CN113231887B - Edge finder structure based on photoresistor - Google Patents
Edge finder structure based on photoresistor Download PDFInfo
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- CN113231887B CN113231887B CN202110564066.3A CN202110564066A CN113231887B CN 113231887 B CN113231887 B CN 113231887B CN 202110564066 A CN202110564066 A CN 202110564066A CN 113231887 B CN113231887 B CN 113231887B
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- shell body
- sliding block
- edge finder
- shell
- fixed mounting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
- B23Q17/2414—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for indicating desired positions guiding the positioning of tools or workpieces
- B23Q17/2419—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for indicating desired positions guiding the positioning of tools or workpieces by projecting a single light beam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B25/00—Accessories or auxiliary equipment for turning-machines
- B23B25/06—Measuring, gauging, or adjusting equipment on turning-machines for setting-on, feeding, controlling, or monitoring the cutting tools or work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/20—Automatic control or regulation of feed movement, cutting velocity or position of tool or work before or after the tool acts upon the workpiece
- B23Q15/22—Control or regulation of position of tool or workpiece
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Machine Tool Sensing Apparatuses (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention relates to the technical field of edge finder structures, and discloses an edge finder structure based on a photoresistor, which comprises a shell, wherein a clamping connecting rod is fixedly installed at the top end of the shell, a fixed shaft is fixedly installed in an inner cavity of the shell, a sliding block is movably sleeved on the outer surface of the fixed shaft and positioned in the inner cavity of the shell, a reflecting mirror surface is arranged at the top of one side of the outer surface of the sliding block, a pressure spring is movably sleeved on one side of the outer surface of the fixed shaft and positioned between the sliding block and one side of the inner cavity of the shell, and a sliding connecting rod extending to the outside of the shell is fixedly installed inside the sliding block. This seek limit ware structure based on photo resistance to the setting of sliding block, reflector surface and light source reflector, response piece, for photoelectric type seek limit ware, this seek limit ware's use does not have the requirement and can not produce bad contact's phenomenon because of the influence of work piece surface greasy dirt to the material of treating the machined part, stability and reliability are higher, application scope is wider.
Description
Technical Field
The invention relates to the technical field of edge finder structures, in particular to an edge finder structure based on a photoresistor.
Background
The edge finder is a detection tool for accurately positioning the central position of a workpiece to be machined in numerical control machining, obtains the central position of a rotating main shaft in the workpiece to be machined by measuring numerical values on two sides of the workpiece to be machined to obtain an average value or obtains a coordinate origin of a part machining program from the average value, so that the tool setting, alignment, workpiece measurement and other work in the numerical control machining are realized, and the machining precision of the workpiece is further ensured.
The offset edge finder is mainly divided into an offset edge finder and a photoelectric edge finder, and although the offset edge finder has a simple structure, the detection precision of the offset edge finder changes due to the proficiency of a user, and subjective judgment factors of the offset edge finder have great influence on the detection precision of the edge finder, so that the offset edge finder is difficult to operate and low in detection precision, and therefore the offset edge finder is gradually replaced by the photoelectric edge finder.
Although the detection accuracy of the photoelectric edge finder is far higher than that of a biased edge finder, the photoelectric edge finder can only detect conductive materials and cannot detect non-conductive materials due to the working principle of the photoelectric edge finder, so that the photoelectric edge finder is greatly limited in the actual use process, is very easily affected by oil stains on the surface of a workpiece to cause poor contact, and is poor in stability and reliability.
Disclosure of Invention
Technical problem to be solved
The invention provides an edge finder structure based on a photoresistor, which has the advantages of no requirement on the material of a workpiece to be machined, no contact failure caused by the influence of oil stains on the surface of the workpiece, no need of back-and-forth adjustment of the feeding amount of a machine tool spindle to ensure that the edge finder is just in contact with the workpiece so as to cause excessive contact, high positioning accuracy of the machine tool spindle, simplicity and convenience in operation, and high stability and reliability.
(II) technical scheme
The invention provides the following technical scheme: the utility model provides a seek limit ware structure based on photo resistance, includes the shell body, the top fixed mounting of shell body has the joint connecting rod, fixed mounting has the fixed axle in the inner chamber of shell body, the sliding block has been cup jointed in the activity among the inner chamber of fixed axle and the inner chamber that is located the shell body, and the top of sliding block surface one side is equipped with the reflection of light mirror surface, compression spring has been cup jointed in the activity between one side of fixed axle surface and the one side that is located sliding block and shell body inner chamber, the inside fixed mounting of sliding block has the slip connecting rod that extends to the shell body outside, the one end fixed mounting of slip connecting rod has the contact ball, one side fixed mounting on shell body top has the light source reflector that extends to its inside, the bottom fixed mounting of shell body inner chamber one side has the response piece, and response piece and fixed mounting is connected between the LED alarm lamp pearl of shell body surface and the power electricity.
Preferably, the reflecting surface of the reflecting mirror surface is a curved surface structure.
Preferably, the sensing block is provided with a tapered structure at the outer part thereof, and a photoresistor is arranged at the top end thereof.
Preferably, the central axis of the light source reflector, the central plane of the pressure spring and the center of the sensing block are located on the same vertical plane.
Preferably, the number of the fixed shafts is more than two groups and the fixed shafts are arranged regularly.
(III) advantageous effects
The invention has the following beneficial effects:
1. the edge finder structure based on the photoresistor is characterized in that the sliding block, the reflecting mirror surface, the light source reflector and the sensing block are arranged, the displacement change of the contact ball is detected by utilizing the reflection of light beams, and then the central position of a workpiece is calculated and determined.
2. This seek limit ware structure based on photo resistance, be the setting of arc curved surface structure and response piece to reflection of light mirror surface plane of reflection of light, make LED warning lamp pearl on this seek limit ware only can trigger and send out the police dispatch newspaper in a certain point, the too much then LED warning lamp pearl of displacement volume of sliding block can disappear after sending out the police dispatch newspaper, and the too little LED warning lamp pearl of displacement volume then can't send out the police dispatch newspaper, and then the feed amount of adjustment lathe main shaft that can be accurate, the positioning accuracy of this seek limit ware to the lathe main shaft has been improved effectively, and, the feed amount of adjustment lathe main shaft that need not make a round trip when the position of location lathe main shaft just in time takes place to contact in order to ensure between seeking limit ware and the work piece, easy operation and precision are higher.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a front view of the structure of the present invention;
FIG. 3 is an enlarged schematic view A of FIG. 1 according to the present invention;
fig. 4 is a schematic diagram of the edge finding detection of the workpiece according to the present invention.
In the figure: 1. an outer housing; 2. clamping a connecting rod; 3. a fixed shaft; 4. a slider; 5. a reflective mirror surface; 6. a pressure spring; 7. a sliding connecting rod; 8. contacting the ball; 9. a light source reflector; 10. an induction block; 11. LED alarm lamp pearl.
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. 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.
Referring to fig. 1-3, an edge finder structure based on a photo resistor comprises an outer shell 1, a clamping connecting rod 2 is fixedly installed at the top end of the outer shell 1, a fixed shaft 3 is fixedly installed in an inner cavity of the outer shell 1, a sliding block 4 is movably sleeved in the inner cavity of the outer shell 1 and on the outer surface of the fixed shaft 3, a reflecting mirror surface 5 is arranged at the top of one side of the outer surface of the sliding block 4, a pressure spring 6 is movably sleeved between one side of the outer surface of the fixed shaft 3 and one side of the inner cavity of the outer shell 1 and on the sliding block 4, a sliding connecting rod 7 extending to the outside of the outer shell 1 is fixedly installed inside the sliding block 4, a contact ball 8 is fixedly installed at one end of the sliding connecting rod 7, a light source reflector 9 extending to the inside of the outer shell 1 is fixedly installed at one side of the top end of the outer shell 1, an induction block 10 is fixedly installed at the bottom of one side of the inner cavity of the outer shell 1, and the induction block 10 is electrically connected with an LED alarm lamp bead 11 fixedly installed on the outer surface of the outer shell 1 and a power supply.
The sliding block 4, the reflector 5, the light source reflector 9 and the induction block 10 are arranged, the displacement change of the contact ball 8 is detected by utilizing the reflection of the light beam, and then the positioning of the contact ball on the main shaft of the machine tool is determined.
In the technical scheme, the reflecting surface of the reflecting mirror surface 5 is of a curved surface structure.
The reflecting surface of the reflecting mirror surface 5 is in an arc-shaped curved surface structure, so that the falling points of the light beams reflected by each point of the light beams emitted by the light source reflector 9 on the reflecting mirror surface 5 are different, and a larger displacement difference exists between the unit feeding amounts of the sliding blocks 4 between the falling points of the light beams.
In this technical scheme, the outside of response piece 10 is established to the toper structure, and is equipped with photo resistance at its top.
Wherein, to the setting of 10 top photo resistance of response piece, so that convert the light beam that the reflecting mirror face 5 reflects back into the signal of telecommunication, and then touch LED warning lamp pearl 11 and send out the police dispatch newspaper, and simultaneously, ensure that this edge finder can only send out the police dispatch newspaper at a certain point, the too much then LED warning lamp pearl 11 of the displacement volume of sliding block 4 can disappear after sending out the police dispatch newspaper, and the too little LED warning lamp pearl 11 of displacement volume then can't send out the police dispatch newspaper, and then improved this edge finder to the positioning accuracy of lathe main shaft effectively, and simultaneously, when the position of location lathe main shaft, the adjustment lathe main shaft's that need not make a round trip feed volume is just in time with ensuring that the edge finder takes place to contact between with the work piece, easy operation and precision are higher.
In the technical scheme, the central axis of the light source reflector 9, the central plane of the pressure spring 6 and the center of the induction block 10 are positioned on the same vertical plane.
The positions of the light source reflector 9, the pressure spring 6 and the sensing block 10 are set so as to ensure that the light beam reflected by the pressure spring 6 can be received by the sensing block 10 at a specific position, and then is fed back to the LED alarm lamp bead 11 to alarm.
In this technical scheme, the number of fixed axle 3 sets up to be more than two sets and it is the regular arrangement.
Wherein, to the setting of fixed axle 3 figure with effective fixed sliding block 4 for sliding block 4 can only drive the slip about its last pressure spring 6 along the orbit of fixed axle 3, and can not take place relative pivoted phenomenon, and then has improved this ware of seeking limit when detecting stability and reliability effectively.
The use method and the working principle of the embodiment are as follows:
firstly, the edge finder is fixedly arranged on a main shaft of a machine tool through a clamping connecting rod 2, the central axis of an outer shell 1 is ensured to be vertical to the surface of a workpiece, meanwhile, a light source reflector 9 is opened to emit light beams, then, the main shaft of the machine tool is slowly moved and drives a contact ball 8 on the edge finder to gradually approach the surface of the workpiece, when the end surface of the contact ball 8 is contacted and extruded with the surface of the workpiece, a sliding block 4 is driven to move to one side along the track of a fixed shaft 3 under the driving action of a sliding connecting rod 7 and a pressure spring 6 is compressed, as shown in figure 4, when the sliding block 4 and a reflecting mirror surface 5 on the sliding block are in different positions, the falling points of the light beams reflected by the reflecting mirror surface 5 are different, and the reflecting falling points of the reflecting mirror surface 5 on the light beams are continuously changed along with the gradual movement of the reflecting mirror surface 5, when the falling point of the light beam is just positioned on the photoresistor on the induction block 10, a feedback connection circuit of the LED alarm lamp bead 11 is switched on and gives an alarm, and in the process that the reflecting mirror surface 5 continues to move, the falling point of the light beam reflected by the reflecting mirror surface 5 gradually deviates from the induction block 10, the feedback circuit on the reflecting mirror surface is switched off, the LED alarm lamp bead 11 does not give an alarm again, then the feeding of the machine tool spindle is moved reversely, the falling point of the light beam reflected by the reflecting mirror surface 5 is just positioned on the induction block 10, the LED alarm lamp bead 11 is forced to give an alarm, and then the center position of the workpiece is calculated and determined according to the specific distance between the central axis of the clamping connecting rod 2 and the end face of the contact ball 8 when the LED alarm lamp bead 11 gives an alarm.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a seek limit ware structure based on photo resistance, includes shell body (1), the top fixed mounting of shell body (1) has joint connecting rod (2), its characterized in that: fixed mounting has fixed axle (3) in the inner chamber of shell body (1), sliding block (4) have been cup jointed in the activity among the surface of fixed axle (3) and the inner chamber that is located shell body (1), and the top of sliding block (4) surface one side is equipped with reflection of light mirror surface (5), pressure spring (6) have been cup jointed in the activity between one side of fixed axle (3) surface and shell body (1) inner chamber, the inside fixed mounting of sliding block (4) has slide connecting rod (7) that extends to shell body (1) outside, the one end fixed mounting of slide connecting rod (7) has contact ball (8), one side fixed mounting on shell body (1) top has light source reflector (9) that extends to its inside, the bottom fixed mounting of shell body (1) inner chamber one side has response piece (10), and responds to piece (10) and is connected with electricity between LED alarm lamp pearl (11) and the power of fixed mounting at shell body (1) surface.
2. The photo-resistor-based edge finder structure according to claim 1, wherein: the reflecting surface of the reflecting mirror surface (5) is of a curved surface structure.
3. The photo-resistor-based edge finder structure according to claim 2, wherein: the outside of the induction block (10) is designed into a conical structure, and the top end of the induction block is provided with a photoresistor.
4. The photo-resistor-based edge finder structure according to claim 3, wherein: the central axis of the light source reflector (9), the central plane of the pressure spring (6) and the center of the induction block (10) are positioned on the same vertical plane.
5. The photo-resistor-based edge finder structure according to claim 1, wherein: the number of the fixed shafts (3) is more than two groups and the fixed shafts are arranged regularly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110564066.3A CN113231887B (en) | 2021-05-24 | 2021-05-24 | Edge finder structure based on photoresistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110564066.3A CN113231887B (en) | 2021-05-24 | 2021-05-24 | Edge finder structure based on photoresistor |
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| Publication Number | Publication Date |
|---|---|
| CN113231887A CN113231887A (en) | 2021-08-10 |
| CN113231887B true CN113231887B (en) | 2022-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110564066.3A Active CN113231887B (en) | 2021-05-24 | 2021-05-24 | Edge finder structure based on photoresistor |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117681079A (en) * | 2024-02-02 | 2024-03-12 | 江苏金穗能源设备制造有限公司 | Surface treatment device for leakage-proof GIS switch shell |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7464478B2 (en) * | 2004-09-13 | 2008-12-16 | Merle Skip Adrian | Workpiece center and edge finder having visual light indicator |
| CN104015100B (en) * | 2014-05-28 | 2016-06-29 | 华南理工大学 | A kind of Machinetool workpiece automatic tracing-edge system |
| CN105423914B (en) * | 2015-11-11 | 2018-10-30 | 清华大学深圳研究生院 | A kind of optical signal touch trigger probe |
| CN109605130B (en) * | 2019-01-12 | 2020-11-10 | 浙江臻致精密科技有限公司 | Internal circulation type hydraulic photoelectric edge finder |
| CN210981182U (en) * | 2019-11-26 | 2020-07-10 | 广东万濠精密仪器股份有限公司 | Projection system structure with built-in edge finder |
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Effective date of registration: 20221108 Address after: 523000 Room 101, building 17, Lihe Bauhinia intelligent manufacturing center, 105 Qingbin East Road, Qingxi Town, Dongguan City, Guangdong Province Applicant after: GUANGDONG YIJIE TECHNOLOGY Co.,Ltd. Address before: 524000 room 2501-2502, unit 1, building 5, Yuhai garden, No. 8 Junmin Road, Chikan District, Zhanjiang City, Guangdong Province Applicant before: Huang Zongxin |
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