CN1021697C - Installation of grinding machine of coreless center hole of needle valve body of oil nozzle - Google Patents
Installation of grinding machine of coreless center hole of needle valve body of oil nozzle Download PDFInfo
- Publication number
- CN1021697C CN1021697C CN 89100677 CN89100677A CN1021697C CN 1021697 C CN1021697 C CN 1021697C CN 89100677 CN89100677 CN 89100677 CN 89100677 A CN89100677 A CN 89100677A CN 1021697 C CN1021697 C CN 1021697C
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- core retainer
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Abstract
The present invention relates to a centreless grinding mechanical device for a middle hole of a needle valve body of an oil nozzle, which is obviously characterized in that the device is used for grinding inner holes by positioning the inner holes. Thus, the excess of the inner holes is minimized, and waste products which are unevenly ground can not be generated. A main shaft of an integral grinding wheel made from high-hardness grinding materials is arranged in the centreless grinding mechanical device supported by a static pressure bearing, and the centreless grinding mechanical device is directly driven by a miniature motor through a belt transmission system to generate high rotation speed of 60000 to 70000 r/min. In addition, high-frequent motors are high-speed pneumatic systems which need to be used in the existing inner hole grinding device are omitted. The automatic grinding and feeding, the regulation of a machining taper, the reciprocation of the grinding wheel, etc. of the device are in a structure without guide rails. Thus, the device of the present invention has the advantages of simple structure, high precision and high stability; in addition, the device is a special mechanical device with high efficiency and high precision, and is used for grinding a middle hole of a needle valve body of an oil nozzle.
Description
The invention belongs to a kind of mechanical device of grinding diesel injector needle-valve body mesopore special purpose machine tool.
Known atomizer mesopore grinding machine needs the clamping cylindrical to adopt air grinder or the electronic bistrique of high frequency, with common diamond spar wheel grinding endoporus.Grinding head system moves back and forth and the grinding and feeding motion of clamping workpiece positioning head frame system is paid realization by the slide unit guide rail of hydraulic jack control, this type of lathe complexity coefficient is very high, involve great expense, maintaining work is very big, component wear speed is fast, simultaneously inhomogeneous because of processed blank inside and outside circle, thereby can form the local mill of mesopore and do not come out and produce the processing waste product.The correction and the renewal of processing medium plain emery wheel are frequent, have shortened the lathe effective time.
By the utility model patent that the present invention declared, application number is 87212684.6 only openly to be used for the basic structure of atomizer mesopore centerless grinding Working piece positioning device, will openly form whole technical solutions of atomizer mesopore installation of grinding machine of coreless center below.
The objective of the invention is to minimizing and produce waste product and simplification device mechanism because of blank inside and outside circle disalignment causes mesopore can not grind to reduce cost.
Technical solution of the present invention is:
A kind of nozzle needle valve body mesopore centerless grinding device, by workpiece positioning head frame and automatic feed mechanism (2), grinding carriage and transmission mechanism thereof (3) are formed, workpiece (1) endoporus is with location core retainer plate (21) location, it is characterized by the workpiece locating rack, grinding carriage and transmission mechanism thereof be installed in base plate (4) above, automatic feed mechanism be installed in base plate (4) below; Emery wheel body and main shaft are overall structure, by motor (36), and belt pulley, driving-belt is formed the emery wheel rotating actuator; On the axle of low-speed micro-motor (44) cam (43) is housed, it contacts with the grinding wheel spindle tail end and makes it obtain axial reciprocating motion.
The present invention has compared following advantage with known technology:
1, adopt high rigidity abrasive material electroplating abrasion wheel grinding atomizer mesopore, and make grinding wheel base body and main shaft make overall structure, it is simple in structure, be equivalent to 20-30 times of common inner hole grinding emery wheel service life.Needn't carry out the static balance of emery wheel, also needn't revise emery wheel, can simplify machine tool structure and raising lathe effective time significantly, can return abrasive material with blunt emery wheel and electroplate again, therefore daily consumption is very low.
2, the lathe grinding wheel spindle is by liquid static-pressure support, directly drive by belt drive system by a micromachine, make ten thousand rev/mins of turn up 6-7, its remarkable advantage is that this device does not need to resemble the necessary pneumatic high speed bistrique of common mesopore grinding machine, and the electronic bistrique of high frequency, therefore ultrasonic-frequency rotory generator group and air compressor unit have been saved, its on-load ability is better than air grinder, the equipment complexity coefficient is lower than air grinder and the electronic bistrique of high frequency, its life-span is higher than the electronic bistrique of high frequency, and its cost is only for using more than one percent of the electronic grinding head system of high frequency.
3, the present invention is no guide rail structure, and headstock plate is subjected to the effect of stepper motor and precision lead screw, swings up and down around hinge axis, finishes processing action.Grinding wheel spindle is subjected to the driving of low-speed micro-motor and edge cam when rotating at a high speed, produce to move back and forth in hydrostatic bearing.The adjustment of processing tapering then is to rely on the position that strain can take place the body of workpiece location core retainer plate mounting bracket to be solved by adjustment screw.Replaced the necessary operating slide guideway rail system of known mesopore grinding machine with said method, all parts seldom wear and tear at work, and therefore, the maintaining workload seldom.
4, adopt 87212684.6 disclosed patents location core retainer plates, can make workpiece blank stay minimum mill amount and can not produce the uneven waste product of grinding with workpiece endoporus location grinding endoporus.
The total figure of figure (1) installation of grinding machine of coreless center assembling.
Figure (2) headstock and feed mechanism A are to view.
Figure (3) workpiece location core retainer plate mounting bracket structure chart.
Figure (4) workpiece location core retainer plate is adjusted structure chart to grinding wheel spindle horizontal parallel degree.
Figure (5) grinding carriage and drive system structure B thereof are to view.
Figure (6) workpiece location core retainer plate fixed support front view.
Figure (7) workpiece location core retainer plate fixed support side view.
Below in conjunction with accompanying drawing the embodiment of the invention is described in further detail, figure (1) is this structure drawing of device, (1) be that work piece (2) is that the headstock and automatic feed mechanism (3) are grinding carriage and transmission mechanism thereof, these two parts all are connected with base plate (4) with screw.Stepper motor and precision lead screw thereof are installed in below the base plate.
Figure (2) is that the headstock and feed mechanism A are to view
Headstock plate (5) is installed between two rest pads (7) by axle (6), two rest pads are fixed together with screw and base plate (4), between headstock plate (5) bottom surface and the base plate (4) certain interval is arranged, move necessary gap so that constitute headstock plate advance and retreat cutter.
Adjustment screw and locking nut (8) are installed in headstock plate right-hand member, its end contacts with the precision lead screw end face, its effect is a dead-center position of determining the automatic tool advancing and retracting mechanism that is made of stepper motor (9), gear (10) (11) and precision lead screw (12), adjustment screw also has the function of manual operation advance and retreat cutter, at this moment should unclamp locking nut.
Workpiece location core retainer plate (21) utilizes screw to be fixed on to see figure (4) on the support (14), figure (6) is workpiece location core retainer plate fixed support front view, figure (7) is its side view, with front view workpiece location core retainer plate installing hole is that a groove has respectively been cut on the symmetrical centre both sides, figure (6) a, figure (7) b belongs at its two arm, be that symmetrical centre cuts out a square opening still with workpiece location core retainer plate, purpose is to weaken two arms rigidity herein, two block pressur plates (23) are fixed together with screw and its two arm, because pressing plate (23) (Fig. 4) is being processed with a concave face on the faying face with locating support (14), so just, reserved certain space for the swing of workpiece location core retainer plate center arm, when adjustment screw (24) (25), workpiece sleeve pipe locating support is cut at two arms on the axis of square opening produced strain, so just, can regulate the depth of parallelism of workpiece location core retainer plate, also just reach and regulate the purpose that is ground the part tapering grinding wheel spindle.Utilize dial framework (16) and amesdial (15) can observe the adjustment situation easily.
Workpiece core retainer plate locating support (14) is fixed on the horizontal direction parallel degree adjustable plate (22), horizontal adjustable plate then is fixed on the headstock plate through straight pin (17) and screw, and to be pivot with straight pin (17) regulate workpiece location core retainer plate by two adjustment screw (18) (19) and backing pin (20), to the depth of parallelism of grinding wheel spindle in the water direction.
Work piece (1) is contained on the workpiece location core retainer plate (21), (Fig. 2) drives the workpiece rotation by belt drive system (27) with elastic driving band (28) by motor (26).The effect of transverse axis (29) and cover (30) is elastic driving band (28) to be produced necessarily reverse so that workpiece has certain axial thrust load, and purpose is for the reciprocal grinding force of balance emery wheel.
Fig. 5 is grinding carriage and transmission system vertical view thereof.Grinding wheel spindle (31) is installed on the grinding carriage (34) by hydrostatic bearing (32) (33), and belt pulley (42) is housed on the grinding wheel spindle.Lubricating oil from machine tool hydraulic system arrives front and back bearings by the oil through on pipe joint (35) and the grinding carriage with distribution of lubrication oil, the throttle orifice that is 120 ° of distributions by circumference on the bearing enters fit clearance generation lubricating layer, when axle rotates at a high speed, will produce the hydrodynamic lubrication effect simultaneously.So just, can guarantee higher service life between the axle of hole.Motor (36) is sent to rotary power by belt pulley (38) driving-belt (37) belt pulley (39) at speedup bearing bracket stand (49) two ends, belt pulley (40) also passes through directly drive pulley (42) of nylon yarn ribbon (41), makes the grinding wheel spindle rotating speed reach ten thousand rev/mins of 6-7.Silk weaving band (41) has certain axial force backward to belt pulley (42), and the grinding wheel spindle tail end can be close to cam (43), utilizes low-speed micro-motor (44) can make grinding wheel spindle (31) obtain to move back and forth.
Low-speed micro-motor (44) is installed on the motor mounting plate (47), there are a protruding key and suitable for reading the matching of T type frid (46) in the motor mounting plate surface, and be fixed together by T type screw and T type frid, release handle (45) can make miniature low-speed motor (44) remove along T type frid (46), purpose is that grinding wheel spindle (31) can be extracted out from the grinding carriage rear, so that change with old grinding wheel spindle.
Cold oil from the lathe cooling system, (Fig. 2) be transported in the core retainer plate hole, workpiece location and flow to workpiece through pipe joint (49) and locate core retainer plate (21), with workpiece mesopore cooperation place, the grinding position is produced cooling effect, seal cover (48) runs off from core retainer plate rear end, workpiece location to prevent cooling fluid in the gap between (Fig. 1) capping workpiece core retainer plate rear end, location and the grinding wheel spindle under the effect of spring.
Claims (5)
1, a kind of nozzle needle valve body mesopore centerless grinding device, by workpiece positioning head frame and automatic feed mechanism (2), grinding carriage and transmission mechanism 3 thereof are formed, and workpiece (1) endoporus is characterized by the workpiece locating rack with location core retainer plate (21) location, grinding carriage and transmission mechanism thereof be installed in base plate (4) above, automatic feed mechanism be installed in base plate (4) below, emery wheel body and main shaft are overall structure, by motor (36), belt pulley, driving-belt is formed the emery wheel rotating actuator; Cam (43) is housed on the axle of low-speed micro-motor (44), and it contacts with the grinding wheel spindle tail end and makes the axial reciprocating motion of its acquisition.
2, device according to claim (1) is characterized in that headstock plate (5) is installed between two rest pads (7) by axle (6), two rest pads, be fixed together with screw and base plate (4), workpiece location core retainer plate (21) is fixed on the workpiece core retainer plate locating support (14), workpiece location core retainer plate locating support is fixed on the horizontal direction parallel degree adjustable plate (22), horizontal direction parallel degree adjustable plate is fixed on by straight pin (17) and screw that headstock plate (5) is gone up and be pivot with straight pin (17), regulates workpiece by two adjustment screw (18) (19) and backing pin (20) and locatees core retainer plate to the grinding wheel spindle depth of parallelism in the horizontal direction.
3, according to the device of claim 2, the locating support that it is characterized in that workpiece location core retainer plate with workpiece location core retainer plate installing hole by symmetry wherein fixedly both sides respectively cut a groove, and be symmetrical centre with workpiece location core retainer plate at its two arm, cut out a square opening, two block pressur plates (23) are fixing with its two arm with screw, at pressing plate (23) middle part screw (24) (25) are installed.
4, according to the device of claim 1, it is characterized in that by stepper motor (9), gear (10) (11), precision lead screw (12), adjustment screw and locking nut (8) are formed automatic feed mechanism.
5, according to the device of claim 1, it is characterized in that grinding wheel spindle (31), grinding wheel base body and main shaft are overall structure, on matrix, be coated with the high rigidity abrasive material, grinding wheel spindle (31) is installed on the grinding carriage (34) by hydrostatic bearing (32) (33), belt pulley (42) is housed on the grinding wheel spindle, and forms the grinding wheel spindle rotating mechanism by motor (36) belt pulley (38) driving-belt (37) belt pulley (39) (40) nylon yarn ribbon (41) belt pulley (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89100677 CN1021697C (en) | 1989-01-28 | 1989-01-28 | Installation of grinding machine of coreless center hole of needle valve body of oil nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89100677 CN1021697C (en) | 1989-01-28 | 1989-01-28 | Installation of grinding machine of coreless center hole of needle valve body of oil nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1035976A CN1035976A (en) | 1989-10-04 |
| CN1021697C true CN1021697C (en) | 1993-07-28 |
Family
ID=4853973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89100677 Expired - Fee Related CN1021697C (en) | 1989-01-28 | 1989-01-28 | Installation of grinding machine of coreless center hole of needle valve body of oil nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1021697C (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1056329C (en) * | 1995-07-14 | 2000-09-13 | 洛阳精密机床厂 | Grinding wheel avoiding-method of trimmer for automatic internal surface grinding machine |
| JP2006123132A (en) * | 2004-10-29 | 2006-05-18 | Koyo Mach Ind Co Ltd | Centerless grinding machine |
| CN101767300B (en) * | 2009-12-01 | 2011-05-04 | 济南四机数控机床有限公司 | Form grinding machine with Lift matched with grinding for self-detection high-precision fuel injector and match grinding method |
| CN103042457A (en) * | 2011-10-17 | 2013-04-17 | 东港威远油泵油嘴有限公司 | Numerically controlled grinding machine for processing mesopore base surface |
| CN102975089B (en) * | 2012-12-24 | 2015-09-30 | 亚狮精密刀具(苏州)有限公司 | One is not in the mood for step grinding machine |
| CN103252706B (en) * | 2013-01-15 | 2015-10-07 | 上海大学 | The control system of high accuracy jet orifice of needle valve attrition process and method |
| CN105127863A (en) * | 2015-08-25 | 2015-12-09 | 余姚市新新塑胶制品有限公司 | Full-automatic sharpening machine for needle valve |
| CN107838770A (en) * | 2017-06-30 | 2018-03-27 | 周有训 | A kind of modified workpiece inner wall burnishing device |
| CN107838769A (en) * | 2017-06-30 | 2018-03-27 | 周有训 | A kind of efficient workpiece inner wall burnishing device |
| CN107855917A (en) * | 2017-06-30 | 2018-03-30 | 周有训 | A kind of Novel workpiece polishing device for inner wall |
| CN109909876B (en) * | 2019-03-25 | 2024-03-22 | 深圳市金洲精工科技股份有限公司 | Grinding carriage mechanism |
| CN109848845B (en) * | 2019-04-10 | 2023-10-31 | 苏州友联纺工装备科技股份有限公司 | High-precision shifting grinding head mechanism |
-
1989
- 1989-01-28 CN CN 89100677 patent/CN1021697C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1035976A (en) | 1989-10-04 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |