CN112697015A - Spline effective length measuring head - Google Patents
Spline effective length measuring head Download PDFInfo
- Publication number
- CN112697015A CN112697015A CN202011448879.8A CN202011448879A CN112697015A CN 112697015 A CN112697015 A CN 112697015A CN 202011448879 A CN202011448879 A CN 202011448879A CN 112697015 A CN112697015 A CN 112697015A
- Authority
- CN
- China
- Prior art keywords
- guide cylinder
- thimble
- measuring head
- length measuring
- spline
- 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.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
Abstract
The invention discloses a spline effective length measuring head, relating to the technical field of measuring tools; the device comprises a guide cylinder with the inner diameter matched with the outer diameter of a workpiece to be measured, an end plate positioned at one end of the guide cylinder and a dial indicator connected with the end plate; a groove is formed between the external splines on the workpiece to be measured; the inner side of one end, far away from the end plate, of the guide cylinder is provided with a limiting protrusion matched with the groove, the side wall of the guide cylinder is provided with a thimble in a penetrating mode, the thimble is connected with the guide cylinder in a sliding mode, and the guide cylinder is provided with a limiting mechanism used for limiting the end, located outside the guide cylinder, of the thimble. The invention has the beneficial effects that: in this embodiment at every turn when measuring, the thimble homoenergetic supports and leans on the tank bottom at the recess, can not be because of the wearing and tearing of thimble with lead to measuring error.
Description
Technical Field
The invention belongs to the technical field of measuring tools, and particularly relates to a spline effective length measuring head.
Background
Spline coupling is an important coupling method in mechanical transmission. With the rapid development of manufacturing industries represented by the automobile industry, the demand for splines is increasing, and meanwhile, various requirements for the splines are higher and higher, and the detection items for the splines are also increasing.
Current measuring heads are prone to wear during measurement, resulting in measurement errors.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a spline effective length measuring head which is good in durability and accurate in measurement.
In order to achieve the purpose, the invention adopts the following technical scheme:
a spline effective length measuring head comprises a guide cylinder with the inner diameter matched with the outer diameter of a workpiece to be measured, an end plate positioned at one end of the guide cylinder and a dial indicator connected with the end plate; a groove is formed between the external splines on the workpiece to be measured; the inner side of one end, far away from the end plate, of the guide cylinder is provided with a limiting protrusion matched with the groove, the side wall of the guide cylinder is provided with a thimble in a penetrating mode, the thimble is connected with the guide cylinder in a sliding mode, and the guide cylinder is provided with a limiting mechanism used for limiting the end, located outside the guide cylinder, of the thimble.
Preferably, a spring used for applying force towards the outer side of the guide cylinder to the ejector pin is arranged on the guide cylinder, an iron block is arranged at one end, located on the outer side of the guide cylinder, of the ejector pin, an electromagnet is arranged on one side, away from the guide cylinder, of the iron block, and the electromagnet is fixedly connected with the guide cylinder.
Preferably, the limiting mechanism comprises an electric cylinder positioned outside the guide cylinder, a limiting plate positioned on one side of the iron block far away from the guide cylinder, and a proximity switch positioned on one side of the limiting plate close to the iron block; the limiting plate is connected with an output shaft of the electric cylinder, and the proximity switch is connected with the electric cylinder.
Preferably, a cavity is arranged in the side wall of the guide cylinder, the spring is located in the cavity and sleeved on the ejector pin, the ejector pin penetrates through the cavity, one end of the spring is connected with the inner wall of the cavity, and the other end of the spring is connected with the ejector pin.
Preferably, the guide cylinder and the end plate are of an integrally formed structure.
Preferably, the external splines of the workpiece to be measured are arranged in an annular array with the shaft of the workpiece to be measured as the center.
Preferably, the limiting protrusions are arranged in an annular array with the axis of the guide cylinder as the center.
The invention has the beneficial effects that: in this embodiment at every turn when measuring, the thimble homoenergetic supports and leans on the tank bottom at the recess, can not be because of the wearing and tearing of thimble with lead to measuring error.
Drawings
FIG. 1 is a schematic diagram of an embodiment;
FIG. 2 is a schematic view of the embodiment when measured;
FIG. 3 is a cross-sectional view B-B of FIG. 2;
FIG. 4 is a schematic diagram of a workpiece to be measured.
In the figure: the device comprises a workpiece to be measured 1, a guide cylinder 2, an end plate 3, a dial indicator 4, an external spline 5, a groove 6, a limiting protrusion 7, a thimble 8, a spring 9, an iron block 10, an electromagnet 11, an electric cylinder 12, a limiting plate 13, a proximity switch 14 and a cavity 15.
Detailed Description
The invention is explained in further detail below with reference to the figures and the detailed description:
example (b):
referring to fig. 1 to 4, a spline effective length measuring head comprises a guide cylinder 2 with an inner diameter matched with the outer diameter of a workpiece 1 to be measured, an end plate 3 positioned at one end of the guide cylinder 2, and a dial indicator 4 connected with the end plate 3;
a groove 6 is formed between the external splines 5 on the workpiece 1 to be measured;
the inboard of the one end of end plate 3 is kept away from to guide cylinder 2 is equipped with spacing arch 7 with recess 6 adaptation, it has thimble 8 to pass on the 2 lateral walls of guide cylinder, thimble 8 and 2 sliding connection of guide cylinder, be equipped with on the guide cylinder 2 and be used for carrying out spacing stop gear to the one end that thimble 8 is located the 2 outsides of guide cylinder.
Be equipped with on the guide cylinder 2 and be used for exerting the spring 9 towards the power in the guide cylinder 2 outside to thimble 8, the one end that thimble 8 is located the guide cylinder 2 outside is equipped with iron plate 10, one side that guide cylinder 2 was kept away from to iron plate 10 is equipped with electro-magnet 11, electro-magnet 11 and guide cylinder 2 rigid coupling.
The limiting mechanism comprises an electric cylinder 12 positioned on the outer side of the guide cylinder 2, a limiting plate 13 positioned on one side, far away from the guide cylinder 2, of the iron block 10, and a proximity switch 14 positioned on one side, close to the iron block 10, of the limiting plate 13;
the limiting plate 13 is connected with an output shaft of the electric cylinder 12, and the proximity switch 14 is connected with the electric cylinder 12.
Be equipped with cavity 15 in the lateral wall of guide cylinder 2, spring 9 is located cavity 15, spring 9 overlaps on thimble 8, thimble 8 passes cavity 15, spring 9 one end and the interior wall connection of cavity 15, the spring 9 other end is connected with thimble 8.
The guide cylinder 2 and the end plate 3 are of an integrally formed structure.
The external splines 5 of the workpiece 1 to be measured are arranged in an annular array with the shaft of the workpiece 1 to be measured as the center.
The limiting protrusions 7 are arranged in an annular array with the axis of the guide cylinder 2 as the center.
Principle of embodiment:
the end part of the external spline 5 of the workpiece 1 to be measured forms an arc transition region due to the process, and the effective length L of the external spline 5 is the length from the end part of the workpiece 1 to be measured to the starting point of the transition region, see fig. 4.
During measurement, an electromagnet 11 operates, an iron block 10 is adsorbed on the electromagnet, see a diagram 1, then a workpiece 1 to be measured is inserted from the end part of a guide cylinder 2, a limiting protrusion 7 is connected in a sliding manner in a groove 6, the limiting protrusion 7 is in clearance fit with the groove bottom of the groove 6, then the electromagnet is turned off, a thimble 8 is pressed against the groove bottom of the groove 6 under the action of a spring 9, see a diagram 3, then an electric cylinder 12 operates, a limiting plate 13 moves towards the iron block 10, when the iron block and the limiting plate abut against each other, a proximity switch 14 turns off the electric cylinder 12, then the workpiece 1 to be measured is continuously inserted into the guide cylinder 2, the end part of the workpiece 1 to be measured pushes a dial indicator 4, meanwhile, the end part of the thimble 8 slides in the groove bottom of the groove 6, when the end part of the thimble 8 reaches the starting point of the transition region (also the end part of the, referring to fig. 2, at this time, the effective length of the external spline 5 can be calculated from the reading of the dial indicator 4.
In this embodiment at every measurement, the thimble homoenergetic is supported and is leaned on the tank bottom of recess 6, can not be because of the wearing and tearing of thimble with lead to measuring error.
Claims (7)
1. A spline effective length measuring head is characterized by comprising a guide cylinder, an end plate and a dial indicator, wherein the inner diameter of the guide cylinder is matched with the outer diameter of a workpiece to be measured;
a groove is formed between the external splines on the workpiece to be measured;
the inner side of one end, far away from the end plate, of the guide cylinder is provided with a limiting protrusion matched with the groove, the side wall of the guide cylinder is provided with a thimble in a penetrating mode, the thimble is connected with the guide cylinder in a sliding mode, and the guide cylinder is provided with a limiting mechanism used for limiting the end, located outside the guide cylinder, of the thimble.
2. The effective spline length measuring head according to claim 1, wherein the guide cylinder is provided with a spring for applying a force to the thimble towards the outside of the guide cylinder, an iron block is provided at an end of the thimble located at the outside of the guide cylinder, an electromagnet is provided at a side of the iron block away from the guide cylinder, and the electromagnet is fixedly connected with the guide cylinder.
3. The spline effective length measurement head of claim 2, wherein;
the limiting mechanism comprises an electric cylinder positioned outside the guide cylinder, a limiting plate positioned on one side of the iron block far away from the guide cylinder, and a proximity switch positioned on one side of the limiting plate close to the iron block;
the limiting plate is connected with an output shaft of the electric cylinder, and the proximity switch is connected with the electric cylinder.
4. The effective spline length measuring head according to claim 2, wherein a cavity is formed in a side wall of the guide cylinder, the spring is located in the cavity, the spring is sleeved on the ejector pin, the ejector pin penetrates through the cavity, one end of the spring is connected with the inner wall of the cavity, and the other end of the spring is connected with the ejector pin.
5. The splined effective length measuring head of claim 1, wherein the guide cylinder and the end plate are of unitary construction.
6. The spline effective length measuring head of claim 1, wherein the external splines of the workpiece to be measured are arranged in an annular array centered on the axis of the workpiece to be measured.
7. The spline effective length measuring head according to claim 6, wherein the limit projections are arranged in an annular array centered on the axis of the guide cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011448879.8A CN112697015B (en) | 2020-12-09 | 2020-12-09 | Spline effective length measuring head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011448879.8A CN112697015B (en) | 2020-12-09 | 2020-12-09 | Spline effective length measuring head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112697015A true CN112697015A (en) | 2021-04-23 |
| CN112697015B CN112697015B (en) | 2022-06-21 |
Family
ID=75508358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011448879.8A Active CN112697015B (en) | 2020-12-09 | 2020-12-09 | Spline effective length measuring head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112697015B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201331322Y (en) * | 2008-10-31 | 2009-10-21 | 江苏飞船股份有限公司 | Internal spline M value detecting tool |
| CN202470961U (en) * | 2012-03-06 | 2012-10-03 | 上海纳铁福传动轴有限公司 | Measuring tool for measuring effective length of real axis spline |
| CN103376046A (en) * | 2013-07-17 | 2013-10-30 | 恒锋工具股份有限公司 | Handheld measuring instrument for internal spline M value |
| EP2696484A2 (en) * | 2012-08-08 | 2014-02-12 | Jtekt Corporation | Electric actuator |
| CN204535608U (en) * | 2015-04-21 | 2015-08-05 | 上海纳铁福传动系统有限公司 | A kind of for measuring the measurer of spline tooth root to shaft shoulder place reference point |
| CN105157514A (en) * | 2015-05-11 | 2015-12-16 | 恒锋工具股份有限公司 | External spline effective length gauge |
| CN107421414A (en) * | 2017-06-30 | 2017-12-01 | 天津天海同步科技有限公司 | A kind of axial workpiece internal spline bounce gauge |
| CN208671881U (en) * | 2018-07-20 | 2019-03-29 | 上海纳铁福传动系统有限公司 | Measure the measurer of internal spline multi-section stick spacing foozle |
| CN209085492U (en) * | 2018-12-01 | 2019-07-09 | 全南群英达电子有限公司 | A kind of detection device of quick detection head hold thimble size |
| CN210128685U (en) * | 2019-07-09 | 2020-03-06 | 河南九环汽车零部件有限公司 | Detection tool for detecting symmetry degree of two lug surfaces of spline shaft fork of transmission shaft |
| CN211717344U (en) * | 2019-09-24 | 2020-10-20 | 上海航翼高新技术发展研究院有限公司 | Aircraft valve clearance measurement frock |
| CN214120993U (en) * | 2020-12-09 | 2021-09-03 | 嘉兴科进机械制造有限公司 | Spline effective length measuring head |
-
2020
- 2020-12-09 CN CN202011448879.8A patent/CN112697015B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201331322Y (en) * | 2008-10-31 | 2009-10-21 | 江苏飞船股份有限公司 | Internal spline M value detecting tool |
| CN202470961U (en) * | 2012-03-06 | 2012-10-03 | 上海纳铁福传动轴有限公司 | Measuring tool for measuring effective length of real axis spline |
| EP2696484A2 (en) * | 2012-08-08 | 2014-02-12 | Jtekt Corporation | Electric actuator |
| CN103376046A (en) * | 2013-07-17 | 2013-10-30 | 恒锋工具股份有限公司 | Handheld measuring instrument for internal spline M value |
| CN204535608U (en) * | 2015-04-21 | 2015-08-05 | 上海纳铁福传动系统有限公司 | A kind of for measuring the measurer of spline tooth root to shaft shoulder place reference point |
| CN105157514A (en) * | 2015-05-11 | 2015-12-16 | 恒锋工具股份有限公司 | External spline effective length gauge |
| CN107421414A (en) * | 2017-06-30 | 2017-12-01 | 天津天海同步科技有限公司 | A kind of axial workpiece internal spline bounce gauge |
| CN208671881U (en) * | 2018-07-20 | 2019-03-29 | 上海纳铁福传动系统有限公司 | Measure the measurer of internal spline multi-section stick spacing foozle |
| CN209085492U (en) * | 2018-12-01 | 2019-07-09 | 全南群英达电子有限公司 | A kind of detection device of quick detection head hold thimble size |
| CN210128685U (en) * | 2019-07-09 | 2020-03-06 | 河南九环汽车零部件有限公司 | Detection tool for detecting symmetry degree of two lug surfaces of spline shaft fork of transmission shaft |
| CN211717344U (en) * | 2019-09-24 | 2020-10-20 | 上海航翼高新技术发展研究院有限公司 | Aircraft valve clearance measurement frock |
| CN214120993U (en) * | 2020-12-09 | 2021-09-03 | 嘉兴科进机械制造有限公司 | Spline effective length measuring head |
Non-Patent Citations (2)
| Title |
|---|
| 陆有为: "外花键有效长度检具的设计", 《工具技术》 * |
| 陆有为: "外花键有效长度检具的设计", 《工具技术》, 20 November 2015 (2015-11-20) * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112697015B (en) | 2022-06-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214120993U (en) | Spline effective length measuring head | |
| CN101722432A (en) | Bevel positioning lathe fixture for precision forging bevel gear | |
| CN201322590Y (en) | Detecting tool for unloading hole position of automobile power steering gear case | |
| CN101726226A (en) | Measuring device for true position of unloading hole of shell of power steering gear of automobile | |
| CN112697015B (en) | Spline effective length measuring head | |
| CN102032849B (en) | Micrometer for measuring over-ball distance between external gear and external spline | |
| CN103162601B (en) | Detection tool for detecting coaxiality and lengths of sliding sleeve spline and sliding sleeve shaft neck | |
| CN108469371B (en) | Integrated testing device and method for compression resistance and tension of electromagnet | |
| CN101865643A (en) | Wall thickness calipers for drum brake and hub | |
| CN201876219U (en) | Micrometer for measuring ball span of external gear and external spline | |
| CN107356220B (en) | Method for measuring axial characteristic quantity of automobile hub bearing outer ring and matching steel balls | |
| CN114654198B (en) | Floating pressure head with centering function | |
| CN212722017U (en) | Tensioner plunger detection device | |
| CN205120024U (en) | Iron gallium alloy displacement sensor | |
| CN220472525U (en) | Shaft gear semi-automatic bar-span gear measuring table assembly | |
| CN211452168U (en) | Detachable plug gauge for detecting rack and pinion steering gear shell | |
| CN101837490B (en) | Hobbing and positioning sleeve of gear-worm gear combined shaft | |
| CN102161156B (en) | Grooved pressing ring gap adjusting device | |
| CN111023961A (en) | Arc radius measuring instrument and measuring method | |
| CN206648590U (en) | The special fixture of quick detection machine tool electric support concentricity and flatness | |
| CN215766866U (en) | Coaxiality measuring mechanism | |
| CN218628193U (en) | Utensil is examined to profile of tooth part concentricity | |
| CN218955620U (en) | Gear ring M value gauge | |
| CN219037954U (en) | Motor housing wall thickness testing device | |
| CN203100651U (en) | Hand-held type internal spline M value general measuring instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |