CN107576299B - Detection device for ball screw pair - Google Patents
Detection device for ball screw pair Download PDFInfo
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- CN107576299B CN107576299B CN201710879745.3A CN201710879745A CN107576299B CN 107576299 B CN107576299 B CN 107576299B CN 201710879745 A CN201710879745 A CN 201710879745A CN 107576299 B CN107576299 B CN 107576299B
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- 238000001514 detection method Methods 0.000 title claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 50
- 238000003756 stirring Methods 0.000 claims description 14
- 238000012360 testing method Methods 0.000 claims description 14
- 238000006073 displacement reaction Methods 0.000 claims description 11
- 238000012544 monitoring process Methods 0.000 claims description 9
- 230000006698 induction Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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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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Abstract
The detection device for the ball screw pair is convenient to operate, can detect the swing play and the friction moment of the ball screw pair, and has high precision; the device comprises a swing play detection device and a friction moment detection device, wherein the swing play detection device comprises a first rack and a first workbench arranged on the first rack, a pushing cylinder is arranged below a first through hole on the first workbench, the pushing cylinder is connected with a first placing mechanism, a screw rod passes through the first workbench and a screw nut is clamped in the first through hole, measuring shafts are arranged on two sides of an extending end of the screw rod, the measuring shafts are connected with a lever mechanism, and a measuring pen is arranged outside the screw rod; the friction torque detection device comprises a second frame and a second workbench at the lower part of the second frame, a working plate is arranged on the second frame above the second placement mechanism on the second workbench and connected with a lifting cylinder at the top end of the second frame, a servo motor, a torque sensor and a ball spline which are connected are arranged on the working plate, and a spline linkage mechanism is connected below the ball spline and is matched with the screw rod.
Description
Technical Field
The invention relates to the technical field of ball screw pairs, in particular to a 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 swinging clearance and friction moment of the ball screw pair are important service performance parameters of the ball screw pair, and the positioning accuracy, transmission efficiency, motion stability, service life and the like of a product are directly affected, firstly, the swinging clearance of the ball screw pair, namely the difference value of the channel clearance between a screw and a screw of a steel ball, is 0.32 mm-0.7 mm, the standard of the existing qualified swinging clearance value is 0.32mm, the existing method for detecting the swinging clearance is to detect through a clearance gauge, namely the clearance gauge is plugged between the steel ball and the screw and between the screw and an inner (outer) ring of the screw, and the obtained clearance gauge thickness value is used for obtaining the swinging clearance value of the ball screw pair, but the detection method is complex in operation and low in detection accuracy; and the friction torque of the ball screw pair is measured, so that the development level of the ball screw pair produced in China is not smaller than that of the ball screw pair produced abroad at present, and besides factors such as the precision of raw materials and processing equipment, the lack of a perfect test detection means is an important reason for restricting the development of the ball screw pair.
Disclosure of Invention
In view of the above problems, the present invention provides a detection device for a ball screw pair, which is convenient to operate, can rapidly detect the swing play and friction torque of the ball screw pair, and has high detection accuracy.
The technical scheme is characterized by comprising a swing play detection device and a friction torque detection device which are positioned at the same station, wherein the swing play detection device comprises a first rack, a first workbench is arranged on the first rack, a first through hole is formed in the first workbench, a pushing cylinder is arranged at the bottom of the first rack and positioned below the first through hole, the pushing cylinder is connected with a first placing mechanism for placing a ball screw pair, a screw rod of the ball screw pair penetrates through the first workbench through the pushing cylinder, a nut of the ball screw pair is clamped in the first through hole, measuring shafts are arranged on two opposite sides of the extending end part of the screw rod, the measuring shafts are connected with lever mechanisms and are driven through loading cylinders, and a measuring pen is arranged outside the screw rod corresponding to the measuring shaft; the friction torque detection device comprises a second rack, a second workbench is arranged at the lower part of the second rack, a second placing mechanism for placing the ball screw pair is arranged on the second workbench, a working plate is slidably arranged on the second rack above the second placing mechanism and is connected with a lifting cylinder at the top end of the second rack, a servo motor, a torque sensor and ball splines are sequentially arranged on the working plate from top to bottom and are connected with each other through a coupling, and a spline linkage mechanism is connected below the ball splines through a connecting rod and is matched with a screw of the ball screw pair.
It is further characterized by:
a first connecting plate is fixed on the side part of the first rack below the first workbench, a sliding rail arranged towards the first workbench is arranged on the first connecting plate, and the first placing mechanism is slidably arranged on the sliding rail;
the first placing mechanism comprises a first placing block arranged on the sliding rail, the bottom of the first placing block is connected with the pushing cylinder, a hollow first placing table is connected to the first placing block, and the bottom of the screw rod is arranged in the first 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 fixing 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 first rack, 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 first 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 first 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 first workbench at the lead screw, and the seat board and the toggle board are all L-shaped;
the second placing mechanism comprises a second placing block, the second placing block is fixed on the second workbench, a hollow second placing table is arranged on the second placing block, and a nut of the ball screw pair is arranged in the second placing table;
a linear guide rail is arranged on the second frame right below the lifting cylinder along the length direction of the second frame, and the working plate is arranged on a first sliding block of the linear guide rail;
the spline linkage mechanism comprises a connecting disc which is connected with the connecting rod in a penetrating way, the bottom end of the connecting disc is connected with a spline sleeve, an upper supporting plate is sleeved on the spline sleeve, a lower supporting plate is connected to the end face of the outer ring of the upper supporting plate through a pin shaft I, a chassis is mounted on the lower supporting plate, the chassis is in tight fit connection with one end of a pin shaft II, and the other end of the pin shaft II is in clearance fit connection with the spline sleeve;
the chassis is T-shaped and is clamped on the lower supporting piece, a second through hole is formed in the center of the chassis, and the end part of the screw rod of the ball screw pair is arranged in the second through hole; the hole on the spline housing and the second through hole on the chassis are positioned on the same central line, and the aperture of the hole on the spline housing is larger than that of the second through hole;
the spline housing above the upper supporting plate is connected with a monitoring mechanism through a second connecting plate, the monitoring mechanism comprises a fixing frame fixed on the second frame and a displacement sensor arranged on the fixing frame, a guide rail is arranged on the fixing frame along the length direction of the fixing frame, one end of the second connecting plate is connected to the spline housing, the other end of the second connecting plate is mounted on a second sliding block of the guide rail, the second sliding block is further connected with one end of the guide plate, and the other end of the guide plate is sleeved on an induction rod of the displacement sensor.
The invention has the advantages that the swing play detection device and the friction moment detection device are positioned on the same station, after the screw rod of the ball screw pair passes through the first workbench and the screw nut and is clamped in the first through hole by pushing the air cylinder, the measuring shafts on the two sides are matched with the lever mechanism and the loading air cylinder to successively apply loading force to the screw rod to enable the screw rod to swing left and right, the measuring pen is used for successively measuring the measured value of the swing of the screw rod, thus the swing play of the ball screw pair can be rapidly detected through the measuring difference value, after the swing play is detected, the ball screw pair is transmitted and installed in the second placement mechanism, the lifting air cylinder pushes the working plate to vertically move up and down, the servo motor on the working plate drives the spline linkage mechanism to rotate, and the screw rod of the ball screw pair is matched with the spline linkage mechanism, so that the displacement can be accurately controlled by the servo motor, the torque can be monitored by the torque sensor, the friction moment of the ball screw pair can be effectively measured, the measuring precision is high, and the measuring sensitivity is also high.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a perspective view of the wobble play detection device;
fig. 3 is a front view of the wobble play detection device;
fig. 4 is a perspective view of the friction torque detecting means;
fig. 5 is a front view of the friction torque detecting means;
fig. 6 is a cross-sectional view of the spline linkage mechanism.
Detailed Description
As shown in fig. 1-6, the invention comprises a swing play detection device and a friction moment detection device which are positioned at the same station, wherein the swing play detection device comprises a first frame 1, a first workbench 2 is arranged on the first frame 1, a first through hole 3 is arranged on the first workbench 2, a pushing cylinder 4 is arranged at the bottom of the first frame 1 positioned below the first through hole 3, the pushing cylinder 4 is connected with a first placing mechanism for placing a ball screw pair, a screw rod 5 of the ball screw pair penetrates through the first workbench 2 and a screw nut 6 of the ball screw pair and is clamped in the first through hole 3 through the pushing cylinder 4, shaft measuring 7 is arranged on two opposite sides of the extending end part of the screw rod 5, the shaft measuring 7 is connected with a lever mechanism, and a pen measuring 9 is arranged outside the screw rod 5 corresponding to the shaft measuring 7 and driven by a loading cylinder 8;
a first connecting plate 10 is fixed on the side part of the first frame 1 below the first workbench 2, a sliding rail 11 arranged towards the first workbench 2 is arranged on the first connecting plate 10, and a first placing mechanism is slidably arranged on the sliding rail 11; the first placing mechanism comprises a first placing block 12 arranged on a sliding rail 11, the bottom of the first placing block 12 is connected with a pushing cylinder 4, the first placing block 12 is connected with a hollow first placing table 13, and the bottom of a screw rod 5 is arranged in the first 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 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 part of a first 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 first 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 first 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 first workbench 2 at the lead screw 5, and the seat board 22 and the toggle plate 24 are both L-shaped.
As shown in fig. 4-6, the friction torque detecting device includes a second frame 25, a second workbench 26 is disposed at the lower part of the second frame 25, a second placing mechanism for placing a ball screw pair is disposed on the second workbench 26, a working plate 27 is slidably mounted on the second frame 25 above the second placing mechanism, that is, a linear guide rail 29 is disposed on the second frame 25 directly below the lifting cylinder 28 along the length direction thereof, and the working plate 27 is mounted on a first slider of the linear guide rail 29; the upper end of the working plate 27 is connected with a lifting cylinder 28 at the top end of the second frame 25, a servo motor 30, a torque sensor 31 and ball splines 32 are sequentially arranged on the working plate 27 from top to bottom, the working plate 27 is connected with each other through a coupler 33, and spline linkage mechanisms are connected below the ball splines 32 through connecting rods 34 and are matched with a screw 5 of a ball screw pair.
The second placing mechanism comprises a second placing block 35, the second placing block 35 is fixed on the second workbench 26, a hollow second placing table 36 is arranged on the second placing block 35, and a nut 6 of the ball screw pair is arranged in the second placing table 36; wherein the table top of the first placing table 13 and the table top of the second placing table 36 before being pushed by the pushing cylinder 4 are positioned on the same horizontal line; the spline linkage mechanism comprises a connecting disc 37 which is in penetrating connection with a connecting rod 34, a spline sleeve 38 is connected to the bottom end of the connecting disc 37, an upper supporting plate 39 is sleeved on the spline sleeve 38, a lower supporting plate 41 is connected to the outer ring end face of the upper supporting plate 39 through 4 first pin shafts 40, a chassis 42 is arranged on the lower supporting plate 41, the chassis 42 is in matched connection with the upper supporting plate 39 through 12 second pin shafts 43, namely the chassis 42 is in tight fit connection with one end of the second pin shafts 43, the other end of the second pin shafts 43 is in clearance fit connection with the spline sleeve 38, and the size of a clearance between the second pin shafts 43 and the spline sleeve 38 is the swinging amount of the chassis 42; the chassis 42 is T-shaped and is clamped on the lower supporting plate 41, a second through hole 44 is formed in the center of the chassis 42, and the end part of the screw 5 of the ball screw pair is arranged in the second through hole 44; the hole on the spline housing 38 and the second through hole 44 on the chassis 42 are positioned on the same central line, and the aperture of the hole on the spline housing 38 is larger than the aperture of the second through hole 44; the spline housing 38 above the upper supporting plate 39 is connected with a monitoring mechanism through a second connecting plate 45, the monitoring mechanism comprises a fixing frame 46 fixed on the second frame 25 and a displacement sensor 47 arranged on the fixing frame 46, a guide rail 48 is arranged on the fixing frame 46 along the length direction of the fixing frame, one end of the second connecting plate 45 is connected to the spline housing 38, the other end of the second connecting plate 45 is arranged on a second sliding block 49 of the guide rail 48, the second sliding block 49 is also connected with one end of a guide plate 50, and the other end of the guide plate 50 is sleeved on an induction rod 51 of the displacement sensor 47.
The invention has the working process that a first placing mechanism moves to a first workbench 2 along a sliding rail 11 through a pushing cylinder 4, a screw 5 of a ball screw pair passes through the first workbench 2 and a nut 6 of the ball screw pair is fixedly clamped in a first through hole 3, a loading cylinder 8 positioned at the rod part of a lever 15 respectively acts on a pushing lever 15, a loading force 30N is applied to the outer wall of the screw 5 by a measuring shaft 7 through the lever principle and monitoring of a pressure sensor 16, the screw 5 swings left and right, a stirring cylinder 23 pushes a stirring plate 24 to enable a measuring pen 9 to contact the outer wall of the screw 5, and 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 measured difference, and the detection precision is high; after the detection of the swing play is completed, the ball screw pair returns to the original position through the pushing cylinder 4 and the first placing table 13, then the ball screw pair is conveyed through clamping jaws (not shown in the drawing) on a production line and is installed in the second placing mechanism, the lifting cylinder 28 pushes the working plate 27 to vertically move up and down along the linear guide rail 29 until the end part of the screw 5 of the ball screw pair is placed in the second through hole 44 of the chassis 42, then the servo motor 30 on the working plate 27 drives the spline linkage mechanism to rotate, the displacement can be accurately controlled through the servo motor 30, torque can be monitored through the torque sensor 31, meanwhile, a monitoring mechanism is connected to the spline sleeve 38 through the second connecting plate 45, the sliding block two 49 and the second connecting plate 45 are also moved up and down along in the up-and-down movement process of the spline linkage mechanism, the guide plate 50 is installed on the sensing rod 51 of the displacement sensor 47, the displacement sensor 47 can monitor the displacement, the effect of double monitoring is achieved, the measurement accuracy is high, the friction torque of the ball screw pair can be effectively measured, and the measurement sensitivity is also high.
Claims (4)
1. The detection device for the ball screw pair is characterized by comprising a swing play detection device and a friction torque detection device which are positioned at the same station, wherein the swing play detection device comprises a first rack, a first workbench is arranged on the first rack, a first through hole is formed in the first workbench, a pushing cylinder is arranged at the bottom of the first rack and below the first through hole, the pushing cylinder is connected with a first placement mechanism for placing the ball screw pair, a screw of the ball screw pair passes through the first workbench from bottom to top through the pushing cylinder, a nut of the ball screw pair is clamped in the first through hole, test shafts are arranged on two opposite sides of the extending end part of the screw, the test shafts are connected with a lever mechanism and are driven by a loading cylinder, and a test pen is arranged outside the screw corresponding to the test shaft; the friction torque detection device comprises a second rack, a second workbench is arranged at the lower part of the second rack, a second placing mechanism for placing the ball screw pair is arranged on the second workbench, a working plate is slidably arranged on the second rack above the second placing mechanism and is connected with a lifting cylinder at the top end of the second rack, a servo motor, a torque sensor and ball splines are sequentially arranged on the working plate from top to bottom and are connected with each other through a coupler, and a spline linkage mechanism is connected below the ball splines through a connecting rod and is matched with a screw of the ball screw pair;
a first connecting plate is fixed on the side part of the first rack below the first workbench, a sliding rail arranged towards the first workbench is arranged on the first connecting plate, and the first placing mechanism is slidably arranged on the sliding rail;
the first placing mechanism comprises a first placing block arranged on the sliding rail, the bottom of the first placing block is connected with the pushing cylinder, a hollow first placing table is connected to the first placing block, and the bottom of the screw rod is arranged in the first 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 fixing 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 first rack, 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 the test pen is sleeved on a fixed plate on the first 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 first 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 first workbench at the lead screw, and the seat board and the toggle board are all L-shaped;
a linear guide rail is arranged on the second frame right below the lifting cylinder along the length direction of the second frame, and the working plate is arranged on a first sliding block of the linear guide rail;
the second placing mechanism comprises a second placing block, the second placing block is fixed on the second workbench, a hollow second placing table is arranged on the second placing block, and a nut of the ball screw pair is arranged in the second placing table.
2. The detection device for the ball screw assembly according to claim 1, wherein the spline linkage mechanism comprises a connecting disc which is connected with the connecting rod in a penetrating mode, a spline sleeve is connected to the bottom end of the connecting disc, an upper supporting plate is sleeved on the spline sleeve, a lower supporting plate is connected to the end face of an outer ring of the upper supporting plate through a first pin shaft, a chassis is mounted on the lower supporting plate, the chassis is connected with one end of a second pin shaft in a tight fit mode, and the other end of the second pin shaft is connected with the spline sleeve in a clearance fit mode.
3. The detection device for the ball screw pair according to claim 2, wherein the chassis is T-shaped and is clamped on the lower supporting plate, a second through hole is formed in the center of the chassis, and the screw end of the ball screw pair is arranged in the second through hole; the hole on the spline housing and the second through hole on the chassis are positioned on the same central line, and the aperture of the hole on the spline housing is larger than that of the second through hole.
4. The detection device for the ball screw assembly according to claim 3, wherein the spline housing above the upper supporting plate is connected with a monitoring mechanism through a second connecting plate, the monitoring mechanism comprises a fixing frame fixed on the second frame and a displacement sensor arranged on the fixing frame, a guide rail is arranged on the fixing frame along the length direction of the fixing frame, one end of the second connecting plate is connected to the spline housing, the other end of the second connecting plate is arranged on a second sliding block of the guide rail, the second sliding block is further connected with one end of a guide plate, and the other end of the guide plate is sleeved on an induction rod of the displacement sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710879745.3A CN107576299B (en) | 2017-09-26 | 2017-09-26 | Detection device for ball screw pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710879745.3A CN107576299B (en) | 2017-09-26 | 2017-09-26 | Detection device for ball screw pair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107576299A CN107576299A (en) | 2018-01-12 |
| CN107576299B true CN107576299B (en) | 2024-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710879745.3A Active CN107576299B (en) | 2017-09-26 | 2017-09-26 | Detection device for ball screw pair |
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| CN109916542B (en) * | 2019-03-22 | 2020-11-06 | 南京理工大学 | On-line measurement device and method for friction torque of ball screw pair for hand-held machine tool |
| CN110243513B (en) * | 2019-06-28 | 2024-02-06 | 无锡双益精密机械有限公司 | Ball screw pair efficiency detection device |
| CN112414704B (en) * | 2020-11-17 | 2022-10-28 | 库卡机器人(广东)有限公司 | Spline lead screw testing device |
| CN119574108B (en) * | 2025-02-06 | 2025-04-25 | 上海核工程研究设计院股份有限公司 | Test device for simulating the friction degradation behavior of ball screw pairs |
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