CN205785806U - A kind of ball screw assembly, Static stiffness measurement apparatus with rotation compensation function - Google Patents
A kind of ball screw assembly, Static stiffness measurement apparatus with rotation compensation function Download PDFInfo
- Publication number
- CN205785806U CN205785806U CN201620465265.3U CN201620465265U CN205785806U CN 205785806 U CN205785806 U CN 205785806U CN 201620465265 U CN201620465265 U CN 201620465265U CN 205785806 U CN205785806 U CN 205785806U
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- leading screw
- measurement apparatus
- rotation compensation
- measuring basis
- sensor
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Abstract
This utility model relates to a kind of ball screw assembly, Static stiffness measurement apparatus with rotation compensation function, and this device includes clamp of sensor, leading screw measuring basis, leading screw measuring basis fixing device, nut measurement apparatus and rotation compensation device.Described nut measurement apparatus is arranged on the flange of leading screw to be measured, and rotation compensation device is arranged in nut measurement apparatus；Leading screw measuring basis is enclosed within tested leading screw, clamp of sensor and leading screw measuring basis fixing device are set on leading screw measuring basis, leading screw measuring basis fixing device is positioned at the middle part of leading screw measuring basis, clamp of sensor is positioned at the periphery of leading screw measuring basis fixing device, and wherein rotation compensation device runs through leading screw measuring basis and is connected in nut measurement apparatus.This utility model is easily installed, and test data repeatability is high, and measurement data is true and reliable.
Description
Technical field
This utility model belongs to ball screw assembly, rigidity detection field, a kind of ball wire with rotation compensation function
Thick stick pair Static stiffness measurement apparatus.
Background technology
Ball screw assembly, is widely used in feed system.Along with improving constantly of ball screw assembly, speed, its vibration problem day
Benefit is prominent, has a strong impact on the positioning precision of feed system, precision holding capacity.Ball screw assembly, rigidity has a strong impact on feeding
Drive system performance and Oscillation Amplitude.Ball screw assembly, rigidity deficiency become Digit Control Machine Tool, automation equipment to high speed,
The major obstacle of high accuracy development.
Ball screw assembly, Static stiffness measurement at present has a lot of deficiency, as during measurement, sensor and lead screw shaft linear distance are solid
Fixed, measure the tested length of leading screw every time and do not fix, sensor inconvenience regulation etc..And through a large amount of ball screw assembly, rigidity
Detection test, finds that in process of the test, ball screw assembly, can produce rotation, and only detects leading screw in existing measurement apparatus
Axial deformation, and do not detect the rotational deformation of leading screw.
Utility model content
This utility model is solved the technical problem that to be to provide a kind of ball screw assembly, Static stiffness with rotation compensation function
Measurement apparatus.
The technical solution realizing this utility model purpose is: a kind of ball screw assembly, with rotation compensation function is quiet just
Degree measurement apparatus, including clamp of sensor, leading screw measuring basis, leading screw measuring basis fixing device, nut measurement apparatus
With rotation compensation device.
Described nut measurement apparatus is arranged on the flange of leading screw to be measured, and rotation compensation device is arranged on nut measurement apparatus
On；Leading screw measuring basis is enclosed within tested leading screw, leading screw measuring basis arranges clamp of sensor and leading screw measuring basis is solid
Determining device, leading screw measuring basis fixing device is positioned at the middle part of leading screw measuring basis, and clamp of sensor is positioned at leading screw and measures base
The periphery of quasi-fixing device, wherein rotation compensation device runs through leading screw measuring basis and is connected in nut measurement apparatus.
Compared with prior art, its remarkable advantage is this utility model: 1) this utility model has rotation and reverses compensation merit
Can, get rid of the small workpiece such as the axial displacement of initiation, leading screw measuring basis that rotate of leading screw caused due to system lash and reverse
The axial deflection test error that the axial deformation caused brings.Effectively raise actual rigidity measurement accuracy.2)
Axial comprehensive displacement of the present utility model is by 2 or 3 sensor measurements, it is possible to ensure that sensor is positioned at position accurately,
The displacement in leading screw axle center can be drawn accurately, eliminate leading screw deformation the most not parallel, sensing station is repeated not
The measurement error that the factor such as good is brought.3) this utility model is greatly reduced the tested length of leading screw, eliminates due to silk
Thick stick stretches out the long error causing depression bar to deform and to bring, and improves the accuracy of test.4) this utility model can lead to
Cross gauge block and accurately control the spacing of leading screw measuring basis and nut measurement apparatus, greatly improve the repeatable accuracy of test.
5) change tested exemplar and have only to adjusting screw measuring basis fixing device, simple and convenient.6) sensing of the present utility model
Device device, reliably, is easy to regulation.This utility model can measure the rotational deformation of leading screw, change axial to ball screw assembly,
Shape compensates so that data are more accurate.
Below in conjunction with the accompanying drawings this utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the population structure of a kind of ball screw assembly, Static stiffness measurement apparatus with rotation compensation function of this utility model
Installation diagram.
Fig. 2 is this utility model clamp of sensor structural representation.
Fig. 3 is this utility model leading screw measuring basis structural representation.
Fig. 4 is this utility model leading screw measuring basis fixture structure schematic diagram.
Fig. 5 is interior elastic conical drogue structural representation in this utility model leading screw measuring basis fixing device.
Fig. 6 is this utility model nut measurement apparatus structural representation.
Fig. 7 is this utility model rotation compensation apparatus structure schematic diagram.
Fig. 8 is this utility model flange connector structural representation.
Detailed description of the invention
In conjunction with Fig. 1, a kind of ball screw assembly, Static stiffness measurement apparatus with rotation compensation function of the present utility model, bag
Include clamp of sensor I, leading screw measuring basis II, leading screw measuring basis fixing device III, nut measurement apparatus IV and rotate
Compensation device V.
Described nut measurement apparatus IV is arranged on the flange of leading screw to be measured, and rotation compensation device V is arranged on nut and measures dress
Put on IV；Leading screw measuring basis II is enclosed within tested leading screw, and leading screw measuring basis II arranges clamp of sensor I and leading screw
Measuring basis fixing device III, leading screw measuring basis fixing device III is positioned at the middle part of leading screw measuring basis II, and sensor presss from both sides
Tool I is positioned at the periphery of leading screw measuring basis fixing device III, and wherein rotation compensation device V runs through leading screw measuring basis II also
It is connected in nut measurement apparatus IV.
Be connected on described clamp of sensor I sensor, and the quantity of clamp of sensor I is two, and these two fixtures are with 180
° it is symmetrically distributed on leading screw measuring basis II；Described clamp of sensor I includes fixture shell 1, thread bush 2, screw rod 3
With nylon plug 4, described fixture shell 1 is fixed on leading screw measuring basis II, fixture shell 1 internal equipped with thread bush 2,
Screw rod 3 and nylon plug 4, described nylon plug 4 one end has female thread, the other end to have half slot, wherein female thread and screw rod
The external screw thread of 3 matches, and thread bush 2 is enclosed within screw rod 3 and threadeds with fixture shell 1, and screw rod 3 also sets up
Stage clip, this stage clip, can be by nylon plug 4 and sensor by regulation thread bush 2 between thread bush 2 and nylon plug 4
Compress.
Or, described clamp of sensor I is connected sensor, and the quantity of clamp of sensor I is three, these three fixtures
It is distributed on leading screw measuring basis II with 120 °；Described clamp of sensor I includes fixture shell 1, thread bush 2, screw rod
3 and nylon plug 4, described fixture shell 1 is fixed on leading screw measuring basis II, fixture shell 1 internal equipped with thread bush 2,
Screw rod 3 and nylon plug 4, described nylon plug 4 one end has female thread, the other end to have half slot, wherein female thread and screw rod
The external screw thread of 3 matches, and thread bush 2 is enclosed within screw rod 3 and threadeds with fixture shell 1, and screw rod 3 also sets up
Stage clip, this stage clip, can be by nylon plug 4 and sensor by regulation thread bush 2 between thread bush 2 and nylon plug 4
Compress.
Described leading screw measuring basis fixing device III includes thread bush 11, outer elastic conical drogue 12, interior elastic conical drogue 13 and outer
Shell, described thread bush 11, outer elastic conical drogue 12, interior elastic conical drogue 13 be respectively positioned in shell, wherein in elastic conical drogue 13
Being enclosed within leading screw, the outside wall surface of interior elastic conical drogue 13 is the conical surface, the outside wall surface of interior elastic conical drogue 13 and outer elastic conical drogue 12
Internal face match, thread bush 11 is positioned at the top of outer elastic conical drogue 12, for by outer elastic conical drogue 12 and interior bullet
Property tapered sleeve 13 compresses, so that leading screw measuring basis fixing device III is fixed on leading screw.
The conical degree of conical surface of described interior elastic conical drogue 13 is 6 °, and the circumference of interior elastic conical drogue 13 uniformly has a groove, adjacent two
Individual groove in opposite direction.
Described nut measurement apparatus IV be shaped as disk, it has symmetrical isometry block guiding groove 16, nut is surveyed
The rotation compensation device mounting groove 17 placing rotation compensation device V is also had on amount device IV, same in nut measurement apparatus IV
Shi Kaiyou places the chromium plating block placing trough 18 of chromium plating block, and sensor contact contacts with chromium plating block.
Described rotation compensation device V includes rotation compensation measurement column 19 and connecting plate 20, and rotation compensation measurement column 19 passes through
Connecting plate 20 is fixed in nut measurement apparatus IV, and the face of cylinder, rotation compensation measurement column 19 upper end is become plane by milling, and this is put down
Face contacts with the contact of detection leading screw rotational deformation quantity sensor.The quantity of rotation compensation measurement column 19 is 3.
Below in conjunction with embodiment, this utility model is done further detailed description.
Embodiment 1
The utility model discloses a kind of ball screw assembly, Static stiffness measurement apparatus with rotation compensation function, including sensing
Device fixture I, leading screw measuring basis II, leading screw measuring basis fixing device III, nut measurement apparatus IV, rotation compensation fill
Put V.Clamp of sensor fixes sensor, can 120 ° be uniformly distributed and be arranged on leading screw measuring basis II.Leading screw is measured
Benchmark fixing device uses inside and outside elastic conical drogue, nut to compress mode and be fixed on leading screw by leading screw measuring basis.And can lead to
Cross rotation compensation device V and measure rotational deformation amount, thus the detection of ball screw assembly, Static stiffness is compensated.
Described clamp of sensor I includes fixture shell 1, thread bush 2, screw rod 3, nylon plug 4.Nylon plug 4 one end has
Female thread, is connected with one end external screw thread of screw rod 3.Nylon plug 4 other end has half-arc groove, with sensor cylinder
Match in face.Thread bush 2 is enclosed within screw rod 3, has stage clip between thread bush 2 and nylon plug 4, such that it is able to by adjusting
Joint thread bush 2 jam sensor.Select clamp of sensor I quantity to be 3,120 ° during measurement to be uniformly distributed.
Select leading screw measuring basis II to position hole 5, hole, location 5 and fixture shell 1 matched in clearance during measurement, and pass through spiral shell
Female connection, it is ensured that shaft position sensor 120 ° is distributed on the identical graduation circle concentric with lead screw shaft.Rotation compensation
Device installing hole [8] [9] [10] and rotation compensation measurement column 19 interference fits.
Described leading screw measuring basis fixing device III includes thread bush 11, outer elastic conical drogue 12, interior elastic conical drogue 13.Outward
Elastic conical drogue 12, interior elastic conical drogue 13 all have 120 ° of equally distributed grooves 14 15, and its opening direction is contrary, outside making
Elastic conical drogue 12, interior elastic conical drogue 13 shrink, expand uniformly.Outer elastic conical drogue 12, interior elastic conical drogue 13 are with identical
Tapering match, tapering is 6 °, and then materials'use 65Mn quenches so that it is has good elasticity, facilitates spiral shell
The inside and outside elastic conical drogue of stricture of vagina set 11 compression, therefore can make leading screw measuring basis II be fixed on certain of leading screw, with leading screw
Keep geo-stationary.
Described nut measurement apparatus IV includes isometry block guiding groove 16, rotation compensation device mounting groove 17, chromium plating block placing trough
18.Isometry block guiding groove 16 is easy to put into isometry block when measurement apparatus is installed, it is ensured that the tested length of leading screw is consistent every time；Rotation
Turn placement connecting plate 20 in compensation device mounting groove 17, be connected by screw rotation compensation device V and nut measurement apparatus
Ⅳ.In chromium plating block placing trough 18,45 steel strips of placement surface chromium plating, are connected by screw, sensor contact and chromium plating
Face contacts, and surveyed data are more accurate.Flange connector 21 is by evenly distributed 6 screw holes and nut
Measurement apparatus IV connects, and flange connector 21 face of cylinder has 3 equally distributed screw holes, can by tightening screw
Flange connector 21 is made to keep geo-stationary with nut.
Described rotation compensation device V includes rotation compensation measurement column 19, connecting plate 20.Rotation compensation measurement column 19 upper end
The face of cylinder is become plane by milling, contacts with sensor contact, measures rotational deformation amount, by connecting plate 20 by rotation compensation
Measurement column 19 is connected with nut measurement apparatus IV.During measurement, the quantity of rotation compensation measurement column 19 is 3.
From the foregoing, it will be observed that this utility model has rotation compensates function with reversing, get rid of the leading screw caused due to system lash micro-
The little workpiece such as the axial displacement of initiation, leading screw measuring basis that rotate reverse the axial deformation measurement that the axial deformation caused brings
Examination error.Effectively raise actual rigidity measurement accuracy.
Embodiment 2
The utility model discloses a kind of ball screw assembly, Static stiffness measurement apparatus with rotation compensation function, including sensing
Device fixture I, leading screw measuring basis II, leading screw measuring basis fixing device III, nut measurement apparatus IV, rotation compensation fill
Put V.Clamp of sensor fixes sensor, can 180 ° symmetrical be arranged on leading screw measuring basis II.Leading screw is measured
Benchmark fixing device uses inside and outside elastic conical drogue, nut to compress mode and be fixed on leading screw by leading screw measuring basis.And can lead to
Cross rotation compensation device V and measure rotational deformation amount, thus the detection of ball screw assembly, Static stiffness is compensated.
Described clamp of sensor I includes fixture shell 1, thread bush 2, screw rod 3, nylon plug 4.Nylon plug 4 one end has
Female thread, is connected with one end external screw thread of screw rod 3.Nylon plug 4 other end has half-arc groove, with sensor cylinder
Match in face.Thread bush 2 is enclosed within screw rod 3, has stage clip between thread bush 2 and nylon plug 4, such that it is able to by adjusting
Joint thread bush 2 jam sensor.During measurement select clamp of sensor I quantity be 2,180 ° symmetrical.
Select leading screw measuring basis II to position hole 6, hole, location 6 and fixture shell 1 matched in clearance during measurement, and pass through spiral shell
Female connection, it is ensured that shaft position sensor 120 ° is distributed on the identical graduation circle concentric with lead screw shaft.Rotation compensation
Device installing hole [8] [9] [10] and rotation compensation measurement column 19 interference fits.
Described leading screw measuring basis fixing device III includes thread bush 11, outer elastic conical drogue 12, interior elastic conical drogue 13.Outward
Elastic conical drogue 12, interior elastic conical drogue 13 all have 120 ° of equally distributed grooves 14 15, and its opening direction is contrary, outside making
Elastic conical drogue 12, interior elastic conical drogue 13 shrink, expand uniformly.Outer elastic conical drogue 12, interior elastic conical drogue 13 are with identical
Tapering match, tapering is 6 °, and then materials'use 65Mn quenches so that it is has good elasticity, facilitates spiral shell
The inside and outside elastic conical drogue of stricture of vagina set 11 compression, therefore can make leading screw measuring basis II be fixed on certain of leading screw, with leading screw
Keep geo-stationary.
Described nut measurement apparatus IV includes isometry block guiding groove 16, rotation compensation device mounting groove 17, chromium plating block placing trough
18.Isometry block guiding groove 16 is easy to put into isometry block when measurement apparatus is installed, it is ensured that the tested length of leading screw is consistent every time；Rotation
Turn placement connecting plate 20 in compensation device mounting groove 17, be connected by screw rotation compensation device V and nut measurement apparatus
Ⅳ.In chromium plating block placing trough 18,45 steel strips of placement surface chromium plating, are connected by screw, sensor contact and chromium plating
Face contacts, and surveyed data are more accurate.Flange connector 21 is by evenly distributed 6 screw holes and nut
Measurement apparatus IV connects, and flange connector 21 face of cylinder has 3 equally distributed screw holes, can by tightening screw
Flange connector 21 is made to keep geo-stationary with nut.
Described rotation compensation device V includes rotation compensation measurement column 19, connecting plate 20.Rotation compensation measurement column 19 upper end
The face of cylinder is become plane by milling, contacts with sensor contact, measures rotational deformation amount, by connecting plate 20 by rotation compensation
Measurement column 19 is connected with nut measurement apparatus IV.The quantity selecting rotation compensation measurement column 19 during measurement is 3.
From the foregoing, it will be observed that this utility model has rotation compensates function with reversing, get rid of the leading screw caused due to system lash micro-
The little workpiece such as the axial displacement of initiation, leading screw measuring basis that rotate reverse the axial deformation measurement that the axial deformation caused brings
Examination error.Effectively raise actual rigidity measurement accuracy.
Claims (8)
1. a ball screw assembly, Static stiffness measurement apparatus with rotation compensation function, it is characterized in that, including clamp of sensor [I], leading screw measuring basis [II], leading screw measuring basis fixing device [III], nut measurement apparatus [IV] and rotation compensation device [V]；
Described nut measurement apparatus [IV] is arranged on the flange of leading screw to be measured, and rotation compensation device [V] is arranged in nut measurement apparatus [IV]；Leading screw measuring basis [II] is enclosed within tested leading screw, clamp of sensor [I] and leading screw measuring basis fixing device [III] are set on leading screw measuring basis [II], leading screw measuring basis fixing device [III] is positioned at the middle part of leading screw measuring basis [II], clamp of sensor [I] is positioned at the periphery of leading screw measuring basis fixing device [III], and wherein rotation compensation device [V] runs through leading screw measuring basis [II] and is connected in nut measurement apparatus [IV].
The ball screw assembly, Static stiffness measurement apparatus with rotation compensation function the most according to claim 1, it is characterized in that, the upper sensor that is connected of clamp of sensor [I], the quantity of clamp of sensor [I] is two, and these two fixtures are symmetrically distributed on leading screw measuring basis [II] with 180 °；Described clamp of sensor [I] includes fixture shell [1], thread bush [2], screw rod [3] and nylon plug [4], described fixture shell [1] is fixed on leading screw measuring basis [II], fixture shell [1] is internal equipped with thread bush [2], screw rod [3] and nylon plug [4], there is female thread described nylon plug [4] one end, the other end has half slot, wherein female thread matches with the external screw thread of screw rod [3], thread bush [2] is enclosed within screw rod [3] and above and threadeds with fixture shell [1], screw rod also sets up stage clip on [3], this stage clip is positioned between thread bush [2] and nylon plug [4], nylon plug [4] can be compressed with sensor by regulation thread bush [2].
The ball screw assembly, Static stiffness measurement apparatus with rotation compensation function the most according to claim 1, it is characterized in that, the upper sensor that is connected of clamp of sensor [I], the quantity of clamp of sensor [I] is three, and these three fixtures are distributed on leading screw measuring basis [II] with 120 °；Described clamp of sensor [I] includes fixture shell [1], thread bush [2], screw rod [3] and nylon plug [4], described fixture shell [1] is fixed on leading screw measuring basis [II], fixture shell [1] is internal equipped with thread bush [2], screw rod [3] and nylon plug [4], there is female thread described nylon plug [4] one end, the other end has half slot, wherein female thread matches with the external screw thread of screw rod [3], thread bush [2] is enclosed within screw rod [3] and above and threadeds with fixture shell [1], screw rod also sets up stage clip on [3], this stage clip is positioned between thread bush [2] and nylon plug [4], nylon plug [4] can be compressed with sensor by regulation thread bush [2].
The ball screw assembly, Static stiffness measurement apparatus with rotation compensation function the most according to claim 1, it is characterised in that described leading screw measuring basis fixing device [III] include thread bush [11], outer elastic conical drogue [12],
Interior elastic conical drogue [13] and shell, described thread bush [11], outer elastic conical drogue [12], interior elastic conical drogue [13] is respectively positioned in shell, interior elastic conical drogue [13] is enclosed within leading screw, the outside wall surface of interior elastic conical drogue [13] is the conical surface, the outside wall surface of interior elastic conical drogue [13] matches with the internal face of outer elastic conical drogue [12], thread bush [11] is positioned at the top of outer elastic conical drogue [12], for outer elastic conical drogue [12] is compressed with interior elastic conical drogue [13], so that leading screw measuring basis fixing device [III] is fixed on leading screw.
The ball screw assembly, Static stiffness measurement apparatus with rotation compensation function the most according to claim 4, it is characterized in that, the conical degree of conical surface of interior elastic conical drogue [13] is 6 °, and the circumference of interior elastic conical drogue [13] uniformly has groove, adjacent two grooves in opposite direction.
The ball screw assembly, Static stiffness measurement apparatus with rotation compensation function the most according to claim 1, it is characterized in that, nut measurement apparatus [IV] be shaped as disk, symmetrical isometry block guiding groove [16] is had on it, rotation compensation device mounting groove [17] placing rotation compensation device [V] is also had in nut measurement apparatus [IV], having chromium plating block placing trough [18] placing chromium plating block in nut measurement apparatus [IV], sensor contact contacts with chromium plating block simultaneously.
The ball screw assembly, Static stiffness measurement apparatus with rotation compensation function the most according to claim 1, it is characterized in that, described rotation compensation device [V] includes rotation compensation measurement column [19] and connecting plate [20], rotation compensation measurement column [19] is fixed in nut measurement apparatus [IV] by connecting plate [20], rotation compensation measurement column [19] face of cylinder, upper end is become plane by milling, and this plane contacts with the contact of detection leading screw rotational deformation quantity sensor.
The ball screw assembly, Static stiffness measurement apparatus with rotation compensation function the most according to claim 7, it is characterised in that the quantity of rotation compensation measurement column [19] is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620465265.3U CN205785806U (en) | 2016-05-20 | 2016-05-20 | A kind of ball screw assembly, Static stiffness measurement apparatus with rotation compensation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620465265.3U CN205785806U (en) | 2016-05-20 | 2016-05-20 | A kind of ball screw assembly, Static stiffness measurement apparatus with rotation compensation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205785806U true CN205785806U (en) | 2016-12-07 |
Family
ID=58117045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620465265.3U Withdrawn - After Issue CN205785806U (en) | 2016-05-20 | 2016-05-20 | A kind of ball screw assembly, Static stiffness measurement apparatus with rotation compensation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205785806U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841958A (en) * | 2016-05-20 | 2016-08-10 | 南京理工大学 | Ball screw pair static stiffness measuring device having rotation compensation function |
-
2016
- 2016-05-20 CN CN201620465265.3U patent/CN205785806U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841958A (en) * | 2016-05-20 | 2016-08-10 | 南京理工大学 | Ball screw pair static stiffness measuring device having rotation compensation function |
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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 | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161207 Effective date of abandoning: 20180925 |