CN109899472A - A kind of high-precision measuring staff transmission mechanism for displacement measuring equipment - Google Patents
A kind of high-precision measuring staff transmission mechanism for displacement measuring equipment Download PDFInfo
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- CN109899472A CN109899472A CN201910054835.8A CN201910054835A CN109899472A CN 109899472 A CN109899472 A CN 109899472A CN 201910054835 A CN201910054835 A CN 201910054835A CN 109899472 A CN109899472 A CN 109899472A
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- sleeve
- measuring staff
- guide rod
- link block
- sealed bead
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Abstract
The invention discloses a kind of high-precision measuring staff transmission mechanisms for displacement measuring equipment, including measuring staff, first guide rod, link block, first sealed bead bearing, second sealed bead bearing, first sleeve, upper guide bush and lower guide sleeve, one end of the first sleeve is through setting on lower guide sleeve, first sealed bead bearing is interference fitted in first sleeve, one end of the measuring staff passes through the first sealed bead bearing and is fastenedly connected with link block, the other end of the measuring staff is gauge head, second sealed bead bearing is arranged in link block, one end of first guide rod is arranged on lower guide sleeve, the other end of first guide rod passes through the second sealed bead bearing and is arranged on upper guide bush, sliding bearing is replaced using sealed bead bearing in the present invention, solve the clearance issues of sliding bearing, radial freedom degree of measuring staff when by lateral force can effectively be limited, to Reduce measurement error.
Description
Technical field
The present invention relates to a kind of measuring device more particularly to a kind of high-precision measuring staff drivers for displacement measuring equipment
Structure.
Background technique
Displacement measuring equipment, such as amesdial, especially digital display dial gauge, it has high measurement accuracy and outstanding
Performance has obtained extensive utilization when measuring high-accuracy object.Digital display dial gauge is by measuring staff straight-line displacement, in display
The upper length measurement device for reading data.Digital display dial gauge generally includes watchcase, one end is mounted on measuring staff, Yi Jian in watchcase
Sensor in watchcase is wherein also equipped with display on watchcase and connect with sensor.The measuring staff linear movement passes through
Sensor senses, display show the shift value of measuring staff.In existing digital display dial gauge, such as Fig. 1, lower guide sleeve 9 is located at watchcase
Bottom end, upper guide bush 10 are located at the top of watchcase, and measuring staff 1 passes through lower guide sleeve and upper guide bush, is fixedly installed link block in the middle part of measuring staff 1
8(measuring block), in order to solve the problems, such as the lever swing occurred when single-bearing support, pass through cunning between measuring staff 1 and up and down guide sleeve
Dynamic bearing connection, in fact, since there are certain clearance issues between measuring staff 1 and sliding bearing, along with measuring staff 1 leads directly to table
Shell, in order to reach the range of 50mm, the length of measuring staff needs to accomplish 200mm or so under this structure, and measuring staff length is longer, and bar is long
To guarantee that concentricity is just more difficult to when spending longer processing, error is relatively large, and when measuring staff 1 is by lateral force, the radial direction of measuring staff 1 is certainly
Can be bigger than normal by degree, gauge head is easy to happen arcuate displacement, influences the precision of measurement.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of high-precision surveys for displacement measuring equipment
Bar transmission mechanism.
The purpose of the present invention is achieved through the following technical solutions:
A kind of high-precision measuring staff transmission mechanism for displacement measuring equipment, including it is measuring staff, the first guide rod, link block, first close
It is led under through setting one end of pearl bearing, the second sealed bead bearing, first sleeve, upper guide bush and lower guide sleeve, the first sleeve
It puts on, first sealed bead bearing is interference fitted in first sleeve, and one end of the measuring staff passes through the first sealed bead bearing and company
It connects block to be fastenedly connected, the other end of the measuring staff is gauge head, and second sealed bead bearing is arranged in link block, and described first leads
One end of bar is arranged on lower guide sleeve, and the other end of first guide rod passes through the second sealed bead bearing and is arranged on upper guide bush.
Preferably, the end face of one end of the first sleeve through lower guide sleeve center and with the end face of lower guide sleeve it is total
Face.
It preferably, further include second sleeve, the second sleeve is arranged between the second sealed bead bearing and link block.
Preferably, further include the second guide rod, be additionally provided with the through-hole with the cooperation of the second guide rod on the link block, described the
One end of two guide rods is arranged on lower guide sleeve, and the other end passes through the through-hole and is arranged on upper guide bush.
Preferably, the through-hole is kidney slot, axis joint face of the kidney slot along the first guide rod and the second guide rod
Setting.
It preferably, further include 3rd sleeve, the link block, the first guide rod, the second guide rod, second sleeve are located at third set
Cylinder inside, the upper guide bush and lower guide sleeve are separately positioned on the both ends of 3rd sleeve.
Preferably, the first sleeve, second sleeve and 3rd sleeve are rigid protective sleeve.
The beneficial effects of the present invention are:
1) sliding bearing is replaced using sealed bead bearing in the present invention, solves the clearance issues of sliding bearing, can effectively limits
Radial freedom degree of the measuring staff processed when by lateral force, to reduce measurement error, while theoretical service life is tradition side
10 times or more of case.
2) it is fastenedly connected in the present invention by measuring staff and link block, link block is connect with the first guide rod, and link block passes through two
The limit of root axis, and it is equally also provided with sealed bead bearing between the first guide rod and link block, it is equivalent to, by two close pearls before and after measuring staff
Bearing limit solves the problems, such as the lever swing that measuring staff generates, further improves measurement accuracy.
3) the first guide rod is added, the first guide rod uses 110-120mm's long using the structure with the non-coaxial setting of measuring staff
Measuring staff can reach 50mm range, and traditional transmission mode will reach 50mm range measuring staff and need to accomplish 200mm long, and the application uses
The quarter butt of two 110-120mm replaces the stock of a piece 200mm of tradition, shortens the processing length of measuring staff, and process water on an equal basis
In flat situation, the concentricity of quarter butt is better than stock, further reduced because of part mismachining tolerance bring measurement error itself.
4) kidney slot and the second guide rod is arranged in the present invention on link block to cooperate, the second guide rod play solution measuring staff,
The problem of torsional deformation that link block and the first guide rod are likely to occur in practical work process, the setting direction of kidney slot can
It is enough to guarantee to play the role of limiting the first guide rod and the deformation of the second guide rod twist relative, also facilitate the dress of the second guide rod and link block
With (if standard circular hole, though can guarantee the effect of limitation distortion, the present invention program was definition to matching relationship, because of part
Mismachining tolerance, will lead to normally to assemble).
5) 3rd sleeve is set in the present invention, absorbs external stress, improves the service life of mechanism, keep mechanism long-term
Keep high-precision.
Detailed description of the invention
Fig. 1 is a kind of measuring staff schematic diagram in the prior art；
Fig. 2 is structural schematic diagram of the invention；
Fig. 3 is the schematic diagram that upper guide bush is hidden in the present invention；
In figure, 1- measuring staff, the first guide rod of 2-, 3- link block, the first sealed bead bearing of 4-, the second sealed bead bearing of 5-, 6- first sleeve,
7- upper guide bush, guide sleeve under 8-, 9- second sleeve, the second guide rod of 10-, 11- through-hole, 12- 3rd sleeve.
Specific embodiment
Below in conjunction with embodiment, technical solution of the present invention is clearly and completely described, it is clear that described
Embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field
Technical staff's every other embodiment obtained under the premise of not making the creative labor belongs to what the present invention protected
Range.
Refering to Fig. 2-3, the present invention provides a kind of technical solution:
A kind of high-precision measuring staff transmission mechanism for displacement measuring equipment, including measuring staff 1, the first guide rod 2, link block 3, first
Sealed bead bearing 4, the second sealed bead bearing 5, first sleeve 6, upper guide bush 7 and lower guide sleeve 8, one end of the first sleeve 6, which is run through, to be set
It sets on lower guide sleeve 8, first sealed bead bearing 4 is interference fitted in first sleeve 6, and one end of the measuring staff 1 passes through first
Sealed bead bearing 4 is fastenedly connected with link block 3, and the other end of the measuring staff 1 is gauge head, and the setting of the second sealed bead bearing 5 is even
It connects in block 3, one end of first guide rod 2 is arranged on lower guide sleeve 8, and the other end of first guide rod 2 passes through the second close pearl
Bearing 5 is arranged on upper guide bush 7.
Measuring staff 1 and the non-coaxial setting of the first guide rod 2, measuring staff 1 and the first guide rod 2 are connect with link block 3 simultaneously, and in measuring staff
The advantages of 1 and first is provided with sealed bead bearing on guide rod 2, this structure is: first, the length of original measuring staff 1 is shortened,
It improves under same level of processing, the concentricity for the measuring staff 1 processed, and then improves the precision of measurement, for example, being in the past
The range accuracy for guaranteeing 50mm, need to be worked into 200mm for measuring staff 1, and in mechanism, it is similarly the range accuracy for guaranteeing 50mm,
Only measuring staff 1 need to be worked into 120mm or so, in contrast, precision of the shorter measuring staff 1 in measurement is higher；Second, it solves
The lever swing problem that measuring staff 1 generates, link block 3 improve measurement accuracy by two axis limits；Third uses
Sealed bead bearing replaces sliding bearing, solves the clearance issues of sliding bearing, can effectively limit measuring staff 1 by lateral force
When radial freedom degree, to reduce measurement error, while theoretical service life is 10 times of traditional scheme or more.
Further, the end face (end) of one end of the first sleeve 6 through lower guide sleeve 8 center and with lower guide sleeve
8 end face is coplanar, that is, ensure that measuring staff 1 is arranged on the center of entire mechanism, optimize it more in structure design.
It further, further include second sleeve 9 in the present invention, the setting of second sleeve 9 is in the second sealed bead bearing 5 and even
It connects between block 3, to reduce the difficulty of processing of link block 3, while being also convenient for the replacement of part, therefore in link block 3 and the second close pearl
Second sleeve 9 is added between bearing 5, second sleeve 9 and the second sealed bead bearing 5 are interference fitted.
Further, further include the second guide rod 10 in the present invention, be additionally provided on the link block 3 and match with the second guide rod 10
One end of the through-hole 11 of conjunction, second guide rod 10 is arranged on lower guide sleeve 8, and the other end passes through the through-hole 11 setting and leads upper
On set 7.
Further, the through-hole 11 is kidney slot, axis of the kidney slot along the first guide rod 2 and the second guide rod 10
Joint face setting.
Kidney slot is set in the present invention on link block 3 and the second guide rod 10 cooperates, the second guide rod 10 plays solution and surveys
The problem of torsional deformation that bar 1, link block 3 and the first guide rod 2 are likely to occur in practical work process, the setting side of kidney slot
To can either guarantee to play the role of to limit the first guide rod 2 and the deformation of 10 twist relative of the second guide rod, also facilitate the second guide rod 10
With the assembly of link block 3.
It further, further include 3rd sleeve 12 in the present invention, the link block 3, the first guide rod 2, the second guide rod 10, the
Two sleeves 9 are located inside 3rd sleeve 12, and the upper guide bush 7 and lower guide sleeve 8 are separately positioned on the both ends of 3rd sleeve 12, third
Protective device of the sleeve 12 as core component in entire mechanism can absorb external stress, improves mechanism service life, makes mechanism
It is long-term to keep high-precision.
It further, is the durability for improving entire mechanism, the first sleeve 6, second sleeve 9 and 3rd sleeve 12 are equal
For rigid protective sleeve.
The above is only a preferred embodiment of the present invention, it should be understood that the present invention is not limited to described herein
Form should not be regarded as an exclusion of other examples, and can be used for other combinations, modifications, and environments, and can be at this
In the text contemplated scope, modifications can be made through the above teachings or related fields of technology or knowledge.And those skilled in the art institute into
Capable modifications and changes do not depart from the spirit and scope of the present invention, then all should be in the protection scope of appended claims of the present invention
It is interior.
Claims (7)
1. a kind of high-precision measuring staff transmission mechanism for displacement measuring equipment, it is characterised in that: led including measuring staff (1), first
Bar (2), link block (3), the first sealed bead bearing (4), the second sealed bead bearing (5), first sleeve (6), upper guide bush (7) and lower guide sleeve
(8), through being arranged on lower guide sleeve (8), first sealed bead bearing (4) is interference fitted in for one end of the first sleeve (6)
In first sleeve (6), one end of the measuring staff (1) passes through the first sealed bead bearing (4) and is fastenedly connected with link block (3), the survey
The other end of bar (1) is gauge head, and the second sealed bead bearing (5) setting is in link block (3), the one of first guide rod (2)
End is arranged on lower guide sleeve (8), and the other end of first guide rod (2) passes through the second sealed bead bearing (5) and is arranged in upper guide bush (7)
On.
2. a kind of high-precision measuring staff transmission mechanism for displacement measuring equipment according to claim 1, it is characterised in that:
The end face of one end of the first sleeve (6) is through the center of lower guide sleeve (8) and coplanar with the end face of lower guide sleeve (8).
3. a kind of high-precision measuring staff transmission mechanism for displacement measuring equipment according to claim 1, it is characterised in that:
It further include second sleeve (9), the second sleeve (9) is arranged between the second sealed bead bearing (5) and link block (3).
4. a kind of high-precision measuring staff transmission mechanism for displacement measuring equipment according to any one of claim 1-3,
It is characterized by also including the second guide rod (10), the through-hole with the second guide rod (10) cooperation is additionally provided on the link block (3)
(11), one end of second guide rod (10) is arranged on lower guide sleeve (8), and the other end passes through the through-hole (11) setting and leads upper
It covers on (7).
5. a kind of high-precision measuring staff transmission mechanism for displacement measuring equipment according to claim 4, it is characterised in that:
The through-hole (11) is kidney slot, and the kidney slot is arranged along the axis joint face of the first guide rod (2) and the second guide rod (10).
6. a kind of high-precision measuring staff transmission mechanism for displacement measuring equipment according to claim 4, it is characterised in that:
It further include 3rd sleeve (12), the link block (3), the first guide rod (2), the second guide rod (10), second sleeve (9) are located at third
Sleeve (12) inside, the upper guide bush (7) and lower guide sleeve (8) are separately positioned on the both ends of 3rd sleeve (12).
7. a kind of high-precision measuring staff transmission mechanism for displacement measuring equipment according to claim 6, it is characterised in that:
The first sleeve (6), second sleeve (9) and 3rd sleeve (12) are rigid protective sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910054835.8A CN109899472A (en) | 2019-01-21 | 2019-01-21 | A kind of high-precision measuring staff transmission mechanism for displacement measuring equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910054835.8A CN109899472A (en) | 2019-01-21 | 2019-01-21 | A kind of high-precision measuring staff transmission mechanism for displacement measuring equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109899472A true CN109899472A (en) | 2019-06-18 |
Family
ID=66943899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910054835.8A Pending CN109899472A (en) | 2019-01-21 | 2019-01-21 | A kind of high-precision measuring staff transmission mechanism for displacement measuring equipment |
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| Country | Link |
|---|---|
| CN (1) | CN109899472A (en) |
Citations (9)
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|---|---|---|---|---|
| US4327494A (en) * | 1979-10-22 | 1982-05-04 | Mitutoyo Mfg. Co., Ltd. | Linear gauge |
| CN2438098Y (en) * | 1999-10-19 | 2001-07-04 | 北京峰光科技开发公司 | High-precision electronic digital scale device |
| CN103115538A (en) * | 2013-01-17 | 2013-05-22 | 杭州达禹精密仪器有限公司 | Dial indicator mounting frame and dial indicator |
| CN205262318U (en) * | 2015-12-31 | 2016-05-25 | 苏州肯美威机械制造有限公司 | Digital display dial gauge |
| CN206160857U (en) * | 2016-09-30 | 2017-05-10 | 东莞市健旺五金制品科技有限公司 | A kind of bearing dial indicator |
| CN107388998A (en) * | 2016-04-27 | 2017-11-24 | 株式会社三丰 | Linear gauge |
| CN206989844U (en) * | 2016-09-30 | 2018-02-09 | 丁海生 | High-precision slide rail amesdial |
| JP2018077193A (en) * | 2016-11-11 | 2018-05-17 | シチズンファインデバイス株式会社 | Length measuring instrument, and length measuring system |
| CN209483889U (en) * | 2019-01-21 | 2019-10-11 | 成都华量传感器有限公司 | A kind of high-precision measuring staff transmission mechanism for displacement measuring equipment |
-
2019
- 2019-01-21 CN CN201910054835.8A patent/CN109899472A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4327494A (en) * | 1979-10-22 | 1982-05-04 | Mitutoyo Mfg. Co., Ltd. | Linear gauge |
| CN2438098Y (en) * | 1999-10-19 | 2001-07-04 | 北京峰光科技开发公司 | High-precision electronic digital scale device |
| CN103115538A (en) * | 2013-01-17 | 2013-05-22 | 杭州达禹精密仪器有限公司 | Dial indicator mounting frame and dial indicator |
| CN205262318U (en) * | 2015-12-31 | 2016-05-25 | 苏州肯美威机械制造有限公司 | Digital display dial gauge |
| CN107388998A (en) * | 2016-04-27 | 2017-11-24 | 株式会社三丰 | Linear gauge |
| CN206160857U (en) * | 2016-09-30 | 2017-05-10 | 东莞市健旺五金制品科技有限公司 | A kind of bearing dial indicator |
| CN206989844U (en) * | 2016-09-30 | 2018-02-09 | 丁海生 | High-precision slide rail amesdial |
| JP2018077193A (en) * | 2016-11-11 | 2018-05-17 | シチズンファインデバイス株式会社 | Length measuring instrument, and length measuring system |
| CN209483889U (en) * | 2019-01-21 | 2019-10-11 | 成都华量传感器有限公司 | A kind of high-precision measuring staff transmission mechanism for displacement measuring equipment |
Non-Patent Citations (1)
| Title |
|---|
| 王中宇: "精密仪器设计原理", 31 August 2013, 北京航空航天大学出版社, pages: 162 * |
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