CN102564385A - Device for detecting internal circulation nut of ball screw assembly - Google Patents
Device for detecting internal circulation nut of ball screw assembly Download PDFInfo
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- CN102564385A CN102564385A CN2011104339603A CN201110433960A CN102564385A CN 102564385 A CN102564385 A CN 102564385A CN 2011104339603 A CN2011104339603 A CN 2011104339603A CN 201110433960 A CN201110433960 A CN 201110433960A CN 102564385 A CN102564385 A CN 102564385A
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Abstract
The invention discloses a device for detecting an internal circulation nut of a ball screw assembly. The device mainly comprises a horizontal base, a bracket which is arranged in the middle of the base, and a measuring mechanism and a pressing mechanism which are arranged at the two ends of the base respectively, wherein the measuring mechanism consists of a measuring bracket, a moving seat which can be adjusted up and down on the measuring bracket and a measuring instrument which is horizontally arranged on the moving seat and can be shifted right and left; the pressing mechanism comprises a pressing bracket which can be turned over on the front surface and a transverse ejector rod arranged on the pressing bracket; a vertical positioning head is arranged at the central position of the upper part of the bracket; and the axes of the measuring rod, the transverse ejector rod, the positioning head and the tested nut are positioned on the same vertical plane. The device has a simple structure and a high measuring speed, is easy and convenient to operate, can make the nut measured only by one person, is accurate in measurement, has an error which is less than 0.02mm, and can be simultaneously matched with a plurality of thread grinders to detect the internal circulation nut.
Description
Technical field
The invention belongs to a kind of pick-up unit of component of machine; What relate to is circulation nut pick-up unit in a kind of ball screw assembly,, the pick-up unit of the back device mounting hole center both sides complete raceway center symmetry adjacent with this center on the circulation nut in particularly a kind of ball screw assembly.
Background technology
Ball screw assembly, is one of core component of numerically-controlled machine, and interior circulating ball lead screw pair is to use the most extensively, uses most economically, makes the comparatively simple a kind of ball screw assembly, of link.
The quality good or not of interior circulating ball lead screw pair not only depends on the pitch error of leading screw and nut, the error of raceway shape; And depend on the symmetry at the complete raceway center, both sides that back device mounting hole center on the nut is adjacent with this center; Because the back device is installed on two adjacent raceways of nut and is connecting two adjacent raceways of ball screw assembly; Rely on the S shape opposing slot revolution back on the back device, the ball in the lead screw pair forms circulating rolling in two adjacent raceways.In whole inner cyclic process; Ball rolls with the raceway face of leading screw and nut all the time through S shape opposing slot on the back device and contacts; On the back device S shape opposing slot and nut rolling way seamlessly transit very crucially, it directly affects ball serviceable life to fluency, dirigibility, rotation smoothness, compliance and the noise and the ball screw assembly, of the impulsive force of raceway, ball operation in the back operational process.Improve the symmetry at back device mounting hole center and complete raceway center, adjacent both sides, just can guarantee that S shape opposing slot accurately docks with nut rolling way on the back device, make that S shape opposing slot and nut rolling way seamlessly transit on the back device.Therefore, the symmetry that improves the both sides complete raceway center adjacent with this center, back device mounting hole center is an important step of raising ball-screw manufacturing accuracy.Yet; For a long time; Owing to there not be the pick-up unit of being correlated with, whether qualified for the symmetry at the both sides complete raceway center adjacent with this center, back device mounting hole center is to judge with workman's processing experience always, does not have concrete detection data; Its result makes the quality of product unstable, often differs bigger with designing requirement.
Summary of the invention
The objective of the invention is to propose circulation nut pick-up unit in a kind of ball screw assembly; Accurately measure the symmetry at the both sides complete raceway center adjacent, back device mounting hole center on the nut with this center through this device; Instruct for following process provides accurate data, help producing specification product.
The technical scheme that realizes above-mentioned purpose is: circulation nut pick-up unit in a kind of ball screw assembly; The main carriage that is installed in the measuring mechanism and the jacking mechanism at base two ends and is positioned at the base centre position by the base of horizontality, is respectively formed; Mobile seat that said measuring mechanism is regulated by liftable on measurement bracket, the measurement bracket and level are installed in and move that seat is gone up and but the measuring instrument of left and right displacement is formed, the termination of the sounding rod measuring head that to be vertically installed with a termination be steel ball on the measuring instrument; Said jacking mechanism comprise can positive upset hold out against support, be installed in the horizontal push rod that holds out against on the support; There is a vertical positioning head central upper portion position of said carriage; The axis of said sounding rod, horizontal push rod, positioning head and tested nut is in together on the vertical plane.
The top of said base, one section of installation bracket and jacking mechanism is " V " font grooved slide rail, and respectively there is the T-slot of one symmetry the both sides of grooved slide rail, and the bottom surface of carriage and this grooved slide rail are slidingly matched and fix through the T-slot of both sides.
In the said measuring mechanism, measurement bracket is made up of two parallel vertical shafts, and the plane of two vertical shaft formation is vertical with said sounding rod; All be set with stage clip on two vertical shafts, be positioned on the vertical shaft of stage clip upper end and be set with linear bearing, said mobile seat is installed on the measurement bracket through two linear bearings; The upper end of moving seat is fixed with a pressure-raising bar, and this pressure-raising bar is used to drive mobile seat and moves up and down, and there is a cross through hole centre of moving seat; Orienting sleeve is housed in the through hole; The sounding rod of measuring instrument is sleeved in the orienting sleeve, and there is a coaming plate measurement bracket outside, and the indicator gauge of measuring instrument is positioned at outside the coaming plate.
Said one side that holds out against frame bottom is hinged with the corresponding sides of base, can positive upset nearly 90 °, and hold out against support top a horizontal sliding sleeve is housed, laterally push rod is installed in this sliding sleeve.
Said carriage is made up of a master carrier and a secondary carriage, and major and minor two carriages are supporting, parallel, at interval, and positioning head is installed on the master carrier.
When internally the circulation nut detects; Earlier tested nut is placed on the carriage, makes the right side of positioning head, it is held out against from tested nut outer end through push rod again near tested nut back device hole; Then sounding rod is put in the tested nut; Seat and measuring instrument are moved in adjustment, make the steel ball on the measuring head just in time drop on the complete raceway bottom that is close to the back device left side, the numerical value of reading displayed table; With 180 ° of tested nut switching-overs, repeat above-mentioned location and measurement, the numerical value on the secondary reading displayed table.The difference of twice reading is the symmetry at complete raceway center, adjacent both sides with this center, nut back device mounting hole center.
During measurement, can change major and minor two carriages and positioning head, also can change measuring head, so just can measure endoporus circulation nut in φ 20～φ 200 whole according to the size of nut rolling way according to the size and the length of tested nut.
Pick-up unit simple structure of the present invention, easy and simple to handle, a people can accomplish measuring operation; Measuring speed is fast, and nut of every measurement only needs 1～2 minute, and measures accurately; Error only in 0.02mm, can cooperate many thread grinders to carry out the detection of interior circulation nut simultaneously.
Description of drawings
Fig. 1 is a ball nut inner circulation structure synoptic diagram.
Fig. 2 is that the integral shaft of one embodiment of the invention is to cut-open view.
Fig. 3 is the right view of Fig. 2.
Fig. 4 is the vertical view of Fig. 2.
Fig. 5 is that the A-A of Fig. 4 analyses and observe rotation diagram.
Fig. 6 is the B-B cut-open view of Fig. 4.
Among the figure: 1. base, 2. master carrier, 3. positioning head, 4. secondary carriage, 5. vertical shaft, 6. stage clip; 7. linear bearing, 8. coaming plate 9. moves seat, 10. pressure-raising bar, 11. orienting sleeves, 12. sounding rods; 13. measure pole, 14. steel balls, 15. indicator gauges, 16. hold out against support, 161. base plates; 17. bearing pin, 18. tie down screws, 19. sliding sleeves, 20. push rods, 21. tested nuts.
Embodiment
Below in conjunction with accompanying drawing the present invention is described further.
Extremely shown in Figure 6 like Fig. 2, circulation nut pick-up unit in the ball screw assembly, of the present invention, main base 1, the carriage composition that is installed in the measuring mechanism of base 1 left end and is installed in the jacking mechanism of base 1 right-hand member and is positioned at base 1 centre position.There is a vertical positioning head 3 the central upper portion position of carriage; Base 1 is in horizontality, and one section of its upper mounting bracket and jacking mechanism is " V " font grooved slide rail, and respectively there is the T-slot of one symmetry the both sides of grooved slide rail, the bottom surface of carriage and this grooved slide rail be slidingly matched (as shown in Figure 6); Mobile seat 9 that measuring mechanism is regulated by liftable on measurement bracket, the measurement bracket and level are installed in and move on the seat 9 and but the measuring instrument of left and right displacement is formed, and the termination of sounding rod 12 is equipped with a perpendicular measurement pole 13 on the measuring instrument, and measurement pole 13 is measuring head; Measure pole 13 terminations and be fixed with a steel ball 14 (as shown in Figure 2); Measurement bracket is made up of two parallel vertical shafts 5, and the plane of two vertical shaft 5 formation is vertical with sounding rod 12, respectively is set with a stage clip 6 on two vertical shafts 5; Be positioned on the vertical shaft 5 of stage clip 6 upper ends and be set with linear bearing 7; Move seat 9 and be installed on the measurement bracket through two linear bearings 7, be fixed with a pressure-raising bar 10 in the upper end of moving seat 9, this pressure-raising bar 10 is used to drive and moves seat 9 and move up and down; Realize moving the up-down adjusting of seat 9; There is a cross through hole centre of moving seat 9, and orienting sleeve 11 is housed in the through hole, and the sounding rod 12 of measuring instrument is sleeved in the orienting sleeve 11; There is a coaming plate 8 the measurement bracket outside, and the indicator gauge 15 of measuring instrument is positioned at the outside (like Fig. 2, Fig. 3 and shown in Figure 5) of coaming plate 8; Jacking mechanism comprise can positive upset hold out against support 16, be installed in and hold out against push rod horizontal on the support 16 20; Be fixed with a base plate 161 holding out against support 16 bottoms; This base plate passes through screw retention on the T shape groove of grooved slide rail both sides; The one side that holds out against support 16 bottoms is hinged through bearing pin 17 with the corresponding sides of base plate 161, and another side and base plate 161 are through tie down screw 18 lockings, and holding out against support 16 can be through nearly 90 ° of bearing pin 17 positive upset; A horizontal sliding sleeve 19 is equipped with on the top that holds out against support 16, and horizontal push rod 20 is installed in the sliding sleeve 19 (as shown in Figures 2 and 3); Sounding rod 12, push rod 20, positioning head 3 are in together on the vertical plane (as shown in Figures 2 and 3) with the axis of tested nut 21.
Carriage can be one or two, and in the present embodiment, carriage has two, i.e. a master carrier 2 and a secondary carriage 4, major and minor two carriages match and be parallel, at interval, and positioning head 3 is installed in (as shown in Figures 2 and 3) on the master carrier 2.
Holding out against that support 16 is designed to can positive flipped form; Be because in testing process; The placement of tested nut 21 on carriage, turn to and take off and all need certain axial space; Support 16 positive upset can be realized holding out against through bearing pin 17 and tie down screw 18, after it rotates, requisite space can be vacateed on one side of base 1.
Claims (5)
1. circulation nut pick-up unit in the ball screw assembly; It is characterized in that: the main carriage that is installed in the measuring mechanism and the jacking mechanism at base two ends and is positioned at the base centre position by the base of horizontality, is respectively formed; Mobile seat that said measuring mechanism is regulated by liftable on measurement bracket, the measurement bracket and level are installed in and move that seat is gone up and but the measuring instrument of left and right displacement is formed, the termination of the sounding rod measuring head that to be vertically installed with a termination be steel ball on the measuring instrument; Said jacking mechanism comprise can positive upset hold out against support, be installed in the horizontal push rod that holds out against on the support; There is a vertical positioning head central upper portion position of said carriage; The axis of said sounding rod, horizontal push rod, positioning head and tested nut is in together on the vertical plane.
2. according to the described pick-up unit of claim 1; It is characterized in that: the top of said base; One section of installation bracket and jacking mechanism is " V " font grooved slide rail; Respectively there is the T-slot of one symmetry the both sides of grooved slide rail, and the bottom surface of carriage and this grooved slide rail are slidingly matched and fix through the T-slot of both sides.
3. according to the described pick-up unit of claim 1, it is characterized in that: in the said measuring mechanism, measurement bracket is made up of two parallel vertical shafts; The plane that two vertical shafts form is vertical with said sounding rod, all is set with stage clip on two vertical shafts, is positioned on the vertical shaft on the stage clip to be set with linear bearing; Said mobile seat is installed on the measurement bracket through two linear bearings, and the upper end of moving seat is fixed with a pressure-raising bar, and there is a cross through hole centre of moving seat; Orienting sleeve is housed in the through hole; The sounding rod of measuring instrument is sleeved in the orienting sleeve, and there is a coaming plate measurement bracket outside, and the indicator gauge of measuring instrument is positioned at outside the coaming plate.
4. according to the described pick-up unit of claim 1, it is characterized in that: said one side that holds out against frame bottom is hinged with the corresponding sides of base, can positive upset nearly 90 °, and hold out against support top a horizontal sliding sleeve is housed, laterally push rod is installed in this sliding sleeve.
5. according to the described pick-up unit of claim 1, it is characterized in that: said carriage is made up of a master carrier and a secondary carriage, and major and minor two carriages are supporting, parallel, at interval, and positioning head is installed on the master carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110433960.3A CN102564385B (en) | 2011-12-12 | 2011-12-12 | Device for detecting internal circulation nut of ball screw assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110433960.3A CN102564385B (en) | 2011-12-12 | 2011-12-12 | Device for detecting internal circulation nut of ball screw assembly |
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| Publication Number | Publication Date |
|---|---|
| CN102564385A true CN102564385A (en) | 2012-07-11 |
| CN102564385B CN102564385B (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110433960.3A Active CN102564385B (en) | 2011-12-12 | 2011-12-12 | Device for detecting internal circulation nut of ball screw assembly |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048078A (en) * | 2013-01-21 | 2013-04-17 | 苏州通锦自动化设备有限公司 | Screw rod prepressing moving torque detection device |
| CN103438853A (en) * | 2013-08-23 | 2013-12-11 | 芜湖奕辰模具科技有限公司 | Clamp for detecting bolt |
| CN103438843A (en) * | 2013-08-26 | 2013-12-11 | 浙江吉利汽车研究院有限公司 | Reticulation measurement instrument installation frame |
| CN104259933A (en) * | 2014-09-05 | 2015-01-07 | 大连高金数控集团有限公司 | Ball nut phase measuring device and corresponding nut return device hole machining method |
| CN106969712A (en) * | 2017-02-14 | 2017-07-21 | 丽水市杰祥科技有限公司 | Screw thread drift meter |
| CN109682592A (en) * | 2019-02-22 | 2019-04-26 | 常熟理工学院 | Recycle the feed screw nut self-locking performance detection device of lead screw |
Citations (4)
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| CN101093158A (en) * | 2007-07-20 | 2007-12-26 | 上海应用技术学院 | Device of measuring internal thread |
| WO2009119713A1 (en) * | 2008-03-27 | 2009-10-01 | 住友金属工業株式会社 | Device for measuring screw element at pipe end, system for measuring screw element and method for measuring screw element |
| CN201715970U (en) * | 2010-06-09 | 2011-01-19 | 吉林省浩然正大科技有限责任公司 | Liquefied petroleum gas (LPG) cylinder valve internal thread go gauge and nogo gauge detection station |
| JP2011242300A (en) * | 2010-05-19 | 2011-12-01 | Toyota Motor Corp | Effective diameter measurement instrument of female screw |
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2011
- 2011-12-12 CN CN201110433960.3A patent/CN102564385B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101093158A (en) * | 2007-07-20 | 2007-12-26 | 上海应用技术学院 | Device of measuring internal thread |
| WO2009119713A1 (en) * | 2008-03-27 | 2009-10-01 | 住友金属工業株式会社 | Device for measuring screw element at pipe end, system for measuring screw element and method for measuring screw element |
| JP2011242300A (en) * | 2010-05-19 | 2011-12-01 | Toyota Motor Corp | Effective diameter measurement instrument of female screw |
| CN201715970U (en) * | 2010-06-09 | 2011-01-19 | 吉林省浩然正大科技有限责任公司 | Liquefied petroleum gas (LPG) cylinder valve internal thread go gauge and nogo gauge detection station |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048078A (en) * | 2013-01-21 | 2013-04-17 | 苏州通锦自动化设备有限公司 | Screw rod prepressing moving torque detection device |
| CN103048078B (en) * | 2013-01-21 | 2015-05-06 | 苏州通锦自动化设备有限公司 | Screw rod prepressing moving torque detection device |
| CN103438853A (en) * | 2013-08-23 | 2013-12-11 | 芜湖奕辰模具科技有限公司 | Clamp for detecting bolt |
| CN103438843A (en) * | 2013-08-26 | 2013-12-11 | 浙江吉利汽车研究院有限公司 | Reticulation measurement instrument installation frame |
| CN103438843B (en) * | 2013-08-26 | 2016-01-27 | 浙江吉利汽车研究院有限公司 | A kind of Reticulation measurement instrument installation frame |
| CN104259933A (en) * | 2014-09-05 | 2015-01-07 | 大连高金数控集团有限公司 | Ball nut phase measuring device and corresponding nut return device hole machining method |
| CN106969712A (en) * | 2017-02-14 | 2017-07-21 | 丽水市杰祥科技有限公司 | Screw thread drift meter |
| CN109682592A (en) * | 2019-02-22 | 2019-04-26 | 常熟理工学院 | Recycle the feed screw nut self-locking performance detection device of lead screw |
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| Publication number | Publication date |
|---|---|
| CN102564385B (en) | 2014-06-11 |
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