CN204575035U - A kind of two recessed centre of sphere line and end face squareness measurement mechanisms - Google Patents
A kind of two recessed centre of sphere line and end face squareness measurement mechanisms Download PDFInfo
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- CN204575035U CN204575035U CN201520201562.2U CN201520201562U CN204575035U CN 204575035 U CN204575035 U CN 204575035U CN 201520201562 U CN201520201562 U CN 201520201562U CN 204575035 U CN204575035 U CN 204575035U
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Abstract
A kind of two recessed centre of sphere line and end face squareness measurement mechanisms, comprise base, flat board, slide block, described flat board is fixed on base, slide block can slide along flat board, install dynamic bulb in its one end, position relative with dynamic bulb on flat board is provided with determines bulb, moves bulb and determines to place part to be measured between bulb, when described dynamic bulb slides on flat board with slide block, the dynamic bulb centre of sphere and the axis determined between the bulb centre of sphere constant; Describedly determine straddle mounting parallel reflective mirror outside bulb, a side of parallel reflective mirror and the end face of described part to be measured are fitted, and arrange an autocollimator outside another side; By adopting this measurement mechanism, two recessed centre of sphere line and end face squareness can be detected fast, drastically increase detection efficiency, have good application prospect.
Description
Technical field
The utility model relates to machining and measures industry.Being specifically related to one can be datum axis to having two recessed centre of sphere lines easily and fast, exactly, and has end face and this datum axis to have the requirement of precise perpendicularity degree to be the device that the part of feature carries out squareness measurement.
Background technology
With two recessed balls (also known as ball bowl) centre of sphere line for datum axis, part has other end faces need part for feature vertical with this datum axis, its micron-sized verticality requires it is that lappingout end face realizes by hand.But, the accurate measurement of its verticality is a difficult problem always, reason is the recessed ball centre of sphere is virtual sphere center, cannot directly determine and measure, industry is carried out on three-coordinates measuring machine its accurate measurement is many, utilize its spheric probe on two concave spherical surfaces and end face, carry out multimetering (usually will measure 28 points altogether) respectively, then after the process of computer the Fitting Calculation, draw the verticality numerical value of end face and two recessed ball centre of sphere lines.This method has 3 deficiencies: 1. need rely on high precision three-coordinates measuring machine; 2. check point is many, length consuming time; 3. production efficiency is low, survey because micron-sized verticality lappingout needs limit to grind frontier inspection, until reach accuracy requirement, each detection in this operation all will be delivered on three-coordinates measuring machine and carry out, adds additional a lot of transport and the stand-by period, greatly have impact on production efficiency undoubtedly.
Utility model content
The technical matters that the utility model solves is: provide a kind of two recessed centre of sphere line and end face squareness measurement mechanisms, can realize measuring two recessed centre of sphere lines of two recessed centre of sphere type parts and end face squareness.
Technical solution of the present utility model is:
A kind of two recessed centre of sphere line and end face squareness measurement mechanisms, comprise base, flat board, slide block, described flat board is fixed on base, slide block can slide along flat board, install dynamic bulb in its one end, position relative with dynamic bulb on flat board is provided with determines bulb, moves bulb and determines to place part to be measured between bulb, when described dynamic bulb slides on flat board with slide block, the dynamic bulb centre of sphere and the axis determined between the bulb centre of sphere constant; During use, be first fixed on by standardized element and determine between bulb and dynamic bulb, determine straddle mounting parallel reflective mirror outside bulb, a side of parallel reflective mirror and the end face of described part to be measured are fitted, and arrange an autocollimator outside another side; Adjustment autocollimator is until coincided by the cross curve center of reflection cursor and autocollimator, now the normal line of butt end direction of standardized element is determined (i.e. zero error normal), take off standardized element, tested part is fixed on and determines between bulb and dynamic bulb, read back light target deviation value in autocollimator, this value is the verticality angular error of this tested part end face.
The side of described slide block is installed with two side position blocks, and opposite side is provided with compressing member, and compressing member and side position block move along a straight line for limiting slide block.
Described compressing member comprises the first compression bearing, second and compresses bearing, clutch shaft bearing arm, the second roll bearing arm, the first holddown spring and the second holddown spring; Described first compresses one end that bearing is installed on clutch shaft bearing arm, and the other end of clutch shaft bearing arm is fixed on flat board by the first rotating shaft, and the first holddown spring compresses bearing place to clutch shaft bearing arm to slide block pressuring direction at clutch shaft bearing arm rest nearly first; Second compresses one end that bearing is installed on the second roll bearing arm, and the other end of the second roll bearing arm is fixed on flat board by the second rotating shaft, and the second holddown spring compresses bearing place to the second roll bearing arm to slide block pressuring direction at the second roll bearing arm near second;
The both sides of described slide block are installed with magnet holder, each magnet holder is installed with magnet, part to be measured is placed in be determined after between bulb and dynamic bulb, its end face is between magnet with parallel reflective mirror, parallel reflective mirror is attracted by its magnetic force by magnet, and the tested end face of its side and part to be measured is fitted.
Describedly determine bulb and be fixed on flat board by cylindrical handle, parallel reflective mirror is " U " shape structure, its U-lag part is across being placed on described cylindrical handle, parallel reflective mirror realizes by magnetic levitation mode with support in the vertical direction, namely parallel reflective mirror and flat board respectively have two magnet, the magnetic suspension force produced by two homopolar-repulsions is supported.
One end of described slide block is provided with flexible restoring organ, flexible restoring organ comprises back-moving spring, spring top, big spring seat and set screw, wherein slide block is withstood in one end of back-moving spring, the other end withstands spring top, spring top is arranged at the inside of big spring seat, and set screw withstands spring top through big spring seat, screws in the degree of depth of big spring seat by changing set screw, the position on adjustable springs top, and then the compression degree regulating back-moving spring.
The utility model advantage is compared with prior art:
(1) tested part clamping is also fixed on space by two benchmark bulbs in the utility model mobile in opposite directions exactly, now that is the line of two centre ofs sphere be fixed, the normal of parallel reflective mirror minute surface represents the normal of tested part end face, and zoomed into can reflecting surface, utilize autocollimator can measure the feature of rad level deviation, measure the drift angle of reflected light, and then the high-acruracy survey achieved tested part end face squareness deviation, break away from the dependence to three coordinatographs, and substantially increase detection efficiency.
(2) the utility model is by arranging baffle plate in slide block side, and opposite side arranges compressing member, can limit slide block and move along a straight line, and ensures registration; In addition, being that parallel reflective mirror provides support buoyancy and laminating pulling force by arranging magnet, can stablizing, fit reliably with part end face to be measured, guarantee to measure accurately.
Accompanying drawing explanation
Fig. 1 is the schematic three dimensional views of the utility model measurement mechanism;
Fig. 2 is the horizontal cross-section of the mistake two reference sphere axis of the utility model measurement mechanism;
Fig. 3 is the step profile figure that parallel reflective mirror crossed by the utility model measurement mechanism.
Embodiment
The utility model greatly improves the detection efficiency of two recessed centre of sphere lines and end face squareness, specific design principle is as follows: adopt the benchmark bulb that two corresponding with detected part recessed ball sphere diameter, one is fixing bulb, be arranged on hold-down support, another bulb is arranged on a slide block one end only movable linearly, form a dynamic bulb, both relatively dynamicly constitute support agency.The part (that is standardized element) of one zero error of perpendicularitys is placed between two benchmark bulbs, mobile dynamic bulb is held fixed, between dynamic bulb, realize its centre of sphere line to be fixed, special by one piece again, its two sides depth of parallelism, the one side of the parallel reflective mirror that roughness is high by magnetic attraction on the tested end face of standardized element, by the opposite side reflecting surface of autocollimator to quasi-parallel reflective mirror, and autocollimator is adjusted to reflection cursor and the cross curve center of self coincide, now normal line of butt end (that is the zero error standard normal) direction of standardized element is determined.Take off parallel reflective mirror, remove standardized element, replace with actual tested part, repeat said process, read autocollimator back light target deviation value, this value is the angular error of this tested end face squareness.This measurement mechanism has good application prospect in engineering survey.
Below in conjunction with accompanying drawing, the utility model is described in detail.
Fig. 1 is the schematic three dimensional views of the utility model measurement mechanism, Fig. 2 is the horizontal cross-section of the mistake two reference sphere axis of the utility model measurement mechanism, as can be seen from Fig. 1 and Fig. 2, measurement mechanism of the present utility model comprises base 1, dull and stereotyped 2, slide block 3, side position block 4, back-moving spring 5, spring top 6, big spring seat 7, set screw 8, first compresses bearing 9, first holddown spring 10, first submissile spring abutment 11, clutch shaft bearing arm 12, first rotating shaft 13, push button 14, second rotating shaft 15, second roll bearing arm 16, second holddown spring 17, second submissile spring abutment 18, second compresses bearing 19, magnet holder 20, magnet 21, parallel reflective mirror 22, determine ball cup 23, determine bulb 24, tested part 25, dynamic bulb 26, upper magnet 27, lower magnet 28, lower magnet seat 29 and autocollimator 30.The base 1 of device is fixed wtih dull and stereotyped 2, the top surface plane degree of dull and stereotyped 2 is high, and constitute two basal plane systems with two side position blocks 4, slide block 3 is placed in this two basal planes system and makes linear slide accurately.The tail end of slide block 3 is promoted by back-moving spring 5, and the other end of back-moving spring 5 is withstood by the spring top 6 of big spring seat 7 inside, and set screw 8 is for the adjustment of spring reset thrust.Corresponding with two side position blocks 4, there are the first compression bearing 9 and the second compression bearing 19 to be pushed down by slide block 3 in slide block 3 another side, these two compression bearings are arranged on clutch shaft bearing arm 12 and the second roll bearing arm 16 respectively, two roll bearing arms all can rotate around respective rotating shaft 13 and 15, the side of dull and stereotyped 2 is fixed with two submissile spring abutments, be respectively the first submissile spring abutment 11 and the second submissile spring abutment 18, the first holddown spring 10 and the second holddown spring 17 is respectively arranged with in it, the other end of the first holddown spring 10 and the second holddown spring 17 is pressed on two roll bearing arms 12 and 16 respectively, consequently the first compression bearing 9 and the second compression bearing 19 have pressure to act on slide block 3 all the time, all the time contact with side position block 4 when ensure that slide block 3 moves linearly, achieve the accurate rectilinear motion of slide block.The other end of slide block 3 is fixed wtih dynamic bulb 26.The other end above dull and stereotyped 2 is fixed wtih determines ball seat 23, it is fixed wtih and determines bulb 24, and fixed and moving two balls are put relatively, and should be adjusted to dynamic bulb 26 when making linear slide, determines the centre of sphere of bulb 24 and dynamic bulb 26 all on the same axis.Promote push button 14 and slide block 3 is shifted to right side, being placed in by tested part 25 as shown in Figure 2 determines between bulb 24 and dynamic bulb 26, slowly unclamp push button 14, slide block 3 is moved to the left under the effect of back-moving spring 5, tested part 25 is clamped in and determines between bulb 24 and dynamic bulb 26, that is the centre of sphere line of tested part 25 is determined.Dull and stereotyped 2 both sides are also respectively fixed with a magnet holder 20, magnet 21 is all fixed with in hole on it, a U-shaped, parallel reflective mirror 22 that the depth of parallelism and roughness are all high across be enclosed within determine bulb 24 cylindrical handle on, and its reflective surface is fitted on the tested end face of tested part, its adhesive force is provided by magnet 21.
Fig. 3 is the step profile figure of measurement mechanism along A-A, illustrate parallel reflective mirror 22, upper magnet 27, lower magnet 28, relation between lower magnet seat 29 and dull and stereotyped 2, because of parallel reflective mirror 22 be across determine bulb 24 after should stably fit on the end face of tested part 25, avoid it again and determine bulb 24 rubbing contact and affect laminating, its location needs accurately, upper magnet 27 is fixed on parallel reflective mirror 22 lower end, there is lower magnet 28 below corresponding with it, lower magnet 28 is fixed in lower magnet seat 29, lower magnet seat 29 is threaded connection and is arranged on dull and stereotyped 2, upper magnet 27 is mounted opposite with two identical polars of lower magnet 28, its opposing magnetic force is the magnetic suspension force that parallel reflective mirror provides vertical direction, regulate the spiral degree of depth of lower magnet seat 29 and the high and low position of adjustable lower magnet 28, and then achieve the adjustment of magnetic suspension force.The opposite side (that is outer left side) of parallel reflective mirror 22 is mounted with autocollimator 30, and autocollimator 30 is with parallel reflective mirror 22, dynamic bulb 26 and determine bulb 24 all on the same axis.
During use, it is fixed to be first fixed on as tested part 25 by above description by standardized element (zero error of perpendicularity), between dynamic bulb, tested part end face is stably fitted under the effect of the upper magnet 27 of parallel reflective mirror 22 below its parallel reflective mirror and lower magnet 28, by the opposite side reflecting surface of autocollimator 30 pairs of quasi-parallel reflective mirrors 22, by reflection cursor and the cross curve center of self, adjustment autocollimator 30 is until coincided that (being reflected cursor is that autocollimator is self-contained, after tracking cross is shot out, return through mirror reflection, this cursor can be observed on autocollimator, if overlap with the cross curve of autocollimator, then prove that autocollimator is vertical with reflective mirror), now normal line of butt end (the i.e. zero error end face normal direction) direction of standardized element is determined, take off parallel reflective mirror 22 and standardized element, replace with actual tested part 25, back light target deviation value in autocollimator is read by same method, this value is the verticality angular error of this tested part end face.
The unspecified part genus of the utility model well known to a person skilled in the art general knowledge.
Claims (6)
1. a recessed centre of sphere line and end face squareness measurement mechanism, it is characterized in that, comprise base (1), dull and stereotyped (2), slide block (3), described flat board (2) is fixed on base (1), slide block (3) can slide along flat board, dynamic bulb (26) is installed in its one end, be provided with in dull and stereotyped (1) upper position relative with dynamic bulb (26) and determine bulb (24), move bulb (26) and determine to place part to be measured (25) between bulb (24), when described dynamic bulb (26) is slided on dull and stereotyped (2) with slide block (3), dynamic bulb (26) centre of sphere and the axis determined between bulb (24) centre of sphere constant, describedly determine bulb (24) outside straddle mounting parallel reflective mirror (22), a side of parallel reflective mirror (22) and the end face of described part to be measured (25) are fitted, and arrange an autocollimator (30) outside another side, during use, first standardized element is fixed on and determines between bulb (24) and dynamic bulb (26), and a side of parallel reflective mirror (22) is fitted in standardized element end face, adjustment autocollimator (30) is until the reflection cursor of autocollimator (30) and the cross curve center of autocollimator (30) coincide, now the normal line of butt end direction of standardized element is determined, take off standardized element, being fixed on by tested part (25) determines between bulb (24) and dynamic bulb (26), read back light target deviation value in autocollimator (30), this value is the verticality angular error of this tested part end face.
2. a kind of two recessed centre of sphere line and end face squareness measurement mechanisms according to claim 1, it is characterized in that, the side of described slide block (3) is installed with two side position blocks (4), opposite side is provided with compressing member, and compressing member and side position block (4) move along a straight line for limiting slide block (3).
3. a kind of two recessed centre of sphere line and end face squareness measurement mechanisms according to claim 2, it is characterized in that, described compressing member comprises the first compression bearing (9), second and compresses bearing (19), clutch shaft bearing arm (12), the second roll bearing arm (16), the first holddown spring (10) and the second holddown spring (17); Described first compresses one end that bearing (9) is installed on clutch shaft bearing arm (12), the other end of clutch shaft bearing arm (12) is fixed on flat board (2) by the first rotating shaft (13), and the first holddown spring (1) compresses bearing (9) place to clutch shaft bearing arm (12) to slide block (3) pressuring direction at clutch shaft bearing arm (12) near first; Second compresses one end that bearing (19) is installed on the second roll bearing arm (16), the other end of the second roll bearing arm (16) is fixed on flat board by the second rotating shaft (15), and the second holddown spring (17) compresses bearing (19) place to the second roll bearing arm (16) to slide block (3) pressuring direction at the second roll bearing arm (16) near second.
4. a kind of two recessed centre of sphere line and end face squareness measurement mechanisms according to claim 1, it is characterized in that, the both sides of described slide block (3) are installed with magnet holder (20), each magnet holder (20) is installed with magnet (21), part to be measured (25) is placed in be determined after between bulb (24) and dynamic bulb (26), its end face is positioned between magnet (21) with parallel reflective mirror (22), parallel reflective mirror (22) is attracted by its magnetic force by magnet (21), the tested end face of its side and part to be measured (25) is fitted.
5. a kind of two recessed centre of sphere line and end face squareness measurement mechanisms according to claim 1, it is characterized in that, describedly determine bulb (24) and be fixed on flat board (2) by cylindrical handle, parallel reflective mirror (22) is " U " shape structure, its U-lag part is across being placed on described cylindrical handle, and parallel reflective mirror (22) anchorage force is in the vertical direction by parallel reflective mirror (22) and dull and stereotyped (2) upper each installation two magnet (27,28), be mounted opposite with magnetic pole, magnetic suspension force that both repel generation mutually provides.
6. a kind of two recessed centre of sphere line and end face squareness measurement mechanisms according to claim 1, it is characterized in that, one end of described slide block (3) is provided with flexible restoring organ, flexible restoring organ comprises back-moving spring (5), spring top (6), big spring seat (7) and set screw (8), wherein slide block (3) is withstood in one end of back-moving spring (5), the other end withstands spring top (6), spring top (6) is arranged at the inside of big spring seat (7), set screw (8) is through withstanding on spring top (6) after big spring seat (7), the degree of depth of big spring seat (7) is screwed in by changing set screw (8), the position on regulating spring top (6), and then regulate the compression degree of back-moving spring (5).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520201562.2U CN204575035U (en) | 2015-04-03 | 2015-04-03 | A kind of two recessed centre of sphere line and end face squareness measurement mechanisms |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520201562.2U CN204575035U (en) | 2015-04-03 | 2015-04-03 | A kind of two recessed centre of sphere line and end face squareness measurement mechanisms |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833318A (en) * | 2015-04-03 | 2015-08-12 | 北京航天控制仪器研究所 | Measuring device for perpendicularity of connecting line of two concave ball centers and end face |
| CN107655424A (en) * | 2017-09-21 | 2018-02-02 | 大族激光科技产业集团股份有限公司 | Testing apparatus for verticality and up- coiler |
| CN115615460A (en) * | 2022-09-26 | 2023-01-17 | 北京航天控制仪器研究所 | Magnetic suspension stator detection device |
-
2015
- 2015-04-03 CN CN201520201562.2U patent/CN204575035U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833318A (en) * | 2015-04-03 | 2015-08-12 | 北京航天控制仪器研究所 | Measuring device for perpendicularity of connecting line of two concave ball centers and end face |
| CN104833318B (en) * | 2015-04-03 | 2018-08-31 | 北京航天控制仪器研究所 | Two recessed centre of sphere lines of one kind and end face squareness measuring device |
| CN107655424A (en) * | 2017-09-21 | 2018-02-02 | 大族激光科技产业集团股份有限公司 | Testing apparatus for verticality and up- coiler |
| CN115615460A (en) * | 2022-09-26 | 2023-01-17 | 北京航天控制仪器研究所 | Magnetic suspension stator detection device |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20150819 Termination date: 20190403 |