CN109186899A - A kind of lathe saddle vertical radial Static stiffness measuring device and its measurement method - Google Patents
A kind of lathe saddle vertical radial Static stiffness measuring device and its measurement method Download PDFInfo
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- CN109186899A CN109186899A CN201810706082.XA CN201810706082A CN109186899A CN 109186899 A CN109186899 A CN 109186899A CN 201810706082 A CN201810706082 A CN 201810706082A CN 109186899 A CN109186899 A CN 109186899A
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- Prior art keywords
- lathe saddle
- vertical radial
- static stiffness
- lathe
- measuring device
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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
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
- G01M5/005—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems
Abstract
The invention discloses a kind of lathe saddle vertical radial Static stiffness measuring devices and its measurement method.The vertical radial Static stiffness measuring device of lathe saddle includes: force snesor, applied force element and detector for displacement measuring, the force snesor has opposite top and bottom, the lower end of the force snesor is fixedly installed, the upper end of the force snesor is connect with the lower end of the applied force element, the upper end of the applied force element and the side of lathe saddle connect, lathe saddle fixed setting；The applied force element is used to apply to the vertical direction of the side of lathe saddle load, and the force snesor applies load data for obtaining, and the detector for displacement measuring is used to measure the vertical radial-deformation of lathe saddle.The vertical radial Static stiffness measuring device of above-mentioned lathe saddle can reduce a possibility that erroneous judgement of the vertical radial Static stiffness value of lathe saddle.
Description
Technical field
The present invention relates to machine tool functional component fundamental performance parameter the field of test technology more particularly to a kind of lathe saddle are perpendicular
Diameter to Static stiffness measuring device and its measurement method.
Background technique
Rigidity refers to the ability that material or structure resist flexible deformation in stress.Lathe rigidity, which refers to, installs knife on lathe
The component of tool and the component of installation workpiece resist the ability being deformed under external force, it is the master for evaluating lathe working performance
Want one of index.The rigidity that lathe is shown under different conditions be it is different, the rigidity showed in a dynamic state be dynamic
Rigidity, abbreviation dynamic stiffness；The rigidity showed in the quiescent state is static rigidity, abbreviation Static stiffness.
It is higher and higher to the static rigidity performance requirement of lathe with the extensive use of high-accuracy processing, lathe it is quiet just
Degree is an important factor for lathe guarantees geometric accuracy, while the geometric accuracy of lathe directly influences the essence of lathe process part
Degree.
The traditional measurement of static rigidity of lathe detection device is completely by virtue of experience, or theoretical, and erroneous judgement possibility is big, cannot
Meets the needs of precise measurement static rigidity of lathe.
Summary of the invention
For overcome the deficiencies in the prior art, one of the objects of the present invention is to provide a kind of vertical radial directions of lathe saddle
Static stiffness measuring device, a possibility that erroneous judgement of the vertical radial Static stiffness value of lathe saddle can be reduced.
An object of the present invention is implemented with the following technical solutions:
A kind of vertical radial Static stiffness measuring device of lathe saddle, comprising: force snesor, applied force element and displacement are surveyed
Instrument is measured, the force snesor has opposite top and bottom, and the lower end of the force snesor is fixedly installed, the force snesor
Upper end connect with the lower end of the applied force element, the side of the upper end of the applied force element and lathe saddle connects, vehicle
Bed knife rest fixed setting；
The applied force element is used to apply load to the vertical direction of the side of lathe saddle, and the force snesor is used for
It obtains and applies load data, the detector for displacement measuring is used to measure the vertical radial-deformation of lathe saddle.
Further, which is characterized in that further include the first mounting base, the lower end of first mounting base connects the application
The upper end of power element, the side of the side connection lathe saddle of first mounting base.
Further, which is characterized in that further include the second mounting base, the lower end connection of the force snesor second peace
The upper end of seat is filled, the lower end of second mounting base is fixed on lathe.
Further, which is characterized in that the detector for displacement measuring is set to the lower end of lathe saddle.
Further, which is characterized in that the applied force element is air-driven type applied force element, hydraulic applied force element
Or screw-type applied force element.
Further, which is characterized in that the detector for displacement measuring is current vortex sensor.
The second object of the present invention is to provide a kind of measurement side of vertical radial Static stiffness measuring device of lathe saddle
Method.
The second object of the present invention is implemented with the following technical solutions:
The measurement method of the vertical radial Static stiffness measuring device of lathe saddle described above, by applied force element to
The vertical direction of the side of lathe saddle applies load, then is obtained by force snesor and apply load data F；It is surveyed followed by displacement
Amount instrument measures and obtains the vertical radial deflection Y of lathe saddle；Finally obtain the vertical radial Static stiffness of lathe saddle
Compared with prior art, the beneficial effects of the present invention are:
The vertical radial Static stiffness measuring device of lathe saddle of the invention reduces the possibility of the erroneous judgement of Static stiffness value
Property, meet the demand of the vertical radial Static stiffness of precise measurement lathe saddle.
Detailed description of the invention
Fig. 1 is the perspective view of the vertical radial Static stiffness measuring device of lathe saddle of the embodiment of the present invention.
In figure: 10, force snesor；20, applied force element；30, detector for displacement measuring；40, the first mounting base；50, the second peace
Fill seat；60, lathe saddle；70, slide saddle member.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the present invention, it should be noted that not
Under the premise of conflicting, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
Referring to Fig.1, the vertical radial Static stiffness measuring device of lathe saddle is suitable for lathe, vertical machining centre, bedroom
The numerically-controlled machine tool complete machine Static stiffness of the types such as machining center, gantry machining center detects.Especially oblique lathe bed T-type cutter rack lathe,
The vertical radial Static stiffness testing result of lathe saddle is to evaluate one of the main indicator of machine tool rigidity property.
The vertical radial Static stiffness measuring device of lathe saddle includes force snesor 10, applied force element 20 and displacement measurement
Instrument 30, force snesor 10 have opposite top and bottom, and the lower end of force snesor 10 is fixedly installed, the upper end of force snesor 10
It is connect with the lower end of applied force element 20, the upper end of applied force element 20 is connect with the side of lathe saddle 60, lathe saddle 60
Fixed setting, force snesor 10 and lathe saddle 60 are all fixed settings to guarantee that Static stiffness value does not have deviation.Applied force member
Part 20 is used to apply load to the vertical direction of the side of lathe saddle 60, and force snesor 10 applies load data for obtaining,
The lower end that detector for displacement measuring 30 is set to lathe saddle 60 is used to measure the vertical radial-deformation of lathe saddle 60, and lathe saddle is perpendicular
Diameter to Static stiffness can be expressed as apply load data and vertical radial-deformation ratio.In the embodiment of the present invention, apply
Reinforcing element 20 is air-driven type applied force element 20, hydraulic applied force element 20 or screw-type applied force element 20, and displacement is surveyed
Amount instrument 30 is current vortex sensor, in other embodiments, detector for displacement measuring 30 or amesdial.The embodiment of the present invention
The vertical radial Static stiffness measuring device of lathe saddle can effectively measure the vertical radial Static stiffness of lathe saddle, reduce erroneous judgement
A possibility that disconnected.
The vertical radial Static stiffness measuring device of lathe saddle further includes the first mounting base 40, the lower end of the first mounting base 40
The upper end of applied force element 20, the side of the side connection lathe saddle 60 of the first mounting base 40 are connected, the first mounting base 40 adds
Consolidate the connection of the side of applied force element 20 and lathe saddle 60, prevents size, direction and the position of loading force from shifting,
To guarantee the accuracy of measurement result.
Preferably, the vertical radial Static stiffness measuring device of lathe saddle further includes the second mounting base 50, force snesor 10
Lower end connect the upper end of the second mounting base 50, the lower end of the second mounting base 50 is fixed on lathe, and the second mounting base 50 is reinforced
Connection of the lower end of force snesor 10 on lathe, prevents size, direction and the position of loading force from shifting, to guarantee
The accuracy of measurement result.Specifically, the second mounting base 50 is fixed on the slide saddle member 70 on lathe, and slide saddle member 70 is located at vehicle
The lower end of bed knife rest 60.
The measurement method of the vertical radial Static stiffness measuring device of lathe saddle are as follows: by applied force element 20 to lathe tool
The vertical direction of the side of frame 60 applies load, then is obtained by force snesor 10 and apply load data F；Followed by displacement measurement
Instrument 30 measures and obtains the vertical radial deflection Y of lathe saddle 60；Finally show that the vertical radial direction of lathe saddle 60 is quiet just
DegreeThe possibility of the measurement method erroneous judgement is small.
To sum up, the vertical radial Static stiffness measuring device of lathe saddle of the invention improves the vertical radial direction of lathe saddle
Measurement accuracy, a possibility that reducing erroneous judgement, can effectively measure the vertical radial Static stiffness of lathe saddle, be able to satisfy essence
The really demand of measurement static rigidity of lathe.
It will be apparent to those skilled in the art that can make various other according to the above description of the technical scheme and ideas
Corresponding change and deformation, and all these changes and deformation all should belong to the protection scope of the claims in the present invention
Within.
Claims (7)
1. a kind of vertical radial Static stiffness measuring device of lathe saddle characterized by comprising force snesor, applied force member
Part and detector for displacement measuring, the force snesor have opposite top and bottom, and the lower end of the force snesor is fixedly installed, institute
The upper end for stating force snesor is connect with the lower end of the applied force element, the upper end of the applied force element and the side of lathe saddle
Face connection, lathe saddle fixed setting；
The applied force element is used to apply load to the vertical direction of the side of lathe saddle, and the force snesor is for obtaining
Apply load data, the detector for displacement measuring is used to measure the vertical radial-deformation of lathe saddle.
2. the vertical radial Static stiffness measuring device of lathe saddle according to claim 1, which is characterized in that further include the
One mounting base, the lower end of first mounting base connect the upper end of the applied force element, and the side of first mounting base connects
Connect the side of lathe saddle.
3. the vertical radial Static stiffness measuring device of lathe saddle according to claim 1, which is characterized in that further include the
Two mounting bases, the lower end of the force snesor connect the upper end of second mounting base, and the lower end of second mounting base is fixed
In on lathe.
4. the vertical radial Static stiffness measuring device of lathe saddle according to claim 1, which is characterized in that the displacement
Measuring instrument is set to the lower end of lathe saddle.
5. the vertical radial Static stiffness measuring device of lathe saddle according to claim 1, which is characterized in that the application
Power element is air-driven type applied force element, hydraulic applied force element or screw-type applied force element.
6. the vertical radial Static stiffness measuring device of lathe saddle according to claim 1, which is characterized in that the displacement
Measuring instrument is current vortex sensor.
7. a kind of measurement of the vertical radial Static stiffness measuring device of lathe saddle as described in claim 1 to 6 any one
Method, which is characterized in that load is applied to the vertical direction of the side of lathe saddle by applied force element, then by force snesor
It obtains and applies load data F；The vertical radial deflection Y of lathe saddle is measured and obtained followed by detector for displacement measuring；Most
The vertical radial Static stiffness of lathe saddle is obtained afterwards
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810706082.XA CN109186899A (en) | 2018-06-28 | 2018-06-28 | A kind of lathe saddle vertical radial Static stiffness measuring device and its measurement method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810706082.XA CN109186899A (en) | 2018-06-28 | 2018-06-28 | A kind of lathe saddle vertical radial Static stiffness measuring device and its measurement method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109668701A (en) * | 2019-01-28 | 2019-04-23 | 青岛农业大学 | A kind of working system measurement static rigidity of lathe method |
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| CN2120107U (en) * | 1992-04-05 | 1992-10-28 | 中国矿业大学 | Digital display jack |
| CN103846460A (en) * | 2014-03-17 | 2014-06-11 | 党金行 | Servo direct drive tool changing type machine tool knife rest |
| CN104076741A (en) * | 2014-07-02 | 2014-10-01 | 沈阳机床(集团)有限责任公司 | Servo tool rest reliability testing system and method for conducting testing with same |
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| CB02 | Change of applicant information |
Address after: No. 69, Xunyangjiang Road, Tongan, Suzhou High-tech Zone, Jiangsu Province Applicant after: Newway CNC Equipment (Suzhou) Co., Ltd. Address before: No. 69, Xunyangjiang Road, Tongan, Suzhou High-tech Zone, Jiangsu Province, 215000 Applicant before: Neway CNC Equipment (Suzhou) Co., Ltd. |
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Application publication date: 20190111 |
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| RJ01 | Rejection of invention patent application after publication |