CN105241481A - Laser detection apparatus and prism fixing device for laser detection apparatus - Google Patents
Laser detection apparatus and prism fixing device for laser detection apparatus Download PDFInfo
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- CN105241481A CN105241481A CN201510644205.8A CN201510644205A CN105241481A CN 105241481 A CN105241481 A CN 105241481A CN 201510644205 A CN201510644205 A CN 201510644205A CN 105241481 A CN105241481 A CN 105241481A
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- laser
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- entrance aperture
- mounting groove
- fixing device
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- 238000001514 detection method Methods 0.000 title abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 28
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
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- 239000000758 substrate Substances 0.000 description 1
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Abstract
The invention discloses a laser detection apparatus and a prism fixing device for a laser detection apparatus. The prism fixing device comprises a device body. The device body comprises a bottom wall, a front sidewall and a rear sidewall. The bottom wall is provided with a first mounting structure for fixing a first block prism and a second mounting structure for fixing a second block prism. The front sidewall is equipped with a first laser incident hole and a second laser incident hole. The rear sidewall is equipped with a first laser emitting hole and a second laser emitting hole. The first laser incident hole and the first laser emitting hole are arranged in a coaxial manner. The second laser incident hole and the second laser emitting hole are arranged in a coaxial manner. The central axis of the first laser incident hole is parallel to the central axis of the second laser incident hole. The processing precision guarantees the coaxiality of the incident holes and the emitting holes, and also guarantees the parallelism of the central axes of the first and second incident holes. During mounting, the first block prism and the second block prism are directly installed in corresponding mounting structures without being adjusted, so an adjusting mechanism and an adjusting step are not needed. The installation is convenient.
Description
Technical field
The present invention relates to a kind of laser detector and prism fixing device thereof.
Background technology
Block prism is the core component of laser detector, accurately installs and keep position and the direction of block prism, is the basic place ensureing pick-up unit performance.Block prism be fixedly regulate the important content of laser detector, being installed of block prism be solved, clamp, fixing and adjustment.From a structural point, existing block prism stationary installation generally includes: the parts such as main frame, D translation base, three-dimensional adjustable shelf, accurate prism platform, detent mechanism, locking mechanism.Mainly there is following problem in existing block prism stationary installation: be first that mechanism is more, cost is higher; Be that adjustment is loaded down with trivial details in addition, be difficult to adjust to the technical requirements such as the required depth of parallelism, verticality and right alignment; And poor stability, after mixing up, slightly large vibration or environmental change, just can not meet required technical requirement again, need readjust; Be unfavorable for that the industrialization of product is produced.
Summary of the invention
The object of this invention is to provide a kind of prism fixing device, to solve the prism fixing device complex structure used in existing laser detector, the technical matters not easily adjusting to the required depth of parallelism and right alignment requirement.The present invention simultaneously also provides a kind of laser detector using this prism fixing device.
In order to realize above object, in the present invention, a kind of technical scheme of prism fixing device is as follows: prism fixing device comprises device body, device body comprises diapire, front side wall and rear wall, described diapire, front side wall and rear wall surround the installing space for installing block prism, described diapire is provided with the first mounting structure for fixedly mounting the first block prism passed through for laser testing light beam, for fixedly mounting the second mounting structure of the second block prism passed through for reference laser light light beam, described first mounting structure, second mounting structure all has the supporting plane for supporting corresponding block prism, the upper left right septum of described front side wall is provided with the first laser entrance aperture passed through for laser testing light beam, for the second laser entrance aperture that reference laser light light beam passes through, described rear wall is provided with the first laser emitting hole, second laser emitting hole, described first laser entrance aperture and described first laser emitting hole are coaxially arranged, described second laser entrance aperture and the second laser emitting hole are coaxially arranged, described first laser entrance aperture, the centerline axis parallel of the second laser entrance aperture.
Described diapire, front side wall and rear wall are enclosed to form the through U-type groove structure in left and right.
Described first mounting structure is the first opening up mounting groove, and described second mounting structure is the second opening up mounting groove.
Described diapire is integrally formed with the first installation base, the second installation base, described first mounting groove is arranged on the first installation base, and said second mounting groove is arranged on the second installation base.
Supporting plane on described first mounting groove, the second mounting groove is in same level.
Described prism fixing device also comprise releasable connection on described device body for being fixed the first hold-down mechanism of the first block prism and the second hold-down mechanism for being fixed the second block prism.
Laser detector of the present invention adopts following technical scheme: laser detector comprises prism fixing device, prism fixing device comprises device body, device body comprises diapire, front side wall and rear wall, described diapire, front side wall and rear wall surround the installing space for installing block prism, block prism comprises the first block prism passed through for laser testing light beam and the second block prism passed through for reference laser light light beam, described diapire is provided with the first mounting structure for fixedly mounting the first block prism, for fixedly mounting the second mounting structure of the second block prism, described first mounting structure, second mounting structure all has the supporting plane for supporting corresponding block prism, the upper left right septum of described front side wall is provided with the first laser entrance aperture passed through for laser testing light beam, for the second laser entrance aperture that reference laser light light beam passes through, described rear wall is provided with the first laser emitting hole, second laser emitting hole, described first laser entrance aperture and described first laser emitting hole are coaxially arranged, described second laser entrance aperture and the second laser emitting hole are coaxially arranged, described first laser entrance aperture, the centerline axis parallel of the second laser entrance aperture.
Described diapire, front side wall and rear wall are enclosed to form the through U-type groove structure in left and right.
Described first mounting structure is the first opening up mounting groove, and described second mounting structure is the second opening up mounting groove.
Described diapire is integrally formed with the first installation base, the second installation base, described first mounting groove is arranged on the first installation base, said second mounting groove is arranged on the second installation base, and the supporting plane on described first mounting groove, the second mounting groove is in same level.
Beneficial effect of the present invention: prism fixing device of the present invention is a machined tower structure, the right alignment in the right alignment in the first laser entrance aperture and the first laser emitting hole, the second laser entrance aperture and the second laser emitting hole ensures by machining precision, and the depth of parallelism of the central axis of the first entrance aperture and the second entrance aperture is also ensure by machining.The coplane degree of the flatness of the supporting plane on first and second mounting groove and two supporting planes is all ensure by processing.Therefore, when first and second block prism of installation, be directly installed to by first and second block prism in corresponding mounting groove, without the need to regulating, eliminate governor motion and governing loop, it is convenient to install, the good stability when the later stage uses.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of laser detector of the present invention;
Fig. 2 is the structural representation of the embodiment of prism fixing device of the present invention;
Fig. 3 is the exploded perspective view of Fig. 2;
Fig. 4 is the structural representation of device body in the embodiment of prism fixing device of the present invention;
Fig. 5 is laser detector fundamental diagram of the present invention.
Embodiment
The embodiment of laser detector of the present invention: as Figure 1-5, laser detector comprises prism fixing device, prism fixing device comprises the device body 20 of frame-type, device body 20 comprises diapire 10, front side wall 12 and rear wall 1, diapire 10, front side wall 12 and rear wall 1 are enclosed to form the through U-type groove structure in left and right, form the installing space for installing block prism.Block prism comprises the first block prism 11 passed through for laser testing light beam and the second block prism 6 passed through for reference laser light light beam.Diapire 10 is integrally formed with the first installation base 9, second installation base 13, first installation base 9 to be provided with the first opening up mounting groove 15, second installation base 13 and to be provided with the second opening up mounting groove 14.First mounting groove, the second mounting groove all have the supporting plane for supporting corresponding block prism, and supporting plane is formed by the first mounting groove of correspondence or the groove bottom wall of the second mounting groove.Supporting plane on first mounting groove, the second mounting groove is in same level.The opening up notch size of the upper end of the first mounting groove, the second mounting groove is adaptive with the size of corresponding block prism lower end.The corner of the first mounting groove, the second mounting groove being equipped with the technology groove 17 for stepping down when installing block prism of downward-extension, being convenient to block prism is installed.
The upper left right septum of front side wall 12 is provided with the first laser entrance aperture 8 passed through for laser testing light beam, the second laser entrance aperture 7 passed through for reference laser light light beam.Rear wall 1 is provided with the first laser emitting hole 3, first, laser emitting hole 16, second laser entrance aperture 8 and the first laser emitting hole 16 is coaxially arranged, and the second laser entrance aperture 7 and the second laser emitting hole 3 are coaxially arranged.The central axis B of the first laser entrance aperture 8, the central axis A of the second laser entrance aperture 7 are parallel.Beam plane residing for the central axis of the first laser entrance aperture 8 central axis and the second laser entrance aperture 7 is parallel with supporting plane.First and second laser entrance aperture and first and second laser emitting hole are counterbore.First and second entrance aperture place is provided with lens, and the first perforation hole place is provided with detector lens 25, has detection lens in detector lens.Second perforation hole place is provided with light path detector 30.
Prism fixing device also comprise releasable connection on device body for being fixed the first hold-down mechanism of the first block prism 11 and the second hold-down mechanism for being fixed the second block prism 6.Structure is identical in the present embodiment for first hold-down mechanism, the second hold-down mechanism.First hold-down mechanism comprises compressing tablet 2, compressing tablet 2 comprise two ends connecting portion and to recessed compressed part.The two ends of compressing tablet 2 are fixed on forward and backward side wall upper part respectively by screw.Compressed part has been threaded hold-down column 4, by regulating hold-down column 4 can compress the second block prism 6, fixes its relative position.
When mounted, first handle assembly body is placed on smooth stable worktable, careful is arranged on the first block prism 11, second block prism 6 in corresponding mounting groove, mounting groove is precision machined, can ensure that block prism is just in time placed in mounting groove, be unlikely to produce all around with the deviation of level.Then briquetting 5 is placed on corresponding block prism, first and second hold-down mechanism is successively installed, in advance hold-down column 4 is threaded on compressing tablet 2.Adjustment hold-down column 4 ensures that first and second block prism is fixing reliable.Finally corresponding lens, light path detector 30 etc. are installed again.
The principle of work of laser detector of the present invention, block diagram as shown in Figure 5: laser instrument sends two bundle laser signals, be respectively laser detection light beam and reference laser light light beam, laser detection light beam is by the first block prism, detection lens homed on its target thing, reflect through object, laser detection light beam is got back on the first block prism again, reflexes on the second block prism, then laser detection light beam directive light path detector together with reference laser light beam interference.By light path detector 30, capture the isoparametric change of light phase, then through decoding, amplifier amplifies, and this type of signal is decoded into the detection signal of needs by software and chip.
In the present invention, prism fixing device is a U-shaped tower structure processed, the right alignment in the right alignment in the first laser entrance aperture and the first laser emitting hole, the second laser entrance aperture and the second laser emitting hole ensures by machining precision, and the depth of parallelism of the central axis of the first entrance aperture and the second entrance aperture is also ensure by machining.The coplane degree of the flatness of the supporting plane on first and second mounting groove and two supporting planes is all ensure by processing.Therefore, when first and second block prism of installation, be directly installed to by first and second block prism in corresponding mounting groove, without the need to regulating, eliminate governor motion and governing loop, it is convenient to install, and the good stability when the later stage uses, environmental suitability is strong.
In other embodiments, the structure of device body also can on the basis of above-described embodiment, between first and second installation base, be reserved with the dividing plate that fore-and-aft direction extends, by dividing plate, the U-shaped installing space of block prism be separated into two, respectively corresponding two block prisms.In order to make the folded light beam of laser detection light beam can be injected on the second block prism, the light beam passing hole that left and right is through can be set on dividing plate, or the position lower than folded light beam that the height of dividing plate is arranged.
In other embodiments, can not arrange first and second installation base, can directly be processed on diapire by first and second mounting groove, need reserved bottom wall thickness thicker like this, weight is large.
In other embodiments, first hold-down mechanism can adopt an elastic pressuring plate, the two ends of elastic pressuring plate are fixed on two side, front and back respectively by screw, after fixing elastic pressuring plate, utilize the elastic compression of compressing tablet in block prism upper end, also can adapt to the compression requirement of the block prism within the scope of certain altitude.In other embodiments, the first hold-down mechanism can adopt a pressing plate, and one end of pressing plate is hinged end, the other end is for compressing end, and the compression side pressure of pressing plate is on the block prism of correspondence, and hinged end place is provided with torsion spring, by the elastic force of torsion spring, make compression side pressure in block prism upper end.
In other embodiments, first mounting structure also can not adopt the form of groove, two vertical side plates are adopted to be fixed together, an adjacent vertical side of two side plates is connected, form an orthogonal bending plate, the base plate of level is set below bending plate, when installation the first block prism, two side plates of bending plate can play the effect of location to block prism, supporting plane is formed by this substrate.Second mounting structure can be identical with the first mounting structure.
The embodiment of prism fixing device of the present invention, the structure of prism fixing device is identical with the structure of the prism fixing device in above-mentioned laser detector, and embodiment no longer describes in detail.
Claims (10)
1. a prism fixing device, it is characterized in that: comprise device body, device body comprises diapire, front side wall and rear wall, described diapire, front side wall and rear wall surround the installing space for installing block prism, described diapire is provided with the first mounting structure for fixedly mounting the first block prism passed through for laser testing light beam, for fixedly mounting the second mounting structure of the second block prism passed through for reference laser light light beam, described first mounting structure, second mounting structure all has the supporting plane for supporting corresponding block prism, the upper left right septum of described front side wall is provided with the first laser entrance aperture passed through for laser testing light beam, for the second laser entrance aperture that reference laser light light beam passes through, described rear wall is provided with the first laser emitting hole, second laser emitting hole, described first laser entrance aperture and described first laser emitting hole are coaxially arranged, described second laser entrance aperture and the second laser emitting hole are coaxially arranged, described first laser entrance aperture, the centerline axis parallel of the second laser entrance aperture.
2. prism fixing device according to claim 1, is characterized in that: described diapire, front side wall and rear wall are enclosed to form the through U-type groove structure in left and right.
3. prism fixing device according to claim 1, is characterized in that: described first mounting structure is the first opening up mounting groove, and described second mounting structure is the second opening up mounting groove.
4. prism fixing device according to claim 3, it is characterized in that: described diapire is integrally formed with the first installation base, the second installation base, described first mounting groove is arranged on the first installation base, and said second mounting groove is arranged on the second installation base.
5. the prism fixing device according to claim 3 or 4, is characterized in that: the supporting plane on described first mounting groove, the second mounting groove is in same level.
6. the prism fixing device according to Claims 1-4 any one, is characterized in that: described prism fixing device also comprise releasable connection on described device body for being fixed the first hold-down mechanism of the first block prism and the second hold-down mechanism for being fixed the second block prism.
7. laser detector, comprise prism fixing device, it is characterized in that: prism fixing device comprises device body, device body comprises diapire, front side wall and rear wall, described diapire, front side wall and rear wall surround the installing space for installing block prism, block prism comprises the first block prism passed through for laser testing light beam and the second block prism passed through for reference laser light light beam, described diapire is provided with the first mounting structure for fixedly mounting the first block prism, for fixedly mounting the second mounting structure of the second block prism, described first mounting structure, second mounting structure all has the supporting plane for supporting corresponding block prism, the upper left right septum of described front side wall is provided with the first laser entrance aperture passed through for laser testing light beam, for the second laser entrance aperture that reference laser light light beam passes through, described rear wall is provided with the first laser emitting hole, second laser emitting hole, described first laser entrance aperture and described first laser emitting hole are coaxially arranged, described second laser entrance aperture and the second laser emitting hole are coaxially arranged, described first laser entrance aperture, the centerline axis parallel of the second laser entrance aperture.
8. laser detector according to claim 7, is characterized in that: described diapire, front side wall and rear wall are enclosed to form the through U-type groove structure in left and right.
9. laser detector according to claim 7, is characterized in that: described first mounting structure is the first opening up mounting groove, and described second mounting structure is the second opening up mounting groove.
10. laser detector according to claim 9, it is characterized in that: described diapire is integrally formed with the first installation base, the second installation base, described first mounting groove is arranged on the first installation base, said second mounting groove is arranged on the second installation base, and the supporting plane on described first mounting groove, the second mounting groove is in same level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510644205.8A CN105241481B (en) | 2015-10-08 | 2015-10-08 | A kind of laser detector and its prism fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510644205.8A CN105241481B (en) | 2015-10-08 | 2015-10-08 | A kind of laser detector and its prism fixing device |
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| Publication Number | Publication Date |
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| CN105241481A true CN105241481A (en) | 2016-01-13 |
| CN105241481B CN105241481B (en) | 2017-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510644205.8A Expired - Fee Related CN105241481B (en) | 2015-10-08 | 2015-10-08 | A kind of laser detector and its prism fixing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375337A (en) * | 2018-11-16 | 2019-02-22 | 上海禾赛光电科技有限公司 | A kind of prism fixed structure |
| CN109613516A (en) * | 2018-11-16 | 2019-04-12 | 上海禾赛光电科技有限公司 | A kind of laser radar optical module mounting bracket |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375337A (en) * | 2018-11-16 | 2019-02-22 | 上海禾赛光电科技有限公司 | A kind of prism fixed structure |
| CN109613516A (en) * | 2018-11-16 | 2019-04-12 | 上海禾赛光电科技有限公司 | A kind of laser radar optical module mounting bracket |
| CN109375337B (en) * | 2018-11-16 | 2021-10-08 | 上海禾赛科技有限公司 | Prism fixed knot constructs |
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| Publication number | Publication date |
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| CN105241481B (en) | 2017-08-25 |
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Granted publication date: 20170825 |