CN110243284A - A kind of high temp objects spatial digitizer and its working method - Google Patents
A kind of high temp objects spatial digitizer and its working method Download PDFInfo
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- CN110243284A CN110243284A CN201910516115.9A CN201910516115A CN110243284A CN 110243284 A CN110243284 A CN 110243284A CN 201910516115 A CN201910516115 A CN 201910516115A CN 110243284 A CN110243284 A CN 110243284A
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- cooling
- gauge head
- air inlet
- temperature
- spatial digitizer
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
Abstract
The invention discloses a kind of high temp objects spatial digitizer and its working methods, belong to high temp objects three-dimensional measurement field, the scanner includes gauge head and cooling control box, gauge head includes seal casinghousing, escape pipe, air inlet pipe, and is all set in projector, industrial camera, temperature sensor and the first control panel inside the seal casinghousing；Cooling control box includes shell, and is arranged in the intracorporal cooling assembly of the shell and the second control panel.Additionally provide its working method.The present invention, which reduces high temperature source using split-type design, influences the precision of measurement component；Cooling assembly is set, and to cooling down in spatial digitizer seal casinghousing, influence caused by reducing the problems such as high temperature goes offline projector brightness decaying and camera improves the scanning accuracy and discrimination of spatial digitizer, to adapt it to high-temperature work environment；Combine the adaptation for realizing spatial digitizer to hot environment by a variety of cooling methods.
Description
Technical field
The invention belongs to high temp objects three-dimensional measurement field, more particularly, to a kind of high temp objects spatial digitizer and
Its working method.
Background technique
At present in high temp objects fields of measurement, three-dimensional measurement technology based on computer vision quickly grows, has become
The measurement method of mainstream, the technology have the advantages that non-contact, precision is high, speed is fast and high resolution, gradually replaced slide calliper rule,
The low and dangerous conventional contact measurement method of gauge equally accurate, recent domestic correlative study unit go deep into it
It studies and has developed corresponding testing equipment, occurred ccd image mensuration, laser scanning method and structural light measurement method at present
Etc. a variety of high temp objects measurement methods based on computer vision.High temp objects three-dimensional measurement generallys use structural light measurement method,
Spatial digitizer is mounted on robot arm, robot arm drives spatial digitizer movement, in close-in measurement, throw
Shadow instrument captures the deformed grating on measured workpiece surface to measured workpiece projection grating, industrial camera.
The infra-red radiation of influence due to to(for) measuring instrument, existing three-dimensional scanning device are all unable to measure the condition of high temperature
The workpiece of (such as 1000 DEG C or more).(the patent Shen by taking the spatial digitizer of Hangzhou Xianlin Three-dimensional Science Co., Ltd as an example
Please number: 201830087332.7), and outside there is no thermal protection measure, also without be directed to camera and projector protective device, only
It can measure under normal temperature conditions.Other spatial digitizers such as Shenzhen building blocks Yi Da science and technology Co., Ltd (patent Shen
Please number: 201810297390.1) and magnificent light three-dimensional (Tianjin) Science and Technology Ltd. (number of patent application: 201710226341.4)
Spatial digitizer, their casing part also only play the role of supporting and fixing, and infra-red radiation can not be prevented to camera
Influence.
But the heat of high temperature source spontaneous radiation and strong light often cause projector brightness decaying and work in spatial digitizer
The problems such as the problems such as industry camera goes offline, the scanning accuracy and discrimination in turn resulting in spatial digitizer reduce.In addition, measure field
Often there are the unfavorable factors such as dust and vibration, measurement accuracy can be seriously affected in bad environments.
Therefore, to solve the above problems, it is necessary to study under a kind of hot environment can high-acruracy survey spatial digitizer.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention provides a kind of high temp objects spatial digitizer and
Its working method, its purpose is to provide a kind of spatial digitizers that can adapt to hot environment, to 1000 DEG C or more of height
Warm workpiece can also normal high-acruracy survey, thus solving existing spatial digitizer, sensitive for damages causes to scan under high temperature environment
Precision and/or the low technical problem of discrimination.
To achieve the above object, according to one aspect of the present invention, a kind of high temp objects spatial digitizer is provided, it is special
Sign is, including gauge head and cooling control box, wherein
The gauge head includes seal casinghousing, escape pipe, air inlet pipe, robot pipeline packet, switching fixing head, and is respectively provided with
Projector, industrial camera, temperature sensor and the first control panel inside the seal casinghousing；Wherein,
The seal casinghousing is equipped with for disposing the projector lens hole of the projector lens, for disposing the work
Camera lens hole, air inlet, gas outlet, sealing clamping ring and the infrared cutoff piece of industry camera lens, wherein the projector lens
The infrared cutoff piece is equipped on hole and the camera lens hole, each infrared cutoff piece circumference is provided with the sealing pressure
Enclose the sealing to realize the projector lens hole and the camera lens hole；The air inlet is connected to the air inlet pipe, institute
Gas outlet is stated to be connected to the escape pipe；The inside of the seal casinghousing is relative to its hull outside atmospheric sealing；The sealing
Inner walls post thermal isolation film；The industrial camera is equipped with cooling fin；One end of the escape pipe is arranged in the capsul
Body interior side, the other end are connected to the hot gas air intake of the cooling control box；One end of the air inlet pipe is arranged in described
The other side inside seal casinghousing, the other end are connected to the cold air gas outlet of the cooling control box；
The projector, industrial camera and temperature sensor are electrically connected with first control panel, pass through described first
Control panel realizes the communication with the cooling control box；
The cooling control box includes shell, and is arranged in the intracorporal cooling assembly of the shell and the second control panel, institute
It states the second control panel to be electrically connected with first control panel, the hot gas air intake of the cooling assembly is described with the escape pipe
Other end connection, the cold air gas outlet of the cooling assembly is connected to the other end of the air inlet pipe.
Preferably, the cooling assembly includes temperature difference piece refrigeration module, finned cooler, gas booster pump and ventilation
Net；Wherein, the air inlet of the gas booster pump is connected to the other end of the escape pipe, and the gas booster pump goes out
Port is connected to the air inlet of the finned cooler, the gas outlet of the finned cooler and temperature difference piece refrigeration mould
The cold chamber of block is connected to, and the cold chamber of the temperature difference piece refrigeration module is connected to the other end of the air inlet pipe；The ventilated net
Installation corresponds to the position of the periphery of the hot chamber of the temperature difference piece refrigeration module on the housing；
The temperature difference piece refrigeration module is coupled by one piece of N-type semiconductor and one piece of P-type semiconductor.
Preferably, there are two the industrial cameras, it is equipped with cooling fin thereon, hole, an industry are equipped on cooling fin
The hole on cooling fin on camera is used to place one end of the air inlet pipe, and the hole on cooling fin on another industrial camera is used
In the one end for placing the escape pipe.
Preferably, the gauge head further includes robot pipeline packet and switching fixing head, and the robot pipeline packet will be described
Escape pipe and air inlet pipe be rolled into it is a branch of after radially across the switching fixing head, and with the switching fixing head be connected；It is described
It is connected on the seal casinghousing below switching fixing head, is equipped with ring flange above for connecting robot arm.
Preferably, the switching fixing head includes flange chassis and fixing head；The one end on the flange chassis with it is described solid
The one end for determining head is fixedly connected, and the other end is for being fixed on robot arm；The fixing head is equipped with through-hole for wearing
The robot pipeline packet is crossed, the other end of the fixing head is fixed on the gauge head.
Preferably, the switching fixing head is connect with the robot pipeline packet in cross.
Preferably, the gauge head further includes power supply line and cable, is additionally provided with power interface and cable on the seal casinghousing
Interface；One end connection of the power supply line cooling control box, the other end successively pass through the constraint of the robot pipeline packet
First control panel is connected after with the power interface, by first control panel to the projector, industrial camera
Power supply is provided with temperature sensor；For connecting the cooling control box, the other end successively passes through described for one end of the cable
Connect first control panel after the constraint of robot pipeline packet and the cable interface, for realizing the gauge head with it is described
The communication of cooling control box.
It is another aspect of this invention to provide that a kind of working method based on above-mentioned high temp objects spatial digitizer is provided,
It is characterized in that, gauge head is placed in proximity suit and is mounted on robot arm, gauge head is driven closely by robot arm
The measured workpiece of ground shooting high temperature；Cooling control box is arranged in the position far from measured workpiece；
Cooling control box is passed to by the first control panel by the temperature of temperature sensor detection gauge head, and by temperature value,
Cooling control box is according to the temperature value selectively driving cooling assembly work；Hot gas passes through escape pipe and refrigeration train inside gauge head
The hot gas air intake of part enters inside cooling assembly, and cooling assembly exports cold air after cooling down to hot gas, and cold air is from cooling assembly
Cold air gas outlet is entered inside gauge head by air inlet pipe, is cooled down to gauge head, and circulation temperature lowering is until gauge head is down to set temperature；
The thermal isolation film of gauge head inner wall and external proximity suit carry out isolation cooling to gauge head simultaneously, on projector lens hole
Infrared cutoff piece carries out infrared isolation cooling to projector lens, and the infrared cutoff piece on camera lens hole carries out camera lens
Infrared isolation cooling；Cooling fin cools down to industrial camera；Combined by the above cooling method and realizes spatial digitizer in height
Normal work under warm environment.
Preferably, gauge head inside hot gas enters gas booster pump, gas by the air inlet of escape pipe and gas booster pump
Body booster pump makes low-pressure gas be converted into high pressure gas, realizes the gas circulation in gauge head and cooling control box, high-pressure hot gas quilt
It extracts out and blasts finned cooler and carry out first time cooling, the gas after primary cooling is blasted temperature difference piece by finned cooler
The cold chamber of refrigeration module carries out second exporting cold air after cooling down, and cold air is entered inside gauge head by air inlet pipe, is carried out to gauge head
Cooling, circulation temperature lowering is until gauge head is down to set temperature.
Preferably, one end of air inlet pipe is placed in the hole on the cooling fin on an industrial camera, by escape pipe
One end is placed in the hole on the cooling fin on another industrial camera, by this method, in conjunction with cooling fin, utilizes cold air high efficiency
Temperature on the cooling industrial camera in ground, the heat on industrial camera is quickly dispersed using escape pipe.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, can obtain down and show
Beneficial effect:
1, high temp objects spatial digitizer provided by the invention and working method, by main body that can be external in spatial digitizer
Component (including the second control panel and cooling assembly) is both placed in outside gauge head seal casinghousing, and design is independent cooling control box,
For cooling control box far from tested forging, reducing high temperature source influences the precision of measurement component, while mitigating gauge head weight, reduces
The load of robot arm significantly improves the sport efficiency of robot.By cooling assembly in spatial digitizer seal casinghousing
Cool down, influence caused by reducing the problems such as high temperature goes offline projector brightness decaying and camera improves 3-D scanning
The scanning accuracy and discrimination of instrument, to adapt it to high-temperature work environment；By posting thermal isolation film on gauge head inner wall, and will
Gauge head is placed in proximity suit, can isolate high temperature source, is conducted with utmostly reducing heat to gauge head；Pass through projector mirror
Infrared cutoff piece barrier infrared ray in head bore and camera lens hole passes through measurement form, avoids because caused by being taken in infrared ray
Temperature rises；Cooled down by cooling fin to industrial camera；Combined by the above cooling method and realizes spatial digitizer in height
Normal work under warm environment.
2, high temp objects spatial digitizer provided by the invention and working method turn low-pressure gas by gas booster pump
High pressure gas is turned to, realizes the gas circulation of gauge head and cooling control box；High-temperature gas passes through finned cooler and temperature difference system
Cold air is exported after the cooling twice of cold module to gauge head, the bulk temperature of gauge head is reduced, so recycles, and adapts to three dimensional probe, 3-D probe high
Warm environment.
3, high temp objects spatial digitizer provided by the invention and working method, the cold air after reducing temperature twice pass through gauge head
Air inlet pipe, which flows to cooling fin, makes the reduction of industrial camera temperature, and cold air passes through cooling fin again and flows to everywhere in seal box, and then reduces
The bulk temperature of gauge head；Hot gas is flowed out from cooling fin by escape pipe, accelerates the temperature for reducing industrial camera, and then reduce gauge head
Bulk temperature.
4, high temp objects spatial digitizer provided by the invention can going out gauge head by the way that robot pipeline packet is arranged
Tracheae, air inlet pipe, power supply line and cable are rolled into a branch of, prevent in robot arm rotation process, escape pipe, air inlet pipe,
Power supply line and cable are wound on robot arm, interfere robot arm rotation, while can reduce the damage of power supply and old
Change, promotes the life cycle of cable.
5, high temp objects spatial digitizer provided by the invention, by setting switching fixing head, one end can be by machine
People's pipeline packet is fixed on gauge head in cross, and gauge head can be fixed on robot arm by the other end, and switching fixing head can
To reduce the volume of junction, the abrasion of wire rod is reduced, while can be to avoid because surveying caused by the unfavorable factors such as strong vibration
The damage of precision instrument in accuracy of measurement decline or even gauge head.
Detailed description of the invention
Fig. 1 is that gauge head removes the three-dimensional model diagram after sealing shell in spatial digitizer in present pre-ferred embodiments；
Fig. 2 (a) is the whole three-dimensional model diagram of gauge head in spatial digitizer in present pre-ferred embodiments；
Fig. 2 (b) is the three-dimensional model diagram at the vertical view visual angle of gauge head in spatial digitizer in present pre-ferred embodiments；
Fig. 3 (a) is the three-dimensional model diagram at cooling control box main view visual angle in spatial digitizer in present pre-ferred embodiments；
Fig. 3 (b) is that cooling control box looks up the three-dimensional model diagram at visual angle in spatial digitizer in present pre-ferred embodiments.
In all the drawings, identical appended drawing reference is used to denote the same element or structure, in which:
1- gauge head, 11- projector, 12- switching fixing head, 12a- flange chassis, 12b- fixing head, 13- seal casinghousing,
13a- air inlet, the gas outlet 13b-, 13c- sealing clamping ring, 13d- infrared cutoff piece, 13e- power interface, 13f- cable interface,
14- industrial camera, 14a- cooling fin, 15- robot pipeline packet, 16- temperature sensor, 17- cable, 18- power supply line, 19- go out
Tracheae, 20- air inlet pipe, the cooling control box of 2-, 21- temperature difference piece refrigeration module, 22- finned cooler, 23- gas booster pump,
The second control panel of 24-, 25- ventilated net.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
Not constituting a conflict with each other can be combined with each other.
In the description of the present invention, it is to be understood that, term " center ", "upper", "lower", "front", "rear", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on the figure
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention；Separately
Outside, in the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.Specification of the invention
It is for distinguishing different objects, not for retouching with the term " first " in claims, " second ", " third " " the 4th " etc.
State particular order.
The embodiment of the invention provides a kind of high temp objects spatial digitizers, can adapt to hot environment work, are used for
To the three-dimensional measurement of high temp objects, such as can also normal high-acruracy survey to 1000 DEG C or more of high temperature workpiece.The three-dimensional is swept
Retouching instrument includes gauge head 1 and cooling control box 2.Gauge head 1 is mounted on robot arm when use, drives gauge head 1 by device human arm
The measured workpiece of the shooting high temperature of short distance, cooling control box 2 are remotely from the position of high temperature measured workpiece.
(a) and Fig. 2 (b) are shown as shown in Figure 1, Figure 2, and gauge head 1 includes seal casinghousing 13, projector 11, industrial camera 14, machine
People's pipeline packet 15, switching fixing head 12, temperature sensor 16, escape pipe 19, air inlet pipe 20, power supply line 18, cable 17 and first
Control panel.
Seal casinghousing 13 does shell for accommodating 11, two industrial cameras 14 of projector and temperature sensor 16
At sealing state, guarantees that the cold air that cooling assembly generates can be logical in shell inner recirculation flow, take away the intracorporal hot gas of shell, and prevent
Cool air leakage reduces adverse effect of the hot environment to measuring part in gauge head 1.
There are air inlet 13a, gas outlet 13b, sealing clamping ring 13c, infrared cutoff piece 13d, power interface on seal casinghousing 13
13e and cable interface 13f；Air inlet 13a is the entrance that cold air enters gauge head 1, is connected to air inlet pipe 20, and gas outlet 13b is to survey
The outlet of hot gas outflow in first 1, is connected to, power interface 13e is the interface of the power supply line 18 of gauge head 1, cable with escape pipe 19
Interface 13f is the interface of cable 17, and cable 17 is communicated for gauge head 1 with cooling control box 2.
Robot pipeline packet 15 is a branch of for escape pipe 19, air inlet pipe 20, power supply line 18 and cable 17 to be rolled into, and avoids
In robot arm rotation, escape pipe 19, air inlet pipe 20, power supply line 18 and cable 17 are wrapped on robot arm, in addition,
Robot pipeline packet 15 not only without limitation on the motion profile of robot, and helps to reduce damage and aging power supply, and aobvious
Write the life cycle for promoting cable.Robot pipeline packet 15 can be fixed on gauge head in cross by the one end for fixing head 12 of transferring
On 1, gauge head 1 can be fixed on robot arm by the other end, avoid seriously affecting because of unfavorable factors such as strong vibrations
Measurement accuracy, while volume can be reduced by fixing head of transferring, it is fixed on robot arm convenient for gauge head.
In the present embodiment, switching fixing head 12 includes flange chassis 12a and fixing head 12b；One end of flange chassis 12a
It is fixedly connected with one end of fixing head 12b, the other end of flange chassis 12a is fixed on robot arm, and fixing head 12b's is another
One end is provided with through-hole, and robot pipeline packet 15 passes through the through-hole on fixing head 12b, and the other end of fixing head 12b is fixed on survey
It on first 1, sees on the whole, switching fixing head 12 is in that cross is connect with robot pipeline packet 15.
Projector 11 captures the deformation light on measured workpiece surface to measured workpiece projection grating, industrial camera 14 when work
Grid.Since projector 11 and industrial camera 14 belong to precision instrument, it is most susceptible to temperature interference, when the temperature is excessively high, projection
Instrument 11 will brightness decay, industrial camera 14 is easy to go offline, or even damage gauge head 1.Therefore, in the present embodiment, in addition to setting
Have outside cooling assembly, thermal isolation film is also posted on 1 inner wall of gauge head, gauge head 1 is placed in proximity suit；It is all set on two industrial cameras 14
It is equipped with cooling fin 14a, through-hole, the heat dissipation on the air inlet 13a of gauge head 1 and an industrial camera 14 are provided on cooling fin 14a
The through-hole of on piece is connected to by air inlet pipe 20；It is logical on cooling fin on the gas outlet 13b of gauge head 1 and another industrial camera 14
Hole is connected to by escape pipe 19.The side of face measured workpiece is provided with through-hole, sealing clamping ring 13c and infrared on seal casinghousing 13
Cut out tab 13d, infrared cutoff piece 13d are arranged in the through-hole on seal casinghousing 13, and are in close contact with the inner wall of through-hole, sealing
Pressing ring 13c is fixed on infrared cutoff piece 13d；The camera lens face infrared cutoff piece 13d of industrial camera 14 and projector 11 setting.
Cooling fin 14a is used to draw the heat on industrial camera 14, the preferred red copper of material.Sealing clamping ring 13c be in order to
Through-hole is sealed, cool air leakage is prevented, infrared cutoff piece 13d obstructs infrared ray and passes through measurement form, avoids taking in because of infrared ray
Caused by temperature rise.
In the present embodiment, the temperature being also provided with inside the detection gauge head 1 of temperature sensor 16, and temperature value is passed through into net
Line passes to the second control panel 24, and temperature threshold is arranged on the second control panel 24, when temperature value is more than temperature threshold, second
Control panel 24 drives cooling assembly work, so that the temperature in gauge head 1 is reduced to temperature threshold hereinafter, since the second control panel 24 is set
It sets temperature threshold and drives the function of cooling assembly that can be realized by the prior art, therefore, be not repeated the second control panel herein
24 structure and control principle.
Projector 11, industrial camera 14 and temperature sensor 16 are electrically connected with the first control panel, the first control panel and
The communication of gauge head 1 and cooling control box 2 is realized in the electrical connection of two control panels 24 by the first control panel, the second control panel 24.
As shown in Fig. 3 (a) and Fig. 3 (b), cooling control box 2 includes shell, and is arranged in intracorporal second control panel of shell
24 and cooling assembly.
In the present embodiment, cooling control box 2 is arranged outside seal casinghousing 13, primarily to reducing high temperature source to cooling
The adverse effect of box 2 is controlled, provides cold air for gauge head 1, while easy to replace and maintain.Cooling assembly setting controls box cooling
In 2, cooling assembly includes temperature difference piece refrigeration module 21, finned cooler 22, gas booster pump 23 and ventilated net 25；Wherein,
The air inlet of gas booster pump 23 is connected to the gas outlet 13b of gauge head 1, the gas outlet of gas booster pump 23 and finned cooler
22 air inlet connection, the gas outlet of finned cooler 22 are connected to the cold chamber of temperature difference piece refrigeration module 21, temperature difference piece refrigeration
The cold chamber of module 21 is connected to the air inlet 13a of gauge head 1, and ventilated net 25 is mounted on cooling outside the hot chamber of temperature difference piece refrigeration module 21
It controls on 2 shell of box.
Temperature difference piece refrigeration module 21 is formed by connecting by two different semiconductor both ends, when one piece of N-type semiconductor material
Heat transfer will be generated when having electric current to pass through in the thermocouple pair being coupled to one piece of p-type semiconductor material, between both ends, from
One end is transferred to the other end, so that generating the temperature difference forms hot and cold side, i.e. one end heats, and other end refrigeration, ventilated net 25 can be fast
The heat of the hot chamber for taking away temperature difference piece refrigeration module 21 of speed, so that the refrigerating speed of temperature difference piece refrigeration module 21 is faster.
The embodiment of the present invention also provides the working method of above-mentioned high temp objects spatial digitizer, specific as follows:
Gauge head 1 is placed in proximity suit and is mounted on robot arm, gauge head 1 is driven closely by robot arm
Shoot the measured workpiece of high temperature；Cooling control box 2 is arranged in the position far from measured workpiece；
The temperature of gauge head 1 is detected by temperature sensor 16, and temperature value is passed into cooling control by the first control panel
Box 2, cooling control box 2 is according to the temperature value selectively driving cooling assembly work；1 inside hot gas of gauge head by escape pipe 19 with
And the hot gas air intake of cooling assembly enters inside cooling assembly, cooling assembly exports cold air after cooling down to hot gas, and cold air is from system
The cold air gas outlet of cold component is entered inside gauge head 1 by air inlet pipe 20, is cooled down to gauge head 1, and circulation temperature lowering is until gauge head 1
It is down to set temperature；
The thermal isolation film of 1 inner wall of gauge head and external proximity suit carry out isolation cooling to gauge head 1 simultaneously, on projector lens hole
Infrared cutoff piece 13d infrared isolation cooling is carried out to projector lens, the infrared cutoff piece 13d on camera lens hole is to camera
Camera lens carries out infrared isolation cooling；Cooling fin cools down to industrial camera 14；Combined by the above cooling method and realizes three-dimensional
Scanner works normally in a high temperauture environment.
Further, in this embodiment the refrigeration principle of cooling assembly is: gas booster pump 23 is converted into low-pressure gas
High pressure gas realizes the gas circulation in gauge head 1 and cooling control box 2, while the high-temperature gas in gauge head 1 is extracted and blasts
Finned cooler 22 carries out first time cooling, and the gas after primary cooling is blasted temperature difference piece refrigeration mould by finned cooler 22
The cold chamber of block 21 carries out second and cools down, and the cold air after reducing temperature twice is bloated from the cold end of temperature-difference refrigerating module 21, passes through gauge head 1
Air inlet pipe 20 flow to cooling fin 14a and make the reduction of 14 temperature of industrial camera, cold air passes through cooling fin 14a again and flows to seal box 13a
Every nook and cranny, and then reduce gauge head 1 bulk temperature, so recycle, make spatial digitizer adapt to hot environment.
Further, one end of air inlet pipe 20 is placed in the hole on the cooling fin on an industrial camera 14, will be gone out
One end of tracheae 19 is placed in the hole on the cooling fin on another industrial camera 14, by this method, in conjunction with cooling fin, is utilized
Cold air expeditiously cools down the temperature on industrial camera 14, quickly disperses the heat on industrial camera 14 using escape pipe 19.
High temp objects spatial digitizer proposed by the present invention, using split-type design, by can be external in spatial digitizer
Main element is both placed in outside gauge head seal casinghousing, and far from tested forging, reducing high temperature source influences the precision of measurement component,
Mitigate gauge head weight simultaneously, reduces the load of robot arm, significantly improve the sport efficiency of robot.Cooling assembly is set,
To cooling down in spatial digitizer seal casinghousing, reduces the problems such as high temperature goes offline to projector brightness decaying and camera and cause
Influence, the scanning accuracy and discrimination of spatial digitizer are improved, to adapt it to high-temperature work environment；Gas booster pump
So that low-pressure gas is converted into high pressure gas, realizes the gas circulation of gauge head and cooling control box, while the high-temperature gas in gauge head
It is extracted and blasts finned cooler and carry out first time cooling, the gas after primary cooling is blasted the temperature difference by finned cooler
The cold chamber of refrigeration module carries out second and cools down, and the gas after reducing temperature twice is bloated from the cold end of temperature-difference refrigerating module, passes through survey
The air inlet pipe of head, which flows to cooling fin, makes the reduction of industrial camera temperature, and cold air passes through cooling fin again and flows to everywhere in seal box, in turn
The bulk temperature of gauge head is reduced, is so recycled, three dimensional probe, 3-D probe is made to adapt to hot environment.1000 degrees Celsius or more high temperature works can be achieved
The high-acruracy survey of part.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of high temp objects spatial digitizer, which is characterized in that including gauge head (1) and cooling control box (2), wherein
The gauge head (1) includes seal casinghousing (13), escape pipe (19), air inlet pipe (20), and is all set in the capsul
Body (13) internal projector (11), industrial camera (14), temperature sensor (16) and the first control panel；Wherein,
The seal casinghousing (13) is equipped with for disposing the projector lens hole of the projector (11) camera lens, for disposing
State the camera lens hole of industrial camera (14) camera lens, air inlet (13a), gas outlet (13b), sealing clamping ring (13c) and infrared section
Limited step (13d), wherein the infrared cutoff piece (13d) is equipped on the projector lens hole and the camera lens hole, often
A infrared cutoff piece (13d) circumference is provided with the sealing clamping ring (13c) to realize the projector lens hole and the phase
The sealing of machine camera aperture；The air inlet (13a) is connected to the air inlet pipe (20), the gas outlet (13b) and the outlet
Manage (19) connection；Seal casinghousing (13) inner wall posts thermal isolation film；The industrial camera (14) is equipped with cooling fin；
One end of the escape pipe (19) is arranged in the seal casinghousing (13) interior side, the other end connection cooling control
The hot gas air intake of box (2) processed；One end of the air inlet pipe (20) is arranged in the internal other side of the seal casinghousing (13), another
The cold air gas outlet of one end connection cooling control box (2)；
The projector (11), industrial camera (14) and temperature sensor (16) are electrically connected with first control panel, are passed through
First control panel realizes the communication with cooling control box (2)；
Cooling control box (2) includes shell, and is arranged in the intracorporal cooling assembly of the shell and the second control panel (24),
Second control panel (24) is electrically connected with first control panel, the hot gas air intake and the escape pipe of the cooling assembly
(19) other end connection, the cold air gas outlet of the cooling assembly and the other end of the air inlet pipe (20) connect
It is logical.
2. a kind of high temp objects spatial digitizer according to claim 1, which is characterized in that the cooling assembly includes temperature
Poor piece refrigeration module (21), finned cooler (22), gas booster pump (23) and ventilated net (25)；Wherein, the gas increases
The air inlet of press pump (23) is connected to the other end of the escape pipe (19), the gas outlet of the gas booster pump (23) with
The air inlet of the finned cooler (22) is connected to, and the gas outlet of the finned cooler (22) and the temperature difference piece freeze
The cold chamber of module (21) is connected to, and the cold chamber of the temperature difference piece refrigeration module (21) and the other end of the air inlet pipe (20) connect
It is logical；Ventilated net (25) installation corresponds to the position of the periphery of the hot chamber of the temperature difference piece refrigeration module (21) on the housing
It sets；
The temperature difference piece refrigeration module (21) is coupled by one piece of N-type semiconductor and one piece of P-type semiconductor.
3. a kind of high temp objects spatial digitizer according to claim 1 or 2, which is characterized in that the industrial camera
(14) there are two, it is equipped with cooling fin thereon, hole, the hole on cooling fin on an industrial camera (14) are equipped on cooling fin
For placing one end of the air inlet pipe (20), the hole on cooling fin on another industrial camera (14) for place it is described go out
One end of tracheae (19).
4. a kind of high temp objects spatial digitizer according to claim 1 to 3, which is characterized in that the gauge head (1)
Further include robot pipeline packet (15) and switching fixing head (12), the robot pipeline packet (15) by the escape pipe (19) and
Air inlet pipe (20) be rolled into it is a branch of after radially across the switching fixing head (12), and with the switching fixing head (12) be connected；
It is connected on the seal casinghousing (13) below the switching fixing head (12), is equipped with ring flange above for connecting robot
Arm.
5. a kind of high temp objects spatial digitizer according to claim 4, which is characterized in that the switching fixing head (12)
Including flange chassis (12a) and fixing head (12b)；One end of the flange chassis (12a) and the one end of the fixing head (12b)
It is fixedly connected, the other end is for being fixed on robot arm；The fixing head (12b) is equipped with through-hole and is used for across described
The other end of robot pipeline packet (15), the fixing head (12b) is fixed on the gauge head (1).
6. a kind of high temp objects spatial digitizer according to claim 4 or 5, which is characterized in that the switching fixing head
(12) it is connect with the robot pipeline packet (15) in cross.
7. -6 any a kind of high temp objects spatial digitizer according to claim 1, which is characterized in that the gauge head (1)
Further include power supply line (18) and cable (17), is additionally provided with power interface (13e) and cable interface on the seal casinghousing (13)
(13f)；One end connection of the power supply line (18) cooling control box (2), the other end successively pass through the robot pipeline
Wrap (15) constraint and the power interface (13e) after connect first control panel, by first control panel to institute
It states projector (11), industrial camera (14) and temperature sensor (16) and power supply is provided；One end of the cable (17) is for connecting
Cooling control box (2), the other end successively pass through constraint and the cable interface (13f) of the robot pipeline packet (15)
First control panel is connected, later for realizing the communication of the gauge head (1) and cooling control box (2).
8. the working method of high temp objects spatial digitizer as claimed in claim 1 to 7, which is characterized in that by gauge head (1)
It is placed in proximity suit and is mounted on robot arm, the quilt of high temperature is closely shot by robot arm drive gauge head (1)
Survey workpiece；Cooling control box (2) is arranged in the position far from measured workpiece；
By the temperature of temperature sensor (16) detection gauge head (1), and temperature value is passed into cooling control by the first control panel
Box (2), cooling control box (2) is according to the temperature value selectively driving cooling assembly work；The internal hot gas of gauge head (1) passes through outlet
The hot gas air intake of pipe (19) and cooling assembly enters inside cooling assembly, and cooling assembly exports cold air after cooling down to hot gas,
Cold air enters gauge head (1) inside by air inlet pipe (20) from the cold air gas outlet of cooling assembly, cools down to gauge head (1), follows
Ring cooling is until gauge head (1) is down to set temperature；
The thermal isolation film of gauge head (1) inner wall and external proximity suit carry out isolation cooling to gauge head (1) simultaneously, on projector lens hole
Infrared cutoff piece (13d) infrared isolation cooling is carried out to projector lens, the infrared cutoff piece (13d) on camera lens hole is right
Camera lens carry out infrared isolation cooling；Cooling fin cools down to industrial camera (14)；Combined by the above cooling method real
Existing spatial digitizer works normally in a high temperauture environment.
9. the working method of high temp objects spatial digitizer according to claim 8, which is characterized in that gauge head (1) is internal
Hot gas is entered gas booster pump (23) by the air inlet of escape pipe (19) and gas booster pump (23), gas booster pump (23)
So that low-pressure gas is converted into high pressure gas, realize the gas circulation in gauge head (1) and cooling control box (2), high-pressure hot gas is taken out
Out and finned cooler (22) progress first time cooling is blasted, finned cooler (22) blasts the gas after primary cooling
The cold chamber of temperature difference piece refrigeration module (21) carries out second exporting cold air after cooling down, and cold air enters gauge head by air inlet pipe (20)
(1) internal, cool down to gauge head (1), circulation temperature lowering is until gauge head (1) is down to set temperature.
10. the working method of high temp objects spatial digitizer according to claim 9, which is characterized in that by air inlet pipe
(20) one end is placed in the hole on the cooling fin on an industrial camera (14), and one end of escape pipe (19) is placed on separately
In the hole on cooling fin on one industrial camera (14), by this method, in conjunction with cooling fin, cold air expeditiously bosher is utilized
Temperature on industry camera (14) quickly disperses the heat on industrial camera (14) using escape pipe (19).
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Application publication date: 20190917 |