CN110961779B - Cantilever type laser light path calibrating device - Google Patents
Cantilever type laser light path calibrating device Download PDFInfo
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- CN110961779B CN110961779B CN201911342023.XA CN201911342023A CN110961779B CN 110961779 B CN110961779 B CN 110961779B CN 201911342023 A CN201911342023 A CN 201911342023A CN 110961779 B CN110961779 B CN 110961779B
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- 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
- B23K26/04—Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
- B23K26/042—Automatically aligning the laser beam
Abstract
The invention discloses a cantilever type laser light path calibration device which comprises a connecting rod, a butterfly bolt, a connecting pipe, a fixing plate, an operating platform and a rack, wherein one end of the connecting rod is fixedly connected with a fixing seat, the other end of the connecting rod is fixedly connected with a first connecting head, and an electric push rod is fixedly arranged on the fixing plate. According to the invention, the adjustable laser, the first receiver and the second receiver are arranged to simultaneously measure the technical parameters of the operating table of the equipment and the technical parameters of the drill bit respectively, the light path of the laser firstly passes through the second receiver to the first receiver, and the light path of the laser is reflected and folded back under the refraction of the triangular prism in the first receiver and then transmitted to the second receiver again, so that the adjustment and calibration of workers are facilitated, and the laser calibration adjustment mode is continuous and efficient; the horizontal vertical adjustment of the laser and the horizontal vertical adjustment of the first receiver are convenient, and the calibration and adjustment of the cantilever type laser calibration device are convenient.
Description
Technical Field
The invention belongs to the technical field of laser calibration equipment, and particularly relates to a cantilever type laser light path calibration device.
Background
Lasers have many characteristics, and first, lasers are monochromatic, or monochromatic. Some lasers can generate laser light with different frequencies simultaneously, but the laser light is isolated from each other and is separated when in use. Second, the laser is coherent light. The coherent light is characterized in that all light waves are synchronous, and the whole light is like a wave train. The laser is again highly focused, i.e. it takes a long distance to diverge or converge. The laser is widely applied, and comprises laser marking, laser welding, laser cutting, optical fiber communication, laser ranging, laser radar, laser weapons, laser records, laser correction of vision, laser cosmetology, laser scanning, laser mosquito killer, LIF nondestructive testing technology and the like. Laser systems can be divided into continuous wave lasers and pulsed lasers.
The quality of light emitted by the laser is pure, the spectrum is stable, and the laser can be applied to many aspects, and the basic properties of the laser are high brightness, high directivity, high monochromaticity and high coherence, so that the laser is more suitable for calibrating equipment compared with a conventional light source, and especially for equipment with higher requirement on calibration precision.
The conventional workbench calibration comprises the horizontal calibration of the workbench, equipment comprising a drill bit simultaneously needs to be vertically calibrated to ensure the vertical arrangement of the drill bit and the workbench so as to ensure the precision of processing parameters, and the conventional laser calibration equipment is often complicated in steps and not continuous in calibration modes of different positions for large-scale machining equipment; in addition, the conventional large laser calibration equipment is heavy to use, relatively light and convenient to adjust, and the cantilever type laser calibration equipment is relatively convenient and efficient to use, so that the cantilever type laser light path calibration device is provided for solving the problems in the prior art.
Disclosure of Invention
The present invention is directed to a cantilever-type laser optical path calibration device, which solves the above-mentioned problems of the prior art with different parts of the conventional calibration apparatus.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a cantilever type laser light path calibrating device, includes connecting rod, butterfly bolt, connecting pipe, fixed plate, operation panel and frame, the one end fixedly connected with fixing base of connecting rod, the first connector of other end fixedly connected with of connecting rod, fixed mounting has electric putter on the fixed plate, the one end fixedly connected with second connector of connecting pipe, the other end fixed connection of connecting pipe is on electric putter's piston rod, first connector passes through butterfly bolt fixed mounting with the second connector.
The upper portion of the fixed plate is fixedly inserted with a sleeve, the upper portion of the sleeve is inserted with a first fixing column, the upper portion of the sleeve is fixedly connected with a locking seat, the upper portion of the first fixing column is fixedly connected with an adjusting seat, the first fixing column is fixedly provided with a laser through the adjusting seat on the upper portion, and a first knob is arranged on the adjusting seat in a threaded mode.
The upper portion of fixing base is fixed to be pegged graft and is had the second fixed column, slidable mounting has the slider on the second fixed column, the lateral part screw thread of slider installs the second knob, the lateral part fixedly connected with rotary damper of slider, fixedly connected with mount on the lateral part of rotary damper's the rotary column, the one end of mount is rotated and is installed the rotating tube, the lateral part fixedly connected with fixed block of rotating tube, the grafting is installed the pillar on the fixed block, first receiver is installed through the adjustment seat in the upper portion of pillar, the internally mounted of first receiver has the triangular prism who is symmetry from top to bottom.
The drill bit of the rack is sleeved with a sleeve, a third knob is installed on the sleeve in a threaded mode, and a second receiver is fixedly installed at the bottom of the sleeve.
Preferably, first connector and second connector all set up to stainless steel buckle formula connector, all seted up the internal thread hole on first connector and the second connector, first connector and second connector are through butterfly bolt and this internal thread hole cooperation fixed mounting after the joint of each other.
Preferably, the first knob is installed at the side of the locking seat in a threaded manner, the first fixing column is installed in the locking seat in an inserting manner, and the screw portion of the first knob abuts against the side face of the first fixing column.
Preferably, the upper portion of the fixed plate is provided with a first inserting hole, the sleeve is fixedly inserted into the first inserting hole, the upper portion of the fixed seat is provided with a second inserting hole, and the second fixed column is fixedly inserted into the second inserting hole.
Preferably, the fixed block is horizontally attached to the operating platform, and the fixed block and the operating platform are horizontally arranged.
Preferably, the adjusting seat is configured to manually adjust the optical level seat.
Preferably, the first knob, the second knob and the third knob are all arranged to be knurled head screw knobs.
Preferably, the laser is a semiconductor laser, and the triangular prism is a surface total reflection triangular prism.
The invention has the technical effects and advantages that: compared with the prior art, the cantilever type laser light path calibration device provided by the invention has the following advantages:
1. the adjustable laser, the first receiver and the second receiver are arranged to simultaneously measure the technical parameters of the operating table and the drill bit of the equipment respectively, the light path of the laser firstly passes through the second receiver to the first receiver, the light path of the laser is reflected and reflected under the refraction of the triangular prism in the first receiver and then is transmitted to the second receiver again, and the technical parameters of the operating table and the drill bit are simultaneously measured through the parameter measurement of the first receiver and the second receiver, so that the adjustment and calibration of workers are facilitated, and the laser calibration adjustment mode is coherent and efficient;
2. according to the invention, by arranging the adjustable laser and the adjustable laser receiving equipment, the first fixing column can be adjusted up and down and the fixed block can be adjusted horizontally, the cantilever type laser calibration equipment enables workers to conveniently adjust the laser, the horizontal and vertical adjustment of the laser and the horizontal and vertical adjustment of the first receiver are convenient, the installation of the second receiver of the calibration drill bit is convenient, and the calibration and adjustment of the cantilever type laser calibration device are convenient.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic diagram of a laser according to the present invention;
FIG. 4 is a schematic diagram of a first receiver according to the present invention;
FIG. 5 is a schematic diagram of the internal structure of the first receiver according to the present invention;
fig. 6 is a schematic diagram of the internal structure of a second receiver according to the present invention.
In the figure: 101. a connecting rod; 102. a first connector; 103. a second connector; 104. a butterfly bolt; 105. an electric push rod; 106. a connecting pipe; 107. a fixed seat; 108. a fixing plate; 109. a first plug hole; 110. a second plug hole; 201. a sleeve; 202. a locking seat; 203. a first fixed column; 204. a first knob; 205. a laser; 301. a second fixed column; 302. a slider; 303. a triangular prism; 304. a rotary damper; 305. rotating the column; 306. a fixed mount; 307. rotating the tube; 308. a fixed block; 309. a pillar; 310. a first receiver; 311. a second knob; 401. a sleeve; 402. a third knob; 403. a second receiver; 5. an operation table; 6. an adjusting seat; 7. a drill bit; 8. and a frame.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a cantilever type laser light path calibration device as shown in figures 1-6, which comprises a connecting rod 101, a butterfly bolt 104, a connecting pipe 106, a fixing plate 108, an operating platform 5 and a frame 8, wherein one end of the connecting rod 101 is fixedly connected with a fixing seat 107, the other end of the connecting rod 101 is fixedly connected with a first connector 102, an electric push rod 105 is fixedly arranged on the fixing plate 108, one end of the connecting pipe 106 is fixedly connected with a second connector 103, the other end of the connecting pipe 106 is fixedly connected to a piston rod of the electric push rod 105, and the first connector 102 and the second connector 103 are fixedly arranged through the butterfly bolt 104.
The upper portion of fixed plate 108 is fixed to be pegged graft and is had sleeve pipe 201, and the upper portion grafting of sleeve pipe 201 is installed first fixed column 203, and the upper portion fixedly connected with of sleeve pipe 201 locks the seat 202, and the upper portion fixedly connected with of first fixed column 203 adjusts the seat 6, and first fixed column 203 is through the adjusting seat 6 fixed mounting on upper portion have laser instrument 205, and threaded mounting has first knob 204 on the adjusting seat 6.
A second fixing column 301 is fixedly inserted into the upper portion of the fixing base 107, a sliding block 302 is slidably mounted on the second fixing column 301, a second knob 311 is mounted on the side portion of the sliding block 302 through threads, a rotary damper 304 is fixedly connected to the side portion of the sliding block 302, a fixing frame 306 is fixedly connected to the side portion of a rotary column 305 of the rotary damper 304, a rotary pipe 307 is rotatably mounted at one end of the fixing frame 306, a fixing block 308 is fixedly connected to the side portion of the rotary pipe 307, a supporting column 309 is inserted into the fixing block 308, a first receiver 310 is mounted on the upper portion of the supporting column 309 through an adjusting base 6, and a triangular prism 303 which is symmetrical up and down is mounted inside the first receiver 310.
A sleeve 401 is sleeved on the drill bit 7 of the frame 8, a third knob 402 is installed on the sleeve 401 in a threaded manner, and a second receiver 403 is fixedly installed at the bottom of the sleeve 401. The first connector 102 and the second connector 103 are both configured as stainless steel buckle type connectors, the first connector 102 and the second connector 103 are both provided with internal thread holes, and the first connector 102 and the second connector 103 are fixedly mounted in a matched manner through a butterfly bolt 104 and the internal thread holes after being mutually clamped. The first knob 204 is installed at the side of the locking seat 202 in a threaded manner, the first fixing column 203 is installed in the locking seat 202 in an inserting manner, and the screw portion of the first knob 204 abuts against the side surface of the first fixing column 203. The upper portion of the fixing plate 108 is provided with a first inserting hole 109, the sleeve 201 is fixedly inserted into the first inserting hole 109, the upper portion of the fixing seat 107 is provided with a second inserting hole 110, and the second fixing column 301 is fixedly inserted into the second inserting hole 110. The fixed block 308 is horizontally attached to the console 5, and the fixed block 308 is horizontally disposed with the console 5. The adjusting seat 6 is set as a manual adjusting optical horizontal seat. The first knob 204, the second knob 311, and the third knob 402 are all configured as knurled-head screw knobs. The laser 205 is provided as a semiconductor laser, and the triangular prism 303 is provided as a surface total reflection triangular prism.
The working principle is as follows: the device measures the technical parameters of the operating platform 5 and the drill bit 7 of the equipment simultaneously by arranging the adjustable laser 205, the first receiver 310 and the second receiver 403, the light path of the laser firstly passes through the second receiver 403 to the first receiver 310, the light path of the laser is reflected and reflected by the triangular prism 303 in the first receiver 310 and then transmitted to the second receiver 403 again, and the technical parameters of the operating platform 5 and the drill bit 7 are measured simultaneously by measuring the parameters of the first receiver 310 and the second receiver 403, so that the adjustment and calibration of workers are facilitated, and the laser calibration adjustment mode is consistent and efficient; through setting up adjustable laser instrument 205 and laser receiving equipment, but under the setting of the adjustable level adjustment of the adjustable of first fixed column 203 from top to bottom and fixed block 308, but the laser calibration equipment of cantilever type makes that the staff can be convenient adjust it, the vertical regulation of the level of laser instrument 205 is convenient with the vertical regulation of the level of first receiver 310, the simple to operate of the second receiver 403 of calibration drill bit, the calibration of cantilever type laser calibrating device is adjusted conveniently.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a cantilever type laser light path calibrating device, includes connecting rod (101), butterfly bolt (104), connecting pipe (106), fixed plate (108), operation panel (5) and frame (8), its characterized in that: one end of the connecting rod (101) is fixedly connected with a fixed seat (107), the other end of the connecting rod (101) is fixedly connected with a first connector (102), an electric push rod (105) is fixedly installed on the fixed plate (108), one end of the connecting pipe (106) is fixedly connected with a second connector (103), the other end of the connecting pipe (106) is fixedly connected to a piston rod of the electric push rod (105), and the first connector (102) and the second connector (103) are fixedly installed through a butterfly bolt (104);
a sleeve (201) is fixedly inserted into the upper portion of the fixing plate (108), a first fixing column (203) is inserted into the upper portion of the sleeve (201), a locking seat (202) is fixedly connected to the upper portion of the sleeve (201), an adjusting seat (6) is fixedly connected to the upper portion of the first fixing column (203), a laser (205) is fixedly installed on the first fixing column (203) through the adjusting seat (6) in the upper portion, and a first knob (204) is installed on the adjusting seat (6) in a threaded mode;
a second fixing column (301) is fixedly inserted into the upper portion of the fixing seat (107), a sliding block (302) is slidably mounted on the second fixing column (301), a second knob (311) is mounted on the side portion of the sliding block (302) in a threaded manner, a rotary damper (304) is fixedly connected to the side portion of the sliding block (302), a fixing frame (306) is fixedly connected to the side portion of a rotating column (305) of the rotary damper (304), a rotating pipe (307) is rotatably mounted at one end of the fixing frame (306), a fixing block (308) is fixedly connected to the side portion of the rotating pipe (307), a supporting column (309) is inserted into the fixing block (308), a first receiver (310) is mounted on the upper portion of the supporting column (309) through an adjusting seat (6), and triangular prisms (303) which are symmetrical up and down are mounted inside the first receiver (310);
the drill bit (7) of frame (8) is gone up to cup joint and is installed sleeve (401), threaded mounting has third knob (402) on sleeve (401), the bottom fixed mounting of sleeve (401) has second receiver (403).
2. The cantilever-type laser optical path calibration device according to claim 1, wherein: first connector (102) and second connector (103) all set up to stainless steel buckle formula connector, all seted up the internal thread hole on first connector (102) and second connector (103), first connector (102) and second connector (103) are mutually the joint back through butterfly bolt (104) and this internal thread hole cooperation fixed mounting.
3. The cantilever-type laser optical path calibration device according to claim 1, wherein: the first knob (204) is installed on the side of the locking seat (202) in a threaded mode, the first fixing column (203) is installed in the locking seat (202) in an inserting mode, and the screw portion of the first knob (204) abuts against the side face of the first fixing column (203).
4. The cantilever-type laser optical path calibration device according to claim 1, wherein: the upper portion of the fixed plate (108) is provided with a first inserting hole (109), the sleeve (201) is fixedly inserted into the first inserting hole (109), the upper portion of the fixed seat (107) is provided with a second inserting hole (110), and the second fixed column (301) is fixedly inserted into the second inserting hole (110).
5. The cantilever-type laser optical path calibration device according to claim 1, wherein: the fixed block (308) is horizontally attached to the operating platform (5), and the fixed block (308) and the operating platform (5) are horizontally arranged.
6. The cantilever-type laser optical path calibration device according to claim 1, wherein: the adjusting seat (6) is arranged to be a manual adjusting optical horizontal seat.
7. The cantilever-type laser optical path calibration device according to claim 1, wherein: the first knob (204), the second knob (311) and the third knob (402) are all arranged to be knurled head screw knobs.
8. The cantilever-type laser optical path calibration device according to claim 1, wherein: the laser (205) is set to be a semiconductor laser, and the triangular prism (303) is set to be a surface total reflection triangular prism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911342023.XA CN110961779B (en) | 2019-12-24 | 2019-12-24 | Cantilever type laser light path calibrating device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911342023.XA CN110961779B (en) | 2019-12-24 | 2019-12-24 | Cantilever type laser light path calibrating device |
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| CN110961779A CN110961779A (en) | 2020-04-07 |
| CN110961779B true CN110961779B (en) | 2021-07-20 |
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| CN115032163A (en) * | 2022-06-28 | 2022-09-09 | 南京康测自动化设备有限公司 | High-precision laser perpendicularity calibration device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4811040A (en) * | 1986-05-08 | 1989-03-07 | Madsen Erik H | Numismatic detector |
| JPH08327343A (en) * | 1995-05-31 | 1996-12-13 | Sokkia Co Ltd | Straightness measuring apparatus |
| CN1529806A (en) * | 2001-07-16 | 2004-09-15 | �����ɷ� | Method for measuring surface propevties and co-ordinate measuring device |
| CN103969190A (en) * | 2014-05-07 | 2014-08-06 | 长春理工大学 | Automatic calibration device for laser type extinction smoke meter |
| CN204636368U (en) * | 2015-03-19 | 2015-09-16 | 上海市第六人民医院 | A kind of cantilevered laser optical path calibrating installation |
| CN106847054A (en) * | 2016-11-25 | 2017-06-13 | 安徽省春谷3D打印智能装备产业技术研究院有限公司 | Laser scanning controls Teaching Module |
| CN208663736U (en) * | 2018-07-24 | 2019-03-29 | 深圳万苍科技有限公司 | A kind of Plane Angle micromatic setting |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2263973B (en) * | 1992-02-08 | 1995-03-22 | Andrew Hugh Mackay | Level monitoring method and means for use therein |
| JP4183339B2 (en) * | 1999-06-11 | 2008-11-19 | 株式会社シブヤ | Positioning method for installing a core drill device and laser oscillation device used in the method |
| CN100355533C (en) * | 2005-01-17 | 2007-12-19 | 苏州宝时得电动工具有限公司 | Apparatus for definding gradient of tool |
| CN106989699B (en) * | 2017-05-16 | 2023-01-17 | 广东省计量科学研究院（华南国家计量测试中心） | Laser centering instrument calibration equipment and method for measuring indication error of laser centering instrument through laser centering instrument calibration equipment |
| CN107167079A (en) * | 2017-05-30 | 2017-09-15 | 常州高晟传感技术有限公司 | Height of materials and evenness measuring system, measuring method and its method for self-calibrating |
-
2019
- 2019-12-24 CN CN201911342023.XA patent/CN110961779B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4811040A (en) * | 1986-05-08 | 1989-03-07 | Madsen Erik H | Numismatic detector |
| JPH08327343A (en) * | 1995-05-31 | 1996-12-13 | Sokkia Co Ltd | Straightness measuring apparatus |
| CN1529806A (en) * | 2001-07-16 | 2004-09-15 | �����ɷ� | Method for measuring surface propevties and co-ordinate measuring device |
| CN103969190A (en) * | 2014-05-07 | 2014-08-06 | 长春理工大学 | Automatic calibration device for laser type extinction smoke meter |
| CN204636368U (en) * | 2015-03-19 | 2015-09-16 | 上海市第六人民医院 | A kind of cantilevered laser optical path calibrating installation |
| CN106847054A (en) * | 2016-11-25 | 2017-06-13 | 安徽省春谷3D打印智能装备产业技术研究院有限公司 | Laser scanning controls Teaching Module |
| CN208663736U (en) * | 2018-07-24 | 2019-03-29 | 深圳万苍科技有限公司 | A kind of Plane Angle micromatic setting |
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