CN109108491A - A kind of method that safety seeks side - Google Patents
A kind of method that safety seeks side Download PDFInfo
- Publication number
- CN109108491A CN109108491A CN201811093538.6A CN201811093538A CN109108491A CN 109108491 A CN109108491 A CN 109108491A CN 201811093538 A CN201811093538 A CN 201811093538A CN 109108491 A CN109108491 A CN 109108491A
- Authority
- CN
- China
- Prior art keywords
- capacitance sensor
- height
- value
- seeks
- seeking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/03—Observing, e.g. monitoring, the workpiece
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The present invention relates to laser cutting technique field, method that specifically a kind of safety seeks side.Compared with the existing technology, a kind of method that safety seeks side is provided, monitor H value in real time, stop seeking side if H value is extremely small, determine high-altitude shifting, acquire XY coordinate and H value, by curve matching to determine whether being plate, whether cutting head is plate under can identifying in collisionless situation, near critical value, it is difficult to judge whether it is plate, it can repeat to do again and once determine high-altitude shifting, XY coordinate and H value are acquired to determine whether being plate, height seeks the safety on side, can prevent from seeking cutting head bundle head in crack approach and cause any property loss.
Description
Technical field
The present invention relates to laser cutting technique field, method that specifically a kind of safety seeks side.
Background technique
Before panel beating sector is cut by laser the sheet metal of large format, sheet edge can be determined using side function is sought
Position and the horizontal rotation angle of plate is calculated, improve the utilization of plate will pass through the reasonable programming of host computer
Rate.In the prior art, laser cutting machine may be implemented capacitor if equipped with capacitance sensor and seek side function.But it will appear
Following problems: the distance between 1. capacitance sensors and metal plate, at certain corresponding relationship, pass through a capacitor with capacitance
Calibration, can accurately measure the distance between capacitance sensor and metal plate very much, and note measurement range is zero to S.But
More than the distance range, capacitance sensor is unable to measure actual distance, therefore must be followed using following when seek side
It is impaired that lathe is likely to result in outside plate；2. metal plate is there may be inclination, the capacitance sensor of cutting head when following
Distance can also be kept constant constantly with metal plate, cannot distinguish between when following in place in this way be follow plate just on
Side still follows at rack gear or sheet edge, is subsequently damaged if there is horizontal movement will lead to lathe；3. existing
Technology in, single seek side movement be: follow, moved along axis direction, out side.It acts too simple, can not identify entire
Seek existing dangerous situation during side, it is likely that cause to collide rack or plate and cause to damage.
Summary of the invention
The present invention in order to overcome the deficiencies of the prior art, discloses a kind of highly-safe capacitor method for searching edge, can be very big
Probability prevents cutting head from pricking down always in seeking crack approach or colliding and cause any property loss with lathe rack gear.
To achieve the above object, a kind of method that safety seeks side is designed, capacitance sensor is arranged on laser cutting head,
Be characterized in that: specific method for searching edge is as follows:
(1) height that follows for setting capacitance sensor is H1, and setting seeks side and follows height Hs, it is desirable that Hs < H1 < S；It is followed,
And monitor H height value in real time, judge whether H height value is significantly less than H1, if then seeking side failure, otherwise stops following；
(2) stop following, capacitance sensor height remains unchanged；
(3) the mobile L1 distance of setting XY axis, control capacitance sensor start to move, when capacitance sensor carries out the movement of XY axis,
The value of acquisition capacitance sensor X, Y, H in real time；
(4) when capacitance sensor is mobile, it is whether bright more than DeltaH to judge H height value, fails if then seeking side, otherwise to adopting
The data of collection carry out curve least square fitting；
(5) after XY axis stops movement, the operation of curve least square fitting is carried out to the data of acquisition, is sentenced according to the curve of fitting
Whether disconnected is plate, if then capacitance sensor follows height Hs, otherwise seeks side failure；If can not judge, do not know whether
For plate, then judge whether that having determined high-altitude has moved twice, if then seeking side failure, otherwise capacitance sensor follows height
H2；
(6) capacitance sensor follows height H2, is followed again, and monitors H height value in real time, whether judges H height value
It is significantly less than H2, if then seeking side failure, otherwise carries out step (2) to (5)；
(7) capacitance sensor follows height Hs, is followed again, and monitors H height value in real time, whether judges H height value
It is significantly less than Hs, if then seeking side failure, otherwise along axis direction, carries out seeking side outward；
(8) for capacitance sensor along axis direction, progress seeks side outward, until going out side, judges that whether obvious H height value is small in the process
In Hs, if then seeking side failure, otherwise capacitance sensor goes out side, records coordinate；
(9) capacitance sensor goes out side, records coordinate, terminates.
The S is the specified measurement range value of capacitance sensor, and 0 < H≤S.
The L1 is the mobile distance of capacitance sensor XY axis in the case that capacitance sensor height is constant.
The present invention compared with the existing technology, provides a kind of method that safety seeks side, H value is monitored in real time, if H value is extremely small
Then stop seeking side.Determine high-altitude shifting, acquire XY coordinate and H value, by curve matching to determine whether being plate.Cutting head can be
It whether is plate under being identified in collisionless situation.Near critical value, it is difficult to judge whether it is plate, and can repeat to do one
It is secondary to determine high-altitude shifting, XY coordinate and H value are acquired to determine whether being plate.Height seeks the safety on side.It can prevent from seeking in crack approach
Cutting head pricks head and causes any property loss.
Detailed description of the invention
Fig. 1 is invention software flow chart.
Specific embodiment
The invention will now be described in further detail with reference to the accompanying drawings.
As shown in Figure 1, specific method for searching edge is as follows:
(1) height that follows for setting capacitance sensor is H1, and setting seeks side and follows height Hs, it is desirable that Hs < H1 < S；It is followed,
And monitor H height value in real time, judge whether H height value is significantly less than H1, if then seeking side failure, otherwise stops following；
(2) stop following, capacitance sensor height remains unchanged；
(3) the mobile L1 distance of setting XY axis, control capacitance sensor start to move, when capacitance sensor carries out the movement of XY axis,
The value of acquisition capacitance sensor X, Y, H in real time；
(4) when capacitance sensor is mobile, it is whether bright more than DeltaH to judge H height value, fails if then seeking side, otherwise to adopting
The data of collection carry out curve least square fitting；
(5) XY axis stop it is mobile after, the operation of curve least square fitting is carried out to the data of acquisition, according to the curve of fitting come
Judge whether it is plate, if then capacitance sensor follows height Hs, otherwise seeks side failure；It is uncertain to be if can not judge
No is plate, then judges whether that having determined high-altitude has moved twice, if then seeking side failure, otherwise capacitance sensor follows height
H2；
(6) capacitance sensor follows height H2, is followed again, and monitors H height value in real time, whether judges H height value
It is significantly less than H2, if then seeking side failure, otherwise carries out step (2) to (5)；
(7) capacitance sensor follows height Hs, is followed again, and monitors H height value in real time, whether judges H height value
It is significantly less than Hs, if then seeking side failure, otherwise along axis direction, carries out seeking side outward；
(8) for capacitance sensor along axis direction, progress seeks side outward, until going out side, judges that whether obvious H height value is small in the process
In Hs, if then seeking side failure, otherwise capacitance sensor goes out side, records coordinate；
(9) capacitance sensor goes out side, records coordinate, terminates.
Claims (3)
1. a kind of method that safety seeks side, capacitance sensor is arranged on laser cutting head, it is characterised in that: specific method for searching edge
It is as follows:
(1) height that follows for setting capacitance sensor is H1, and setting seeks side and follows height Hs, it is desirable that Hs < H1 < S；It is followed,
And monitor H height value in real time, judge whether H height value is significantly less than H1, if then seeking side failure, otherwise stops following；
(2) stop following, capacitance sensor height remains unchanged；
(3) the mobile L1 distance of setting XY axis, control capacitance sensor start to move, when capacitance sensor carries out the movement of XY axis,
The value of acquisition capacitance sensor X, Y, H in real time；
(4) when capacitance sensor is mobile, it is whether bright more than DeltaH to judge H height value, fails if then seeking side, otherwise to adopting
The data of collection carry out curve least square fitting；
(5) after XY axis stops movement, the operation of curve least square fitting is carried out to the data of acquisition, is sentenced according to the curve of fitting
Whether disconnected is plate, if then capacitance sensor follows height Hs, otherwise seeks side failure；If can not judge, do not know whether
For plate, then judge whether that having determined high-altitude has moved twice, if then seeking side failure, otherwise capacitance sensor follows height
H2；
(6) capacitance sensor follows height H2, is followed again, and monitors H height value in real time, whether judges H height value
It is significantly less than H2, if then seeking side failure, otherwise carries out step (2) to (5)；
(7) capacitance sensor follows height Hs, is followed again, and monitors H height value in real time, whether judges H height value
It is significantly less than Hs, if then seeking side failure, otherwise along axis direction, carries out seeking side outward；
(8) for capacitance sensor along axis direction, progress seeks side outward, until going out side, judges that whether obvious H height value is small in the process
In Hs, if then seeking side failure, otherwise capacitance sensor goes out side, records coordinate；
(9) capacitance sensor goes out side, records coordinate, terminates.
2. the method that a kind of safety according to claim 1 seeks side, it is characterised in that: the S is capacitance sensor
Specified measurement range value, and 0 < H≤S.
3. the method that a kind of safety according to claim 1 seeks side, it is characterised in that: the L1 is that capacitance sensor is high
Spend it is constant in the case where, the mobile distance of capacitance sensor XY axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811093538.6A CN109108491A (en) | 2018-09-19 | 2018-09-19 | A kind of method that safety seeks side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811093538.6A CN109108491A (en) | 2018-09-19 | 2018-09-19 | A kind of method that safety seeks side |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109108491A true CN109108491A (en) | 2019-01-01 |
Family
ID=64859789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811093538.6A Withdrawn CN109108491A (en) | 2018-09-19 | 2018-09-19 | A kind of method that safety seeks side |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109108491A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111633351A (en) * | 2020-06-12 | 2020-09-08 | 上海柏楚电子科技股份有限公司 | Plate detection method and device, cutting control method and device and electronic equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59127989A (en) * | 1983-01-13 | 1984-07-23 | Toshiba Corp | Laser cutting method by numerical control |
| CN104972228A (en) * | 2015-07-03 | 2015-10-14 | 青岛科瑞特激光设备有限公司 | Edge finding method of laser cutting machine for panel |
| CN106112278A (en) * | 2016-08-26 | 2016-11-16 | 江苏亚威机床股份有限公司 | The automatic tracing-edge device of a kind of sheet material laser cutting machine and method for searching edge thereof |
| CN205702788U (en) * | 2016-03-30 | 2016-11-23 | 山东诺博泰智能科技有限公司 | A kind of robotic contact's sensor-type automatic localization groove cutting system |
| CN107240090A (en) * | 2017-04-18 | 2017-10-10 | 上海柏楚电子科技有限公司 | A kind of method of sheet material contours extract |
-
2018
- 2018-09-19 CN CN201811093538.6A patent/CN109108491A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59127989A (en) * | 1983-01-13 | 1984-07-23 | Toshiba Corp | Laser cutting method by numerical control |
| CN104972228A (en) * | 2015-07-03 | 2015-10-14 | 青岛科瑞特激光设备有限公司 | Edge finding method of laser cutting machine for panel |
| CN205702788U (en) * | 2016-03-30 | 2016-11-23 | 山东诺博泰智能科技有限公司 | A kind of robotic contact's sensor-type automatic localization groove cutting system |
| CN106112278A (en) * | 2016-08-26 | 2016-11-16 | 江苏亚威机床股份有限公司 | The automatic tracing-edge device of a kind of sheet material laser cutting machine and method for searching edge thereof |
| CN107240090A (en) * | 2017-04-18 | 2017-10-10 | 上海柏楚电子科技有限公司 | A kind of method of sheet material contours extract |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111633351A (en) * | 2020-06-12 | 2020-09-08 | 上海柏楚电子科技股份有限公司 | Plate detection method and device, cutting control method and device and electronic equipment |
| CN111633351B (en) * | 2020-06-12 | 2022-02-18 | 上海柏楚电子科技股份有限公司 | Plate detection method and device, cutting control method and device and electronic equipment |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190101 |