CN102102977A - Driving unit of roughmeter - Google Patents
Driving unit of roughmeter Download PDFInfo
- Publication number
- CN102102977A CN102102977A CN 201110001306 CN201110001306A CN102102977A CN 102102977 A CN102102977 A CN 102102977A CN 201110001306 CN201110001306 CN 201110001306 CN 201110001306 A CN201110001306 A CN 201110001306A CN 102102977 A CN102102977 A CN 102102977A
- Authority
- CN
- China
- Prior art keywords
- guide rail
- slide block
- roughmeter
- driver element
- sensor
- 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.)
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Abstract
The embodiment of the invention provides a driving unit of a roughmeter. The driving unit of the roughmeter comprises a guide rail and a trapezoidal sliding block, wherein the internal profile of the vertical section of the guide rail is trapezoidal, and the intersecting line of extended surfaces of two inclined surfaces of the guide rail is parallel to the movement direction of a roughmeter sensor; the trapezoidal sliding block is inversely arranged between the two opposite inclined surfaces of the guide rail, and tightly contacts and slides on the two opposite inclined surfaces of the guide rail; acute angles formed between the two opposite inclined surfaces of the guide rail and the bottom surface and obtuse angles of the sliding block are complementary; the sensor is positioned on the lower part of the sliding block; and the gravity center of the sliding block is a drive stressed point of the sliding block. By the embodiment of the invention, on the premise of ensuring that a contact pin of the sensor does rectilinear motion, the utilization rate of the guide rail can be improved, and the contact pin of the sensor can be vertical to the measured surface to the greatest extent, so that the measurement error is reduced.
Description
Technical field
The present invention relates to the roughness concentration field, relate in particular to a kind of driver element of roughmeter.
Background technology
Surfaceness (surface roughness) is the surface microscopic error in geometrical form, the usability (as friction and wear, fiting property, fatigue strength, contact stiffness, corrosion resistance, combination seal etc.) and the dimensional measurement precision of part for part all have considerable influence, therefore surfaceness is as the important techniques index, be requisite link in the geometric accuracy design, in the process of part, extensively required to be controlled.
The measurement of surface quality of workpieces is finished by roughness measuring instrument usually with evaluation.Wherein the contact pin type roughness concentration is the most frequently used, the most reliable at present surfagauge, and is the foundation that various countries country and international standard are formulated always.This quasi-instrument is based on the principle of inductive displacement sensing, move at measured surface with certain speed by contact pilotage, because the nao-and micro relief on surface causes moving up and down of contact pilotage, thereby follow the tracks of the geometric configuration of describing out tested profile, one section continuous profile information is after filtering, A/D (analog/digital) conversion, amplifying, obtain x, the two Dimension Numerical of y both direction obtains the roughness parameter value as calculated.Guaranteeing in measuring process that sensor moves along a straight line is even more important.
In the prior art, be used for guaranteeing that the guide rail that sensor moves along a straight line is generally cylindrical slideway, and drive sensor movement by guide rail movement when measuring and reach the measurement purpose.One of its shortcoming is that utilizing of guide rail is low, and sensor contact pilotage single measurement displacement is little, as shown in Figure 1, structure of driving unit synoptic diagram for the prior art roughmeter, wherein two fulcrums 1 and two fulcrums 2 are used for fixing guide rail, and the B point connects sensor, and A is another end points of guide rail.Therefore will guarantee that guide rail is parallel with surface measurements, must guarantee that guide rail terminal A displacement is no more than fulcrum 1, this causes sensor contact pilotage single measurement displacement only to be the distance of A point to fulcrum 1, has limited the utilization factor of guide rail; Its two: because guide rail is cylindrical, point-blank move though can guarantee the sensor contact pilotage, guide rail may be the turning axle rotation with the axle center of self, makes that the sensor contact pilotage can not be perpendicular to measured surface, thereby causes measuring error.
Summary of the invention
The embodiment of the invention provides a kind of driver element of roughmeter, to improve the utilization rate of guide rail, can make the sensor contact pilotage as far as possible perpendicular to measured surface again.
On the one hand, the embodiment of the invention provides a kind of driver element of roughmeter, the driver element of described roughmeter comprises guide rail and trapezoidal slide block, the vertical section in-profile of its middle guide in echelon and the intersection of two inclined-plane elongated surfaces of guide rail be parallel to roughmeter sensor moving direction, wherein trapezoidal slide block is inverted between two relative inclined-planes of guide rail, contact slip closely with two relative inclined-planes of guide rail, and the angle of the acute angle that two relative inclined-planes of guide rail become with the bottom surface and the angle complementation at slide block obtuse angle, wherein, sensor is positioned at the bottom of slide block, and the focus point of slide block drives stress point for this slide block.
The invention described above embodiment technical scheme is being guaranteed under the prerequisite that the sensor contact pilotage moves along a straight line, and both can improve the utilization rate of guide rail, can make the sensor contact pilotage as far as possible perpendicular to measured surface again, thereby reduces measuring error.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structure of driving unit synoptic diagram of prior art roughmeter;
Fig. 2 is the structure of driving unit synoptic diagram of a kind of roughmeter of the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
As shown in Figure 2, be the structure of driving unit synoptic diagram of a kind of roughmeter of the embodiment of the invention, the driver element of described roughmeter comprises guide rail (the guide rail c of V-type
1The guide rail c of part and V-type
2Partly) and trapezoidal slide block a, the vertical section in-profile of its middle guide in echelon and two inclined-plane (guide rail c of guide rail
1Part and guide rail c
2Part) intersection of elongated surfaces is parallel to roughmeter sensor moving direction, and wherein trapezoidal slide block a is inverted in two relative inclined-plane (guide rail c of guide rail
1Part and guide rail c
2Part) between, with two relative inclined-plane (guide rail c of guide rail
1Part and guide rail c
2Part) contact is slided closely, and two relative inclined-plane (guide rail c of guide rail
1Part and guide rail c
2Part) the angle [alpha] complementation at the angle θ of the acute angle that becomes with the bottom surface and slide block a obtuse angle, wherein, sensor f is positioned at the bottom of slide block a, and the focus point of slide block a is that this slide block a drives stress point.
Wherein, slide block a and guide rail (guide rail c
1Part and guide rail c
2Part) surface of contact is smooth flat, can be processed into high precision plane.
The driver element of described roughmeter can also comprise: securing cover plate d
1, a side is by fixed screw b
1Be fixed in guide rail c
1Part top, the unsettled and projection from the top down of opposite side overlaps with a predetermined portions of slide block; Securing cover plate d
2, a side is by fixed screw b
2Be fixed in guide rail c
2Part top, the unsettled and projection from the top down of opposite side overlaps with a predetermined portions of slide block.The driver element of described roughmeter can also comprise: the rear and front end of slide block a both sides altogether everywhere fixed screw and go up the be upturned sheet spring (e of a predetermined angular of fixing direction of extension
1And e
2), sheet spring (e
1And e
2) the free end that is upturned by sliding contact fixing on it respectively against living in described securing cover plate (d
1And d
2), make slide block a contact with two inclined-planes of guide rail with certain pressure.
For example among Fig. 2, securing cover plate d
1, an end is by fixed screw b
1Be fixed in guide rail c
1The top of part, the other end and the sheet spring e that is fixed on the slide block a
1Lean, give downward pressure of slide block a with this; Securing cover plate d
2, an end is by fixed screw b
2Be fixed in guide rail c
2The top of part, the other end and the sheet spring e that is fixed in slide block a
2Lean, give downward pressure of slide block a with this.
Wherein, the length of described slide block a is less than the c of guide rail
1Part or guide rail c
2The length of part, slide block length is compared rail length, accounts for smaller portions.
Need to prove; the embodiment of the invention adopt above-mentioned spring fixedly the mode of slide block two faces helping slide block can closely contact with two faces of guide rail; adopt above-mentioned spring fixedly the mode of slide block be not to be used to limit protection scope of the present invention; the fixed form of embodiment of the invention slide block can have multiple; not as limit; other embodiments also belong to the protection domain of the embodiment of the invention.
The invention described above embodiment technical scheme beneficial effect: two faces of (1) slide block contact closely with two faces of guide rail, can guarantee that the sliding trace of slide block on two faces of guide rail is straight line; (2) motion parts is a slide block in the embodiment of the invention, because slide block length compares rail length and account for smaller portions, that therefore can improve guide rail effectively utilizes length; (3) stress point that among the present invention slide block is driven is arranged on the focus point of slide block, the power on the slide block of being applied to like this is parallel to two planes of guide rail, can avoid when slide block moves, producing moment, reduce the attitude change of slide block, and then reduced measuring error with respect to guide level.The embodiment of the invention is being guaranteed under the prerequisite that the sensor contact pilotage moves along a straight line, and both can improve the utilization rate of guide rail, can make the sensor contact pilotage as far as possible perpendicular to measured surface again, thereby reduces measuring error.
Above-described embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is the specific embodiment of the present invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. the driver element of a roughmeter, it is characterized in that, the driver element of described roughmeter comprises guide rail and trapezoidal slide block (a), the vertical section in-profile of its middle guide in echelon and the intersection of two inclined-plane elongated surfaces of guide rail be parallel to roughmeter sensor moving direction, wherein trapezoidal slide block (a) is inverted between two relative inclined-planes of guide rail, contact slip closely with two relative inclined-planes of guide rail, and angle (α) complementation at the angle (θ) of the acute angle that two relative inclined-planes of guide rail become with the bottom surface and slide block (a) obtuse angle, wherein, sensor (f) is positioned at the bottom of slide block (a), and the focus point of slide block (a) is that this slide block (a) drives stress point.
2. the driver element of roughmeter according to claim 1 is characterized in that, slide block (a) is smooth flat with the surface of contact of guide rail.
3. the driver element of roughmeter according to claim 1 is characterized in that the driver element of described roughmeter also comprises: securing cover plate (d
1), a side is by fixed screw (b
1) be fixed in guide rail (c
1Part) top, the unsettled and projection from the top down of opposite side overlaps with a predetermined portions of slide block; Securing cover plate (d
2), a side is by fixed screw (b
2) be fixed in guide rail (c
2Part) top, the unsettled and projection from the top down of opposite side overlaps with a predetermined portions of slide block.
4. as the driver element of roughmeter as described in the claim 3, it is characterized in that, the driver element of described roughmeter also comprises: the rear and front end of slide block (a) both sides altogether everywhere fixed screw and go up the be upturned sheet spring of a predetermined angular of fixing direction of extension, the free end that is upturned of sheet spring respectively against living described securing cover plate, makes slide block (a) contact with two inclined-planes of guide rail with certain pressure by sliding contact fixing on it.
5. the driver element of roughmeter according to claim 1 is characterized in that the length of described slide block (a) is less than the length of guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100013065A CN102102977B (en) | 2011-01-05 | 2011-01-05 | Driving unit of roughmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100013065A CN102102977B (en) | 2011-01-05 | 2011-01-05 | Driving unit of roughmeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102102977A true CN102102977A (en) | 2011-06-22 |
| CN102102977B CN102102977B (en) | 2012-07-25 |
Family
ID=44155914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100013065A Expired - Fee Related CN102102977B (en) | 2011-01-05 | 2011-01-05 | Driving unit of roughmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102102977B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104029165A (en) * | 2014-06-18 | 2014-09-10 | 安庆联控机电科技发展有限公司 | Movable guide rail device for expanding and removing of piston ring |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2223478Y (en) * | 1994-12-23 | 1996-03-27 | 戚国庆 | Surface roughness tester for rack |
| EP1698854A1 (en) * | 2005-03-04 | 2006-09-06 | Mitutoyo Corporation | Drive unit for a surface roughness detector |
| CN1945205A (en) * | 2006-10-16 | 2007-04-11 | 中国科学院上海光学精密机械研究所 | Real time detecting device and method for optical glass roughness |
| JP2007192333A (en) * | 2006-01-19 | 2007-08-02 | Nsk Ltd | Linearly moving device |
| CN201917316U (en) * | 2011-01-05 | 2011-08-03 | 北京物资学院 | Drive unit of roughmeter |
-
2011
- 2011-01-05 CN CN2011100013065A patent/CN102102977B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2223478Y (en) * | 1994-12-23 | 1996-03-27 | 戚国庆 | Surface roughness tester for rack |
| EP1698854A1 (en) * | 2005-03-04 | 2006-09-06 | Mitutoyo Corporation | Drive unit for a surface roughness detector |
| CN1841016A (en) * | 2005-03-04 | 2006-10-04 | 三丰株式会社 | Drive unit |
| JP2007192333A (en) * | 2006-01-19 | 2007-08-02 | Nsk Ltd | Linearly moving device |
| CN1945205A (en) * | 2006-10-16 | 2007-04-11 | 中国科学院上海光学精密机械研究所 | Real time detecting device and method for optical glass roughness |
| CN201917316U (en) * | 2011-01-05 | 2011-08-03 | 北京物资学院 | Drive unit of roughmeter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104029165A (en) * | 2014-06-18 | 2014-09-10 | 安庆联控机电科技发展有限公司 | Movable guide rail device for expanding and removing of piston ring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102102977B (en) | 2012-07-25 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20220105 |