CN107576339B - Process and equipment for manufacturing code disc of photoelectric encoder - Google Patents
Process and equipment for manufacturing code disc of photoelectric encoder Download PDFInfo
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- CN107576339B CN107576339B CN201710766004.4A CN201710766004A CN107576339B CN 107576339 B CN107576339 B CN 107576339B CN 201710766004 A CN201710766004 A CN 201710766004A CN 107576339 B CN107576339 B CN 107576339B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000007639 printing Methods 0.000 claims abstract description 57
- 239000007769 metal material Substances 0.000 claims abstract description 30
- 239000007921 spray Substances 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 238000012544 monitoring process Methods 0.000 claims description 16
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 description 9
- 238000011161 development Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The invention discloses a process and equipment for manufacturing a code disc of a photoelectric encoder, which comprises the following steps: receiving a printing control instruction of the code wheel 3D model; controlling a thermal spray head to melt the metal material conveyed into the thermal spray head into a semi-liquid state, controlling the thermal spray head to move according to the printing control instruction, and simultaneously controlling the thermal spray head to extrude the metal material onto a supporting material of a forming base to print to form a layer of coded disc section; and printing the section of the code disc layer by layer from bottom to top until the required code disc is formed. The technical problem that the code channels are difficult to increase by increasing the scribing length of the code channels and reducing the distance between the code channels in the traditional code wheel manufacturing process so as to realize higher precision is solved.
Description
Technical Field
The invention relates to the field of code discs, in particular to a process and equipment for manufacturing a code disc of a photoelectric encoder.
Background
The code wheel is a digital encoder that measures angular displacement. It has the advantages of strong resolving power, high measuring precision and reliable operation, and is a displacement sensor most commonly used for measuring the rotation angle position of a shaft. The code disc is divided into an absolute encoder and an incremental encoder, wherein the absolute encoder and the incremental encoder can directly provide digital codes corresponding to the angular position; the latter uses a computing system to add or subtract the pulse increment generated by the rotating code disc against a certain reference number to obtain the angular displacement.
With the rapid development of modern society production, the precision requirement on the encoder in the production process is higher and higher, and the encoder is required to realize more accurate positioning. The photoelectric encoder has wide application prospect, and plays a great role in the fields of precise machine tool numerical control, precise angle measurement and the like. With the development of material science, the hardness and other aspects of the code disc material of the photoelectric encoder are greatly improved, so that the application field of the photoelectric encoder is widened, and the application range under severe and vibration conditions is expanded. The code disc is one of the more important elements of the whole encoder, and can be accurately positioned only when the precision is very high, so that the error is reduced, and the occurrence rate of production accidents is reduced. Along with the development of industrial production, the precision requirement on the code disc is higher and higher. To achieve higher accuracy, the code channels are increased by increasing the scribing length of the code channels and decreasing the distance between the code channels. But the traditional code disc manufacturing process is difficult to realize the requirement.
Disclosure of Invention
The invention provides a process and equipment for manufacturing a code wheel of a photoelectric encoder, which solve the technical problem that the code channels are difficult to increase by increasing the scribing length of the code channels and reducing the distance between the code channels in the traditional code wheel manufacturing process, thereby realizing higher precision.
The invention provides a process for manufacturing a code disc of a photoelectric encoder, which comprises the following steps:
receiving a printing control instruction of the code wheel 3D model;
controlling a thermal spray head to melt the metal material conveyed into the thermal spray head into a semi-liquid state, controlling the thermal spray head to move according to the printing control instruction, and simultaneously controlling the thermal spray head to extrude the metal material onto a supporting material of a forming base to print to form a layer of coded disc section;
and printing the section of the code disc layer by layer from bottom to top until the required code disc is formed.
Preferably, the first and second electrodes are formed of a metal,
the temperature of the molten metal material is controlled to not more than 10% of fluctuation above and below the preset temperature.
Preferably, the first and second electrodes are formed of a metal,
the thickness of the section of each layer of the code disc is between 0.09 and 0.11 millimeters.
Preferably, the first and second electrodes are formed of a metal,
after the section of the code disc is printed layer by layer from bottom to top until the required code disc is formed, the method further comprises the following steps:
and after the coded disc is cooled and molded for a preset time, dissolving the supporting material, so that the coded disc is separated from the molded base.
Preferably, the first and second electrodes are formed of a metal,
before receiving a printing control instruction of the 3D code disc model, the method further comprises the following steps:
and establishing a 3D code disc model and generating a corresponding printing control instruction.
Preferably, the first and second electrodes are formed of a metal,
and the monitoring is carried out in real time while the section of the code disc is printed layer by layer from bottom to top, and the monitoring result is sent to the corresponding mobile terminal in real time.
Preferably, the first and second electrodes are formed of a metal,
and collecting and storing printing data while printing the section of the code disc layer by layer from bottom to top.
The invention provides a device for manufacturing a code disc of a photoelectric encoder, which comprises: a 3D printer;
the 3D printer is used for receiving a printing control instruction of the 3D code wheel model;
the 3D printer is used for controlling a thermal spray head to melt the metal material conveyed into the thermal spray head into a semi-liquid state, controlling the thermal spray head to move according to the printing control instruction, and simultaneously controlling the thermal spray head to extrude the metal material onto a supporting material of a forming base to print to form a layer of coded disc section;
the 3D printer is used for printing the section of the code disc layer by layer from bottom to top until the required code disc is formed.
Preferably, the first and second electrodes are formed of a metal,
the equipment for manufacturing the code disc of the photoelectric encoder further comprises: and the dissolving device is used for dissolving the supporting material after the coded disc is cooled and molded for a preset time, so that the coded disc is separated from the molding base.
Preferably, the first and second electrodes are formed of a metal,
the equipment for manufacturing the code disc of the photoelectric encoder further comprises:
the modeling system is used for establishing a coded disc 3D model and generating a corresponding printing control instruction;
the monitoring host is used for carrying out real-time monitoring while printing the section of the code disc layer by layer from bottom to top and sending a monitoring result to a corresponding mobile terminal in real time;
and the database is used for storing the printing data.
According to the technical scheme, the invention has the following advantages:
firstly, receiving a printing control instruction of a 3D code disc model, then controlling a hot sprayer to melt a metal material conveyed into the hot sprayer into a semi-liquid state, controlling the hot sprayer to extrude the metal material onto a supporting material of a forming base while controlling the hot sprayer to move according to the printing control instruction, printing to form a layer of code disc cross section, and printing the code disc cross section layer by layer from bottom to top until a required code disc is formed; use 3D printing technique in photoelectric encoder code wheel's manufacture craft, compare in traditional code wheel manufacture craft, production degree of automation improves, it is more even to make the printing opacity gap of code wheel, improve the width and the interval looks each other of code track, it is more clear can, light signal percent of pass improves and the loss rate reduces, thereby improve photoelectric encoder's measurement accuracy and resolution ratio, realized the processing that becomes more meticulous to the code wheel, metal code wheel is stand wear and tear, the heat stability is good, the precision is high, can adapt to multiple abominable operating mode.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic flow chart diagram illustrating one embodiment of a process for manufacturing a code wheel of an optical-electrical encoder according to the present invention;
FIG. 2 is a schematic flow chart of another embodiment of a process for manufacturing a code wheel of an optical-electrical encoder according to the present invention;
FIG. 3 is a schematic structural diagram of an embodiment of an apparatus for manufacturing a code wheel of an optical-electrical encoder provided by the invention.
Detailed Description
The embodiment of the invention provides a process and equipment for manufacturing a code wheel of a photoelectric encoder, which solves the technical problem that the code channels are difficult to increase by increasing the scribing length of the code channels and reducing the distance between the code channels in the traditional code wheel manufacturing process, so that higher precision is realized.
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below 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, a flow chart of an embodiment of a process for manufacturing a code wheel of a photoelectric encoder according to the present invention is shown;
the invention provides an embodiment of a process for manufacturing a code disc of a photoelectric encoder, which comprises the following steps:
and S101, receiving a printing control command of the 3D code disc model.
The printing control instruction is a moving path control instruction, for example, the printing control instruction firstly moves 2mm in the forward direction of the X axis and then moves 3mm in the Y axis, and the printing control instruction also comprises the movement in the vertical direction, so that accurate positioning can be realized.
S102, controlling the thermal sprayer to melt the metal material conveyed into the thermal sprayer into a semi-liquid state, controlling the thermal sprayer to extrude the metal material onto a supporting material of a forming base while controlling the thermal sprayer to move according to a printing control instruction, and printing to form a layer of coded disc section.
Generally, the forming base is placed in a coordinate system, the thermal nozzle is controlled to move in the coordinate system according to a printing control command, and the metal material is extruded on the corresponding coordinate point.
It is necessary to transfer the metal material to the hot blast head before extruding the metal material and to supply the metal material not in stages during the extrusion process.
And S103, printing the sections of the code discs layer by layer from bottom to top until the required code discs are formed.
Because the cross section of the code wheel is stacked layer by layer, the metal material is preferably made of a technical material with a low expansion coefficient.
Referring to fig. 2, a schematic flow chart of another embodiment of a process for manufacturing a code wheel of an optical-electrical encoder according to the present invention is shown;
the invention provides another embodiment of a process for manufacturing a code disc of a photoelectric encoder, which comprises the following steps:
s201, establishing a coded disc 3D model and generating a corresponding printing control instruction.
Firstly, a 3D model of a code disc needs to be established, then, corresponding data are generated according to the section contour information of the code disc real object needing to be manufactured, and then the data are converted into corresponding control instructions.
S202, receiving a printing control command of the code wheel 3D model.
Step S202 is the same as step S101, and is not described herein again.
S203, controlling the thermal spray head to melt the metal material conveyed into the thermal spray head into a semi-liquid state, controlling the thermal spray head to move according to a printing control instruction, simultaneously controlling the thermal spray head to extrude the metal material onto a supporting material of a forming base, and printing to form a layer of coded disc section.
In order to ensure the uniformity of the metal material, the temperature of the molten metal material is controlled to not more than 10% of the fluctuation above and below a preset temperature, and the preset temperature is generally the optimal temperature.
In order to ensure seamless combination of technical materials between layers and ensure that the section of each layer of code disc can be cooled quickly, the discharge amount of the hot spray head needs to be controlled, and the thickness of the section of each layer of code disc is controlled between 0.09 mm and 0.11 mm.
And S204, printing the sections of the code discs layer by layer from bottom to top until the required code discs are formed.
Step S204 is the same as step S103, and is not described here again.
S205, after the coded disc is cooled and molded for a preset time, the supporting material is dissolved, so that the coded disc is separated from the molded base.
The preset time can be set according to actual needs, and can be dissolved without waiting for the coded disc to finish cooling, so long as the last molded coded disc is not affected.
And S206, performing real-time monitoring while printing the section of the code disc layer by layer from bottom to top, and transmitting the monitoring result to the corresponding mobile terminal in real time.
And the monitoring result is sent to mobile terminals such as a mobile phone and a Pad in real time, so that the production condition is conveniently monitored, the emergency accident can be timely handled, and the loss is reduced.
And S207, collecting and storing printing data while printing the section of the code disc layer by layer from bottom to top.
The printing data comprises but is not limited to control instructions, temperature change of molten metal materials and discharge amount of the thermal spray head, and corresponding reference bases can be provided for code disc making at a later date through analysis and processing of the printing data.
Referring to fig. 3, a schematic structural diagram of an embodiment of an apparatus for manufacturing a code wheel of an optical-electrical encoder according to the present invention is shown;
the invention provides an embodiment of equipment for manufacturing a code disc of a photoelectric encoder, which comprises the following components: the 3D printer 100.
The 3D printer 100 is used for receiving a printing control instruction of the code wheel 3D model;
the 3D printer 100 is configured to control a thermal nozzle to melt a metal material conveyed into the thermal nozzle into a semi-liquid state, control the thermal nozzle to move according to a print control instruction, and control the thermal nozzle to extrude the metal material onto a support material of a forming base to print a layer of code wheel section;
the 3D printer is also used for printing the section of the code disc layer by layer from bottom to top until the required code disc is formed.
In addition, in another embodiment of the device for manufacturing the code disc of the photoelectric encoder provided by the invention, the device for manufacturing the code disc of the photoelectric encoder further comprises: and the dissolving device 200 is used for dissolving the supporting material after the coded disc is cooled and molded for a preset time, so that the coded disc is separated from the molded base.
Further, the device for manufacturing the code disc of the photoelectric encoder further comprises:
and the modeling system 300 is used for establishing a coded disc 3D model and generating a corresponding printing control instruction.
Modeling system 300 includes, but is not limited to, a CAD modeling system and a Solidwork modeling system.
And the monitoring host 400 is used for monitoring in real time while printing the section of the code disc layer by layer from bottom to top and sending the monitoring result to the corresponding mobile terminal in real time.
A database 500 for storing print data.
A delivery system 600 for delivering metallic material to a thermal spray head.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A process for manufacturing a code disc of a photoelectric encoder is characterized by comprising the following steps:
receiving a printing control instruction of the code wheel 3D model;
controlling a thermal spray head to melt a metal material with a low expansion coefficient conveyed into the thermal spray head into a semi-liquid state, controlling the thermal spray head to move according to the printing control instruction, simultaneously controlling the thermal spray head to extrude the metal material onto a supporting material of a forming base, continuously supplying the metal material in the extrusion process, and printing to form a layer of coded disc section;
and printing the section of the code disc layer by layer from bottom to top until the required code disc is formed.
2. The process for manufacturing code disc of photoelectric encoder according to claim 1,
the temperature of the molten metal material is controlled to not more than 10% of fluctuation above and below the preset temperature.
3. The process for manufacturing code disc of photoelectric encoder according to claim 1,
the thickness of the section of each layer of the code disc is between 0.09 and 0.11 millimeters.
4. The process for manufacturing code disc of photoelectric encoder according to claim 1, wherein after the code disc section is printed layer by layer from bottom to top until the required code disc is formed, further comprising:
and after the coded disc is cooled and molded for a preset time, dissolving the supporting material, so that the coded disc is separated from the molded base.
5. The process for manufacturing the code disc of the photoelectric encoder according to claim 1, before receiving the printing control command of the 3D model of the code disc, the process further comprises the following steps:
and establishing a 3D code disc model and generating a corresponding printing control instruction.
6. The process for manufacturing code disc of photoelectric encoder according to claim 1,
and the monitoring is carried out in real time while the section of the code disc is printed layer by layer from bottom to top, and the monitoring result is sent to the corresponding mobile terminal in real time.
7. The process for manufacturing code disc of photoelectric encoder according to claim 1,
and collecting and storing printing data while printing the section of the code disc layer by layer from bottom to top.
8. An apparatus for manufacturing a code wheel of an optical-electrical encoder, comprising: a 3D printer;
the 3D printer is used for receiving a printing control instruction of the 3D code wheel model;
the 3D printer is used for controlling a thermal spray head to melt the metal material conveyed into the thermal spray head into a semi-liquid state, controlling the thermal spray head to move according to the printing control instruction, and simultaneously controlling the thermal spray head to extrude the metal material onto a supporting material of a forming base to print to form a layer of coded disc section;
the 3D printer is used for printing the section of the code disc layer by layer from bottom to top until the required code disc is formed.
9. The apparatus for making code disc of photoelectric encoder according to claim 8, further comprising: and the dissolving device is used for dissolving the supporting material after the coded disc is cooled and molded for a preset time, so that the coded disc is separated from the molding base.
10. The apparatus for making code disc of photoelectric encoder according to claim 8, further comprising:
the modeling system is used for establishing a coded disc 3D model and generating a corresponding printing control instruction;
the monitoring host is used for carrying out real-time monitoring while printing the section of the code disc layer by layer from bottom to top and sending a monitoring result to a corresponding mobile terminal in real time;
and the database is used for storing the printing data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710766004.4A CN107576339B (en) | 2017-08-30 | 2017-08-30 | Process and equipment for manufacturing code disc of photoelectric encoder |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710766004.4A CN107576339B (en) | 2017-08-30 | 2017-08-30 | Process and equipment for manufacturing code disc of photoelectric encoder |
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| Publication Number | Publication Date |
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| CN107576339A CN107576339A (en) | 2018-01-12 |
| CN107576339B true CN107576339B (en) | 2020-03-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102006056462A1 (en) * | 2006-11-28 | 2008-05-29 | Dr. Johannes Heidenhain Gmbh | encoders |
| CN103963301A (en) * | 2014-04-22 | 2014-08-06 | 英华达（上海）科技有限公司 | Fused deposition modeling device and method |
| CN105922583A (en) * | 2016-05-04 | 2016-09-07 | 杭州研智科技有限公司 | Remotely controlled 3D printer and control method thereof |
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