CN109443751B - Be suitable for multi-functional running-in device of multiple model ball screw pair - Google Patents
Be suitable for multi-functional running-in device of multiple model ball screw pair Download PDFInfo
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- CN109443751B CN109443751B CN201811543497.6A CN201811543497A CN109443751B CN 109443751 B CN109443751 B CN 109443751B CN 201811543497 A CN201811543497 A CN 201811543497A CN 109443751 B CN109443751 B CN 109443751B
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- 238000005096 rolling process Methods 0.000 claims abstract description 21
- 230000001050 lubricating effect Effects 0.000 claims abstract description 8
- 239000010687 lubricating oil Substances 0.000 claims abstract description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 208000035874 Excoriation Diseases 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/027—Test-benches with force-applying means, e.g. loading of drive shafts along several directions
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- General Physics & Mathematics (AREA)
- Transmission Devices (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
A multifunctional running-in device suitable for various types of ball screw pairs comprises a headstock, a lathe bed, a sliding table, a tail table, a force applying mechanism, a hydraulic station, a control console and a lubricating mechanism; the headstock is arranged at the end part of the bed body; the sliding table is arranged above the lathe bed through a linear rolling guide rail pair, a linear guide rail of the linear rolling guide rail pair is fixedly connected with the lathe bed, and a sliding block of the linear rolling guide rail pair is fixedly connected with the lower surface of the sliding table; the tail table is arranged above the lathe bed through a linear rolling guide rail pair, and the tail table and the headstock are respectively positioned at two sides of the sliding table; the surface of the sliding table is provided with a detachable nut seat, a screw of the ball screw pair test piece is fixedly arranged between the headstock and the tailstock, a nut of the ball screw pair test piece is fixedly connected to the detachable nut seat, and the ball screw pair test piece is provided with lubricating oil by a lubricating mechanism; the force applying mechanism is arranged on the ground and is connected with the sliding table; the hydraulic station is used as a power source of the force applying mechanism; the control console is used for setting the running-in speed, running-in times and running-in length of the ball screw pair test piece.
Description
Technical Field
The invention belongs to the technical field of running-in tests of rolling functional components, and particularly relates to a multifunctional running-in device applicable to various types of ball screw pairs.
Background
For the brand new ball screw pair, certain fine flaws always exist on the surfaces of internal transmission parts, so that the parts are not tightly engaged with each other in operation, the friction of contact points is severe, and if the ball screw pair is improperly used in the initial stage, the contact points are damaged permanently due to the fact that the friction temperature of the contact points is too high or the load is too high.
After a period of running friction, the internal transmission parts of the brand new ball screw pair are in very consistent contact with the engagement surface, and the surface becomes smoother, and the process is called running-in.
After the brand new ball screw pair runs in through high-speed loading, initial abrasion of the ball screw pair can be eliminated in a short time, so that the ball screw pair is always in a stable abrasion stage in formal application, and a specific defective product can be found before the product leaves the factory through running in, and the product quality of the ball screw pair after leaving the factory is improved.
Currently, there are many devices for running-in test of ball screw pairs, but these devices have more or less problems, specifically: (1) the running-in test can be carried out only by a ball screw pair with a single model, so that the applicability of the device is poor; (2) the ball screw pair cannot be conveniently and quickly installed, and batch running-in test of the ball screw pair is difficult to meet; (3) when the ball screw pair is installed, the lead screw shaft neck of the ball screw pair is easy to damage; (4) it is difficult to accurately apply a load force to the ball screw assembly.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention provides the multifunctional running-in device applicable to the ball screw pairs with various types, which can meet the running-in test of the ball screw pairs with various types and improves the applicability of the device; the ball screw pair can be conveniently and quickly installed, and batch running-in test of the ball screw pair is effectively met; when the ball screw pair is installed, the damage to the screw shaft neck of the ball screw pair is avoided; the load force can be precisely applied to the ball screw assembly.
In order to achieve the above purpose, the present invention adopts the following technical scheme: a multifunctional running-in device suitable for various types of ball screw pairs comprises a headstock, a lathe bed, a sliding table, a tail table, a force applying mechanism, a hydraulic station, a control console and a lubricating mechanism; the headstock is arranged at the end part of the bed body; the sliding table is arranged above the lathe bed through a linear rolling guide rail pair, a linear guide rail of the linear rolling guide rail pair is fixedly connected with the lathe bed, and a sliding block of the linear rolling guide rail pair is fixedly connected with the lower surface of the sliding table; the tail table is arranged above the bed body through a linear rolling guide rail pair, and the tail table and the headstock are respectively positioned at two sides of the sliding table; the upper surface of the sliding table is provided with a detachable nut seat, a screw of the ball screw pair test piece is fixedly arranged between the headstock and the tailstock, a nut of the ball screw pair test piece is fixedly connected to the detachable nut seat, and the ball screw pair test piece is provided with lubricating oil by a lubricating mechanism; the force applying mechanism is arranged on the ground and is connected with the sliding table; the hydraulic station is used as a power source of the force applying mechanism; the control console is used for setting the running-in speed, running-in times and running-in length of the ball screw pair test piece.
The headstock comprises a box body, a main shaft, a chuck, a speed reducer and a motor; the main shaft, the speed reducer and the motor are all positioned in the box body, a motor shaft of the motor is fixedly connected with a power input end of the speed reducer, a power output end of the speed reducer is fixedly connected with the main shaft, the chuck is fixedly arranged on the main shaft, and one end of a screw rod of the ball screw pair test piece is clamped and fixed through the chuck; the motor adopts a servo motor or a variable frequency speed regulating motor.
The upper surface of the sliding table is provided with a first force application position adjusting plate and a second force application position adjusting plate, the first force application position adjusting plate is positioned at the inner side of the sliding table, and the second force application position adjusting plate is positioned at the outer side of the sliding table; according to the difference of the lengths of the lead screws of the ball screw pair test pieces, the positions of the connecting points of the force applying mechanism and the sliding table are also different; when the length of the screw rod of the ball screw pair test piece is from short to long, the position of the connecting point of the force applying mechanism and the sliding table is sequentially provided with a sliding table body, a first force applying position adjusting plate and a second force applying position adjusting plate.
The tail table has linear movement freedom on the linear guide rail of the linear rolling guide rail pair, and the tail table is moved in an automatic mode or a manual mode; the center on the tail table is used for propping the end part of the screw rod of the ball screw pair test piece, and the propping mode of the center is manual propping or hydraulic propping; a process hole is formed in the base of the tail table, and the force applying mechanism penetrates through the process hole and is connected with the sliding table; and the tail table and the lathe bed are limited and fixed through bolts.
The force applying mechanism comprises a double-piston-rod hydraulic cylinder, a tension pressure sensor and a hydraulic cylinder support, wherein the hydraulic cylinder support is fixedly arranged on the ground, the double-piston-rod hydraulic cylinder is fixedly arranged at the top of the hydraulic cylinder support, the end part of a piston rod of the double-piston-rod hydraulic cylinder is hinged with a first adapter block, the tension pressure sensor is fixedly connected with the first adapter block, the tension pressure sensor is fixedly connected with a second adapter block, and the second adapter block is fixedly connected with the sliding table; measuring the acting force exerted on the sliding table through the tension pressure sensor; the hydraulic station is used as a power source of the double-piston rod hydraulic cylinder.
The invention has the beneficial effects that:
the multifunctional running-in device suitable for the ball screw pairs of various types can meet running-in tests of the ball screw pairs of various types, and improves the applicability of the device; the ball screw pair can be conveniently and quickly installed, and batch running-in test of the ball screw pair is effectively met; when the ball screw pair is installed, the damage to the screw shaft neck of the ball screw pair is avoided; the load force can be precisely applied to the ball screw assembly.
Drawings
FIG. 1 is a schematic structural view of a multifunctional running-in device suitable for various types of ball screw pairs in an embodiment;
fig. 2 is a schematic view of the structure of the headbox in the embodiment;
fig. 3 is a schematic structural view of a slide table in the embodiment;
FIG. 4 is a schematic diagram of the structure of the tail stage in an embodiment;
FIG. 5 is a schematic view of the structure of the force applying mechanism in the embodiment;
in the figure, 1-headstock, 2-lathe bed, 3-slipway, 4-tailstock, 5-force applying mechanism, 6-hydraulic station, 7-control desk, 8-linear rolling guide rail pair, 9-detachable nut seat, 10-ball screw pair test piece, 11-box, 12-chuck, 13-first force application position adjusting plate, 14-second force application position adjusting plate, 15-center, 16-process hole, 17-double piston rod hydraulic cylinder, 18-tension pressure sensor, 19-hydraulic cylinder support, 20-first adapter block and 21-second adapter block.
Detailed Description
The invention will now be described in further detail with reference to the drawings and to specific examples.
As shown in fig. 1 to 5, a multifunctional running-in device suitable for various types of ball screw pairs comprises a headstock 1, a lathe bed 2, a sliding table 3, a tail table 4, a force applying mechanism 5, a hydraulic station 6, a control console 7 and a lubricating mechanism; the headstock 1 is arranged at the end part of the bed body 2; the sliding table 3 is arranged above the lathe bed 2 through a linear rolling guide rail pair 8, a linear guide rail of the linear rolling guide rail pair 8 is fixedly connected to the lathe bed 2, and a sliding block of the linear rolling guide rail pair 8 is fixedly connected to the lower surface of the sliding table 3; the tail table 4 is arranged above the lathe bed 2 through a linear rolling guide rail pair 8, and the tail table 4 and the headstock 1 are respectively positioned at two sides of the sliding table 3; a detachable screw seat 9 is arranged on the upper surface of the sliding table 3, a screw of a ball screw pair test piece 10 is fixedly arranged between the headstock 1 and the tailstock 4, a screw of the ball screw pair test piece 10 is fixedly connected to the detachable screw seat 9, and the ball screw pair test piece 10 is provided with lubricating oil by a lubricating mechanism; the force applying mechanism 5 is arranged on the ground, and the force applying mechanism 5 is connected with the sliding table 3; the hydraulic station 6 is used as a power source of the force applying mechanism 5; the console 7 is used for setting the running-in speed, running-in times and running-in length of the ball screw pair test piece 8.
The headstock 1 comprises a box body 11, a main shaft, a chuck 12, a speed reducer and a motor; the main shaft, the speed reducer and the motor are all positioned in the box body 1, a motor shaft of the motor is fixedly connected with a power input end of the speed reducer, a power output end of the speed reducer is fixedly connected with the main shaft, the chuck 12 is fixedly arranged on the main shaft, and one end of a screw of the ball screw pair test piece 10 is clamped and fixed through the chuck 12; the motor adopts a servo motor or a variable frequency speed regulating motor.
A first force application position adjusting plate 13 and a second force application position adjusting plate 14 are arranged on the upper surface of the sliding table 3, the first force application position adjusting plate 13 is positioned on the inner side of the sliding table 3, and the second force application position adjusting plate 14 is positioned on the outer side of the sliding table 3; according to the difference of the screw length of the ball screw pair test piece 10, the positions of the connecting points of the force applying mechanism 5 and the sliding table 3 are also different; when the length of the screw rod of the ball screw pair test piece 10 is from short to long, the positions of the connection points of the force applying mechanism 5 and the sliding table 3 are sequentially the sliding table 3 body, the first force applying position adjusting plate 13 and the second force applying position adjusting plate 14.
The tail table 4 has linear movement freedom on a linear guide rail of the linear rolling guide rail pair 8, and the tail table 4 is moved in an automatic mode or a manual mode; the center 15 on the tail table 4 is used for tightly pushing the screw end part of the ball screw pair test piece 10, and the tightly pushing mode of the center 15 is manual tightly pushing or hydraulic tightly pushing; a process hole 16 is formed in the base of the tail table 4, and the force applying mechanism 5 penetrates through the process hole 16 and is connected with the sliding table 3; the tail table 4 and the lathe bed 2 are fixed in a limiting mode through bolts.
The force applying mechanism 5 comprises a double-piston-rod hydraulic cylinder 17, a pull pressure sensor 18 and a hydraulic cylinder support 19, wherein the hydraulic cylinder support 19 is fixedly arranged on the ground, the double-piston-rod hydraulic cylinder 17 is fixedly arranged at the top of the hydraulic cylinder support 19, a first adapter block 20 is hinged to the end part of a piston rod of the double-piston-rod hydraulic cylinder 17, the pull pressure sensor 18 is fixedly connected to the first adapter block 20, a second adapter block 21 is fixedly connected to the pull pressure sensor 18, and the second adapter block 21 is fixedly connected with the sliding table 3; measuring the force exerted on the slipway 3 by means of said pull pressure sensor 18; the hydraulic station 6 serves as a power source for a double piston rod hydraulic cylinder 17.
The use of the invention is described below with reference to the accompanying drawings:
in this embodiment, the numerical control system built in the console 7 is a siemens numerical control system, and has the capability of setting the running-in speed, the running-in times and the running-in length of the ball screw pair test piece 10; the chuck 12 of the headstock 1 is an ER elastic chuck; the motor in the headstock 1 is a servo motor, and running-in speed is adjusted steplessly in a range of 0-500 r/min; the force applying mechanism 5 has the capability of continuously applying a load force of 6-18 kN in two directions.
Clamping one end of a screw of a ball screw pair test piece 10 to be subjected to running-in test on a chuck 12, and jacking and fixing the other end of the screw through a center 15 on a tail table 4; meanwhile, the detachable screw seat 9 matched with the screw of the ball screw pair test piece 10 is selected, the screw of the ball screw pair test piece 10 and the matched detachable screw seat 9 are assembled together, the whole installation process is quick and efficient, the damage to a screw shaft neck is avoided, and the batch running-in test requirement of the ball screw pair is completely met.
After the ball screw pair test piece 10 is installed, the running-in speed, the running-in times and the running-in length are set on the control console 7, then a motor in the headstock 1 is started, the screw of the ball screw pair test piece 10 is driven to rotate, and running-in test is started.
In the running-in test process, the screw of the ball screw pair test piece 10 needs to be always ensured not to bend, and the double-piston-rod hydraulic cylinder 17 of the force applying mechanism 5 needs to continuously adjust the force applying direction, so that the screw of the ball screw pair test piece 10 only bears tensile stress.
After the ball screw pair test piece 10 of a certain model completes running-in test, when running-in test needs to be continuously carried out on the ball screw pair test piece 10 of other models, the diameter and the length of the screw of the ball screw pair test piece 10 of a new model are changed, at the moment, only the detachable nut seat 9 matched with the previous model needs to be detached, the detachable nut seat 9 matched with the new model needs to be replaced, then the ball screw pair test piece 10 of the new model is installed on a running-in device, running-in test can be continuously carried out, and the applicability of the running-in device is effectively improved.
The embodiments are not intended to limit the scope of the invention, but rather are intended to cover all equivalent implementations or modifications that can be made without departing from the scope of the invention.
Claims (2)
1. Be suitable for multi-functional running-in device of multiple model ball pair, its characterized in that: comprises a headstock, a lathe bed, a sliding table, a tail table, a force applying mechanism, a hydraulic station, a control console and a lubricating mechanism; the headstock is arranged at the end part of the bed body; the sliding table is arranged above the lathe bed through a linear rolling guide rail pair, a linear guide rail of the linear rolling guide rail pair is fixedly connected with the lathe bed, and a sliding block of the linear rolling guide rail pair is fixedly connected with the lower surface of the sliding table; the tail table is arranged above the bed body through a linear rolling guide rail pair, and the tail table and the headstock are respectively positioned at two sides of the sliding table; the upper surface of the sliding table is provided with a detachable nut seat, a screw of the ball screw pair test piece is fixedly arranged between the headstock and the tailstock, a nut of the ball screw pair test piece is fixedly connected to the detachable nut seat, and the ball screw pair test piece is provided with lubricating oil by a lubricating mechanism; the force applying mechanism is arranged on the ground and is connected with the sliding table; the hydraulic station is used as a power source of the force applying mechanism; the control console is used for setting the running-in speed, running-in times and running-in length of the ball screw pair test piece;
the upper surface of the sliding table is provided with a first force application position adjusting plate and a second force application position adjusting plate, the first force application position adjusting plate is positioned at the inner side of the sliding table, and the second force application position adjusting plate is positioned at the outer side of the sliding table; according to the difference of the lengths of the lead screws of the ball screw pair test pieces, the positions of the connecting points of the force applying mechanism and the sliding table are also different; when the length of the screw rod of the ball screw pair test piece is from short to long, the position of the connecting point of the force applying mechanism and the sliding table is sequentially provided with a sliding table body, a first force applying position adjusting plate and a second force applying position adjusting plate;
the tail table has linear movement freedom on the linear guide rail of the linear rolling guide rail pair, and the tail table is moved in an automatic mode or a manual mode; the center on the tail table is used for propping the end part of the screw rod of the ball screw pair test piece, and the propping mode of the center is manual propping or hydraulic propping; a process hole is formed in the base of the tail table, and the force applying mechanism penetrates through the process hole and is connected with the sliding table; the tail table and the lathe bed are fixed in a limiting manner through bolts;
the force applying mechanism comprises a double-piston-rod hydraulic cylinder, a tension pressure sensor and a hydraulic cylinder support, wherein the hydraulic cylinder support is fixedly arranged on the ground, the double-piston-rod hydraulic cylinder is fixedly arranged at the top of the hydraulic cylinder support, the end part of a piston rod of the double-piston-rod hydraulic cylinder is hinged with a first adapter block, the tension pressure sensor is fixedly connected with the first adapter block, the tension pressure sensor is fixedly connected with a second adapter block, and the second adapter block is fixedly connected with the sliding table; measuring the acting force exerted on the sliding table through the tension pressure sensor; the hydraulic station is used as a power source of the double-piston rod hydraulic cylinder.
2. The multifunctional running-in device applicable to multiple types of ball screw pairs according to claim 1, wherein: the headstock comprises a box body, a main shaft, a chuck, a speed reducer and a motor; the main shaft, the speed reducer and the motor are all positioned in the box body, a motor shaft of the motor is fixedly connected with a power input end of the speed reducer, a power output end of the speed reducer is fixedly connected with the main shaft, the chuck is fixedly arranged on the main shaft, and one end of a screw rod of the ball screw pair test piece is clamped and fixed through the chuck; the motor adopts a servo motor or a variable frequency speed regulating motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811543497.6A CN109443751B (en) | 2018-12-17 | 2018-12-17 | Be suitable for multi-functional running-in device of multiple model ball screw pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811543497.6A CN109443751B (en) | 2018-12-17 | 2018-12-17 | Be suitable for multi-functional running-in device of multiple model ball screw pair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109443751A CN109443751A (en) | 2019-03-08 |
| CN109443751B true CN109443751B (en) | 2024-02-23 |
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| CN201811543497.6A Active CN109443751B (en) | 2018-12-17 | 2018-12-17 | Be suitable for multi-functional running-in device of multiple model ball screw pair |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111521391A (en) * | 2020-05-06 | 2020-08-11 | 北京工业大学 | Ball screw pair thermal deformation and dynamic characteristic testing device |
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| CN206192654U (en) * | 2016-11-26 | 2017-05-24 | 陕西理工学院 | Planet ball screw pair 's two -way change loading device |
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| CN202075120U (en) * | 2011-04-01 | 2011-12-14 | 北京精密天工滚珠丝杠股份有限公司 | Variable-load service life tester for ball screw pair |
| CN102445340A (en) * | 2011-09-30 | 2012-05-09 | 优励聂夫（南京）科技有限公司 | Loading running-in device for ball screw pair and running-in testing method thereof |
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| CN109443751A (en) | 2019-03-08 |
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