CN112577674B - Differential lock cylinder tightening leakage testing device - Google Patents
Differential lock cylinder tightening leakage testing device Download PDFInfo
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- CN112577674B CN112577674B CN202011403851.2A CN202011403851A CN112577674B CN 112577674 B CN112577674 B CN 112577674B CN 202011403851 A CN202011403851 A CN 202011403851A CN 112577674 B CN112577674 B CN 112577674B
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- differential lock
- lock cylinder
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a tightening leakage testing device for a differential lock cylinder, which comprises a pre-tightening area, a station buffer area and a checking area, wherein the pre-tightening area, the station buffer area and the checking area are sequentially arranged, the pre-tightening area comprises a fixed table for quick manual tooling, the station buffer area is used for placing the differential lock cylinder and pouring down in batches, the checking area comprises a checking table, a positioning device for positioning the differential lock cylinder, a pressing device and a sealing blowing device capable of moving forwards and backwards, the pressing device and the positioning device are arranged on the checking table, and the sealing blowing device is arranged on one side of the positioning device.
Description
Technical Field
The invention relates to the field of differential lock cylinders, in particular to a tightening leakage testing device for a differential lock cylinder.
Background
The differential lock is a device for locking a differential mechanism on an automobile, when the automobile encounters a muddy road and skids, the differential lock concentrates power transmitted to wheels on two sides onto one wheel, so that the automobile is free, a cylinder in the differential lock is an important part, one surface of the cylinder is connected with a main reducer shell on a vehicle axle, the other surface of the cylinder is provided with a cylinder cover, and a piston with an inner cavity is provided with a sealing ring and slides in the inner cavity.
In the use process of the cylinder, the cylinder is required to be guaranteed to be screwed up when assembled with the connector, no air leakage exists when ventilation is carried out, the differential lock cylinder is required to be tested for leakage to check tightness of the differential lock cylinder and the connector before delivery, and a screwing detection device for the differential lock cylinder is designed.
Disclosure of Invention
The invention aims to provide a tightening leakage testing device for a differential lock cylinder, which is characterized in that when in use, a connector, a clamp spring and an elastic gasket sleeved with a 0-shaped ring are respectively placed on a fixed table, then a differential lock cylinder sleeve rotates around a clockwise direction outside the connector, the clamp spring and the elastic gasket, and then the differential lock cylinder assembled with the connector is placed in a station buffer area; after the station buffer area is fully filled, the pneumatic torque wrench with the set rated torque is used for tightening the joint; then, the differential lock cylinders are subjected to leak test of whether the joints are sealed or not in the test area one by one, the differential lock cylinders are firstly placed on a positioning device of a test bench to be positioned, then, a pressing device presses two sides of the differential lock cylinders downwards and seals the differential lock cylinders, a sealing blowing device moves forwards to press the joint to seal and blow air into the joints, the differential lock cylinders are soaked in water in the test bench, whether bubbles are generated on the water surface or not is carefully observed, if yes, the differential lock cylinders are defective products, and the differential lock cylinders are put back into a station buffer area; if not, putting the qualified product on the other side, and conveniently conveying the qualified product to the next working procedure; leak testing is performed after the differential lock cylinder and the connector are screwed up to check tightness, so that the product qualification rate is higher, and the labor intensity of staff is reduced.
In order to achieve the above object, the present invention adopts the following technical scheme:
the utility model provides a differential lock cylinder screws up leak test device, includes pretension district, station buffer zone and inspection district, pretension district, station buffer zone and inspection district set gradually, pretension district is including the fixed station that is used for quick manual frock, uses the station buffer zone to place differential lock cylinder and fall down in batches, inspection district includes the checkout stand, be used for differential lock cylinder location's positioner, closing device and can the back-and-forth movement seal blowing device, closing device and positioner locate on the checkout stand, seal blowing device locates positioner one side.
Preferably, the pre-tightening area comprises a tooling table, the fixed table is fixed on the tooling table, a hexagonal anti-rotation groove is formed in the top of the fixed table, and a positioning rod is arranged in the center of the anti-rotation groove.
Preferably, the station buffer area comprises a placing table, the placing table is fixed on a tooling table, through grooves matched with the placing table are formed in the tooling table, a plurality of clamping grooves for placing air cylinders are formed in the placing table, the clamping grooves penetrate through the placing table, a movable plate capable of moving back and forth is arranged at the bottom of the placing table, an air cylinder is arranged on one side of the movable plate, a first air cylinder is fixed on the tooling table, and an extending shaft of the first air cylinder is fixedly connected with the side face of the movable plate.
Preferably, the inspection bench is provided with a groove, inspection liquid is placed in the groove, the groove is provided with a water outlet, and the water outlet is provided with a piston.
Preferably, the compressing device comprises a bottom plate, the bottom plate is fixed in the groove, a plurality of support columns are arranged around the bottom plate, a top plate is arranged at the top of each support column, two ends of each support column are respectively fixedly connected with the bottom plate and the top plate, a second cylinder is arranged on the top plate, an output shaft of the second cylinder can extend into the space between the bottom plate and the top plate, a compressing block is fixedly connected at the bottom of the output shaft of the second cylinder, and a rubber block for sealing is arranged below the compressing block.
Preferably, the positioning device comprises a fixing plate and three positioning columns, wherein long round holes are formed in two sides of the fixing plate, the long round holes are connected with the bottom plate through bolts, the positioning columns can be spirally connected with the fixing plate, rubber sheets used for sealing are arranged on the fixing plate, through holes matched with the positioning columns are formed in the rubber sheets, and the rubber sheets are arranged on the upper surface of the fixing plate.
Preferably, the sealed blowing device comprises a bottom plate, a handle, a connecting rod and a movable rod, wherein the bottom plate is provided with a connecting lug and a sliding sleeve, the handle is L-shaped, the front end of the L-shaped of the handle is rotatably connected with the connecting lug, the right angle part of the L-shaped of the handle is rotatably connected with one end of the connecting rod, the other end of the connecting rod is rotatably connected with one end of the movable rod, the movable rod can be movably arranged in the sliding sleeve back and forth, the front end of the movable rod is provided with an air tap, the side surface of the air tap is provided with an air pipe, and the other end of the air pipe is connected with the air pump.
Compared with the prior art, the differential lock cylinder tightening leakage testing device adopting the technical scheme has the following beneficial effects:
by adopting the differential lock cylinder tightening leak testing device, leak testing is carried out after the differential lock cylinder and the joint are tightened to check the tightness, so that the product percent of pass is higher, and the labor intensity of staff is reduced.
Drawings
Fig. 1 is a schematic structural view of a tightening leak testing device for a differential lock cylinder.
Fig. 2 is an enlarged view at a of fig. 1.
Fig. 3 is an enlarged view at B of fig. 1.
Fig. 4 is a schematic view of the use state of the differential lock cylinder tightening leak testing device.
Fig. 5 is an enlarged view at C of fig. 4.
Fig. 6 is an enlarged view of fig. 4 at D.
Reference numerals: 1. a tooling table; 11. a fixed table; 12. an anti-rotation groove; 13. a positioning rod; 2. a station buffer area; 21. a placement table; 22. a clamping groove; 23. a movable plate; 24. a first cylinder; 3. a test bench; 4. a positioning device; 41. a fixing plate; 42. positioning columns; 43. a rubber sheet; 5. a compacting device; 51. a bottom plate; 52. a support column; 53. a top plate; 54. a second cylinder; 55. a compaction block; 56. a rubber block; 6. sealing the blowing device; 61. a connecting lug; 62. a sliding sleeve; 63. a handle; 64. a connecting rod; 65. a movable rod; 71. a joint; 72. clamping springs; 73. an elastic washer; 8. and (5) a waste frame.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 6, a differential lock cylinder tightening leakage test device comprises a pre-tightening area, a station buffer area 2 and a test area, wherein the pre-tightening area, the station buffer area 2 and the test area are sequentially arranged, the pre-tightening area comprises a fixed table 11 for quick manual tooling, the station buffer area 2 is used for placing the differential lock cylinders and descending in batches, the test area comprises a test table 3, a positioning device 4 for positioning the differential lock cylinders, a pressing device 5 and a sealing blowing device 6 capable of moving forwards and backwards, the pressing device 5 and the positioning device 4 are arranged on the test table 3, the sealing blowing device 6 is arranged on one side of the positioning device 4, when in use, a joint 71, a clamp spring 72 and an elastic gasket 73 sleeved with a 0-shaped ring are respectively placed on the fixed table 11, then the differential lock cylinder sleeve rotates around the clockwise outside the joint 71, the clamp spring 72 and the elastic gasket 73, and then the differential lock cylinder assembled with the joint 71 is placed on the station buffer area 2; after the station buffer area 2 is fully filled, the pneumatic torque wrench with rated torque is used for tightening the joint 71; then the differential lock cylinders are subjected to leak test of whether the joints 71 are sealed or not in the test area one by one, the differential lock cylinders are firstly placed on the positioning device 4 of the test platform 3 for positioning, then the pressing device 5 downwards presses two sides of the differential lock cylinders and seals the differential lock cylinders, the sealing blowing device 6 forwards moves to press the joints 71 for sealing and blow air into the joints 71, the differential lock cylinders are soaked in water in the test platform 3, whether bubbles are generated on the water surface or not is carefully observed, if the bubbles are defective products, the defective products are put back into the station buffer area 2; if not, putting the qualified product on the other side, and conveniently conveying the qualified product to the next working procedure; leak testing is performed after the differential lock cylinder and the joint 71 are screwed up to check tightness, so that the product qualification rate is higher, and the labor intensity of staff is reduced.
The pretension district includes frock table 1, and fixed station 11 is fixed on frock table 1, and fixed station 11 top is equipped with hexagonal anti-rotation groove 12, effectively prevents to connect 71 card and can not rotate after going into, and anti-rotation groove 12 center is equipped with locating lever 13, and locating lever 13 is convenient for overlap establishes a plurality of parts of joint 71, jump ring 72 and elastic washer 73, holds differential lock cylinder jacket and rotates clockwise on locating lever 13, until changeing motionless, convenient quick assembly.
The station buffer zone 2 comprises a placing table 21, the placing table 21 is fixed on the tooling table 1, through grooves matched with the placing table 21 are formed in the tooling table 1, a waste frame 8 is arranged below the through grooves, clamping grooves 22 for a plurality of placing cylinders are formed in the placing table 21, clamping grooves 22 matched with differential lock cylinders are formed in the side faces of the clamping grooves 22, the clamping grooves 22 penetrate through the placing table 21, movable plates 23 capable of moving back and forth are arranged at the bottoms of the placing table 21, clamping strips are arranged in the middle of two side faces of the movable plates 23, movable grooves matched with the clamping strips are formed in the placing table 21, the movable plates 23 can be movably arranged in the movable grooves back and forth through the clamping strips, cylinders are arranged on one side of the movable plates 23, a first cylinder 24 is fixed on the tooling table 1, an extending shaft of the first cylinder 24 is fixedly connected with the side face of the movable plates 23, differential lock cylinders with screwed joints 71 are sequentially placed in the clamping grooves 22, unqualified differential lock cylinders are still in the clamping grooves 22 after test is carried out, after the differential lock cylinders of the batch of the station buffer zone 2 are detected, the first cylinder 24 can be driven to fall down to the bottom of the differential lock cylinders from the side of the movable plates 23 to the qualified waste frame 8.
The inspection bench 3 is provided with a groove, inspection liquid is placed in the groove, the inspection liquid is water or oil, the water surface exceeds the upper surface of the differential lock cylinder, the groove is provided with a water outlet, the inspection liquid is cleaned conveniently after the inspection liquid is used, the water outlet is provided with a piston, the depth of the groove is greater than that of the positioning device 4, and the positioning device 4 is positioned in the inspection liquid.
The compressing device 5 comprises a bottom plate 51, the bottom plate 51 is fixed in a groove, a plurality of supporting columns 52 are arranged around the bottom plate 51, top plates 53 are arranged at the tops of the supporting columns 52, two ends of each supporting column 52 are fixedly connected with the bottom plate 51 and the top plates 53 respectively, a second air cylinder 54 is arranged on each top plate 53, an output shaft of each second air cylinder 54 can extend into a space between the bottom plate 51 and the top plates 53, a compressing block 55 is fixedly connected at the bottom of the output shaft of each second air cylinder 54, a rubber block 56 used for sealing is arranged below the corresponding compressing block 55, a round groove similar to an ellipse is formed in the upper surface of each differential lock air cylinder, the rubber block 56 is in a shape matched with the round groove, the rubber block 56 is manually pressed in the round groove, and then the second air cylinder 54 drives the corresponding compressing block 55 at the front end to downwards compress the rubber block 56 and the differential lock air cylinder.
The positioning device 4 comprises a fixed plate 41 and three positioning columns 42, wherein long round holes are formed in two sides of the fixed plate 41 and are connected with a bottom plate 51 through bolts, the positioning columns 42 can be connected with the fixed plate 41 in a spiral manner, threads are formed below the positioning columns 42, guide circular arcs are formed at the tops of the positioning columns 42, threaded holes matched with the positioning columns 42 are formed in the fixed plate 41, three clamping holes are formed in differential lock cylinders, and the positions of the three positioning columns 42 are matched with the positions of the three clamping holes of the differential lock cylinders; the fixing plate 41 is provided with a rubber sheet 43 for sealing, the rubber sheet 43 is provided with a through hole matched with the positioning column 42, and the rubber sheet 43 is arranged on the upper surface of the fixing plate 41.
The sealed blowing device 6 comprises a bottom plate 51, a handle 63, a connecting rod 64 and a movable rod 65, wherein the bottom plate 51 is provided with a connecting lug 61 and a sliding sleeve 62, the handle 63 is L-shaped, the front end of the L-shape of the handle 63 is rotatably connected with the connecting lug 61, the right angle part of the L-shape of the handle 63 is rotatably connected with one end of the connecting rod 64, the other end of the connecting rod 64 is rotatably connected with one end of the movable rod 65, the movable rod 65 can be movably arranged in the sliding sleeve 62 back and forth, the front end of the movable rod 65 is provided with an air tap, the side surface of the air tap is provided with an air pipe, and the other end of the air pipe is connected with an air pump; the handle 63 is held by hand to push forwards to drive the movable rod 65 to move forwards, the air tap is inserted into the interface of the differential lock cylinder and is pressed, the air pump is started, the air tap is used for sucking air from the inside of the differential lock cylinder, the differential lock cylinder is completely immersed in liquid, whether bubbles are generated on the water surface or not is carefully observed, if the bubbles are defective products, the parts are placed in the station buffer zone 2 of the process; if not, the product is qualified, the product is placed in a qualified area on the other side, the product is conveniently sent to the next working procedure, water and air are simultaneously configured on the inspection bench 3 for leakage testing, the produced product is ensured to be qualified, the qualified product can be timely detected, and the detection precision is high.
The using process comprises the following steps:
1. the connector 71 with the 0-shaped ring sleeved, the clamp spring 72 and the elastic washer 73 are sequentially held by hands and placed on the positioning rod 13, and the connector 71 is clamped in the hexagonal anti-rotation groove 12, so that the connector 71 is effectively prevented from rotating.
2. The cylinder sleeve of the differential lock is held by hand and rotated clockwise on the positioning rod 13 until the cylinder sleeve is not rotated, and the differential lock cylinder with the screwed joint 71 is placed in the clamping groove 22 in sequence.
3. The rated torque of the pneumatic torque wrench is set to be 5-6.3N.m, and the wrench is used for aligning with the nut and then is pressed downwards forcefully to tighten the nuts in sequence.
4. The clamping grooves 22 of the station buffer area 2 are sequentially picked up, the differential lock cylinder is placed on the positioning column 42 to be positioned, the area of the rubber sheet 43 is larger than that of the differential lock cylinder, the rubber block 56 is placed on the circular groove of the differential lock cylinder, then the rear second cylinder 54 is started, and the compacting block 55 is driven to compact the gap between the differential lock cylinder and the rubber block 56.
5. The hand-held handle 63 is pushed forward to drive the movable rod 65 to move forward, the front end of the movable rod 65 inserts the air tap into the interface of the differential lock cylinder and compresses the air tap, the air pump is started, the air tap wants to enter the differential lock cylinder, and the differential lock cylinder is completely immersed in liquid.
6. Carefully observing whether bubbles are generated on the water surface, if so, putting the parts into the station buffer area 2 of the process, starting the first cylinder 24 after all differential lock cylinders of the station buffer area 2 are detected, driving the movable plate 23 to move inwards, and allowing the unqualified differential lock cylinders to pass through the through groove from the bottom of the clamping groove 22 and fall into the waste frame 8.
7. If not, the product is qualified and is placed in a qualified area on the other side, so that the product is conveniently sent to the next working procedure.
8. The inspection bench 3 is simultaneously provided with water and air for leakage test, so that the produced product is qualified, the qualified product can be timely detected, and the detection precision is high.
While the foregoing is directed to the preferred embodiment of the present invention, other and further modifications and improvements may be made by those skilled in the art without departing from the principles of the invention, and such are intended to be considered within the scope of the invention.
Claims (6)
1. The utility model provides a differential lock cylinder screw up leak testing device, a serial communication port, including the inspection district, the inspection district includes inspection bench (3), be used for differential lock cylinder location positioner (4), closing device (5) and sealing blowing device (6) that can reciprocate, closing device (5) and positioner (4) are located on inspection bench (3), sealing blowing device (6) are located positioner (4) one side, be equipped with the recess on inspection bench (3), place the inspection liquid in the recess, the inspection district opposite side still is equipped with pretension district and station buffer memory (2), pretension district, station buffer memory (2) and inspection district set gradually, pretension district is including being used for the fixed station (11) of quick manual frock, station buffer memory (2) are used for placing differential lock cylinder and fall down in batches, positioner (4) include fixed plate (41) and three reference column (42), reference column (42) can be connected with fixed plate (41) are equipped with on fixed plate (41) and are used for sealed rubber piece (43), be equipped with on rubber piece (43) and be equipped with on the rubber piece (43) and be equipped with on the fixed plate (43) and sealing rod (64), connecting rod (64) and sealing rod (64) are located on the surface of sealing rod (6), be equipped with engaging lug (61) and sliding sleeve (62) on bottom plate (51), handle (63) are L shape, the L shape front end and the engaging lug (61) of handle (63) are rotationally connected, the L shape right angle department and the connecting rod (64) one end of handle (63) are rotationally connected, the connecting rod (64) other end is rotationally connected with movable rod (65) one end, movable rod (65) can locate in sliding sleeve (62) with the back and forth activity, movable rod (65) front end is equipped with the air cock, the air cock side is equipped with the breather pipe, the other end and the air pump of breather pipe are connected.
2. The differential lock cylinder tightening leakage testing device according to claim 1, wherein the pre-tightening area comprises a tool table (1), a fixing table (11) is fixed on the tool table (1), a hexagonal anti-rotation groove (12) is formed in the top of the fixing table (11), and a positioning rod (13) is arranged in the center of the anti-rotation groove (12).
3. The differential lock cylinder tightening leakage testing device according to claim 2, wherein the station buffer area (2) comprises a placing table (21), the placing table (21) is fixed on the tool table (1), through grooves matched with the placing table (21) are formed in the tool table (1), a plurality of clamping grooves (22) for placing cylinders are formed in the placing table (21), the clamping grooves (22) penetrate through the placing table (21), a movable plate (23) capable of moving forwards and backwards is arranged at the bottom of the placing table (21), a cylinder is arranged on one side of the movable plate (23), a first cylinder (24) is fixed on the tool table (1), and an extending shaft of the first cylinder (24) is fixedly connected with the side face of the movable plate (23).
4. A differential lock cylinder tightening leak testing apparatus according to any one of claims 1 to 3, wherein the recess is provided with a water outlet and the water outlet is provided with a piston.
5. The differential lock cylinder tightening leakage testing device according to claim 4, wherein the pressing device (5) comprises a bottom plate (51), the bottom plate (51) is fixed in the groove, a plurality of supporting columns (52) are arranged around the bottom plate (51), a top plate (53) is arranged at the top of each supporting column (52), two ends of each supporting column (52) are fixedly connected with the bottom plate (51) and the top plate (53) respectively, a second cylinder (54) is arranged on the top plate (53), an output shaft of the second cylinder (54) can extend into the space between the bottom plate (51) and the top plate (53), a pressing block (55) is fixedly connected at the bottom of the output shaft of the second cylinder (54), and a rubber block (56) used for sealing is arranged below the pressing block (55).
6. The differential lock cylinder tightening leak testing device according to claim 5, wherein the two sides of the fixing plate (41) are provided with oblong holes, and the oblong holes are connected with the bottom plate (51) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011403851.2A CN112577674B (en) | 2020-12-02 | 2020-12-02 | Differential lock cylinder tightening leakage testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011403851.2A CN112577674B (en) | 2020-12-02 | 2020-12-02 | Differential lock cylinder tightening leakage testing device |
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| CN112577674A CN112577674A (en) | 2021-03-30 |
| CN112577674B true CN112577674B (en) | 2023-04-28 |
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| CN202011403851.2A Active CN112577674B (en) | 2020-12-02 | 2020-12-02 | Differential lock cylinder tightening leakage testing device |
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| JP2000055767A (en) * | 1998-08-07 | 2000-02-25 | Toyo Kakoki Kk | Device and method for testing gas valve for cylinder |
| CN204214604U (en) * | 2014-11-05 | 2015-03-18 | 天津铁路信号有限责任公司 | A kind of double leval jib gas cylinder testing platform |
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| CN201162643Y (en) * | 2007-12-13 | 2008-12-10 | 钱旦 | Portable hand-shaking inflator |
| CN101858818B (en) * | 2010-06-21 | 2011-09-28 | 南通星维油泵油嘴有限公司 | Testing device for detecting sealing property of delivery valve matching parts |
| CN201811824U (en) * | 2010-10-18 | 2011-04-27 | 广西玉柴机器股份有限公司 | Leak tester for main oil duct hole of cylinder block |
| CN106353039B (en) * | 2016-08-30 | 2018-03-06 | 苏州富强科技有限公司 | Rotary air-tightness detection device |
| CN208297050U (en) * | 2018-05-14 | 2018-12-28 | 上海合升机械有限公司 | A kind of air-tightness detection device of pump case |
| CN111098105B (en) * | 2019-12-17 | 2021-06-29 | 南京沃瑞新能源科技有限公司 | Buckling and air tightness detection integrated machine for six-station automobile exhaust pipe and working method of buckling and air tightness detection integrated machine |
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2020
- 2020-12-02 CN CN202011403851.2A patent/CN112577674B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000055767A (en) * | 1998-08-07 | 2000-02-25 | Toyo Kakoki Kk | Device and method for testing gas valve for cylinder |
| CN204214604U (en) * | 2014-11-05 | 2015-03-18 | 天津铁路信号有限责任公司 | A kind of double leval jib gas cylinder testing platform |
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