CN116277984A - Detection method, system and equipment for powder feeding type 3D printing head protective mirror - Google Patents
Detection method, system and equipment for powder feeding type 3D printing head protective mirror Download PDFInfo
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- CN116277984A CN116277984A CN202310575791.XA CN202310575791A CN116277984A CN 116277984 A CN116277984 A CN 116277984A CN 202310575791 A CN202310575791 A CN 202310575791A CN 116277984 A CN116277984 A CN 116277984A
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- temperature
- protective mirror
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- powder feeding
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- 230000001681 protective effect Effects 0.000 title claims abstract description 110
- 238000010146 3D printing Methods 0.000 title claims abstract description 72
- 239000000843 powder Substances 0.000 title claims abstract description 43
- 238000001514 detection method Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 claims abstract description 25
- 238000007639 printing Methods 0.000 claims description 18
- 235000020610 powder formula Nutrition 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 3
- 230000001012 protector Effects 0.000 claims 5
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
- B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
Abstract
The invention relates to the technical field of powder feeding type 3D printing heads, in particular to a detection method, a detection system and detection equipment for a powder feeding type 3D printing head protective lens, wherein the detection method comprises the steps of collecting the temperature of the protective lens in real time in a 3D printing process, and comparing the collected temperature with a preset threshold value to judge the pollution state of the protective lens; the detection system comprises a temperature acquisition module, a temperature control module and an input/output module of a 3D printing equipment control unit; the detection equipment comprises a temperature sensor, a protective mirror support and a protective mirror support. By the detection method, the detection system and the detection equipment, the problem that the pollution degree of the protective mirror cannot be detected in real time can be effectively solved.
Description
Technical Field
The invention relates to the technical field of powder feeding type 3D printing heads, in particular to a detection method, a detection system and detection equipment for a powder feeding type 3D printing head protective mirror.
Background
Along with the wide application of 3D printing technology in industrial manufacturing, the industrial manufacturing provides higher use requirements for the powder feeding type 3D printing head, and the powder feeding type 3D printing head can be ensured to be safe and reliable under the long-time uninterrupted working condition. The protective mirror in the powder feeding type 3D printing head plays a key role.
The protection mirror is mainly used for isolating external dust and dirt and protecting the collimating mirror and the focusing mirror in the powder feeding type 3D printing head. In the high-power powder feeding type 3D printing process, because the part printing time is longer and the printing is in an environment filled with argon, the real-time inspection of the protective mirror cannot be realized by human intervention. Once the protective mirror is polluted, the absorption rate of the protective mirror to the laser beam is increased, so that the temperature of the protective mirror is increased to burn. The burning of the protective mirror can indirectly lead to the damage of the powder feeding type 3D printing head, so that parts are scrapped, and equipment damage can be seriously caused. And is therefore particularly important for the detection of whether the protection mirror is contaminated.
The current solution to this problem is to inspect and clean the protective mirror before each print is started, the operation process of the operator is complicated, and the protective mirror cannot be detected in real time because the printing process can last for several days or even weeks.
Disclosure of Invention
In order to solve the technical problems, the invention provides a detection method, a detection system and detection equipment for a powder feeding type 3D printing head protective lens, which can effectively solve the problem that the pollution degree of the protective lens cannot be detected in real time.
The invention is realized by adopting the following technical scheme:
the detection method for the powder feeding type 3D printing head protective mirror is characterized by comprising the following steps of: in the 3D printing process, the temperature of the protective mirror is collected in real time, and the collected temperature is compared with a preset threshold value to judge the pollution state of the protective mirror.
At least two groups of preset thresholds respectively represent different pollution degrees; when the collected temperature exceeds the corresponding threshold value, the protection mirror is polluted to a corresponding degree, and the control unit sends out a corresponding alarm signal.
And when the acquired temperature exceeds a preset highest threshold value, controlling to interrupt the 3D printing process.
A detecting system for sending powder formula 3D print head protection mirror, its characterized in that: the input/output module comprises a temperature acquisition module, a temperature control module and a 3D printing equipment control unit; the temperature acquisition module is used for acquiring the temperature of the protective mirror in real time and sending the acquired temperature signal to the temperature control module; the temperature control module is used for receiving the temperature signal and comparing the temperature signal with a preset threshold value, and when the acquired temperature signal exceeds the highest threshold value, the temperature control module is used for sending an alarm signal to the input and output module of the 3D printing equipment control unit, and after the input and output module of the 3D printing equipment control unit receives the alarm signal, the 3D printing process is controlled to be interrupted.
The setting range of the highest threshold value is 50-70 ℃.
The temperature acquisition module is a temperature sensor.
A check out test set for giving powder formula 3D print head protection mirror, its characterized in that: comprises a temperature sensor, a protective lens bracket and a protective lens support; the upper side and the lower side of the protective mirror support are respectively and movably connected with the powder feeding type 3D printing head; the protective mirror is arranged on the protective mirror support, the protective mirror support is movably connected with the protective mirror support, and a socket is arranged on the side wall of the protective mirror support and used for inserting or extracting the protective mirror; the temperature sensor is arranged on the protective lens support and is close to the protective lens and used for detecting the temperature of the protective lens.
The temperature sensor is close to the center of the protective mirror and is staggered with the center of the protective mirror.
The protective mirror support is box-shaped.
The powder feeding type 3D printing head comprises a powder feeding type 3D printing head, and is characterized by further comprising a printing head upper adjusting block and a printing head lower adjusting block which are arranged on the powder feeding type 3D printing head, wherein the upper side and the lower side of the protective lens support are respectively connected with the printing head upper adjusting block and the printing head lower adjusting block through bolts.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention realizes the detection of the pollution degree of the protective mirror by using temperature detection by coincidence, can realize the real-time detection of the protective mirror and has good protective effect. The protection of the 3D printing head is realized according to the temperature comparison of the protective mirror, and particularly, the problems of damage to the 3D printing equipment and scrapping of parts caused by burning out of the protective mirror in 3D printing can be effectively solved.
2. By the method, the normal running of 3D printing and the prompt of timely alarming in abnormal conditions can be realized, and the printing process can be interrupted in severe conditions, so that the human intervention is greatly reduced, the state of the protective lens can be timely and reliably acquired, and the damage probability of the powder feeding type 3D printing head is reduced.
3. In the invention, the temperature sensor is close to the center of the protective mirror and is staggered with the center of the protective mirror, so that the detection result of the temperature sensor is more accurate, and the laser beam can not be influenced to penetrate from the middle.
4. The protective mirror support is box-shaped, and temperature detection is more sensitive.
Drawings
The invention will be described in further detail with reference to the drawings and detailed description, wherein:
FIG. 1 is a schematic diagram of a detection system according to the present invention;
FIG. 2 is a schematic diagram of the structure of the detecting device in the present invention;
FIG. 3 is a schematic diagram of a partial structure of a detecting device according to the present invention;
FIG. 4 is a schematic view showing the arrangement of a temperature sensor and a protective mirror support in the present invention;
FIG. 5 is a front view of the protective mirror support of the present invention;
FIG. 6 is a rear view of the protective mirror support of the present invention;
the marks in the figure:
1. the device comprises a temperature acquisition module, a temperature control module, an input/output module of a control unit of 3, 3D printing equipment, a temperature sensor, a protective mirror support, 7, a socket, 8, a protective mirror, 9, an upper printing head regulating block, 10 and a lower printing head regulating block.
Detailed Description
Example 1
As a basic embodiment of the present invention, the present invention includes a method for detecting a protective lens of a powder feeding type 3D printhead, in which, during a 3D printing process, the temperature of the protective lens 8 is collected in real time, and the collected temperature is compared with a preset threshold value to determine a pollution state of the protective lens 8, that is, when the collected temperature is greater than the preset threshold value, it is determined that the protective lens 8 is polluted, and a subsequent process is required.
Example 2
As a preferred embodiment of the present invention, the present invention includes a method for detecting a protective lens of a powder feeding type 3D printing head, wherein the temperature of the protective lens 8 is collected in real time during the 3D printing process, and the collected temperature is compared with a preset threshold value to determine the pollution state of the protective lens 8. Wherein, the preset threshold value has two groups which respectively represent different pollution degrees. A group with lower numerical value represents low pollution degree, and the treatment is not needed temporarily, so that the alarm signal needing to be noted can be controlled to be sent out; the group with higher value is the highest threshold value, which represents high pollution level, and can control the sending of alarm signals which need to be processed and control the interruption of the 3D printing process.
Example 3
As another preferred embodiment of the present invention, the present invention includes a detection system for a powder feeding type 3D print head protection mirror, which includes a temperature acquisition module 1, a temperature control module 2, and an input/output module 3 of a 3D printing apparatus control unit. The temperature acquisition module 1 is used for acquiring the temperature of the protective mirror 8 in real time and sending the acquired temperature signal to the temperature control module 2. The temperature control module 2 is used for receiving the temperature signal and comparing the temperature signal with a preset threshold value, and when the acquired temperature signal exceeds the highest threshold value, the temperature control module 2 is used for sending an alarm signal to the input/output module 3 of the 3D printing equipment control unit. And after the input/output module 3 of the 3D printing equipment control unit receives the alarm signal, the 3D printing process is controlled to be interrupted.
Example 4
As a further preferred embodiment of the invention, the invention comprises a detection device for the powder feeding type 3D printing head protective mirror, which comprises a temperature sensor 4, a protective mirror support 5 and a protective mirror support 6, wherein the powder feeding type 3D printing head on the upper side and the powder feeding type 3D printing head on the lower side of the protective mirror support 6 are respectively and movably connected, and particularly can be connected through a pin shaft or connected through threads. The protection mirror 8 is arranged on the protection mirror support 5, the protection mirror support 6 is movably connected with the protection mirror support 5, and a socket 7 is arranged on the side wall of the protection mirror support 6 and used for inserting or extracting the protection mirror 8. The temperature sensor 4 is mounted on the protective mirror support 6 and is close to the protective mirror 8 for detecting the temperature of the protective mirror 8. By the detection device, the temperature of the protective mirror 8 can be detected in real time, and whether the protective mirror 8 is polluted or not can be judged manually according to the temperature, and whether the protective mirror 8 needs to be processed or not is judged.
Example 5
As a best mode of the invention, referring to fig. 1 of the specification, the invention comprises a detection system for a powder feeding type 3D print head protection mirror, and the detection system comprises a temperature acquisition module 1, a temperature control module 2 and an input/output module 3 of a 3D printing equipment control unit. The temperature acquisition module 1 is used for acquiring the temperature of the protective mirror 8 in real time and sending the acquired temperature signal to the temperature control module 2. The temperature control module 2 is used for receiving the temperature signal and comparing the temperature signal with a preset threshold value, when the acquired temperature signal exceeds the highest threshold value, the temperature control module 2 is used for sending an alarm signal to the input/output module 3 of the 3D printing equipment control unit, and after the input/output module 3 of the 3D printing equipment control unit receives the alarm signal, the 3D printing process is controlled to be interrupted.
Specifically, the temperature acquisition range of the temperature acquisition module 1 is 0-150 ℃, and the setting range of the temperature control module 2 is 0-100 ℃. The pollution state of the protection mirror 8 is judged by comparing the collected temperature with the set temperature, thereby judging whether the 3D printing process is interrupted. Wherein, the setting range of the highest threshold, namely the alarm threshold of the protective mirror 8, can be set to be 50-70 ℃. When the temperature alarm threshold value is exceeded, the temperature control module 2 sends an alarm signal to the I/0 module of the 3D printing control system, and the 3D printing equipment prompts alarm and interrupts equipment operation.
The powder feeding type 3D printing head according to the present invention may be a powder feeding type 3D printing head commonly used in the art, or may adopt a structure provided in this embodiment, and the specific structural form is not limited by the present invention. Specifically, the invention further comprises detection equipment for the powder feeding type 3D printing head protective mirror, and the detection equipment is arranged on the powder feeding type 3D printing head with reference to the accompanying drawing 2 of the specification and the accompanying drawing 3 of the specification. The temperature acquisition module 1 is a temperature sensor 4, and the detection equipment comprises an upper printing head regulating block 9, the temperature sensor 4, a protective mirror bracket 5, a protective mirror support 6 and a lower printing head regulating block 10.
Referring to the accompanying fig. 5 and 6, the protective lens support 6 is in a box shape, the upper side and the lower side of the protective lens support 6 are respectively connected with the upper printing head adjusting block 9 and the lower printing head adjusting block 10 through bolts, the side wall of the protective lens support is provided with a socket 7, the protective lens 8 is arranged on the protective lens support 5, and the protective lens support 6 is movably connected with the protective lens support 5. The protection mirror support 6 and the protection mirror support 5 may be connected in a drawer type, for example, the protection mirror support 5 may slide back and forth in the protection mirror support 6 through a slide way between the protection mirror support 6 and the protection mirror support 5, so that the protection mirror 8 may be inserted into the protection mirror support 6 or withdrawn from the protection mirror support 6.
The side wall of the protective mirror support 6 is also provided with a small hole through which the temperature sensor 4 can pass and is mounted on the protective mirror support 6 by threads. Referring to fig. 4 of the specification, the temperature sensor 4 is placed close to the center of the protective mirror 8 and is offset from the center of the protective mirror 8.
The invention also comprises a detection method for the powder feeding type 3D printing head protective mirror, wherein the detection system or the detection equipment is utilized, the temperature sensor 4 collects the temperature of the protective mirror 8 in real time in the 3D printing process and sends the collected temperature to the temperature control module 2, and the temperature control module 2 compares the collected temperature with a preset threshold value to judge the pollution state of the protective mirror 8 and obtain whether an alarm signal is output or not; after receiving the alarm signal of the temperature control module 2, the I/0 (input/output) module of the 3D printing equipment control system processes the alarm signal, stops sending instructions to the laser and the 3D printing equipment, and interrupts the 3D printing process.
In view of the foregoing, it will be appreciated by those skilled in the art that, after reading the present specification, various other modifications can be made in accordance with the technical scheme and concepts of the present invention without the need for creative mental efforts, and the modifications are within the scope of the present invention.
Claims (10)
1. The detection method for the powder feeding type 3D printing head protective mirror is characterized by comprising the following steps of: in the 3D printing process, the temperature of the protective mirror (8) is collected in real time, and the collected temperature is compared with a preset threshold value to judge the pollution state of the protective mirror (8).
2. The method for detecting the powder feeding type 3D printing head protecting mirror according to claim 1, wherein the method comprises the following steps: at least two groups of preset thresholds respectively represent different pollution degrees; when the acquired temperature exceeds a corresponding threshold value, the protection mirror (8) is polluted to a corresponding degree, and a corresponding alarm signal is controlled to be sent.
3. The detection method for a powder feeding type 3D printhead protection mirror according to claim 1 or 2, wherein: and when the acquired temperature exceeds a preset highest threshold value, controlling to interrupt the 3D printing process.
4. A detecting system for sending powder formula 3D print head protection mirror, its characterized in that: the device comprises a temperature acquisition module (1), a temperature control module (2) and an input/output module (3) of a 3D printing equipment control unit; the temperature acquisition module (1) is used for acquiring the temperature of the protective mirror (8) in real time and sending an acquired temperature signal to the temperature control module (2); the temperature control module (2) is used for receiving the temperature signal and comparing the temperature signal with a preset threshold value, when the acquired temperature signal exceeds the highest threshold value, the temperature control module (2) is used for sending an alarm signal to the input/output module (3) of the 3D printing equipment control unit, and the input/output module (3) of the 3D printing equipment control unit controls the interruption of the 3D printing process after receiving the alarm signal.
5. The inspection system for a powder feed 3D printhead protector as set forth in claim 4, wherein: the setting range of the highest threshold value is 50-70 ℃.
6. The inspection system for a powder feed 3D printhead protector as set forth in claim 4, wherein: the temperature acquisition module (1) is a temperature sensor (4).
7. A check out test set for giving powder formula 3D print head protection mirror, its characterized in that: comprises a temperature sensor (4), a protective mirror bracket (5) and a protective mirror support (6); the upper side and the lower side of the protective mirror support (6) are respectively and movably connected with the powder feeding type 3D printing head; the protective mirror (8) is arranged on the protective mirror support (5), the protective mirror support (6) is movably connected with the protective mirror support (5), and a socket (7) is arranged on the side wall of the protective mirror support (6) and used for inserting or extracting the protective mirror (8); the temperature sensor (4) is arranged on the protective mirror support (6) and is close to the protective mirror (8) and used for detecting the temperature of the protective mirror (8).
8. The detection apparatus for a powder feeding type 3D printhead protector according to claim 7, wherein: the temperature sensor (4) is close to the central position of the protective mirror (8) and is staggered with the central position of the protective mirror (8).
9. The detection apparatus for a powder feeding type 3D printhead protector according to claim 8, wherein: the protective mirror support (6) is box-shaped.
10. The detection apparatus for a powder feeding type 3D printhead protector according to claim 9, wherein: the powder feeding type 3D printing head comprises a powder feeding type 3D printing head body, and is characterized by further comprising a printing head upper adjusting block (9) and a printing head lower adjusting block (10) which are arranged on the powder feeding type 3D printing head body, wherein the upper side and the lower side of the protective mirror support (6) are respectively connected with the printing head upper adjusting block (9) and the printing head lower adjusting block (10) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310575791.XA CN116277984A (en) | 2023-05-22 | 2023-05-22 | Detection method, system and equipment for powder feeding type 3D printing head protective mirror |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310575791.XA CN116277984A (en) | 2023-05-22 | 2023-05-22 | Detection method, system and equipment for powder feeding type 3D printing head protective mirror |
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| CN202310575791.XA Pending CN116277984A (en) | 2023-05-22 | 2023-05-22 | Detection method, system and equipment for powder feeding type 3D printing head protective mirror |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117161413A (en) * | 2023-11-02 | 2023-12-05 | 成都飞机工业（集团）有限责任公司 | Device and method for repairing 3D printing defects in real time |
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