CN102840842B - Deep hole verticality laser measurement system and measuring method - Google Patents
Deep hole verticality laser measurement system and measuring method Download PDFInfo
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- CN102840842B CN102840842B CN201210326379.6A CN201210326379A CN102840842B CN 102840842 B CN102840842 B CN 102840842B CN 201210326379 A CN201210326379 A CN 201210326379A CN 102840842 B CN102840842 B CN 102840842B
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Abstract
A kind of deep hole verticality laser measurement system, comprises hand-held vertical support; Generating laser, it is arranged on the inside of hand-held vertical support, and its front end emission head exposes outside hand-held vertical support; The front end emission head of generating laser inserts by one end of sounding hole, and hand-held vertical support is contacted with tested reference field; Spacer shell, it is arranged in the other end by sounding hole; Laser position pick-up unit, it is arranged in spacer shell; This laser position pick-up unit comprises the laser pickoff, display and the power supply that are connected by circuit, laser pickoff receives the collimation laser gone out by laser transmitter projects, and is shown over the display by the position deviation coordinate figure of incident laser and this laser pickoff physical centre.The present invention also provides a kind of deep hole verticality laser measurement method.Energy convenient and efficient of the present invention is measured accurately by the verticality of sounding hole relative to reference field, and will be subject to the restriction of measuring system dimension by the degree of depth of sounding hole.
Description
Technical field
The present invention relates to a kind of measuring system and measuring method of deep hole verticality, refer in particular to the system and method utilizing laser to measure deep hole verticality; Belong to field of measuring technique.
Background technology
The tube sheet diameter of nuclear steam generator is Ф 3000 ~ Ф 5000mm, and thickness is 600 ~ 900mm, with tube plate of nuclear power steam generator one side plane for benchmark, need measure the verticality of each deep hole on this tube plate of nuclear power steam generator relative to reference field.The deviation of deep hole verticality by the installation of the rear bearing sheet of directly impact, and in the pore of nearly ten thousand rectangular arranged can smoothly, exactly through the U-tube bundle reaching tens meters.
Traditional deep hole verticality measuring method adopts plug Simulation Center axis, needs the aperture first measuring measured hole, then processes the plug coordinated with it by aperture size, then insert in measured hole by plug, can obtain measured hole central axis by measure-axis.If measured hole size is less or hole depth chin-deep, the difficulty making plug will be very large, causes cost to improve in a large number.
In addition, also have in prior art and utilize three-dimensional to carry out the method measured, the method needs to purchase large-scale three-dimensional, and cost is very high, and larger by the restriction of the conditions such as place.
Comprehensively above-mentioned, to the measurement of deep hole verticality, there is following restriction and defect in prior art.1, artificially read measurement data, error is comparatively large, causes measuring accuracy and measure efficiency all lower.2, prior art adopts plug simulation reference center's axis and measured hole central axis, causes the measurement length of measured hole to be subject to the restriction of plug length, conveniently cannot realize the measurement for deep hole verticality.
Summary of the invention
The object of this invention is to provide a kind of deep hole verticality laser measurement system and measuring method, can convenient, measure by the verticality of sounding hole relative to reference field efficiently, accurately, guarantee product quality, and will the restriction of measuring system dimension be subject to by the degree of depth of sounding hole.
For achieving the above object, the invention provides a kind of deep hole verticality laser measurement system, it comprises: hand-held vertical support; Generating laser, it launches collimation laser, and the axis of this collimation laser is coaxial with the cylindrical of generating laser; Described generating laser is arranged on the inside of described hand-held vertical support, and the front end emission head of this generating laser exposes outside hand-held vertical support; The front end emission head of described generating laser inserts by one end of sounding hole, and described hand-held vertical support is contacted with tested reference field; Spacer shell, it is arranged in the other end by sounding hole; Laser position pick-up unit, it is arranged in described spacer shell; This laser position pick-up unit comprises the laser pickoff, display and the power supply that are connected by circuit, described laser pickoff receives the collimation laser gone out by laser transmitter projects, and is shown over the display by the position deviation coordinate figure of incident laser and this laser pickoff physical centre.
The front end emission head of described generating laser is cone-shaped.
The bottom of described generating laser is provided with the pinch plate protruded both sides.
Described hand-held vertical support is in T shape, comprises mutual vertically disposed bearing seat body and bearing datum plate.
The bottom of described bearing seat body is provided with limiting plate, spring bonnet and one end and is fixedly connected on limit spring on described spring bonnet; Described generating laser is arranged in the bearing seat body of hand-held vertical support, and described pinch plate and the mutual buckle of limiting plate, with the setting position of fixed laser transmitter, screw described spring bonnet, limit spring are withstood the bottom pinch plate of generating laser.
The front-end surface of described bearing datum plate is inlayed and is provided with some steel balls, when generating laser front end emission head insert by one end of sounding hole time, this some steel ball and tested reference field abutting contact.
Described laser position pick-up unit comprises a mounting casing, and it is inner that described laser pickoff, display and power supply are all arranged on this mounting casing.
One adapter sleeve is also set in the outside of described mounting casing, the cylindrical center of circle of this adapter sleeve and the physics reading centres of laser pickoff.
The inner circle center of circle and the cylindrical center of circle of described spacer shell are concentric; The excircle dimension of this spacer shell with matched by the inner circle size of sounding hole, the excircle dimension of the inner circle size of this spacer shell and the adapter sleeve of laser position pick-up unit matches.
The present invention also provides a kind of method utilizing above-mentioned laser measurement system to measure deep hole verticality, specifically comprises following steps:
Step 1, be mounted in hand-held vertical support by generating laser, screw spring bonnet with fixed laser transmitter, the front end emission head of this generating laser exposes in the outside of hand-held vertical support;
Step 2, by the front end emission head of generating laser insert by one end of sounding hole, make the some steel balls on the bearing datum plate of hand-held vertical support all with tested reference field abutting contact;
Step 3, spacer shell to be inserted by the other end of sounding hole, and laser position pick-up unit is arranged in this spacer shell;
Step 4, open laser transmitter projects collimation laser, the axis of this collimation laser is coaxial with the cylindrical of generating laser, it is through being received by the laser pickoff of sounding hole by laser position pick-up unit, the position deviation coordinate figure of incident laser and this laser pickoff physical centre shows over the display by this laser pickoff, thus measurement obtains by the verticality of sounding hole relative to tested reference field.
In sum, deep hole verticality laser measurement system provided by the present invention and measuring method, compared with prior art, there is following beneficial effect: because the laser measurement system in the present invention is a kind of Portable type measurement unit of hand-held, therefore, it is possible to convenient, efficiently, accurately carry out surveying work, thus realize high-precision measurement by the verticality of sounding hole relative to reference field.Meanwhile, the present invention adopts laser acquisition, and automatically reads and display data, effectively reduces personal error.Finally, measuring basis central axis of the present invention and utilized laser beam axis to realize by sounding hole central axis, replace the method for traditional plug Simulation Center axis, the measurement length of measured hole will no longer be subject to the restriction of plug length, namely, for measuring system, it is applicable to the longhole survey of any degree of depth.
Accompanying drawing explanation
Fig. 1 is the structural representation of the deep hole verticality laser measurement system in the present invention;
Fig. 2 is the structural representation of the hand-held vertical support in the present invention;
Fig. 3 is the structural representation of the generating laser in the present invention.
Embodiment
Below in conjunction with Fig. 1 ~ Fig. 3, describe a preferred embodiment of the present invention in detail.
As shown in Figure 1, deep hole verticality laser measurement system provided by the present invention comprises: hand-held vertical support 1; Generating laser 2, it is arranged on the inside of described hand-held vertical support 1, and the front end emission of this generating laser 2 21 is exposed outside hand-held vertical support 1; The front end emission of described generating laser 2 21 insert on steam generator tube sheets 5 by one end of sounding hole 6, described hand-held vertical support 1 is contacted with the tested reference field 7 on steam generator tube sheet 5; Spacer shell 4, its be arranged on steam generator tube sheet 5 by the other end of sounding hole 6; Laser position pick-up unit 3, it is arranged in described spacer shell 4, and this laser position pick-up unit 3 comprises the laser pickoff, display and the power supply that are connected by circuit.
Described generating laser 2 is for launching collimation laser, and the axis of this collimation laser is coaxial with the cylindrical of generating laser 2.As shown in Figure 3, the front end emission 21 of this generating laser 2 is in cone-shaped; The bottom of this generating laser 2 is provided with the pinch plate 22 protruded both sides.
As shown in Figure 2, described hand-held vertical support 1 is in T shape, comprises mutual vertically disposed bearing seat body 11 and bearing datum plate 12.Wherein, the bottom of described bearing seat body 11 is provided with limiting plate 15, spring bonnet 14 and one end and is fixedly connected on limit spring 13 on described spring bonnet 14.As shown in Figure 1, described generating laser 2 is arranged in the bearing seat body 11 of hand-held vertical support 1, described pinch plate 22 and the mutual buckle of limiting plate 15 are with the setting position of fixed laser transmitter 2, screw described spring bonnet 14, make limit spring 13 withstand the bottom pinch plate 22 of generating laser 2.
Further, the front-end surface of described bearing datum plate 12 is inlayed and is provided with some steel balls 16, as shown in Figure 1, when the front end emission 21 of generating laser 2 insert on steam generator tube sheets 5 by one end of sounding hole 6 time, this some steel ball 16 and tested reference field 7 abutting contact on steam generator tube sheet 5, thus guarantee that the plane that the axis of the collimation laser that generating laser 2 penetrates and the some steel balls 16 be embedded on bearing datum plate 12 form is mutually vertical.
As shown in Figure 1, described laser position pick-up unit 3 comprises a mounting casing, and it is inner that described laser pickoff, display and power supply are all arranged on this mounting casing.One adapter sleeve is also set in the outside of described mounting casing, the cylindrical center of circle of this adapter sleeve and the physics reading centres of laser pickoff.
The inner circle center of circle and the cylindrical center of circle of described spacer shell 4 are concentric; The excircle dimension of this spacer shell 4 with matched by the inner circle size of sounding hole 6, the excircle dimension of the inner circle size of this spacer shell 4 and the adapter sleeve of laser position pick-up unit 3 matches.
Described laser pickoff receives the collimation laser launched by generating laser 2, and the position deviation coordinate figure of incident laser and this laser pickoff physical centre shows over the display by it.In the present embodiment, described laser pickoff adopts PSD detector, specifically select model be S5991 ?the Two-dimensional PSD detector of 01:12 × 12mm.And described display adopts Two-dimensional PSD display tube, specifically select the bar shaped 7 segmentation light-emitting diode display that area is larger.
The present invention also provides a kind of method utilizing above-mentioned laser measurement system to measure deep hole verticality, specifically comprises following steps:
Step 1, to be mounted in hand-held vertical support 1 by generating laser 2, to screw spring bonnet 14 with fixed laser transmitter 2, the front end emission of this generating laser 2 21 is exposed in the outside of hand-held vertical support 1;
Step 2, the front end emission of generating laser 2 21 inserted on steam generator tube sheets 5 by one end of sounding hole 6, make some steel balls 16 on the bearing datum plate 12 of hand-held vertical support 1 all with tested reference field 7 abutting contact on steam generator tube sheet 5;
Step 3, spacer shell 4 inserted on steam generator tube sheet 5 by the other end of sounding hole 6, and laser position pick-up unit 3 to be arranged in this spacer shell 4;
Step 4, open generating laser 2 and launch collimation laser, the axis of this collimation laser is coaxial with the cylindrical of generating laser 2, it is through being received by the laser pickoff of sounding hole 6 by laser position pick-up unit 3, the position deviation coordinate figure of incident laser and this laser pickoff physical centre shows over the display by this laser pickoff, thus measurement obtains by the verticality of sounding hole 6 relative to tested reference field 7.
In sum, deep hole verticality laser measurement system provided by the present invention and measuring method, compared with prior art, have following beneficial effect:
1, due to the Portable type measurement unit that the laser measurement system in the present invention is a kind of hand-held, therefore, it is possible to convenient, efficiently, accurately carry out surveying work, thus realize high-precision measurement by the verticality of sounding hole relative to reference field.
2, the present invention adopts laser acquisition, and automatically reads and display data, effectively reduces personal error.
3, measuring basis central axis of the present invention and utilized laser beam axis to realize by sounding hole central axis, replace the method for traditional plug Simulation Center axis, the measurement length of measured hole will no longer be subject to the restriction of plug length, namely, for measuring system, it is applicable to the longhole survey of any degree of depth.
Although content of the present invention has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.Such as, the present invention merely illustrates the measurement for the deep hole be positioned on tube plate of nuclear power steam generator, after but those skilled in the art have read foregoing, should recognize that present system and method are also applicable to the longhole survey of other nuclear powers or non-nuclear power product, any for multiple amendment of the present invention and substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
1. a deep hole verticality laser measurement system, is characterized in that, comprises:
Hand-held vertical support (1);
Generating laser (2), it launches collimation laser, and the axis of this collimation laser is coaxial with the cylindrical of generating laser (2); Described generating laser (2) is arranged on the inside of described hand-held vertical support (1), and the front end emission head (21) of this generating laser (2) exposes at hand-held vertical support (1) outward; The front end emission head (21) of described generating laser (2) inserts by one end of sounding hole (6), and described hand-held vertical support (1) is contacted with tested reference field (7);
Spacer shell (4), it is arranged on by the other end of sounding hole (6);
Laser position pick-up unit (3), it is arranged in described spacer shell (4); This laser position pick-up unit (3) comprises the laser pickoff, display and the power supply that are connected by circuit, described laser pickoff receives the collimation laser launched by generating laser (2), and is shown over the display by the position deviation coordinate figure of incident laser and this laser pickoff physical centre.
2. deep hole verticality laser measurement system as claimed in claim 1, it is characterized in that, the front end emission head (21) of described generating laser (2) is in cone-shaped.
3. deep hole verticality laser measurement system as claimed in claim 1, is characterized in that, the bottom of described generating laser (2) is provided with the pinch plate (22) protruded both sides.
4. deep hole verticality laser measurement system as claimed in claim 3, it is characterized in that, described hand-held vertical support (1) is in T shape, comprises mutual vertically disposed bearing seat body (11) and bearing datum plate (12).
5. deep hole verticality laser measurement system as claimed in claim 4, it is characterized in that, the bottom of described bearing seat body (11) is provided with limiting plate (15), spring bonnet (14) and one end and is fixedly connected on limit spring (13) on described spring bonnet (14); Described generating laser (2) is arranged in the bearing seat body (11) of hand-held vertical support (1), described pinch plate (22) and the mutual buckle of limiting plate (15) are with the setting position of fixed laser transmitter (2), screw described spring bonnet (14), limit spring (13) is withstood the bottom pinch plate (22) of generating laser (2).
6. deep hole verticality laser measurement system as claimed in claim 4, it is characterized in that, the front-end surface of described bearing datum plate (12) is inlayed and is provided with some steel balls (16), when the front end emission head (21) of generating laser (2) insert by one end of sounding hole (6) time, this some steel ball (16) and tested reference field (7) abutting contact.
7. deep hole verticality laser measurement system as claimed in claim 1, it is characterized in that, described laser position pick-up unit (3) comprises a mounting casing, and it is inner that described laser pickoff, display and power supply are all arranged on this mounting casing.
8. deep hole verticality laser measurement system as claimed in claim 7, is characterized in that, also arrange an adapter sleeve in the outside of described mounting casing, the cylindrical center of circle of this adapter sleeve and the physics reading centres of laser pickoff.
9. deep hole verticality laser measurement system as claimed in claim 8, it is characterized in that, the inner circle center of circle and the cylindrical center of circle of described spacer shell (4) are concentric; The excircle dimension of this spacer shell (4) with matched by the inner circle size of sounding hole (6), the excircle dimension of the inner circle size of this spacer shell (4) and the adapter sleeve of laser position pick-up unit (3) matches.
10. the method utilizing laser measurement system as claimed in claim 1 to measure deep hole verticality, is characterized in that, specifically comprises following steps:
Step 1, generating laser (2) is mounted in hand-held vertical support (1);
Described hand-held vertical support (1) comprises mutual vertically disposed bearing seat body (11) and bearing datum plate (12); The bottom of described bearing seat body (11) is provided with limiting plate (15), spring bonnet (14) and one end and is fixedly connected on limit spring (13) on described spring bonnet (14);
The bottom of described generating laser (2) is provided with the pinch plate (22) protruded both sides;
Described generating laser (2) is arranged in the bearing seat body (11) of hand-held vertical support (1), described pinch plate (22) and the mutual buckle of limiting plate (15) are with the setting position of fixed laser transmitter (2), screw described spring bonnet (14), limit spring (13) is withstood the bottom pinch plate (22) of generating laser (2), make the front end emission head (21) of generating laser (2) expose outside in hand-held vertical support (1);
Step 2, the front end emission head (21) of generating laser (2) to be inserted by one end of sounding hole (6), the some steel balls (16) making the front-end surface of the bearing datum plate (12) of hand-held vertical support (1) inlay setting all with tested reference field (7) abutting contact;
Step 3, spacer shell (4) to be inserted by the other end of sounding hole (6), and laser position pick-up unit (3) is arranged in this spacer shell (4);
Step 4, open generating laser (2) launch collimation laser, the axis of this collimation laser is coaxial with the cylindrical of generating laser (2), it is through being received by the laser pickoff of sounding hole (6) by laser position pick-up unit (3), the position deviation coordinate figure of incident laser and this laser pickoff physical centre shows over the display by this laser pickoff, thus measurement obtains by the verticality of sounding hole (6) relative to tested reference field (7).
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| CN118049941A (en) * | 2024-04-16 | 2024-05-17 | 成都飞机工业（集团）有限责任公司 | Hole perpendicularity measuring device and measuring method based on two-dimensional position sensor |
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