CN106248015A - The three-coordinates measuring machine measurement axis of carbon fiber invar combinative structure and manufacture method - Google Patents
The three-coordinates measuring machine measurement axis of carbon fiber invar combinative structure and manufacture method Download PDFInfo
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- CN106248015A CN106248015A CN201610738028.4A CN201610738028A CN106248015A CN 106248015 A CN106248015 A CN 106248015A CN 201610738028 A CN201610738028 A CN 201610738028A CN 106248015 A CN106248015 A CN 106248015A
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- Prior art keywords
- carbon fiber
- invar
- shell
- measurement axis
- internal layer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/04—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
Abstract
The three-coordinates measuring machine measurement axis of carbon fiber invar combinative structure and manufacture method.The invention discloses the three-coordinates measuring machine measurement axis of a kind of carbon fiber invar combinative structure, including shell and internal layer, described shell is made up of invar, shell wraps internal layer, internal layer is made up of carbon fiber, and internal carbon fibers is formed with shell invar co-curing by High Temperature High Pressure, is provided with several connectors on internal layer, connector needs mainly due to the external interface of three-dimensional coordinates measurement axle, can strengthen the bonding strength of shell and internal layer through-thickness simultaneously.The three-coordinates measuring machine measurement axis of the carbon fiber invar combinative structure of the present invention, in the case of not changing size, increases intensity and alleviates weight, reduces the impaired measurement axis deformation caused with inertia force of measuring basis that measurement axis causes due to thermal expansion.
Description
Technical field
The present invention relates to three-coordinates measuring machine measurement axis and the manufacture method of carbon fiber invar combinative structure, belong to three coordinates
The making field of measuring instrument.
Background technology
Three-coordinates measuring machine is one of conventional measuring instrument, and it can measure some common measurements quickly and easily
The accessory size parameter that instrument cannot record.The measurement axis of existing three-dimensional coordinates measurement axle is mostly made up of aluminum alloy materials,
Owing to aluminum alloy materials thermal coefficient of expansion is big, general measure axle after using several years, the measuring basis grating of measurement axis
Chi will be impaired, and precision changes.Therefore, the impaired problem of precision how overcoming measurement axis becomes the most urgently to be resolved hurrily asking
Topic.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of carbon fiber invar combination knot
The three-coordinates measuring machine measurement axis of structure and manufacture method, in the case of not changing size, increase the intensity of axle and alleviate
The weight of axle, reduces the impaired measurement axis deformation caused with inertia force of measuring basis that measurement axis causes due to thermal expansion.
Technical scheme: for solving above-mentioned technical problem, three coordinates of a kind of carbon fiber invar combinative structure of the present invention are surveyed
Amount instrument measurement axis, including shell and internal layer, described shell is made up of invar, and shell wraps internal layer, and internal layer is made up of carbon fiber,
Internal carbon fibers is formed with shell invar co-curing by High Temperature High Pressure, is provided with several connectors, connector on internal layer
External interface mainly due to three-dimensional coordinates measurement axle needs, and can strengthen shell strong with the connection of internal layer through-thickness simultaneously
Degree.
As preferably, the thickness of described shell is 2-5mm, and the thickness of internal layer is 3-6mm, in the situation that gross thickness is certain
Under, internal layer thickness is more than outer casing thickness.
As preferably, the chemical composition of described invar is nickel 36%, ferrum 63.8%, carbon 0.2%.
As preferably, described carbon fiber is polyacrylonitrile-based carbon fibre, material trademark select M40J and more than, laying direction
Use 0 °, ± 30 °, 0 °, ± 45 ° of over-over modes, every layer thickness 0.1mm.
The manufacture method of the three-coordinates measuring machine measurement axis of a kind of above-mentioned carbon fiber invar combinative structure, including following step
Rapid:
(1) shell invar mould processing, first carries out half essence Milling Process and polish, then carries out modifier treatment, tightly
Then refining profile, being as the criterion until meeting design requirement；
(2) carbon fiber preforming, by carbon fiber according to 0 °, ± 30 °, 0 °, ± the angle of 45 ° be alternately laid on interior mould,
On interior mould outer surface, smear uniform releasing agent before lay, and it is thin to wrap up a strata tetrafluoroethene on the outer surface of interior mould
Film, uses setting agent to shape every 500mm distance in laid course between carbon fiber layer, simultaneously control ambient temperature 25 ° ±
2 °, it is ensured that there is the most viscous feel on laid course carbon cloth surface, after lay completes, smears uniform J133 glue at carbon fiber surface
Glutinous agent, hangs 3～5 minutes, and after lay, size is advisable can just enter shell invar mould, can be smaller, but can not be more than
External mold internal diameter in order to avoid occurring fiber fold or angle change to affect performance when preform is filled in external mold；
(3) before solidification, interior mould is taken out, note pattern draft direction, it is ensured that extract out from microcephaly；
(4) being placed in shell invar mould by whole carbon fiber, shell invar both mold ends covers end cap, and entirety enters hot pressing
Tank, and stay wherein and install pressure-air air intake installation on an end cap of air inlet；
(5) check sealing, carry out intensification fixed line according to the corresponding carbon fiber trade mark and resin system, general the least 2
Time interior be heated to 120 °, holding mould inner pressure is 2Kg, is then heated to 165 ° in 2 hours, keeps pressure in 5kg, insulation
Pressurize 6 hours, is then shut off autoclave power supply and air pressure switch, to be cooled to taking-up during room temperature；
(6) axle surface is refined, and stays 0.2mm allowance；
(7) dozen connecting hole is joined according to the installation diagram of axle, it is ensured that hole and surface perpendicularity are less than 0.01mm；
(8) embedded part surface smear J133 adhesive surface anodization processed, is embedded in after then using locating template
On axle, and entirety enters baking oven fixed line, keeps temperature 120 °, and more than 4 hours persistent period, less than 8 hours；
(9) final smoothing, entirety meets design requirement, it is ensured that the accuracy of form and position is better than 0.005mm/1000mm.
Beneficial effect: the three-coordinates measuring machine measurement axis of the carbon fiber invar combinative structure of the present invention, is not changing size
In the case of, increase intensity and alleviate weight, reduce the measuring basis that measurement axis causes due to thermal expansion impaired and used
Property power cause measurement axis deformation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the laying schematic diagram of carbon fiber in Fig. 1.
Detailed description of the invention
As depicted in figs. 1 and 2, the three-coordinates measuring machine measurement axis of a kind of carbon fiber invar combinative structure of the present invention, bag
Including shell 2 and internal layer 1, described shell 2 is made up of invar, and shell 2 wraps internal layer 1, and internal layer 1 is made up of carbon fiber, internal carbon
Fiber is formed with shell invar co-curing by High Temperature High Pressure, is provided with several connectors 3 on internal layer 1, and connector 3 is main
It is the external interface needs due to three-dimensional coordinates measurement axle, shell 2 can be strengthened strong with the connection of internal layer 1 through-thickness simultaneously
Degree.
In the present invention, the thickness of described shell 2 is 2-5mm, and the thickness of internal layer 1 is 3-6mm, in the feelings that gross thickness is certain
Under condition, internal layer 1 thickness is more than shell 2 thickness.The chemical composition of described invar is nickel 36%, ferrum 63.8%, carbon 0.2%, utilizes
The feature that the invar coefficient of expansion is little, greatly strengthens the intensity of measurement axis.
In the present invention, carbon fiber is polyacrylonitrile-based carbon fibre, material trademark selection M40J, laying direction employing 0 °,
± 30 °, 0 °, ± 45 ° of over-over modes, i.e. 0 °, 30 ° ,-30 °, 0 °, 45 ° ,-45 ° of over-over modes, it is ensured that the bending stiffness of axle, make
Obtain maximum rigidity along principal direction of stress；The directional angle design of laying make axle work process is born groundwork load with
And the direction of motion dynamic loading has the biggest rigidity, and other directions are due to stress hardly, thus permissible when designing
Less consideration, thus compares isotropic metal material, more the usefulness of material can be played at the direction needed and position,
Thus product has higher specific strength, specific stiffness, very light in weight.Every layer thickness 0.1mm, uses the mode of paved in multi-layers, for
Farthest utilize carbon fiber high-performance in the axial direction, according to measurement axis Impact direction, i.e. gravity and axial pulling force,
Selected carbon fiber lay angle is 0 °.Every layer thickness is 0.1mm, totally 40 layers, selects the polyacrylonitrile-based carbon fibre of M40J to have
High intensity and high tensile modulus drastically increase the intensity of measurement axis, and polyacrylonitrile-based carbon fibre material has relatively low simultaneously
Density, alleviates the weight of measurement axis.
In the present invention, the external dimensions of design three-coordinates measuring machine measurement axis is 140mm*140mm, the thickness of shell 2
For 2mm, the thickness of internal layer 1 is 4mm, and the accuracy of form and position is better than 0.005mm/1000mm.
The manufacture method of the three-coordinates measuring machine measurement axis of a kind of above-mentioned carbon fiber invar combinative structure, including following step
Rapid:
(1) shell invar mould processing, first carries out half essence Milling Process and polish, then carries out modifier treatment, tightly
Then profile is refined, until the external dimensions of shell invar mould is 140mm*140mm, mould in then selecting suitably, interior mould
Exterior surface dimension be 128mm*128mm；
(2) carbon fiber preforming, as in figure 2 it is shown, by carbon fiber according to 0 °, ± 30 °, 0 °, ± the angle of 45 ° replace lay
On interior mould, on interior mould outer surface, smear uniform releasing agent before lay, and on the outer surface of interior mould, wrap up a strata four
Fluoroethylene film, uses setting agent to shape between carbon fiber layer every 500mm distance in laid course, controls ambient temperature simultaneously
At 25 ° ± 2 °, it is ensured that there is the most viscous feel on laid course carbon cloth surface, after lay completes, smears all at carbon fiber surface
Even J133 adhesive, hangs 3～5 minutes, and after lay, size is advisable can just enter shell invar mould, can be smaller, but
Can not be more than external mold internal diameter in order to avoid occur fiber fold or angle change to affect performance when preform is filled in external mold；
(3) before solidification, interior mould is taken out, note pattern draft direction, it is ensured that extract out from microcephaly；
(4) being placed in shell invar mould by whole carbon fiber, shell invar both mold ends covers end cap, and entirety enters hot pressing
Tank, and stay one end of air inlet to install pressure-air air intake installation wherein；
(5) check sealing, carry out intensification fixed line according to the corresponding carbon fiber trade mark and resin system, general the least 2
Time interior be heated to 120 °, holding mould inner pressure is 2Kg, is then heated to 165 ° in 2 hours, keeps pressure in 5kg, insulation
Pressurize 6 hours, is then shut off autoclave power supply and air pressure switch, to be cooled to taking-up during room temperature；
(6) size and the flatness of axle are detected；
(7) axle surface is refined, and stays 0.2mm allowance；
(8) dozen connecting hole is joined according to the installation diagram of axle, it is ensured that hole and surface perpendicularity are less than 0.01mm；
(9) embedded part surface smear J133 adhesive surface anodization processed, is embedded in after then using locating template
On axle, and entirety enters baking oven fixed line, keeps temperature 120 °, and more than 4 hours persistent period, less than 8 hours；
(10) final smoothing, entirety meets design requirement, it is ensured that the accuracy of form and position is better than 0.005mm/1000mm.
In the present invention, the mould of shell 2 is actually a part for product, so on the one hand can ensure that the de-of product
Mould is fairly simple, and will not be because of the quality affecting product during de-external mold；On the other hand it is the surface matter of product itself
Amount requires the highest, and so product surface precision that can ensure that, the surface accuracy ratio of conventional method carbon fiber is relatively low, is not inconsistent
Close the requirement of this device.
Because product is diameter 140mm, length is rectangular pipe more than 3 meters, and here face paving carbon fiber difficulty is the biggest.So we
By prefabricated carbon fiber on interior mould, first preforming on interior mould, more whole fill in, then new mould is taken out, then two
End separately envelope is got up, and then pressure-air, last whole inlet box, it is ensured that product quality are filled in the inside.
Mould and product will be made one piece, on the one hand play the high machinability of metal material；On the other hand send out
Wave the high specific strength of carbon fibre material, low-density characteristic, reach existing external high accuracy attractive in appearance, have again the high-strength of inherence
Degree and the advantage of lightweight.
The above is only the preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For Yuan, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (5)
1. the three-coordinates measuring machine measurement axis of a carbon fiber invar combinative structure, it is characterised in that: include shell and internal layer, institute
Stating shell to be made up of invar, shell wraps internal layer, and internal layer is made up of carbon fiber, is provided with several connectors on internal layer.
The three-coordinates measuring machine measurement axis of carbon fiber invar combinative structure the most according to claim 1, it is characterised in that: institute
The thickness stating shell is 2-5mm, and the thickness of internal layer is 3-6mm, and in the case of gross thickness is certain, internal layer thickness is thick more than shell
Degree.
The three-coordinates measuring machine measurement axis of carbon fiber invar combinative structure the most according to claim 1, it is characterised in that: institute
The chemical composition stating invar is nickel 36%, ferrum 63.8%, carbon 0.2%.
The three-coordinates measuring machine measurement axis of carbon fiber invar combinative structure the most according to claim 1, it is characterised in that: institute
Stating carbon fiber is polyacrylonitrile-based carbon fibre, material trademark select M40J and more than, laying direction use 0 °, ± 30 °, 0 °, ±
45 ° of over-over modes, every layer thickness 0.1mm.
5. the three-coordinates measuring machine measurement axis of the carbon fiber invar combinative structure as described in any one of Claims 1-4
Manufacture method, it is characterised in that comprise the following steps:
(1) shell invar mould processing, first carries out half essence Milling Process and polish, then carries out modifier treatment, and then
Fine grinding profile, is as the criterion until meeting design requirement；
(2) carbon fiber preforming, by carbon fiber according to 0 °, ± 30 °, 0 °, ± the angle of 45 ° be alternately laid on interior mould, lay
On interior mould outer surface, smear uniform releasing agent before, and on the outer surface of interior mould, wrap up one layer of polytetrafluoroethylene film, paving
Using setting agent to shape between carbon fiber layer every 500mm distance during putting, control ambient temperature is at 25 ° ± 2 ° simultaneously, paving
After discharging into, smear uniform J133 adhesive at carbon fiber surface, hang 3～5 minutes；
(3) before solidification, interior mould is taken out, note pattern draft direction, it is ensured that extract out from microcephaly；
(4) being placed in shell invar mould by whole carbon fiber, shell invar both mold ends covers end cap, and entirety enters autoclave,
And stay wherein and install pressure-air air intake installation on an end cap of air inlet；
(5) checking sealing, be first heated to 120 ° in 2 hours, holding mould inner pressure is 2Kg, then heats in 2 hours
To 165 °, keep pressure at 5kg, heat-insulation pressure keeping 6 hours, be then shut off autoclave power supply and air pressure switch, to be cooled arrive
Take out during room temperature；
(6) axle surface is refined, and stays 0.2mm allowance；
(7) dozen connecting hole is joined according to the installation diagram of axle, it is ensured that hole and surface perpendicularity are less than 0.01mm；
(8) embedded part surface smear J133 adhesive surface anodization processed, is then embedded on axle, and entirety enters baking oven admittedly
Words, keep temperature 120 °, and more than 4 hours persistent period, less than 8 hours；
(9) final smoothing, entirety meets design requirement.
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| CN201610738028.4A CN106248015B (en) | 2016-08-26 | 2016-08-26 | The three-coordinates measuring machine measurement axis and production method of carbon fiber invar composite structure |
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