CN104236599A - One-dimensional raster scanning measuring head - Google Patents
One-dimensional raster scanning measuring head Download PDFInfo
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- CN104236599A CN104236599A CN201410482344.0A CN201410482344A CN104236599A CN 104236599 A CN104236599 A CN 104236599A CN 201410482344 A CN201410482344 A CN 201410482344A CN 104236599 A CN104236599 A CN 104236599A
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- runner
- chaining pin
- rotating shaft
- infrabasal plate
- grating
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Abstract
The invention provides a one-dimensional raster scanning measuring head. The one-dimensional raster scanning measuring head comprises a lower substrate, a measuring pin installation turning wheel, a tensioning turning wheel, a measuring pin, a flexible steel belt, a tensioning spring, a raster ruler and a raster ruler reading head; the measuring pin drives the measuring pin installation turning wheel to appropriately rotate, the flexible steel belt and the raster ruler on the flexible steel belt are accordingly driven to move relative to the raster ruler reading head, the position variable quantity of the measuring pin is accordingly converted into the reading variable quantity of the raster ruler, and the detection aim of the measuring head is achieved. According to the one-dimensional raster scanning measuring head, continuous and sensitive motions of the measuring pin are achieved through the traction capacity and the deformation recovery capacity of the tensioning spring; the one-dimensional raster scanning measuring head competes detection depending on the mechanical transmission principle and the raster optical principle rather than the self-inductance and mutual-inductance detection principle, the detection sensitivity is high, the anti-interference capacity is high, the structure is simple, the one-dimensional raster scanning measuring head is easy to implement, and the position variable quantity of the measuring head in a large scope can be measured.
Description
Technical field
The invention belongs to precision sweep fields of measurement, be specifically related to a kind of one-dimensional grating scanning feeler.
Background technology
Gauge head relatively more conventional is at present inductance probe, inductance probe utilizes the change of the self neutralizing frequency of coil to realize a kind of device measured, and such measuring head structure is simple and reliable, not high to operating environment requirements, resolving power is higher, but it is low that its shortcoming is response frequency, quick kinetic measurement should not be used for, output signal as analog signals, be vulnerable to interference, and inductance probe range is little, be generally less than 0.1 centimetre, be difficult to the detection demand of satisfied large variable quantity.
Summary of the invention
The object of the present invention is to provide a kind of one-dimensional grating scanning feeler.
For achieving the above object, present invention employs following technical scheme:
This gauge head comprises infrabasal plate, runner installed by chaining pin, tension runner, chaining pin, flexible steel band, back-moving spring, grating scale and grating ruler reading head, described chaining pin installation runner and tension runner are arranged at the two ends on infrabasal plate respectively, the outboard end that chaining pin installs runner with chaining pin is connected, chaining pin is installed the medial extremity of runner and is connected with one end of back-moving spring, the other end of back-moving spring is connected with the medial extremity of tension runner, chaining pin installation runner outboard end is fixed on circumferentially in one end of flexible steel band, the other end is fixed on tension runner outboard end circumferentially, grating scale is arranged in flexible steel band, grating ruler reading head is arranged at chaining pin and installs between runner and tension runner, grating ruler reading head is relative with grating scale.
Described flexible steel band is two, and two flexible steel band form the loop configuration of installing runner and tension runner outboard end circumference separately around chaining pin, and two flexible steel band are respectively arranged with grating scale, and grating scale is relative with respective grating ruler reading head.
Described infrabasal plate is provided with bar hole, and grating ruler reading head is connected with bar hole.
The distance that described chaining pin is installed between runner and tension runner is adjusted by translation tension runner.
Described gauge head also comprises the position-limit mechanism installing runner rotational angle for limiting chaining pin.
Described position-limit mechanism comprises the limited block be arranged on infrabasal plate and the stop screw coordinated with limited block be arranged on chaining pin installation runner.
Described limited block is two, and two limited blocks install runner both sides with chaining pin oscillation centre position for axis of symmetry is arranged in chaining pin respectively, two limited blocks respectively be arranged at chaining pin two stop screw corresponding matching on runner be installed.
Described gauge head also comprises upper substrate, upper substrate and infrabasal plate are oppositely arranged, the first rotating shaft and the second rotating shaft is provided with between upper and lower substrate, first rotating shaft and the second rotating shaft are respectively arranged with precision bearing, chaining pin is installed runner and is connected with the first rotating shaft by corresponding precision bearing, and tension runner is connected with the second rotating shaft by corresponding precision bearing.
Described upper substrate and infrabasal plate offer bar shape trench hole respectively, the two ends of the second rotating shaft lay respectively in corresponding bar shape trench hole, be provided with two in bar shape trench hole for clamping the arc backing plate of the second rotating shaft, the inner concave arc surface of arc backing plate is pressed in the second rotating shaft circumferentially by the adjustment bolt top be arranged on upper substrate and infrabasal plate.
Described upper substrate and infrabasal plate are three-back-shaped hollow substrate, an arc backing plate in same bar shape trench hole is connected with the adjustment bolt extending outward into bar shape trench hole from three-back-shaped hollow substrate inside edge, and another arc backing plate in same bar shape trench hole is connected with the adjustment bolt extending inward into bar shape trench hole from three-back-shaped hollow substrate outer edge.
Beneficial effect of the present invention is embodied in:
The present invention drives chaining pin installation runner to carry out appropriateness by chaining pin and rotates, and then cause flexible steel band and on grating scale move relative to grating ruler reading head, thus the location variation of chaining pin is changed into the variable quantity of grating scale reading, realize the testing goal of gauge head; The present invention realizes continuous, the sensitive action of chaining pin by the recoverable force ability of back-moving spring, do not rely on self neutralizing frequency Cleaning Principle, but rely on the optical principle of mechanical drive principle and grating to complete detection, not only detection sensitivity is high but also antijamming capability is strong, structure is simple, easy realization, and the measurement that can realize probe location variable quantity on a large scale, its range can reach several centimetres.
The present invention reads the change of probe location respectively by two cover grating ruler reading heads and corresponding grating scale, can be improved accuracy and the reliability of detection by the mode of averaging further.
Accompanying drawing explanation
Fig. 1 is one of structural representation of the present invention;
Fig. 2 is structural representation two of the present invention;
Fig. 3 is the connection diagram of the second rotating shaft of the present invention;
Fig. 4 be chaining pin move to forward (X+) spacing time schematic diagram;
Fig. 5 be chaining pin move to negative sense (X-) spacing time schematic diagram;
In figure: 1 for infrabasal plate, 2-1 be the first rotating shaft, 2-2 be the second rotating shaft, 3 is flexible steel band, 4 be grating ruler reading head, 5 be limited block, 6 be grating scale, 7 be back-moving spring, 8 be precision bearing, 9 for chaining pin, runner, 10 is installed and is chaining pin, 12 is upper substrate, 14 is arc backing plate, 15 is stop screw, 16 is installation column for tension runner, 13 for adjustment bolt, 11.
Embodiment
Below in conjunction with drawings and Examples, invention is elaborated.
See Fig. 1, one-dimensional grating scanning feeler of the present invention comprises infrabasal plate 1, runner 9 installed by chaining pin, tension runner 12, chaining pin 11, flexible steel band 3, back-moving spring 7, grating scale 6 and grating ruler reading head 4, described chaining pin installation runner 9 and tension runner 12 are arranged at the two ends on infrabasal plate 1 respectively, the outboard end that chaining pin 11 installs runner 9 with chaining pin is connected, the medial extremity that runner 9 installed by chaining pin is connected with one end of back-moving spring 7, the other end of back-moving spring 7 is connected with the medial extremity of tension runner 12, chaining pin installation runner 9 outboard end is fixed on circumferentially in one end of flexible steel band 3, the other end is fixed on tension runner 12 outboard end circumferentially, grating scale 6 is arranged in flexible steel band 3, grating ruler reading head 4 is arranged at chaining pin and installs between runner 9 and tension runner 12, grating ruler reading head 4 is relative with grating scale 6.Described flexible steel band 3 is two, and two flexible steel band form the loop configuration of installing runner 9 and the respective outboard end circumference of tension runner 12 around chaining pin, and two flexible steel band are respectively arranged with grating scale 6, and grating scale 6 is relative with respective grating ruler reading head 4.Described infrabasal plate 1 is provided with bar hole, and grating ruler reading head 4 is connected with bar hole, along the position location of bar hole adjustment grating ruler reading head, realizes the object of adjustment grating ruler reading head and the spacing of corresponding grating scale.Described gauge head also comprises the position-limit mechanism installing runner rotational angle for limiting chaining pin.Described position-limit mechanism comprises the limited block 5 be arranged on infrabasal plate 1 and the stop screw 15 coordinated with limited block 5 be arranged on chaining pin installation runner 9.Described limited block 5 is two, and two limited blocks install runner 9 both sides with chaining pin oscillation centre position for axis of symmetry is arranged in chaining pin respectively, two limited blocks respectively be arranged at chaining pin two stop screw 15 corresponding matching on runner 9 be installed.Install in runner rotation at chaining pin, limited block changes by the position adjusting limited block with the contact position (restraining position) of corresponding stop screw.
See Fig. 2 and Fig. 3, described gauge head also comprises upper substrate 13, upper substrate 13 and infrabasal plate 1 are oppositely arranged, the first rotating shaft 2-1 and the second rotating shaft 2-2 is provided with between upper and lower substrate, first rotating shaft 2-1 and the second rotating shaft 2-2 is respectively arranged with precision bearing 8, chaining pin is installed runner 9 and is connected with the first rotating shaft 2-1 by corresponding precision bearing, and tension runner 12 is connected with the second rotating shaft 2-2 by corresponding precision bearing.Described upper substrate 13 and infrabasal plate 1 offer bar shape trench hole respectively, the two ends of the second rotating shaft 2-2 lay respectively in corresponding bar shape trench hole that (one end of the second rotating shaft is positioned at the bar shape trench hole on upper substrate, the other end is positioned at the bar shape trench hole on infrabasal plate), be provided with two in each bar shape trench hole for clamping the arc backing plate 14 of the second rotating shaft, the inner concave arc surface of arc backing plate is pressed in the second rotating shaft 2-2 circumferentially by adjustment bolt 10 top be arranged on upper substrate 13 and infrabasal plate 1.Described upper substrate 13 and infrabasal plate 1 are three-back-shaped hollow substrate, an arc backing plate 14 in same bar shape trench hole is connected with the adjustment bolt 10 extending outward into bar shape trench hole from three-back-shaped hollow substrate inside edge, and another arc backing plate 14 in same bar shape trench hole is connected with the adjustment bolt 10 extending inward into bar shape trench hole from this three-back-shaped hollow substrate outer edge.
Principle of work of the present invention is as follows:
Before the use, first by adjustment chaining pin, the distance tensioning flexible steel band 3 between runner 9 and tension runner 12 is installed, ensure accuracy and the reliability of detection, the distance that described chaining pin is installed between runner 9 and tension runner 12 is adjusted by translation tension runner 12.Concrete method of adjustment is: adjust the adjustment bolt 10 be positioned on upper and lower substrate, adjustment bolt outwards or is inwardly moved simultaneously, realizes the translation of the second rotating shaft 2-2, thus reaches the object of translation tension runner 12.
Gauge head in use, chaining pin 11 can within the specific limits centrally position swing, if chaining pin forward swings, see Fig. 4, then drive chaining pin that runner 9 is installed to rotate clockwise, and then drive tension runner 12 to rotate clockwise by flexible steel band 3, cause back-moving spring 7 that certain tensile deformation occurs, when the position of chaining pin contact measurand changes, chaining pin can action further: or make chaining pin that runner 9 clockwise movement is further installed, or under the retracted for clearance effect of back-moving spring, make chaining pin that runner is installed rotate counterclockwise, thus cause grating scale 6 to change relative to the relative position of grating ruler reading head 4, and by grating ruler reading head exporting change amount testing result, when chaining pin moves to forward swing extreme position, the stop screw 15 that chaining pin is installed on runner contacts with the limited block of on infrabasal plate 15, make chaining pin that runner is installed cannot rotate clockwise further, reach spacing object, realize range control.If chaining pin negative sense swings, see Fig. 5, then drive chaining pin that runner 9 is installed to rotate counterclockwise, and then drive tension runner 12 to rotate counterclockwise by flexible steel band 3, cause back-moving spring 7 that certain tensile deformation occurs, when the position of chaining pin contact measurand changes, chaining pin can action further: or make chaining pin that runner 9 counterclockwise movement is further installed, or under the retracted for clearance effect of back-moving spring, make chaining pin that runner is installed rotate clockwise, thus cause grating scale to change relative to the relative position of grating ruler reading head, and by grating ruler reading head exporting change amount testing result, when chaining pin moves to negative sense swing extreme position, another stop screw 15 that chaining pin is installed on runner contacts with another limited block 5 on infrabasal plate, make chaining pin that runner is installed cannot rotate counterclockwise further, reach spacing object, realize range control.
Embodiment
A kind of one-dimensional grating scanning feeler, comprises infrabasal plate, chaining pin, precision bearing, chaining pin installation runner, tension runner, flexible steel band, high precision grating scale, grating ruler reading head, back-moving spring, limited block, rotating shaft, upper substrate.Precision bearing is installed in rotating shaft, rotating shaft is installed between upper substrate and infrabasal plate, chaining pin is installed runner and is installed on corresponding precision bearing respectively with tension runner, chaining pin is installed on chaining pin and installs on runner, flexible steel band is installed on chaining pin by screw and installs between runner and tension runner, resolution is that the high precision grating scale of 0.05 μm is installed in flexible steel band, grating ruler reading head is installed on infrabasal plate, back-moving spring is installed on chaining pin and installs between runner and tension runner, two limited blocks are installed on infrabasal plate, and lay respectively at the both sides that runner installed by chaining pin, upper substrate is installed on the installation column on infrabasal plate, protection gauge head inner structure.
In described one-dimensional grating scanning feeler, flexible steel is with two, be placed in chaining pin respectively and runner and the both sides of straining runner are installed, two pieces resolution is that the high precision grating scale of 0.05 μm is placed in two flexible steel band respectively, two pieces grating ruler reading head is installed on infrabasal plate respectively by strip hole, distance between grating ruler reading head and high precision grating scale can be regulated, grating ruler reading head reads the change information of probe location by grating scale, can be adjusted the rotating shaft position installing tension runner by adjustment bolt, and then realize the bearing of installation chaining pin installation runner and the adjustment of straining the spacing of the bearing of runner is installed, between adjustment bolt and rotating shaft, arc backing plate is installed, to increase contact area.Infrabasal plate is provided with the limited block (relative to chaining pin oscillation centre positional symmetry) that two positions, left and right are adjustable, to be contacted with stop screw by limited block and realize the spacing of gauge head (chaining pin), to avoid gauge head to exceed range, gauge head is caused to damage.
Claims (10)
1. an one-dimensional grating scanning feeler, it is characterized in that: this gauge head comprises infrabasal plate (1), runner (9) installed by chaining pin, tension runner (12), chaining pin (11), flexible steel band (3), back-moving spring (7), grating scale (6) and grating ruler reading head (4), described chaining pin installation runner (9) and tension runner (12) are arranged at the two ends on infrabasal plate (1) respectively, the outboard end that runner (9) installed by chaining pin (11) and chaining pin is connected, the medial extremity that runner (9) installed by chaining pin is connected with one end of back-moving spring (7), the other end of back-moving spring (7) is connected with the medial extremity of tension runner (12), chaining pin installation runner (9) outboard end is fixed on circumferentially in one end of flexible steel band (3), the other end is fixed on tension runner (12) outboard end circumferentially, grating scale (6) is arranged in flexible steel band (3), grating ruler reading head (4) is arranged at chaining pin and installs between runner (9) and tension runner (12), grating ruler reading head (4) is relative with grating scale (6).
2. a kind of one-dimensional grating scanning feeler according to claim 1, it is characterized in that: described flexible steel band (3) is two, article two, flexible steel band forms the loop configuration of installing runner (9) and the respective outboard end circumference of tension runner (12) around chaining pin, article two, flexible steel band is respectively arranged with grating scale (6), grating scale (6) is relative with respective grating ruler reading head (4).
3. a kind of one-dimensional grating scanning feeler according to claim 1, it is characterized in that: (1) is provided with bar hole to described infrabasal plate, grating ruler reading head (4) is connected with bar hole.
4. a kind of one-dimensional grating scanning feeler according to claim 1, is characterized in that: described chaining pin is installed runner (9) and the distance strained between runner (12) and strained runner (12) by translation and adjust.
5. a kind of one-dimensional grating scanning feeler according to claim 1, is characterized in that: described gauge head also comprises the position-limit mechanism installing runner rotational angle for limiting chaining pin.
6. a kind of one-dimensional grating scanning feeler according to claim 5, is characterized in that: described position-limit mechanism comprises the limited block (5) that is arranged on infrabasal plate (1) and is arranged at chaining pin installs the stop screw (15) coordinated with limited block (5) on runner (9).
7. a kind of one-dimensional grating scanning feeler according to claim 6, it is characterized in that: described limited block (5) is two, two limited blocks install runner (9) both sides with chaining pin oscillation centre position for axis of symmetry is arranged in chaining pin respectively, two limited blocks respectively be arranged at chaining pin two stop screw (15) corresponding matching on runner (9) be installed.
8. a kind of one-dimensional grating scanning feeler according to claim 1, it is characterized in that: described gauge head also comprises upper substrate (13), upper substrate (13) and infrabasal plate (1) are oppositely arranged, on, the first rotating shaft (2-1) and the second rotating shaft (2-2) is provided with between infrabasal plate, first rotating shaft (2-1) and the second rotating shaft (2-2) are respectively arranged with precision bearing (8), chaining pin is installed runner (9) and is connected with the first rotating shaft (2-1) by corresponding precision bearing, tension runner (12) is connected with the second rotating shaft (2-2) by corresponding precision bearing.
9. a kind of one-dimensional grating scanning feeler according to claim 8, it is characterized in that: described upper substrate (13) and infrabasal plate (1) offer bar shape trench hole respectively, the two ends of the second rotating shaft (2-2) lay respectively in corresponding bar shape trench hole, be provided with two in bar shape trench hole for clamping the arc backing plate (14) of the second rotating shaft, the inner concave arc surface of arc backing plate is pressed in the second rotating shaft (2-2) circumferentially by adjustment bolt (10) top be arranged on upper substrate (13) and infrabasal plate (1).
10. a kind of one-dimensional grating scanning feeler according to claim 9, it is characterized in that: described upper substrate (13) and infrabasal plate (1) are three-back-shaped hollow substrate, an arc backing plate (14) in same bar shape trench hole is connected with the adjustment bolt (10) extending outward into bar shape trench hole from three-back-shaped hollow substrate inside edge, and another arc backing plate (14) in same bar shape trench hole is connected with the adjustment bolt (10) extending inward into bar shape trench hole from three-back-shaped hollow substrate outer edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410482344.0A CN104236599B (en) | 2014-09-19 | 2014-09-19 | A kind of one-dimensional grating scanning feeler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410482344.0A CN104236599B (en) | 2014-09-19 | 2014-09-19 | A kind of one-dimensional grating scanning feeler |
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| Publication Number | Publication Date |
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| CN104236599A true CN104236599A (en) | 2014-12-24 |
| CN104236599B CN104236599B (en) | 2016-06-08 |
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| CN201410482344.0A Expired - Fee Related CN104236599B (en) | 2014-09-19 | 2014-09-19 | A kind of one-dimensional grating scanning feeler |
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Cited By (2)
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| CN105300283A (en) * | 2015-11-12 | 2016-02-03 | 西安交通大学 | One-dimension air flotation raster scanning measuring head |
| CN109631968A (en) * | 2018-12-05 | 2019-04-16 | 西安交通大学 | A kind of floating air bearing comprehensive function two-dimensional scanning gauge head of magnetic |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300283A (en) * | 2015-11-12 | 2016-02-03 | 西安交通大学 | One-dimension air flotation raster scanning measuring head |
| CN105300283B (en) * | 2015-11-12 | 2016-07-06 | 西安交通大学 | A kind of one-dimensional air supporting raster scanning gauge head |
| CN109631968A (en) * | 2018-12-05 | 2019-04-16 | 西安交通大学 | A kind of floating air bearing comprehensive function two-dimensional scanning gauge head of magnetic |
| CN109631968B (en) * | 2018-12-05 | 2020-05-19 | 西安交通大学 | Magnetic levitation and air floatation combined action two-dimensional scanning measuring head |
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| Publication number | Publication date |
|---|---|
| CN104236599B (en) | 2016-06-08 |
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