CN101551243B - Ball bar ruler - Google Patents

Ball bar ruler Download PDF

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Publication number
CN101551243B
CN101551243B CN200910064728XA CN200910064728A CN101551243B CN 101551243 B CN101551243 B CN 101551243B CN 200910064728X A CN200910064728X A CN 200910064728XA CN 200910064728 A CN200910064728 A CN 200910064728A CN 101551243 B CN101551243 B CN 101551243B
Authority
CN
China
Prior art keywords
ruler
blade
ball bar
base
bar ruler
Prior art date
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
Application number
CN200910064728XA
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Chinese (zh)
Other versions
CN101551243A (en
Inventor
庞永星
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LUOYANG GANHE INSTRUMENT CO Ltd
Original Assignee
LUOYANG GANHE INSTRUMENT CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LUOYANG GANHE INSTRUMENT CO Ltd filed Critical LUOYANG GANHE INSTRUMENT CO Ltd
Priority to CN200910064728XA priority Critical patent/CN101551243B/en
Publication of CN101551243A publication Critical patent/CN101551243A/en
Application granted granted Critical
Publication of CN101551243B publication Critical patent/CN101551243B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The present invention relates to a ball bar ruler which includes a ruler body and a reading head passed through the ruler body. The rule body has an annual shape, at least three support seats are set along circumferential direction of the ruler body; the support seat includes a subbase, a support seat is revoluted assembled on a revolution axis, an axial line of the revolution axis is parallel with a plane located on the ruler body and crosses with the axis line of the ruler body, one end of the support seat far away the subbase is equipped with a support body with a locating slot, the ruler body location fits with the locating slot of the support body, one end of the support arm far away the subbase also is equipped with an electro-magnet for absorbing the ruler body, a torsion spring is set between the support arm and the subbase; the ball bar ruler also includes a sensor for controlling the electro-magnet switching which is set on front and back sides of the support seat along tangent line of the ruler body. The ball bar ruler needs the ruler body acting with a workpiece in use, a reading head synchronization acts with tool bit along circumferential direction. The workpiece rotates oppositely to the tool bit, the reading head also slips on the ruler body for measuring arc length of the workpiece external circumstance rotary.

Description

A kind of ball bar ruler
Technical field
The present invention relates to a kind of survey instrument, particularly a kind of ball bar ruler.
Background technology
Ball bar ruler (not only be feel of the ball chi but also the ball of title synchronizer is arranged) is a latest generation length measuring sensor in the world at present, and it has anti-interference, anti-vibration, antipollution and advantage such as reliability and durability, therefore is applied in the mechanical processing industry gradually.Existing ball bar ruler is rectilinear structure, and promptly it comprises a straight blade, and blade is made up of a metal tube and the steel ball with high precision that closely is arranged in the metal tube; Slide on the blade and be equipped with a read head, this ball bar ruler can only be used for measuring accurately straight-line displacement.Obviously, existing ball bar ruler is not suitable for the axial measurement in the revolving parts process.But,, in the particularly large-scale power station and the construction of nuclear power station, be badly in need of a kind of accurately measurer of measurement that when machining large gear (diameter is more than 5 meters), can carry out circumferentially along with China's emphasis mega project is built.
At present, the workpiece circumferential size generally obtains by the anglec of rotation of workpiece and the mode of workpiece radius product in machining, the general clinometer rule that adopts carries out measurement of angle in the measurement of angle, owing in the measurement of radius and angle, have error, then cumulative errors can occur in its product, and this cumulative errors can be exaggerated with the increasing of workpiece size.So just seriously influence the machining precision of large-scale workpiece.
Summary of the invention
The purpose of this invention is to provide a kind of accurately ball bar ruler of measurement that when the machining large revolving parts, can carry out circumferentially.
For achieving the above object, the present invention adopts following technical scheme: a kind of ball bar ruler, comprise blade and the read head that is arranged on the blade, and described blade is an annular, is circumferentially with at least three supporting seats along blade; Described supporting seat comprises base, be rotatably equipped with sway brace by rotating shaft on the base, the parallel axes of described rotating shaft is intersected in the residing plane of blade and with the axis of blade, sway brace is provided with the supporter of band locating slot away from an end of base, described blade cooperates with the locating slot location of supporter, sway brace also is provided with the electromagnet that is used for the sticking blade away from an end of base, is provided with torsion spring between described sway brace and the base; This ball bar ruler also comprises the sensor that is used to control magnet switching that is arranged at supporting seat both sides before and after the blade tangential direction.
Be provided with between described base and the sway brace and bump the pearl structure.
Be provided with two torsion springs between described sway brace and the base, two torsion springs lay respectively at the both sides of sway brace perpendicular to its rotating shaft, and the torque direction of two torsion springs is opposite.
Described bump the pearl structure comprise be arranged on the sway brace bump pearl and be arranged on the base with bump pearl corresponding locate cooperation bump the pearl limited impression.
Described electromagnet is the U-shaped structure, and described supporter is between two parallel side walls of electromagnet U-shaped structure.
The openend of described U-shaped electromagnet is lower than the outermost border of blade.
Its blade of the ball bar ruler of such scheme adopts circular ring structure, and read head can carry out the sliding motion of complete cycle along blade.Blade and workpiece synchronization action during use, read head made progress and the cutter head synchronization action in week.Like this, when workpiece rotated with respect to cutter head, read head also carried out synchronization-sliding on blade, and then measured the angle of Workpiece Rotating or the arc length of periphery rotation.The measuring amount that this kind mode is is final required measured value, do not need to carry out computing, the problem that occurs cumulative errors when having avoided calculating between a plurality of measured values, and the error of this kind ball bar ruler self divides equally on its circumferential lengths, thereby its precision can improve along with the increasing of blade diameter.The application of this ball bar ruler has positive meaning for the processing of the gear that uses in the manufacturing of heavy parts, particularly large-scale power station, and work in-process adopts this ball bar ruler can carry out circumferential precision measurement, and then improves the machining precision of part.
Be provided with one between the base of its supporting seat of ball bar ruler of the present invention and the sway brace and bump pearl, bump pearl and be used for guaranteeing that base and sway brace do the time spent in no external force and do not produce relative motion.In addition, be equipped with sensor at supporting seat along the both sides, front and back of read head direction of motion, when the sensor of rear side detects the read head arrival, it cuts off the power supply electromagnet, and read head continued motion and also pressed down sway brace this moment, after the sensor of front side detects read head and crossed supporting seat, it switches on electromagnet, simultaneously, sway brace can reset under the effect of torsion spring, does like this to have guaranteed the cephalomotor continuity of reading.
Description of drawings
Fig. 1 is a perspective view of the present invention;
Fig. 2 is a front view of the present invention;
Fig. 3 is the structural representation of supporting seat;
Fig. 4 is the spatial structure partial sectional view of supporting seat.
Embodiment
Shown in Fig. 1,2,3,4, ball bar ruler of the present invention comprises the blade 1 of an annular, and correspondence is equipped with a read head 2 on the blade 1, evenly is provided with four supporting seats 5 along blade 1 circumferential correspondence.Described supporting seat 5 comprises base 6, be hinged with a sway brace 7 by pin on the base 6, sway brace 7 is equipped with a supporter 8 that has locating slot away from an end of base 6 by pin, and the plane parallel at the axis of pin and blade 1 place is also intersected with the center line of blade 1.Supporter 8 is sheaves, and wherein, blade 1 is positioned at the locating slot of supporter 8, and realizes that with locating slot positioning supports cooperates.In addition, sway brace 7 also is provided with the electromagnet 9 that is used for sticking blade 1 away from an end of base 6, this electromagnet 9 is the U-shaped structure, and the openend of the electromagnet 9 of U-shaped is lower than the outermost border of blade 1, and supporter 8 is between two of electromagnet 9U shape structure mutually parallel sidewalls.Be provided with two torsion springs 10 between sway brace 7 and the base 6; Two torsion springs 10 are located in the rear and front end of pin respectively, and the torque direction of two torsion springs 10 is opposite.Simultaneously, sway brace 7 is provided with one and bumps pearl 11 (certainly, bump pearl and also can be arranged on the base), on the base 6 corresponding to bump pearl 11 positions be provided with one be used for bump pearl 11 locate cooperate bump pearl 11 limited impressions 12.This ball bar ruler also comprises the sensor 3 that is used to control electromagnet 9 break-makes that is arranged at each supporting seat both sides before and after the blade tangential direction, and sensor 3 is fixed on the sensor mount pad 4.

Claims (9)

1. a ball bar ruler comprises blade and the read head that is arranged on the blade, and it is characterized in that: described blade is an annular, is circumferentially with at least three supporting seats along blade; Described supporting seat comprises base, be rotatably equipped with sway brace by rotating shaft on the base, the parallel axes of described rotating shaft is intersected in the residing plane of blade and with the axis of blade, sway brace is provided with the supporter of band locating slot away from an end of base, described blade cooperates with the locating slot location of supporter, sway brace also is provided with the electromagnet that is used for the sticking blade away from an end of base, is provided with torsion spring between described sway brace and the base; This ball bar ruler also comprises the sensor that is used to control magnet switching that is arranged at supporting seat both sides before and after the blade tangential direction.
2. ball bar ruler according to claim 1 is characterized in that: be provided with between described base and the sway brace and bump the pearl structure.
3. ball bar ruler according to claim 2 is characterized in that: be provided with two torsion springs between described sway brace and the base, two torsion springs lay respectively at the both sides of sway brace perpendicular to its rotating shaft, and the torque direction of two torsion springs is opposite.
4. ball bar ruler according to claim 3 is characterized in that: described bump the pearl structure comprise be arranged on the sway brace bump pearl and be arranged on the base with bump pearl corresponding locate cooperation bump the pearl limited impression.
5. ball bar ruler according to claim 3 is characterized in that: described bump the pearl structure comprise be arranged on the base bump pearl and be arranged on the sway brace with bump pearl corresponding locate cooperation bump the pearl limited impression.
6. ball bar ruler according to claim 4 is characterized in that: described electromagnet is the U-shaped structure, and described supporter is between two parallel side walls of electromagnet U-shaped structure.
7. ball bar ruler according to claim 6 is characterized in that: the openend of described U-shaped electromagnet is lower than the outermost border of blade.
8. ball bar ruler according to claim 5 is characterized in that: described electromagnet is the U-shaped structure, and described supporter is between two parallel side walls of electromagnet U-shaped structure.
9. ball bar ruler according to claim 8 is characterized in that: the openend of described U-shaped electromagnet is lower than the outermost border of blade.
CN200910064728XA 2009-04-27 2009-04-27 Ball bar ruler Expired - Fee Related CN101551243B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910064728XA CN101551243B (en) 2009-04-27 2009-04-27 Ball bar ruler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910064728XA CN101551243B (en) 2009-04-27 2009-04-27 Ball bar ruler

Publications (2)

Publication Number Publication Date
CN101551243A CN101551243A (en) 2009-10-07
CN101551243B true CN101551243B (en) 2010-12-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN200910064728XA Expired - Fee Related CN101551243B (en) 2009-04-27 2009-04-27 Ball bar ruler

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CN (1) CN101551243B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102022968B (en) * 2010-12-24 2012-08-15 长江水利委员会长江勘测规划设计研究院 Gate opening detection device
CN102506768B (en) * 2011-10-25 2013-10-09 北京航天计量测试技术研究所 Dynamic characteristic calibration method and device for laser small angle measurement device
WO2018148917A1 (en) * 2017-02-17 2018-08-23 苏州科爱佳自动化科技有限公司 Aerospace-grade ball grid detection system
CN110520686B (en) * 2017-03-14 2021-01-15 苏州科爱佳自动化科技有限公司 Aerospace-grade ball grid precision machining system
CN108075452B (en) * 2017-12-26 2020-06-09 苏州科爱佳自动化科技有限公司 Self-protection system for power transmission line
CN108039701B (en) * 2017-12-26 2020-06-12 苏州科爱佳自动化科技有限公司 Circuit fault protection system
CN107968386B (en) * 2017-12-26 2019-12-31 苏州科爱佳自动化科技有限公司 Circuit fault source removing method
CN108169624B (en) * 2017-12-26 2020-02-14 北京德昌祥科技有限公司 Circuit fault source positioning method
CN108152649B (en) * 2017-12-26 2020-02-14 苏州科爱佳自动化科技有限公司 Intelligent scanning protection system for line faults
CN108155631B (en) * 2017-12-26 2020-06-12 苏州科爱佳自动化科技有限公司 Circuit ground fault removing system
CN108152678B (en) * 2017-12-26 2020-02-14 苏州科爱佳自动化科技有限公司 Circuit fault automatic detection system
CN109084815B (en) * 2018-08-01 2021-07-09 广东工业大学 Absolute encoder with contactless code disc and adjustable precision
CN111207717A (en) * 2020-03-19 2020-05-29 国网河南省电力公司电力科学研究院 Apparatus for measuring three-dimensional inclination angle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1464282A (en) * 2002-06-25 2003-12-31 中国科学院沈阳自动化研究所 Curvature radius measuring method and apparatus therefor
CN201059955Y (en) * 2007-07-18 2008-05-14 陈耀忠 Spiral electricity grid ruler
US20080178485A1 (en) * 2007-01-26 2008-07-31 Ming-Chih Huang Positioning Structure of a Magnetic Induction Ruler

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1464282A (en) * 2002-06-25 2003-12-31 中国科学院沈阳自动化研究所 Curvature radius measuring method and apparatus therefor
US20080178485A1 (en) * 2007-01-26 2008-07-31 Ming-Chih Huang Positioning Structure of a Magnetic Induction Ruler
CN201059955Y (en) * 2007-07-18 2008-05-14 陈耀忠 Spiral electricity grid ruler

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
张宝珠,张峰,刘仙航,尹建,杨爱敏.一种新型的动态位移传感器-球栅尺.测控技术.2000,19(1),22-23. *

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Granted publication date: 20101229

Termination date: 20190427