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CN206772222U - Gate-type three-coordinates measuring machine - Google Patents

Gate-type three-coordinates measuring machine Download PDF

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Publication number
CN206772222U
CN206772222U CN201621475952.XU CN201621475952U CN206772222U CN 206772222 U CN206772222 U CN 206772222U CN 201621475952 U CN201621475952 U CN 201621475952U CN 206772222 U CN206772222 U CN 206772222U
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China
Prior art keywords
grating
reading head
plate
convex lens
aperture plate
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CN201621475952.XU
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Chinese (zh)
Inventor
陆庆年
陈璐
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SUZHOU EASSON OPTOELECTRONICS CO Ltd
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SUZHOU EASSON OPTOELECTRONICS CO Ltd
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Abstract

The utility model discloses a kind of gate-type three-coordinates measuring machine, including:Article carrying platform, active movement arm, driven lever arm, Steel tape surveyor's rod grating, grating reading head and horizontal bridge;The grating reading head further comprises left plate, right plate, substrate, aperture plate, convex lens and the indication grating immediately below aperture plate, each upper end is fixed with left plate, right plate respectively at the substrate both ends, each lower end is connected the indication grating with left plate, right plate, the aperture plate has the first strain line slab region and the second strain line slab region be arrangeding in parallel between substrate and indication grating, on the indication grating;The grating reading head is installed in X-axis slide block, and the Steel tape surveyor's rod grating is installed on horizontal bridge surface, and indication grating and the Steel tape surveyor's rod grating gap of the grating reading head coordinate.The utility model gate-type three-coordinates measuring machine both effectively eliminates reciprocal measurement error and mechanical engagement error, and it is high to also improve precision, reliability.

Description

Gate-type three-coordinates measuring machine
Technical field
It the utility model is related to a kind of three-coordinates measuring machine, more particularly to a kind of gate-type three-coordinates measuring machine.
Background technology
Three coordinate measuring machine is mainly used in that machinery, automobile, aviation, military project, furniture, instrument prototype, machine etc. are middle-size and small-size to match somebody with somebody The measurement of casing, frame, gear, cam, worm gear, worm screw, blade, curve, curved surface in the industries such as part, mould etc., also can use In the industries such as electronics, hardware, plastic cement, Precision measurement can be carried out to the size, shape and form and position tolerance of workpiece, so as to complete The tasks such as piece test, profile measurement, process control.Three-dimensional coordinates measurement is measurement and the most efficient method for obtaining sized data One of, because it can replace the built-up gauge of a variety of surface measurement instruments and costliness, and the measurement task of complexity is taken Between from hour reduce to minute.The function of three coordinate measuring machine is rapidly and accurately to evaluate sized data, for operator provide on The useful information of production process situation, this makes a big difference with all manual measurement equipment.Testee is placed in three seats Mapping quantity space, the coordinate position of each measuring point on testee can be obtained, according to the spatial value of these points, be computed obtaining Physical dimension, shape and the position of testee.
The content of the invention
The utility model provides a kind of gate-type three-coordinates measuring machine, and this gate-type three-coordinates measuring machine had both effectively been eliminated toward repetition measurement Error and mechanical engagement error are measured, also improves precision, reliability height and service life.
To reach above-mentioned purpose, the technical solution adopted in the utility model is:A kind of gate-type three-coordinates measuring machine, including: Article carrying platform, active movement arm, driven lever arm, Steel tape surveyor's rod grating, grating reading head and horizontal bridge, the active movement Arm, driven lever arm are respectively arranged at article carrying platform both sides, solid between the active movement arm, the respective upper end of driven lever arm Surely there is the horizontal bridge, this horizontal bridge is located at directly over article carrying platform, and an X-axis slide block that can be slided in the horizontal direction is installed on institute State in horizontal bridge, the X-axis slide block slidably connects the Z axis travel mechanism that can vertically slide;
The grating reading head further comprises left plate, right plate, substrate, aperture plate, convex lens and positioned at aperture plate The indication grating of underface, each upper end is fixed with left plate, right plate respectively at the substrate both ends, the indication grating and a left side Each lower end connects for side plate, right plate, and the aperture plate has flat between substrate and indication grating, on the indication grating The the first strain line slab region and the second strain line slab region that row is set;
The base lower surface is provided with infra red light emitter, and through hole is provided with the aperture plate, and the convex lens are located at Between infra red light emitter and through hole, the aperture plate surface opposite with convex lens is provided with photoelectric sensor, the photoelectricity Inductor is arranged at the periphery of through hole, and the aperture plate is located in the focal length of convex lens;
The grating reading head is installed in X-axis slide block, and the Steel tape surveyor's rod grating is installed on horizontal bridge surface, the light The indication grating of grid reading head coordinates with Steel tape surveyor's rod grating gap;
The grating reading head moves with X-axis slide block, and is scanned by the photoelectric sensor inside grating reading head Increment grating on the Steel tape surveyor's rod grating obtains displacement, and several absolute reference points are interspersed with the increment grating, Several zero reference points are interspersed with the first strain line slab region and the second strain line slab region.
Further improved technology scheme is as follows in above-mentioned technical proposal:
1. in such scheme, Z axis travel mechanism lower end is fixed with laser probe system and camera.
2. in such scheme, the left convex lens, a diameter of left through hole of right convex lens, right through hole diameter 1.2 ~ 2 Times.
3. in such scheme, the distance of the aperture plate and convex lens is 0.6 ~ 0.8 times of focal length of convex lens.
Because above-mentioned technical proposal is used, the utility model has following advantages compared with prior art:
The utility model gate-type three-coordinates measuring machine, its grating reading head are installed in X-axis slide block, the Steel tape surveyor's rod light Grid are installed on horizontal bridge surface, and indication grating and the Steel tape surveyor's rod grating gap of the grating reading head coordinate, substantially increased The precision of measurement;Secondly as being carved with increment grating on the steel band absolute grating ruler, and it is interspersed with the increment grating Some absolute reference points, so the utility model can allow Subsequent electronic equipment to be quickly found out absolute reference point, effectively improve work Efficiency;Again, several zero reference points are interspersed with its first strain line slab region and the second strain line slab region to be advantageous to sweep When retouching device and being moved at the splicing seams of any two scale gratings, can avoid and lose number, caused by measurement accuracy the problem of reducing, Greatly improve reliability height, precision, realize can super large range pickup measurement signal.
Brief description of the drawings
Accompanying drawing 1 is the utility model gate-type three-coordinates measuring machine dimensional structure diagram;
Accompanying drawing 2 is the utility model gate-type three-coordinates measuring machine partial structural diagram;
Accompanying drawing 3 is grating reading head structural representation in the utility model gate-type three-coordinates measuring machine;
Accompanying drawing 4 is that optical grating construction schematic diagram is indicated in the utility model gate-type three-coordinates measuring machine;
Accompanying drawing 5 is Steel tape surveyor's rod optical grating construction schematic diagram in the utility model gate-type three-coordinates measuring machine.
In the figures above:1st, article carrying platform;2nd, active movement arm;3rd, driven lever arm;4th, horizontal bridge;5th, X-axis slide block;6、 Z axis travel mechanism;8th, laser probe system;9th, camera;10th, Steel tape surveyor's rod grating;101st, increment grating;102nd, definitely join Examination point;17th, motor;18th, laser beam emitting head;19th, laser collecting sensor;20th, grating reading head;21st, substrate;22nd, diaphragm Plate;23rd, convex lens;24th, indication grating;241st, the first strain line slab region;242nd, the second strain line slab region;25th, infrared light lights Device;26th, through hole;27th, photoelectric sensor;28th, left plate;29th, right plate;30th, zero reference point.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is further described to the utility model:
Embodiment 1:A kind of gate-type three-coordinates measuring machine, including:Article carrying platform 1, active movement arm 2, driven lever arm 3, Steel tape surveyor's rod grating 10, grating reading head 20 and horizontal bridge 4, the active movement arm 2, driven lever arm 3 are respectively arranged at load The both sides of thing platform 1, the active movement arm 2, driven lever arm are fixed with the horizontal bridge 4 between 3 respective upper end, and this is horizontal Bridge 4 is located at directly over article carrying platform 1, and an X-axis slide block 5 that can be slided in the horizontal direction is installed in the horizontal bridge 4, the X Axle sliding block 5 slidably connects the Z axis travel mechanism 6 that can vertically slide;
The grating reading head 20 further comprises left plate 28, right plate 29, substrate 21, aperture plate 22, convex lens 23 With the indication grating 24 immediately below aperture plate 22, the both ends of substrate 21 respectively with left plate 28, right plate 31 each on End is fixed, and the indication grating 24 is connected with left plate 28,31 respective lower end of right plate, and the aperture plate 22 is located at the He of substrate 21 Between indication grating 24, there is the first strain line slab region 241 be arrangeding in parallel and the second strain line bar shaped on the indication grating 24 Area 242;
The lower surface of substrate 21 is provided with infra red light emitter 25, and through hole 26 is provided with the aperture plate 22, described convex For lens 23 between infra red light emitter 25 and through hole 26, the aperture plate 22 surface opposite with convex lens 23 is provided with light Electric inductor 27, the photoelectric sensor 27 are arranged at the periphery of through hole 26, and the aperture plate 22 is located at the focal length of convex lens 23 It is interior;
The grating reading head 20 is installed in X-axis slide block 5, and the Steel tape surveyor's rod grating 10 is installed on the surface of horizontal bridge 4, The indication grating 24 of the grating reading head 20 coordinates with the gap of Steel tape surveyor's rod grating 10;
The grating reading head 20 moves with X-axis slide block 5, and passes through the photoelectric sensor inside grating reading head 20 Increment grating 101 on the 27 scanning Steel tape surveyor's rod gratings 10 obtains displacement, is interspersed with the increment grating 101 some Individual absolute reference point 102, several zero-bits are interspersed with the strain line slab region 242 of the first strain line slab region 241 and second Reference point 30.
Above-mentioned left convex lens 25, a diameter of left through hole 241 of right convex lens 26,1.4 times of diameter of right through hole 242.
The distance of above-mentioned aperture plate 22 and convex lens 23 is 0.7 times of the focal length of convex lens 23.
Embodiment 2:A kind of gate-type three-coordinates measuring machine, including:Article carrying platform 1, active movement arm 2, driven lever arm 3, Steel tape surveyor's rod grating 10, grating reading head 20 and horizontal bridge 4, the active movement arm 2, driven lever arm 3 are respectively arranged at load The both sides of thing platform 1, the active movement arm 2, driven lever arm are fixed with the horizontal bridge 4 between 3 respective upper end, and this is horizontal Bridge 4 is located at directly over article carrying platform 1, and an X-axis slide block 5 that can be slided in the horizontal direction is installed in the horizontal bridge 4, the X Axle sliding block 5 slidably connects the Z axis travel mechanism 6 that can vertically slide;
The grating reading head 20 further comprises left plate 28, right plate 29, substrate 21, aperture plate 22, convex lens 23 With the indication grating 24 immediately below aperture plate 22, the both ends of substrate 21 respectively with left plate 28, right plate 31 each on End is fixed, and the indication grating 24 is connected with left plate 28,31 respective lower end of right plate, and the aperture plate 22 is located at the He of substrate 21 Between indication grating 24, there is the first strain line slab region 241 be arrangeding in parallel and the second strain line bar shaped on the indication grating 24 Area 242;
The lower surface of substrate 21 is provided with infra red light emitter 25, and through hole 26 is provided with the aperture plate 22, described convex For lens 23 between infra red light emitter 25 and through hole 26, the aperture plate 22 surface opposite with convex lens 23 is provided with light Electric inductor 27, the photoelectric sensor 27 are arranged at the periphery of through hole 26, and the aperture plate 22 is located at the focal length of convex lens 23 It is interior;
The grating reading head 20 is installed in X-axis slide block 5, and the Steel tape surveyor's rod grating 10 is installed on the surface of horizontal bridge 4, The indication grating 24 of the grating reading head 20 coordinates with the gap of Steel tape surveyor's rod grating 10;
The grating reading head 20 moves with X-axis slide block 5, and passes through the photoelectric sensor inside grating reading head 20 Increment grating 101 on the 27 scanning Steel tape surveyor's rod gratings 10 obtains displacement, is interspersed with the increment grating 101 some Individual absolute reference point 102, several zero-bits are interspersed with the strain line slab region 242 of the first strain line slab region 241 and second Reference point 30.
The above-mentioned lower end of Z axis travel mechanism 6 is fixed with laser probe system 8 and camera 9.
Above-mentioned left convex lens 25, a diameter of left through hole 241 of right convex lens 26,1.8 times of diameter of right through hole 242.
The distance of above-mentioned aperture plate 22 and convex lens 23 is 0.65 times of the focal length of convex lens 23.
During using above-mentioned gate-type three-coordinates measuring machine, its grating reading head is installed in X-axis slide block, the Steel tape surveyor's rod light Grid are installed on horizontal bridge surface, and indication grating and the Steel tape surveyor's rod grating gap of the grating reading head coordinate, substantially increased The precision of measurement;Secondly as being carved with increment grating on the steel band absolute grating ruler, and it is interspersed with the increment grating Some absolute reference points, so the utility model can allow Subsequent electronic equipment to be quickly found out absolute reference point, effectively improve work Efficiency;Again, several zero reference points are interspersed with its first strain line slab region and the second strain line slab region to be advantageous to sweep When retouching device and being moved at the splicing seams of any two scale gratings, can avoid and lose number, caused by measurement accuracy the problem of reducing, Greatly improve reliability height, precision, realize can super large range pickup measurement signal.
For above-described embodiment only to illustrate technical concepts and features of the present utility model, its object is to allow be familiar with technique Personage can understand content of the present utility model and implement according to this, the scope of protection of the utility model can not be limited with this. All equivalent change or modifications made according to the utility model Spirit Essence, should all cover the scope of protection of the utility model it It is interior.

Claims (4)

  1. A kind of 1. gate-type three-coordinates measuring machine, it is characterised in that:Including:Article carrying platform(1), active movement arm(2), driven activity Arm(3), Steel tape surveyor's rod grating(10), grating reading head(20)And horizontal bridge(4), the active movement arm(2), driven lever arm (3)It is respectively arranged at article carrying platform(1)Both sides, the active movement arm(2), driven lever arm(3)It is solid between respective upper end Surely there is the horizontal bridge(4), this horizontal bridge(4)Positioned at article carrying platform(1)Surface, an X-axis that can be slided in the horizontal direction are slided Block(5)It is installed on the horizontal bridge(4)On, the X-axis slide block(5)Slidably connect the Z axis movement that can vertically slide Mechanism(6);
    The grating reading head(20)Further comprise left plate(28), right plate(29), substrate(21), aperture plate(22), it is convex Lens(23)With positioned at aperture plate(22)The indication grating of underface(24), the substrate(21)Both ends respectively with left plate (28), right plate(31)Respective upper end is fixed, the indication grating(24)With left plate(28), right plate(31)Respective lower end connects Connect, the aperture plate(22)Positioned at substrate(21)And indication grating(24)Between, the indication grating(24)It is upper that there is parallel set The the first strain line slab region put(241)With the second strain line slab region(242);
    The substrate(21)Lower surface is provided with infra red light emitter(25), the aperture plate(22)On be provided with through hole(26), institute State convex lens(23)Positioned at infra red light emitter(25)With through hole(26)Between, the aperture plate(22)With convex lens(23)Opposite to each other Surface photoelectric sensor is installed(27), the photoelectric sensor(27)It is arranged at through hole(26)Periphery, the aperture plate (22)Positioned at convex lens(23)Focal length in;
    The grating reading head(20)It is installed on X-axis slide block(5)On, the Steel tape surveyor's rod grating(10)It is installed on horizontal bridge(4) Surface, the grating reading head(20)Indication grating(24)With Steel tape surveyor's rod grating(10)Gap coordinates;
    The grating reading head(20)With X-axis slide block(5)It is mobile, and by positioned at grating reading head(20)Internal optoelectronic induction Device(27)Scan the Steel tape surveyor's rod grating(10)On increment grating(101)Obtain displacement, the increment grating(101)In It is interspersed with several absolute reference points(102), the first strain line slab region(241)With the second strain line slab region(242)In It is interspersed with several zero reference points(30).
  2. 2. gate-type three-coordinates measuring machine according to claim 1, it is characterised in that:The Z axis travel mechanism(6)Lower end is consolidated Surely there is laser probe system(8)And camera(9).
  3. 3. gate-type three-coordinates measuring machine according to claim 1, it is characterised in that:The convex lens(23)It is a diameter of logical Hole(26)1.2 ~ 2 times of diameter.
  4. 4. gate-type three-coordinates measuring machine according to claim 1, it is characterised in that:The aperture plate(22)With convex lens (23)Distance be convex lens(23)0.6 ~ 0.8 times of focal length.
CN201621475952.XU 2016-12-30 2016-12-30 Gate-type three-coordinates measuring machine Active CN206772222U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621475952.XU CN206772222U (en) 2016-12-30 2016-12-30 Gate-type three-coordinates measuring machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621475952.XU CN206772222U (en) 2016-12-30 2016-12-30 Gate-type three-coordinates measuring machine

Publications (1)

Publication Number Publication Date
CN206772222U true CN206772222U (en) 2017-12-19

Family

ID=60648055

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621475952.XU Active CN206772222U (en) 2016-12-30 2016-12-30 Gate-type three-coordinates measuring machine

Country Status (1)

Country Link
CN (1) CN206772222U (en)

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