CN109506834A - A kind of hold-fast body held for center mass measuring device knife knife - Google Patents

A kind of hold-fast body held for center mass measuring device knife knife Download PDF

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Publication number
CN109506834A
CN109506834A CN201811359206.8A CN201811359206A CN109506834A CN 109506834 A CN109506834 A CN 109506834A CN 201811359206 A CN201811359206 A CN 201811359206A CN 109506834 A CN109506834 A CN 109506834A
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CN
China
Prior art keywords
knife
hold
measuring device
fast body
mass measuring
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Granted
Application number
CN201811359206.8A
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Chinese (zh)
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CN109506834B (en
Inventor
孙凤举
王小三
高炳涛
闫磊
白天
黄其刚
董阿彬
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.)
China Academy of Launch Vehicle Technology CALT
Beijing Aerospace Institute for Metrology and Measurement Technology
Original Assignee
China Academy of Launch Vehicle Technology CALT
Beijing Aerospace Institute for Metrology and Measurement Technology
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Application filed by China Academy of Launch Vehicle Technology CALT, Beijing Aerospace Institute for Metrology and Measurement Technology filed Critical China Academy of Launch Vehicle Technology CALT
Priority to CN201811359206.8A priority Critical patent/CN109506834B/en
Publication of CN109506834A publication Critical patent/CN109506834A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M1/00Testing static or dynamic balance of machines or structures
    • G01M1/12Static balancing; Determining position of centre of gravity
    • G01M1/122Determining position of centre of gravity

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

A kind of hold-fast body held for center mass measuring device knife knife, motor drives screw mandrel rotation, screw rod drive push bracket, push bracket band movable slider slides on guide rail, there is rolling inclined-plane on sliding block, holds part tightly and contacted by rolling inclined-plane with rolling bearing, hold part connection rotary shaft and tension spring tightly.Holding part tightly is that a quarter is round, altogether there are four, collectively constitute a circular configuration.When rolling bearing slides on rolling inclined-plane, holds part tightly and holding is held to knife knife.Guide rail is located on hold-fast body platform.

Description

A kind of hold-fast body held for center mass measuring device knife knife
Technical field
The invention belongs to centroid measurement fields, and in particular to a kind of holding machine held for center mass measuring device knife knife Structure.
Background technique
In centroid measurement, the effect that orthogonal knife knife is held is that a supporting-point is provided for test product, and test product can It is freely rotatable movement around the point, and in the resolving of mass center, a very crucial factor is the position of supporting-point Uniqueness, because the origin of the centroid measurement coordinate system of entire measuring device is i.e. with supporting-point definition in centroid measurement.? It, can the influence of product direct error on mass center accuracy of measurement if the position of the point changes in measurement process.Orthogonal knife Sub- knife holds the structure held due to using the double-deck knife and knife, and every layer of knife knife is held not to be constrained along knife line direction, in mass center Product installation or non-measured state before measurement is due to other probabilistic factors, it is easy to occur that knife along knife line direction Shift phenomenon makes supporting-point position change, therefore, it is quite necessary to which the knife knife by two layers is held in each measuring state The location status all maintained like, to ensure the accuracy of measurement of mass center.
Summary of the invention
It is an object of the invention to: a kind of hold-fast body held for center mass measuring device knife knife is provided.
Technical scheme is as follows: a kind of hold-fast body held for center mass measuring device knife knife, and motor drives Screw rod rotation, screw rod drive push bracket, and push bracket band movable slider slides on guide rail, have rolling inclined-plane on sliding block, hold part tightly and pass through It rolls inclined-plane to contact with rolling bearing, holds part connection rotary shaft and tension spring tightly.
Holding part tightly is that a quarter is round, altogether there are four, collectively constitute a circular configuration.
When rolling bearing slides on rolling inclined-plane, holds part tightly and holding is held to knife knife.
Guide rail is located on hold-fast body platform.
There are six holding part is total
There are six holding part is total
It holds part tightly and shares eight
It holds part tightly and shares 12
It holds part tightly and shares 16
It holds part tightly and shares 18
Remarkable result of the invention is: at low cost, effect is obvious.
Detailed description of the invention
Fig. 1 is the hold-fast body schematic diagram of the present invention held for center mass measuring device knife knife
Fig. 2 is the hold-fast body top view of the present invention held for center mass measuring device knife knife
Fig. 3 is the hold-fast body side view of the present invention held for center mass measuring device knife knife
In figure: 1-push bracket, 2-screw rods, 3-motors, 4-rolling inclined-planes, 5-rolling bearings,
6-hold part, 7-sliding blocks, 8-guide rails, 9-hold-fast body platforms, 10-central axises tightly
11-knife knives are held, 12-rotary shafts, 13-tension springs
Specific embodiment
A kind of hold-fast body held for center mass measuring device knife knife.Wherein guide rail 8 be located at hold-fast body platform 9 it On, and motor 3 drives screw rod 2 to rotate, screw rod 2 drives push bracket 1, and push bracket 1 is slided on guide rail 8 with movable slider 7, on sliding block 7 Have and roll inclined-plane 4, hold part 6 tightly and contacted by rolling inclined-plane 4 with rolling bearing 5, holding part 6 tightly is that a quarter is round, shares four It is a, a circular configuration is collectively constituted, and it connects rotary shaft 12 and tension spring 13, when rolling bearing 5 slides on rolling inclined-plane 4 When, four holding parts 6 hold 11 holdings to knife knife.
A kind of hold-fast body held for center mass measuring device knife knife is provided.
In centroid measurement, the effect that orthogonal knife knife is held is that a supporting-point is provided for test product, and test product can It is freely rotatable movement around the point, and in the resolving of mass center, a very crucial factor is the position of supporting-point Uniqueness, because the origin of the centroid measurement coordinate system of entire measuring device is i.e. with supporting-point definition in centroid measurement.? It, can the influence of product direct error on mass center accuracy of measurement if the position of the point changes in measurement process.Orthogonal knife Sub- knife holds the structure held due to using the double-deck knife and knife, and every layer of knife knife is held not to be constrained along knife line direction, in mass center Product installation or non-measured state before measurement is due to other probabilistic factors, it is easy to occur that knife along knife line direction Shift phenomenon makes supporting-point position change, therefore, it is quite necessary to which the knife knife by two layers is held in each measuring state The location status all maintained like, to ensure the accuracy of measurement of mass center.
A kind of hold-fast body held for center mass measuring device knife knife, motor drives screw mandrel rotation, screw rod drive push bracket, Push bracket band movable slider slides on guide rail, there is rolling inclined-plane on sliding block, holds part tightly and is contacted by rolling inclined-plane with rolling bearing, Hold part connection rotary shaft and tension spring tightly.
Holding part tightly is that a quarter is round, altogether there are four, collectively constitute a circular configuration.
When rolling bearing slides on rolling inclined-plane, holds part tightly and holding is held to knife knife.
Guide rail is located on hold-fast body platform.
There are six holding part is total
There are six holding part is total
It holds part tightly and shares eight
It holds part tightly and shares 12
It holds part tightly and shares 16
It holds part tightly and shares 18
Remarkable result of the invention is: at low cost, effect is obvious.
A kind of hold-fast body held for center mass measuring device knife knife, motor drives screw mandrel rotation, screw rod drive push bracket, Push bracket band movable slider slides on guide rail, there is rolling inclined-plane on sliding block, holds part tightly and is contacted by rolling inclined-plane with rolling bearing, Hold part connection rotary shaft and tension spring tightly.
Holding part tightly is that a quarter is round, altogether there are four, collectively constitute a circular configuration.
When rolling bearing slides on rolling inclined-plane, holds part tightly and holding is held to knife knife.
Guide rail is located on hold-fast body platform.
There are six holding part is total
There are six holding part is total
It holds part tightly and shares eight
It holds part tightly and shares 12
It holds part tightly and shares 16
It holds part tightly and shares 18
Remarkable result of the invention is: at low cost, effect is obvious.
A kind of hold-fast body held for center mass measuring device knife knife, motor drives screw mandrel rotation, screw rod drive push bracket, Push bracket band movable slider slides on guide rail, there is rolling inclined-plane on sliding block, holds part tightly and is contacted by rolling inclined-plane with rolling bearing, Hold part connection rotary shaft and tension spring tightly.
Holding part tightly is that a quarter is round, altogether there are four, collectively constitute a circular configuration.
When rolling bearing slides on rolling inclined-plane, holds part tightly and holding is held to knife knife.
Guide rail is located on hold-fast body platform.
There are six holding part is total
There are six holding part is total
It holds part tightly and shares eight
It holds part tightly and shares 12
It holds part tightly and shares 16
It holds part tightly and shares 18
Remarkable result of the invention is: at low cost, effect is obvious.

Claims (10)

1. a kind of hold-fast body held for center mass measuring device knife knife, it is characterised in that: motor (3) drives screw rod (2) to turn Dynamic, screw rod (2) drives push bracket (1), and push bracket (1) band movable slider (7) slides on guide rail (8), has rolling inclined-plane on sliding block (7) (4), part (6) are held tightly to contact by rolling inclined-plane (4) with rolling bearing (5), holds part (6) connection rotary shaft (12) and tension spring tightly (13)。
2. a kind of hold-fast body held for center mass measuring device knife knife according to claim 1, it is characterised in that: embrace Tight part (6) is that a quarter is round, altogether there are four, collectively constitute a circular configuration.
3. a kind of hold-fast body held for center mass measuring device knife knife according to claim 1, it is characterised in that: when For rolling bearing (5) when sliding on rolling inclined-plane (4), holding part tightly, (6 pairs of knife knives hold (11) holding.
4. a kind of hold-fast body held for center mass measuring device knife knife according to claim 1, it is characterised in that: lead Rail (8) is located on hold-fast body platform (9).
5. a kind of hold-fast body held for center mass measuring device knife knife according to claim 1, it is characterised in that: embrace There are six tight part (6) is total.
6. a kind of hold-fast body held for center mass measuring device knife knife according to claim 1, it is characterised in that: embrace There are six tight part (6) is total.
7. a kind of hold-fast body held for center mass measuring device knife knife according to claim 1, it is characterised in that: embrace Tight part (6) shares eight.
8. a kind of hold-fast body held for center mass measuring device knife knife according to claim 1, it is characterised in that: embrace Tight part (6) shares 12.
9. a kind of hold-fast body held for center mass measuring device knife knife according to claim 1, it is characterised in that: embrace Tight part (6) shares 16.
10. a kind of hold-fast body held for center mass measuring device knife knife according to claim 1, it is characterised in that: It holds part (6) tightly and shares 18.
CN201811359206.8A 2018-11-15 2018-11-15 A hold mechanism tightly for barycenter measuring device sword knife holds Active CN109506834B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811359206.8A CN109506834B (en) 2018-11-15 2018-11-15 A hold mechanism tightly for barycenter measuring device sword knife holds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811359206.8A CN109506834B (en) 2018-11-15 2018-11-15 A hold mechanism tightly for barycenter measuring device sword knife holds

Publications (2)

Publication Number Publication Date
CN109506834A true CN109506834A (en) 2019-03-22
CN109506834B CN109506834B (en) 2021-05-18

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CN201811359206.8A Active CN109506834B (en) 2018-11-15 2018-11-15 A hold mechanism tightly for barycenter measuring device sword knife holds

Country Status (1)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008531301A (en) * 2005-02-26 2008-08-14 オット−ヤコブ シュパンテヒニック ゲーエムベーハー Clamping device
CN202336843U (en) * 2011-11-23 2012-07-18 贵州航天精工制造有限公司 Tool for detaching parts from shaft
CN102950492A (en) * 2011-08-26 2013-03-06 吴江市海鑫机械有限公司 Quick clamping clamp
CN203281911U (en) * 2012-12-11 2013-11-13 重庆信奇建材机械制造有限公司 Wedge mechanism of hydraulic automatic centering chuck
CN204818829U (en) * 2015-08-08 2015-12-02 兰溪市瑞鼎数控机械有限公司 Clamp mechanism

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008531301A (en) * 2005-02-26 2008-08-14 オット−ヤコブ シュパンテヒニック ゲーエムベーハー Clamping device
CN102950492A (en) * 2011-08-26 2013-03-06 吴江市海鑫机械有限公司 Quick clamping clamp
CN202336843U (en) * 2011-11-23 2012-07-18 贵州航天精工制造有限公司 Tool for detaching parts from shaft
CN203281911U (en) * 2012-12-11 2013-11-13 重庆信奇建材机械制造有限公司 Wedge mechanism of hydraulic automatic centering chuck
CN204818829U (en) * 2015-08-08 2015-12-02 兰溪市瑞鼎数控机械有限公司 Clamp mechanism

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