CN203824893U - Monocrystalline silicon bar orientation detection device - Google Patents
Monocrystalline silicon bar orientation detection device Download PDFInfo
- Publication number
- CN203824893U CN203824893U CN201420129785.8U CN201420129785U CN203824893U CN 203824893 U CN203824893 U CN 203824893U CN 201420129785 U CN201420129785 U CN 201420129785U CN 203824893 U CN203824893 U CN 203824893U
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- Prior art keywords
- crystal orientation
- detecting sensor
- crystal
- guard shield
- rod
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Abstract
The utility model relates to the field of crystal growing furnaces, and aims to provide a monocrystalline silicon bar orientation detection device. The device is used for detecting the crystal orientation of a round monocrystalline silicon bar which is clamped on a cutting workbench, and comprises a bracket, a supporting arm, a crystal orientation detection sensor bracket, a cylinder, a fixed shield, a lifting shield and a crystal orientation detection sensor. The monocrystalline silicon bar orientation detection device can be used for automatically detecting the crystal orientation of the crystal bar clamped on the workbench by adopting a non-contact measurement method, has the advantages of high detection accuracy, quick response, short time consumption and automatic control, is simple in structure and low in cost, does not need manual participation, and is applicable to full-automatic control of a monocrystalline silicon bar streamline processing workshop.
Description
Technical field
The utility model is about crystal growing furnace field, particularly a kind of silicon single crystal rod crystal orientation pick-up unit.
Background technology
In solar module production run, with monocrystalline silicon, as the starting material of solar module, because having the feature that photoelectric transformation efficiency is high, it is more and more applied.
When producing solar battery sheet, first the silicon single crystal rod of monocrystal growing furnace growth to be cut into the short pole of certain length, and then short pole to be processed into after butt, grinding process to four jiaos be the square rod of circular arc, finally, again by square rod cutting flakiness, these thin slices have just become solar battery sheet after subsequent treatment.At monocrystalline silicon round rod, be processed in the process of square rod, require four crest lines of silicon single crystal rod to be retained in four vertex positions of square rod, the object of doing is like this in order to guarantee that the crystal orientation of crystal bar meets the technological requirement of cell piece.
In prior art, be that crystal bar is bonded on worktable, crystal orientation generally judges by human eye, and then excises the rim charge of non-crystal bar crest line position, and this detection method precision by naked eyes judgement crystal orientation is low, efficiency is low, operating personnel is required high.From now on, crystal bar processing will be taked continuous-flow type operation, crystal bar from blocking, butt, grinding, comprise that the processes such as logistics between these operations are all that robotization completes, do not need manual intervention.At this moment, when crystal bar packs into after butting machine, thereby the crystal orientation judgement butt position that how could automatically detect crystal bar becomes problem demanding prompt solution.
Utility model content
Fundamental purpose of the present utility model is to overcome deficiency of the prior art, and a kind of crystal orientation pick-up unit that can automatically detect the crystal orientation that is clamped in the crystal bar on worktable is provided.For solving the problems of the technologies described above, solution of the present utility model is:
A kind of silicon single crystal rod crystal orientation pick-up unit is provided, and the crystal orientation of the circular single crystal silicon rod for detection of clamping on butt worktable, comprises support, sway brace, crystal orientation detecting sensor support, cylinder, secure shroud, lifting guard shield, crystal orientation detecting sensor;
Sway brace is fixed on support, secure shroud is arranged on supporting walls, crystal orientation detecting sensor is arranged in secure shroud by crystal orientation detecting sensor support, crystal orientation detecting sensor, for by measuring circular single crystal silicon rod surface to the distance of measuring zero point, is carried out the crystal orientation judgement of circular single crystal silicon rod;
The middle part of secure shroud is provided with hole, cylinder one end is arranged on sway brace, the other end is through the hole at secure shroud middle part, and be connected with lifting guard shield by the piston rod of cylinder, piston rod drives lifting guard shield to move up and down, to complete the opening and closing of lifting guard shield, when lifting guard shield is closed, can crystal orientation detecting sensor be covered in lifting guard shield by moving down of lifting guard shield, when lifting guard shield is opened, can crystal orientation detecting sensor be exposed in lifting guard shield by moving on lifting guard shield.
As further improvement, described cylinder is the double acting single piston rod cylinder with guide pole.
As further improvement, described crystal orientation detecting sensor is laser range sensor.
As further improvement, described silicon single crystal rod crystal orientation pick-up unit is also provided with air jet pipe and air jet pipe bracing frame, and air jet pipe is fixed on cylinder by air jet pipe bracing frame; Air jet pipe is connected with source of the gas, and source of the gas, for pass into pressurized air in air jet pipe, has gas outlet on the tube wall of air jet pipe, and aligning crystal orientation, gas outlet detecting sensor, for clearing up the pollutant at detecting sensor Laser emission mouth place, crystal orientation.
As further improvement, on the tube wall of described air jet pipe, have 6 gas outlets.
As further improvement, described source of the gas adopts the pressurized air that pressure is 0.5MPa.
As further improvement, described sway brace is fixed by screw and support.
Compared with prior art, the beneficial effects of the utility model are:
Can automatically detect the crystal orientation that is clamped in the crystal bar on worktable, adopt contactless measurement, accuracy of detection is high, respond fast, consuming time short, can automatically control; Simple in structure, old low, do not need artificial participation, is applicable to the Automatic Control of silicon single crystal rod streamline job shop.
Accompanying drawing explanation
Fig. 1 is three-dimensional axonometric drawing of the present utility model.
Fig. 2 is air jet pipe schematic diagram of the present utility model.
Fig. 3 is course of work schematic diagram of the present utility model.
Reference numeral in figure is: 1 support; 2 secure shroud; 3 sway braces; 4 cylinders; 5 lifting guard shields; 6 air jet pipe bracing frames; 7 air jet pipes; 8 crystal orientation detecting sensors; 9 crystal orientation detecting sensor supports; 10 circular single crystal silicon rods.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail:
A kind of silicon single crystal rod crystal orientation pick-up unit as shown in Figure 1, the crystal orientation of the circular single crystal silicon rod 10 for detection of clamping on butt worktable, comprises support 1, sway brace 3, crystal orientation detecting sensor support 9, cylinder 4, secure shroud 2, lifting guard shield 5, crystal orientation detecting sensor 8, air jet pipe 7 and air jet pipe bracing frame 6.
Sway brace 3 is fixed by screws on support 1, and secure shroud 2 is arranged on supporting walls 3, and crystal orientation detecting sensor 8 is arranged in secure shroud 2 by crystal orientation detecting sensor support 9.Crystal orientation detecting sensor 8, for by measuring circular single crystal silicon rod 10 surfaces to the distance of measuring zero point, is carried out the crystal orientation judgement of circular single crystal silicon rod 10, and crystal orientation detecting sensor 8 adopts laser range sensor here.
The middle part of secure shroud 2 is provided with hole, cylinder 4 one end are arranged on sway brace 3, and the other end passes the hole at secure shroud 2 middle parts, and is connected with lifting guard shield 5 by the piston rod of cylinder 4, piston rod drives lifting guard shield 5 to move up and down, to complete the opening and closing of lifting guard shield 5.When lifting guard shield 5 is closed, can crystal orientation detecting sensor 8 be covered in lifting guard shield 5 by moving down of lifting guard shield 5; When lifting guard shield 5 is opened, can crystal orientation detecting sensor 8 be exposed in lifting guard shield 5 by moving on lifting guard shield 5.Here the double acting single piston rod cylinder that cylinder 4 adopts with guide pole.
Air jet pipe 7 is fixed on cylinder 4 by air jet pipe bracing frame 6, and air jet pipe 7 is connected with source of the gas, and source of the gas is for pass into pressurized air in air jet pipe 7, and source of the gas adopts the pressurized air that pressure is 0.5MPa.As shown in Figure 2, have 6 gas outlets on the tube wall of air jet pipe 7, aligning crystal orientation, gas outlet detecting sensor 8, for clearing up the pollutant at crystal orientation detecting sensor 8 Laser emission mouth places.
Crystal orientation detection method based on described a kind of silicon single crystal rod crystal orientation pick-up unit, can, with reference to shown in figure 3, specifically comprise the steps:
(1) pack circular single crystal silicon rod 10 into butt worktable, and circular single crystal silicon rod 10 is started with certain angular velocity rotation, the central axis of circular single crystal silicon rod 10 is rotation center;
(2) operation cylinder 4, stretches out the piston rod of cylinder 4, drives lifting guard shield 5 to rise, and exposes crystal orientation detecting sensor 8;
(3) open source of the gas, make pressurized air from the gas outlet ejection of air jet pipe 7, blow the pollutant at crystal orientation detecting sensor 8 Laser emission mouth places off;
(4) start crystal orientation detecting sensor 8, make detecting sensor 8 Emission Lasers in crystal orientation be irradiated to the surface of circular single crystal silicon rod 10, can measure the surface of circular single crystal silicon rod 10 and send distance F a little to laser; Circular single crystal silicon rod 10 rotates a circle around central axis, and the used time is T, is located at T in the time, and per interval Δ t measures once, and n measured value is F(n Δ t), wherein Δ t is measuring intervals of TIME,
To what record
individual data are carried out after high-pass filtering, and calculated minimum Fmin establishes Fmin=F (n
0Δ t), minimum value F (n
0Δ t) meet formula:
F(n
0Δ t)-F[(n
0-1) Δ t] < 0, and F[(n
0+ 1) Δ t]-F (n
0Δ t) > 0
Wherein, n
0represent n
0individual measurement point, i.e. measurement point corresponding to minimum value Fmin.
Distance minimum value Fmin is a little sent to laser in circular single crystal silicon rod 10 surfaces, also be the maximal value at circular single crystal silicon rod 10 surface distance circular single crystal silicon rod 10 centers, and the crystal orientation of circular single crystal silicon rod 10 shows as four crest lines of crystal bar surface upper process in macroscopic view, the Fmin therefore recording position on corresponding circular silicon single crystal rod 10 be the crystal orientation of crystal bar;
(5) operation cylinder 4, regains the piston rod of cylinder 4, drives lifting guard shield 5 to move down, and covers crystal orientation detecting sensor 8, avoids crystal orientation detecting sensor 8 contaminated.
Finally, it should be noted that above what enumerate is only specific embodiment of the utility model.Obviously, the utility model is not limited to above embodiment, can also have a lot of distortion.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model, all should think protection domain of the present utility model.
Claims (7)
1. a silicon single crystal rod crystal orientation pick-up unit, the crystal orientation of the circular single crystal silicon rod for detection of clamping on butt worktable, it is characterized in that, comprise support, sway brace, crystal orientation detecting sensor support, cylinder, secure shroud, lifting guard shield, crystal orientation detecting sensor;
Sway brace is fixed on support, secure shroud is arranged on supporting walls, crystal orientation detecting sensor is arranged in secure shroud by crystal orientation detecting sensor support, crystal orientation detecting sensor, for by measuring circular single crystal silicon rod surface to the distance of measuring zero point, is carried out the crystal orientation judgement of circular single crystal silicon rod;
The middle part of secure shroud is provided with hole, cylinder one end is arranged on sway brace, the other end is through the hole at secure shroud middle part, and be connected with lifting guard shield by the piston rod of cylinder, piston rod drives lifting guard shield to move up and down, to complete the opening and closing of lifting guard shield, when lifting guard shield is closed, can crystal orientation detecting sensor be covered in lifting guard shield by moving down of lifting guard shield, when lifting guard shield is opened, can crystal orientation detecting sensor be exposed in lifting guard shield by moving on lifting guard shield.
2. a kind of silicon single crystal rod according to claim 1 crystal orientation pick-up unit, is characterized in that, described cylinder is the double acting single piston rod cylinder with guide pole.
3. a kind of silicon single crystal rod according to claim 1 crystal orientation pick-up unit, is characterized in that, described crystal orientation detecting sensor is laser range sensor.
4. a kind of silicon single crystal rod according to claim 3 crystal orientation pick-up unit, is characterized in that, described silicon single crystal rod crystal orientation pick-up unit is also provided with air jet pipe and air jet pipe bracing frame, and air jet pipe is fixed on cylinder by air jet pipe bracing frame; Air jet pipe is connected with source of the gas, and source of the gas, for pass into pressurized air in air jet pipe, has gas outlet on the tube wall of air jet pipe, and aligning crystal orientation, gas outlet detecting sensor, for clearing up the pollutant at detecting sensor Laser emission mouth place, crystal orientation.
5. a kind of silicon single crystal rod according to claim 4 crystal orientation pick-up unit, is characterized in that, has 6 gas outlets on the tube wall of described air jet pipe.
6. a kind of silicon single crystal rod according to claim 4 crystal orientation pick-up unit, is characterized in that, described source of the gas adopts the pressurized air that pressure is 0.5MPa.
7. according to a kind of silicon single crystal rod crystal orientation pick-up unit described in claim 1 to 6 any one, it is characterized in that, described sway brace is fixed by screw and support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420129785.8U CN203824893U (en) | 2014-03-20 | 2014-03-20 | Monocrystalline silicon bar orientation detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420129785.8U CN203824893U (en) | 2014-03-20 | 2014-03-20 | Monocrystalline silicon bar orientation detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203824893U true CN203824893U (en) | 2014-09-10 |
Family
ID=51480376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420129785.8U Withdrawn - After Issue CN203824893U (en) | 2014-03-20 | 2014-03-20 | Monocrystalline silicon bar orientation detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203824893U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913417A (en) * | 2014-03-20 | 2014-07-09 | 浙江晶盛机电股份有限公司 | Crystal orientation detection device of single crystal silicon rod and crystal orientation detection method thereof |
-
2014
- 2014-03-20 CN CN201420129785.8U patent/CN203824893U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913417A (en) * | 2014-03-20 | 2014-07-09 | 浙江晶盛机电股份有限公司 | Crystal orientation detection device of single crystal silicon rod and crystal orientation detection method thereof |
| CN103913417B (en) * | 2014-03-20 | 2016-08-03 | 浙江晶盛机电股份有限公司 | A kind of silicon single crystal rod crystal orientation detection device and crystal orientation detection method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140910 Effective date of abandoning: 20160803 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |