CN206930388U - Ball screw assembly, moment detector - Google Patents
Ball screw assembly, moment detector Download PDFInfo
- Publication number
- CN206930388U CN206930388U CN201720694656.7U CN201720694656U CN206930388U CN 206930388 U CN206930388 U CN 206930388U CN 201720694656 U CN201720694656 U CN 201720694656U CN 206930388 U CN206930388 U CN 206930388U
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- ball screw
- screw assembly
- connector
- stepping cylinder
- fixedly connected
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Abstract
A kind of ball screw assembly, moment detector, including the Force sensor being detachably connected with ball screw assembly, Force sensor include：Arc fixed part, including the arcuate member and the first connector being fixedly connected, arcuate member carry out being bonded fixation with the curved portions of rolling ball screw pair screw nut；Arc stretching structure, the first telescopic arm of the first stepping cylinder are fixedly connected with the termination of the first connector；Power test section, including the straight member being fixedly connected and the second connector, straight member be arranged in parallel and are bonded with the side of the rectangular parallelepiped structure of rolling ball screw pair screw nut, and the joint place of straight member and rectangular parallelepiped structure sets force sensor；Power detects stretching structure, second telescopic arm of the second stepping cylinder is fixedly connected with the termination of the second connector, ball screw assembly, moment detector can carry out moment inspecting to the ball screw assembly, of different model, when carrying out moment inspecting to ball wire bar pair, the nut of ball screw assembly, is fixed automatically for Force sensor, it is not necessary to manual operation.
Description
Technical field
It the utility model is related to precision instrument detection technique field, and in particular to a kind of ball screw assembly, moment detector.
Background technology
Ball screw assembly, also known as ball wire bar pair, ball screw pair.By leading screw and two, nut is supporting forms.It is mesh
Precision highest is also the most frequently used transmission device in driving front machinery.Ball screw assembly, is the main work(of NC machine tool feed system
Energy part, with ball screw assembly, practical work process, moving component fretting wear can cause pretightning force to be lost, and moment of friction also can
Change therewith, therefore the transmission accuracy of ball screw assembly, is relevant with its moment of friction.Moment of friction is excessive to reduce transmission efficiency,
Its extremely jiggly performance have impact on the positioning precision of ball-screw, and it directly causes energy loss and temperature rise, undue temperature rise
Influence of thermal deformation positioning precision, and unstable wear, reduction lubricant effect are produced, shortens the service life of ball-screw.
The Chinese patent of Application No. 201010115927.1, Publication No. 101769805A, a kind of parallel bars ball-screw
Friction torque characteristics are test bed, including pedestal and on pedestal by control system control first, second servo
Motor, the first servomotor are used to drive ball-screw to be tested, and the second servomotor, which drives, benchmark ball-screw, benchmark rolling
The both sides of ballscrew are separately installed with line slideway, and two line slideway tops are provided with workbench, the workbench and benchmark ball
Benchmark nut on leading screw is mutually fixed, and force cell is provided with workbench, is had for installed in ball-screw to be tested
Nut sleeve on nut, the cantilever being in contact with the test side of force cell is provided with nut sleeve, by ball wire to be tested
After thick stick engages with the first servomotor, the corresponding letter of the moment of friction of ball-screw to be tested is collected using force cell
Number, the size for effectively measuring Ball Screw Pair Friction Moment is realized, to help ball screw assembly, product quality and lifting number is improved
Control the dynamic property of lathe.Include the nut schematic diagram of ball screw assembly, as shown in Figure 1, including two curved portions and one it is rectangular
Body structure, the workbench are carried out to two curved portions and a rectangular parallelepiped structure respectively when detection is fixed to nut
Fitting is fixed and is detected by force cell, but because the model difference of ball screw assembly, can cause its nut solid
Timing can also have different models, and can not be adjusted with the fixed structure of nut because this is test bed, cause the survey
Two curved portions of the screw pair of different model and a rectangular parallelepiped structure can not be fixed for examination experimental bench, reduce it
Practicality.
Utility model content
Therefore, be to overcome in the prior art can only be to the ball of single model for the technical problems to be solved in the utility model
Lead screw pair carries out defect caused by moment inspecting.
Therefore, a kind of ball screw assembly, moment detector is provided, including：
The final drive shaft and driven shaft of fixation are abutted with ball screw assembly, respectively, described final drive shaft is filled by a transmission
Put and be connected with alternating-current variable frequency motor；
Also include the Force sensor being detachably connected with the ball screw assembly, described Force sensor includes：
Arc fixed part, including the arcuate member and the first connector being fixedly connected, described arcuate member and ball screw assembly,
The curved portions of nut carry out fitting fixation；
Arc stretching structure, including the first stepping cylinder, the first telescopic arm of first stepping cylinder and described first
The termination of connector is fixedly connected；
Power test section, including the straight member being fixedly connected and the second connector, the straight member and rolling ball screw pair screw nut
The side of rectangular parallelepiped structure be arranged in parallel and be bonded, the joint place of the straight member and rectangular parallelepiped structure sets strong sensing
Device；
Power detects stretching structure, including the second stepping cylinder, the second telescopic arm of second stepping cylinder and described the
The termination of two connectors is fixedly connected；
Also include computer, be connected with the force snesor, for showing the data of force snesor output.
Further, described arc fixed part is arranged to two, respectively with two curved portions of rolling ball screw pair screw nut
Fitting is corresponding one by one.
Further, described Force sensor includes the set casing that middle part is provided through hole；
Described the first stepping cylinder, the second stepping cylinder are respectively arranged inside the set casing；
The first described connector and one end of the second connector respectively with first stepping cylinder, the second stepping cylinder
It is fixedly connected, the other end is worn be incident upon at through hole respectively；
The arcuate member and straight member being connected respectively with first connector and the second connector are located at the through hole.
Further, described ball screw assembly, moment detector also includes slide rail, and described set casing is provided with and institute
State the chute of slide rail cooperation
Further, described chute and slide rail be arranged in parallel, and chute and slide rail set at least two groups respectively positioned at described
The both sides up and down of ball screw assembly,.
Further, the first described stepping cylinder and the second stepping cylinder are connected with the computer respectively, described
Arcuate member is provided with first pressure sensor, and described straight member is provided with second pressure sensor and infrared ray Distance-sensing
Device, described first pressure sensor, second pressure sensor and infrared ray range sensor are respectively by first pressure data,
Two pressure datas and the first range data are transferred to computer, and the first described stepping cylinder and the second stepping cylinder have following
Control method, described control method include：
Wherein F1For first pressure data, F2For second pressure data, S1For the first range data.
Further, described Force sensor includes gland, and described gland is located at the inner side of the fixing hole,
It is equipped with the external screw thread of the ball screw assembly,.
Technical solutions of the utility model, have the following advantages that：
1. ball screw assembly, moment detector provided by the utility model can be carried out to the ball screw assembly, of different model
Moment inspecting, when carrying out moment inspecting to ball wire bar pair, Force sensor is consolidated to the nut of ball screw assembly, automatically
It is fixed, it is not necessary to which that artificial operate, and realizes automation manipulation.
2. computer controls the first stepping cylinder to work according to control method, arcuate member can be made to rolling ball screw pair screw nut
Curved portions excessive pressure will not be produced to it when being supported, and then avoid frictional force therebetween it is excessive and to rolling
The accuracy of detection of ballscrew secondary moment has an impact；
3. computer controls the second stepping cylinder to work according to control method, straight member can be made not produced to rectangular parallelepiped structure
Make closely be bonded therebetween on the premise of raw pressure, so avoid therebetween pressure be present and to ball-screw
The accuracy of detection of secondary moment has an impact.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the nut structure diagram of ball screw assembly,；
Fig. 2 is the structural representation of ball screw assembly, moment detector；
Fig. 3 just cuts open for Force sensor to be attempted.
1st, final drive shaft；2nd, driven shaft；3rd, ball screw assembly,；31st, nut；311st, curved portions；312nd, rectangular parallelepiped structure；4、
Guide rail；5th, Force sensor；51st, the first stepping cylinder；511st, the first telescopic arm；52nd, the first connector；53rd, arcuate member；531、
First pressure sensor；54th, the second stepping cylinder；541st, the second telescopic arm；55th, the second connector；56th, straight member；561st,
Two pressure sensors；562nd, infrared ray range sensor；57th, gland；6th, transmission device；7th, alternating-current variable frequency motor；8th, amplify
Device；9th, computer.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.In addition, following institute
As long as involved technical characteristic does not form conflict can phase each other in the utility model different embodiments of description
Mutually combine.
A kind of ball screw assembly, moment detector, its structural representation as shown in Figure 2, including final drive shaft 1 and driven shaft
2, final drive shaft 1 and driven shaft 2 abut with ball screw assembly, 3, are fixed respectively, and final drive shaft 1 is by a transmission device 6 with exchanging
Variable-frequency motor 7 is connected, and alternating-current variable frequency motor 7 is connected with computer 9, and the signal that computer 9 exports analog quantity passes through analog-to-digital conversion
Current information to alternating-current variable frequency motor 7, the alternating-current variable frequency motor 7 that device changes into analog quantity receives the current information of the analog quantity
After be operated and final drive shaft 1 imparted power to by transmission device 6, final drive shaft 1 drives ball screw assembly, 3, driven
Axle 2 is rotated.
In one example, in addition to Force sensor 5, it is detachably connected with the nut 31 of ball screw assembly, 3, ball-screw
Secondary moment detector is respectively arranged with guide rail 4 in the both sides up and down of ball screw assembly, 3, and Force sensor 5 coordinates with guide rail 4 respectively
Work, level is carried out in the internal thread along ball screw assembly, 3 of rotations lower nut 31 and Force sensor 5 of ball screw assembly, 3
Mobile, Force sensor 5 is supported by guide rail 4, moved horizontally along guide rail 4.
Force sensor 5 as shown in Figure 3, which just cuts open, to be attempted, including arc fixed part and power test section, arc fixed part and power
Ball screw assembly, 3 can be fixed respectively for test section and moment inspecting.Wherein arc fixed part includes the arc being fixedly connected
The connector 52 of shape part 53 and first, arcuate member 53 carry out being bonded fixation, arc with the curved portions 311 of the nut 31 of ball screw assembly, 3
Part 53, which is arranged to arc, to be bonded with the split-phase of curved portions 311 of nut 31, play a part of support to it, and the nut 31
Curved portions 311, which may be alternatively located at arcuate member 53, to be rotated.Also include arc stretching structure, including the first stepping cylinder 51, the
First telescopic arm 511 of one stepping cylinder 51 is fixedly connected with the termination of the first connector 52, can by the first stepping cylinder 51
Control the first telescopic arm 511, the first connector 52 and arcuate member 53 to carry out stretching routine respectively, and then control arcuate member 53
The purpose being bonded with the nut 31 of ball screw assembly, 3.
Wherein arc fixed part is preferably arranged to two, respectively with two curved portions 311 1 of the nut 31 of ball screw assembly, 3
One fitting is corresponding, in actual experiment operating process, can be adjusted to vertically to place by the nut 31 of ball screw assembly, 3, i.e. nut
31 two curved portions 311 are set one on the other.Facilitate that curved portions 311 are supported to nut 31 and straight member 56 is to spiral shell
The moment of torsion of mother 31 is detected.
Power test section includes the connector 55 of straight member 56 and second being fixedly connected, straight member 56 and the spiral shell of ball screw assembly, 3
The side of the rectangular parallelepiped structure 312 of mother 31 is be arranged in parallel and is bonded, and the joint place of straight member 56 and rectangular parallelepiped structure 312 is provided with
Force snesor, during ball screw assembly, 3 is rotated, frictional force, nut between ball screw assembly, 3 and nut 31 be present
31 have the torque for prolonging the rotation of its central point under the drive of frictional force, and power is loaded onto by nut 31 under the trend of this torque
On the force snesor for the straight member 56 being in contact with it, the torque data of analog quantity are transferred to meter by force snesor by amplifier 8
Calculation machine 9.Also include power detection stretching structure, including the second stepping cylinder 54, the second telescopic arm 541 of the second stepping cylinder 54 with
The termination of second connector 55 is fixedly connected, and by the second stepping cylinder 54 the second telescopic arm 541, second can be controlled to connect respectively
Part 55 and straight member 56 carry out stretching routine, and then control the nut 31 of straight member 56, force snesor and ball screw assembly, 3
The purpose of fitting.
In one example, Force sensor 5 includes the set casing that middle part is provided through hole, wherein the first stepping cylinder
51st, the second stepping cylinder 54 is respectively arranged inside set casing；One end of first connector 52 and the second connector 55 respectively with
First stepping cylinder 51, the second stepping cylinder 54 are fixedly connected, and the other end is worn be incident upon at through hole respectively；With the first connector 52
The arcuate member 53 and straight member 56 connected respectively with the second connector 55 is located at through hole.Set casing is provided with and above-mentioned slide rail
The contact site of the chute of cooperation, slide rail and chute is preferably arranged to metal material because the coefficient of friction between metal material compared with
It is low, facilitate set casing, Force sensor 5 to be moved horizontally along slide rail.
In one example, the first stepping cylinder 51 and the second stepping cylinder 54 are connected with computer 9 respectively, and arcuate member 53 is set
First pressure sensor 531 is equipped with, straight member 56 is provided with second pressure sensor 561 and infrared ray range sensor 562, the
One pressure sensor 531, second pressure sensor 561 and infrared ray range sensor 562 are respectively by first pressure data, second
Pressure data and the first range data are transferred to computer 9, and the first stepping cylinder 51 and the second stepping cylinder 54 have following control
Method processed, control method include：
Wherein F1It is pressure between arcuate member 53 and curved portions 311, F for first pressure data2It is for second pressure data
Pressure, S between straight member 56 and rectangular parallelepiped structure 3121For the relatively heavy force value that the first range data, G are the bolt, wherein
Relatively heavy force value is that employee gets according to the specification of ball screw assembly, 3, mounting means.
Above-mentioned control method is deferred in control of its Computer 9 to the first stepping cylinder 51 and the second stepping cylinder 54, the
One pressure data F1It is less than G more than 0, arcuate member 53 can be avoided to be supported in the curved portions 311 to the nut 31 of ball screw assembly, 3
Shi Buhui produces excessive pressure to it, so avoid frictional force therebetween it is excessive and to the torque of ball screw assembly, 3
Accuracy of detection has an impact.
F2=0,0≤S1≤ 0.01, wherein second pressure data are equal to 0, ensure straight member 56 in the second stepping cylinder 54
When being bonded with rectangular parallelepiped structure 312, make pressure is not present therebetween, computer 9 controls second step air inlet according to control method
Cylinder 54 works, and straight member 56 can be made to make on the premise of pressure is not produced to rectangular parallelepiped structure 312 therebetween can be close
Fitting, and then avoid and pressure therebetween be present and the accuracy of detection of the torque of ball screw assembly, 3 is had an impact, sense power
Detection of the device to the moment of torsion of nut 31 is more accurate.
Wherein Force sensor 5 also includes gland, and described gland is located at the inner side of the fixing hole, with the rolling
The external screw thread of ballscrew pair 3 is equipped with, and gland is located at the outer of ball screw assembly, 3 in the rotary course of ball screw assembly, 3
Moved in screw thread, and then drive Force sensor 5 to carry out the movement in horizontal direction, reduce nut 31 and Force sensor
5 tractive force when being synchronized with the movement therebetween.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among the protection domain that variation is created still in the utility model.
Claims (6)
1. a kind of ball screw assembly, moment detector, including：
The final drive shaft (1) and driven shaft (2) of fixation are abutted with ball screw assembly, (3) respectively, described final drive shaft (1) passes through
One transmission device (6) is connected with alternating-current variable frequency motor (7)；
Characterized in that, also including the Force sensor (5) being detachably connected with the ball screw assembly, (3), described power passes
Induction device (5) includes：
Arc fixed part, including the arcuate member (53) and the first connector (52) being fixedly connected, described arcuate member (53) and rolling
The curved portions (311) of ballscrew pair (3) nut (31) carry out fitting fixation；
Arc stretching structure, including the first stepping cylinder (51), the first telescopic arm (511) of first stepping cylinder (51) with
The termination of first connector (52) is fixedly connected；
Power test section, including the straight member (56) and the second connector (55) being fixedly connected, the straight member (56) and ball wire
The side of the rectangular parallelepiped structure (312) of thick stick pair (3) nut (31) be arranged in parallel and is bonded, the straight member (56) and cuboid knot
The joint place of structure (312) sets force sensor；
Power detects stretching structure, including the second stepping cylinder (54), the second telescopic arm (541) of second stepping cylinder (54)
It is fixedly connected with the termination of second connector (55)；
Also include computer (9), be connected with the force snesor, for showing the data of force snesor output.
A kind of 2. ball screw assembly, moment detector according to claim 1, it is characterised in that described arc fixed part
Two are arranged to, fitting is corresponding one by one with two curved portions (311) of ball screw assembly, (3) nut (31) respectively.
A kind of 3. ball screw assembly, moment detector according to claim 2, it is characterised in that
Described Force sensor (5) includes the set casing that middle part is provided through hole；
Described the first stepping cylinder (51), the second stepping cylinder (54) are respectively arranged inside the set casing；
Described the first connector (52) and one end of the second connector (55) respectively with first stepping cylinder (51), second
Stepping cylinder (54) is fixedly connected, and the other end is worn be incident upon at through hole respectively；
The arcuate member (53) and straight member (56) being connected respectively with first connector (52) and the second connector (55) are located at
At the through hole.
A kind of 4. ball screw assembly, moment detector according to claim 3, it is characterised in that described ball screw assembly,
(3) moment detector also includes slide rail, and described set casing is provided with the chute coordinated with the slide rail.
A kind of 5. ball screw assembly, moment detector according to claim 4, it is characterised in that described chute and slide rail
It is arranged in parallel, chute and slide rail set at least two groups both sides up and down for being located at the ball screw assembly, (3) respectively.
A kind of 6. ball screw assembly, moment detector according to claim 1, it is characterised in that described Force sensor
(5) gland is included, described gland is located at the inner side of the fixing hole, matched somebody with somebody with the external screw thread of the ball screw assembly, (3)
Close and set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720694656.7U CN206930388U (en) | 2017-06-14 | 2017-06-14 | Ball screw assembly, moment detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720694656.7U CN206930388U (en) | 2017-06-14 | 2017-06-14 | Ball screw assembly, moment detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206930388U true CN206930388U (en) | 2018-01-26 |
Family
ID=61345311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720694656.7U Withdrawn - After Issue CN206930388U (en) | 2017-06-14 | 2017-06-14 | Ball screw assembly, moment detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206930388U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024307A (en) * | 2017-06-14 | 2017-08-08 | 北京霹西自动化技术有限公司 | Ball screw assembly, moment detector |
-
2017
- 2017-06-14 CN CN201720694656.7U patent/CN206930388U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024307A (en) * | 2017-06-14 | 2017-08-08 | 北京霹西自动化技术有限公司 | Ball screw assembly, moment detector |
| CN107024307B (en) * | 2017-06-14 | 2023-07-07 | 北京霹西自动化技术有限公司 | Moment detector for ball screw pair |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181023 Address after: 075400 No. 6 Weiyi Road, Equipment Manufacturing Industrial Park, Shacheng High-tech Industrial Development Zone, Huailai County, Zhangjiakou City, Hebei Province Patentee after: Huailai Power Automation Technology Co.,Ltd. Address before: 100000 5, 514, new materials and business building, 7 Feng Hui Road, Haidian District, Beijing. Patentee before: BEIJING PIXI AUTOMATION TECHNOLOGY Co.,Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180126 Effective date of abandoning: 20230707 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180126 Effective date of abandoning: 20230707 |