CN202382939U - Dynamic detection system of transmission errors of rotating shaft - Google Patents
Dynamic detection system of transmission errors of rotating shaft Download PDFInfo
- Publication number
- CN202382939U CN202382939U CN 201120562758 CN201120562758U CN202382939U CN 202382939 U CN202382939 U CN 202382939U CN 201120562758 CN201120562758 CN 201120562758 CN 201120562758 U CN201120562758 U CN 201120562758U CN 202382939 U CN202382939 U CN 202382939U
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- angular encoder
- turning axle
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Abstract
The utility model discloses a dynamic detection system of transmission errors of a rotating shaft. The system comprises a first angle encoder, a second angle encoder, a transmission connector and a detected signal processor, wherein the first angle encoder and the second angle encoder are respectively mounted on a transmission node or a terminal to be detected through the transmission connector; the first angle encoder and the second angle encoder respectively and synchronously output a rotating angle equivalent pulse signal; and then, the rotating angle equivalent pulse signal is input into the detected signal processor and is compared with a transmission ratio theoretical value to generate and output an error detection curve. The dynamic detection system of the transmission errors of the rotating shaft disclosed by the utility model can detect the transmission errors of the dividing movement of the node or the terminal on a transmission chain; the system has high precision and good anti-interference performance; a pulse equivalent is taken as an error detection unit, the minimum measuring step is 0.00025 degrees, and the precision of the detection system is +/-5 seconds of arc; a rotary starting point can be set and the repeated precision of N times of rotary transmission is detected; and the whole machine has a beautiful and firm structure and is convenient for operation, and is convenient to carry.
Description
Technical field
The utility model relates to a kind of mechanical system turning axle Transmission Error Measuring system, particularly a kind of turning axle driving error dynamic detection system.
Background technology
Mechanical rotation through-drive error is meant in the turning axle transmission process, when input shaft drives entirely accurate and is under the condition of rigidity, and the actual angle displacement of its output shaft and point of theory displacement poor.Realize that on mechanical hook-up workpiece processing need keep meeting the transmission to the compound motion of provisioning request, the transmission accuracy of turning axle is meant that it transmits the order of accuarcy of angle displacement, and available driving error is weighed.Because mechanical motion physical presence driving error, cause workpiece to have error with the corresponding movement locus of cutter, finally be reflected to and promptly cause mismachining tolerance on the workpiece to be machined.
Measurement to the mechanical drive error is the prerequisite that driving error is effectively compensated, so the precision measurement of turning axle driving error is an important subject of turning axle drive technology always.The fundamental method of measurement of lathe turning axle driving error is the region of interest sensor installation at lathe; Surveying instrument and application error evaluation theory by means of employing machine, light, electric principle are measured, are analyzed and adjust the error of each link of lathe turning axle kinematic train, thus reason and Changing Pattern that error identifying produces.
Therefore need a kind of complete machine structure firm, easy to operate and portable mechanical rotation through-drive error dynamics detection system attractive in appearance.
The utility model content
In view of this, the utility model technical matters to be solved provides a kind of complete machine structure firm, easy to operate and portable turning axle driving error dynamic detection system attractive in appearance.
The utility model is realized through following technical scheme:
The turning axle driving error dynamic detection system that the utility model provides; Comprise first angular encoder, second angular encoder, device and detection signal processor are in transmission connection; Said first angular encoder, second angular encoder are installed on the turning axle transmission node or terminal that needs to detect through the said device that is in transmission connection respectively; Said first angular encoder, second angular encoder are exported anglec of rotation equivalent pulse signal respectively synchronously; Said anglec of rotation equivalent pulse signal is input to detection signal processor, and said detection signal processor compares generation and output error detection curve with anglec of rotation equivalent pulse signal and ratio of gear theoretical value.
Further, also comprise the high speed optoelectronic division board, said high speed optoelectronic division board is arranged between first, second angular encoder and the detection signal processor;
Further, also comprise the pulse collection counter, said pulse collection counter is arranged between high speed optoelectronic division board and the detection signal processor;
Further, also comprise the LCD that is used to show testing result, said LCD is connected with detection signal processor;
Further, said detection signal processor is the FPGA circuit;
Further, said angular encoder is a Heidenhain increment type TTL square-wave pulse scrambler;
Further, the said device that is in transmission connection is the special-purpose diaphragm type connector of Heidenhain.
The beneficial effect of the utility model is: the turning axle driving error dynamic detection system that the utility model provides; Can detect node or terminal calibration driving error on the turning axle driving-chain; This system accuracy is high, good interference free performance is arranged; Error detecting unit is in pulse equivalency, and minimum measurement step pitch is 0.00025 °, detection system precision: ± 5 rads; And the revolution starting point can be set, detect revolution transmission repeatable accuracy N time, complete machine structure is attractive in appearance firm, and is easy to operate, is easy to carry.
Other advantages, target and the characteristic of the utility model will be set forth in instructions subsequently to a certain extent; And to a certain extent; Based on being conspicuous to those skilled in the art, perhaps can from the practice of the utility model, obtain instruction to investigating of hereinafter.The target of the utility model and other advantages can realize and obtain through following instructions and claims.
Description of drawings
For the purpose, technical scheme and the advantage that make the utility model is clearer, will combine accompanying drawing that the utility model is done further to describe in detail below, wherein:
The turning axle driving error dynamic detection system structural drawing that Fig. 1 provides for the utility model embodiment;
Fig. 2 is the acquired signal oscillogram;
Fig. 3 is the detection curve synoptic diagram.
Embodiment
Below will be with reference to accompanying drawing, the preferred embodiment of the utility model is carried out detailed description.Should be appreciated that preferred embodiment has been merely explanation the utility model, rather than in order to limit the protection domain of the utility model.
The turning axle driving error dynamic detection system structural drawing that Fig. 1 provides for the utility model embodiment; As shown in the figure: the turning axle driving error dynamic detection system that the utility model provides; Comprise first angular encoder 1 (i.e. figure in angular encoder I), second angular encoder 2 (i.e. angular encoder II among the figure), the device 3 that is in transmission connection, detection signal processor 4, high speed optoelectronic division board 5 (the high speed optoelectronic isolating interface among Fig. 1), pulse collection counter 6 and be used to show the LCD 7 of testing result; Said first angular encoder 1, second angular encoder 2 are installed on the transmission node or terminal that needs to detect through the said device 3 that is in transmission connection respectively; Said first angular encoder 1, second angular encoder 2 be output anglec of rotation equivalent pulse signal synchronously respectively; Said anglec of rotation equivalent pulse signal is input to detection signal processor 4, and said detection signal processor 4 compares generation and output angle displacement error detection curve with anglec of rotation equivalent pulse signal and ratio of gear theoretical value.
Said high speed optoelectronic division board is arranged between first, second angular encoder and the detection signal processor.Said pulse collection counter 6 is arranged between high speed optoelectronic division board and the detection signal processor.Detection signal can be provided with and with the history parameters data storage of detection supplemental characteristic with reference to the DISCHARGE PULSES EXTRACTION unit through the electronic gear ratio configuration/benchmark that is provided with.And can when detecting again each time, upgrade count pulse through the counting refresh pulse unit that is provided with, said LCD 7 is connected with detection signal processor 4.Said detection signal processor is the FPGA circuit.Said angular encoder is a Heidenhain increment type TTL square-wave pulse scrambler.The said device that is in transmission connection is the special-purpose diaphragm type connector of Heidenhain.
Specify the use of the turning axle driving error dynamic detection system that the utility model embodiment provides below:
Must 2 angular encoders be installed on the turning axle transmission node or terminal that needs to detect with the device that is in transmission connection respectively during detection; Equipment to be checked turns round; Drive the angular encoder rotation through the device that is in transmission connection, angular encoder is exported the pulse of anglec of rotation equivalent synchronously.Detection system is gathered 2 road angle pulse signals simultaneously, and very fast one road angle pulse signal of its medium speed is as pulse collection counter signals source; As the collection period trigger, each cycle pulse count device zero clearing of trigger pip refreshes once with slower one road signal of its medium velocity.Its ultimate principle is: on node of driving-chain or terminal, with equivalent corner cycle ω the segmentation continuous acquisition is carried out in the anglec of rotation pulse at another node or terminal, it is as shown in Figure 2 to gather waveform, and Fig. 2 is the acquired signal oscillogram.
Detection system compares each cycle acquisition pulse amount and ratio of gear theoretical value, and error amount is added up in each collection period pointwise, constitutes detection curve.Fig. 3 is the detection curve synoptic diagram that generates according to acquisition pulse, and T is a low speed end swing circle.Detection system is carried out the error analysis diagnosis according to the driving-chain constitutive characteristic to detection curve, makes source of error or error position and judges.
Detect initial initial point because detection system is provided with,, relatively judge the repeatable accuracy of gear train so can pass through repeatedly the detection curve that swing circle T gathers.
The high-speed light division board is for security that guarantees angular encoder work and level conversion needs, because pulse signal frequency is higher, the acquisition pulse signal will reach megahertz, so must adopt the high frequency light coupling element can satisfy the high-speed response requirement.The high-speed light division board also has the effect of considering burr removal and square wave shaping concurrently.
The device that is in transmission connection that the utility model provides is a flexible clutch, is used for turning axle driving-chain detection node or terminal and is connected with the transmission shaft of scrambler, selects the special-purpose diaphragm type connector of Heidenhain for use.The shaft coupling parameter is chosen by coder shaft/hole dimension and concrete mounting means.Adopt angular encoder to gather the driving-chain motor message, accomplish turning axle driving error dynamic acquisition, precision index and resolution satisfy test request.Detection and Extraction step angle pulse equivalency minimum is 0.00025 °.Complete machine structure is attractive in appearance firm, and is easy to operate, is easy to carry.
Explanation is at last; Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although the preferred embodiment through with reference to the utility model is described the utility model; But those of ordinary skill in the art should be appreciated that and can make various changes to it in form with on the details, and the spirit and the scope of the utility model that does not depart from appended claims and limited.
Claims (7)
1. turning axle driving error dynamic detection system is characterized in that: comprise first angular encoder, second angular encoder, device and detection signal processor are in transmission connection;
Said first angular encoder, second angular encoder are installed on the transmission node or terminal that needs to detect through the said device that is in transmission connection respectively; Said first angular encoder, second angular encoder are exported anglec of rotation equivalent pulse signal respectively synchronously; Said anglec of rotation equivalent pulse signal is input to detection signal processor, and said detection signal processor compares generation and output error detection curve with anglec of rotation equivalent pulse signal and ratio of gear theoretical value.
2. turning axle driving error dynamic detection system according to claim 1 is characterized in that: also comprise the high speed optoelectronic division board, said high speed optoelectronic division board is arranged between first, second angular encoder and the detection signal processor.
3. turning axle driving error dynamic detection system according to claim 2 is characterized in that: also comprise the pulse collection counter, said pulse collection counter is arranged between high speed optoelectronic division board and the detection signal processor.
4. turning axle driving error dynamic detection system according to claim 3 is characterized in that: also comprise the LCD that is used to show testing result, said LCD is connected with detection signal processor.
5. turning axle driving error dynamic detection system according to claim 4 is characterized in that: said detection signal processor is the FPGA circuit.
6. turning axle driving error dynamic detection system according to claim 5 is characterized in that: said angular encoder is a Heidenhain increment type TTL square-wave pulse scrambler.
7. turning axle driving error dynamic detection system according to claim 6 is characterized in that: the said device that is in transmission connection is the special-purpose diaphragm type connector of Heidenhain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120562758 CN202382939U (en) | 2011-12-29 | 2011-12-29 | Dynamic detection system of transmission errors of rotating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120562758 CN202382939U (en) | 2011-12-29 | 2011-12-29 | Dynamic detection system of transmission errors of rotating shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202382939U true CN202382939U (en) | 2012-08-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120562758 Expired - Lifetime CN202382939U (en) | 2011-12-29 | 2011-12-29 | Dynamic detection system of transmission errors of rotating shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202382939U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502074A (en) * | 2014-12-01 | 2015-04-08 | 平高集团有限公司 | Method and system for monitoring and evaluating the mechanical state of intelligent high-voltage switching device |
| CN104535306A (en) * | 2014-12-01 | 2015-04-22 | 平高集团有限公司 | Monitoring system of mechanical state of intelligent high-voltage switchgear equipment |
| CN105527097A (en) * | 2016-01-15 | 2016-04-27 | 重庆机床(集团)有限责任公司 | Rotation speed motion feature detector |
| CN108414224A (en) * | 2018-06-05 | 2018-08-17 | 上海仪沃智能科技有限公司 | A kind of real-time detection apparatus and method for electric operator mechanical wear |
-
2011
- 2011-12-29 CN CN 201120562758 patent/CN202382939U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502074A (en) * | 2014-12-01 | 2015-04-08 | 平高集团有限公司 | Method and system for monitoring and evaluating the mechanical state of intelligent high-voltage switching device |
| CN104535306A (en) * | 2014-12-01 | 2015-04-22 | 平高集团有限公司 | Monitoring system of mechanical state of intelligent high-voltage switchgear equipment |
| CN105527097A (en) * | 2016-01-15 | 2016-04-27 | 重庆机床(集团)有限责任公司 | Rotation speed motion feature detector |
| CN108414224A (en) * | 2018-06-05 | 2018-08-17 | 上海仪沃智能科技有限公司 | A kind of real-time detection apparatus and method for electric operator mechanical wear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120815 |