CN110836645A - Projection type horizontal measuring instrument - Google Patents
Projection type horizontal measuring instrument Download PDFInfo
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- CN110836645A CN110836645A CN201911060422.7A CN201911060422A CN110836645A CN 110836645 A CN110836645 A CN 110836645A CN 201911060422 A CN201911060422 A CN 201911060422A CN 110836645 A CN110836645 A CN 110836645A
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- adjustable
- projective
- bulb
- measuring instrument
- horizontal
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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
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/2433—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures for measuring outlines by shadow casting
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- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
Abstract
The invention discloses a projection type horizontal measuring instrument, which comprises a rack, a light emitting mechanism for emitting light rays uniformly, an objective lens, an adjustable refraction reflector and a projection display screen, wherein the rack comprises a placing table for placing a part to be measured, the light emitting mechanism and the objective lens are separated from two sides of the placing table, the light emitting mechanism irradiates the part on the placing table from one side, the objective lens receives imaging light rays of the part from the other side, the imaging light rays emitted by the objective lens are projected on the adjustable refraction reflector and reflected on the projection display screen through the adjustable refraction reflector. The projection type horizontal measuring instrument has the advantages that the contour imaging of the part is clear, the measuring precision is higher, the imaging of the part can be displayed on the projection display screen, and an operator can conveniently and easily check the image.
Description
Technical Field
The invention relates to the technical field of measuring instruments, in particular to a projection type horizontal measuring instrument.
Background
The measuring instrument is used for imaging the outline of the part and measuring the size of the part. However, in the existing measuring instrument, the surface of the part is directly irradiated by the bulb, the light beam irradiation is not uniform, and the irradiation brightness is not uniform, so that the outline imaging of the part is not clear, and the size of the measured part is not accurate.
Therefore, a projection type horizontal measuring instrument is provided.
Disclosure of Invention
The invention mainly aims to provide a projection type horizontal measuring instrument which has the advantages of clear part imaging and more accurate measurement.
In order to achieve the purpose, the invention provides a projection type horizontal measuring instrument which comprises a rack, a light emitting mechanism for emitting light uniformly, an objective lens, an adjustable refraction reflector and a projection display screen, wherein the rack comprises an object placing table for placing a part to be measured, the light emitting mechanism and the objective lens are separated from two sides of the object placing table, the light emitting mechanism irradiates the part on the object placing table from one side, the objective lens receives imaging light of the part from the other side, the imaging light emitted by the objective lens is projected on the adjustable refraction reflector, and the imaging light is reflected on the projection display screen through the adjustable refraction reflector.
Preferably, the light emission mechanism comprises a light source box body, a bulb and a lens group, the bulb and the lens group are arranged on the light source box body, and the light emitting surface of the bulb faces the lens group.
Preferably, the light emitting mechanism further comprises a heat dissipation fan, the heat dissipation fan is fixed in the light source box, and an air outlet of the heat dissipation fan faces the bulb.
Preferably, the bulb, the lens group and the objective lens are arranged on the same straight line.
Preferably, the projection horizontal measuring instrument further comprises a plurality of groups of adjustable components, and the adjustable refraction reflector is connected to the rack through the adjustable components; the plurality of adjustable components are uniformly distributed on the outer edge of the adjustable refraction reflector.
Preferably, the adjustable component comprises a screw, a guide rod and a spring, the screw and the guide rod fix the adjustable refraction reflector on the rack, the guide rod is parallel to the screw, the adjustable refraction reflector and the rack are provided with a spacing distance, the spring is sleeved on the guide rod, one end of the spring abuts against the back of the adjustable refraction reflector, and the other end of the spring abuts against the rack.
Preferably, the adjustable refraction reflector forms a first included angle a with the horizontal plane, and the projection display screen forms a second included angle b with the horizontal plane, where 2a-b is equal to 90 °.
Preferably, the first angle a ranges from 45 ° < a < > 90 °, and the second angle b ranges from 0 ° < b < > 90 °.
Preferably, the projection horizontal measuring instrument further comprises a power supply, the power supply is arranged in the rack, and the power supply is electrically connected with the bulb and the cooling fan.
Compared with the prior art, the invention has the following beneficial effects: the projection type horizontal measuring instrument can clearly image the outline of a part and has higher measuring precision by arranging the light emitting mechanism which emits light uniformly; moreover, through the arrangement of the adjustable refraction reflector and the projection display screen, the part can be displayed on the projection display screen in an imaging manner, and an operator can conveniently and easily check the part.
Drawings
Fig. 1 is a perspective view of a projection type horizontal measuring instrument according to an embodiment of the invention.
Fig. 2 is a cross-sectional view of a projection type horizontal measuring instrument according to an embodiment of the invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
The invention discloses a projection type horizontal measuring instrument 100, which can clearly image the outline of a part by arranging a light emitting mechanism 20 which can uniformly emit light; moreover, through the arrangement of the adjustable refraction reflector 40 and the projection display screen 50, the part image can be displayed on the projection display screen 50, and the operator can conveniently and easily check the part image.
Fig. 1-2 are different views of the projection type horizontal measuring instrument 100 in the embodiment, and the structure of the projection type horizontal measuring instrument 100 will be described in detail with reference to fig. 1-2:
referring to fig. 1-2, the projection horizontal measuring instrument 100 of the present embodiment includes a frame 10, a light emitting mechanism 20 for emitting light uniformly, and an objective lens 30, wherein the frame 10 includes a placement platform 11 for placing a component to be measured. Specifically, the light emitting mechanism 20 and the objective lens 30 are separately disposed on two sides of the object placing table 11, the light emitting mechanism 20 irradiates a component on the object placing table 11 from one side, and the objective lens 30 receives an imaging light of the component from the other side.
Specifically, the light emitting mechanism 20 of the present embodiment includes a light source box 21, a bulb 22 and a lens assembly 23, wherein the bulb 22 and the lens assembly 23 are both disposed on the light source box 21, and a light emitting surface of the bulb 22 faces the lens assembly 23. Wherein, the bulb 22 is positioned in the light source box body 21; the lens assembly 23 is connected to the light source box 21, the optical path direction of the lens assembly 23 is set along the horizontal direction, one side of the lens assembly 23 faces the inside of the light source box 21, the other side of the lens assembly 23 faces the outside of the light source box 21, and the emergent light of the other side of the lens assembly 23 is right opposite to the objective lens 30. Preferably, the bulb 22, the lens group 23, and the objective lens 30 are disposed on the same straight line.
Furthermore, the light emitting mechanism 20 of the present embodiment further includes a heat dissipating fan 24 for cooling the light source box 21, and the heat dissipating fan 24 is fixed in the light source box 21. The heat dissipation fan 24 may be located below the bulb 22, but not limited thereto, and it is only necessary that the air outlet of the heat dissipation fan 24 is aligned with the bulb 22.
Referring to fig. 1-2, the horizontal projection type measuring instrument 100 of the present embodiment further includes an adjustable refraction mirror 40 and a projection display screen 50, wherein the imaging light emitted from the objective lens 30 is projected onto the adjustable refraction mirror 40 and reflected onto the projection display screen 50 through the adjustable refraction mirror 40. Preferably, the center point of the adjustable refractive mirror 40 is located on the extension of the line connecting the bulb 22, the lens assembly 23 and the objective lens 30.
Furthermore, the adjustable refraction reflector 40 and the projection display screen 50 of the present embodiment are both inclined at a certain angle, the adjustable refraction reflector 40 and the horizontal plane form a first included angle a, and the range of the first included angle a is 45 ° < a ═ 90 °; the projection display screen 50 forms a second included angle b with the horizontal plane, and the range of the second included angle b is 0 degrees < b <, 90 degrees. Preferably, 2a-b is equal to 90 °, so that the imaging light is projected to the center of the projection display screen 50, and the imaging effect is ensured.
Referring to fig. 1-2, the horizontal projection measuring instrument 100 of the present embodiment further includes a plurality of sets of adjustable components 60, and the adjustable refractive mirror 40 can be adjusted to a suitable angle by the adjustable components 60. The adjustable refraction reflector 40 is connected to the frame 10 through the adjustable components 60, the adjustable components 60 are uniformly distributed on the outer edge of the adjustable refraction reflector 40, and the adjustable refraction reflector 40 is more stable through the uniform distribution of the adjustable components 60.
Specifically, the adjustable assembly 60 includes a screw 61, a guiding rod 62 and a spring 63, the adjustable refraction mirror 40 is fixed on the frame 10 by the screw 61 and the guiding rod 62, the guiding rod 62 is parallel to the screw 61, a distance is provided between the adjustable refraction mirror and the frame 10, the spring 63 is sleeved on the guiding rod 62, one end of the spring 63 abuts against the back of the adjustable refraction mirror 40, and the other end of the spring 63 abuts against the frame 10. The adjustable refraction reflector 40 is fixed by the screw 61, and a pretightening force is applied to the joint of the screw 61 and the adjustable refraction reflector 40 by the spring 63 sleeved on the guide rod 62, so that the adjustable refraction reflector 40 is more stably installed.
Referring to fig. 1-2, the projection horizontal measuring instrument 100 of the present embodiment further includes a power supply 70, the power supply 70 is disposed in the rack 10, the power supply 70 is electrically connected to the lamp 22 and the cooling fan, and the power supply 70 supplies power to the lamp 22 and the cooling fan 24.
Compared with the prior art, the invention has the following beneficial effects: the projection type horizontal measuring instrument 100 can clearly image the outline of a part and has higher measuring precision by arranging the light emitting mechanism 20 which emits light uniformly; moreover, through the arrangement of the adjustable refraction reflector 40 and the projection display screen 50, the part image can be displayed on the projection display screen 50, and the operator can conveniently and easily check the part image.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a horizontal measuring apparatu of projection formula which characterized in that, includes frame, the even light emission mechanism of emitted light, objective, adjustable refraction reflector and projection display screen, the frame is including being used for placing the thing platform of putting of measuring part, light emission mechanism objective divide in put thing platform both sides, light emission mechanism shines by one side and is located put the part on the thing platform, objective receives from the opposite side the formation of image light of part, by the formation of image light of objective outgoing in on the adjustable refraction reflector, through the adjustable refraction reflector reflect in on the projection display screen.
2. The projective horizontal measuring instrument of claim 1, wherein the light emitting mechanism comprises a light source box, a bulb and a lens set, the bulb and the lens set are disposed on the light source box, and the light emitting surface of the bulb faces the lens set.
3. The projective horizontal measuring instrument of claim 2, wherein the light emitting mechanism further comprises a heat dissipating fan, the heat dissipating fan is fixed in the light source box, and an air outlet of the heat dissipating fan faces the bulb.
4. The projective horizontal surveying instrument of claim 2, wherein the bulb, the lens group, and the objective lens are disposed on a same straight line.
5. The projective horizontal surveying instrument of claim 1, further comprising a plurality of sets of adjustable components, wherein the adjustable refractive reflectors are connected to the frame via the adjustable components; the plurality of adjustable components are uniformly distributed on the outer edge of the adjustable refraction reflector.
6. The projective horizontal measuring instrument of claim 5, wherein the adjustable assembly comprises a screw, a guide rod and a spring, the screw and the guide rod fix the adjustable refraction mirror on the frame, the guide rod is parallel to the screw, the adjustable refraction mirror and the frame are spaced apart by a distance, the spring is sleeved on the guide rod, one end of the spring abuts against the back of the adjustable refraction mirror, and the other end of the spring abuts against the frame.
7. The projective horizontal surveying instrument of claim 1, wherein the adjustable refractive reflector forms a first angle a with the horizontal plane, and the projection display screen forms a second angle b with the horizontal plane, wherein 2a-b is 90 °.
8. The projective horizontal surveying instrument of claim 7, wherein the first angle a ranges from 45 ° < a ═ 90 °, and the second angle b ranges from 0 ° < b ≦ 90 °.
9. The projective horizontal measuring instrument of claim 3, further comprising a power supply, wherein the power supply is disposed in the rack, and the power supply is electrically connected to the bulb and the cooling fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911060422.7A CN110836645A (en) | 2019-11-01 | 2019-11-01 | Projection type horizontal measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911060422.7A CN110836645A (en) | 2019-11-01 | 2019-11-01 | Projection type horizontal measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110836645A true CN110836645A (en) | 2020-02-25 |
Family
ID=69575877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911060422.7A Pending CN110836645A (en) | 2019-11-01 | 2019-11-01 | Projection type horizontal measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110836645A (en) |
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2019
- 2019-11-01 CN CN201911060422.7A patent/CN110836645A/en active Pending
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