CN203908515U - Pneumatic main shaft tilt error measuring device - Google Patents
Pneumatic main shaft tilt error measuring device Download PDFInfo
- Publication number
- CN203908515U CN203908515U CN201420329124.XU CN201420329124U CN203908515U CN 203908515 U CN203908515 U CN 203908515U CN 201420329124 U CN201420329124 U CN 201420329124U CN 203908515 U CN203908515 U CN 203908515U
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- CN
- China
- Prior art keywords
- main shaft
- pneumatic main
- servo turntable
- displacement sensor
- pneumatic
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a pneumatic main shaft tilt error measuring device, which comprises a base, a pneumatic main shaft support, a pneumatic main shaft, a cylindrical detection rod, a cylindrical pin, a connecting piece, a precise servo turntable, a servo turntable support and a non-contact displacement sensor. The end surface of the cylindrical detection rod is provided with an end surface groove; the connecting piece is fixedly mounted on the end surface of a revolved body of the precise servo turntable, one end of the cylindrical pin is fixed in an eccentric hole of the connecting piece, one end is inserted in the end surface groove of the cylindrical detection rod, a measuring head of the non-contact displacement sensor is aligned with the cylindrical detection rod, and a sensor bracket is fixed on the base. The axis of the servo turntable is coincide with the revolving axis of the pneumatic main shaft. The pneumatic main shaft tilt error measuring device has the beneficial effects that the driving of compressed air stops in measurement, the pneumatic main shaft is driven to revolve coaxially and synchronously by the precise servo turntable, and the relation between the displacement sensor reading and the main shaft revolving angular position can be accurately measured, thereby the main shaft movement tilt error can be accurately measured.
Description
Technical field
The utility model belongs to the numerically-controlled machine functional part technical field of advanced equipment manufacturing, relates to a kind of measurement mechanism, is specifically related to a kind of pneumatic main shaft droop error measurement mechanism.
Background technology
Advanced manufacturing set comprises process unit (as lathe), testing equipment (as working equipment accuracy detection, manipulating object accuracy detection device used) and Logistics Equipment.The functional part of lathe mainly contains main motion parts (spindle unit), feed motion parts (straight-line feed parts, circular feed parts), tool magazine knife rest etc.Minuteness milling is to realize the guardian technique that is applicable to multiple material, the high precision of baroque three-dimensional miniaturization part, low cost and is processed into miniaturization manufacturing technology, is the effective technical way of realizing the micro-miniature structures part microfabrication of the various engineering materials such as metal, alloy, compound substance, pottery, glass, silicon.Minuteness milling main shaft mainly contains two kinds, electric main shaft and pneumatic main shaft, and the droop error of main shaft directly affects position and the attitude of minuteness milling tool.The inferior position of electricity main shaft is heating problem, causes the thermal deformation of the even whole microfabrication equipment of main shaft, and then affects microfabrication precision.With respect to electric main shaft, the pneumatic minuteness milling main shaft that adopts air turbine to drive does not have this problem, and therefore increasing minuteness milling is selected pneumatic main shaft.While specifying that motion of main shaft droop error detects in international ISO main shaft accuracy detection standard, need the relation of recorded bit displacement sensor reading and main shaft gyration angle position, this is for the easy realization of electric main shaft; But for pneumatic main shaft, owing to having adopted pressurized air to drive, the rotating speed of pneumatic main shaft and the pressure of air are closely related, and the variation of air pressure makes pneumatic main shaft rotational speed be difficult to accurate control, this brings very large difficulty for the precision measurement of carrying out the kinematic error of pneumatic main shaft under various speed, and then have influence in minuteness milling processing for the precision of introducing pneumatic motion of main shaft under various rotating speeds and carry out mathematical modeling, have a strong impact on research and the application of minuteness milling processing.
Utility model content
The purpose of this utility model is to provide a kind of pneumatic main shaft droop error measurement mechanism, can accurately measure pneumatic main shaft droop error.
The technical solution of the utility model is, a kind of pneumatic main shaft droop error measurement mechanism, comprise base, pneumatic spindle bearing, pneumatic main shaft, cylinder inspection rod, straight pin, web member, elaborate servo turntable, servo turntable bearing, non-contact displacement sensor A and non-contact displacement sensor B, described pneumatic spindle bearing is fixed on base, pneumatic main shaft is fixed on pneumatic spindle bearing, cylinder is examined on the turning axle that excellent one end is fixedly mounted on pneumatic main shaft, and cylinder is examined on the end face of the excellent other end and is provided with end face groove;
Elaborate servo turntable is fixedly installed on servo turntable bearing, servo turntable bearing is fixed on base, web member is fixedly mounted on the end face of solid of revolution of elaborate servo turntable, the upper surface of web member has eccentric orfice, one end of straight pin is fixed in the eccentric orfice of web member, the other end of straight pin inserts cylinder and examines in excellent end face groove, non-contact displacement sensor A and non-contact displacement sensor B are fixed on base by support, and the gauge head of non-contact displacement sensor A and non-contact displacement sensor B is aimed at cylinder inspection rod.
Feature of the present utility model is also,
Wherein the axis of rotation of elaborate servo turntable and the axis of rotation of pneumatic main shaft overlap, the external diameter of straight pin examines with cylinder moving cooperation that excellent end face groove is pine, and elaborate servo turntable drives cylinder inspection rod and pneumatic main shaft coaxial rotating by the straight pin in web member eccentric orfice.
Wherein non-contact displacement sensor A and non-contact displacement sensor B adopt high-precision optical fiber displacement transducer, also can adopt with pneumatic main shaft and cylinder and examine other high precision non-contact displacement sensors that excellent diameter adapts.
The beneficial effect of the utility model patent is: drive pneumatic main shaft coaxial synchronous to turn round by elaborate servo turntable, can Measurement accuracy displacement transducer reading and the relation of main shaft gyration angle position, thus accurately measure motion of main shaft droop error.
Brief description of the drawings
Fig. 1 is the structural representation of the pneumatic main shaft droop error of the utility model measurement mechanism;
Fig. 2 is the cut-away view of elaborate servo turntable of the present utility model and pneumatic main shaft annexation, and the K that wherein Fig. 2 a is Fig. 1 is to view, and Fig. 2 b is the cut-open view of A-A direction, and figure c is the cut-open view along B-B direction;
Fig. 3 is that in the utility model, elaborate servo turntable and pneumatic main shaft are coaxially installed adjustment schematic diagram.
In figure: 1. base, 2. pneumatic spindle bearing, 3. pneumatic main shaft, 4. cylinder inspection rod, 5. straight pin, 6. web member, 7. elaborate servo turntable, 8. non-contact displacement sensor A, 9. non-contact displacement sensor B, 10. servo turntable bearing.
Embodiment
The utility model provides a kind of pneumatic main shaft droop error measurement mechanism, as shown in Figure 1, comprise base 1, pneumatic spindle bearing 2, pneumatic main shaft 3, cylinder inspection rod 4, straight pin 5, web member 6, elaborate servo turntable 7, servo turntable bearing 10, non-contact displacement sensor A8 and non-contact displacement sensor B9, pneumatic spindle bearing 2 is fixed on base 1, pneumatic main shaft 3 is fixed on pneumatic spindle bearing 2, cylinder is examined excellent 4 one end and is fixedly mounted on the turning axle of pneumatic main shaft 3, and cylinder is examined on the end face of excellent 4 other ends and is provided with end face groove;
Wherein elaborate servo turntable 7 is fixedly installed on servo turntable bearing 10, servo turntable bearing 10 is fixed on base 1, web member 6 is fixedly mounted on the end face of solid of revolution of elaborate servo turntable 7, the upper surface of web member 6 has eccentric orfice, one end of straight pin 5 is fixed in the eccentric orfice of web member 6 as schemed in Fig. 2 as shown in b, the other end of straight pin 5 inserts in the end face groove of cylinder inspection rod 4, as schemed a in Fig. 2 with as shown in figure c, non-contact displacement sensor A8 and non-contact displacement sensor B9 are fixed on base 1 by support, the gauge head of non-contact displacement sensor A8 and non-contact displacement sensor B9 is aimed at cylinder inspection rod 4.Non-contact displacement sensor A8 and non-contact displacement sensor B9 adopt high-precision optical fiber displacement transducer, also can adopt with pneumatic main shaft 3 and cylinder and examine other high precision non-contact displacement sensors that excellent 4 diameters adapt.
The axis of rotation of elaborate servo turntable 7 overlaps with the axis of rotation of pneumatic main shaft 3, the external diameter of straight pin 5 is moving cooperation of pine with the end face groove of cylinder inspection rod 4, and elaborate servo turntable 7 drives cylinder inspection rod 4 and pneumatic main shaft 3 coaxial rotatings by the straight pin 5 in web member 6 eccentric orfices.
Due to the cylinder matching with pneumatic main shaft 3, to examine excellent 4 diameters very little, non-contact displacement sensor 8A and non-contact displacement sensor 9B adopt high-precision optical fiber displacement transducer, also can adopt with pneumatic main shaft 3 and cylinder and examine other high precision non-contact displacement sensors that excellent 4 diameters adapt.
As shown in Figure 3, pneumatic main shaft droop error measurement mechanism of the present utility model uses as follows:
(1) first adjusting servo turntable 7 overlaps with pneumatic main shaft 3 axiss of rotation: as shown in Figure 3, the gauge head of non-contact displacement sensor 8A and 9B is aimed at cylinder inspection rod 4, when adjustment, sensor stand is fixed on the solid of revolution end face of servo turntable 7, pneumatic main shaft 3 transfixions, servo turntable 7 is from 0 degree turnback, according to the reading of non-contact displacement sensor 8A and 9B, adjust servo turntable bearing 10 and be fixed on position and the direction of on base 1, installing, repeat to adjust until in servo turntable 7 rotation processes the reading of non-contact displacement sensor 8A and 9B change and reach minimum, reaching servo turntable 7 overlaps with pneumatic main shaft 3 axiss of rotation, after adjustment completes, sensor is propped up from the solid of revolution end face of servo turntable 7 and unload.
(2) one end of straight pin 5 is inserted and secured in the eccentric orfice of web member 6, and the other end of straight pin 5 is aimed at cylinder and examined the groove on excellent 4 end faces, and the end face center that then web member 6 is moved to the solid of revolution of elaborate servo turntable 7 is also fixed, and result is as Fig. 1.
(3) carry out when pneumatic main shaft droop error is measured the support of non-contact displacement sensor 9A and 10B to be fixed on base 1, servo turntable 7 turns round and passes through web member 6, straight pin 5 drives and pneumatic main shaft 3 synchronous revolvings, can carry out pneumatic main shaft droop error and measure.
Claims (3)
1. a pneumatic main shaft droop error measurement mechanism, it is characterized in that, comprise base (1), pneumatic spindle bearing (2), pneumatic main shaft (3), cylinder inspection rod (4), straight pin (5), web member (6), elaborate servo turntable (7), servo turntable bearing (10), non-contact displacement sensor A (8) and non-contact displacement sensor B (9), described pneumatic spindle bearing (2) is fixed on base (1), pneumatic main shaft (3) is fixed on pneumatic spindle bearing (2), cylinder inspection rod (4) one end is fixedly mounted on the turning axle of pneumatic main shaft (3), on the end face of cylinder inspection rod (4) other end, be provided with end face groove,
Described elaborate servo turntable (7) is fixedly installed on servo turntable bearing (10), servo turntable bearing (10) is fixed on base (1), web member (6) is fixedly mounted on the end face of solid of revolution of elaborate servo turntable (7), the upper surface of web member (6) has eccentric orfice, one end of straight pin (5) is fixed in the eccentric orfice of web member (6), the other end of straight pin (5) inserts in the end face groove of cylinder inspection rod (4), non-contact displacement sensor A (8) and non-contact displacement sensor B (9) are fixed on base (1) by support, the gauge head of non-contact displacement sensor A (8) and non-contact displacement sensor B (9) is aimed at cylinder inspection rod (4).
2. pneumatic main shaft droop error measurement mechanism according to claim 1, it is characterized in that, the axis of rotation of described elaborate servo turntable (7) overlaps with the axis of rotation of pneumatic main shaft (3), the external diameter of straight pin (5) is moving cooperation of pine with the end face groove of cylinder inspection rod (4), and elaborate servo turntable (7) drives cylinder inspection rod (4) and pneumatic main shaft (3) coaxial rotating by the straight pin (5) in web member (6) eccentric orfice.
3. pneumatic main shaft droop error measurement mechanism according to claim 1, it is characterized in that, non-contact displacement sensor A (8) and non-contact displacement sensor B (9) adopt high-precision optical fiber displacement transducer, also can adopt other high precision non-contact displacement sensors that adapt with pneumatic main shaft (3) and cylinder inspection rod (4) diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420329124.XU CN203908515U (en) | 2014-06-19 | 2014-06-19 | Pneumatic main shaft tilt error measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420329124.XU CN203908515U (en) | 2014-06-19 | 2014-06-19 | Pneumatic main shaft tilt error measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203908515U true CN203908515U (en) | 2014-10-29 |
Family
ID=51782776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420329124.XU Expired - Fee Related CN203908515U (en) | 2014-06-19 | 2014-06-19 | Pneumatic main shaft tilt error measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203908515U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197887A (en) * | 2014-06-19 | 2014-12-10 | 绍兴绍力机电科技有限公司 | Device and method for measuring tilt error of air main shaft |
-
2014
- 2014-06-19 CN CN201420329124.XU patent/CN203908515U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197887A (en) * | 2014-06-19 | 2014-12-10 | 绍兴绍力机电科技有限公司 | Device and method for measuring tilt error of air main shaft |
| CN104197887B (en) * | 2014-06-19 | 2017-01-25 | 绍兴绍力机电科技有限公司 | Device and method for measuring tilt error of air main shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20190619 |