CN201389698Y - Device for correcting bouncing of centers - Google Patents
Device for correcting bouncing of centers Download PDFInfo
- Publication number
- CN201389698Y CN201389698Y CN200920302010U CN200920302010U CN201389698Y CN 201389698 Y CN201389698 Y CN 201389698Y CN 200920302010 U CN200920302010 U CN 200920302010U CN 200920302010 U CN200920302010 U CN 200920302010U CN 201389698 Y CN201389698 Y CN 201389698Y
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- fixed
- base
- workbench
- dial gauge
- workpiece
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a device for correcting the bouncing of centers. The device comprises a magnetic stand, a first measuring instrument, a second measuring instrument, a measuring rack, a T-shaped screw rod, a nut and a washer, wherein the measuring rack comprises a base and a straight rod vertically fixed on the base; a steel upper base plate with the upper surface parallel to the bottom surface of the base is fixed at the upper end of the straight rod; and a screw rod groove is formed on the base. The non-coincidence of the central line of the upper center and the rotating center can be detected accurately by utilizing the device for correction, and therefore the position of the workpiece can be adjusted correspondingly, and the accuracy deviation in the processing of gear shaft is avoided.
Description
Technical field
The utility model relates to a kind of top device of beating of proofreading and correct, particularly a kind of device of proofreading and correct the last top circular runout of gear grinding machines.
Background technology
During gear grinding machines processing tooth axial workpiece, often adopt two top on above-below direction, shaft blank being positioned to clamp, on shaft blank, carry out roll flute processing again.Wherein following top (be meant and have top mold down) is fixed on the workbench that circles round, and require the top down axis and the center of rotation of workbench to coincide, go up and toply (to be meant and to have the top mold of going up, this mold is carried by gear grinding machines) then be fixed on the centrre rest, last centrre rest can move up and down with respect to the frame of gear grinding machines and rotate, but when grinding axle tooth, then now maintain static, also require the upward top axis and the center of rotation of workbench to coincide for frame.Therefore, before the location clamps workpiece, need proofread and correct two top positions up and down.Proofread and correct top measurement mechanism of beating and comprise Magnetic gauge stand, dial gauge and auxiliary frame.
See Fig. 6, Magnetic gauge stand 3 comprises magnet base 31, first ball adapter 32, head rod 33, rotating shaft 34, second connecting rod 35, second ball adapter 36, the 3rd connecting rod 37 and table cover 38.First ball adapter 32 is fixedlyed connected with magnet base 31 by its ball seat, one end of head rod 33 is fixedlyed connected with first ball adapter, 32 spheroids, the other end of head rod 33 and rotating shaft 34 are rotationally connected, also be rotatably connected to second connecting rod 35 in the rotating shaft 34, the other end of second connecting rod 35 is fixedlyed connected with the ball seat of second ball adapter 36, one end of the spheroid of second ball adapter 36 and the 3rd connecting rod 37 is fixed together, and the other end of the 3rd connecting rod 37 is fixedlyed connected with table cover 38.Dial gauge is removable to be fixed on the table cover 38.The main body of auxiliary frame is a steelframe, and the below of steelframe is fixed with permanent magnet.
See Fig. 7, dial gauge has 2, and they are first dial gauge 41 and second dial gauge 42, and Magnetic gauge stand 3 also has 2.Under proofreading and correct top 52 o'clock, with the magnetic of Magnetic gauge stand 3 by magnet base 31 be fixed on steel not with workbench 61 contacted fixtures 62 (frame just) on, to descend the top 52 center of rotation places that are fixed on workbench 61 with range estimation, then, the 3rd connecting rod 37 of pulling Magnetic gauge stand 3 makes it near following top 52, measuring staff with second dial gauge 42 contacts with following top 52 again, starting workbench 61 makes it to rotate, rotation along with workbench 61, top 52 together rotate down thereupon, second dial gauge 42 then is in motionless state, thereby measure top circular runout down by second dial gauge 42, if its jitter values is then adjusted following top 52 position greater than 0.01 millimeter, be less than or equal to till 0.01 millimeter up to the circular runout value.
Still see Fig. 7, after adjusting down top 52 position, go up the correction of top 51 position again.On proofreading and correct during top 51 position, to go up top 51 earlier is fixed on the centrre rest (not drawing among the figure), again auxiliary frame 8 is fixed on the workbench 61 by permanent magnet 81, Magnetic gauge stand 3 is fixed on the auxiliary frame 8 of steel, the measuring staff of the dial gauge 41 of winning is contacted with last top 51.Then, starting workbench 61 makes it to rotate, rotation along with workbench 61, first dial gauge 41 together rotates thereupon, go up top 51 and then be in motionless state, thereby measure upward top 51 circular runout by first dial gauge 41,, be less than or equal to till 0.01 millimeter up to the circular runout value if its circular runout value is then adjusted last top position greater than 0.01 millimeter.
After having finished the above-mentioned first time of top up and down correction, also come whether top position is up and down correctly tested by measurement to the circular runout of workpiece (being shaft blank), if only differ several, then only need generally requirement can be reached, then second-order correction need be do not carried out if still reach requirement by the securing member of adjusting the corresponding position.The method of inspection is: referring to Fig. 5, workpiece 7 is installed between top 51 and down top 52, and first dial gauge 41 and second dial gauge 42 all are arranged on the fixture 62 by Magnetic gauge stand 3, and first dial gauge 41 contacts with the last axle journal of workpiece 7, second dial gauge 42 contacts with the following axle journal of workpiece 7, by rotary work-table 61, detect the beating of upper and lower axle journal of workpiece 7 respectively by first dial gauge 41 and second dial gauge 42, if beating of upper and lower axle journal is less than or equal to 0.01mm, can begin to carry out roll flute processing.
But find in practice, after processing through roll flute by the workpiece of above-mentioned bearing calibration correction, still have the high accuracy problem of unstable of processing.
The utility model content
The purpose of this utility model is to overcome the problems referred to above, provides a kind of gear grinding machines that in use can make that the stability of the machining high-precision of tooth axial workpiece is proofreaied and correct top device of beating preferably.
The technical scheme that realizes the utility model purpose is: a kind ofly proofread and correct top device of beating, comprise Magnetic gauge stand, first meter and second meter; Also comprise measurement bay, T type screw rod, nuts and washers; Measurement bay comprises base and is vertically fixed on straight-bar on the base that the steel upper base plate that a upper surface is parallel to the bottom surface of base is fixed in the upper end of straight-bar; Base is provided with screw slot; During use, measurement bay by its base by T type screw rod, nuts and washers be fixed on down top or workbench on, and be positioned at the top of time top or workbench; Magnetic gauge stand is fixed on the steel seat board of measurement bay and is positioned at the top of steel upper base plate, perhaps is fixed on the straight-bar of measurement bay and is positioned at a side of straight-bar, perhaps be fixed on workbench from fixture on; The table that first meter and second meter are separately fixed at a corresponding Magnetic gauge stand puts.
Described straight-bar is circular or square.
The utlity model has positive effect: the basis of (1) device of the present utility model is to have found the unsettled reason of machining accuracy in practice, when carrying out upper and lower top position correction, top down because nearer from workbench, timing is again that second dial gauge is motionless, and top down the rotation, therefore the top down measurement of beating is more accurate, can put in place substantially thereby make it beat.But on proofreading and correct during top position, its distance with respect to workbench is subjected to the qualification of the specification of lathe own and leaves far away, and when playing the table measurement, be that first dial gauge is around last top rotation, and go up top motionless, it is less to add top cylindrical, and gauge outfit numerical value is very unstable, causes the very easily distortion of numerical value of beating of measuring.Being that last top the beating that this method is proofreaied and correct has error, also is workpiece when with respect to plumb line small angular error being arranged, and measurement is not come out, thereby two top centre of location lines and workbench center of rotation do not coincide.At this moment after two load onto workpiece between top during the beating of the upper and lower axle journal of measuring workpieces, because first dial gauge maintains static, workpiece then remains in rotation to same direction small skew, so on first dial gauge, can not measure this error, cause the error measured, thereby make that to grind the accuracy of gear of coming relatively poor, but if on proofreading and correct during top position, make its location comparatively accurate, then grind the precision of gear higher.This shows that existing machining accuracy problem of unstable during gear grinding machines processing tooth axial workpiece is the problem that the measurement update method is brought.(2) proofread and correct on method with device of the present utility model and improve proofreading and correct top beating, on proofreading and correct during top position, original measuring staff is contacted with the axle journal of workpiece around the measuring staff that the situation of last top rotation changes into dial gauge, pass through workpiece more together around last top rotation, when exist going up the situation that top center line do not coincide with center of rotation, rotation along with workbench, first dial gauge is then along with the rotation of workbench is together moved, workpiece then in rotation all the time towards direction tilt (for example positive east), thereby the measuring staff of dial gauge bounces back maximum when being positioned at the positive east of workpiece, the measuring staff of dial gauge stretches out when being positioned at the positive west of workpiece at most, thereby the center line that can detect top this moment does not exactly overlap with center of rotation, thereby can adjust accordingly the position of workpiece, and then avoid the deviation of the precision when processing tooth axle.
Description of drawings
Fig. 1 be in the device of the present utility model measurement bay structural representation;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 measures and proofreaies and correct and to the last top schematic diagram measuring and proofread and correct for the first time of carrying out down top for device of the present utility model;
Fig. 4 is that device of the present utility model is to the last top schematic diagram that carries out measurement for the second time and proofread and correct;
Thereby whether accurately Fig. 5 measures the top up and down position of check schematic diagram for the upper and lower axle journal of workpiece is beated.
Fig. 6 is the structural representation of Magnetic gauge stand of the prior art;
Fig. 7 for of the prior art to top operation chart of proofreading and correct up and down.
Mark in the above-mentioned accompanying drawing is as follows:
Measurement bay 1, base 11, straight-bar 12, plectane 13, kidney slot 14,
T type screw rod 21, nut 22, packing ring 23,
First meter, 41, the second meters 42,
Go up top 51, following top 52,
Workbench 61, fixed reference 62,
The specific embodiment
The top device of beating of the correction of present embodiment comprises measurement bay 1, T type screw rod 21, nut 22, packing ring 23, Magnetic gauge stand 3, first dial gauge 41 and second dial gauge 42.
See Fig. 1 and Fig. 2, measurement bay 1 comprises base 11 and is vertically fixed on straight-bar 12 on the base 11, the steel upper base plate 13 that a upper surface is parallel to the bottom surface of base 11 is fixed in the upper end of straight-bar 12, and base 11 is provided with screw slot 14, and described straight-bar 12 is circular or square.
See Fig. 6, Magnetic gauge stand 3 comprises magnet base 31, first ball adapter 32, head rod 33, rotating shaft 34, second connecting rod 35, second ball adapter 36, the 3rd connecting rod 37 and table cover 38.First ball adapter 32 is fixedlyed connected with magnet base 31 by its ball seat, one end of head rod 33 is fixedlyed connected with first ball adapter, 32 spheroids, the other end of head rod 33 and rotating shaft 34 are rotationally connected, also be rotatably connected to second connecting rod 35 in the rotating shaft 34, the other end of second connecting rod 35 is fixedlyed connected with the ball seat of second ball adapter 36, one end of the spheroid of second ball adapter 36 and the 3rd connecting rod 37 is fixed together, and the other end of the 3rd connecting rod 37 is fixedlyed connected with table cover 38.Amesdial is removable to be fixed on the table cover 38.The main body of auxiliary frame is a steelframe, and the below of steelframe is fixed with permanent magnet.
The top method of beating of the device correction of present embodiment may further comprise the steps:
1. see Fig. 3, to descend top 52 to be fixed on the workbench 61, Magnetic gauge stand 3 is fixed on by its magnet base 31 on the fixture 62 that leaves mutually with workbench 61, second dial gauge 42 is fixed on the table cover 38 of Magnetic gauge stand 3, the measuring staff of second dial gauge 42 is contacted with times top 52 conus portion.
2. start workbench 61 and make it to rotate, and begin:, then measure for the first time and proofread and correct and finish if the shown measuring staff of second dial gauge 42 is less than or equal to 0.01 millimeter with respect to the numerical value of top 52 circular runout down to top 52 measuring and proofread and correct down; If the numerical value of measured circular runout is greater than 0.01 millimeter, after being stopped operating, workbench 61 earlier corresponding fastening bolt is carried out the degree of tightness adjustment, restarting workbench 61 measures, if still workbench 61 back that stops operating is adjusted to following top 52 positions on workbench 61 greater than 0.01 millimeter, start and stop workbench 61 is measured again, so repeatedly, be less than or equal to 0.01 millimeter until this numerical value of beating.
Workbench is stopped operating, will go up top 51 and be fixed on the centrre rest.Measurement bay 1 is passed through T type screw rod 21 by its base 11, and nut 22 and packing ring 23 are fixed on down on top 52, and are positioned at top 52 top down.Magnetic gauge stand 3 is fixed on by its magnet base 31 on the steel upper base plate 13 of measurement bay 1, first dial gauge 41 is fixed on the table cover 38 of Magnetic gauge stand 3, the measuring staff of first dial gauge 41 is contacted with last top 51 conus portion.
4. starting workbench 61 makes it to rotate, and begin to carry out measuring for the first time and proofreading and correct to last top 51: if the shown measuring staff of first dial gauge 41 is less than or equal to 0.01 millimeter with respect to the numerical value of last top 51 circular runout, then measures for the first time and proofread and correct and finish; If the numerical value of measured circular runout is greater than 0.01 millimeter, then make workbench 61 back that stops operating corresponding bolts be regulated and adjust top 51 positions on last centrre rest, start and stop workbench 61 is measured again, so repeatedly, is less than or equal to 0.01 millimeter until this numerical value of beating.
5. see Fig. 4, workbench 61 is stopped operating, workpiece 7 is installed between top 51 and down top 52; The measuring staff of first dial gauge 41 is contacted with the last axle journal of workpiece 7, the Magnetic gauge stand 3 that is fixed with second dial gauge 42 is fixed on the straight-bar 12 of measurement bay 1 and is positioned at a side of straight-bar 12, the measuring staff of second dial gauge 42 is contacted with the following axle journal of workpiece 7.
6. starting workbench 61 makes it to rotate, and begin to carry out measuring for the second time and proofreading and correct to last top 51: if the shown measuring staff of first dial gauge 41 is less than or equal to 0.01 millimeter with respect to the circular runout numerical value of the last axle journal of workpiece 7, then to measuring and proofreaied and correct end last top 51 the second time; If the numerical value of measured circular runout is greater than the numerical value of regulation, and the shown measuring staff of second dial gauge 42 with respect to the numerical value of the circular runout of the following axle journal of workpiece 7 less than the circular runout numerical value of the shown measuring staff of first dial gauge 41 with respect to the following axle journal of workpiece 7, judge that then last top 51 position is inaccurate, make workbench 61 back that stops operating regulate corresponding adjustment bolt and adjust top 51 positions on last centrre rest, restarting workbench 61 measures, so repeatedly, until this numerical value of beating less than 0.01 millimeter; Thereby finished last top 51 second-order correction.
After having finished above-mentioned second-order correction, also come whether top position is up and down correctly tested by measurement to the circular runout of workpiece (being shaft blank), if only differ several, then only need generally requirement can be reached, then second-order correction need be do not carried out if still reach requirement by the securing member of adjusting the corresponding position.
7. see Fig. 5, pull down be fixed on down top 52 or workbench 61 on measurement bay 1, first dial gauge 41 and second dial gauge 42 Magnetic gauge stand 3 by separately all is arranged on the fixture 62, and first dial gauge 41 contacts with the last axle journal of workpiece 7, and second dial gauge 42 contacts with the following axle journal of workpiece 7.
8. starting workbench 61 makes it to rotate, and begin to be tested in top position up and down, if the shown measuring staff separately of first dial gauge 41 and second dial gauge 42 is less than or equal to 0.01 millimeter with respect to the circular runout numerical value of the corresponding axle journal of workpiece 7, then be up to the standards, can begin to carry out roll flute processing; Under rare occasion, if the shown measuring staff separately of first dial gauge 41 or second dial gauge 42 with respect to the circular runout numerical value of the corresponding axle journal of workpiece 7 greater than 0.01 millimeter, then earlier corresponding bolts is regulated and get final product, if also be not less than or equal 0.01 millimeter, then carry out step again 1. to step measurement and correction 6., be less than or equal to till 0.01 millimeter up to the measured numerical value of beating.
Claims (2)
1, a kind ofly proofreaies and correct top device of beating, comprise Magnetic gauge stand (3), first meter (41) and second meter (42); It is characterized in that: also comprise measurement bay (1), T type screw rod (21), nut (22) and packing ring (23); Measurement bay (1) comprises base (11) and is vertically fixed on straight-bar (12) on the base (11) that the steel upper base plate (13) that a upper surface is parallel to the bottom surface of base (11) is fixed in the upper end of straight-bar (12); Base (11) is provided with screw slot (14);
During use, by T type screw rod (21), nut (22) and packing ring (23) are fixed on down on top (52) or the workbench (61) measurement bay (1) by its base (11), and are positioned at the top of following top (52) or workbench (61); The top of steel upper base plate (13) is gone up and be positioned to the steel seat board (13) that Magnetic gauge stand (3) is fixed on measurement bay (1), a side of straight-bar (12) is gone up and be positioned to the straight-bar (12) that perhaps is fixed on measurement bay (1), perhaps be fixed on workbench (61) from fixture (62) on; First meter (41) and second meter (42) are separately fixed on the table cover (38) of a corresponding Magnetic gauge stand (3).
2, the top device of beating of correction according to claim 1 is characterized in that: described straight-bar (12) is for circular or square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920302010U CN201389698Y (en) | 2009-04-09 | 2009-04-09 | Device for correcting bouncing of centers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920302010U CN201389698Y (en) | 2009-04-09 | 2009-04-09 | Device for correcting bouncing of centers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201389698Y true CN201389698Y (en) | 2010-01-27 |
Family
ID=41596518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920302010U Expired - Fee Related CN201389698Y (en) | 2009-04-09 | 2009-04-09 | Device for correcting bouncing of centers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201389698Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539392B (en) * | 2009-04-09 | 2011-01-05 | 常州天山重工机械有限公司 | Method for calibrating center jitter |
| CN109663933A (en) * | 2018-11-16 | 2019-04-23 | 中国航发西安动力控制科技有限公司 | High accuracy positioning is top |
-
2009
- 2009-04-09 CN CN200920302010U patent/CN201389698Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539392B (en) * | 2009-04-09 | 2011-01-05 | 常州天山重工机械有限公司 | Method for calibrating center jitter |
| CN109663933A (en) * | 2018-11-16 | 2019-04-23 | 中国航发西安动力控制科技有限公司 | High accuracy positioning is top |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100127 Termination date: 20120409 |