CN203785593U - Planar spiral self-centering micrometer device - Google Patents
Planar spiral self-centering micrometer device Download PDFInfo
- Publication number
- CN203785593U CN203785593U CN201420165246.XU CN201420165246U CN203785593U CN 203785593 U CN203785593 U CN 203785593U CN 201420165246 U CN201420165246 U CN 201420165246U CN 203785593 U CN203785593 U CN 203785593U
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- China
- Prior art keywords
- centering
- bevel gear
- chuck
- fixedly connected
- bonnet
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a planar spiral self-centering micrometer device which is characterized in that the device is provided with a clamping disc, a rear cover, a measuring clamping claw, a rotating disc, a compressing spring, a gasket, a rotating shaft, a bevel gear wheel, a fixed sleeve and a power source. The upper end surface of the rotating disc is provided with planar spiral teeth, and the lower end surface is provided with a large bevel gear wheel. The clamping disc is evenly provided with mobile grooves. The two sides of the lower part of the measuring clamping claw are respectively provided with convex and concave surfaces which are matched with the mobile grooves, the lower end is provided with arc-shaped teeth which are matched with the spiral teeth, the internal side is provided with an external circle clamping surface, and the external side is provided with an internal diameter clamping surface. The lower end of the clamping disc is fixedly connected with the rear cover. The clamping disc and the rear cover are internally provided with the rotating disc coaxially. The upper end of the rotating disc is engaged with the lower end of the measuring clamping claw, and the lower end is fixedly connected with the rear cover. The side wall of the rear cover is provided with a through hole. The fixed sleeve is fixed in the through hole of the rear cover. The internal end of the rotating shaft is fixedly connected with the bevel gear wheel, and the external end is connected with the power source. The planar spiral self-centering micrometer device has advantages that measuring accuracy is high, measuring force is controllable and constant and centering is automatically performed, etc.
Description
Technical field
The utility model relates to surveying instrument technical field, specifically a kind of snail self-centering micrometer device.
Background technology
In mechanical manufacturing field, more and more higher to requirement on machining accuracy, surveying instrument instrument industry has had significant progress, but, the surveying instrument using after processing and instrument development are comparatively slow, and the measurement amplification method of energy use is also less, especially to the measurement of endoporus and cylindrical difficulty especially, mostly there is centering difficulty in existing measuring method, easily produces axis crooked and can not find maximum gauge and produce larger measuring error.
Summary of the invention
The object of the invention is to solve above-mentioned the deficiencies in the prior art, provide a kind of novel structure, easy to operate, measuring accuracy is high, ergometry is controlled and constant, self centering snail self-centering dial gauge.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of snail self-centering micrometer device, it is characterized in that being provided with chuck, bonnet, measure claw, rotating disk, holddown spring, packing ring, rotating shaft, bevel gear, fixed cover and power source, described rotating disk upper surface is provided with snail tooth outward taking center as the center of circle, lower surface is provided with bevel gear wheel, on described chuck, be laid with at least three mobile grooves, described mobile groove is aplysia punctata taking chuck hub as the center of circle and leads to chuck periphery, the transversal section of described mobile groove is " work " font, both sides, described measurement claw bottom are respectively equipped with the male and female face matching with mobile groove, lower end is provided with the arc-shaped gear matching with helical tooth, inner side is provided with cylindrical clamping surface, outside is provided with internal diameter clamping surface, described chuck lower end is coaxially fixedly connected with bonnet, in chuck and bonnet, be coaxially provided with rotating disk, described rotating disk upper end is meshed with the measurement claw lower end being inserted in the mobile groove of chuck, lower end is fixedly connected with bonnet with holddown spring through packing ring, described bonnet sidewall is provided with through hole, described fixed cover is fixed in the through hole of bonnet, described rotating shaft is through fixed cover, the inner is fixedly connected with bevel gear, outer end is connected with power source, described bevel gear is meshed with bevel gear wheel, drive rotating shaft rotation by power source, rotating shaft drives bevel gear and bevel gear wheel rotation, bevel gear wheel drives turntable rotation, and then drive the measurement claw of rotating disk upper end to do rectilinear motion as circular along mobile groove taking chuck hub, measuring internal diameter, external diameter is to realize self centering effect, greatly improve measuring accuracy.
The present invention can be provided with in rotating shaft rear end dynamometry control device, it comprises fixing sleeve, coupling shaft, little rotation set, stage clip, ratchet sleeve and gib screw, described rotating shaft outer end is fixed with fixing sleeve, described coupling shaft middle part circumference is provided with flange, one end is fixedly connected with spindle central, the other end is fixedly connected with trip bolt, described coupling shaft is to overlap successively and have ratchet sleeve from inside to outside, stage clip and little rotation set, described ratchet sleeve is the main ratchet sleeve that matches of a pair of ratchet and from ratchet sleeve, stage clip one end and coupling shaft are inconsistent, the other end and ratchet sleeve are inconsistent, little rotation set is located through ratchet sleeve and gib screw under the effect of stage clip, rotate little rotation set, make little rotation set pass through fixed screw, ratchet sleeve, stage clip and coupling shaft promote bevel gear shaft and rotate, finely tune, reach the effect that control survey power is constant.
The present invention can be provided with a millimeter scale mark at the mobile groove of the correspondence of chuck upper surface, described rotating disk circumference is provided with segmentation scale mark, described millimeter scale mark and segmentation scale mark can adopt the concave lower than disc surfaces, also can adopt the convex line higher than disc surfaces, be beneficial to reach the effect of accurate measurement.
The present invention can have large rotation set at fixing sleeve external stability cover, to reach the effect of protection rotating shaft.
The present invention is owing to adopting said structure, has novel structure, easy to operate, measuring accuracy is high, ergometry is controlled and the advantage such as constant, self-centering.
brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is vertical view of the present invention.
Fig. 3 is the structural representation of dynamometry control device in the present invention.
Reference numeral: rotating disk 1, measurement claw 2, packing ring 3, bonnet 4, holddown spring 5, chuck 6, rotating shaft 7, fixed cover 8 fixing sleeves 10, coupling shaft 11, stage clip 12, ratchet sleeve 13, little rotation set 14 and gib screw 15 bevel gears 18, snail tooth 19, bevel gear wheel 20.
Embodiment:
Below in conjunction with accompanying drawing, the present invention is further described:
As shown in drawings, a kind of snail self-centering micrometer device, it is characterized in that being provided with chuck 6, bonnet 4, measure claw 2, rotating disk 1, holddown spring 5, packing ring 3, rotating shaft 7, bevel gear 18, fixed cover 8 and power source, described rotating disk 1 upper surface is provided with snail tooth 19 outward taking center as the center of circle, lower surface is provided with bevel gear wheel, on described chuck 6, be laid with at least three mobile grooves, described mobile groove is aplysia punctata taking chuck 6 centers and leads to chuck 6 peripheries as the center of circle, the transversal section of described mobile groove is " work " font, described measurement claw 2 both sides, bottom are respectively equipped with the male and female face matching with mobile groove, lower end is provided with the arc-shaped gear matching with helical tooth, inner side is provided with cylindrical clamping surface, outside is provided with internal diameter clamping surface, described chuck 6 lower ends are coaxially fixedly connected with bonnet 4, the interior rotating disk 1 that is coaxially provided with of chuck 6 and bonnet 4, described rotating disk 1 upper end is meshed with measurement claw 2 lower ends that are inserted in the mobile groove of chuck 6, lower end is fixedly connected with bonnet 4 with holddown spring 5 through packing ring 3, described bonnet 4 sidewalls are provided with through hole, described fixed cover 8 is fixed in the through hole of bonnet 4, described rotating shaft 7 is through fixed cover 8, the inner is fixedly connected with bevel gear 18, outer end is connected with power source, described bevel gear 18 is meshed with bevel gear wheel 20, drive rotating shaft rotation by power source, rotating shaft drives bevel gear 18 and bevel gear wheel 20 to rotate, bevel gear wheel 20 drives rotating disk 1 to rotate, and then drive the measurement claw 2 of rotating disk 1 upper end to do rectilinear motion taking chuck 6 centers as circular along mobile groove, measuring internal diameter, external diameter is to realize self centering effect, greatly improve measuring accuracy.
The present invention can be provided with dynamometry control device in rotating shaft 7 rear ends, it comprises fixing sleeve 10, coupling shaft 11, little rotation set 14, stage clip 12, ratchet sleeve 13 and gib screw 15, described rotating shaft 7 outer ends are fixed with fixing sleeve 10, described coupling shaft 11 middle part circumference are provided with flange, one end is fixedly connected with rotating shaft 7 centers, the other end is fixedly connected with trip bolt 15, described coupling shaft 11 is to overlap successively from inside to outside to have ratchet sleeve 13, stage clip 12 and little rotation set 14, the main ratchet sleeve that described ratchet sleeve 13 matches for a pair of ratchet and from ratchet sleeve, stage clip 12 one end and coupling shaft 11 are inconsistent, the other end and ratchet sleeve 13 are inconsistent, little rotation set 14 is located through ratchet sleeve 13 and gib screw 15 under the effect of stage clip 12, rotate little rotation set 14, make little rotation set 14 by gib screw 15, ratchet sleeve 13, stage clip 12 and coupling shaft 11 promote bevel gear 18 and rotate, be beneficial to finely tune, reach the effect that control survey power is constant.
The present invention can be provided with millimeter scale mark 16 at the mobile groove of correspondence of chuck 7 upper surfaces, described rotating disk circumference is provided with segmentation scale mark 17, described millimeter scale mark 16 and segmentation scale mark 17 can adopt the concave lower than disc surfaces, also can adopt the convex line higher than disc surfaces, be beneficial to reach the effect of accurate measurement.
The present invention can have large rotation set 9 at fixing sleeve 10 external stability covers, to reach the effect of protection rotating shaft 7.
The present invention is in the time measuring, the method that adopts snail pitch to amplify by circumference is measured, screw drive three measuring claws move simultaneously and realize dead axle, centering, the workpiece of external diameter to be measured is enclosed within and is measured while workpiece being carried out to the measurement of external diameter on claw, by rotating little rotation set 14, drive shaft 7 is rotated, rotating shaft 7 is with dynamic bevel gear 18 to rotate, bevel gear 18 drives bevel gear wheel 20 to rotate, drive rotating disk 1 to rotate, in the time that rotating disk 1 rotates a circle, measure claw 2 in rotating disk 1 upper surface taking rotating disk 1 center as the center of circle simultaneously along a mobile tooth pitch on snail tooth, in the time need to measuring the internal diameter of workpiece, equally, by rotating little rotation set 14, drive shaft 7 is rotated, rotating shaft 7 is with dynamic bevel gear 18 to rotate, bevel gear 18 drives bevel gear wheel 20 to rotate, drive rotating disk 1 to rotate, the external diameter of workpiece is clamped through measuring claw, in the time that rotating disk 1 rotates a circle, measure claw and measure claw taking center of turntable as the center of circle simultaneously along a mobile tooth pitch on snail tooth at three of rotating disk upper surface, reach in the time of the internal diameter of measuring workpieces and external diameter and can realize self-centering, in the time that turning moment is excessive, the present invention is due to the main ratchet sleeve that adopts a pair of ratchet to match with from ratchet sleeve, make to skid from forming between ratchet sleeve and main ratchet sleeve, reach the size of control survey power, ensure the precision of measuring, prevent because the precision excessive but surface of the work of exerting oneself is destroyed.
Tool of the present invention has the following advantages: adopt snail to amplify, and self-centering when three measuring claws have been realized measurement, ergometry is controlled and constant, and measuring accuracy is high.
Claims (6)
1. a snail self-centering micrometer device, it is characterized in that being provided with chuck, bonnet, measure claw, rotating disk, holddown spring, packing ring, rotating shaft, bevel gear, fixed cover and power source, described rotating disk upper surface is provided with snail tooth outward taking center as the center of circle, lower surface is provided with bevel gear wheel, on described chuck, be laid with at least three mobile grooves, described mobile groove is aplysia punctata taking chuck hub as the center of circle and leads to chuck periphery, the transversal section of described mobile groove is " work " font, both sides, described measurement claw bottom are respectively equipped with the male and female face matching with mobile groove, lower end is provided with the arc-shaped gear matching with helical tooth, inner side is provided with cylindrical clamping surface, outside is provided with internal diameter clamping surface, described chuck lower end is coaxially fixedly connected with bonnet, in chuck and bonnet, be coaxially provided with rotating disk, described rotating disk upper end is meshed with the measurement claw lower end being inserted in the mobile groove of chuck, lower end is fixedly connected with bonnet with holddown spring through packing ring, described bonnet sidewall is provided with through hole, described fixed cover is fixed in the through hole of bonnet, described rotating shaft is through fixed cover, the inner is fixedly connected with bevel gear, outer end is connected with power source, described bevel gear is meshed with bevel gear wheel.
2. a kind of snail self-centering micrometer device according to claim 1, it is characterized in that described rotating shaft rear end is provided with dynamometry control device, it comprises fixing sleeve, coupling shaft, little rotation set, stage clip, ratchet sleeve and gib screw, described rotating shaft outer end is fixed with fixing sleeve, described coupling shaft middle part circumference is provided with flange, one end is fixedly connected with spindle central, the other end is fixedly connected with trip bolt, described coupling shaft is to overlap successively and have ratchet sleeve from inside to outside, stage clip and little rotation set, described ratchet sleeve is the main ratchet sleeve of a pair of ratchet relative engagement and from ratchet sleeve, stage clip one end and coupling shaft are inconsistent, the other end and ratchet sleeve are inconsistent, little rotation set is located through ratchet sleeve and gib screw under the effect of stage clip.
3. a kind of snail self-centering micrometer device according to claim 2, is characterized in that described fixing sleeve external stability cover has large rotation set.
4. a kind of snail self-centering micrometer device according to claim 1, is characterized in that the mobile groove of correspondence of described chuck upper surface is provided with a millimeter scale mark, and described rotating disk circumference is provided with segmentation scale mark.
5. a kind of snail self-centering micrometer device according to claim 4, is characterized in that described millimeter scale mark and segmentation scale mark adopt the concave lower than disc surfaces.
6. a kind of snail self-centering micrometer device according to claim 4, is characterized in that described millimeter scale mark and segmentation scale mark adopt the convex line higher than disc surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420165246.XU CN203785593U (en) | 2014-04-08 | 2014-04-08 | Planar spiral self-centering micrometer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420165246.XU CN203785593U (en) | 2014-04-08 | 2014-04-08 | Planar spiral self-centering micrometer device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203785593U true CN203785593U (en) | 2014-08-20 |
Family
ID=51321771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420165246.XU Withdrawn - After Issue CN203785593U (en) | 2014-04-08 | 2014-04-08 | Planar spiral self-centering micrometer device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203785593U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884257A (en) * | 2014-04-08 | 2014-06-25 | 付振山 | Plane spiral self-centering micrometer device |
| CN108613612A (en) * | 2018-06-21 | 2018-10-02 | 江苏理工学院 | A kind of annular groove diameter measurement tool |
| CN115752335A (en) * | 2022-11-14 | 2023-03-07 | 绍兴市特种设备检测院 | Pipeline internal diameter detection device |
-
2014
- 2014-04-08 CN CN201420165246.XU patent/CN203785593U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884257A (en) * | 2014-04-08 | 2014-06-25 | 付振山 | Plane spiral self-centering micrometer device |
| CN103884257B (en) * | 2014-04-08 | 2016-09-07 | 付振山 | Snail self-centering micrometer device |
| CN108613612A (en) * | 2018-06-21 | 2018-10-02 | 江苏理工学院 | A kind of annular groove diameter measurement tool |
| CN108613612B (en) * | 2018-06-21 | 2020-10-30 | 江苏理工学院 | Annular groove diameter measuring tool |
| CN115752335A (en) * | 2022-11-14 | 2023-03-07 | 绍兴市特种设备检测院 | Pipeline internal diameter detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140820 Effective date of abandoning: 20160907 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |