CN107167312A - A kind of Linear transmission product fatigue life test machine - Google Patents
A kind of Linear transmission product fatigue life test machine Download PDFInfo
- Publication number
- CN107167312A CN107167312A CN201610129774.3A CN201610129774A CN107167312A CN 107167312 A CN107167312 A CN 107167312A CN 201610129774 A CN201610129774 A CN 201610129774A CN 107167312 A CN107167312 A CN 107167312A
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- CN
- China
- Prior art keywords
- fatigue life
- value
- linear transmission
- life test
- test machine
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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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention is the testing machine being used for quickly detecting to Linear transmission part life, is rapidly found out by testing result and to the gap of standard specimen product or original design, so as to improve the research and development speed of product.
Description
Technical field
The present invention relates to a kind of Linear transmission product fatigue life test machine, and in particular to a kind of to line slideway and cunning
Block, optical axis and linear bearing, ball-screw and screw etc. carry out the machine of fatigue life test.
Background technology
The present invention is the testing machine being used for quickly detecting to Linear transmission part life, is rapidly found out by testing result
With the gap to standard specimen product or original design, so as to improve the research and development speed of product.
The content of the invention
The present invention adopts the technical scheme that to solve above-mentioned technical problem：
A kind of fatigue life test machine of Linear transmission parts, it includes Working gantry, drive system, detecting system, load
System, test fixture and measured piece.See accompanying drawing 1 and accompanying drawing 2.The Working gantry is by aluminium section bar frame 1 and the structure of mounting platform 2
Into.Aluminium section bar frame is made up of aluminum alloy industrial profile, and in fixed and ground base.Stand is taken into full account during the design of frame
Strength and stiffness, vibration during experiment is reduced as far as possible, and then reduce influence to result of the test.Mounting platform one side conduct
The level reference of experiment is, it is necessary to reach 1 grade of JB/T7974-1999 standards；On the other hand as versatility platform, above it
Mounting hole will use cross-species transferability more, it is more easily connected with a variety of test fixtures.
The drive system can use two kinds of forms according to by the difference of test specimen：
The first drive system to linear reciprocation product testing, as shown in Figure 1.Drive system by servomotor 3, main pulley 4,
Timing belt 5, incidentally wheel 7, master pendulum arm 6 and attached swing arm 8 are constituted；
It is another to by convert rotational motion be straight reciprocating motion drive system, see Fig. 2.Drive system by servomotor 3,
Main pulley 4, timing belt 5 and incidentally wheel 7 constitute.
The measuring system can use two kinds of forms according to by the difference of test specimen：
The first measuring system to linear reciprocation product testing, as shown in Figure 1.Measuring system be by laser displacement sensor 9,
Constituted with force snesor 11.Force snesor 11 detects the force value acted on sliding block, and displacement transducer 9 is used to detect measured piece
（Optical axis and linear bearing）10 shift value, displacement and force value curve can be formed by controller.Force snesor 11 uses three
Axle sensor, and then the force value change in three directions of collection is analyzed exactly.And with try hard to keep protective function, i.e. testpieces
Force value reach when reaching the standard grade with offline value of setting, equipment log, stop experiment, and alarm；
It is another to by convert rotational motion be straight reciprocating motion measuring system, as shown in Figure 2.Measuring system is by moment of torsion
Sensor 6 and laser displacement sensor 8 are constituted.Moment of torsion sensor 6 detects the torque value acted on leading screw 11, displacement transducer 8
For detecting measured piece（Leading screw and nut）The shift value of 11 movements, displacement and torque value curve can be formed by controller.
And the torque value with torsion protection function, i.e. testpieces reaches when reaching the standard grade with offline value of setting, equipment record experiment knot
Really, stop experiment, and alarm.
The load system has counterweight and connecting plate to constitute（It is counterweight 12, connecting plate 13 in Fig. 1, is counterweight 9 in Fig. 2, even
Fishplate bar 10）.The load of workpiece is adjusted by increasing and decreasing counterweight.By connecting plate subject part can be made to bear vertical load or unbalance loading
Lotus.
The test fixture and measured piece, i.e. Fig. 1 test fixtures 14 and by test specimen it is（Optical axis and linear bearing）10, Fig. 2
Middle test fixture 14 and measured piece（Leading screw and nut）11.It is that handle is fixed on test platform by test specimen by the effect of test specimen frock.
Platform that the present invention is designed and taken into full account by the precision and versatility of test specimen frock and can complete a variety of series by test specimen
Experiment.
Present invention additionally comprises outside man-machine interface instruction inputting device, safe fence and safety lock, printing device etc., its is equal
For the auxiliary facility of this testing machine, it is the common knowledge of this area, no longer states herein.
Brief description of the drawings
Drive system of the accompanying drawing 1 to linear reciprocation product testing
2 pairs of accompanying drawing is by measuring system of the convert rotational motion for straight reciprocating motion
Aluminium section bar frame 1 in accompanying drawing 1, mounting platform 2, servomotor 3, main pulley 4, timing belt 5, incidentally master pendulum arm 6, wheel 7, attached
Swing arm 8, laser displacement sensor 9, measured piece 10, force snesor 11, counterweight 12, connecting plate 13, test fixture 14
Aluminium section bar frame 1, mounting platform 2, servomotor 3, main pulley 4, timing belt 5, torque sensor 6, subsidiary wheel in accompanying drawing 2
7th, laser displacement sensor 8, counterweight 9, connecting plate 10, measured piece（Leading screw and nut）11st, test fixture 12
The beneficial effect that includes compared with prior art of the present invention is：
1. the present invention carries out fatigue system motion by servomotor driving mechanical mechanism drive system, pass through power/moment of torsion and position
The precise acquisition pilot production curve of shifting（Displacement and force curve, displacement and torque curve）, realize to Linear transmission product fatigue
Life-span accurately test and analyze.The industry all uses cylinder, hydraulic cylinder or electric cylinder as drivetrain substantially at home
System is tested.Because as fatigue test function driving source should will by the anti-fatigue performance of test specimen more preferably, such ability
Make test result more reliable.But the life-span of cylinder and electric cylinders is less than or is substantially equal to by the life-span of test specimen.And it is domestic such
Testing machine do not carry out the precise acquisition of power/moment of torsion and displacement, analysis yet.So the present invention than legacy equipment have it is more accurate
Really, simpler, more energy efficient and more reliable the advantages of；
3. the present invention drives rotation or the angle of oscillation angle value of main synchronous pulley 4 by setting servomotor, easily to by test specimen
Speed and stroke and the period of motion set.Furthermore it is also possible to which the length adjustment by adjusting master pendulum arm 6, easily right
By the stroke of test specimen；
4. the present invention can carry out real-time accurate detection by measuring system to the displacement moved by test specimen and power/moment of torsion, so that
Obtain with the change for being changed its active force/driving torque by test specimen stroke, and then to be analyzed and being produced by the abrasion condition of test specimen
Product optimization provides more reliable test data；
5. the present invention can carry out binary channels test（I.e. two groups are tested simultaneously by test specimen）, two groups can be preferably carried out by test specimen
To mark test；
6. the present invention can complete a variety of Linear transmission products and carry out fatigue life test, and simple and convenient, safety coefficient is high.
The operating process of the present invention：
1st, workpiece, which is installed, fixes
Supporting test fixture 14 is selected according to subject workpiece.Subject workpiece work is fixed on by test fixture 14 to put down
On platform 2.Fig. 1 is by test specimen（Optical axis and linear bearing）Test fixture 14 and measured piece in 10, Fig. 2（Leading screw and nut）11.
2nd, manual test
By survey tools such as three coordinates, it is adjusted to reach test requirements document precision by the position of the X Y Z-directions of test specimen.Move manually
Dynamic or rotation answers smooth without jam phenomenon by test specimen.
3rd, the selection and connection of drive system
Type of drive is used according to by test specimen selection, i.e., linear reciprocation drive system module is selected to linear reciprocation product testing, seen
Shown in Fig. 1；To being straight reciprocating motion experiment selection rotational alignment reciprocating drive component by convert rotational motion, Fig. 2 is seen
It is shown.The component of selection is attached.
4th, load is increased
Selection load connecting plate is required according to test technology（Connecting plate 10 in connecting plate 13 in Fig. 1, Fig. 2）.Connecting plate and quilt
After the connection of trial work part is upper, counterweight is increased and decreased according to technological requirement on connecting plate（It is counterweight 12 in Fig. 1, is counterweight 9 in Fig. 2）To examination
Required value is tested, counterweight is locked.
5th, experimental test
Selected according to by test specimen using the different test operation interface of type of drive different choice, i.e., to linear reciprocation product testing
Choosing " linear reciprocation drive system tests interface ", to being straight reciprocating motion experiment selection " rotational alignment by convert rotational motion
Reciprocating drive tests interface ".
According to test technology to by the speed of test specimen, displacement, loading demands and power/torque limiting requirement, in man-machine interface
Input instruction, is carried out by the fatigue test of test specimen.
6th, result is generated
After the completion of experiment, equipment can automatically generate test data.In addition, laboratory technician requires according to test technology, it is accomplished manually
The test of his index, such as gap, the surface abrasion status of part.
Claims (5)
1. a kind of fatigue life test machine of Linear transmission parts, it includes Working gantry, drive system, detecting system, negative
Loading system, test fixture and measured piece.
2. a kind of fatigue life test machine of Linear transmission parts according to claim 1, it is characterised in that aluminium section bar machine
Frame is made up of aluminum alloy industrial profile, and fixed intensity with ground base, taking into full account stand during the design of frame and just
Degree, reduces vibration during experiment as far as possible, and then reduces the influence to result of the test, and mounting platform reaches that JB/T7974-1999 is marked
It is accurate 1 grade；On the other hand as versatility platform, the mounting hole above it will use cross-species transferability more, make it more easily
It is connected with a variety of test fixtures.
3. a kind of fatigue life test machine of Linear transmission parts according to claim 1, it is characterised in that have two kinds of drives
Dynamic system, the first drive system to linear reciprocation product testing is another to being linear reciprocation fortune by convert rotational motion
Dynamic drive system.
4. a kind of fatigue life test machine of Linear transmission parts according to claim 1, it is characterised in that measuring system
With using two kinds of forms, the first measuring system to linear reciprocation product testing, measuring system be by laser displacement sensor,
Constituted with force snesor, the force value that force snesor detection is acted on sliding block, displacement transducer is used to detect measured piece（Optical axis and
Linear bearing）Shift value, displacement and force value curve can be formed by controller, force snesor uses three-axis sensor, enters
And the force value change for gathering three directions exactly is analyzed, and the force value with try hard to keep protective function, i.e. testpieces reaches
When reaching the standard grade with offline value of setting, equipment log, stopping experiment, and alarm；It is another to by convert rotational motion
For the measuring system of straight reciprocating motion, measuring system is made up of torque sensor and laser displacement sensor, moment of torsion sensor
The torque value acted on leading screw 11 is detected, displacement transducer is used to detect measured piece（Leading screw and nut）Mobile shift value,
Displacement and torque value curve can be formed by controller, and the torque value with torsion protection function, i.e. testpieces reaches
When reaching the standard grade with offline value of setting, equipment log, stopping experiment, and alarm.
5. a kind of fatigue life test machine of Linear transmission parts according to claim 1, it is characterised in that the load
System has counterweight and connecting plate to constitute, and the load of workpiece is adjusted by increasing and decreasing counterweight, can hold subject part by connecting plate
By vertical load or partial load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610129774.3A CN107167312A (en) | 2016-03-08 | 2016-03-08 | A kind of Linear transmission product fatigue life test machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610129774.3A CN107167312A (en) | 2016-03-08 | 2016-03-08 | A kind of Linear transmission product fatigue life test machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107167312A true CN107167312A (en) | 2017-09-15 |
Family
ID=59848763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610129774.3A Pending CN107167312A (en) | 2016-03-08 | 2016-03-08 | A kind of Linear transmission product fatigue life test machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN107167312A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111458128A (en) * | 2020-04-26 | 2020-07-28 | 宁波大榭开发区天正模具有限公司 | Detection equipment for service life of push rod of die casting die |
| CN113155006A (en) * | 2021-05-17 | 2021-07-23 | 长沙理工大学 | Slider position appearance measuring platform based on capacitance displacement sensor principle |
| CN113155449A (en) * | 2021-05-17 | 2021-07-23 | 长沙理工大学 | Non-contact moving pair dynamics experiment platform |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102620929A (en) * | 2012-03-15 | 2012-08-01 | 南京理工大学 | Device and method for testing precision retaining ability of ball screw assembly |
| CN202757762U (en) * | 2012-07-10 | 2013-02-27 | 金新民 | Eccentric wheel mechanism used for stay cable endurance test-bed |
| CN104502097A (en) * | 2015-01-08 | 2015-04-08 | 山东博特精工股份有限公司 | Ball screw pair electric coupling servo loading device |
| CN204612926U (en) * | 2015-05-08 | 2015-09-02 | 天津海特传动机械有限公司 | A kind of ball lead screw auxiliary ran machine |
-
2016
- 2016-03-08 CN CN201610129774.3A patent/CN107167312A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102620929A (en) * | 2012-03-15 | 2012-08-01 | 南京理工大学 | Device and method for testing precision retaining ability of ball screw assembly |
| CN202757762U (en) * | 2012-07-10 | 2013-02-27 | 金新民 | Eccentric wheel mechanism used for stay cable endurance test-bed |
| CN104502097A (en) * | 2015-01-08 | 2015-04-08 | 山东博特精工股份有限公司 | Ball screw pair electric coupling servo loading device |
| CN204612926U (en) * | 2015-05-08 | 2015-09-02 | 天津海特传动机械有限公司 | A kind of ball lead screw auxiliary ran machine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111458128A (en) * | 2020-04-26 | 2020-07-28 | 宁波大榭开发区天正模具有限公司 | Detection equipment for service life of push rod of die casting die |
| CN113155006A (en) * | 2021-05-17 | 2021-07-23 | 长沙理工大学 | Slider position appearance measuring platform based on capacitance displacement sensor principle |
| CN113155449A (en) * | 2021-05-17 | 2021-07-23 | 长沙理工大学 | Non-contact moving pair dynamics experiment platform |
| CN113155006B (en) * | 2021-05-17 | 2022-06-07 | 长沙理工大学 | Slider position appearance measuring platform based on capacitance displacement sensor principle |
| CN113155449B (en) * | 2021-05-17 | 2022-06-07 | 长沙理工大学 | Non-contact sliding pair dynamics experiment platform |
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Application publication date: 20170915 |