CN203418369U - Sensor position adjusting device for rotation error detection of main shaft - Google Patents
Sensor position adjusting device for rotation error detection of main shaft Download PDFInfo
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- CN203418369U CN203418369U CN201320334702.4U CN201320334702U CN203418369U CN 203418369 U CN203418369 U CN 203418369U CN 201320334702 U CN201320334702 U CN 201320334702U CN 203418369 U CN203418369 U CN 203418369U
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- adjusting device
- rotation error
- screw
- fixed
- lifter plate
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Abstract
The utility model relates to a sensor position adjusting device for rotation error detection of a main shaft. The sensor position adjusting device is structurally characterized in that a guiding sleeve is arranged on a base and forms a sliding pair with a guiding rod fixed on a lifting board. The axis of the sliding pair is perpendicular to the horizontal plane. One end of a compressing screw is fixed on the base, and the other end of the compressing screw is provided with a thread, penetrates through the lifting board and is provided with a nut in a matched mode. A supporting board is fixed on the lifting board and attached to the plane of an installation board. Key grooves are formed in the supporting board and the installation board respectively. Two sliding flat keys are fixedly combined together to form a cross shape and matched with the corresponding key grooves. A sensor support and a limiting block are installed on the installation board, a detection bar is connected with the main shaft to the detected, and a center hole of the end portion of the detection bar is provided with a stepped shaft. Through adjustment by the device, a laser displacement sensor used for radial rotation error detection of the main shaft and the detection bar can be in accurate relative positions.
Description
Technical field
The invention relates to a kind of mechanic adjustment unit, is specifically a kind ofly for spindle rotation accuracy, to measure sensor with respect to the apparatus for adjusting position of test bar, can save the dependence to Machine, and can guarantee good testing efficiency, effect.
Background technology
Spindle rotation error is the key index of reflection dynamic characteristics of spindle system quality, is also the key factor that affects machine finish.By the test to spindle rotation error, can evaluate to the performance of main shaft minimum shape error, surface quality and roughness that under predicted ideal processing conditions, lathe can reach; Also can review the reason that mismachining tolerance produces, lathe be carried out to error compensation control, to improve machining accuracy; And can carry out condition monitoring and fault diagnosis to lathe.Therefore, the test of spindle rotation error is all significant to research and development of products and production practices.
Along with the raising of the speed of mainshaft, precision, traditional contact measurement method can not meet the demand of test.Currently to accurate main shaft radial error, mainly adopt laser displacement sensor to carry out non-contacting measurement, to main shaft axial error, mainly adopt contactless Eddy current displacement sensor to measure.But no matter select the sensor of which kind, all need to guarantee that the detecting head of sensor and the distance between test bar are in the measurement stroke range of sensor, and will guarantee position relationship correct between sensor.Conventional way is that the main shaft of test is arranged on a lathe, and then the reference axis by lathe moves, and tentatively guarantees the distance of sensor and test bar, and the position of last fine-tuning sensor is tested.
But, in the research and development of main shaft, trial-manufacturing process, conventionally do not have suitable lathe to be used for the auxiliary test of carrying out spindle error; So situation, if the suitable device of neither one regulates the position relationship between sensor and test main shaft, not only can cause testing efficiency low, and measuring accuracy is also difficult to ensure.
Summary of the invention
The invention provides a kind of sensing station adjusting device.This sensing station adjusting device can substitute the subtest function of aforementioned lathe, can ensure testing efficiency, also can reduce testing cost.
The object of the invention is achieved through the following technical solutions: the sensing station adjusting device detecting for spindle rotation error, it is characterized in that: fairlead is housed on base, form sliding pair with the guide post being fixed on lifter plate, the axis of sliding pair is perpendicular to horizontal plane; Clamping screw one end is fixed on base, and the other end is processed with screw thread, from lifter plate, passes and is furnished with nut; Gripper shoe is fixed on lifter plate, fits with installing plate plane; On gripper shoe and installing plate, have keyway, two slip flat keys are consolidated into " ten " font, form and coordinate with corresponding keyway; Sensor installation support and limited block on installing plate, test bar is connected with main shaft to be measured, and in the end of test bar, centre bore is equipped with multidiameter.
Two sides at lifter plate are fixed with handle; Between lifter plate and fairlead, there is different " U " type pad of a plurality of thickness.
Described test bar coordinates with the stomidium of multidiameter, by holding screw, is locked.
In test bar end, fix a spacer shell and process gap putting, by screw, act on spacer shell multidiameter is clamped.
Eddy current sensor is installed in installing plate center, at the excircle of eddy current sensor installation sleeve, three screw rods is installed, screw head is a little more than eddy current sensor.
After turning 90 ° of described gripper shoe, be arranged on lifter plate, for horizontal main axis, detect.
The beneficial effect of the invention: the invention adopts said structure, sensor can be done the adjusting of three directions under the drive of adjusting device with respect to test bar: lifter plate can be done with dynamic sensor the movement of above-below direction; Between gripper shoe and installing plate, along the movement of " ten " word feather key, can in horizontal plane, do with dynamic sensor the motion of " front and back ", " left and right " both direction.This has just guaranteed that radial error and axial error measuring transducer can be in optimal test positions.The quantity of sensor can need to be carried out flexible configuration according to test, but the kind of sensor only limits to noncontacting proximity sensor.Relevant parts are meticulous adjusting under closely-pitched screw rod " push-and-pull " effect all, guarantees that the while can not be caused again the collsion damage of sensor accurately in position.The setting of the little multidiameter in test bar end, offers convenience not only to adjusting work, also makes the weight of test bar lighter and handier, thereby can under higher rotating speed, measure.The shape of multidiameter also can be made different variations as required.This adjusting device is not only applicable to test bar perpendicular to the vertical measurement of horizontal plane, after the Installation posture of gripper shoe on lifter plate changes, is equally applicable to the measurement of horizontal attitude.
Accompanying drawing explanation
Fig. 1 is the three-dimensional profile figure of this adjusting device.
Fig. 2 is the section partial schematic diagram of this adjusting device.
Fig. 3 is the A portion partial enlarged drawing of Fig. 2.
Fig. 4 is the three-dimensional appearance figure of applicable horizontal attitude measurement.
Fig. 5 a is by multidiameter and test bar locking mode schematic diagram with screw.
Fig. 5 b is by multidiameter and test bar locking mode schematic diagram with nut.
Fig. 5 c is by multidiameter and test bar locking mode schematic diagram with the spacer shell with gap.
Fig. 5 d is the left view of Fig. 5 c.
The specific embodiment
Below in conjunction with accompanying drawing, the invention is described further, base 1 is the installation basis of this adjusting device, in application process, by base 1, this device is fixed to test site.Fairlead 16 is housed on base 1, and fairlead 16 forms sliding pair with the guide post 17 being fixed on lifter plate 3, and the axis of sliding pair is perpendicular to horizontal plane; In two sides of lifter plate 3, be fixed with handle 15; Under the drive of handle 15, the height of lifter plate 3 can freely be adjusted, and one group of suitable " U " shape pad 25 of height can insert guide post 17, and lifter plate 3 is supported on fairlead 16.Clamping screw 2 one end are fixed on base 1, and the other end passes from lifter plate 3, by nut 14, lifter plate are compressed.The quantity of clamping screw 2 and nut 14 can need to be selected according to structure, respectively has in this example three.Gripper shoe 10 is fixed on lifter plate 3, pastes and is associated with 24 connections of " ten " font feather key with installing plate 26 planes.Feather key 24 is comprised of two dive key 24a, 24b, is consolidated together by screws, pins, and coordinates with the keyway formation in gripper shoe 10, installing plate 26 respectively.Plate 13, plate 6 are fixed on the relevant position in gripper shoe 10, and screw 11, screw 4 are through the bar hole on plate 13, plate 6, the screwed hole in precession gripper shoe 10, and precession is darker, and the distance of plate 13, plate 6 and gripper shoe 10 is nearer; Screwed hole on screw 12, screw 5 difference precession plates 13, plate 6, and withstand in gripper shoe 10, precession is darker, and the distance of plate 13, plate 6 and gripper shoe 10 is far away.The force direction of screw 11, screw 12, screw 4,5 pairs of gripper shoes 10 of screw is parallel with the glide direction of feather key 24.After relative position between installing plate 26 and gripper shoe 10 is adjusted to the right place, by screw 19, by padding 18, its position is fixed.In this example, screw 19 always has three, and via diameter on installing plate 26 has determined its adjustable stroke.
Fixing rack for sensor 9 and limited block 27 conducts sensor fixture in groups, be fixed on installing plate 26, and fixing rack for sensor 9 provides the installation surface of laser displacement sensing 7, and limited block 27 makes laser displacement sensor 7 installation sites contour.Adopt in this example line-of-sight course to carry out the measurement of main shaft radial error, therefore, corresponding sensor fixture also will have three groups, and will guarantee that as much as possible the laser beam of three sensors intersects at a point through suitable adjustment, accurate to guarantee test result.If adopt other method of testing, need only change the quantity of sensor, and make corresponding adjustment.
When test bar 8 accesses test spindle taper hole by handle of a knife, just can by the adjustment up and down of lifter plate 3 and all around of installing plate 26, adjust as previously mentioned, make the laser displacement sensor 7 of radial error measurement in correct test position; Afterwards, lifter plate 3, installing plate 26 will pass through respectively screw lock, and position will no longer change.Like this, still, can not guarantee that the sensor of axial error measurement is also in best test position.
In order to address the above problem, according to the feature of this device, do not adopt regulating shaft to the common way of error measure sensing station, but a little multidiameter 20 has been installed in the end of test bar 8, eddy current sensor 22 is arranged on installation of sensors plate 26 centers, by adjusting the axial location of multidiameter 20, can make Eddy current displacement sensor 22 in best testing range, guarantee the detection of eddy current sensor to spindle thermal and axial runout.For the ease of the adjusting of multidiameter 20 and avoid its landing in adjustment process to damage eddy current sensor 22, at the excircle of installation of sensors cover 23, three screw rods 21 have been installed.The head of screw rod 21 is slightly higher than the head of eddy current sensor 22, and through processing repair, when the end face of multidiameter 20 and the head of screw rod 21 are contacted, the lucky hypothesis testing range in eddy current sensor 22.Afterwards by multidiameter 20 lockings, then by screw rod 21, screw out, itself and multidiameter 20 are departed from.
In Fig. 5 a-Fig. 5 d, enumerated the fixed installation mode of several multidiameters 20.Shown in Fig. 5 a, multidiameter 20 coordinates with the stomidium of test bar 8, and is radially being held out against by holding screw.In Fig. 5 b, multidiameter 20 processes external screw thread, and the end of test bar 8 processes screwed hole, and then the two passes through threaded engagement, and locks by round nut.As shown in Fig. 5 c and its left view Fig. 5 d, there is a spacer shell 28 to be fixed on the end of test bar, on spacer shell 28, process the two gap B of place, C, the effect of gap is to be convenient to spacer shell under the effect of lock-screw, to produce that distortion---there is the trend diminishing in the gap that is gap C place, thereby multidiameter 20 is clamped.It should be noted that, other NM fixed form, also in the lump protection category in, what we stated protection is this design concept.
With regard to application category, this example provides be for test bar perpendicular to horizontal plane, i.e. the measurement of main shaft in vertical Installation posture.Other tests attitude, such as the expressed gripper shoe 10 of Fig. 4 is in 90 ° of installations of lifter plate 3 up conversion, can meet the measurement of horizontal attitude, also all within the scope of protection.
Claims (6)
1. the sensing station adjusting device detecting for spindle rotation error, is characterized in that: fairlead is housed on base, forms sliding pair with the guide post being fixed on lifter plate, the axis of sliding pair is perpendicular to horizontal plane; Clamping screw one end is fixed on base, and the other end is processed with screw thread, from lifter plate, passes and is furnished with nut; Gripper shoe is fixed on lifter plate, fits with installing plate plane; On gripper shoe and installing plate, have keyway, two slip flat keys are consolidated into " ten " font, form and coordinate with corresponding keyway; Sensor installation support and limited block on installing plate, test bar is connected with main shaft to be measured, and in the end of test bar, centre bore is equipped with multidiameter.
2. the sensing station adjusting device detecting for spindle rotation error according to claim 1, is characterized in that: two sides at lifter plate are fixed with handle; Between lifter plate and fairlead, there is different " U " type pad of a plurality of thickness.
3. the sensing station adjusting device detecting for spindle rotation error according to claim 1, is characterized in that: described test bar coordinates with the stomidium of multidiameter, by holding screw, is locked.
4. the sensing station adjusting device detecting for spindle rotation error according to claim 1, is characterized in that: in test bar end, fix a spacer shell and process gap putting, act on spacer shell multidiameter is clamped by screw.
5. according to the sensing station adjusting device detecting for spindle rotation error described in claim 1 or 3 or 4, it is characterized in that: eddy current sensor is installed in installing plate center, excircle at eddy current sensor installation sleeve is installed three screw rods, and screw head is higher than eddy current sensor.
6. the sensing station adjusting device detecting for spindle rotation error according to claim 1 and 2, is characterized in that: after turning 90 ° of described gripper shoe, be arranged on lifter plate, for horizontal main axis, detect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320334702.4U CN203418369U (en) | 2013-06-09 | 2013-06-09 | Sensor position adjusting device for rotation error detection of main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320334702.4U CN203418369U (en) | 2013-06-09 | 2013-06-09 | Sensor position adjusting device for rotation error detection of main shaft |
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| Publication Number | Publication Date |
|---|---|
| CN203418369U true CN203418369U (en) | 2014-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320334702.4U Withdrawn - After Issue CN203418369U (en) | 2013-06-09 | 2013-06-09 | Sensor position adjusting device for rotation error detection of main shaft |
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| Country | Link |
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| CN (1) | CN203418369U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341789A (en) * | 2013-06-09 | 2013-10-09 | 沈阳机床(集团)有限责任公司 | Sensor position adjusting device for spindle rotation error detection |
| CN110757252A (en) * | 2019-11-05 | 2020-02-07 | 中信戴卡股份有限公司 | Wheel machining anti-collision device and method |
| CN114061945A (en) * | 2021-11-15 | 2022-02-18 | 安徽理工大学 | Precision spindle rotation error measurement and separation experimental device |
-
2013
- 2013-06-09 CN CN201320334702.4U patent/CN203418369U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341789A (en) * | 2013-06-09 | 2013-10-09 | 沈阳机床(集团)有限责任公司 | Sensor position adjusting device for spindle rotation error detection |
| CN110757252A (en) * | 2019-11-05 | 2020-02-07 | 中信戴卡股份有限公司 | Wheel machining anti-collision device and method |
| CN114061945A (en) * | 2021-11-15 | 2022-02-18 | 安徽理工大学 | Precision spindle rotation error measurement and separation experimental device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140205 Effective date of abandoning: 20150708 |
|
| RGAV | Abandon patent right to avoid regrant |