CN104180988A - Device capable of detecting motion state of ball in rolling kinematic pair - Google Patents
Device capable of detecting motion state of ball in rolling kinematic pair Download PDFInfo
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- CN104180988A CN104180988A CN201410404228.7A CN201410404228A CN104180988A CN 104180988 A CN104180988 A CN 104180988A CN 201410404228 A CN201410404228 A CN 201410404228A CN 104180988 A CN104180988 A CN 104180988A
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- ball
- guide rail
- magnetic
- magnetic switch
- raceway
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Abstract
The invention provides a device capable of detecting the motion state of a ball in a rolling kinematic pair. The device comprises a sliding block, a sliding block magnet switch ring, a non-metal sliding block raceway, the magnetic ball, a non-metal guide rail raceway, a guide rail magnet switch ring, a guide rail, a magnet switch array and ball strong magnets. The sliding block and the guide rail are matched to form the rolling kinematic pair. In the rolling kinematic pair, the sliding block moves in a linear mode along the guide rail through balls. The magnetic ball and the other balls roll between the non-metal guide rail raceway and the non-metal guide rail raceway. When the magnetic ball rolls in the rolling kinematic pair, part of strong magnetism passes through different magnetic switches, and a detection system can judge the path of the magnetic ball according to the sequence of switching signals emitted by a magnetic sleeve and coordinates of the magnet switches. The device is simple in structure, easy to manufacture and capable of effectively detecting the motion conditions of the magnetic ball, thereby simulating the actual structure and stress relation of the rolling kinematic pair in a real sense.
Description
Technical field
The present invention relates to a kind of device that can detect ball moving state in rolling movement pair, belong to detection technique field.
Background technology
Rolling movement pair is the main function components of NC machine tool feed system, and its precision and performance have determined the precision of NC machine tool feed system.In order to ensure the transmission accuracy of rolling movement pair, generally all adopt prefastening rolling movement pair.After secondary real work a period of time of rolling movement, moving component rubbing wear meeting causes pretightning force to be lost, the secondary precision of rolling movement is degenerated, the precision degenerative process of analyzing rolling movement pair is extremely important, and wearing and tearing are one of the main reasons that precision is degenerated, know the abrasion mechanism of ball and guide rail, just must know the motion state of ball in guide rail, due to the asymmetry of mechanism, the variation of contact angle and pretightning force, the forms of motion of ball in guide rail is very complicated, and ball has different forms of motion under different loading environments, and spherical guide is the space of a sealing, we cannot observe directly the running status of ball, bring very large difficulty so just to the precision degeneration of analyzing rolling movement pair.The present invention is designed to surface by the some balls in rolling movement pair and is a bit with magnetic ball.Uniform magnetic switch is set in the track of guide rail, and the position of magnetic switch is fixed, and each magnetic switch can detect and send a switching signal, and the switching signal of detection is sent in the time being with magnetic ball to approach.Can determine the motion state of ball at raceway by the analysis of computing machine.The present invention can detect the concrete motion state of ball, and then provides foundation for analyzing the abrasion mechanism of spherical guide.
Summary of the invention
The object of the invention is to analyze concrete forms of motion and the rule of rolling movement pair ball in operational process.
For achieving the above object, the technical solution adopted in the present invention is a kind of device that can detect ball moving state in rolling movement pair, and this device comprises slide block, slide block magnetic switch ring, nonmetal slide block raceway, carrying magnetic ball, nonmetal guide rail raceway, guide rail magnetic switch ring, guide rail, magnetic switch array, ball kicker magnet.
Slide block, slide block magnetic switch ring, nonmetal slide block raceway, be connected and fixed connection by key or pin between three, between three, do not relatively move; Between nonmetal guide rail raceway, guide rail magnetic switch ring, guide rail three, also connect and be connected by key or pin, between three, not relatively moving; Described slide block, the guide rail composition rolling movement pair that matches, in rolling movement pair, slide block by ball along guide rail rectilinear motion; Carrying magnetic ball and other balls roll between nonmetal slide block raceway and nonmetal guide rail raceway; Described magnetic switch array is distributed on guide rail magnetic switch ring and slide block magnetic switch ring inside, and wherein, each magnetic switch is independent; Ball kicker magnet is installed in carrying magnetic ball.
Compared with prior art, the present invention has following beneficial effect.
1, apparatus of the present invention can detect the definite forms of motion of ball between the secondary raceway of rolling movement, can only be the forms of motion of prediction, conjecture ball before this invention.
2, apparatus of the present invention adopt cheap magnetic switch, simple in structure, be easy to manufacture, and can effectively detect the motion conditions of ball, real simulation practical structures and the stressed relation of rolling pair, filled up the blank of ball moving the unknown.
3, raceway rings is made relative complex, but under the support of large scale integrated circuit, can realize completely, the density of magnetic switch array is determining to detect the precision in path, the closeer precision of array is higher, and the density of magnetic switch array will match with the magnetic field space scope of strong magnetic ball.
Brief description of the drawings
Fig. 1 is the rolling movement auxiliary structure schematic cross-section of apparatus of the present invention.
Fig. 2 is the structural representation in slide block device of the present invention cross section.
Fig. 3 is the structural representation in track-type facilities of the present invention cross section.
Fig. 4 is the structural representation in guide rail of the present invention and slide block assembling cross section.
Fig. 5 is the structural representation of guide rail of the present invention and slide block assembling and ball position.
The schematic diagram of Fig. 6 magnetic switch ring of the present invention and magnetic switch array.
Fig. 7 magnetic ball of the present invention front view.
Fig. 8 magnetic ball of the present invention vertical view.
Fig. 9 detection system schematic diagram of the present invention.
A kind of possible ball moving curve map of Figure 10 apparatus of the present invention.
In figure: 1, slide block, 2, slide block magnetic switch ring, 3, nonmetal slide block raceway, 4, carrying magnetic ball, 5, nonmetal guide rail raceway, 6, guide rail magnetic switch ring, 7, guide rail, 8, magnetic switch array, 9, ball kicker magnet.
Embodiment
As shown in Fig. 1-8, can detect a device for ball moving state in rolling movement pair, this device comprises slide block 1, slide block magnetic switch ring 2, nonmetal slide block raceway 3, carrying magnetic ball 4, nonmetal guide rail raceway 5, guide rail magnetic switch ring 6, guide rail 7, magnetic switch array 8, ball kicker magnet 9.
Slide block 1, slide block magnetic switch ring 2, nonmetal slide block raceway 3, be connected and fixed connection by key or pin between three, between three, do not relatively move; Between nonmetal guide rail raceway 5, guide rail magnetic switch ring 6, guide rail 7 threes, also connect and be connected by key or pin, between three, not relatively moving; Described slide block 1, the guide rail 7 composition rolling movement pair that matches, in rolling movement pair, slide block 1 by ball along guide rail 7 rectilinear motions; Carrying magnetic ball 4 and other balls roll between nonmetal slide block raceway 3 and nonmetal guide rail raceway 5; Described magnetic switch array 8 is distributed on guide rail magnetic switch ring 6 and slide block magnetic switch ring 2 inside, and wherein, each magnetic switch is independent; Ball kicker magnet 9 is installed in carrying magnetic ball 4.
When carrying magnetic ball 4 rolls in rolling movement pair, a part for strong magnetic can be passed by respectively different magnetic switchs, the priority of the switching signal that detection system is sent by magnetic sleeve and the coordinate of magnetic switch, can judge the path of magnetic ball, by computing machine processing can obtain sometime section, the forms of motion of a certain operating mode magnetic ball.In addition, this device can apply certain load in three directions, simulates rolling movement pair under actual condition, the moving situation of ball.
In order to reduce metal raceway to the slackening of the strong magnetic of ball, nonmetal slide block raceway 3, the nonmetal guide rail raceway 5 of both sides adopt non-magnetic material, as pottery or high rigidity engineering plastics or nonmagnetic substance.
The magnetic switch sensitivity of described magnetic switch array 8 needs suitably to adjust, magnetic switch action when carrying magnetic ball has the part of strong magnetic to approach, and a nonmagnetic side joint when near magnetic switch be failure to actuate.
As shown in Figure 9, the signal that described detection system detects guide rail and magnetic switch by data acquisition processing system is input in computing machine, can obtain curve result.
Be a kind of possible ball moving curve map of apparatus of the present invention as shown in figure 10.
Claims (5)
1. the device that can detect ball moving state in rolling movement pair, is characterized in that: this device comprises slide block (1), slide block magnetic switch ring (2), nonmetal slide block raceway (3), carrying magnetic ball (4), nonmetal guide rail raceway (5), guide rail magnetic switch ring (6), guide rail (7), magnetic switch array (8), ball kicker magnet (9);
Slide block (1), slide block magnetic switch ring (2), nonmetal slide block raceway (3), be connected and fixed connection by key or pin between three, between three, do not relatively move; Between nonmetal guide rail raceway (5), guide rail magnetic switch ring (6), guide rail (7) three, also connect and be connected by key or pin, between three, not relatively moving; Described slide block (1), guide rail (7) the composition rolling movement pair that matches, in rolling movement pair, slide block (1) by ball along guide rail (7) rectilinear motion; Carrying magnetic ball (4) and other balls roll between nonmetal slide block raceway (3) and nonmetal guide rail raceway (5); Described magnetic switch array (8) is distributed on guide rail magnetic switch ring (6) and slide block magnetic switch ring (2) inside, and wherein, each magnetic switch is independent; Ball kicker magnet (9) is installed in carrying magnetic ball (4).
2. a kind of device that can detect ball moving state in rolling movement pair according to claim 1, it is characterized in that: when carrying magnetic ball (4) rolls in rolling movement pair, a part for strong magnetic can be passed by respectively different magnetic switchs, the priority of the switching signal that detection system is sent by magnetic sleeve and the coordinate of magnetic switch, can judge the path of magnetic ball, by computing machine processing can obtain sometime section, the forms of motion of a certain operating mode magnetic ball; In addition, this device can apply certain load in three directions, simulates rolling movement pair under actual condition, the moving situation of ball.
3. a kind of device that can detect ball moving state in rolling movement pair according to claim 1, it is characterized in that: in order to reduce metal raceway slackening the strong magnetic of ball, nonmetal slide block raceway (3), the nonmetal guide rail raceway (5) of both sides adopt non-magnetic material, as pottery or high rigidity engineering plastics or nonmagnetic substance.
4. a kind of device that can detect ball moving state in rolling movement pair according to claim 1, it is characterized in that: the magnetic switch sensitivity needs of described magnetic switch array (8) are suitably adjusted, magnetic switch action when carrying magnetic ball has the part of strong magnetic to approach, and a nonmagnetic side joint when near magnetic switch be failure to actuate.
5. a kind of device that can detect ball moving state in rolling movement pair according to claim 1, it is characterized in that: the signal that described detection system detects guide rail and magnetic switch by data acquisition processing system is input in computing machine, can obtain curve result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410404228.7A CN104180988B (en) | 2014-08-15 | 2014-08-15 | A kind of can detect the device of ball moving state in rolling movement pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410404228.7A CN104180988B (en) | 2014-08-15 | 2014-08-15 | A kind of can detect the device of ball moving state in rolling movement pair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104180988A true CN104180988A (en) | 2014-12-03 |
| CN104180988B CN104180988B (en) | 2016-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410404228.7A Expired - Fee Related CN104180988B (en) | 2014-08-15 | 2014-08-15 | A kind of can detect the device of ball moving state in rolling movement pair |
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| Country | Link |
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| CN (1) | CN104180988B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110108484A (en) * | 2019-05-23 | 2019-08-09 | 内蒙古科技大学 | A kind of device and its detection method detecting ball-screw rolling pair motion state |
| CN110132583A (en) * | 2019-05-23 | 2019-08-16 | 内蒙古科技大学 | A kind of linear rolling guide rolling pair motion state detection device and its detection method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2530254Y (en) * | 2002-04-01 | 2003-01-08 | 李多民 | Magnetic drive running state monitor |
| JP2008025995A (en) * | 2006-07-18 | 2008-02-07 | Ntn Corp | Ball behavior measuring device of uniform-velocity universal joint |
| CN103822784A (en) * | 2014-02-26 | 2014-05-28 | 北京工业大学 | Method and device for testing accelerated degradation of friction moment of ball screw pair |
| CN203665221U (en) * | 2014-01-21 | 2014-06-25 | 博世力士乐（常州）有限公司 | Detection system for detecting failure of guide rail mechanism, and corresponding guide rail mechanism and machine tool |
-
2014
- 2014-08-15 CN CN201410404228.7A patent/CN104180988B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2530254Y (en) * | 2002-04-01 | 2003-01-08 | 李多民 | Magnetic drive running state monitor |
| JP2008025995A (en) * | 2006-07-18 | 2008-02-07 | Ntn Corp | Ball behavior measuring device of uniform-velocity universal joint |
| CN203665221U (en) * | 2014-01-21 | 2014-06-25 | 博世力士乐（常州）有限公司 | Detection system for detecting failure of guide rail mechanism, and corresponding guide rail mechanism and machine tool |
| CN103822784A (en) * | 2014-02-26 | 2014-05-28 | 北京工业大学 | Method and device for testing accelerated degradation of friction moment of ball screw pair |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110108484A (en) * | 2019-05-23 | 2019-08-09 | 内蒙古科技大学 | A kind of device and its detection method detecting ball-screw rolling pair motion state |
| CN110132583A (en) * | 2019-05-23 | 2019-08-16 | 内蒙古科技大学 | A kind of linear rolling guide rolling pair motion state detection device and its detection method |
| CN110108484B (en) * | 2019-05-23 | 2021-01-29 | 内蒙古科技大学 | Device and method for detecting motion state of ball screw rolling pair |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104180988B (en) | 2016-06-22 |
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