CN202507175U - Axial elastic accurate positioning and clamping device for needle valve body part - Google Patents
Axial elastic accurate positioning and clamping device for needle valve body part Download PDFInfo
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- CN202507175U CN202507175U CN2012201251785U CN201220125178U CN202507175U CN 202507175 U CN202507175 U CN 202507175U CN 2012201251785 U CN2012201251785 U CN 2012201251785U CN 201220125178 U CN201220125178 U CN 201220125178U CN 202507175 U CN202507175 U CN 202507175U
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- 230000000670 limiting effect Effects 0.000 claims abstract description 22
- 230000008676 import Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 19
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 10
- 230000005611 electricity Effects 0.000 description 18
- 210000001503 joint Anatomy 0.000 description 10
- 238000012545 processing Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000003754 machining Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 208000001840 Dandruff Diseases 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000013401 experimental design Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model relates to an axial elastic accurate positioning and clamping device for a needle valve body part. An expansion outer guide sleeve (24) is fixedly connected with the output end of a rotating shaft sleeve (23); an executing sleeve (25) is sleeved in an inner hole of the expansion outer guide sleeve (24), is in clearance fit with the expansion outer guide sleeve (24) and is fixedly connected with the stretching end of a piston rod (31); a self-centering expansion sleeve (26) is sleeved in an inner hole of the executing sleeve (25); an axial elongated slot is formed on the executing sleeve (25); the self-centering expansion sleeve (26) and the expansion outer guide sleeve (24) are axially fixed through a fixing pin (28); the fixing pin (28) is positioned in the axial elongated slot on the executing sleeve (25); an elastic axial limiting structure (27) is arranged in an inner hole of the self-centering expansion sleeve (26), is positioned on one side of the inlet of a needle valve body (50) and is axially limited by the fixing pin (28); the piston rod (31) can be sleeved in a central hole of the rotating shaft sleeve (23) in an axial sliding mode; and the needle valve body is accurately axially limited by the elastic axial limiting structure and telescopically clamped by the executing sleeve when fed into the inner hole of the self-centering expansion sleeve, and the self-centering expansion sleeve is axially fixed in the clamping process, so that the distance between each of two frequency conversion electric spindles and an end face to be machined is ensured, the high accuracy of axial dimensions from a butting end face of the needle valve body to an oil outlet conical surface can be accurately controlled, and the perpendicularity of the butting end face relative to a valve needle hole reference can be ensured.
Description
Technical field:
The utility model relates to the axle sleeve class part processing equipment of even part valve body in the oil pump nozzle atomizer, relates in particular to high accuracy axle sleeve class part end face process equipment.
Background technology:
High accuracy axle sleeve class part all has application in all kinds of machineries, the designing requirement of some part is very high, can't satisfy processing request with conventional process equipment.
Fig. 1 is the structural representation of the high pressure common rail injector assembly of company of German Bosch (Bosch) production; It comprises magnetic valve, magnetic valve spring adjustment packing ring, magnetic valve spring, grommet, the very tight cap of electromagnetism, control valve coupling, valve module, orifice plate alignment pin, sealing ring, the spring seat of honour, adjustment pad, pressure spring, push rod, transition block, oil nozzle alignment pin, injector nozzle matching parts, nozzle cap nut, goes up sealing ring and injector nozzle matching parts; Wherein, Injector nozzle matching parts is made up of needle-valve body and needle-valve; Needle valve hole precision on needle-valve and the needle-valve body is slidingly matched, and realizes fuel feeding or closes through needle-valve moving axially in needle-valve body.Because the operating pressure of high pressure common rail injector is up to 1600Pa, and be tightly connected through the plane docking mode between injector nozzle matching parts and the assembly, if the machining accuracy of interface does not reach designing requirement; Gently then the seepage pressure release can occur, can cause between the needle valve hole of needle and needle-valve body the generation jam when serious or kill phenomenon, therefore; The processing precision direct influence of needle-valve body is to the performance indications of high pressure common rail injector; The structure of needle-valve body is as shown in Figure 2, and wherein, the design accuracy of butt joint end face 53 requires high; Flatness is 0.0008 millimeter, and linearity does
Millimeter is merely 0.012 millimeter with respect to the perpendicularity of needle valve hole benchmark A, and surface roughness is 0.05 millimeter, and butt joint end face 53 is 39.6 to three axial dimensions of the fuel-displaced conical surface
-0.08, 40.23
-0.01With 42.1
+ 0.05If therefore butt joint end face machining accuracy does not reach the design accuracy requirement; Charge oil pressure deficiency, injector nozzle matching parts jam, distributive value shakiness will appear in high pressure common rail injector; Directly have influence on the power output of diesel engine, can cause the whole high-pressure common rail injection system can't operate as normal when serious.Hence one can see that, and the processing of the butt joint end face of needle-valve body is very important, and can it be high pressure common rail injector one of the key technology of producing that domesticize.
At present; The end face processing of scrappy of high accuracy axle sleeve class that is similar to the needle-valve body of fuel injector all is the cylindrical location with needle-valve body; Roughly grind, the grinding of correct grinding and super grinding three process substep; The clamping of needle-valve body is identical with the processing mode of domestic oil pump nozzle idol part, all is to utilize self-centering ringfeder shown in Figure 3 to clamp, and workpiece can move axially with ringfeder when ringfeder tightens up; Needle-valve body is not axially having stable positioning reference, three axial dimension precision 39.6 of resulting control distributive value behind the butt joint cross grinding
-0.08, 40.23
-0.01With 42.1
+ 0.05Be difficult to reach designing requirement, poor stability.Needle-valve body need be installed respectively three times in grinding process simultaneously, has alignment error, and it is overproof with respect to the perpendicularity of needle valve hole benchmark A to cause docking end face 53 easily; The grinding of butt joint end face 53 all is that general high-speed grinding head is accomplished, and flatness, linearity and the surface roughness of butt joint end face 53 do not reach requirement sometimes yet; Such processing technology and grinding equipment not only non-cutting time many, and yield rate is lower.
Can know through above-mentioned objective analysis; In the existing diesel high pressure common rail injector; The butt joint end face grinding technique design of needle-valve body is unreasonable, comes crudy unstable with existing cylindrical grinder, and especially the installing and locating mode of needle-valve body is unreasonable; The clamping of part is axially being unified positioning reference, repeatedly installs to clamp to have not coincidence error.This is one of key technology difficult problem that influences the production domesticization of diesel engine high-pressure co-rail fuel injector.
In order to overcome the above-mentioned deficiency that exists in the processing of existing diesel high pressure common rail injector needle-valve body; Produce homemade diesel engine high-pressure co-rail oil spout with independent intellectual property right more economically, the applicant through conscientious research with experimental design needle-valve body end face ultraprecise process grinding machine.It can carry out once mounting to high pressure common rail injector needle-valve body end face, the substep grinding, and wherein, the accurate positioning clamping device of needle-valve body is a critical component.
The utility model content:
The purpose of the utility model provides the accurate positioning clamping device of a kind of needle-valve body class part axial elasticity, and it can make needle-valve body axially and radially precisely locate also reliable grip.
The technical scheme that the utility model is taked is following:
The accurate positioning clamping device of a kind of needle-valve body class part axial elasticity; Comprise rotary sleeve, tensioner outer bush, execution set, self-centering ringfeder, elastic shaft to position limiting structure, steady pin and piston rod, the tensioner outer bush is fixedly connected with the output of rotary sleeve, and execution set is sleeved in the endoporus of tensioner outer bush; Be matched in clearance between the two; Execution set is fixedly connected with the external part of piston rod, and the self-centering ringfeder is sleeved in the endoporus of execution set, on execution set, is provided with axial elongated slot; Carry out axial restraint by steady pin between self-centering ringfeder and the tensioner outer bush, steady pin is positioned at the axial elongated slot on the execution set; Elastic shaft is arranged in the endoporus of self-centering ringfeder to position limiting structure, and is positioned at needle-valve body import one side, and by the steady pin axial limiting; Piston rod can be sleeved in the rotary sleeve centre bore axially slidably.
Further, said elastic shaft is made up of fixing spring seat, spring and mobile spring seat to position limiting structure, and the fixing spring seat is identical with the mobile spring holder structure; One end is a planar ends, and the other end is provided with and the corresponding pit of spring, and fixing spring seat and mobile spring seat symmetrical line are provided with; Spring is arranged between fixing spring seat and the mobile spring seat; The planar ends of fixing spring seat contacts with steady pin, and the pit face contacts with spring, and the mobile spring seat is corresponding with needle-valve body to be processed.
When needle-valve body to be processed is delivered in the endoporus of self-centering ringfeder by pneumatic discharge apparatus; Needle-valve body is received by the mobile spring seat buffering of elastic shaft in position limiting structure earlier; Slowly near the fixing spring seat, spring is compressed then, when mobile spring seat and fixing spring seated connection after touch needle-valve body axially obtain precisely spacing; Driving execution set by piston rod then moves right; The self-centering ringfeder is radially clamping needle-valve body, in clamping process, be fixedly connected with the tensioner outer bush owing to the self-centering ringfeder passes through steady pin, so the self-centering ringfeder is motionless at axial restraint; So just guarantee correct grinding frequency conversion electricity main shaft and super grinding frequency conversion electricity main shaft distance with respect to needle-valve body end face to be processed when extreme position, thereby can accurately control three high accuracy axial dimension precision 39.6 that the butt joint end face of waiting to add needle-valve body arrives the fuel-displaced conical surface
-0.08, 40.23
-0.01With 42.1
+ 0.05The butt joint end face also can be guaranteed with respect to the perpendicularity of needle hole benchmark A.In addition, needle-valve body to be processed is as long as clamping can be accomplished the fine finishining and the microstoning of end face, and not only machining accuracy is guaranteed, and production efficiency is improved, and it is a key equipment of realizing the high pressure common rail injector production domesticization.
Description of drawings:
Fig. 1 is the structural representation of the needle-valve body of high pressure common rail injector;
Fig. 2 is that needle-valve body is installed the structural representation that clamps in the present technology;
The needle-valve body that Fig. 3 designs for the applicant docks the structural representation of face grinding machine;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is the structural representation of the utility model;
Fig. 6 is a kind of structural representation of elastic shaft to position limiting structure;
Fig. 7 is the structural representation of pneumatic material-pulling device.
Among the figure, the 1-lathe bed; The accurate positioning clamping device of 2-needle-valve body axial elasticity; 3-workpiece motor; The pneumatic material-pulling device of 4-; 5-correct grinding frequency conversion electricity main shaft; 6-super grinding frequency conversion electricity main shaft; The vertical slide unit of 7-; The horizontal slide unit of 8-; 9-servo longitudinal motor; The horizontal servomotor of 10-; The 21-supporting seat; The 22-base bearing; The 23-rotary sleeve; 24-tensioner outer bush; The 25-execution set; 26-self-centering ringfeder; The 27-elastic shaft is to position limiting structure; The 28-steady pin; The 29-screw; The 30-bearing (ball) cover; The 31-piston rod; 32-major axis cover; The 33-driving wheel; The 34-cylinder block; 35-cylinder journal bearing; The 36-mainshaft nut; The 37-piston; The 38-piston unt; 39-end face bearing; The 40-short sleeve; The 41-feeding cylinder; The 42-feed ram; The 43-feeding rod; 44 vertical screw mandrels; The 45-cross lead screw; The 46-chute feeder.The 50-needle-valve body; 51-needle hole; The 52-conical surface; 53-docks end face; 54-locatees cylindrical; 271-fixing spring seat; The 272-spring; 273-mobile spring seat.
The specific embodiment:
Specify the specific embodiment of the utility model below in conjunction with accompanying drawing.
The accurate positioning clamping device of a kind of needle-valve body class part axial elasticity; As shown in Figure 5; It comprises that supporting seat 21, base bearing 22, rotary sleeve 23, tensioner outer bush 24, execution set 25, self-centering ringfeder 26, elastic shaft are to position limiting structure 27, steady pin 28, screw 29, bearing (ball) cover 30, piston rod 31, major axis cover 32, driving wheel 33, cylinder block 34, cylinder journal bearing 35, mainshaft nut 36, piston 37, piston unt 38, end face bearing 39 and short sleeve 40; Rotary sleeve 23 is installed in the supporting seat 21 through base bearing 22; Major axis cover 32 is arranged between two base bearings 22, and is spacing by bearing (ball) cover 30 in the outside of two base bearings 22; Tensioner outer bush 24 is fixedly connected with the output of rotary sleeve 23; Execution set 25 is sleeved in the endoporus of tensioner outer bush 24, is matched in clearance between the two, and execution set 25 is fixedly connected with the external part of piston rod 31; Self-centering ringfeder 26 is sleeved in the endoporus of execution set 25; On execution set 25, be provided with axial elongated slot, carry out axial restraint by steady pin 28 between self-centering ringfeder 26 and the tensioner outer bush 24, steady pin 28 is positioned at the axial elongated slot on the execution set 25; Elastic shaft is arranged in the endoporus of self-centering ringfeder 26 to position limiting structure 27, and is positioned at needle-valve body import one side, and by steady pin 28 axial limitings; Driving wheel 33 is installed on the rotary sleeve 23; And carry out axial restraint through short sleeve 40, cylinder journal bearing 35 and mainshaft nut 36, and piston rod 31 can be sleeved in rotary sleeve 23 centre bores axially slidably, and cylinder block 34 is installed on the rotary sleeve 23 through cylinder journal bearing 35; Piston 37 is sleeved on the piston rod 31; Be provided with plane bearing 39 at the two ends of piston 37, and by piston unt 38 axial restraints, cylinder block 34 is fixed on the lathe bed 1; Said elastic shaft is as shown in Figure 6 to position limiting structure 27; Be made up of fixing spring seat 271, spring 272 and mobile spring seat 273, fixing spring seat 271 is identical with mobile spring seat 273 structures, and an end is a planar ends; The other end is provided with and spring 272 corresponding pits; Fixing spring seat 271 and the 273 symmetrical line settings of mobile spring seat, spring 272 is arranged between fixing spring seat 271 and the mobile spring seat 273, and the planar ends of fixing spring seat 271 contacts with steady pin 28; The pit face contacts with spring 272, and mobile spring seat 273 is corresponding with needle-valve body to be processed.
In the needle-valve body end face ultraprecise processing grinding machine of the high pressure common rail injector that the applicant designs, just use the utility model; The structure of this grinding machine such as Fig. 3, shown in Figure 4; It comprises the accurate positioning clamping device of lathe bed 1, needle-valve body axial elasticity 2, workpiece motor 3, pneumatic material-pulling device 4, correct grinding frequency conversion electricity main shaft 5, super grinding frequency conversion electricity main shaft 6, vertically slide unit 7, laterally slide unit 8, servo longitudinal motor 9 and horizontal servomotor 10; The accurate positioning clamping device 2 of needle-valve body is fixedly mounted on the lathe bed 1; Laterally slide unit 8 is arranged on the lathe bed 1; Cooperate through line slideway between the two, laterally realize the linear slide of horizontal slide unit 8 through leading screw and nut mechanism between slide unit 8 and the lathe bed 1 with respect to lathe bed 1; Vertically slide unit 7 is fixed on the horizontal slide unit 8, cooperates through line slideway between the two, vertically realizes the linear slide of vertical slide unit 7 with respect to horizontal slide unit 8 through leading screw and nut mechanism between slide unit 7 and the horizontal slide unit 8; Pneumatic material-pulling device 4, correct grinding frequency conversion electricity main shaft 5 and super grinding frequency conversion electricity main shaft 6 all are fixedly mounted on vertical slide unit 7; Three's distribution scheme is; The axis of pneumatic material-pulling device 4, correct grinding frequency conversion electricity main shaft 5 and super grinding frequency conversion electricity main shaft 6 all is in the same horizontal plane; Correct grinding frequency conversion electricity main shaft 5 and super grinding frequency conversion electricity main shaft 6 are arranged on the both sides of pneumatic material-pulling device 4; Three's axis is parallel to each other, and servo longitudinal motor 9 drives vertical slide unit 7 through leading screw and nut mechanism, and laterally servomotor 10 drives horizontal slide unit 8 through leading screw and nut mechanism; Clamping head in the accurate positioning clamping device 2 of workpiece motor 3 driving needle valve bodies, the axis of the axis of clamping head and pneumatic material-pulling device 4, correct grinding frequency conversion electricity main shaft 5 and super grinding frequency conversion electricity main shaft 6 all is in the same horizontal plane in the accurate positioning clamping device 2 of needle-valve body.
Said pneumatic material-pulling device 4 is as shown in Figure 7; It comprises feeding cylinder 41, feed ram 42, feeding rod 43, vertical screw mandrel 44, cross lead screw 45 and chute feeder 46, and feeding cylinder 41 is installed on vertical slide unit 7, vertically is being provided with pilot hole on the slide unit 7; Feed ram 42 is positioned at feeding cylinder 41; Feeding rod 43 is fixed on the feed ram 42, and for accurate moving cooperates, chute feeder 46 is fixedly mounted on vertical slide unit 7 between the pilot hole on feeding rod 43 and the vertical slide unit 7; Chute feeder 46 is arranged on the front end of feeding rod 43, and the dead in line of the bottom circle central axis of chute feeder 46 and feeding rod 43.
In this special purpose grinder, the bottom circle central axis of chute feeder 46 and the dead in line of feeding rod 43, and the axis of feeding rod 43 must with the dead in line of self-centering ringfeder 26 in the accurate positioning clamping device 2 of needle-valve body.Owing to be provided with the mandrel section that matches with the needle hole 51 of needle-valve body 50 at the external part of feeding rod 43; Needle-valve body 50 to be processed is fallen the bottom land circular arc from chute feeder 46; Needle-valve body to be processed is sent in the centre bore of self-centering ringfeder 26 by feeding rod 43; Needle-valve body 50 to be processed axially by elastic shaft to position limiting structure 27 buffering and accurate axial limiting, guarantee the uniformity of needle-valve body 50 axial machining benchmarks to be processed, when elastic shaft to position limiting structure 27 accomplish treat machined needles valve body 50 and axially accurately locate after; Workpiece in the accurate positioning clamping device 2 of control needle-valve body clamps cylinder; Its piston 37 is moved right, drive execution set 25 and move right, thereby the clamping of machined needles valve body 50 is treated in realization; By the control system of lathe to workpiece motor 3, correct grinding frequency conversion electricity main shaft 5, super grinding frequency conversion electricity main shaft 6, servo longitudinal motor 9, laterally servomotor 10, feeding cylinder and workpiece clamp cylinder and move control, make the requirement of their processing technologys carry out sequentially-operating:
In off working state, the piston rod that workpiece clamps cylinder is in contraction state, and the feeding rod of feeding cylinder also is in contraction state.
The job order action is: feeding cylinder action, self-feeding; After needle-valve body 50 to be processed is sent in the centre bore of self-centering ringfeder 26; Treat that machined needles valve body 50 cushions and axially accurately spacing by elastic shaft to position limiting structure 27; Workpiece cylinder action then; Execution set 25 outwards stretches with piston rod 31, forces the location cylindrical 54 of self-centering ringfeder 26 clamping needle valve bodies 50, and the reverse withdrawal of feeding cylinder this moment resets; Laterally servomotor 10 actions stop 9 actions of servo longitudinal motor after making horizontal slide unit 8 be moved to the left extreme position; The end face that makes correct grinding frequency conversion electricity main shaft 5 and super grinding frequency conversion electricity main shaft 6 treat the machined needles valve body successively finish grindes with super grinding to be processed; Vertical slide unit 7 resets after the process finishing, and laterally slide unit 8 resets workpiece clamp cylinder counteragent; Execution set 25 is moved to the left; Self-centering ringfeder 26 unclamps, and the needle-valve body that processes ejects under the elastic force effect of position limiting structure 27 at elastic shaft automatically, accomplishes a fabrication cycles.
In this example; Be to be that example is explained with the needle-valve body end face in the grinding high pressure common rail injector; For other process equipment; Other part of high accuracy that perhaps is similar to needle-valve body all is suitable for, as long as use the location of the utility model to clamp technical scheme all within the protection domain of the utility model.
Claims (2)
1. accurate positioning clamping device of needle-valve body class part axial elasticity; It is characterized in that: comprise that rotary sleeve (23), tensioner outer bush (24), execution set (25), self-centering ringfeder (26), elastic shaft are to position limiting structure (27), steady pin (28) and piston rod (31); Tensioner outer bush (24) is fixedly connected with the output of rotary sleeve (23); Execution set (25) is sleeved in the endoporus of tensioner outer bush (24), is matched in clearance between the two, and execution set (25) is fixedly connected with the external part of piston rod (31); Self-centering ringfeder (26) is sleeved in the endoporus of execution set (25); On execution set (25), be provided with axial elongated slot, carry out axial restraint by steady pin (28) between self-centering ringfeder (26) and the tensioner outer bush (24), steady pin (28) is positioned at the axial elongated slot on the execution set (25); Elastic shaft is arranged in the endoporus of self-centering ringfeder (26) to position limiting structure (27), and is positioned at needle-valve body (50) import one side, and by steady pin (28) axial limiting; Piston rod (31) can be sleeved in rotary sleeve (23) centre bore axially slidably.
2. according to the accurate positioning clamping device of the said needle-valve body class of claim 1 part axial elasticity; It is characterized in that: said elastic shaft is made up of fixing spring seat (271), spring (272) and mobile spring seat (273) to position limiting structure (27); Fixing spring seat (271) is identical with mobile spring seat (273) structure; One end is a planar ends, and the other end is provided with and the corresponding pit of spring (272), fixing spring seat (271) and mobile spring seat (273) symmetrical line setting; Spring (272) is arranged between fixing spring seat (271) and the mobile spring seat (273); The planar ends of fixing spring seat (271) contacts with steady pin (28), and the pit face contacts with spring (272), and mobile spring seat (273) is corresponding with needle-valve body to be processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201251785U CN202507175U (en) | 2012-03-28 | 2012-03-28 | Axial elastic accurate positioning and clamping device for needle valve body part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201251785U CN202507175U (en) | 2012-03-28 | 2012-03-28 | Axial elastic accurate positioning and clamping device for needle valve body part |
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| CN202507175U true CN202507175U (en) | 2012-10-31 |
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| CN2012201251785U Withdrawn - After Issue CN202507175U (en) | 2012-03-28 | 2012-03-28 | Axial elastic accurate positioning and clamping device for needle valve body part |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601729A (en) * | 2012-03-28 | 2012-07-25 | 常州博瑞油泵油嘴有限公司 | Axial elastic precise positioning clamping device for needle valve parts |
| CN110281150A (en) * | 2019-07-31 | 2019-09-27 | 沈阳建筑大学 | A kind of piston power plant for ceramic bearing ring interior raceway groove clamping tool |
| CN113118480A (en) * | 2019-12-30 | 2021-07-16 | 宇环数控机床股份有限公司 | Novel electric spindle device |
| CN110421483B (en) * | 2018-12-04 | 2024-04-30 | 西安成立航空制造有限公司 | Clamping mechanism based on accurate tiny part of hole location grinding |
-
2012
- 2012-03-28 CN CN2012201251785U patent/CN202507175U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601729A (en) * | 2012-03-28 | 2012-07-25 | 常州博瑞油泵油嘴有限公司 | Axial elastic precise positioning clamping device for needle valve parts |
| CN110421483B (en) * | 2018-12-04 | 2024-04-30 | 西安成立航空制造有限公司 | Clamping mechanism based on accurate tiny part of hole location grinding |
| CN110281150A (en) * | 2019-07-31 | 2019-09-27 | 沈阳建筑大学 | A kind of piston power plant for ceramic bearing ring interior raceway groove clamping tool |
| CN113118480A (en) * | 2019-12-30 | 2021-07-16 | 宇环数控机床股份有限公司 | Novel electric spindle device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Axial elastic precise positioning clamping device for needle valve parts Effective date of registration: 20131113 Granted publication date: 20121031 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: Changzhou Bost Fuel Injection Equipment Co.,Ltd. Registration number: 2013990000843 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20141113 Granted publication date: 20121031 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: Changzhou Bost Fuel Injection Equipment Co.,Ltd. Registration number: 2013990000843 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Axial elastic precise positioning clamping device for needle valve parts Effective date of registration: 20141114 Granted publication date: 20121031 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: Changzhou Bost Fuel Injection Equipment Co.,Ltd. Registration number: 2014990000944 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20151123 Granted publication date: 20121031 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: Changzhou Bost Fuel Injection Equipment Co.,Ltd. Registration number: 2014990000944 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Axial elastic precise positioning clamping device for needle valve parts Effective date of registration: 20151126 Granted publication date: 20121031 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: Changzhou Bost Fuel Injection Equipment Co.,Ltd. Registration number: 2015990001049 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121031 Effective date of abandoning: 20160817 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20170509 Granted publication date: 20121031 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: Changzhou Bost Fuel Injection Equipment Co.,Ltd. Registration number: 2015990001049 |