CN107525486B - Swing play detection device for ball screw pair - Google Patents
Swing play detection device for ball screw pair Download PDFInfo
- Publication number
- CN107525486B CN107525486B CN201710880019.3A CN201710880019A CN107525486B CN 107525486 B CN107525486 B CN 107525486B CN 201710880019 A CN201710880019 A CN 201710880019A CN 107525486 B CN107525486 B CN 107525486B
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- ball screw
- workbench
- lever
- screw rod
- placing
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- 238000001514 detection method Methods 0.000 title claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 238000003756 stirring Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/16—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring distance of clearance between spaced objects
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Transmission Devices (AREA)
Abstract
The invention provides a swing play detection device for a ball screw pair, which is convenient to operate, can rapidly detect the swing play of the ball screw pair, and has high detection precision; the automatic test pencil comprises a frame, a workbench is arranged on the frame, a through hole is formed in the workbench, a pushing cylinder is arranged at the bottom of the frame and located below the through hole, a placing mechanism for placing a ball screw pair is connected to the pushing cylinder, a screw of the ball screw pair penetrates through the workbench and a nut of the ball screw pair is clamped in the through hole, test shafts are arranged on two opposite sides of the extending end portion of the screw, the test shafts are connected with lever mechanisms and driven by loading cylinders, and test pens are arranged outside the screw corresponding to the test shafts.
Description
Technical Field
The invention relates to the technical field of ball screw pairs, in particular to a swing play detection device for a ball screw pair.
Background
The ball screw pair is a transmission element most commonly used on tool machinery and precision machinery, has the main functions of converting rotary motion into linear motion or converting torque into axial repeated acting force, has the characteristics of high precision, reversibility and high efficiency, is widely applied to various industrial equipment and precision instruments due to small friction resistance, is a very critical component for a high-precision machine tool, and can effectively improve the positioning precision of the machine tool.
The swing play of the ball screw pair, namely the difference value of the channel clearance between the screw and the screw, is one of main quality indexes when the ball screw pair is matched, so the swing play is not only a main parameter for verifying whether the finished ball screw pair is qualified after the qualified finished part is matched, but also an important factor for judging whether the ball screw pair can work normally, the standard of the existing qualified swing play value is 0.32 mm-0.7 mm, the precision, the service life and the like of the ball screw pair are affected if the play value does not accord with the technical standard, the existing method for detecting the swing play is to detect through a clearance gauge, namely a clearance gauge is plugged between the steel ball and the screw and between the screw and the inner (outer) ring of the screw, and the swing play value of the ball screw pair is obtained through the difference of the thickness values of the obtained clearance gauge.
Disclosure of Invention
In view of the above, the present invention provides a swing play detection device for a ball screw pair, which is convenient to operate, can rapidly detect the swing play of the ball screw pair, and has high detection accuracy.
The technical scheme is characterized by comprising a frame, a workbench is arranged on the frame, a through hole is formed in the workbench, a pushing cylinder is arranged at the bottom of the frame and positioned below the through hole, the pushing cylinder is connected with a placing mechanism for placing a ball screw pair, a screw rod of the ball screw pair penetrates through the workbench through the pushing cylinder and a nut clamp of the ball screw pair is arranged in the through hole, measuring shafts are respectively arranged on two opposite sides of the extending end part of the screw rod, the measuring shafts are connected with lever mechanisms and driven by loading cylinders, and a measuring pen is arranged outside the screw rod corresponding to the measuring shaft.
It is further characterized by:
a connecting plate is fixed on the side part of the frame below the workbench, a sliding rail arranged towards the workbench is arranged on the connecting plate, and the placing mechanism is slidably arranged on the sliding rail;
the placing mechanism comprises a placing block arranged on the sliding rail, the bottom of the placing block is connected with the pushing cylinder, a hollow placing table is connected to the placing block, and the bottom of the screw rod is arranged in the placing table;
the lever mechanism comprises a balancing weight, a lever and a pressure sensor, wherein the upper part of the lever is connected with the balancing weight, the lower part of the lever is connected with the pressure sensor and then is connected with one end of a measuring shaft, the other end of the measuring shaft is opposite to the outer wall of the screw rod, the middle part of the lever is connected with a fixed block and then is connected with one end of a support plate through a pin shaft, the other end of the support plate is connected with a vertical plate, the upper part of the vertical plate is connected with a loading cylinder, the lower part of the vertical plate is connected with the upper end part of the frame, the loading cylinder is positioned below the balancing weight, and a piston rod of the loading cylinder is opposite to the rod part of the lever;
the end face of the other end of the measuring shaft is an arc face corresponding to the outer wall face of the screw rod, and the measuring shafts on two sides surround the outer wall face of the screw rod through the corresponding arc faces;
the pen body of the test pen is sleeved on a fixed plate on the workbench, the pen point part of the test pen is connected with a stirring device, the stirring device comprises a seat plate fixed on the workbench, a stirring cylinder is fixed on the seat plate, a piston rod of the stirring cylinder is connected with a stirring plate, and the pen point of the test pen passes through the stirring plate to be contacted with the outer wall surface of the screw rod;
the seat board is arranged on the workbench at the lead screw, and the seat board and the toggle board are all L-shaped.
The invention has the beneficial effects that after the screw rod of the ball screw pair passes through the workbench and the screw nut and is clamped in the through hole by pushing the air cylinder, the measuring shafts at the two sides are matched with the lever mechanism and the loading air cylinder to sequentially apply loading force to the screw rod to enable the screw rod to swing left and right, and then the measuring pen sequentially measures the measured value of the swing of the screw rod, so that the swing play of the ball screw pair can be rapidly detected through the measured difference value, and the detection precision is high.
Drawings
FIG. 1 is a perspective view of the present invention;
fig. 2 is a front view of the present invention.
Detailed Description
As shown in fig. 1 and 2, the invention comprises a frame 1, a workbench 2 is arranged on the frame 1, a through hole 3 is arranged on the workbench 2, a pushing cylinder 4 is arranged at the bottom of the frame 1 below the through hole 3, the pushing cylinder 4 is connected with a placing mechanism for placing a ball screw pair, a screw 5 of the ball screw pair penetrates through the workbench 2 and a nut 6 of the ball screw pair and is clamped in the through hole 3 through the pushing cylinder 4, measuring shafts 7 are arranged on two opposite sides of the extending end part of the screw 5, the measuring shafts 7 are connected with lever mechanisms, and are driven by a loading cylinder 8, and a measuring pen 9 is arranged outside the screw 5 corresponding to the measuring shafts 7.
A connecting plate 10 is fixed on the side part of the frame 1 below the workbench 2, a sliding rail 11 arranged towards the workbench 2 is arranged on the connecting plate 10, and a placing mechanism is slidably arranged on the sliding rail 11; the placing mechanism comprises a placing block 12 arranged on the sliding rail 11, the bottom of the placing block 12 is connected with the pushing cylinder 4, the placing block 12 is connected with a hollow placing table 13, and the bottom of the screw rod 5 is arranged in the placing table 13; the lever mechanism comprises a balancing weight 14, a lever 15 and a pressure sensor 16, wherein the upper part of the lever 15 is connected with the balancing weight 14, the lower part of the lever 15 is connected with the pressure sensor 16 and then is connected with one end of a measuring shaft 7, the other end of the measuring shaft 7 is opposite to the outer wall of a screw rod 5, the middle part of the lever 15 is connected with one end of a support plate 19 through a pin shaft 18 after being connected with a fixed block 17, the other end of the support plate 19 is connected with a vertical plate 20, the upper part of the vertical plate 20 is connected with a loading cylinder 8, the lower part of the vertical plate 20 is connected with the upper end of a frame 1, the loading cylinder 8 is positioned below the balancing weight 14, and a piston rod of the loading cylinder is opposite to the rod part of the lever 15; the end face of the other end of the measuring shaft 7 is an arc face corresponding to the outer wall face of the screw rod 5, and the measuring shafts 7 on two sides encircle the outer wall face of the screw rod 5 through the corresponding arc faces; the pen body of the test pen 9 is sleeved on a fixed plate 21 on the workbench 2, the pen point part of the test pen 9 is connected with a poking device, the poking device comprises a seat plate 22 fixed on the workbench 2, a poking cylinder 23 is fixed on the seat plate 22, a piston rod of the poking cylinder 23 is connected with a poking plate 24, and the pen point of the test pen 9 passes through the poking plate 24 to be contacted with the outer wall surface of the screw rod 5; the seat board 22 is arranged on the workbench 2 at the lead screw 5, and the seat board 22 and the toggle plate 24 are both L-shaped.
The invention has the working process that the placing mechanism moves towards the workbench 2 along the sliding rail 11 through the pushing cylinder 4, the screw 5 of the ball screw pair passes through the workbench 2 and the screw nut 6 of the ball screw pair is fixedly clamped in the through hole 3, the loading cylinder 8 positioned at the rod part of the lever 15 respectively acts on the pushing lever 15, the loading force 30N is applied to the outer wall of the screw 5 by the measuring shaft 7 through the lever principle and the monitoring of the pressure sensor 16, the screw 5 swings left and right, the stirring cylinder 23 pushes the stirring plate 24 to enable the measuring pen 9 to contact the outer wall of the screw 5, the measuring pen 9 sequentially measures the measured value of the swing of the screw 5, so that the swing play of the ball screw pair can be rapidly detected through the measurement difference, and the detection precision is high.
Claims (2)
1. The swing play detection device for the ball screw pair is characterized by comprising a frame, wherein a workbench is arranged on the frame, a through hole is formed in the workbench, a pushing cylinder is arranged at the bottom of the frame below the through hole, the pushing cylinder is connected with a placing mechanism for placing the ball screw pair, a screw rod of the ball screw pair passes through the workbench from bottom to top through the pushing cylinder, a nut of the ball screw pair is clamped in the through hole, measuring shafts are arranged on two opposite sides of an extending end part of the screw rod, the measuring shafts are connected with lever mechanisms and driven by a loading cylinder, and a measuring pen is arranged outside the screw rod corresponding to the measuring shaft;
a connecting plate is fixed on the side part of the frame below the workbench, a sliding rail arranged towards the workbench is arranged on the connecting plate, and the placing mechanism is slidably arranged on the sliding rail;
the placing mechanism comprises a placing block arranged on the sliding rail, the bottom of the placing block is connected with the pushing cylinder, a hollow placing table is connected to the placing block, and the bottom of the screw rod is arranged in the placing table;
the lever mechanism comprises a balancing weight, a lever and a pressure sensor, wherein the upper part of the lever is connected with the balancing weight, the lower part of the lever is connected with the pressure sensor and then is connected with one end of a measuring shaft, the other end of the measuring shaft is opposite to the outer wall of the screw rod, the middle part of the lever is connected with a fixed block and then is connected with one end of a support plate through a pin shaft, the other end of the support plate is connected with a vertical plate, the upper part of the vertical plate is connected with a loading cylinder, the lower part of the vertical plate is connected with the upper end part of the frame, the loading cylinder is positioned below the balancing weight, and a piston rod of the loading cylinder is opposite to the rod part of the lever;
the end face of the other end of the measuring shaft is an arc face corresponding to the outer wall face of the screw rod, and the measuring shafts on two sides surround the outer wall face of the screw rod through the corresponding arc faces; after the force is applied to the measuring shaft, the screw rod swings left and right;
the pen body of test pencil suit in on the fixed plate on the workstation, the nib part of test pencil is connected with the stirring device, the stirring device is including being fixed in the bedplate on the workstation, be fixed with on the bedplate and stir the cylinder, the piston rod of stirring the cylinder is connected with and stir the board, the nib of test pencil passes stir the board with the outer wall surface of lead screw contacts.
2. The device for detecting the backlash of a ball screw assembly according to claim 1, wherein the seat plate is provided on the table at the screw, and the seat plate and the toggle plate are both L-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710880019.3A CN107525486B (en) | 2017-09-26 | 2017-09-26 | Swing play detection device for ball screw pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710880019.3A CN107525486B (en) | 2017-09-26 | 2017-09-26 | Swing play detection device for ball screw pair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107525486A CN107525486A (en) | 2017-12-29 |
| CN107525486B true CN107525486B (en) | 2024-03-15 |
Family
ID=60737266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710880019.3A Active CN107525486B (en) | 2017-09-26 | 2017-09-26 | Swing play detection device for ball screw pair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107525486B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB708372A (en) * | 1951-01-03 | 1954-05-05 | Sheffield Corp | Improvements in or relating to apparatus for gauging the clearance relationship between bearing race members |
| CN2202310Y (en) * | 1994-07-07 | 1995-06-28 | 襄阳汽车轴承股份有限公司 | Gauge for measuring radial gap of bearings |
| CN101363727A (en) * | 2008-09-05 | 2009-02-11 | 无锡市江益轴承自动化设备有限公司 | Detection device for bearing end-play |
| CN201852548U (en) * | 2010-11-19 | 2011-06-01 | 无锡市博阳精密机械制造有限公司 | Bearing radial internal clearance measuring device |
| CN102506795A (en) * | 2011-10-17 | 2012-06-20 | 无锡双益精密机械有限公司 | Bearing positioning structure of apparatus for measuring bearing play |
| CN103234429A (en) * | 2013-04-19 | 2013-08-07 | 上海海洋大学 | Radial play measuring instrument for horizontal bearing |
| CN103389205A (en) * | 2013-07-17 | 2013-11-13 | 西安交通大学 | Device for detecting comprehensive performance of ball screw assembly in loaded state |
| CN104713509A (en) * | 2015-03-25 | 2015-06-17 | 鹰领航空高端装备技术秦皇岛有限公司 | Measuring device for radial internal clearance of oscillating bearing |
| CN105973124A (en) * | 2016-06-21 | 2016-09-28 | 宁波慈兴精密传动科技有限公司 | Device used for detecting axial clearance of ball screw pair |
| CN207365947U (en) * | 2017-09-26 | 2018-05-15 | 无锡双益精密机械有限公司 | A kind of oscillation backlash detection device for ball screw assembly, |
-
2017
- 2017-09-26 CN CN201710880019.3A patent/CN107525486B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB708372A (en) * | 1951-01-03 | 1954-05-05 | Sheffield Corp | Improvements in or relating to apparatus for gauging the clearance relationship between bearing race members |
| CN2202310Y (en) * | 1994-07-07 | 1995-06-28 | 襄阳汽车轴承股份有限公司 | Gauge for measuring radial gap of bearings |
| CN101363727A (en) * | 2008-09-05 | 2009-02-11 | 无锡市江益轴承自动化设备有限公司 | Detection device for bearing end-play |
| CN201852548U (en) * | 2010-11-19 | 2011-06-01 | 无锡市博阳精密机械制造有限公司 | Bearing radial internal clearance measuring device |
| CN102506795A (en) * | 2011-10-17 | 2012-06-20 | 无锡双益精密机械有限公司 | Bearing positioning structure of apparatus for measuring bearing play |
| CN103234429A (en) * | 2013-04-19 | 2013-08-07 | 上海海洋大学 | Radial play measuring instrument for horizontal bearing |
| CN103389205A (en) * | 2013-07-17 | 2013-11-13 | 西安交通大学 | Device for detecting comprehensive performance of ball screw assembly in loaded state |
| CN104713509A (en) * | 2015-03-25 | 2015-06-17 | 鹰领航空高端装备技术秦皇岛有限公司 | Measuring device for radial internal clearance of oscillating bearing |
| CN105973124A (en) * | 2016-06-21 | 2016-09-28 | 宁波慈兴精密传动科技有限公司 | Device used for detecting axial clearance of ball screw pair |
| CN207365947U (en) * | 2017-09-26 | 2018-05-15 | 无锡双益精密机械有限公司 | A kind of oscillation backlash detection device for ball screw assembly, |
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| Publication number | Publication date |
|---|---|
| CN107525486A (en) | 2017-12-29 |
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