CN204788318U - Crack measuring device disappears - Google Patents
Crack measuring device disappears Download PDFInfo
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- CN204788318U CN204788318U CN201520394523.9U CN201520394523U CN204788318U CN 204788318 U CN204788318 U CN 204788318U CN 201520394523 U CN201520394523 U CN 201520394523U CN 204788318 U CN204788318 U CN 204788318U
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- gear
- rotating shaft
- shaft
- encoder
- main drive
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Abstract
The utility model discloses a crack measuring device disappears belongs to machine design and mechanical transmission technical field. The rack is fixed on the base of lathe, and the encoder support links firmly with lathe moving part, absolute encoder fixes on the encoder support, and the pivot lies in the encoder support, and the diaxon holds and lies in shaft shoulder tip respectively, pivot one end and absolute encoder input shaft link firmly, and the master gear links firmly through the parallel key with the pivot other end, be located main gear end from the gear, and link firmly through set screw with the pivot, the master gear with be connected with the torsional spring from between the gear, the axle head retaining ring is fixed at shaft ends, the axle head retaining ring is used for guaranteeing to follow the gear and can not be popped out by the torsional spring and break away from with the pivot. Measuring device can accurately measure lathe moving part's linear displacement, does not have reverse hysterisis error, does not have accumulative error to the signal is not lost when falling the electricity. Measuring device portability is strong, and the range of application is wide, still can be used to the measurement of counter gear axle angle of revolution.
Description
Technical field
The utility model belongs to Machine Design and technical field of mechanical transmission, specifically, relates to one and to disappear gap measurement mechanism.
Background technology
Absolute type encoder is widely used in the measurement of the anglec of rotation, straight-line displacement, rotating speed.Absolute type encoder is a kind of detecting element of direct coding, is represented the absolute position of axle, do not have cumulative errors by the pattern read on code-disc, and after power supply excision, signal is not lost.Usually be contained on measured axis, rotate with measured axis, the angular displacement of measured axis can be converted to the digital code of absolute type.On numerically-controlled machine, it coaxially connects with drive motor usually, belongs to indirect inspection.Due in the transmission process of turning axle to final moving component, there is the existence of backlash, therefore, usually can not draw the position of final moving component by this method very accurately.In engineering, use grating, magnetic grid, can measure the displacement of parts moving linearly very accurately, but grating, magnetic grid can only obtain increment signal, can not obtain absolute position signal, once power down, signal will be lost.
Summary of the invention
In order to avoid the deficiency that prior art exists, the utility model proposes one and to disappear gap measurement mechanism, measurement mechanism can measure the position of machine tool motion component accurately, eliminate the impact of backlash, and during power down, signal is not lost.
The utility model solves the technical scheme that its technical matters adopts: comprise encoder support, absolute type encoder, holding screw, rotating shaft, bearing, main drive gear, from gear, torsion spring, shaft end ring, dog screw, encoder support and machine tool motion component are connected, absolute type encoder is fixed on encoder support, rotating shaft is positioned at encoder support, two bearings lays respectively at rotating shaft shaft shoulder end, and coordinate with encoder support inwall, rotating shaft one end and absolute type encoder input shaft are connected, main drive gear and the rotating shaft other end are connected by flat key, main drive gear end is positioned in rotating shaft from gear set, and located by dog screw with rotating shaft, main drive gear and be connected with torsion spring between gear, shaft end ring is fixed on roller end, be used for ensureing to be ejected by torsion spring from gear to depart from rotating shaft,
Described rotating shaft is Step Shaft, rotating shaft two end axles to there being tapped blind hole, the screw that rotating shaft both ends radial direction has the screw that coordinates with holding screw and dog screw to coordinate respectively.
Absolute type encoder, main drive gear, coaxially to install from gear and rotating shaft.
Beneficial effect
The one that the utility model proposes disappears gap measurement mechanism, is the gap measurement mechanism that disappears of the use absolute type encoder based on torsion spring and two side set gears, is specially adapted to the straight-line displacement of measuring machine tool motion component.Tooth bar is fixed on the base of lathe, and encoder support and machine tool motion component are connected; Absolute type encoder is fixed on encoder support, rotating shaft is positioned at encoder support, two bearings lays respectively at shaft shoulder end, rotating shaft one end and absolute type encoder input shaft are connected, and main drive gear and the rotating shaft other end are connected by flat key, are positioned at main drive gear end from gear, and located by dog screw with rotating shaft, main drive gear and be connected with torsion spring between gear, shaft end ring is fixed on roller end, and shaft end ring is used for ensureing to be ejected by torsion spring from gear depart from rotating shaft.The utility model measurement mechanism accurately can measure the straight-line displacement of machine tool motion component, without reverse hysterisis error, do not have cumulative errors, and during power down, signal is not lost.The utility model measurement mechanism structure is simple, easy for installation, precision is high, cost is low, and portable strong, applied range, also can be used for the measurement to gear shaft angle of revolution.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the utility model one gap measurement mechanism that disappears is described in further detail.
Fig. 1 is that the utility model disappears gap measurement mechanism structural representation.
Fig. 2 is that the utility model gap measurement mechanism that disappears carries out straight-line displacement instrumentation plan.
Fig. 3 is that the utility model gap measurement mechanism that disappears carries out angle of revolution instrumentation plan.
In figure:
1. holding screw 2. encoder support 3. bearing 4. main drive gear 5. flat key 6. torsion spring 7. is from gear 8. shaft end ring 9. dog screw 10. rotating shaft 11. absolute type encoder 12. tooth bar 13. gear shaft
Embodiment
The present embodiment is that one disappears gap measurement mechanism.
Embodiment 1
Consult Fig. 1 ~ Fig. 3, the present embodiment measurement mechanism is by holding screw 1, encoder support 2, bearing 3, main drive gear 4, flat key 5, torsion spring 6, form from gear 7, shaft end ring 8, dog screw 9, rotating shaft 10, absolute type encoder 11 and tooth bar 12; Absolute type encoder 11 is fixedly connected with encoder support 2, it is inner that rotating shaft 10 is arranged on encoder support 2, the input shaft of absolute type encoder 11 is fixedly connected with by holding screw 1 with one end of rotating shaft 10, the input shaft of absolute type encoder 11 and rotating shaft 10 synchronous axial system, main drive gear 4 is installed and from gear 7 at the other end of rotating shaft 10, main drive gear 4 is fixedly connected with by flat key 5 with rotating shaft 10, directly be sleeved on rotating shaft 10 from gear 7, and can 10 to rotate, from the end face of gear 7 near the end of rotating shaft 10 around the shaft; Main drive gear 4 with have aperture from the axis of gear 7, the two ends of torsion spring are stretched into aperture respectively and are fixed, main drive gear 4 is connected by torsion spring with between gear 7, and the axial location ensureing from gear 7 by dog screw 9 from gear 7 in rotating shaft 10, the end face of rotating shaft 10 is provided with shaft end ring 8.
In the present embodiment, the gap that disappears measurement mechanism is arranged on machine tool motion component.Tooth bar 12 is arranged on the base of lathe, and encoder support 2 and machine tool motion component are connected.During installation, main drive gear 4 is arranged in rotating shaft 10 and is fixedly connected with by flat key, and be sleeved on rotating shaft 10 from gear 7, main drive gear 4 is connected by torsion spring with from gear 7, tightens shaft end ring.Now, rotate from gear 7, because the effect of torsion spring, main drive gear 4 and between gear 7, there is moment of torsion, turn to the size to fit making moment of torsion, and main drive gear 4 tooth and engaging with two sides of a teeth groove of tooth bar 12 respectively from a tooth of gear 7; Tighten dog screw 9, make main drive gear 4 and keep fixing from the relative position of gear 7, then device is placed in corresponding installation site on machine tool motion component, make main drive gear 4 tooth and engage with two sides of a teeth groove of tooth bar 12 respectively from a tooth of gear 7, unclamp dog screw 9, fix device.Now, along with the motion of machine tool motion component, main drive gear 4 and rotating from gear 7, and there is a tooth to engage with two sides of a teeth groove of tooth bar 12 all the time respectively, absolute type encoder 11 input shaft synchronous axial system is driven by rotating shaft 10, the straight-line displacement of machine tool motion component can be obtained by simply converting, when machine tool motion component counter motion, engage due to main drive gear 4 with from two sides of gear 7 with the same teeth groove of tooth bar 12, so there is no backlash, measurement there will not be reverse hysterisis error, there is no cumulative errors, during power down, signal is not lost.
Embodiment 2
Consult Fig. 1 ~ Fig. 3, the present embodiment disappears gap measurement mechanism by holding screw 1, encoder support 2, bearing 3, main drive gear 4, flat key 5, torsion spring 6, form from gear 7, shaft end ring 8, screw 9, rotating shaft 10, absolute type encoder 11 and gear shaft 13.Absolute type encoder 11 is fixedly connected with encoder support 2, it is inner that rotating shaft 10 is arranged on encoder support 2, the input shaft of absolute type encoder 11 extend into one end of rotating shaft 10, the radial direction of rotating shaft 10 is connected by the input shaft of holding screw and absolute type encoder 11, makes absolute type encoder 11 input shaft and rotating shaft 10 synchronous axial system; Main drive gear 4 is installed and from gear 7, main drive gear 4 is connected by flat key 5 with rotating shaft 10 at the other end of rotating shaft 10, is sleeved on rotating shaft 10 from gear 7, and can 10 to rotate around the shaft.From end face near rotating shaft 10 of the end face of gear 7, main drive gear 4 with have aperture from the axis of gear 7, the two ends of torsion spring are stretched into aperture respectively and are fixed, main drive gear 4 is connected by torsion spring with between gear 7, by dog screw 9, rotating shaft 10 ensures that rotating shaft 10 end face is provided with shaft end ring 8 from the axial location of gear 7 on rotating shaft 10 from gear 7.
In the present embodiment, the gap that disappears measurement mechanism is fixedly mounted on machine tool motion component; When the anglec of rotation of prototype gear axle 13, main drive gear 4 and rotating shaft 10 are connected by flat key 5, and be sleeved on rotating shaft 10 from gear 7, main drive gear 4 is connected by torsion spring 6 with from gear 7, tightens shaft end ring; Now, rotate from gear 7, in the effect of torsion spring, main drive gear 4 and between gear 7, there is moment of torsion, rotate the size to fit making moment of torsion, and main drive gear 4 tooth and two sides of a teeth groove cogged with gear shaft 13 respectively from a tooth of gear 7 are engaged, and tighten dog screw 9, make main drive gear 4 and keep fixing from the relative position of gear 7.Measurement mechanism is placed in corresponding installation site in frame, and two sides of the teeth groove making main drive gear 4 tooth and cog with gear shaft 13 respectively from a tooth of gear 7 are engaged; Unclamp dog screw 9, along with the rotation of tested gear shaft 13, main drive gear 4 and thereupon rotating from gear 7, and two sides of the teeth groove having a tooth and gear shaft 13 to cog all the time are respectively engaged, absolute type encoder 11 input shaft synchronous axial system is driven, by the anglec of rotation that can obtain gear shaft that converts by rotating shaft 10.When gear shaft 13 rotates backward, because main drive gear 4 and two sides of same teeth groove of cogging with gear shaft 13 all the time from gear 7 are engaged, so there is no backlash, measure and there will not be reverse hysterisis error; Measurement mechanism adopts absolute type encoder, and do not have cumulative errors, during power down, signal is not lost.
Claims (2)
1. the gap measurement mechanism that disappears, it is characterized in that: comprise encoder support, absolute type encoder, holding screw, rotating shaft, bearing, main drive gear, from gear, torsion spring, shaft end ring, dog screw, encoder support and machine tool motion component are connected, absolute type encoder is fixed on encoder support, rotating shaft is positioned at encoder support, two bearings lays respectively at rotating shaft shaft shoulder end, and coordinate with encoder support inwall, rotating shaft one end and absolute type encoder input shaft are connected, main drive gear and the rotating shaft other end are connected by flat key, main drive gear end is positioned in rotating shaft from gear set, and located by dog screw with rotating shaft, main drive gear and be connected with torsion spring between gear, shaft end ring is fixed on roller end, be used for ensureing to be ejected by torsion spring from gear to depart from rotating shaft,
Described rotating shaft is Step Shaft, rotating shaft two end axles to there being tapped blind hole, the screw that rotating shaft both ends radial direction has the screw that coordinates with holding screw and dog screw to coordinate respectively.
2. the gap measurement mechanism that disappears according to claim 1, is characterized in that: absolute type encoder, main drive gear, coaxially install from gear and rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520394523.9U CN204788318U (en) | 2015-06-10 | 2015-06-10 | Crack measuring device disappears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520394523.9U CN204788318U (en) | 2015-06-10 | 2015-06-10 | Crack measuring device disappears |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204788318U true CN204788318U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520394523.9U Active CN204788318U (en) | 2015-06-10 | 2015-06-10 | Crack measuring device disappears |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204788318U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930995A (en) * | 2015-06-10 | 2015-09-23 | 西北工业大学 | Torsion spring-based novel measuring device |
| CN108225257A (en) * | 2017-12-14 | 2018-06-29 | 中国北方车辆研究所 | A kind of speed-increasing type azimuth sensor |
-
2015
- 2015-06-10 CN CN201520394523.9U patent/CN204788318U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930995A (en) * | 2015-06-10 | 2015-09-23 | 西北工业大学 | Torsion spring-based novel measuring device |
| CN108225257A (en) * | 2017-12-14 | 2018-06-29 | 中国北方车辆研究所 | A kind of speed-increasing type azimuth sensor |
| CN108225257B (en) * | 2017-12-14 | 2022-04-08 | 中国北方车辆研究所 | Speed-up type azimuth sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190118 Address after: Room 404, Material Building, Northwest Polytechnic University, 127 Youyi West Road, Xi'an City, Shaanxi Province, 710072 Patentee after: Xi'an Northwestern Polytechnical University Asset Management Co., Ltd. Address before: 710072 No. 127 Youyi West Road, Shaanxi, Xi'an Patentee before: Northwestern Polytechnical University |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190702 Address after: 710075 Room 11304, First Building, Unit 1, High-tech Ginza, No. 6, High-tech Road, Xi'an High-tech Zone, Shaanxi Province Patentee after: Shaanxi Tianshi Zhiyuan Aviation Technology Co., Ltd. Address before: Room 404, Material Building, Northwest Polytechnic University, 127 Youyi West Road, Xi'an City, Shaanxi Province, 710072 Patentee before: Xi'an Northwestern Polytechnical University Asset Management Co., Ltd. |