CN203542372U - High-accuracy rotation concave tip locating device used for external grinding machine tool - Google Patents
High-accuracy rotation concave tip locating device used for external grinding machine tool Download PDFInfo
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- CN203542372U CN203542372U CN201320705632.9U CN201320705632U CN203542372U CN 203542372 U CN203542372 U CN 203542372U CN 201320705632 U CN201320705632 U CN 201320705632U CN 203542372 U CN203542372 U CN 203542372U
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- mandrel
- outer sleeve
- groove
- point
- machine tool
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Abstract
The utility model provides a high-accuracy rotation concave tip locating device used for an external grinding machine tool, and belongs to the technical field of technology equipment. According to the high-accuracy rotation concave tip locating device, the spherical surface and the a top hole of a technology ball are used as the standard, a locating circle is machined, it can be guaranteed that the concentricity of the technology ball is below phi 0.01 mm, and the problem that spherical surface grinding time is long to enable working procedures to be delayed is solved. The high-accuracy rotation concave tip locating device comprises a fixing shaft, an outer sleeve and a core shaft, wherein a connection plate of the fixing shaft is connected with the outer sleeve, the end face, connected with the outer sleeve, of the connection plate is provided with a locating protrusion which is arranged inside the outer sleeve, the inner end of the core shaft is connected with the fixing shaft through a thrust ball bearing arranged inside a step groove, the middle portion of the core shaft is connected with the outer sleeve through two single-row radial ball bearings, limiting sleeves are arranged between the outer sleeve and the core shaft and between the two single-row radial ball bearings respectively, and gaps are formed between the corresponding limiting sleeve and the outer sleeve or the core shaft, and gaps are formed between the corresponding limiting sleeve and the two single-row radial ball bearings.
Description
Technical field
The utility model belongs to equipment Technology field, particularly relates to a kind of point of the high-precision rotary concave crown for outer grinding machine tool positioner.
Background technology
Present frock, particularly vane gauge class frock, often operation ball is as location, detection reference; Due to scene first match grinding process ball setting circle, rear mill, grind sphere, cause technological ball sphere and setting circle concentricity about φ 0.03mm, produce larger rigging error; If use anchor top, the processing setting circle take technological ball sphere and apical pore as benchmark, causes sphere cannot use because of heavy wear.
Utility model content
The problem existing for prior art, the utility model provides a kind of point of the high-precision rotary concave crown for outer grinding machine tool positioner, this device has guaranteed that the axiality of mandrel concave crown point and fixed axis cone is within the scope of 0.004～0.006mm, take technological ball sphere and apical pore as benchmark, processing setting circle, can guarantee that technological ball concentricity is in φ 0.01mm, solve because of mill, ground the long problems such as operation wait that occur of sphere time.
To achieve these goals, the utility model adopts following technical scheme: a kind of point of the high-precision rotary concave crown for outer grinding machine tool positioner, comprise fixed axis, outer sleeve and mandrel, fixed axis one end is cone, one end that cone diameter is large is connected with one end of connector, the other end of connector is fixedly connected with an end face of terminal pad, the other end of terminal pad is connected with one end of outer sleeve, on the end face being connected with outer sleeve at terminal pad, be provided with positioning convex, positioning convex is arranged in outer sleeve, and the inwall close contact of the outer wall of positioning convex and outer sleeve, on the end face of positioning convex, be provided with step trough, step trough is comprised of the first groove and the second groove, the diameter of the first groove is greater than the diameter of the second groove, mandrel the inner is connected with fixed axis by the thrust ball bearing being arranged in step trough, is arranged between the outer ring of the thrust ball bearing in the second groove of step trough and the second groove inwall and is fixedly connected with, and its inner ring does not contact with mandrel, be arranged between the inner ring of the thrust ball bearing in the first groove of step trough and mandrel outer wall and be fixedly connected with, between the first groove inwall of its outer ring and step trough, leave gap, mandrel middle part is connected with outer sleeve by two single-row radial ball bearings, in two single-row radial ball bearings, outer ring respectively with mandrel middle part outer wall, between outer sleeve inwall, be fixedly connected with, in mandrel outer end, be coaxially arranged with turbination groove, this turbination groove is concave crown point, between outer sleeve and mandrel, between two single-row radial ball bearings, be provided with stop collar, between stop collar and outer sleeve or mandrel, there is gap, between stop collar and two single-row radial ball bearings, there is gap.
Described outer sleeve arranges the blanking cover with through hole near the outer end of concave crown point, and outer sleeve is connected with blanking cover, and mandrel outer end is arranged on blanking cover outside by the through hole of blanking cover.
Between described mandrel and blanking cover, be provided with sealing ring.
On described blanking cover inner face, be provided with projection, the outer ring of protruding with adjacent single-row radial ball bearing contacts.
On the mandrel of described blanking cover and outer sleeve outside, be radially provided with screwed hole, in screwed hole, be provided with screw.
It is P4 level that described single-row radial ball bearing adopts the grade of tolerance.
The cone of described fixed axis is Mohs cone.
The cone angle of the concave crown point of described mandrel is 60 °.
The beneficial effects of the utility model:
The utility model provides a kind of point of the high-precision rotary concave crown for outer grinding machine tool positioner, this device has guaranteed that the axiality of mandrel concave crown point and fixed axis cone is within the scope of 0.004～0.006mm, take technological ball sphere and apical pore as benchmark, processing setting circle, can guarantee that technological ball concentricity is in φ 0.01mm, solve because of mill, ground the long problems such as operation wait that occur of sphere time; The utility model compact conformation, is convenient to install, debugs, checks.
The utility model has solved the not high problem of similar technological ball part tooling concentricity, and changed the work flow of similar technological ball part, improve the crudy of similar technological ball part, be also applicable to the Cylindrical Grinding Processes of the top class part with 60 ° of cone angles.The utility model device adopts domestic Machining Technology to manufacture, and can guarantee its service precision, has manufacture feasibility; The utility model device can be used as outer grinding machine tool annex and offers user, meets user's instructions for use.
Accompanying drawing explanation
Fig. 1 is the structural representation of the point of the high-precision rotary concave crown for outer grinding machine tool positioner of the present utility model;
In figure, 1-fixed axis, 2-outer sleeve, 3--blanking cover, 4--mandrel, 5--stop collar, 6--single-row radial ball bearing, 7--thrust ball bearing, 8--bolt, 9--sealing ring, 10--screw, 11--technological ball, 12-concave crown point, 13-setting circle, 14--cone, 15--terminal pad, 16--positioning convex, 17--step trough, the 18-the first groove, the 19-the second groove, 20-connector.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, a kind of point of the high-precision rotary concave crown for outer grinding machine tool positioner, comprise fixed axis 1, outer sleeve 2 and mandrel 4, fixed axis 1 one end is cone 14, one end that cone 14 diameters are large is connected with one end of connector 20, the other end of connector 20 is fixedly connected with an end face of the terminal pad 15 of coaxial setting, the other end of terminal pad 15 is connected by the bolt 8 of axial setting with one end of outer sleeve 2, on the end face being connected with outer sleeve 2 at terminal pad 15, be provided with positioning convex 16, positioning convex 16 is arranged in outer sleeve 2, and the inwall close contact of the outer wall of positioning convex 16 and outer sleeve 2, on the end face of positioning convex 16, be provided with step trough 17, step trough 17 is comprised of the first groove 18 and the second groove 19, the diameter of the first groove 18 is greater than the diameter of the second groove 19, mandrel 4 the inners are connected with fixed axis 1 by the thrust ball bearing 7 being arranged in step trough 17, be arranged on interference fit between the outer ring of the thrust ball bearing 7 in the second groove 19 of step trough 17 and the second groove 19 inwalls, its inner ring does not contact with mandrel 4, prevents from interfering mandrel 4 to rotate, be arranged on interference fit between the inner ring of the thrust ball bearing 7 in the first groove 18 of step trough 17 and mandrel 4 outer walls, between the first groove 18 inwalls of its outer ring and step trough 17, leave gap, prevent that the first groove 18 inwalls from interfering thrust ball bearings 7 to rotate, mandrel 4 middle parts are connected with outer sleeve 2 by two single-row radial ball bearings 6, the inside and outside circle of two single-row radial ball bearings 6 interference fit respectively and between mandrel 4 middle part outer walls, outer sleeve 2 inwalls, prevent that the interior steel ball of single-row radial ball bearing 6 is subject to shearing force effect, affects axial precision, in mandrel 4 outer ends, be coaxially arranged with turbination groove, this turbination groove is concave crown point 12, be used for placing technological ball 11, between outer sleeve 2 and mandrel 4, be provided with stop collar 5 between two single-row radial ball bearings 6, between stop collar 5 and outer sleeve 2 or mandrel 4, there is gap, between stop collar 5 and two single-row radial ball bearings 6, there is gap, to single-row radial ball bearing 6 is not applied to axial force, and do not allow single-row radial ball bearing 6 axially-movables excessive.
Described outer sleeve 2 arranges the blanking cover 3 with through hole near the outer end of concave crown point 12, and the screw 10 by axial setting between outer sleeve 2 and blanking cover 3 is connected, and mandrel 4 outer ends are arranged on blanking cover 3 outsides by the through hole of blanking cover 3.
Between described mandrel 4 and blanking cover 3, be provided with sealing ring 9.
On described blanking cover 3 inner faces, be provided with projection, the outer ring of protruding with adjacent single-row radial ball bearing 6 contacts, and prevents from interfering single-row radial ball bearing 6 inner ring rotations.
On the mandrel 4 of described blanking cover 3 and outer sleeve 2 outsides, be radially provided with screwed hole, be provided with screw in screwed hole, the shift fork of being convenient on outer grinding machine tool promotes.
It is P4 level that described single-row radial ball bearing 6 adopts the grade of tolerance.
The cone 14 of described fixed axis 1 is Mohs cone.
The cone angle of the concave crown point 12 of described mandrel 4 is 60 °.
The cylindricity of described outer sleeve 2 inwalls is φ 0.003～φ 0.005mm; Outer sleeve 2 and two single-row radial ball bearing 6 outer ring axial lamination volumes are 0.003～0.008mm.
Below in conjunction with accompanying drawing, a use procedure of the present utility model is described:
As shown in Figure 1, first installation before the utility model device, by the cone of the utility model device 14 outer surfaces, lathe inner conical drogue inner surface carries out cleaning, after the cone of the utility model device 14 is connected with lathe inner conical drogue, by the shift fork on outer grinding machine tool, promote to be arranged on the screw turns mandrel 4 in mandrel 4 screwed holes, with amesdial inspection mandrel 4 concave crowns point 12 inwall jerk values, because lathe inner conical drogue is inevitable, there is the error causing because of factors such as wearing and tearing, cause mandrel 4 concave crown point 12 inwall jerk values to exceed claimed range, adopt following solution: rotate the utility model device, in different angles, check, choose mandrel 4 concave crown point 12 positions, inwall minimum of a value place and carry out mark, all by mark position, the utility model device is installed later at every turn, but before each use, the inspection of all will beating.
By technological ball 11 right-hand member spheres and mandrel 4 concave crown point 12 inwall close contacts, technological ball 11 left end apical pores adopt top the withstanding of elastic tail of outer grinding machine tool, by the top pressure of elastic tail of adjusting outer grinding machine tool, guarantee mandrel 4 and the synchronized rotating Vortex of technological ball 11, after technological ball 11 rotations, processing technology ball 11 left end setting circles 13.
Claims (8)
1. the point of the high-precision rotary concave crown for an outer grinding machine tool positioner, it is characterized in that comprising fixed axis, outer sleeve and mandrel, fixed axis one end is cone, one end that cone diameter is large is connected with one end of connector, the other end of connector is fixedly connected with an end face of terminal pad, the other end of terminal pad is connected with one end of outer sleeve, on the end face being connected with outer sleeve at terminal pad, be provided with positioning convex, positioning convex is arranged in outer sleeve, and the inwall close contact of the outer wall of positioning convex and outer sleeve, on the end face of positioning convex, be provided with step trough, step trough is comprised of the first groove and the second groove, the diameter of the first groove is greater than the diameter of the second groove, mandrel the inner is connected with fixed axis by the thrust ball bearing being arranged in step trough, is arranged between the outer ring of the thrust ball bearing in the second groove of step trough and the second groove inwall and is fixedly connected with, and its inner ring does not contact with mandrel, be arranged between the inner ring of the thrust ball bearing in the first groove of step trough and mandrel outer wall and be fixedly connected with, between the first groove inwall of its outer ring and step trough, leave gap, mandrel middle part is connected with outer sleeve by two single-row radial ball bearings, in two single-row radial ball bearings, outer ring respectively with mandrel middle part outer wall, between outer sleeve inwall, be fixedly connected with, in mandrel outer end, be coaxially arranged with turbination groove, this turbination groove is concave crown point, between outer sleeve and mandrel, between two single-row radial ball bearings, be provided with stop collar, between stop collar and outer sleeve or mandrel, there is gap, between stop collar and two single-row radial ball bearings, there is gap.
2. the point of the high-precision rotary concave crown for outer grinding machine tool positioner according to claim 1, it is characterized in that described outer sleeve arranges the blanking cover with through hole near the outer end of concave crown point, outer sleeve is connected with blanking cover, and mandrel outer end is arranged on blanking cover outside by the through hole of blanking cover.
3. the point of the high-precision rotary concave crown for outer grinding machine tool positioner according to claim 2, is characterized in that being provided with sealing ring between described mandrel and blanking cover.
4. the point of the high-precision rotary concave crown for outer grinding machine tool positioner according to claim 2, is characterized in that being provided with projection on described blanking cover inner face, and the outer ring of protruding with adjacent single-row radial ball bearing contacts.
5. the point of the high-precision rotary concave crown for outer grinding machine tool positioner according to claim 1, is characterized in that being radially provided with screwed hole on the mandrel of described blanking cover and outer sleeve outside, is provided with screw in screwed hole.
6. the point of the high-precision rotary concave crown for outer grinding machine tool positioner according to claim 1, is characterized in that it is P4 level that described single-row radial ball bearing adopts the grade of tolerance.
7. the point of the high-precision rotary concave crown for outer grinding machine tool positioner according to claim 1, the cone that it is characterized in that described fixed axis is Mohs cone.
8. the point of the high-precision rotary concave crown for outer grinding machine tool positioner according to claim 1, the cone angle that it is characterized in that the concave crown point of described mandrel is 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320705632.9U CN203542372U (en) | 2013-11-08 | 2013-11-08 | High-accuracy rotation concave tip locating device used for external grinding machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320705632.9U CN203542372U (en) | 2013-11-08 | 2013-11-08 | High-accuracy rotation concave tip locating device used for external grinding machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203542372U true CN203542372U (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320705632.9U Expired - Fee Related CN203542372U (en) | 2013-11-08 | 2013-11-08 | High-accuracy rotation concave tip locating device used for external grinding machine tool |
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| Country | Link |
|---|---|
| CN (1) | CN203542372U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114838643A (en) * | 2022-07-04 | 2022-08-02 | 西安西鹰精密机械有限责任公司 | Aero-engine blade superposed shaft reference detection device and method |
-
2013
- 2013-11-08 CN CN201320705632.9U patent/CN203542372U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114838643A (en) * | 2022-07-04 | 2022-08-02 | 西安西鹰精密机械有限责任公司 | Aero-engine blade superposed shaft reference detection device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20171108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |