CN103033317A - Testing tool of air cylinder end cover - Google Patents
Testing tool of air cylinder end cover Download PDFInfo
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- CN103033317A CN103033317A CN2012105328155A CN201210532815A CN103033317A CN 103033317 A CN103033317 A CN 103033317A CN 2012105328155 A CN2012105328155 A CN 2012105328155A CN 201210532815 A CN201210532815 A CN 201210532815A CN 103033317 A CN103033317 A CN 103033317A
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- solenoid valve
- end cover
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Abstract
The invention relates to a testing tool of an air cylinder end cover. The testing tool of the air cylinder end cover comprises a rack, an end cover clamp, an end face sealing device, a combined seal ring sealing device, an air port sealing device and an air-tight seal test bed. The end cover clamp is arranged on the rack and used for fixing the air cylinder end cover. The end face sealing device is arranged on the rack and used for sealing the upper end face of the end cover. The combined seal ring sealing device is arranged on the rack and used for sealing a combined seal ring of the end cover. Air port sealing device is arranged on the rack and used for sealing an air port of the end cover. The air-tight seal test bed of an outer air source is connected with the end face sealing device. When the testing tool of the air cylinder end cover is used, the end cover is fixed in the end cover clamp, and the end face of the end cover, the position of the combined seal ring and the position of the air port are sealed through the end face sealing device, the combined seal ring sealing device and the air port sealing device. Then, the outer air source pumps air pressure into the end cover through the end face sealing device. Tightness of the air cylinder end cover is judged whether good or not in accordance with the phenomena that air bubbles whether occur on the air-tight test bed or not. Therefore, the testing tool of the air cylinder end has the advantages of being high in accuracy, high in detection efficiency and the like.
Description
Technical field
The present invention relates to a kind of mechanical frock, be specifically related to a kind of cylinder end piece test fixture.
Background technology
If in the process of cylinder assembling, before being encased in end cap on the cylinder barrel, often the sealing of end cap is not tested, generally all be after the cylinder assembling is finished, to carry out again sealing test.If substandard product in test, occurs, will carry out the reason investigation, need the dismounting cylinder to find out reason.If problem has appearred in the sealing of end cap, find again when by the time detecting after the assembling, caused like this waste in man-hour, and because the sealing problem of end cap occupies higher ratio, seemed particularly important so before assembling, end cap is carried out sealing propertytest.
Summary of the invention
The present invention provides a kind of frock of cylinder end piece being carried out performing leak test in order to overcome the deficiency of above technology.
The present invention overcomes the technical scheme that its technical matters adopts:
This cylinder end piece test fixture, comprise frame, be arranged on the end cover fixture that is used for the fixed air cylinder end cap on the frame, be arranged on the face seals that is used for the end cover upper surface on the frame, be arranged on the combined seal ring that is used for end cover on the frame the combination sealing ring seal device, be arranged on gas port packoff and the hermetic seal testing table of the gas port that is used for end cover on the frame, external air source hermetic seal testing table is connected in face seals.
In order to make the end cap of this cylinder end piece test fixture test different size, above-mentioned end cover fixture is removably fixed on the frame.
Described face seals comprises the cylinder B that is fixed in straight down on the frame, rotatably is installed on the sealing shroud A of cylinder B tailpiece of the piston rod by bearing pin, the bottom of described sealing shroud A is provided with groove, the size of described groove and the boss size on the end cap are complementary, and described sealing shroud A 7 is provided with for the gas port that connects external air source.
Combinations thereof O-ring seal packoff comprise the cylinder C that is fixed in straight up on the frame, vertically be fixed in sliding sleeve on the frame, float by screw and to be fixed in the connector of cylinder C tailpiece of the piston rod and to be installed on columniform sealing shroud B on the connector, described connector slides and is arranged in the sliding sleeve, and the interior hole dimension of combined seal ring is complementary in the outside dimension of described sealing shroud B and the end cap.
Above-mentioned gas port packoff comprise level and mounting bracket, the level of support one side be installed on cylinder A on the mounting bracket, be fixed in slide rail on the support, by screw float the floating junction that is fixed in cylinder A tailpiece of the piston rod, be installed on the floating junction 15 and slidably be placed in slide block and the vertical cylinder D that is fixed in the slide rail end in the slide rail, described slide rail is provided with regulating block towards a side of floating junction.
In order to improve sealing property, on the above-mentioned sealing shroud, gas port seal head top is respectively arranged with O-ring seal A, O-ring seal B.
In order to realize robotization control, also comprise PLC, be connected in the solenoid valve A of PLC, be connected in the solenoid valve B of solenoid valve A, solenoid valve C, solenoid valve D, solenoid valve E, the gentle leakage test platform of solenoid valve F, cylinder A is connected in solenoid valve B, cylinder B is connected in solenoid valve C, cylinder C is connected in solenoid valve D, cylinder D is connected in solenoid valve E, solenoid valve G is connected in solenoid valve F, gas port is connected in the gentle leakage test platform of solenoid valve G, the top in the cylinder barrel outside of described cylinder A is equipped with magnetic switch A, the top in the cylinder barrel outside of described cylinder B is equipped with magnetic switch B, top and the tail end in the cylinder barrel outside of described cylinder D are separately installed with magnetic switch C and magnetic switch D, described magnetic switch A, magnetic switch B, magnetic switch C and magnetic switch D are connected to PLC.
The invention has the beneficial effects as follows: during use end cap is fixed in the end cover fixture, and by face seals, combination sealing ring seal device and gas port packoff respectively with end face, combined seal ring position and the sealing of gas port position of end cap, whether external air source is squeezed into air pressure by face seals to end cap inside afterwards, good with the sealing of determining cylinder end piece by whether the hermetic seal testing table there being Bubble formation.Therefore utilize this cylinder end piece test fixture to detect and have accuracy height, detection efficiency high.
Description of drawings
Fig. 1 is main TV structure synoptic diagram of the present invention;
Fig. 2 is plan structure synoptic diagram of the present invention;
Fig. 3 is the airtight detected state structural representation of cylinder cap of the present invention;
Fig. 4 is the local structure for amplifying synoptic diagram of the A of Fig. 1;
Fig. 5 is the local structure for amplifying synoptic diagram of the B of Fig. 1;
Fig. 6 is the local structure for amplifying synoptic diagram of the C of Fig. 2;
Fig. 7 is control system schematic diagram of the present invention;
Among the figure, 1. cylinder A 2. mounting brackets 3. slide rails 4. frames 5. cylinder B 6. bearing pins 7. sealing shroud A 8. end cover fixtures 9. connectors 10. cylinder C 11. sealing shroud B 12. end caps 13. regulating blocks 14. slide blocks 15. floating junctions 16. cylinder D 17. gas port seal heads 18. O-ring seal A 19. O-ring seal B 20. sliding sleeves 21. gas ports.
Embodiment
The present invention will be further described to accompanying drawing 7 below in conjunction with accompanying drawing 1.
This cylinder end piece test fixture, comprise frame 4, be arranged on the end cover fixture 8 that is used for fixed air cylinder end cap 12 on the frame 4, be arranged on the face seals that is used for end cover 12 upper surfaces on the frame 4, be arranged on the combined seal ring that is used for end cover 12 on the frame 4 the combination sealing ring seal device, be arranged on gas port packoff and the hermetic seal testing table of the gas port that is used for end cover 12 on the frame 4, external air source hermetic seal testing table is connected in face seals.During use end cap 12 is fixed in the end cover fixture 8, and by face seals, combination sealing ring seal device and gas port packoff respectively with end face, combined seal ring position and the sealing of gas port position of end cap, whether external air source is squeezed into air pressure by face seals to end cap 12 inside afterwards, good with the sealing of determining cylinder end piece by whether the hermetic seal testing table there being Bubble formation.Therefore utilize this cylinder end piece test fixture to detect and have accuracy height, detection efficiency high.
Above-mentioned end cover fixture 8 is removably fixed on the frame 4.End cover fixture 8 can be made corresponding end cover fixture 8 for different end cap 12 according to actual conditions, and the end cover fixture 8 that according to circumstances will match when detecting is fixed on the frame 4, has improved the scope of application of this cylinder end piece test fixture.
Described face seals comprises the cylinder B 5 that is fixed in straight down on the frame 4, rotatably is installed on the sealing shroud A 7 of cylinder B 5 tailpieces of the piston rod by bearing pin 6, the bottom of described sealing shroud A 7 is provided with groove, boss size on the size of described groove and the end cap 12 is complementary, and described sealing shroud A 7 is provided with for the gas port 21 that connects external air source.Cylinder B 5 promotes the upper surface that sealing shroud A 7 pushes down end cap 12, because sealing shroud A 7 rotatably is installed on cylinder B 5 tailpieces of the piston rod by bearing pin 6, therefore press down in the process at cylinder B 5, sealing shroud A 7 can automatic capturing, 12 of sealing shroud A 7 and end caps are contacted, avoid sealing shroud A 7 owing to causing sealing shroud A 7 in pressing down, to contact with end cap 12 lines with cylinder B 5 piston rods are extremely fixing.
Combinations thereof O-ring seal packoff comprise the cylinder C 10 that is fixed in straight up on the frame 4, vertically be fixed in sliding sleeve 20 on the frame 4, float by screw and to be fixed in the connector 9 of cylinder C 10 tailpieces of the piston rod and to be installed on columniform sealing shroud B 11 on the connector 9, described connector 9 slides and is arranged in the sliding sleeve 20, and the interior hole dimension of combined seal ring is complementary in the outside dimension of described sealing shroud B 11 and the end cap 12.Cylinder C 10 promotes connectors 9 and drives in the composite rim that the sealing shroud B 11 that is installed on the connector 9 is inserted into end cap 12 and seal, because floating by screw, connector 9 is fixed in cylinder C 10 tailpieces of the piston rod, therefore can make sealing shroud B 11 realize during insertion automatic capturing, avoid sealing shroud B 11 directly to be fixed on the piston rod of cylinder C 10 when sealing, seal because dislocation causes sealing shroud B 11 to be inserted in the composite rim smoothly.
Above-mentioned gas port packoff comprise level and mounting bracket 2, the level of support 4 one sides be installed on cylinder A 1 on the mounting bracket 2, be fixed in slide rail 3 on the support 2, by screw float the floating junction 15 that is fixed in cylinder A 1 tailpiece of the piston rod, be installed on the floating junction 15 and slidably be placed in slide block 14 and the vertical cylinder D 16 that is fixed in slide rail 3 ends in the slide rail 3, described slide rail 3 is provided with regulating block 13 towards a side of floating junction 15.Cylinder A 1 promotes floating junction 15 band movable sliders 14 and moves along slide rail 3, thereby cylinder D 16 is pushed to the position of gas port 21 on the end cap 12.Cylinder D 16 promotes gas port seal heads 17 and is inserted into the gas port sealing that realizes end cap 12 in the gas port that end cap 12 deletes afterwards.Because the gas port position of the cylinder end piece 12 of different model is different, therefore can make according to demand the regulating block 13 of different-thickness, can realize adjusting the extension elongation of the piston rod of cylinder A 1 by increasing regulating block 13, thereby realize according to the position of the gas port 21 of different size cylinder D 16 being delivered to the relevant position.
On the described sealing shroud 7, gas port seal head 17 tops are respectively arranged with O-ring seal A 18, O-ring seal B 19, in order to improve the sealing of each junction, prevent from occuring the phenomenon of gas leakage in the end cap seal property testing, affect test result.
Also comprise PLC, be connected in the solenoid valve A of PLC, be connected in the solenoid valve B of solenoid valve A, solenoid valve C, solenoid valve D, solenoid valve E, the gentle leakage test platform of solenoid valve F, cylinder A 1 is connected in solenoid valve B, cylinder B 5 is connected in solenoid valve C, cylinder C 10 is connected in solenoid valve D, cylinder D 16 is connected in solenoid valve E, solenoid valve G is connected in solenoid valve F, gas port 21 is connected in the gentle leakage test platform of solenoid valve G, the top in the cylinder barrel outside of described cylinder A 1 is equipped with magnetic switch A, the top in the cylinder barrel outside of described cylinder B 5 is equipped with magnetic switch B, top and the tail end in the cylinder barrel outside of described cylinder D 16 are separately installed with magnetic switch C and magnetic switch D, described magnetic switch A, magnetic switch B, magnetic switch C and magnetic switch D are connected to PLC.At first press start button rear electromagnetic valve A and open the connection external air source, the piston rod of solenoid valve B action control cylinder B 5 stretches out and promotes the upper surface that sealing shroud A 7 pushes down end cap 12, magnet ring on the piston triggers the magnetic switch B on the top, the cylinder barrel outside that is arranged on cylinder B 5 at this moment, magnetic switch B and with signal feedback to PLC, PLC control solenoid valve A and solenoid valve D action are moved cylinder A 1 and cylinder C 10 simultaneously, cylinder C 10 promotes sealing shroud B 19 the end cap composite rim is sealed, the piston rod of cylinder A 1 is released cylinder D 16 is pushed to gas port position on the end cap 12, when the piston rod of cylinder A 1 reaches the relevant position, magnet ring on the piston triggers the magnetic switch A on the top, the cylinder barrel outside that is arranged on cylinder A 1 at this moment, magnetic switch A and with signal feedback to PLC, PLC control solenoid valve E action makes cylinder D 16 actions, the piston rod of cylinder D 16 promotes the sealing that gas port seal head 17 is realized the gas port of end cap 12, when the piston rod of cylinder D 16 reaches maximum position, the time magnet ring on the piston trigger the magnetic switch C on the top, the cylinder barrel outside that is arranged on cylinder D 16, magnetic switch C with signal feedback to PLC, PLC control solenoid valve F and solenoid valve G connect gas port 21 and external air source, realization is to end cap 12 applied voltage tests, and observes whether there is gas leak phenomenon by the hermetic seal testing table.But after test finishes, press reset button, PLC control solenoid valve C, solenoid valve D, solenoid valve E action, make the piston rod rollback of cylinder B 5, cylinder C 10 and cylinder D 16, when the piston rod of cylinder D 16 retracted to bottommost, magnet ring on the piston triggered the magnetic switch D of the cylinder barrel outside tail end that is arranged on cylinder D 16, magnetic switch D with signal feedback to PLC, PLC control solenoid valve B action is retracted the piston rod of cylinder A 1, thereby is that a bottom end cover 12 tests are ready.
Claims (7)
1. cylinder end piece test fixture, it is characterized in that: comprise frame (4), be arranged on the end cover fixture (8) that is used for fixed air cylinder end cap (12) on the frame (4), be arranged on the face seals that is used for end cover (12) upper surface on the frame (4), be arranged on the combination sealing ring seal device of the combined seal ring that is used for end cover (12) on the frame (4), be arranged on gas port packoff and the hermetic seal testing table of the gas port that is used for end cover (12) on the frame (4), external air source hermetic seal testing table is connected in face seals.
2. cylinder end piece test fixture according to claim 1, it is characterized in that: described end cover fixture (8) is removably fixed on the frame (4).
3. cylinder end piece test fixture according to claim 1, it is characterized in that: described face seals comprises the cylinder B(5 that is fixed in straight down on the frame (4)), rotatably be installed on cylinder B(5 by bearing pin (6)) the sealing shroud A(7 of tailpiece of the piston rod), described sealing shroud A(7) bottom is provided with groove, boss size on the size of described groove and the end cap (12) is complementary, described sealing shroud A(7) be provided with for the gas port (21) that connects external air source.
4. cylinder end piece test fixture according to claim 1, it is characterized in that: described combination sealing ring seal device comprises the cylinder C(10 that is fixed in straight up on the frame (4)), vertically be fixed in the sliding sleeve (20) on the frame (4), float by screw and to be fixed in cylinder C(10) connector (9) of tailpiece of the piston rod and be installed on columniform sealing shroud B(11 on the connector (9)), described connector (9) slides and to be arranged in the sliding sleeve (20) described sealing shroud B(11) the interior hole dimension of outside dimension and the middle combined seal ring of end cap (12) be complementary.
5. the described cylinder end piece test fixture of any one in 4 according to claim 1, it is characterized in that: described gas port packoff comprises the mounting bracket (2) of level and support (4) one sides, level is installed on the cylinder A(1 on the mounting bracket (2)), be fixed in the slide rail (3) on the support (2), float by screw and to be fixed in cylinder A(1) floating junction (15) of tailpiece of the piston rod, be installed on cylinder D(16 on the floating junction (15) and that slidably be placed in the slide block (14) in the slide rail (3) and vertically be fixed in slide rail (3) end), described slide rail (3) is provided with regulating block (13) towards a side of floating junction (15).
6. cylinder end piece test fixture according to claim 5 is characterized in that: described sealing shroud (7) is upper, gas port seal head (17) top is respectively arranged with O-ring seal A(18), O-ring seal B(19).
7. cylinder end piece test fixture according to claim 6, it is characterized in that: also comprise PLC, be connected in the solenoid valve A of PLC, be connected in the solenoid valve B of solenoid valve A, solenoid valve C, solenoid valve D, solenoid valve E, the gentle leakage test platform of solenoid valve F, cylinder A(1) is connected in solenoid valve B, cylinder B(5) is connected in solenoid valve C, cylinder C(10) is connected in solenoid valve D, cylinder D(16) is connected in solenoid valve E, solenoid valve G is connected in solenoid valve F, gas port (21) is connected in the gentle leakage test platform of solenoid valve G, the top in the cylinder barrel outside described cylinder A(1) is equipped with magnetic switch A, the top in the cylinder barrel outside described cylinder B(5) is equipped with magnetic switch B, top and the tail end in the cylinder barrel outside described cylinder D(16) are separately installed with magnetic switch C and magnetic switch D, described magnetic switch A, magnetic switch B, magnetic switch C and magnetic switch D are connected to PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210532815.5A CN103033317B (en) | 2012-12-12 | 2012-12-12 | Testing tool of air cylinder end cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210532815.5A CN103033317B (en) | 2012-12-12 | 2012-12-12 | Testing tool of air cylinder end cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103033317A true CN103033317A (en) | 2013-04-10 |
| CN103033317B CN103033317B (en) | 2015-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210532815.5A Expired - Fee Related CN103033317B (en) | 2012-12-12 | 2012-12-12 | Testing tool of air cylinder end cover |
Country Status (1)
| Country | Link |
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| CN (1) | CN103033317B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931199A (en) * | 2015-06-06 | 2015-09-23 | 广西玉柴机器股份有限公司 | Rear oil seal leakage testing device |
| CN105092167A (en) * | 2015-09-15 | 2015-11-25 | 浙江亿太诺气动科技有限公司 | Cylinder end cap hole detection device and method |
| CN109341980A (en) * | 2018-11-09 | 2019-02-15 | 襄阳市中康汽车配件有限公司 | A kind of air tightness detecting device of engine cylinder head |
| CN110044314A (en) * | 2019-03-27 | 2019-07-23 | 南京泰普森自动化设备有限公司 | Flexible floating straight pillar matching cylinder cap measuring device and cylinder cap automatic assembly line |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20306379U1 (en) * | 2003-04-24 | 2003-06-18 | Festo Ag & Co | Fastening element and matching cylinder cover of a fluid-operated working cylinder |
| CN101266185A (en) * | 2008-05-07 | 2008-09-17 | 常州市科信燃气设备有限公司 | Voltage-regulating transformer valve body detection device |
| CN101769816A (en) * | 2009-09-08 | 2010-07-07 | 海洋王照明科技股份有限公司 | Sealing ring tightness measuring device |
| CN102221441A (en) * | 2011-03-15 | 2011-10-19 | 大连市锅炉压力容器检验研究院 | Sealing detector for safety valve |
| CN202928753U (en) * | 2012-12-12 | 2013-05-08 | 费斯托气动有限公司 | Testing tool for cylinder end cap |
-
2012
- 2012-12-12 CN CN201210532815.5A patent/CN103033317B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20306379U1 (en) * | 2003-04-24 | 2003-06-18 | Festo Ag & Co | Fastening element and matching cylinder cover of a fluid-operated working cylinder |
| CN101266185A (en) * | 2008-05-07 | 2008-09-17 | 常州市科信燃气设备有限公司 | Voltage-regulating transformer valve body detection device |
| CN101769816A (en) * | 2009-09-08 | 2010-07-07 | 海洋王照明科技股份有限公司 | Sealing ring tightness measuring device |
| CN102221441A (en) * | 2011-03-15 | 2011-10-19 | 大连市锅炉压力容器检验研究院 | Sealing detector for safety valve |
| CN202928753U (en) * | 2012-12-12 | 2013-05-08 | 费斯托气动有限公司 | Testing tool for cylinder end cap |
Non-Patent Citations (1)
| Title |
|---|
| 孔繁铭: "气缸出厂检验试验台", 《液压气动与密封》, no. 3, 8 January 2004 (2004-01-08), pages 32 - 34 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931199A (en) * | 2015-06-06 | 2015-09-23 | 广西玉柴机器股份有限公司 | Rear oil seal leakage testing device |
| CN105092167A (en) * | 2015-09-15 | 2015-11-25 | 浙江亿太诺气动科技有限公司 | Cylinder end cap hole detection device and method |
| CN109341980A (en) * | 2018-11-09 | 2019-02-15 | 襄阳市中康汽车配件有限公司 | A kind of air tightness detecting device of engine cylinder head |
| CN109341980B (en) * | 2018-11-09 | 2020-11-13 | 襄阳市中康汽车配件有限公司 | Engine cylinder cover air tightness detection device |
| CN110044314A (en) * | 2019-03-27 | 2019-07-23 | 南京泰普森自动化设备有限公司 | Flexible floating straight pillar matching cylinder cap measuring device and cylinder cap automatic assembly line |
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| Publication number | Publication date |
|---|---|
| CN103033317B (en) | 2015-02-18 |
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