable by three inlayed standard gauges; a first charge coupled device (CCD) sensor corresponding to the closed gap detection station and a second CCD sensor corresponding to the light leakage degree detection station are respectively arranged above the horizontal workbench; and a light leakage degree detection illumination mechanism is arranged at the position below the horizontal workbench, corresponding to the light leakage degree detection station. By adopting the detector and the calibrating block, high efficiency, and the automatic detection and the separation of two indexes of the light leakage degree and the closed gap of small and medium sized piston rings are realized.

Description

Three station piston ring light leak degree and end-gaps automatic tester and calibrating block thereof

Technical field

The present invention relates to a kind of piston ring automatic detection device.Particularly relate to a kind of three station piston ring light leak degree for the middle-size and small-size piston ring finished product detection of automobile (or motorcycle) engine and end-gaps automatic tester and calibrating block thereof.

Background technology

The light leak degree of piston ring refers to the ring standard gauge of tested piston ring press-in cylinder base diameter, both observations in conjunction with situation, to may exist along its contact circumference, the statistical information in the gap that allows certain strength light beam to pass through.Light leak degree is actually the bubble-tight presentation that piston ring is operationally combined with piston, cylinder wall, because being easy to detect, usually using light leak degree information as one of index weighing piston ring quality.After namely the end-gaps of piston ring is pressed into the ring standard gauge of cylinder base diameter, the size in gap, piston ring in sealed place.As shown in Figure 1, piston ring 54 is placed in ring standard gauge 22, checks the size of piston ring 54 end-gaps 51 and light leak light slit 90.

Piston ring is as one of the key components and parts of engine, and its light leak degree and end-gaps directly affect work efficiency and the exhaust emissions quality of overall engine.National standard has strict regulation to these two parameters, requires to carry out checking piece by piece to piston ring before dispatching from the factory, and rejects unacceptable product.And piston ring is typical products in mass production, the market demand is very big, and this proposes very high requirement to the efficiency detected.But limit by technical conditions, the domestic still manual method that adopts detects more at present.As shown in Figure 2, piston 54 ring is placed in the ring standard gauge 22 of cylinder base diameter, with light source 91 irradiate from bottom to top piston ring 54 outer wall and ring gauge 22 in conjunction with circumference, manual rotation ring gauge 22, with the naked eye 92 observes the light leak of piston ring end gap clearance and whole circumference and estimates total light leak arc length and distribution situation.Manual detection must introduce the subjective factor of tester, and cause the inaccurate of testing result, detection efficiency is low, and long-term work can cause damage to workman's eyesight.

" light-leakage testing apparatus for piston ring of internal-combustion engine " (application number: CN88219395) that Mechanical Research and Design Inst., Jiangsu Prov Chen Ting in 1988 designs entirely, alleviates the working strength of manual detection piston ring light leak degree to a certain extent.Along piston ring and ring gauge in conjunction with even circumferential array 72 luminescent devices as static contact, with photoelectric sensor as moving contact detection light leak degree, its resolving power is only 5 °, cannot differentiate for trickle light slit and point-like light leak.Need in this invention in addition manually piston ring to be pressed into ring gauge, still can not break away from the dependence to people, the high and efficiency of job costs is restricted.

" piston ring quality of internal combustion engine detects and automatic sorting device automatically " (application number: CN93238721.7) that Sichuan Province's Fuling City in 1994 (Fuling District, existing Chongqing City) extra large mound internal combustion engine part head factory motorcycle subsidiary factory Zhang Tongyu designs, be a set of can with the device of machine testing piston ring light leak degree and end-gaps two indexs.Mentioning in this invention and detect light leak degree by optical CCD, is a kind of conception courageously at that time.Layout of its conception is turning to by catoptron, allow CCD camera distance ring gauge certain once take at a distance piston ring and ring gauge in conjunction with situation.But the position of catoptron and the existence of center pole all show in its structural drawing, this structure cannot disposable acquisition piston ring circle complete information.In addition, because piston ring light leak gap is very faint, if CCD is not in directly over the light slit of local, defy capture light leak information.Existing manual detection also demonstrates this point.

" piston ring automatic tester " (the appearance patent application number: CN200830206848) jointly developed by University Of Tianjin and CSR Qishuyan Locomotive & Rolling Stock Technology Research Institute for 2008, be an automatic detection system being applied to diesel locomotive engine large scale piston ring, light leak degree and end-gaps two indexs can be detected simultaneously.Because Diesel Locomotive Piston ring size is comparatively large, light leak gap is also large, and circumferential resolution is less demanding, and its light leak information is gathered by high sensitivity photodiode, as shown in Figure 3, wherein 93 is sensors, and 54 is piston rings, 22 is ring gauges, and 94 is extender lenses, and 91 is light sources.For the middle-size and small-size piston ring of micro gap, then not competent.

In addition also have the piston ring detecting instrument of some institutes design, or principle existing defects can not meet accuracy, the repeatability of detection, or cannot Aulomatizeted Detect be realized, or not be suitable for the high middle-size and small-size piston ring of accuracy requirement.In addition, design in the past adopts the method that single station, ring gauge rotate and sensor is fixing, and detection efficiency receives and limits significantly.

Summary of the invention

Technical matters to be solved by this invention is; there is provided a kind of actual for measurand; being integrated with and guaranteeing piston ring---the conforming end face of ring gauge bonding state is counter pushes away location technology; self-adaptation end face coating technique; piston ring end gap clearance earnest is apart from imaging measurement technology; earnest is apart from imaging calibration technique; light leak degree ccd sensor normal incidence weak light detection technique; vision-based detection is without blind spot scanning technique, and ring gauge is static, three station piston ring light leak degree of ccd sensor and shadow shield synchronous rotary technology and end-gaps automatic tester and calibrating block thereof.

The technical solution adopted in the present invention is: a kind of three station piston ring light leak degree and end-gaps automatic tester and calibrating block thereof.Three station piston ring light leak degree and end-gaps automatic testers, include frame, the top planes of described frame forms horizontal table, be respectively arranged with above described horizontal table: semi-girder, connect touch-screen on a cantilever beam, for storing the material storage mechanism of piston ring, be positioned at below material storage mechanism for promoting the scraping wings of material storage mechanism undermost a slice piston ring horizontal forward side's detecting unit movement, described scraping wings is by the pusher air cylinder driven be arranged on below horizontal table, be arranged at the round turntable of the front detecting unit of material storage mechanism and scraping wings, described round turntable be driven by round turntable driving mechanism be rotatably embedded on horizontal table, described round turntable upper, upper respectively with described horizontal table of lower surface, lower surface at grade, the front of described round turntable is provided with the sorting mechanism that the piston ring after to detection carries out sorting, along the circumferential direction equally spacedly on described round turntable be embedded with three ring standard gauges, each ring standard gauge is a station, and the station of formation three movements is transferred in the dextrorotation of oblong rotating disk, wherein rotate the end-gaps being configured for detecting piston ring end gap clearance to a ring standard gauge corresponding with described scraping wings and detect station, at this moment another corresponding with described sorting mechanism ring standard gauge is configured for piston ring to unload the unloading station shifted out from round turntable, and remainder ring standard gauge is configured for the leakage photometric detection station detecting piston ring light leak degree, what the moving direction of described scraping wings and end-gaps detected the center of station and unloading station is centrally located on same straight line, the top of described horizontal table is respectively arranged with the first mounting platform and the second mounting platform, the first described mounting platform is provided with and detects corresponding the first ccd sensor for absorbing piston ring end gap clearance information of station with end-gaps, the second described mounting platform is provided with and drives the rotary drive mechanism that for second ccd sensor that absorb piston ring light leak degree information rotate corresponding with leaking photometric detection station, below horizontal table, the corresponding photometric detection station that leaks is provided with the leakage photometric detection lighting mechanism be arranged on the 3rd mounting platform and the 4th mounting platform.

The described material storage mechanism for storing piston ring, include the back up pad above the scraping wings that is arranged on horizontal table, the front portion of described back up pad is formed with arc shaped opening, described arc shaped opening is corresponding with the front end of described scraping wings, the front portion V-arrangement be formed for holding a slice piston ring of described scraping wings gets stuck groove, the get stuck height of groove of described V-arrangement is less than or equal to the height of a piston ring, the get stuck knuckle place of groove of described V-arrangement is provided with the spacer of remaining silent in direction of remaining silent for guide piston ring, described back up pad is respectively arranged with: along back up pad horizontal central line arrange can before, rear mobile the first regulating part regulated, lay respectively at the second regulating part and the 3rd regulating part of the rotatable adjustment of the first described regulating part both sides, the front end of the first described regulating part is provided with and can goes up, the lower mobile triangular prism regulated, the front end of the second described regulating part and the 3rd regulating part respectively correspondence is provided with and can goes up, the first gear stock column of lower mobile adjustment and second gear stock column, described triangular prism, the surface level that first gear stock column and second gear stock column line are formed is isosceles triangle plane.

Described round turntable driving mechanism includes and is fixed on round turntable driving sleeve on the 3rd mounting platform and corresponding with round turntable center, be arranged on the round turntable transmission shaft that in round turntable driving sleeve and upper end is fixedly connected with the center of round turntable, be fixedly connected on the toothed disc of round turntable transmission shaft lower end, the first servomotor be meshed with described toothed disc, the first described servomotor is fixedly installed on the 3rd mounting platform, on described round turntable, adjacent periphery is also evenly provided with three the rotating disk pilot holes corresponding with three ring standard gauges be embedded in round turntable, the below of described horizontal table be provided be fixed on the 3rd mounting platform for correcting the round turntable detent mechanism with positioning round turntable rotation angle, described round turntable detent mechanism includes the register pin cylinder be fixed on the 3rd mounting platform, be connected to the driving stem top of register pin cylinder for being inserted into the turntable locating pin in rotating disk pilot hole, described turntable locating pin is along on the through hole in the register pin orienting lug be fixed on below horizontal table, lower movement.

The top described horizontal table being positioned at end-gaps detection station and unloading station is provided with material guide structure, described material guide structure is symmetrical the first stock guide being arranged on end-gaps detection station and unloading station both sides and the second stock guide, the first described stock guide inner edge corresponding with the second stock guide is to formation slope, both sides centered by the middle part on this limit, namely the external diameter under being greater than piston ring free state in material storage mechanism side and the distance between sorting mechanism side first stock guide and the second stock guide two inner edge, be positioned at end-gaps detection station place, distance between the first described stock guide and the second stock guide two inner edge is less than the large end internal diameter of ring standard gauge, and be greater than piston ring be fully pressed state under external diameter, be positioned at unloading station place, distance between the first described stock guide and the second stock guide two inner edge is greater than the large end internal diameter of ring standard gauge and the external diameter under being less than piston ring free state.

The detent mechanism for carrying out end face location to tested piston ring that on station, corresponding being provided with is positioned at the feeding pressure mechanism directly over the ring standard gauge being embedded in round turntable and is positioned at immediately below this ring standard gauge is detected at described end-gaps, described feeding pressure mechanism includes the binder cylinder driven by control module be arranged on above the second mounting platform, the binder driving stem of binder cylinder runs through the second mounting platform successively, the linear bearing rearward end be arranged on the first mounting platform connects binder disk, the diameter of described binder disk is less than the internal diameter of ring standard gauge and the internal diameter under being greater than the compacted state of piston ring, described binder disk is formed with the first printing opacity mouth with the camera lens corresponding section of the first described ccd sensor, described detent mechanism includes the end face positioning disc below the ring standard gauge being arranged in end-gaps detection station, be connected to the first oscillating bearing of end face positioning disc lower surface, the first described oscillating bearing is connected with the second electromagnet driven by control module be arranged on the 3rd mounting platform by a connecting link, on described connecting link, cover has spring, correspondingly with the first printing opacity mouth on described binder disk on described end face positioning disc be formed with the second printing opacity mouth, the flat-plate light source corresponding with the first printing opacity mouth and the second printing opacity mouth is also provided with below described end face positioning disc, described binder cylinder, binder disk, ring standard gauge, end face positioning disc, the center of the first oscillating bearing and the second electromagnet on the same axis.

The rotary drive mechanism that described driving second ccd sensor rotates includes: be fixed on the second mounting platform, main transmission axle sleeve on horizontal table and the 4th mounting platform, be arranged on the final drive shaft in main transmission axle sleeve, be fixedly connected on the 4th gear of final drive shaft lower end, the driven wheel be meshed with the 4th described gear, be fixedly connected on the first gear of final drive shaft upper end, the second gear be meshed with the first described gear, the 3rd gear be meshed with the second described gear, the second described gear is arranged on the second mounting platform by coder connecting shaft and bearing, the upper end of described coder connecting shaft connects scrambler, described scrambler is fixed on the second mounting platform by support, the 3rd described gear is arranged on the second mounting platform by hollow drive shaft and bearing, the upper end of described hollow drive shaft is corresponding with the rotor of rotary connector to be arranged, described rotary connector is fixed on the second mounting platform by support, the lower end of hollow drive shaft is positioned at the below of the second mounting platform and is fixedly connected with the center rotating fixed head, the lower surface of described rotation fixed head is fixedly installed the second ccd sensor.

Described leakage photometric detection lighting mechanism includes and the 4th gear, the 5th gear be meshed, the 6th gear be meshed with the 5th gear, the 4th described gear is meshed with driven wheel, the 5th described gear is arranged on the 4th mounting platform by coupling shaft and bearing, the 6th described gear is arranged on the 4th mounting platform by the axle sleeve of shadow shield transmission shaft and bearing, the lower end of described shadow shield transmission shaft run through the 3rd mounting platform and be fixedly connected with to drive under electromagnet effect shadow shield transmission shaft in axle sleeve on, the leverage of lower movement, the upper end of described shadow shield transmission shaft is fixedly connected with the center of shadow shield by second joint bearing, the edge of described shadow shield has a sector open, the base of described sector open and the inward flange of the ring standard gauge leaked on photometric detection station are formed with the gap that radial width is less than tested piston ring radial width, the camera lens of described sector open present position and the second described ccd sensor is on same perpendicular line, described second joint bearing or shadow shield transmission shaft overcoat have the annular light source be fixedly installed on horizontal table.

Described unloading station is provided with the discharging cylinder be fixedly mounted on the 3rd mounting platform, the driving stem of described discharging cylinder runs through the 3rd mounting platform top and is fixedly connected with discharging disk by web member, described discharging disk is corresponding with ring standard gauge on unloading station, and the driving stem of described discharging cylinder, the center of discharging disk and ring standard gauge on the same line, the diameter of described discharging disk is less than the internal diameter of ring standard gauge and the internal diameter under being greater than the compacted state of piston ring, horizontal table is provided with unloading mechanism between unloading station and sorting mechanism, described unloading mechanism comprises: be arranged on the material returned cylinder driven by control module on the first stock guide or the second stock guide, the drive division of described material returned cylinder connects one end of T-bar transverse bar, the other end connection of described T-bar transverse bar is arranged on the unloading mechanism guide rail on the second described stock guide or the first stock guide, T-bar longitudinal rod is provided with material returned ratchet support, the outside of described material returned ratchet support is hinged with the material returned ratchet for tested piston ring to be delivered to sorting mechanism from unloading station.

Described sorting mechanism includes the gas cylinder erecting frame be arranged on horizontal table, three gas cylinders of triangular pitch are fixedly installed below described gas cylinder erecting frame, each gas cylinder lower port is provided with sorting valve, and three sorting valves correspond respectively to for receiving the material-receiving device that is qualified, underproof and recoverable piston ring after sorting.

A kind of Lithographic template calibrating block for three station piston ring light leak degree and end-gaps automatic tester, include rectangular patch and two ends are formed with the calibrating block bracing frame of printing opacity mouth, Lithographic template fixture block below calibrating block bracing frame and Lithographic template intermediate plate is connected in turn by screw, described Lithographic template fixture block and Lithographic template intermediate plate are also formed with light openings in the printing opacity mouth corresponding section with calibrating block bracing frame, the Lithographic template with standard light slit is accompanied between described Lithographic template fixture block and Lithographic template intermediate plate, standard light slit on Lithographic template respectively with Lithographic template fixture block, printing opacity mouth axis on Lithographic template intermediate plate and calibrating block bracing frame is corresponding, at timing signal, described calibrating block bracing frame is positioned at the upper surface that end-gaps detects the ring standard gauge on station, described Lithographic template fixture block is embedded in described ring standard gauge, the standard light slit of described Lithographic template, light openings is corresponding with the camera lens of the first ccd sensor with printing opacity mouth.

Three station piston ring light leak degree of the present invention and end-gaps automatic tester and calibrating block thereof, in line with efficient, accurate detection and control principle, under the mechanical action and steering logic support of stable smoothness, rely on the integrated with the complexity of existing technology of multinomial originality, adopt the global design scheme based on three station synchronous workings of time parallel, improve the work efficiency of complete machine, achieve the high-level efficiency of centering small-sized piston ring light leak degree and end-gaps two indexs, fully-automated synthesis and sorting.Accuracy of detection is better than relevant national standard, has good repeatability.Complete machine runs has high reliability and stronger adaptive faculty, and maintenance and replacing detection specification etc. are easy to operate, can long-time stable running under industry spot complex environment.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of piston ring light leak light slit and end-gaps detected parameters;

Fig. 2 is the schematic diagram adopting manual method to detect piston ring light leak degree and end-gaps;

Fig. 3 is the principle schematic of prior art piston ring automatic tester;

Fig. 4 is external structure schematic diagram of the present invention;

Fig. 5 is top of the present invention one-piece construction schematic diagram;

Fig. 6 is horizontal table superstructure schematic diagram of the present invention;

Fig. 7 is horizontal table substructure schematic diagram of the present invention;

Fig. 8 is that end-gaps of the present invention detects station structure schematic diagram;

Fig. 9 is stock guide structural representation of the present invention;

Figure 10 is the structural representation that end-gaps of the present invention detects the end face location of station;

Wherein, (a) is that holding pad treats binder view; B () is that holding pad binder puts in place view; C () is return state schematic diagram after holding pad binder;

Figure 11 is the structural representation of Lithographic template calibrating block of the present invention

Wherein, (a) is vertical view; B () is the A-A cut-away view of (a); C () is perspective view;

Figure 12 is the schematic diagram that end-gaps detects that station demarcates state;

Figure 13 is the structural representation that the rotating mechanism of photometric detection station is leaked in the present invention;

Figure 14 is the structural representation of shadow shield of the present invention

Wherein, (a) is vertical view; B () is the A-A cut-away view of (a);

Figure 15 is the structural representation of unloading station of the present invention.

In figure

1. semi-girder 14. rotary connector 27. end-gaps detects station

2. touch-screen 15. scrambler 28. discharging disk

3. hood 16. second ccd sensor 29. turntable locating pin

4. unloading mechanism 17. round turntable 30. material returned ratchet

5. frame 18. sorting mechanism 31. gas cylinder

6. electric cabinet faceplate 19. first mounting platform 32. sorting valve

7. horizontal table 20. rotating disk pilot hole 33. register pin cylinder

8. storing pusher 21. leaks photometric detection station 34. first electromagnet

9. scraping wings 22. ring standard gauge 35. discharging cylinder

10. triangular prism 23. first stock guide 36. toothed disc

11. first gear stock column 24. unloading station 37. first servomotors

12. second gear stock column 25. second stock guide 38. second electromagnet

13. second mounting platform 26. material returned cylinder 39. the 3rd mounting platforms

40. end face positioning discs 61. rotate fixed head 82. round turntable transmission shaft

41. pusher cylinder 62. the 3rd gear 83. register pin orienting lugs

42. first ccd sensor 63. hollow drive shaft 84. main transmission axle sleeves

43. binder cylinder 64. second gear 85. coder connecting shafts

44. binder disk 65. first gear 86. the 4th mounting platforms

45. first oscillating bearing 66. final drive shaft 87. leverages

46. spring 67. driven wheel 88. second joint bearings

47. leverages 68. the 4th gear 89. sector open

48. flat-plate light sources 69. the 5th gear 90. light leak light slit

49. first regulating part 70. the 6th gear 91. light sources

50. second regulating part 71. annular light source 92. naked eyes

51. piston ring end gap clearance 72. shadow shield 93. sensors

52. the 3rd regulating part 73. unloading mechanism guide rail 94. extender lenses

53. remain silent spacer 74. ring gauge fastening bolt 95. gas cylinder erecting frame

54. piston ring 75. shadow shield transmission shaft 96. T-bar transverse bars

55.V shape gets stuck groove 76. back up pad 97. T-bar longitudinal rod

56. calibrating block support chip 77. binder driving stem 98. material returned ratchet supports

57. Lithographic template fixture block 78. linear bearings 99. hold internal diameter greatly

58. Lithographic template intermediate plate 79. first printing opacity mouth 100. internal diameters

59. Lithographic template 80. second printing opacity mouths

60. Lithographic template calibrating block 81. round turntable driving sleeves

Embodiment

Below in conjunction with embodiment and accompanying drawing, three station piston ring light leak degree of the present invention and end-gaps automatic tester and calibrating block thereof are described in detail.

Three station piston ring light leak degree of the present invention and end-gaps automatic tester and calibrating block thereof, actual for measurand, be integrated with original technology: guarantee that piston ring-the conforming end face of ring gauge bonding state is counter and push away location technology, self-adaptation end face coating technique, piston ring end gap clearance earnest is apart from imaging measurement technology, earnest is apart from imaging calibration technique, light leak degree ccd sensor normal incidence weak light detection technique, vision-based detection is without blind spot scanning technique, and ring gauge is static, ccd sensor and shadow shield synchronous rotary technology; And existing annular light source and high-frequency signal rotary connector avoid light source and ccd sensor to rotate the multinomial technology such as coiling.Integrated by a series of complexity that is original, existing technology, achieve expection object, design complete detectable small light slit, have meticulous angular resolution, high-level efficiency, full-automatic, three station piston ring light leak degree and the end-gaps detectors that are applicable to middle-size and small-size piston ring.

The present invention has open workbench.Can fast alteration detection specification by operations such as the annexes such as standard of replacement ring gauge and shadow shield, the structure regulating storing material guide mechanism and ccd sensor positions, also maintain easily and keep in repair.

The present invention adopts the control mode of the visual touch-screen of removable suspension type, can in real time monitor and detection flow process, observe the mass analysis data of single product and the process condition of bulk article.Use sense and control technique technology, develop emergency condition processing capacities such as lacking material, power-off, reduce artificial dependence, improve the robotization of instrument, intelligent level.

As shown in Fig. 4, Fig. 5, Fig. 6, Fig. 7, three station piston ring light leak degree and end-gaps automatic testers of the present invention, complete machine adopts horizontal table in conjunction with the one-piece construction of movable boom beam, and semi-girder carry touch-screen provides visualized operation interface easily directly perceived for workman.Complete machine electrical system main body is arranged at below horizontal table, and visual effect close friend is attractive in appearance.And three station structure designs centered by round turntable 17, a station performs storing, charging, end-gaps measuring ability; Two stations are for leaking photometric detection station; Three stations (coordinating the splicing frame of peripheral hardware) complete discharging, sorting function.Three stations are based on time parallel work.Central, circular rotating disk 17 is equidistantly fixed three ring standard gauges 22, centre is connected with the gear train of below, can rotate go forward one by one with the circulation realizing operation by driver part effect by preassigned pattern.Specifically include frame 5, the top planes of described frame 5 forms horizontal table 7, described horizontal table 7 is respectively arranged with above: semi-girder 1, be connected to the touch-screen 2 on semi-girder 1, for storing the material storage mechanism of piston ring 54, be positioned at below material storage mechanism for promoting the scraping wings 9 of material storage mechanism undermost a slice piston ring 54 horizontal forward side's detecting unit movement, described scraping wings 9 is driven by the pusher cylinder 41 be arranged on below horizontal table, be arranged at the round turntable 17 of the front detecting unit of material storage mechanism and scraping wings 9, described round turntable 17 be driven by round turntable driving mechanism be rotatably embedded on horizontal table 7, described round turntable 17 upper, upper respectively with described horizontal table 7 of lower surface, lower surface at grade, the front of described round turntable 17 is provided with the sorting mechanism 18 that the piston ring 54 after to detection carries out sorting, along the circumferential direction equally spacedly on described round turntable 17 be embedded with three ring standard gauges 22, each ring standard gauge 22 is a station, and the station of formation three movements is transferred in the dextrorotation of oblong rotating disk 17, wherein rotate the end-gaps being configured for detecting piston ring 54 end-gaps to a ring standard gauge 22 corresponding with described scraping wings 9 and detect station 27, at this moment another corresponding with described sorting mechanism 18 ring standard gauge 22 is configured for piston ring 54 to unload the unloading station 24 shifted out from round turntable 17, and remainder ring standard gauge 22 is configured for the leakage photometric detection station 21 detecting piston ring 54 light leak degree, what the moving direction of described scraping wings 9 and end-gaps detected the center of station 27 and unloading station 24 is centrally located on same straight line, the top of described horizontal table 7 is respectively arranged with the first mounting platform 19 and the second mounting platform 13, the first described mounting platform 19 is provided with and detects corresponding the first ccd sensor 42 for absorbing piston ring 54 end-gaps information of station 27 with end-gaps, the second described mounting platform 13 is provided with and drives the rotating actuator that for second ccd sensor 16 that absorb piston ring 54 light leak degree information rotate corresponding with leaking photometric detection station 21, below horizontal table 7, the corresponding photometric detection station 21 that leaks is provided with and is arranged on leakage photometric detection rotary drive mechanism on the 3rd mounting platform 39 and the 4th mounting platform 86 and lighting mechanism.

As Fig. 6, Fig. 7, shown in Fig. 9, the described material storage mechanism for storing piston ring 54, include the back up pad 76 above the scraping wings 9 that is arranged on horizontal table 7, the front portion of described back up pad 76 is formed with arc shaped opening, described arc shaped opening is corresponding with the front end of described scraping wings 9, the front portion V-arrangement be formed for holding a slice piston ring 54 of described scraping wings 9 gets stuck groove 55, the get stuck height of groove 55 of described V-arrangement is less than or equal to the height of a piston ring 54, the get stuck knuckle place of groove 55 of described V-arrangement is provided with the spacer 53 of remaining silent in direction of remaining silent for guide piston ring, described back up pad 76 is respectively arranged with: along back up pad 76 horizontal central line arrange can before, rear mobile the first regulating part 49 regulated, lay respectively at the second regulating part 50 and the 3rd regulating part 52 of the rotatable adjustment of the first described regulating part 49 both sides, the front end of the first described regulating part 49 is provided with and can goes up, the lower mobile triangular prism 10 regulated, the second described regulating part 50 and the front end of the 3rd regulating part 52 respectively correspondence are provided with and can go up, the first gear stock column 11 of lower mobile adjustment and second gear stock column 12, described triangular prism 10, the surface level that first gear stock column 11 and second gear stock column 12 line are formed is isosceles triangle plane.

As Fig. 2, Fig. 6, shown in Fig. 9, the top described horizontal table 7 being positioned at end-gaps detection station 27 and unloading station 24 is provided with material guide structure, described material guide structure is symmetrical the first stock guide 23 and the second stock guide 25 being arranged on end-gaps detection station 27 and unloading station 24 both sides, the first described stock guide 23 and the corresponding inner edge of the second stock guide 25 are to formation slope, both sides centered by the middle part on this limit, namely the external diameter under being greater than piston ring free state in material storage mechanism side and the distance between sorting mechanism 18 side first stock guide 23 and the second stock guide 25 liang of inner edges, be positioned at end-gaps detection station 27 place, distance between the first described stock guide 23 and the second stock guide 25 liang of inner edges be less than ring standard gauge 22 large end internal diameter 99 and be greater than piston ring be fully pressed state under external diameter, be positioned at unloading station 24 place, distance between the first described stock guide 23 and the second stock guide 25 liang of inner edges is greater than the large end internal diameter 99 of ring standard gauge 22 and the external diameter under being less than piston ring free state.

Piston ring to be measured stacks successively up and down in the storage bin be made up of triangular prism 10 and first gear stock column 11 and second gear stock column 12, by the two-dimensional constrains of three, has accurately consistent initial position.Pusher cylinder 41 drives scraping wings 9 forward piston ring to be pushed the top of end-gaps detection station 27.The V-arrangement that can block a slice piston ring of scraping wings 9 front end upper surface gets stuck groove 55, and the first stock guide 23 second stock guide 25 forms the deflector chute detecting station 27 clamping piston ring gradually at end-gaps.The distance of being a bit larger tham a slice ring thickness is left on first gear stock column 11 above scraping wings 9 and second gear stock column 12 and V-arrangement groove 55 surface that gets stuck, and is used for ensureing to only have a slice piston ring to be bottom pushed out at every turn.When changing tested piston ring specification, only the first regulating part 49, second regulating part 50 and the 3rd regulating part 52 need be regulated to make it adapt to the piston ring of new size to the relative position adjusting triangular prism and two backgauge posts, the ring standard gauge of conversion corresponding size, then adjust the front and back position of Distance geometry scraping wings of two stock guides.

Piston ring in storage bin in the raw time position of remaining silent determined by triangular prism 10.In pusher process, piston ring enters end-gaps along direction of propulsion and detects station 27, distance between the deflector chute be made up of the first stock guide 23 and the second stock guide 25 is gradually narrow with clamping piston ring, until its external diameter is less than the large end internal diameter 99 of ring standard gauge 22, ensure that piston ring can be pressed into ring gauge smoothly.On scraping wings, the get stuck knuckle place of groove 55 of the V-arrangement of 9 is provided with spacer 53 of remaining silent, accurate guide effect is played to the remaining silent of piston ring be constantly clamped in propelling, the rotation of limited piston ring between the first stock guide 23 and the second stock guide 25, thus ensure pusher put in place back piston ring end-gaps 51 be in the first ccd sensor 42 all the time can in the position range of effective imaging.

As Fig. 8, shown in Figure 10, the detent mechanism for carrying out end face location to tested piston ring 54 that on station 27, corresponding being provided with is positioned at the feeding pressure mechanism directly over the ring standard gauge 22 being embedded in round turntable 17 and is positioned at immediately below this ring standard gauge 22 is detected at described end-gaps, described feeding pressure mechanism includes the binder cylinder 43 driven by control module be arranged on above the second mounting platform 13, the binder driving stem 77 of binder cylinder 43 runs through the second mounting platform 13 successively, linear bearing 78 rearward end be arranged on the first mounting platform 19 connects binder disk 44, the diameter of described binder disk 44 is less than the internal diameter 100 of ring standard gauge 22 and the internal diameter under being greater than the compacted state of piston ring 54, binder disk 44 is formed with the first printing opacity mouth 79 with the camera lens corresponding section of the first described ccd sensor 42, described detent mechanism includes the end face positioning disc 40 below the ring standard gauge 22 being arranged in end-gaps detection station 27, be connected to the first oscillating bearing 45 of end face positioning disc 40 lower surface, the first described oscillating bearing 45 is connected with the second electromagnet 38 driven by control module be arranged on the 3rd mounting platform 39 by a connecting link, on described connecting link, cover has spring 46, correspondingly with the first printing opacity mouth 79 on described binder disk 44 on described end face positioning disc 40 be formed with the second printing opacity mouth 80, the flat-plate light source 48 corresponding with the first printing opacity mouth 79 and the second printing opacity mouth 80 is also provided with below described end face positioning disc 40, described binder cylinder 43, binder disk 44, ring standard gauge 22, end face positioning disc 40, the center of the first oscillating bearing 45 on the same axis.

After pusher puts in place, scraping wings 9 returns, and piston ring is pressed in ring standard gauge by the binder disk 44 that end-gaps detects directly over the ring standard gauge 22 in station 27 under the drive of binder cylinder 43.The first ccd sensor 42 measured for end-gaps and flat-plate light source 48 to be in respectively directly over piston ring end gap clearance 51 to be measured and immediately below.End face positioning disc 40 is fitted in lower surface, its central axis and ring standard gauge 22 dead in line of ring standard gauge 22 by spring 46 elastic force.When round turntable 17 rotates, end face positioning disc 40 departs from rotating disk under the second electromagnet 38 is by the effect of leverage 47.

Binder disk 44 and end face positioning disc 40 are formed with the first printing opacity mouth 79 and the second printing opacity mouth 80 respectively in the tested piston ring end gap clearance 51 of correspondence, flat-plate light source 48 and first ccd sensor 42 between by tested piston ring end gap clearance 51 form light-path after being pressed into ring standard gauge 22 for piston ring 54.When end-gaps is measured, gather end-gaps image by the first ccd sensor, draw end-gaps size after treatment.Rely on the accurate feeding of binder cylinder 43 spacing during binder, and spring 46 supports the adaptive characteristic to location, piston ring 54 lower surface of end face positioning disc 40 generation in end face detent mechanism, with binder disk 44 lower surface for benchmark, lock tested piston ring upper level, some exposes ring gauge and its upper surface distance first ccd sensor 42 has an accurately fixing object distance, the object distance imagings such as realization to guarantee all to make piston ring 54 by each binder.The adaptive characteristic of described end face location refers to that end face positioning disc 40 can rely on the effect of movable first oscillating bearing 45 and spring 46 to fit tightly lower surface in piston ring adaptively.

After binder disk returns; elastic force by means of spring 46 makes end face positioning disc 40 again fit with ring standard gauge lower surface; piston ring 54 is pushed back ring standard gauge 22; realize accurate end face location; guarantee the accuracy of piston ring and ring standard gauge bonding state, consistance, for the accurate detection of leaking photometric detection station 21 pairs of piston ring 54 light leak degree is afterwards given security.

As shown in Figure 6, Figure 7, described round turntable driving mechanism includes and is fixed on round turntable driving sleeve 81 on the 3rd mounting platform 39 and corresponding with round turntable 17 center, be arranged on the round turntable transmission shaft 82 that in round turntable driving sleeve 81 and upper end is fixedly connected with the center of round turntable 17, be fixedly connected on the toothed disc 36 of round turntable transmission shaft 82 lower end, the first servomotor 37 be meshed with described toothed disc 36, the first described servomotor 37 is fixedly installed on the 3rd mounting platform 39, on described round turntable 17 adjacent periphery also high precision be evenly provided with three the rotating disk pilot holes 20 corresponding with three ring standard gauges 22 be embedded in round turntable 17, the below of described horizontal table 7 be provided be fixed on the 3rd mounting platform 39 for correcting the round turntable detent mechanism with positioning round rotating disk 17 anglec of rotation, described round turntable detent mechanism includes the register pin cylinder 33 be fixed on the 3rd mounting platform 39, be connected to the driving stem top of register pin cylinder 33 for being inserted into the turntable locating pin 29 in rotating disk pilot hole 20, described turntable locating pin 29 is along on the through hole in the register pin orienting lug 83 be fixed on below horizontal table 7, lower movement.

Ring standard gauge on round turntable 17 is when aligning three stations, turntable locating pin 29 upwards heads into one of three rotating disk pilot holes under the effect of register pin cylinder 33, lock round turntable thus reliably fix, rotating rear issuable angular error to eliminate round turntable by set angle.After each detection, sorting action complete, end-gaps detects the end face positioning disc 40 of station 27, the shadow shield 72 leaking photometric detection station 21 and turntable locating pin 29 and under respective driver part effect, departs from round turntable 17 respectively, and rotating disk is released to free rotary state.Under normal mode, the first servomotor 37 drives round turntable to rotate clockwise 120 ° around central shaft by toothed disc 36 at every turn.After rotation completes register pin first reset response in one of three pilot holes 20, small adjustment is done to the position of worktable, thus ensure that the ring standard gauge position on each station has repeatability.Reset with rear end face positioning disc 40 and shadow shield 72, start next sense cycle.

As shown in figure 13, the rotary drive mechanism that described drive second ccd sensor 16 rotates includes: be fixed on the second mounting platform 13, main transmission axle sleeve 84 on horizontal table 7 and the 4th mounting platform 86, be arranged on the final drive shaft 66 in main transmission axle sleeve 84, be fixedly connected on the 4th gear 68 of final drive shaft 66 lower end, the driven wheel 67 be meshed with the 4th described gear 68, be fixedly connected on the first gear 65 of final drive shaft 66 upper end, the second gear 64 be meshed with the first described gear 65, the 3rd gear 62 be meshed with the second described gear 64, the second described gear 64 is arranged on the second mounting platform 13 by coder connecting shaft 85 and bearing, the upper end of described coder connecting shaft 85 connects scrambler 15, described scrambler 15 is fixed on the second mounting platform 13 by support, the 3rd described gear 62 is arranged on the second mounting platform 13 by hollow drive shaft 63 and bearing, the upper end of described hollow drive shaft 63 is corresponding with the rotor of rotary connector 14 to be arranged, described rotary connector 14 is fixed on the second mounting platform 13 by support, the lower end of hollow drive shaft 63 is positioned at the below of the second mounting platform 13 and is fixedly connected with the center rotating fixed head 61, the lower surface of described rotation fixed head 61 is fixedly installed the second ccd sensor 16.

As Figure 13, shown in Figure 14, described leakage photometric detection lighting mechanism includes and the 4th gear 68, the 5th gear 69 be meshed, the 6th gear 70 be meshed with the 5th gear 69, the 4th described gear 68 is meshed with driven wheel 67, the 5th described gear 69 is arranged on the 4th mounting platform 86 by coupling shaft and bearing, the 6th described gear 70 is arranged on the 4th mounting platform 86 by the axle sleeve of shadow shield transmission shaft 75 and bearing, the lower end of described shadow shield transmission shaft 75 run through the 3rd mounting platform 38 and be fixedly connected with to drive under electromagnet effect shadow shield transmission shaft 75 in its axle sleeve on, the leverage 87 of lower movement, the upper end of described shadow shield transmission shaft 75 is fixedly connected with by the center of second joint bearing 88 with shadow shield 72, the edge of described shadow shield 72 has a sector open 89, the base of described sector open 89 and the inward flange of the ring standard gauge 22 leaked on photometric detection station 21 are formed with the gap that radial width is less than tested piston ring radial width, the camera lens of described sector open 89 present position and the second described ccd sensor 16 is on same perpendicular line, described second joint bearing 88 or shadow shield transmission shaft 75 overcoat have the annular light source be fixedly installed on horizontal table 7.

The present invention adopts the second ccd sensor 16 to scan light leak degree situation with ring standard gauge 22 in conjunction with revolving zoned directly over circumference along piston ring 54.Fit below ring standard gauge and be subject to the shadow shield 72 of spring and electromagnet effect band sector open 89 moving up and down, have a high brightness annular light source 71 below shadow shield, three's central axes.Under the transmission of the gear train that shadow shield 72 and the rotation fixed head 61 that drives the second ccd sensor to rotate 16 form at multiple gear and corresponding transmission shaft, and by the driven by servomotor be directly connected with driven wheel 67, achieve the synchronous rotary of the equidirectional crossing over round turntable 17, ensure that the axis of the second ccd sensor 16 camera lens drops on the midline of sector open 89 all the time.Tested piston ring 54 covers sector open 89 in ring standard gauge 22, and annular light source 71, the light leak light slit 90 that may exist between sector open 89 place's piston ring and ring standard gauge and the second ccd sensor 16 form light-path.

The present invention utilizes the second ccd sensor 16 of high photosensitivity energy, scans along piston ring 54 with ring standard gauge 22 in conjunction with revolving zoned directly over circumference, takes the trickle light leak light slit 90 that may exist.Scrambler 15 rotates with the axis, and provides external trigger signal in conjunction with data collecting card for the second ccd sensor 16, makes its equidistantly collection N that often rotates a circle open (adjustable) image.Draw piston ring light leak data by image cut, splicing and a series of special algorithm, characterize the light leak degree situation of a slice piston ring.Be different from traditional Photoelectric Detection, the present invention is continuous but not gathers light leak signal discretely, can catch all faint point-like light leak and trickle light slit without blind spot.

Utilize annular light source 71 and high-frequency signal rotary connector 14, avoid the rotation coiling of light source and the second ccd sensor.By the optimum configurations to data collecting card, the soft readjustment that every circumference gathers image number can be realized.

As Fig. 6, Fig. 9, shown in Figure 15, described unloading station 24 is provided with the discharging cylinder 35 be fixedly mounted on the 3rd mounting platform 39, the driving stem of described discharging cylinder 35 runs through the 3rd mounting platform 39 top and is fixedly connected with discharging disk 28 by web member, described discharging disk 28 is corresponding with ring standard gauge 22 on unloading station 24, and the driving stem of described discharging cylinder 35, the center of discharging disk 28 and ring standard gauge 22 on the same line, the diameter of described discharging disk 28 is less than the internal diameter 100 of ring standard gauge 22 and the internal diameter under being greater than the compacted state of piston ring 54, horizontal table 7 is provided with unloading mechanism 4 between unloading station 24 and sorting mechanism 18, described unloading mechanism 4 comprises: be arranged on the material returned cylinder 26 driven by control module on the first stock guide 23 or the second stock guide 25, the drive division of described material returned cylinder 26 connects one end of T-bar transverse bar 96, the other end connection of described T-bar transverse bar 96 is arranged on the unloading mechanism guide rail 73 on the second described stock guide 25 or the first stock guide 23, T-bar longitudinal rod 97 is provided with material returned ratchet support 98, the outside of described material returned ratchet support 98 is hinged with the material returned ratchet 30 for tested piston ring to be delivered to sorting mechanism 18 from unloading station 24.

As shown in Fig. 5, Fig. 6, Fig. 9, Figure 15, described sorting mechanism 18 includes the gas cylinder erecting frame 95 be arranged on horizontal table 7, three gas cylinders 31 of triangular pitch are fixedly installed below described gas cylinder erecting frame 95, each gas cylinder 31 lower port is provided with sorting valve 32, three sorting valves 32 and corresponds respectively to for receiving the material-receiving device that is qualified, underproof and recoverable piston ring after sorting.

Above the ring standard gauge 22 of unloading station 24, the inset spacing of the first stock guide 23 and the second stock guide 25 is from being greater than the large end internal diameter 99 of ring standard gauge and the external diameter be less than under piston ring 54 free state.The diameter of the discharging disk 28 arranged immediately below ring standard gauge 22 is less than the internal diameter 100 of ring standard gauge 22 and the internal diameter under being greater than the compacted state of piston ring 54.Discharging disk 28 is used for by bulging force, the piston ring be suspended in ring standard gauge ejects, and piston ring is delivered to sorting mechanism 18 by the unloading mechanism 4 of ring standard gauge upper direction between the first stock guide 23 second stock guide 25 under material returned cylinder 26 acts on subsequently.After piston ring puts in place, the testing result according to correspondence is controlled pneumatic system air blowing sorting by sub-agencies 18, and piston ring is delivered to corresponding certified products, waste product from the ejection of one of three sorting valves 32 and maybe can be repaired the material-receiving device of product by gas.

As Figure 11, shown in Figure 12, Lithographic template calibrating block for three station piston ring light leak degree and end-gaps automatic tester of the present invention, it is characterized in that, include rectangular patch and two ends are formed with the calibrating block bracing frame 56 of printing opacity mouth, Lithographic template fixture block 57 below calibrating block bracing frame 56 and Lithographic template intermediate plate 58 is connected in turn by screw, described Lithographic template fixture block 57 and Lithographic template intermediate plate 58 are also formed with light openings in the printing opacity mouth corresponding section with calibrating block bracing frame 56, the Lithographic template 59 with standard light slit is accompanied between described Lithographic template fixture block 57 and Lithographic template intermediate plate 58, standard light slit on Lithographic template 59 respectively with Lithographic template fixture block 57, printing opacity mouth axis on Lithographic template intermediate plate 58 and calibrating block bracing frame 56 is corresponding.At timing signal, described calibrating block bracing frame 56 is positioned at the upper surface that end-gaps detects the ring standard gauge 22 on station 27, described Lithographic template fixture block 57 is embedded in described ring standard gauge 22, and standard light slit, the light openings of described Lithographic template 59 are corresponding with the camera lens of the first ccd sensor 42 with printing opacity mouth.

Adopt high-precision Lithographic template as reference-calibrating, it is wide that Lithographic template has high precision light penetrating slit, is placed on target size detecting distance place to demarcate end-gaps first ccd sensor 42.Lithographic template calibrating block 60 is put into the ring standard gauge 22 that end-gaps detects station 27, its support chip 56 frame is in ring standard gauge 22 upper surface, and when making the position of Lithographic template light slit in the first ccd sensor 42 visual field and detection piston ring, end-gaps position overlaps.By the effect of binder disk pressure, upper level when now height and the piston ring 54 of Lithographic template upper surface are pressed into ring standard gauge is consistent.The image of the wide Lithographic template standard light slit of known seam is gathered with the first ccd sensor 42, can converse this object distance lower gather the physical size of the measured object that each pixel is corresponding in image, as tracing to the source, benchmark provides pixel equivalent, and detected target size is made quantizing accurately accordingly, thus draw the testing result to piston ring end gap clearance 51.

Claims (8)

1. a station piston ring light leak degree and end-gaps automatic tester, include frame (5), it is characterized in that, the top planes of described frame (5) forms horizontal table (7), described horizontal table (7) is respectively arranged with above: semi-girder (1), be connected to the touch-screen (2) on semi-girder (1), for storing the material storage mechanism of piston ring (54), be positioned at below material storage mechanism for promoting the scraping wings (9) of material storage mechanism undermost a slice piston ring (54) horizontal forward side's detecting unit movement, described scraping wings (9) is driven by the pusher cylinder (41) be arranged on below horizontal table, be arranged at the round turntable (17) of the front detecting unit of material storage mechanism and scraping wings (9), described round turntable (17) be driven by round turntable driving mechanism be rotatably embedded on horizontal table (7), described round turntable (17) upper, upper respectively with described horizontal table (7) of lower surface, lower surface at grade, the front of described round turntable (17) is provided with the sorting mechanism (18) that the piston ring (54) after to detection carries out sorting, along the circumferential direction equally spacedly on described round turntable (17) be embedded with three ring standard gauges (22), each ring standard gauge (22) is a station, and the station of formation three movements is transferred in the dextrorotation of oblong rotating disk (17), wherein rotate the end-gaps being configured for detecting piston ring (54) end-gaps to a ring standard gauge (22) corresponding with described scraping wings (9) and detect station (27), at this moment corresponding with described sorting mechanism (18) another ring standard gauge (22) is configured for piston ring (54) to unload the unloading station (24) shifted out from round turntable (17), and remainder ring standard gauge (22) is configured for the leakage photometric detection station (21) detecting piston ring (54) light leak degree, what the moving direction of described scraping wings (9) and end-gaps detected the center of station (27) and unloading station (24) is centrally located on same straight line, the top of described horizontal table (7) is respectively arranged with the first mounting platform (19) and the second mounting platform (13), described the first mounting platform (19) is provided with and detects corresponding the first ccd sensor (42) for absorbing piston ring (54) end-gaps information of station (27) with end-gaps, described the second mounting platform (13) is provided with and drives the rotary drive mechanism that for second ccd sensor (16) that absorb piston ring (54) light leak degree information rotate corresponding with leaking photometric detection station (21), below horizontal table (7), corresponding photometric detection station (21) of leaking is provided with the leakage photometric detection lighting mechanism be arranged on the 3rd mounting platform (39) and the 4th mounting platform (86), the described material storage mechanism for storing piston ring (54), include the back up pad (76) of scraping wings (9) top be arranged on horizontal table (7), the front portion of described back up pad (76) is formed with arc shaped opening, described arc shaped opening is corresponding with the front end of described scraping wings (9), the front portion V-arrangement be formed for holding a slice piston ring (54) of described scraping wings (9) gets stuck groove (55), the get stuck height of groove (55) of described V-arrangement is less than or equal to the height of a piston ring (54), the get stuck knuckle place of groove (55) of described V-arrangement is provided with the spacer of remaining silent (53) in direction of remaining silent for guide piston ring, described back up pad (76) is respectively arranged with: along back up pad (76) horizontal central line arrange can before, rear mobile the first regulating part (49) regulated, lay respectively at the second regulating part (50) and the 3rd regulating part (52) of the rotatable adjustment of described the first regulating part (49) both sides, the front end of described the first regulating part (49) is provided with and can goes up, the lower mobile triangular prism (10) regulated, the front end of described the second regulating part (50) and the 3rd regulating part (52) respectively correspondence is provided with and can goes up, the first gear stock column (11) of lower mobile adjustment and second gear stock column (12), described triangular prism (10), the surface level that first gear stock column (11) and second gear stock column (12) line are formed is isosceles triangle plane.

2. three station piston ring light leak degree and end-gaps automatic testers according to claim 1, it is characterized in that, described round turntable driving mechanism includes and is fixed on upper and corresponding with round turntable (17) the center round turntable driving sleeve (81) of the 3rd mounting platform (39), be arranged on the round turntable transmission shaft (82) that in round turntable driving sleeve (81) and upper end is fixedly connected with the center of round turntable (17), be fixedly connected on the toothed disc (36) of round turntable transmission shaft (82) lower end, the first servomotor (37) be meshed with described toothed disc (36), described the first servomotor (37) is fixedly installed on the 3rd mounting platform (39), the upper adjacent periphery of described round turntable (17) is also evenly provided with three the rotating disk pilot holes (20) corresponding with three ring standard gauges (22) be embedded in round turntable (17), the below of described horizontal table (7) be provided be fixed on the 3rd mounting platform (39) for correcting and the round turntable detent mechanism of positioning round rotating disk (17) anglec of rotation, described round turntable detent mechanism includes the register pin cylinder (33) be fixed on the 3rd mounting platform (39), the driving stem top being connected to register pin cylinder (33) is used for the turntable locating pin (29) be inserted in rotating disk pilot hole (20), described turntable locating pin (29) is along on the through hole in the register pin orienting lug (83) be fixed on below horizontal table (7), lower movement.

3. three station piston ring light leak degree and end-gaps automatic testers according to claim 1, it is characterized in that, the top described horizontal table (7) being positioned at end-gaps detection station (27) and unloading station (24) is provided with material guide structure, described material guide structure is symmetrical the first stock guide (23) being arranged on end-gaps detection station (27) and unloading station (24) both sides and the second stock guide (25), described the first stock guide (23) and the corresponding inner edge of the second stock guide (25) are to formation slope, both sides centered by the middle part on this limit, namely material storage mechanism side is being positioned at and the distance be positioned between sorting mechanism (18) side first stock guide (23) and the second stock guide (25) two inner edge is greater than external diameter under piston ring free state, be positioned at end-gaps detection station (27) place, distance between described the first stock guide (23) and the second stock guide (25) two inner edge is less than the large end internal diameter (99) of ring standard gauge (22), and be greater than piston ring be fully pressed state under external diameter, be positioned at unloading station (24) place, distance between described the first stock guide (23) and the second stock guide (25) two inner edge is greater than the large end internal diameter (99) of ring standard gauge (22) and the external diameter under being less than piston ring free state.

4. three station piston ring light leak degree and end-gaps automatic testers according to claim 1, it is characterized in that, the detent mechanism for carrying out end face location to tested piston ring (54) being positioned at the feeding pressure mechanism directly over the ring standard gauge (22) being embedded in round turntable (17) in upper corresponding being provided with of described end-gaps detection station (27) and being positioned at immediately below this ring standard gauge (22), described feeding pressure mechanism includes the binder cylinder (43) driven by control module be arranged on above the second mounting platform (13), the binder driving stem (77) of binder cylinder (43) runs through the second mounting platform (13) successively, linear bearing (78) rearward end be arranged on the first mounting platform (19) connects binder disk (44), the diameter of described binder disk (44) is less than the internal diameter (100) of ring standard gauge (22) and the internal diameter under being greater than piston ring (54) compacted state, the camera lens corresponding section of the first ccd sensor (42) that described binder disk (44) is upper and described is formed with the first printing opacity mouth (79), described detent mechanism includes the end face positioning disc (40) below the ring standard gauge (22) being arranged in end-gaps detection station (27), be connected to first oscillating bearing (45) of end face positioning disc (40) lower surface, described the first oscillating bearing (45) is connected with the second electromagnet (38) driven by control module be arranged on the 3rd mounting platform (39) by a connecting link, on described connecting link, cover has spring (46), described end face positioning disc (40) is upper corresponding with the upper first printing opacity mouth (79) of described binder disk (44) is formed with the second printing opacity mouth (80), the flat-plate light source (48) corresponding with the first printing opacity mouth (79) and the second printing opacity mouth (80) is also provided with below described end face positioning disc (40), described binder cylinder (43), binder disk (44), ring standard gauge (22), end face positioning disc (40), the center of the first oscillating bearing (45) and the second electromagnet (38) on the same axis.

5. three station piston ring light leak degree and end-gaps automatic testers according to claim 1, it is characterized in that, the rotary drive mechanism that described driving second ccd sensor (16) rotates includes: be fixed on the second mounting platform (13), main transmission axle sleeve (84) on horizontal table (7) and the 4th mounting platform (86), be arranged on the final drive shaft (66) in main transmission axle sleeve (84), be fixedly connected on the 4th gear (68) of final drive shaft (66) lower end, the driven wheel (67) be meshed with the 4th described gear (68), be fixedly connected on first gear (65) of final drive shaft (66) upper end, the second gear (64) be meshed with described the first gear (65), the 3rd gear (62) be meshed with described the second gear (64), described the second gear (64) is arranged on the second mounting platform (13) by coder connecting shaft (85) and bearing, the upper end of described coder connecting shaft (85) connects scrambler (15), described scrambler (15) is fixed on the second mounting platform (13) by support, the 3rd described gear (62) is arranged on the second mounting platform (13) by hollow drive shaft (63) and bearing, the upper end of described hollow drive shaft (63) is corresponding with the rotor of rotary connector (14) to be arranged, described rotary connector (14) is fixed on the second mounting platform (13) by support, the lower end of hollow drive shaft (63) is positioned at the below of the second mounting platform (13) and is fixedly connected with the center rotating fixed head (61), the lower surface of described rotation fixed head (61) is fixedly installed the second ccd sensor (16).

6. three station piston ring light leak degree and end-gaps automatic testers according to claim 1, it is characterized in that, described leakage photometric detection lighting mechanism includes and the 4th gear (68), the 5th gear (69) be meshed, the 6th gear (70) be meshed with the 5th gear (69), the 4th described gear (68) is meshed with driven wheel (67), the 5th described gear (69) is arranged on the 4th mounting platform (86) by coupling shaft and bearing, the 6th described gear (70) is arranged on the 4th mounting platform (86) by the axle sleeve of shadow shield transmission shaft (75) and bearing, the lower end of described shadow shield transmission shaft (75) run through the 3rd mounting platform (38) and be fixedly connected with to drive under electromagnet effect shadow shield transmission shaft (75) in axle sleeve on, the leverage (87) of lower movement, the upper end of described shadow shield transmission shaft (75) is fixedly connected with by the center of second joint bearing (88) with shadow shield (72), the edge of described shadow shield (72) has a sector open (89), the base of described sector open (89) and the inward flange of the ring standard gauge (22) leaked in photometric detection station (21) are formed with the gap that radial width is less than tested piston ring radial width, the camera lens of described sector open (89) present position and described the second ccd sensor (16) is on same perpendicular line, described second joint bearing (88) or shadow shield transmission shaft (75) overcoat have the annular light source be fixedly installed on horizontal table (7).

7. three station piston ring light leak degree and end-gaps automatic testers according to claim 1, it is characterized in that, described unloading station (24) is provided with the discharging cylinder (35) be fixedly mounted on the 3rd mounting platform (39), the driving stem of described discharging cylinder (35) runs through the 3rd mounting platform (39) top and is fixedly connected with discharging disk (28) by web member, described discharging disk (28) is corresponding with the upper ring standard gauge (22) of unloading station (24), and the driving stem of described discharging cylinder (35), the center of discharging disk (28) and ring standard gauge (22) on the same line, the diameter of described discharging disk (28) is less than the internal diameter (100) of ring standard gauge (22) and the internal diameter under being greater than piston ring (54) compacted state, horizontal table (7) is positioned between unloading station (24) and sorting mechanism (18) and is provided with unloading mechanism (4), described unloading mechanism (4) comprising: be arranged on the material returned cylinder (26) driven by control module on the first stock guide (23) or the second stock guide (25), the drive division of described material returned cylinder (26) connects one end of T-bar transverse bar (96), the other end connection of described T-bar transverse bar (96) is arranged on the unloading mechanism guide rail (73) on described the second stock guide (25) or the first stock guide (23), T-bar longitudinal rod (97) is provided with material returned ratchet support (98), the outside of described material returned ratchet support (98) is hinged with the material returned ratchet (30) for tested piston ring (54) to be delivered to sorting mechanism (18) from unloading station (24).

8. three station piston ring light leak degree and end-gaps automatic testers according to claim 1, it is characterized in that, described sorting mechanism (18) includes the gas cylinder erecting frame (95) be arranged on horizontal table (7), three gas cylinders (31) of triangular pitch are fixedly installed below described gas cylinder erecting frame (95), each gas cylinder (31) lower port is provided with sorting valve (32), and three sorting valves (32) correspond respectively to for receiving the material-receiving device that is qualified, underproof and recoverable piston ring after sorting.