CN102564385B - 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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- CN102564385B CN102564385B CN201110433960.3A CN201110433960A CN102564385B CN 102564385 B CN102564385 B CN 102564385B CN 201110433960 A CN201110433960 A CN 201110433960A CN 102564385 B CN102564385 B CN 102564385B
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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
Patent of the present invention belongs to a kind of pick-up unit of component of machine, what relate to is the pick-up unit of the adjacent both sides complete raceway Central Symmetry degree in Yu Gai center, reverser mounting hole center on circulation nut in circulation nut pick-up unit, particularly a kind of ball screw assembly, in a kind of ball screw assembly.
Background technology
Ball screw assembly, is one of core component of numerically-controlled machine, and interior circular rolling ball screw pair is most widely used general, uses most economically, manufactures link comparatively simple a kind of ball screw assembly.
The quality good or not of interior circular rolling ball 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 adjacent complete raceway center, both sides, Yu Gai center, reverser mounting hole center on nut, because reverser is arranged 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 reverser, the ball in lead screw pair forms circulating rolling in two adjacent raceways.In whole inner cyclic process, ball is rolled and contacts with the raceway face of leading screw and nut all the time by S shape opposing slot on reverser, on reverser S shape opposing slot and nut rolling way seamlessly transit very crucially, it directly affects serviceable life of ball fluency, dirigibility, rotary flat stability, compliance and noise and ball screw assembly, of the operation of the impulsive force to raceway, ball in back operational process.The symmetry that improves reverser mounting hole center and complete raceway center, adjacent both sides, just can ensure that on reverser, S shape opposing slot accurately docks with nut rolling way, and S shape opposing slot and nut rolling way on reverser are seamlessly transitted.Therefore the symmetry that, improves adjacent complete raceway center, both sides, Yu Gai center, reverser mounting hole center is an important step that improves ball-screw manufacturing accuracy.But, for a long time, owing to there is no relevant pick-up unit, whether qualified for the symmetry at adjacent complete raceway center, both sides, Yu Gai center, reverser mounting hole center is to judge with workman's processing experience always, there is no concrete detection data, its result makes the quality of product unstable, often differs larger with designing requirement.
Summary of the invention
The object of the invention is to propose circulation nut pick-up unit in a kind of ball screw assembly,, accurately measure the symmetry at adjacent complete raceway center, both sides, Yu Gai center, reverser mounting hole center on nut by this device, for following process provides data-guiding accurately, be conducive to produce specification product.
The technical scheme that realizes above-mentioned purpose is: circulation nut pick-up unit in a kind of ball screw assembly,, mainly formed by the base of horizontality, the measuring mechanism that is arranged on respectively base two ends and jacking mechanism and the bracket that is positioned at base centre position, described measuring mechanism by measuring support, measure that liftable regulates on support Mobile base and level are arranged on Mobile base and measuring instrument that can left and right displacement forms, on measuring instrument, the termination of sounding rod is vertically installed with the measuring head that a termination is steel ball; Described jacking mechanism comprise can positive upset hold out against support, be arranged on the horizontal push rod holding out against on support; There is a vertical positioning head central upper portion position of described bracket; The axis of described sounding rod, horizontal push rod, positioning head and tested nut is in together on a vertical plane.
The top of described 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 bracket and this grooved slide rail are slidably matched and fix by the T-slot of both sides.
In described measuring mechanism, measuring support is made up of two parallel vertical shafts, the plane of two vertical shaft formation is vertical with described sounding rod, on two vertical shafts, be all set with stage clip, be positioned on the vertical shaft of stage clip upper end and be set with linear bearing, described Mobile base is arranged on and is measured on support by two linear bearings, the upper end of Mobile base is fixed with a pressure-raising bar, this pressure-raising bar is used for driving Mobile base to move up and down, there is a cross through hole centre of Mobile base, orienting sleeve is housed in through hole, the sounding rod of measuring instrument is sleeved in orienting sleeve, measure support outside and have a coaming plate, the indicator gauge of measuring instrument is positioned at outside coaming plate.
Describedly hold out against one side of frame bottom and the corresponding sides of base are hinged, can positive upset nearly 90 °, hold out against support top a horizontal sliding sleeve is housed, laterally push rod is arranged in this sliding sleeve.
Described bracket is made up of a master carrier and a secondary bracket, and major and minor two brackets are supporting, parallel, interval, and positioning head is arranged on master carrier.
When internally circulation nut detects, first tested nut is placed on bracket, make the right side of positioning head near tested nut reverser hole, held out against from tested nut outer end by push rod again, then sounding rod is put in tested nut, adjust Mobile base and measuring instrument, make the steel ball on measuring head just in time drop on the complete raceway bottom that is close to the reverser left side, the numerical value of reading displayed table; By 180 ° of tested nut commutations, repeat above-mentioned location and measurement, the numerical value on secondary reading displayed table.The difference of twice reading is the symmetry at complete raceway center, adjacent both sides, Yu Gai center, nut reverser mounting hole center.
When measurement, can change major and minor two brackets and positioning head according to the size of tested nut and length, also can change measuring head according to the size of nut rolling way, so just can measure endoporus circulation nut in φ 20～φ 200 whole.
Pick-up unit simple structure of the present invention, easy and simple to handle, a people can complete and measure operation, measuring speed is fast, and nut of every measurement only needs 1～2 minute, and measures accurately, error only, in 0.02mm, can coordinate many thread grinders to carry out the detection of interior circulation nut simultaneously.
Brief description of the drawings
Fig. 1 is ball nut inner circulation structure schematic 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.
In figure: 1. base, 2. master carrier, 3. positioning head, 4. secondary bracket, 5. vertical shaft, 6. stage clip, 7. linear bearing, 8. coaming plate, 9. Mobile base, 10. pressure-raising bar, 11. orienting sleeves, 12. sounding rods, 13. measure pole, 14. steel balls, and 15. indicator gauges, 16. hold out against support, 161. base plates, 17. bearing pins, 18. tie down screws, 19. sliding sleeves, 20. push rods, 21. tested nuts.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figures 2 to 6, circulation nut pick-up unit in ball screw assembly, of the present invention, main base 1, is arranged on the measuring mechanism of base 1 left end and is arranged on the jacking mechanism of base 1 right-hand member and is positioned at the bracket composition in base 1 centre position.There is a vertical positioning head 3 the central upper portion position of bracket, 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, and the bottom surface of bracket and this grooved slide rail are slidably matched (as shown in Figure 6), measuring mechanism is by measuring support, the measuring instrument composition of measuring that liftable regulates on support Mobile base 9 and level are arranged on Mobile base 9 and can left and right displacement, on measuring instrument, the termination of sounding rod 12 is provided with a perpendicular measurement pole 13, measure pole 13 and be measuring head, measure pole 13 terminations and be fixed with a steel ball 14 (as shown in Figure 2), measuring support is made up of two parallel vertical shafts 5, the plane that two vertical shafts 5 form is vertical with sounding rod 12, on two vertical shafts 5, be respectively set with a stage clip 6, be positioned on the vertical shaft 5 of stage clip 6 upper ends and be set with linear bearing 7, Mobile base 9 is arranged on and is measured on support by two linear bearings 7, be fixed with a pressure-raising bar 10 in the upper end of Mobile base 9, this pressure-raising bar 10 is for driving Mobile base 9 to move up and down, realize the lift adjustment of Mobile base 9, there is a cross through hole centre of Mobile base 9, orienting sleeve 11 is housed in through hole, the sounding rod 12 of measuring instrument is sleeved in orienting sleeve 11, measure support outside and have a coaming plate 8, the outside that the indicator gauge 15 of measuring instrument is positioned at coaming plate 8 is (as Fig. 2, shown in Fig. 3 and Fig. 5), jacking mechanism comprise can positive upset hold out against support 16, be arranged on and hold out against push rod horizontal on support 16 20, be fixed with a base plate 161 holding out against support 16 bottoms, this base plate is fixed by screws on the T-slot of grooved slide rail both sides, hold out against one side of support 16 bottoms and the corresponding sides of base plate 161 hinged by bearing pin 17, another side and base plate 161 are locked by tie down screw 18, holding out against support 16 can be by nearly 90 ° of the positive upset of bearing pin 17, a horizontal sliding sleeve 19 is equipped with on the top that holds out against support 16, horizontal push rod 20 is arranged in sliding sleeve 19 (as shown in Figures 2 and 3), sounding rod 12, push rod 20, positioning head 3 are in together on a vertical plane (as shown in Figures 2 and 3) with the axis of tested nut 21.
Bracket can be one or two, and in the present embodiment, bracket has two, i.e. a master carrier 2 and a secondary bracket 4, and major and minor two brackets match and parallel, interval, and positioning head 3 is arranged on (as shown in Figures 2 and 3) on master carrier 2.
Holding out against that support 16 is designed to can positive flipped form, because in testing process, the placement of tested nut 21 on bracket, turn to and take off and all need certain axial space, can realize and hold out against support 16 in the positive upset in one side of base 1 by bearing pin 17 and tie down screw 18, after it rotates, can vacate requisite space.
Claims (5)
1. circulation nut pick-up unit in a ball screw assembly,, it is characterized in that: mainly formed by the base of horizontality, the measuring mechanism that is arranged on respectively base two ends and jacking mechanism and the bracket that is positioned at base centre position, described measuring mechanism by measuring support, measure that liftable regulates on support Mobile base and level are arranged on Mobile base and measuring instrument that can left and right displacement forms, on measuring instrument, the termination of sounding rod is vertically installed with the measuring head that a termination is steel ball; Described jacking mechanism comprise can positive upset hold out against support, be arranged on the horizontal push rod holding out against on support; There is a vertical positioning head central upper portion position of described bracket; The axis of described sounding rod, horizontal push rod, positioning head and tested nut is in together on a vertical plane; Wherein, tested nut is placed on bracket, makes the right side of positioning head near tested nut reverser hole, makes the steel ball on measuring head just in time drop on the complete raceway bottom that is close to the reverser left side.
2. according to pick-up unit claimed in claim 1, it is characterized in that: the top of described 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 bracket and this grooved slide rail are slidably matched and fix by the T-slot of both sides.
3. according to pick-up unit claimed in claim 1, it is characterized in that: in described measuring mechanism, measuring support is made up of two parallel vertical shafts, the plane of two vertical shaft formation is vertical with described sounding rod, on two vertical shafts, be all set with stage clip, be positioned on the vertical shaft of stage clip upper end and be set with linear bearing, described Mobile base is arranged on and is measured on support by two linear bearings, the upper end of Mobile base is fixed with a pressure-raising bar, there is a cross through hole centre of Mobile base, orienting sleeve is housed in through hole, the sounding rod of measuring instrument is sleeved in orienting sleeve, measure support outside and have a coaming plate, the indicator gauge of measuring instrument is positioned at outside coaming plate.
4. according to pick-up unit claimed in claim 1, it is characterized in that: described in hold out against one side of frame bottom and the corresponding sides of base are hinged, can positive upset nearly 90 °, hold out against support top a horizontal sliding sleeve be housed, laterally push rod is arranged in this sliding sleeve.
5. according to pick-up unit claimed in claim 1, it is characterized in that: described bracket is made up of a master carrier and a secondary bracket, major and minor two brackets are supporting, parallel, interval, and positioning head is arranged on 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 |
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| CN102564385A CN102564385A (en) | 2012-07-11 |
| CN102564385B true 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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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN109682592B (en) * | 2019-02-22 | 2020-07-28 | 常熟理工学院 | Lead screw nut self-locking detection device for recycling lead screw |
Citations (2)
| 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 |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SA109300190B1 (en) * | 2008-03-27 | 2013-08-27 | Sumitomo Metal Ind | Apparatus, System, and Method for Measuring Thread Features on Pipe or Tube End |
| 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 (2)
| 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 |
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2011-242300A 2011.12.01 |
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