CN109470474A - Laser beam pitch error detection device - Google Patents
Laser beam pitch error detection device Download PDFInfo
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- CN109470474A CN109470474A CN201811475250.5A CN201811475250A CN109470474A CN 109470474 A CN109470474 A CN 109470474A CN 201811475250 A CN201811475250 A CN 201811475250A CN 109470474 A CN109470474 A CN 109470474A
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- laser head
- laser
- laser beam
- tooth
- error detection
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- 238000001514 detection method Methods 0.000 title claims abstract description 37
- 230000001360 synchronised effect Effects 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims description 10
- 230000003068 static effect Effects 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000012937 correction Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000033001 locomotion Effects 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/021—Gearings
-
- 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
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The present invention relates to a kind of laser beam pitch error detection devices, belong to Technology of Precision Measurement field.The device includes tooth pitch acquisition device, laser head controller, synchronous acquisition module, pulse adjusting circuit, industrial computer；The tooth pitch acquisition device includes laser head I (3), laser head II (4), close switch (5), fan dial (6), vernier caliper (7), shaft (8) and bracket base (9).The present invention is obtained positional distance information, is realized the high efficiency error-detecting to tooth pitch using the continuous scanning tooth by tooth detection of high precision laser range finder without mechanical movement.
Description
Technical field
The invention belongs to Technology of Precision Measurement fields, are related to laser ranging technique and synchronous acquisition technology more particularly to one
Kind laser beam pitch error detection device.
Background technique
Existing gear testing instrument is generally unsuitable for medium-and-large-sized accuracy of gear detection, medium-and-large-sized accuracy of gear detection one
As using lathe additional detection means carry out tooth pitch detection.Prior art shortcoming: a kind of scheme is heavy duty machine tools in machine examination
Examining system, system structure complicated composition are high to lathe own mechanical precision and motion control accuracy requirement, so that manufacture
The high threshold of cost and technical difficulty, general enterprises are difficult to reach.Second scheme is to use peripheral hardware additional detection means, by
Gauge head has mechanical movement when detection device work, and mechanism repeatable accuracy is not easy to guarantee, the consistency of testing result is poor, difficult
To obtain smart testing result.
Summary of the invention
In view of this, being transported the purpose of the present invention is to provide a kind of laser beam pitch error detection device using without machinery
The continuous scanning tooth by tooth detection of dynamic high precision laser range finder, obtains positional distance information, realizes the high efficiency error to tooth pitch
Detection.
In order to achieve the above objectives, the invention provides the following technical scheme:
A kind of laser beam pitch error detection device, including tooth pitch acquisition device, laser head controller, synchronous acquisition mould
Circuit, industrial computer are adjusted in block, pulse；The tooth pitch acquisition device includes laser head I (3), laser head II (4), approaches and open
Close (5), fan dial (6), vernier caliper (7), shaft (8) and bracket base (9)；
The laser head I (3) and laser head II (4) are respectively connected to the laser head controller, the laser head control
Device is successively connect with synchronous acquisition module and industrial computer；It is described close to switch (5) by pulse adjusting circuit connection to same
Acquisition module is walked, for determining acquisition position, forms pulse, triggering collection card is acquired.
The tooth pitch acquisition device acquires displacement data by laser head I (3), laser head II (4)；The laser head control
Device is for controlling laser head I (3) and laser head II (4) synchronous acquisition；Pulse adjusting circuit for it is anti-interference,
It rejects burr, promote pulse front edge steeply inclined degree, that is, shorten the electric frequency conversion time of height；The synchronous acquisition module is sharp for controlling
Bare headed I (3), laser head II (4) acquire range data at same time point, are convenient for data comparison.
Further, the laser head I (3) and laser head II (4), which are parallel to each other, is installed at the top of shaft (8), in same
Laterally；The shaft (8) is installed vertically on bracket base (9)；The fan dial (6) and vernier caliper (7) respectively with
Laser head I (3) and laser head II (4) are coaxially installed on shaft (8).
Further, the tooth pitch acquisition device further includes operation handle (10), rotary shaft (11), fan-shaped turbine (12) and snail
Bar (13)；The line of centres of described two rotary shafts (11) is parallel with gear compound graduation circle tangent line；Described two fan dials
(6) in zero degree, two laser is parallel with rotating shaft center's line.
Further, it is connected between the synchronous acquisition module and the industrial computer by PCIe bus.
Further, the detection method of shown laser beam pitch error detection device, specifically includes the following steps:
(1) laser beam detection point and laser head emitter window are apart providing within detecting distance range that adjustment makes its two o'clock
It is equidistant with outside circle, and substantially vertical with flank profil face, and as close as possible to reference circle position；
(2) tangent line of laser beam and reference circle forms " α " and " β " 2 angles, angle value fan dial and trip
Mark instruction；
(3) light beam of laser head I and II makees incidence angle adjustment in vertical direction, makes secondly a incident point is same on the flank of tooth
On one horizontal plane；
(4) close to switch, in the incident point of 2 laser heads, correction is finished, and tested gear is adjusted under remaining static
It is whole.
Further, in the step S4, the tested gear method of adjustment being adjusted that remains static down is specific
Are as follows: close to switch cylindrical end identity distance crest top land 1mm or so (Φ 12mm type), rotation side when then close to switch to gear testing
It is mobile to the flank profil face of side, until the critical point that indicator light just extinguishes position is fixed.
The beneficial effects of the present invention are:
(1) using the continuous scanning tooth by tooth detection of high-precision laser range finder, high efficiency is realized.Laser head is transported without machinery
It is dynamic, no resetting error.
(2) synchronous acquisition technology is used, measurement error is reduced.
(3) the collection point position on flank profil face is obtained close to tooth top inductive impulse using proximity sensor.
(4) angle between laser beam and reference circle tangent line is read from dial, calculates tooth pitch (reference circle automatically by computer
Tangential direction) precise information.
(5) 2 laser heads can adjust separately both horizontally and vertically angle, acquiring technology requirement by mechanical structure device
Laser beam projects point.
(6) 2 angle-adjusting mechanisms for using worm sector, solve the interference problem of two between centers.
(7) angle vernier scale is used, reading angular value is made to have higher resolution ratio.
(8) using the adjustable angle mounting means of top (bottom) face Relative vertical of 2 laser heads, reach laser beam incidence angle
It is required that and the adjustable technical requirements in incident point horizontal position.
(9) laser beam and gear compound graduation circle tangent line are in an angle, avoid light blocking interference region, meet laser beam and enter in flank profil face
The technical requirements of firing angle.
(10) absolute value of gear pitch error is obtained using comparison method.
(11) square width is set in by 0.1ms or so using rising edge pulse widening circuit, determined on flank profil face
Acquisition position width range.
Detailed description of the invention
In order to keep the purpose of the present invention, technical scheme and beneficial effects clearer, the present invention provides following attached drawing and carries out
Illustrate:
Fig. 1 is detection device system framework figure of the present invention；
Fig. 2 is tooth pitch acquisition device structure chart；
Fig. 3 is that laser beam level angle adjusts schematic diagram；
Fig. 4 is the electrical connection diagram of detection device of the present invention；
Fig. 5 is DTR triggering collection mode waveform；
Appended drawing reference: 1- reference circle；2- outside circle；3- laser head I；4- laser head II；The close switch of 5-；6- sector scale
Disk；7- vernier scale；8- shaft；9- bracket base；10- operation handle；11- rotary shaft；12- worm sector；13- worm screw；A,B
Point is laser beam detection point.
Specific embodiment
Below in conjunction with attached drawing, a preferred embodiment of the present invention will be described in detail.
As shown in FIG. 1 to 3, laser beam pitch error detection device of the present invention, including tooth pitch acquisition device, laser
Circuit, industrial computer are adjusted in head controller, synchronous acquisition module, pulse；The tooth pitch acquisition device include laser head I 3,
Laser head II 4, close switch 5, fan dial 6, vernier caliper 7, shaft 8 and bracket base 9.
The laser head I 3 and laser head II 4, which are parallel to each other, is installed on 8 top of shaft, in same lateral；The shaft 8
It is installed vertically on bracket base 9；The fan dial 6 and vernier caliper 7 are same with laser head I 3 and laser head II 4 respectively
Axis is installed in shaft 8.
The laser head I 3 and laser head II 4 are respectively connected to the laser head controller, the laser head controller according to
It is secondary to be connect with synchronous acquisition module and industrial computer；It is described that circuit connection is adjusted to synchronous acquisition by pulse close to switch 5
Module forms pulse, triggering synchronous acquisition module is acquired for determining acquisition position.
The tooth pitch acquisition device acquires displacement data by laser head I 3, laser head II 4；The laser head controller is used
In control laser head I 3 and II 4 synchronous acquisition of laser head；Pulse adjusting circuit for it is anti-interference, reject burr, mention
Pulse front edge steeply inclined degree is risen, that is, shortens the electric frequency conversion time of height；The synchronous acquisition module is for controlling laser head I 3, swashing
Shaven head II 4 acquires range data at same time point, is convenient for data comparison.
The tooth pitch acquisition device further includes operation handle 10, rotary shaft 11, fan-shaped turbine 12 and worm screw 13；It is described two
The line of centres of rotary shaft 11 is parallel with gear compound graduation circle tangent line；Described two fan dials 6 are in zero degree, two laser
Beam is parallel with rotating shaft center's line.
Embodiment one:
As shown in Figure 4, Figure 5, the laser head controller in laser beam pitch error detection device of the present invention uses HL-
C2C, laser head use HL-211, and synchronous acquisition module uses A/D capture card.AD capture card is inserted directly into industrial computer
PCIe slot, DTR are trigger collection input port, and DI 0 is numeral input mouth；The input pulse of DI 0 is as counter counts rapid pulse
Punching, record have detected the number of teeth, and when counter reaches setting value (number of gear teeth), sending instruction, gear detection in one week is tied
Beam.
The laser beam pitch error detection device mounting and adjusting process:
(1) A, B point are laser beam detection point, with laser beam detection point and laser head emitter window at a distance of in regulation detecting distance
Within range, adjustment is equidistant its two o'clock with outside circle, and substantially vertical with flank profil face, and as close as possible to reference circle position
It sets；
(2) tangent line of laser beam and reference circle forms " α " and " β " 2 angles, angle value fan dial and trip
Mark instruction；
(3) light beam of laser head I and II makees incidence angle adjustment in vertical direction, makes secondly a incident point is same on the flank of tooth
On one horizontal plane；
(4) close to switch, in the incident point of 2 laser heads, correction is finished, and tested gear is adjusted under remaining static
It is whole.Method of adjustment are as follows: close to switch cylindrical end identity distance crest top land 1mm or so (Φ 12mm type), surveyed then close to switch to gear
The flank profil face of direction of rotation side is mobile when examination, until the critical point that indicator light just extinguishes position is fixed.
Fig. 3 show left flank of tooth installation adjusting method, and method and step is identical when detecting the right flank of tooth, contrary.
Finally, it is stated that preferred embodiment above is only used to illustrate the technical scheme of the present invention and not to limit it, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (6)
1. a kind of laser beam pitch error detection device, which is characterized in that the device includes tooth pitch acquisition device, laser head control
Circuit, industrial computer are adjusted in device, synchronous acquisition module, pulse；The tooth pitch acquisition device includes laser head I (3), laser head
II (4), close switch (5), fan dial (6), vernier caliper (7), shaft (8) and bracket base (9)；
The laser head I (3) and laser head II (4) are respectively connected to the laser head controller, the laser head controller according to
It is secondary to be connect with synchronous acquisition module and industrial computer；It is described to be adopted close to switch (5) by pulse adjusting circuit connection to synchronizing
Collect module, for determining acquisition position, forms pulse, triggering synchronous acquisition module is acquired；
The tooth pitch acquisition device acquires displacement data by laser head I (3), laser head II (4)；The laser head controller is used
In control laser head I (3) and laser head II (4) synchronous acquisition；The pulse adjusting circuit is for anti-interference, rejecting hair
Thorn promotes pulse front edge steeply inclined degree, that is, shortens the electric frequency conversion time of height；The synchronous acquisition module is for controlling laser head I
(3), laser head II (4) acquires range data at same time point, is convenient for data comparison.
2. laser beam pitch error detection device according to claim 1, which is characterized in that the laser head I (3) and swash
Bare headed II (4), which are parallel to each other, to be installed at the top of shaft (8), in same lateral；The shaft (8) is installed vertically on bracket base
(9) on；The fan dial (6) and vernier caliper (7) are coaxially installed on laser head I (3) and laser head II (4) respectively to be turned
On axis (8).
3. laser beam pitch error detection device according to claim 2, which is characterized in that the tooth pitch acquisition device is also
Including operation handle (10), rotary shaft (11), fan-shaped turbine (12) and worm screw (13)；The center of described two rotary shafts (11) connects
Line is parallel with gear compound graduation circle tangent line；In zero degree, two laser and rotating shaft center connect described two fan dials (6)
Line is parallel.
4. laser beam pitch error detection device according to claim 1, which is characterized in that the synchronous acquisition module with
It is connected between the industrial computer by PCIe bus.
5. the detection method of laser beam pitch error detection device according to claim 1, which is characterized in that the detection side
Method specifically includes the following steps:
(1) laser beam detection point and laser head emitter window are apart providing within detecting distance range that adjustment makes its two o'clock and tooth
Tip circle is equidistant, and substantially vertical with flank profil face, and as close as possible to reference circle position；
(2) tangent line of laser beam and reference circle forms " α " and " β " 2 angles, and angle value fan dial and vernier refer to
Show；
(3) light beam of laser head I and II makees incidence angle adjustment in vertical direction, makes secondly a incident point is same water on the flank of tooth
In plane；
(4) close to switch, in the incident point of 2 laser heads, correction is finished, and tested gear, which remains static down, to be adjusted.
6. laser beam pitch error detection method according to claim 5, which is characterized in that described in the step S4
Tested gear remains static down the method for adjustment being adjusted specifically: left close to switch cylindrical end identity distance crest top land 1mm
The right side, the flank profil face of direction of rotation side is mobile when then close to switch to gear testing, until indicator light just extinguishes facing for position
Boundary's point is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811475250.5A CN109470474B (en) | 2018-12-04 | 2018-12-04 | Laser beam tooth pitch error detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811475250.5A CN109470474B (en) | 2018-12-04 | 2018-12-04 | Laser beam tooth pitch error detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109470474A true CN109470474A (en) | 2019-03-15 |
| CN109470474B CN109470474B (en) | 2024-06-11 |
Family
ID=65675539
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811475250.5A Active CN109470474B (en) | 2018-12-04 | 2018-12-04 | Laser beam tooth pitch error detection device |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1500480A (en) * | 1976-01-28 | 1978-02-08 | Bjuro Vzaimozameny I Metalloob | Method and device for measuring pitch errors in gear wheels |
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| CN102322824A (en) * | 2011-05-31 | 2012-01-18 | 南京理工大学 | Dynamic measuring device for worm helix error and pitch error |
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-
2018
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|---|---|---|---|---|
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| JP2001027583A (en) * | 1999-07-15 | 2001-01-30 | Mitsubishi Motors Corp | Measuring apparatus for backlash |
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|---|---|
| CN109470474B (en) | 2024-06-11 |
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