CN211728428U - Oil pressure quick positioning device - Google Patents
Oil pressure quick positioning device Download PDFInfo
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- CN211728428U CN211728428U CN201922415134.0U CN201922415134U CN211728428U CN 211728428 U CN211728428 U CN 211728428U CN 201922415134 U CN201922415134 U CN 201922415134U CN 211728428 U CN211728428 U CN 211728428U
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Abstract
The utility model relates to a positioning device, in particular to an oil pressure quick positioning device, which comprises a plurality of locking steel balls and a cylinder body, wherein the top of the cylinder body is provided with a positioning sleeve, the positioning sleeve is provided with a plurality of steel ball holes, the locking steel balls are movably inserted into the steel ball holes, and the bottom of the cylinder body is provided with a lifting hole; the pull rod is slidably inserted into the positioning sleeve, a steel ball groove is formed in the top of the pull rod, a pressing surface is arranged on one side of the steel ball groove, and the locking steel ball is located in the steel ball groove; the piston is inserted in the lifting hole in a sliding manner and is connected with the pull rod; the pressing device is used for pressing the pressing surface on the locking steel ball; a first conical positioning conical surface is arranged on the outer side of the positioning conical ring, and the positioning conical ring is inserted on the positioning sleeve in a sliding manner; the elastic device is arranged between the positioning conical ring and the cylinder body and is used for jacking the positioning conical ring. The utility model provides a quick positioner of oil pressure repeated positioning accuracy is high, can press from both sides tight tray, tray installation fast, convenient fast.
Description
Technical Field
The utility model relates to a positioner, especially quick positioner of oil pressure.
Background
The production of small-batch multi-variety products requires good universality of equipment, otherwise, the production cost is higher, and the equipment investment is large. The production equipment suitable for small-batch production and multiple varieties generally realizes the change of production products by replacing a clamp. This just can conveniently change between the tray that needs mounting fixture and the base plate to the positioner of positioning accuracy height adopts the locating pin location at present mostly, sets up the locating pin on the base plate, and the bottom of tray sets up the locating hole, but for the change of convenient tray, is clearance fit between locating hole and the locating pin, therefore the repeated positioning accuracy is low, can't satisfy the positioning requirement of high accuracy. Meanwhile, the tray needs to be fixed on the base plate through bolts, and the time for replacing the tray is long.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides a quick positioner of oil pressure that repeated positioning accuracy is high, fixed quick, concrete technical scheme is:
the oil pressure quick positioning device comprises a plurality of locking steel balls and a cylinder body, wherein the top of the cylinder body is provided with a positioning sleeve, the outer circular surface of the positioning sleeve is provided with a plurality of steel ball holes, the locking steel balls are movably inserted into the steel ball holes, and the bottom of the cylinder body is provided with a lifting hole; the pull rod is slidably inserted into the positioning sleeve, a steel ball groove is formed in the top of the pull rod, a pressing surface is arranged on one side of the steel ball groove, the locking steel ball is located in the steel ball groove, part of the locking steel ball protrudes out of the outer circular surface of the positioning sleeve when the pressing surface is used for pressing the locking steel ball, and the locking steel ball can be retracted into the positioning sleeve when the locking steel ball is opposite to the steel ball groove; the piston is inserted into the lifting hole in a sliding mode, and the bottom of the pull rod is connected with the piston; the pressing device is arranged between the piston and the cylinder body and is used for pressing the pressing surface on the locking steel ball; the outer side of the positioning conical ring is provided with a conical first positioning conical surface, and the positioning conical ring is inserted on the positioning sleeve in a sliding manner; and the elastic device is arranged between the positioning conical ring and the cylinder body and is used for jacking the positioning conical ring.
Through adopting above-mentioned technical scheme, the oil groove begins on the base plate, and the piston is located the oil groove, jacking piston when the oil groove oil feed, piston descend under closing device's effect when the oil groove produces oil, and the piston drives the pull rod and descends, and the face that compresses tightly on the pull rod compresses tightly the locking steel ball on the steel ball hole and makes the outer disc of the part outstanding position sleeve of locking steel ball to locking hole on the locking tray prevents that the tray from droing.
The positioning conical ring is inserted into a hole at the bottom of the tray to realize the positioning of the tray, and the elastic device is used for compressing the positioning conical ring between the tray and the positioning sleeve to improve the positioning precision.
Further, the steel ball groove is an annular groove, and the compression surface is a conical surface.
By adopting the technical scheme, the annular steel ball groove is convenient to assemble.
Furthermore, the pressing device comprises a pressing spring, the pressing spring is positioned in the lifting hole, one end of the pressing spring is pressed at the bottom of the lifting hole, and the other end of the pressing spring is pressed on the piston.
Furthermore, the compression springs are disc springs, the disc springs are multiple, the disc springs are installed in a positive and negative staggered mode, and the compression springs are arranged along the axis of the pull rod.
By adopting the technical scheme, the belleville spring is high in rigidity, strong in buffering and vibration absorbing capacity and small in deformation to bear large load.
Furthermore, a telescopic groove is formed in the positioning conical ring and is a through groove.
Through adopting above-mentioned technical scheme, flexible groove makes location taper ring can enlarge or reduce, and resilient means compresses tightly location taper ring between tray and position sleeve, realizes the accurate location of high-end.
Furthermore, the elastic device comprises a plurality of jacking springs which are annularly arranged at equal intervals around the axis of the positioning sleeve.
The cylinder body is provided with a positioning sleeve, and the positioning sleeve is provided with a positioning hole; one end of the air blowing communicating air passage is positioned on the outer circular surface of the pull rod and is communicated with the other end of the air blowing air inlet air passage, and the other end of the air blowing communicating air passage is positioned at the top of the pull rod; and a plurality of air blowing holes are formed in the top of the positioning sleeve.
Through adopting above-mentioned technical scheme, the hole of blowing can clear away iron fillings, cutting fluid and other filths, guarantees the location accuracy.
The top plug is movably inserted into the top of the positioning sleeve, a plurality of air blowing holes are formed in the top plug, and the air blowing holes are annularly arranged around the axis of the top plug; the first spring is positioned between the top plug and the pull rod; and when the top plug is tightly pressed on the top of the pull rod and the piston are both positioned at the highest positions, the top surface of the top plug and the air blowing hole are both higher than the top surface of the positioning sleeve.
The locking device is characterized by further comprising a movable sleeve, wherein a positioning hole is formed in the movable sleeve, a locking conical surface is arranged at the top of the positioning hole, a second positioning conical surface is arranged at the bottom of the positioning hole, the locking steel ball is tightly pressed on the locking conical surface, and the second positioning conical surface is matched with the first positioning conical surface.
By adopting the technical scheme, the movable sleeve is fixed on the tray, the movable sleeve is convenient to process, the movable sleeve can be installed only by opening the hole on the tray, and the locking hole matched with the locking steel ball does not need to be processed independently.
Further, including detecting the gas circuit, the one end that detects the gas circuit is located the lateral surface of cylinder body, and the other end is located the top of cylinder body.
Through adopting above-mentioned technical scheme, it can be connected with airtight detection device to detect the gas circuit for whether the tray is installed in place, detects the pressure rise of gas circuit when the tray blocks up the tip of the detection gas circuit at cylinder body top, consequently can confirm through pressure sensor whether the tray is installed in place.
Compared with the prior art the utility model discloses following beneficial effect has:
the utility model provides a quick positioner of oil pressure repeated positioning accuracy is high, can press from both sides tight tray, tray installation fast, convenient fast.
Drawings
FIG. 1 is a perspective view of an oil pressure quick positioning device;
FIG. 2 is a cross-sectional view of the oil pressure quick positioner;
FIG. 3 is a cross-sectional view of the oil hydraulic quick positioner mounted to the pallet and taken generally;
FIG. 4 is a front view of the cylinder block;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;
FIG. 6 is a cross-sectional view taken along line B-B of FIG. 4;
FIG. 7 is a cross-sectional view taken along line C-C of FIG. 4;
FIG. 8 is a cross-sectional view of the positioning cone ring;
FIG. 9 is a front view of the drawbar;
fig. 10 is a cross-sectional view of the active sheath.
Detailed Description
The present invention will now be further described with reference to the accompanying drawings.
Example one
As shown in fig. 1 to 10, the oil pressure quick positioning device comprises a plurality of locking steel balls 2 and a cylinder 3, wherein a positioning sleeve 31 is arranged at the top of the cylinder 3, a plurality of steel ball holes 32 are formed in the outer circumferential surface of the positioning sleeve 31, the locking steel balls 2 are movably inserted into the steel ball holes 32, and a lifting hole 33 is formed in the bottom of the cylinder 3; the pull rod 8 is inserted into the positioning sleeve 31 in a sliding manner, a steel ball groove 81 is formed in the top of the pull rod 8, a pressing surface 82 is arranged on one side of the steel ball groove 81, the locking steel ball 2 is located in the steel ball groove 81, the pressing surface 82 is used for pressing part of the locking steel ball 2 to protrude out of the outer circular surface of the positioning sleeve 31 when the locking steel ball 2 is pressed, and the locking steel ball 2 can retract into the positioning sleeve 31 when the locking steel ball 2 is opposite to the steel ball groove 81; the piston 7 is inserted into the lifting hole 33 in a sliding manner, and the bottom of the pull rod 8 is connected with the piston 7; the pressing device is arranged between the piston 7 and the cylinder 3 and is used for pressing the pressing surface 82 on the locking steel ball 2; the outer side of the positioning conical ring 6 is provided with a conical first positioning conical surface 62, and the positioning conical ring 6 is inserted on the positioning sleeve 31 in a sliding manner; and the elastic device is arranged between the positioning conical ring 6 and the cylinder body 3 and is used for jacking the positioning conical ring 6.
The oil groove 104 is started on the base plate 102, the piston 7 is located in the oil groove 104, the piston 7 is jacked up when the oil is fed into the oil groove 104, the piston 7 descends under the action of the pressing device when the oil is discharged from the oil groove 104, the piston 7 drives the pull rod 8 to descend, the pressing surface 82 on the pull rod 8 presses the locking steel ball 2 on the steel ball hole 32, so that part of the locking steel ball 2 protrudes out of the outer circular surface of the positioning sleeve 31, the locking hole on the tray 101 is locked, and the tray 101 is prevented from falling off.
The positioning conical ring 6 is inserted into a hole in the bottom of the tray 101, so that the tray 101 is positioned, and the elastic device is used for pressing the positioning conical ring 6 between the tray 101 and the positioning sleeve 31, so that the positioning precision is improved.
And finally, the hole opening of the steel ball hole 32 is locked to form a cone, so that the locking steel ball 2 is limited in the steel ball hole 32, and the locking steel ball 2 is prevented from falling off. When leaving the factory, the steel ball fixing ring is sleeved on the positioning sleeve 31 for preventing the locking steel ball 2 from falling off.
The steel ball groove 81 is an annular groove, and the pressing surface 82 is a conical surface. The annular steel ball groove 81 is convenient to assemble and machine.
The pressing device comprises a pressing spring, the pressing spring is positioned in the lifting hole 33, one end of the pressing spring is pressed at the bottom of the lifting hole 33, and the other end of the pressing spring is pressed on the piston 7.
Specifically, the hold-down spring is belleville spring 55, and belleville spring 55 is equipped with a plurality ofly, and a plurality of belleville springs 55 positive and negative crisscross installation, and set up along the axis of pull rod 8. The belleville springs 55 have high rigidity, strong buffering and vibration absorbing capacity and small deformation and bear large load.
The elastic device comprises a plurality of jacking springs 52, and the jacking springs 52 are annularly arranged around the axis of the positioning sleeve 31 at equal intervals.
Specifically, the top of the cylinder 3 is provided with a first annular groove 35, the first annular groove 35 is arranged around the outer circular surface of the positioning sleeve 31, the bottom of the first annular groove 35 is provided with eight spring holes 36, the eight spring holes 36 are arranged around the axis of the positioning sleeve 31 in an annular array, the jacking springs 52 are located in the spring holes 36, and the bottom of the positioning conical ring 6 is located in the first annular groove 35 and presses on the jacking springs 52.
The center of the piston 7 is provided with a second sliding hole, the top of the piston 7 is provided with a spring groove 71, the spring groove 71 is an annular groove, and part of the belleville spring 55 is positioned in the spring groove 71.
The bottom of the pull rod 8 is provided with a limiting ring 84, the diameter of the limiting ring 84 is larger than that of the second sliding hole, the pull rod 8 is inserted into the second sliding hole in a sliding manner, the limiting ring 84 is located at the bottom of the piston 7, and the piston 7 drives the pull rod 8 to descend through the limiting ring 84.
The cylinder body 3 is also provided with an oil filling hole 34, the oil filling hole 34 is communicated with the lifting hole 33, and the oil filling hole 34 is used for adding lubricating oil.
As shown in fig. 10, the locking device further comprises a movable sleeve 1, wherein the movable sleeve 1 is provided with a positioning hole 11, the top of the positioning hole 11 is provided with a locking conical surface 13, the bottom of the positioning hole 11 is provided with a second positioning conical surface 12, the locking steel ball 2 is tightly pressed on the locking conical surface 13, and the second positioning conical surface 12 is matched with the first positioning conical surface 62.
The movable sleeve 1 is fixed on the mounting hole 105 of the tray 101, the movable sleeve 1 is convenient to process, the movable sleeve 1 is mounted on the tray 101 only by punching, and a locking hole matched with the locking steel ball 2 does not need to be processed independently.
The positioning sleeve 31 is provided with a clamp spring 5, the clamp spring 5 is positioned above the positioning conical ring 6, and the clamp spring 5 prevents the positioning conical ring 6 from being separated from the positioning sleeve 31.
When the piston type oil-gas separating device is used, an oil groove 104 is machined in the base plate 102, the piston 7 is slidably inserted into the oil groove 104 and sealed through the sealing ring 53, the cylinder body 3 is fixed to the top of the base plate 102, and the movable sleeve 1 is fixed to the bottom of the tray 101. The bottom of the oil groove 104 is provided with an oil hole 103, when oil enters the oil hole 103, the pressure applied to the bottom of the piston 7 by hydraulic oil is greater than the pressure of the belleville spring 55, the piston 7 and the pull rod 8 synchronously rise, the pressing surface 82 on the pull rod 8 rises, the locking steel ball 2 is loosened by the pressing surface 82, the locking steel ball 2 can retract into the steel ball groove 81 under the action of external force, at the moment, the tray 101 or the mounting tray 101 can be dismounted, after the movable sleeve 1 on the tray 101 is inserted onto the positioning sleeve 31, the electromagnetic valve can be switched to enable the oil hole 103 to discharge oil, the piston 7 descends under the action of the belleville spring 55, the piston 7 drives the pull rod 8 to descend, the pressing surface 82 on the pull rod 8 is pressed on the locking steel ball 2 again, part of the locking steel ball 2, which protrudes out of the outer circular surface of the positioning sleeve 31, is.
When the movable sleeve 1 is inserted into the positioning sleeve 31, the second positioning conical surface 12 of the movable sleeve 1 contacts with the first positioning conical surface 62 of the positioning conical ring 6, and the jacking spring 52 enables the positioning conical ring 6 to be tightly pressed on the movable sleeve 1, so that the positioning sleeve 31 is overlapped with the axis of the movable sleeve 1, and high-precision positioning is realized. The jacking spring 52 jacks up the positioning conical ring 6 to eliminate the gap between the first positioning conical surface 62 and the second positioning conical surface 12, so that the positioning accuracy is ensured.
Example two
In addition to the first embodiment, as shown in fig. 8, the positioning conical ring 6 is provided with an expansion groove 61, and the expansion groove 61 is a through groove. The telescopic groove 61 enables the positioning conical ring 6 to expand or contract, and the jacking spring 52 presses the positioning conical ring 6 between the tray 101 and the positioning sleeve 31, so that high-end precise positioning is realized.
The jacking spring 52 presses the positioning conical ring 6 on the positioning sleeve 31 and the movable sleeve 1, namely the jacking spring 52 presses the inner circular surface of the positioning conical ring 6 on the outer circular surface of the positioning sleeve 31, presses the first positioning conical surface 62 of the positioning conical ring 6 on the second positioning conical surface 12 of the movable sleeve 1, completely eliminates gaps, realizes the coincidence of the axis of the positioning sleeve 31 and the axis of the movable sleeve 1, thereby realizing the high-precision positioning of the positioning sleeve 31 and the movable sleeve 1, the repeated positioning precision reaches 0.005mm, and the positioning conical ring 6 provided with the telescopic groove 61 can absorb the positioning error of each group of movable sleeve 1 and positioning sleeve 31; errors caused by abrasion of a positioning part due to long-term use can be absorbed; the precision error of the distance between the mounting holes can be absorbed; variations in accuracy errors in hole pitch due to temperature variations can be absorbed.
EXAMPLE III
On the basis of any one of the above embodiments, as shown in fig. 4 to 6, the air-blowing and air-intake device further includes an air-blowing and air-intake path 37, wherein one end of the air-blowing and air-intake path 37 is located on the outer side surface of the cylinder 3, and the other end of the air-blowing and air-intake path 37 is located inside the positioning sleeve 31; the blowing and communicating air path 83 is arranged, one end of the blowing and communicating air path 83 is positioned on the outer circular surface of the pull rod 8 and is communicated with the other end of the blowing and air inlet air path 37, and the other end of the blowing and communicating air path 83 is positioned at the top of the pull rod 8; the top of the positioning sleeve 31 is provided with a plurality of blow holes 91.
The air blowing hole 91 can remove scrap iron, cutting fluid and other dirt on the top of the positioning sleeve 31.
Example four
On the basis of the third embodiment, the positioning device further comprises a top plug 9, the top plug 9 is movably inserted into the top of the positioning sleeve 31, a plurality of air blowing holes 91 are formed in the top plug 9, and the air blowing holes 91 are arranged in an annular array around the axis of the top plug 9; a first spring 54, wherein the first spring 54 is positioned between the top plug 9 and the pull rod 8; when the top plug 9 is pressed on the top of the pull rod 8 and the piston 7 are both at the highest position, the top surface of the top plug 9 and the air blowing hole 91 are both higher than the top surface of the positioning sleeve 31.
The first spring 54 keeps the top plug 9 in an extended state and does not interfere with the installation of the tray 101. The air blowing hole 91 can remove scrap iron, cutting fluid and other dirt on the top of the positioning sleeve 31, and accurate positioning is guaranteed.
When pull rod 8 is in the highest state that rises, pull rod 8 will push up stopper 9 jack-up, push up stopper 9 pushes up in the bottom of tray 101's mounting hole 105, leave the clearance between second location conical surface 12 and the first location conical surface 62 this moment, the compressed air of being convenient for passes through, thereby realize the cleanness of first location conical surface 62 and second location conical surface 12, effectively get rid of smear metal and cutting fluid, guarantee positioning accuracy, simultaneously can also prevent to collide with when tray 101 inserts and arouse the damage of first location conical surface 62 and second location conical surface 12, and then guarantee the high accuracy. When the pull rod 8 begins to descend, the top plug 9 descends along with the pull rod, the first positioning conical surface 62 is in close contact with the second positioning conical surface 12 before the locking steel ball 2 is pressed by the pressing surface 82, and the top plug 9 does not affect locking.
EXAMPLE five
On the basis of any one of the above embodiments, a detection air passage 38 is included, one end of the detection air passage 38 is located on the outer side surface of the cylinder 3, and the other end is located on the top of the cylinder 3.
The detection air passage 38 may be connected to an air tightness detection device for detecting whether the tray 101 is installed in place, and when the tray 101 or the movable sleeve 1 blocks the outlet of the detection air passage 38 at the top of the cylinder 3, the pressure of the detection air passage 38 is increased, so that whether the tray 101 is installed in place can be confirmed by the pressure sensor.
The quick oil pressure positioning device can realize instantaneous positioning and clamping, the repeated positioning precision is 0.005mm, and the high-precision repeated positioning function does not need to carry out the positioning precision inspection of a clamp on processing equipment such as a machine tool. The application can be used to select the appropriate clamping force. The oil pressure quick positioning device also has an air cleaning function and a sitting confirmation function. The oil pressure quick positioning device effectively removes foreign matters such as cutting chips and the like through an air cleaning function, and ensures precise positioning precision. The air tightness detection device matched with the oil pressure quick positioning device can realize seat confirmation, improve clamping operation and improve production efficiency. The oil pressure quick positioning device can realize high-precision repeated positioning and clamping, does not need to be fixed and checked for precision, and can realize quick and simple replacement of the tray 101 or the clamp. The operation rate of the equipment is improved by external clamping. The oil pressure quick positioning device can quickly replace the tray 101 or the clamp outside the machine, thereby greatly shortening the shutdown time. The tray 101 is universal and is most suitable for multi-variety small-batch production.
Claims (10)
1. The oil pressure quick positioning device comprises a plurality of locking steel balls and is characterized by also comprising
The locking device comprises a cylinder body, wherein the top of the cylinder body is provided with a positioning sleeve, the outer circular surface of the positioning sleeve is provided with a plurality of steel ball holes, locking steel balls are movably inserted into the steel ball holes, and the bottom of the cylinder body is provided with a lifting hole;
the pull rod is slidably inserted into the positioning sleeve, a steel ball groove is formed in the top of the pull rod, a pressing surface is arranged on one side of the steel ball groove, the locking steel ball is located in the steel ball groove, part of the locking steel ball protrudes out of the outer circular surface of the positioning sleeve when the pressing surface is used for pressing the locking steel ball, and the locking steel ball can be retracted into the positioning sleeve when the locking steel ball is opposite to the steel ball groove;
the piston is inserted into the lifting hole in a sliding mode, and the bottom of the pull rod is connected with the piston;
the pressing device is arranged between the piston and the cylinder body and is used for pressing the pressing surface on the locking steel ball;
the outer side of the positioning conical ring is provided with a conical first positioning conical surface, and the positioning conical ring is inserted on the positioning sleeve in a sliding manner;
and the elastic device is arranged between the positioning conical ring and the cylinder body and is used for jacking the positioning conical ring.
2. The oil pressure quick positioning device as claimed in claim 1, wherein the steel ball groove is an annular groove, and the pressing surface is a conical surface.
3. The oil pressure quick positioning device as claimed in claim 1, wherein the pressing means comprises a pressing spring, the pressing spring is located in the lifting hole, one end of the pressing spring presses against the bottom of the lifting hole, and the other end presses against the piston.
4. The oil pressure quick positioning device as claimed in claim 3, wherein the hold-down spring is a plurality of belleville springs, and the belleville springs are installed in a staggered manner in the front and back direction and are arranged along the axis of the pull rod.
5. The quick positioning device for oil pressure as claimed in claim 1, wherein the positioning cone ring is provided with a telescopic slot, and the telescopic slot is a through slot.
6. The oil pressure quick positioning device as claimed in claim 1, wherein the elastic means comprises a plurality of jacking springs which are annularly arranged at equal intervals around the axis of the positioning sleeve.
7. The oil pressure quick positioning device according to claim 1, further comprising an air blowing and air inlet path, wherein one end of the air blowing and air inlet path is located on the outer side surface of the cylinder body, and the other end of the air blowing and air inlet path is located inside the positioning sleeve;
one end of the air blowing communicating air passage is positioned on the outer circular surface of the pull rod and is communicated with the other end of the air blowing air inlet air passage, and the other end of the air blowing communicating air passage is positioned at the top of the pull rod;
and a plurality of air blowing holes are formed in the top of the positioning sleeve.
8. The quick oil pressure positioning device as claimed in claim 7, further comprising a top plug movably inserted into the top of the positioning sleeve, the top plug being provided with a plurality of blow holes annularly arranged around the axis of the top plug;
the first spring is positioned between the top plug and the pull rod;
and when the top plug is tightly pressed on the top of the pull rod and the piston are both positioned at the highest positions, the top surface of the top plug and the air blowing hole are both higher than the top surface of the positioning sleeve.
9. The oil pressure quick positioning device according to claim 1, further comprising a movable sleeve, wherein the movable sleeve is provided with a positioning hole, the top of the positioning hole is provided with a locking conical surface, the bottom of the positioning hole is provided with a second positioning conical surface, the locking steel ball is pressed on the locking conical surface, and the second positioning conical surface is matched with the first positioning conical surface.
10. The oil pressure quick positioning device according to claim 1 or 9, comprising a detection air passage, wherein one end of the detection air passage is located on the outer side surface of the cylinder body, and the other end of the detection air passage is located on the top of the cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922415134.0U CN211728428U (en) | 2019-12-28 | 2019-12-28 | Oil pressure quick positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922415134.0U CN211728428U (en) | 2019-12-28 | 2019-12-28 | Oil pressure quick positioning device |
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| Publication Number | Publication Date |
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| CN211728428U true CN211728428U (en) | 2020-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922415134.0U Active CN211728428U (en) | 2019-12-28 | 2019-12-28 | Oil pressure quick positioning device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111015313A (en) * | 2019-12-28 | 2020-04-17 | 无锡市瑞可特科技有限公司 | Oil pressure quick positioning device |
| CN115095589A (en) * | 2022-06-22 | 2022-09-23 | 四川航天长征装备制造有限公司 | Connecting pin |
-
2019
- 2019-12-28 CN CN201922415134.0U patent/CN211728428U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111015313A (en) * | 2019-12-28 | 2020-04-17 | 无锡市瑞可特科技有限公司 | Oil pressure quick positioning device |
| CN115095589A (en) * | 2022-06-22 | 2022-09-23 | 四川航天长征装备制造有限公司 | Connecting pin |
| CN115095589B (en) * | 2022-06-22 | 2023-06-02 | 四川航天长征装备制造有限公司 | Connecting pin |
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