CN214470739U

CN214470739U - Intelligent real-time monitoring and measuring device for deformation in additive manufacturing process

Info

Publication number: CN214470739U
Application number: CN202022918031.9U
Authority: CN
Inventors: 焦世坤; 刘程程; 朱旭; 钱远宏; 吴冬冬; 许旭鹏; 刘莹莹; 陈荣
Original assignee: Beijing Xinghang Electromechanical Equipment Co Ltd
Current assignee: Aerospace Additive Technology Beijing Co Ltd; Beijing Xinghang Electromechanical Equipment Co Ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-10-22
Anticipated expiration: 2030-12-08

Abstract

The utility model relates to an intelligent real-time monitoring and measuring device for deformation in the additive manufacturing process, which comprises a tool platform, a deformation sounding device and a deformation detecting device; the tool platform is used for placing a substrate which is matched with the tool platform in the additive manufacturing forming process; the deformation penetration device is used for deformation measurement in the additive manufacturing and forming process; the deformation detection device is connected with the deformation penetration device in a wireless or wired mode and used for monitoring the deformation quantity of the deformation penetration device in contact with the substrate penetration in the forming process in real time, and the deformation condition of probes in different areas of the substrate is monitored on the deformation detection device in real time to obtain the real-time deformation quantity of the substrate in the additive manufacturing forming process. The utility model discloses the deformation volume of some positions department that can real time monitoring shaping process base plate for guide the selection optimization of shaping process technical scheme, improve the shaping process quality.

Description

Intelligent real-time monitoring and measuring device for deformation in additive manufacturing process

Technical Field

The utility model belongs to the technical field of the vibration material disk, concretely relates to vibration material disk process deformation intelligence real time monitoring measuring device.

Background

In the prior art, the additive manufacturing technology is based on a high-energy heat source (high-energy beams such as laser, electron beam, electric arc and the like), the forming of a workpiece is realized by in-situ metallurgical melting of raw materials, a metal workpiece is generally formed on a substrate, and the substrate is cut off as required after the forming is finished.

Because the high-energy heat source transfers most of heat to the substrate in a heat conduction mode in the process of melting raw materials, the substrate is deformed and even cracked due to unreasonable technological parameters in the forming process and the accumulation of heat under the circulation action of the high-energy heat source, the normal operation of the additive manufacturing process is influenced, and the forming process is interrupted and even the manufactured parts are scrapped. Although the deformation risk of the forming process is reduced by the traditional tooling device, the deformation condition of the forming process is difficult to quantitatively explain due to the fact that the deformation quantity of the forming process cannot be monitored in real time.

Disclosure of Invention

The utility model aims at providing a vibration material disk process deformation intelligence real time monitoring measuring device can the deformation volume of real time monitoring shaping process base plate leading position department, guides the shaping process technical scheme to select the optimization, improves the shaping process quality.

An intelligent real-time deformation monitoring and measuring device in the additive manufacturing process comprises a tool platform, a deformation penetration device and a deformation detection device. The tool platform is used for placing a substrate which is matched with the tool platform in the additive manufacturing forming process; the deformation penetration device is used for deformation measurement in the additive manufacturing and forming process; the deformation detection device is connected with the deformation penetration device in a wireless or wired mode and used for monitoring the deformation quantity of the deformation penetration device in contact with the substrate penetration in the forming process in real time, and the deformation conditions of different areas of the substrate are monitored on the deformation detection device in real time to obtain the real-time deformation quantity of the substrate in the additive manufacturing forming process.

Further, the deformation penetration sounding device is specifically set as a probe.

Furthermore, a base plate matched with the deformation intelligent real-time monitoring and measuring device is further arranged and used for placing the material increase manufacturing forming part, and the base plate is fixed on the tool platform and is in contact with a probe of the deformation penetration device in a penetration manner.

Further, at least 16 deformation measuring points are arranged on the tool platform, and a probe of a deformation penetration device is correspondingly arranged at each measuring point.

Further, each probe always touches the substrate in a sounding manner.

The beneficial effects of the utility model

The utility model discloses an increase material manufacturing process deformation intelligence real time monitoring measuring device, the deformation volume of some positions department that can real time monitoring shaping process base plate for guide the selection optimization of shaping process technical scheme, improve the shaping process quality. On one hand, deformation amount in the forming process can be greatly reduced by utilizing a tool platform in the device, on the other hand, deformation of a substrate in the forming process can be monitored and fed back in real time, so that forming process parameters are optimized, the deformation amount is reduced, the forming process is ensured to be stably carried out, the forming quality of a material increase manufacturing part is ensured, the qualification rate of a product is improved, and the comprehensive cost of development is reduced.

Drawings

FIG. 1 is a schematic diagram of an intelligent real-time deformation monitoring and measuring device in an additive manufacturing process;

FIG. 2 is a schematic view of a shape-changing sounding device;

FIG. 3 is a schematic diagram of the relationship between a substrate and a tooling platform when the substrate is placed on the tooling platform before forming.

In the figure: 1. the device comprises a tool platform, 2. a deformation penetration device, 3. a deformation detection device, 4. a substrate and 5. parts.

Detailed Description

For better understanding of the technical solutions of the present invention, the present invention includes but is not limited to the following embodiments, and similar techniques and methods should be considered as being within the scope of the present invention. In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.

It should be clear that the described embodiments of the invention are only some, not all embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

Shown by fig. 1-3, the utility model provides an intelligent real-time monitoring measuring device for deformation in the additive manufacturing process. The measuring device comprises a tool platform 1, a deformation penetration device 2 and a deformation detection device 3. The tool platform 1 is used for placing a substrate 4 matched with the additive manufacturing forming process, meanwhile, the tool platform 1 and the substrate 4 can be subjected to subsequent post-treatment processes together, and the tool platform 1 can strengthen the deformation resistance of the substrate 4, particularly a thin substrate; the deformation penetration device 2 is specifically set as a probe, as shown in fig. 2, at least 16 deformation measuring points are arranged on the tool platform 1, and each measuring point is provided with a probe for deformation measurement in the additive manufacturing forming process, so that deformation of the substrate 1 at a deformation position needing to be monitored in a key mode is monitored in real time, and each probe is always in penetration contact with the substrate. The deformation detection device 3 is connected with the deformation penetration device 2 in a wireless or wired mode and used for monitoring deformation of the deformation penetration device 2 in contact with the substrate penetration in real time in the forming process, specifically, the deformation detection device 3 monitors deformation of each probe in real time, and the deformation of each probe reflects deformation and change of the substrate 4, so that the deformation of the probes at different positions of the substrate 4 is monitored on the deformation detection device 3 in real time, real-time deformation of the substrate 4 in the material increase manufacturing forming process can be monitored in real time, and the deformation is fed back to the forming process scheme, so that the process scheme is optimized, the deformation of the substrate 4 is reduced, and the forming process is ensured to be stably carried out. The base plate 4 used in cooperation with the deformation intelligent real-time monitoring measuring device is used for placing the additive manufacturing forming part, is fixed on the tool platform 1 and is in contact with the probe of the deformation penetration device 2 in a penetration manner. The additive manufacturing process of the shaped part 5 is completed on the substrate 4.

The utility model also provides an additive manufacturing process deformation intelligence real time monitoring measuring device is in the additive manufacturing process of shaping part deformation real time monitoring's application.

The specific real-time process is as follows:

s1, preparing before additive manufacturing and forming:

(1) the fixture platform is fixed, and the fixture platform 1 is fixed on the forming cavity platform through the pressing plate and the fastening bolts, so that the phenomena of displacement and shaking of the fixture in the forming process are prevented.

(2) The base plate 1 is fixed with the tooling platform: the substrate 4 satisfying the size and quality requirements is fixed on the tooling platform 1, as shown in fig. 3.

(3) And (3) installing a deformation sounding device 2: the deformation penetration device 2 is installed at the position of a corresponding deformation measuring point arranged on the tooling platform 1, as shown in fig. 2, at least 16 deformation measuring points are arranged, and the deformation penetration device can also be adjusted according to requirements. By adjusting the position of the sounding probe, each probe is guaranteed to be in sounding contact with the substrate 4.

(4) Starting and zeroing the deformation detection device: and opening the deformation detection device 3, and enabling the deformation amount of the existing detection point to be zero.

(5) Verifying the effectiveness and the sensitivity of the deformation penetration sounding device 2: the probe of the deformation penetration sounding device 2 is a freely telescopic device, and after the deformation detection device 3 is started and returns to zero, the relative deformation amount of the current position of each deformation penetration sounding device 2 is zero. Validity and flexibility verification are carried out on all the deformation penetration devices 2, each probe of the deformation penetration devices 2 can displace relative to an initial zero point through manual adjustment of each deformation penetration probe, and deformation amount changes on the deformation detection device 3 under normal conditions to generate fluctuation of a deformation curve. And components in the intelligent deformation real-time monitoring and measuring device without any deformation curve fluctuation and fluctuation feedback delay are replaced, so that the effectiveness and the flexibility of the deformation sounding device 2 are ensured. In the additive manufacturing and forming process of laser, electric arc, electron beam and the like, the heat accumulation of different areas of the substrate 4 is different due to the influence of the change of process parameters, when the stress generated by the heat accumulation of a certain area of the substrate 4 exceeds the yield strength of a material, the part at the area of the substrate 4 generates macroscopic stress deformation, at this moment, the part at the area of the substrate 4 and the substrate 4 warp, and the probe of the deformation penetration device 2 is in penetration contact with the substrate 4 at any moment, so the change of the deformation amount of each probe of the deformation penetration device 2 is reflected as the deformation amount and the change of the warping of the substrate 4. The deformation penetration sounding device 2 relative deformation when taking shape and beginning is zero, and along with the going on of forming process, deformation penetration sounding device 2 then can change along with the deformation that forming process produced, and at this verification in-process, through adjusting each penetration sounding probe repeatedly, look over the deformation displacement condition of corresponding check point in the deformation monitoring devices 3, guarantee that the penetration sounding probe of each monitoring point is effective and sensitive.

(6) The deformation detection device 3 returns to zero again: after the effectiveness and the sensitivity of the deformation penetration device 2 are verified, the deformation quantity of each detection point is reset to zero again, and the preparation work before the additive manufacturing forming is completed.

S2, in the additive manufacturing and forming process:

1) forming parts: and printing and forming the part according to a certain forming process scheme. The high-energy heat is selectively accumulated according to a preset path and strategy, the heat input quantity is gradually increased along with the forming process, and the heat accumulation caused by the heat input quantity is also gradually increased, so that the substrate is possibly deformed and even cracked in the forming process.

2) Deformation monitoring: along with the progress of the part forming process, different deformation conditions can be generated at different positions of the substrate 4, and each probe of the deformation penetration testing device 2 always contacts with the substrate 4, so that each probe can generate displacement along with the deformation condition of the substrate 4; the specific amount of change in the deformation of the deformation penetration means 2 is detected by the deformation detecting means 3.

3) Deformation measurement: the deformation detection device 3 measures the displacement change of each deformation sounding probe in real time, and performs deformation data real-time feedback on each measurement point, so that the deformation change condition in the additive manufacturing forming process is monitored.

4) Optimizing a forming process scheme: when the deformation of some measuring points in the monitored deformation detecting device 3 is too abnormal, the forming process scheme is optimized in time, so that the deformation of the part forming process is reduced, and the part forming process is ensured. Before forming, the deformation detection device sets an absolute deformation threshold value of a certain area position of the substrate and relative deformation threshold values of different measurement points in advance, and in the forming process, when an absolute deformation value of a certain area position of the substrate 4 reflected by each probe monitored by the deformation detection device exceeds the absolute deformation threshold value or the relative deformation value of the different deformation measurement points exceeds the relative deformation threshold value set in advance of the deformation measurement points, the forming detection device 3 can prompt that a forming process scheme needs to be optimized so as to prevent the risk of cracking caused by the fact that the forming deformation of the substrate 4 is continuously increased.

Since the deformation is caused by the stress of the forming process, the non-uniformity of the deformation represents the non-uniformity of the stress of the forming process, and the non-uniformity of the stress of the forming process can cause the cracking of the part caused by the stress. The deformation detecting device 3 monitors the deformation of each probe to form a deformation curve, the curve feeds back the change of the deformation sounding probes at different measuring point positions relative to the deformation in real time, and the deformation of each different position reflects the deformation and the change of different areas of the substrate. Therefore, the deformation curve of the deformation detection device 3 can directly reflect the deformation amount of different positions of the part in the forming process. When the difference in the deformation amount of each probe of all the deformation penetration devices 2 monitored by the deformation detection device 3 is not large, it indicates that the stress level of each region of each substrate 4 is equivalent in the forming process, so that the phenomenon that the substrate 4 is cracked due to non-uniform stress is not generated.

S3, after the additive manufacturing and forming are completed:

and <1> after the part 5 is formed, the deformation detection device 3 gives out deformation curves and values of all measurement points as basic data for subsequent process optimization.

And (2) removing the deformation penetration sounding device 2, and taking out the deformation penetration sounding device 2 after data acquisition is completed so as to continue to be used next time.

And <3> carrying out subsequent heat treatment and other processes on the substrate 4 and the part 5 of the associated tool platform 1 together to prevent deformation caused by residual strain.

The foregoing description shows and describes several preferred embodiments of the present invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the application as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. An intelligent real-time deformation monitoring and measuring device in the additive manufacturing process is characterized by comprising a tool platform (1), a deformation sounding device (2) and a deformation detecting device (3); the tool platform (1) is used for placing a substrate (4) which is used in a matched mode in the additive manufacturing forming process; the deformation penetration device (2) is used for deformation measurement in the additive manufacturing forming process; the deformation detection device (3) is connected with the deformation penetration device (2) in a wireless or wired mode and used for monitoring the deformation amount of the deformation penetration device (2) in contact with the base plate penetration in the forming process in real time, and the deformation condition of probes in different areas of the base plate is monitored in real time on the deformation detection device (3) to obtain the real-time deformation amount of the base plate in the additive manufacturing forming process.

2. The intelligent real-time monitoring and measuring device for deformation in the additive manufacturing process according to claim 1, wherein the deformation penetration device (2) is specifically configured as a probe.

3. The intelligent real-time monitoring and measuring device for deformation in the additive manufacturing process according to claim 2, wherein: the tool platform is characterized by further comprising a base plate (4) matched with the deformation intelligent real-time monitoring measuring device and used for placing a material increase manufacturing forming part (5), wherein the base plate is fixed on the tool platform (1) and is in contact with a probe of the deformation penetration device (2).

4. The intelligent real-time deformation monitoring and measuring device in the additive manufacturing process according to claim 1 or 2, wherein at least 16 deformation measuring points are arranged on the tool platform (1), and a probe of the deformation penetration device (2) is correspondingly arranged at each measuring point.

5. Intelligent real-time monitoring and measuring device for deformation in an additive manufacturing process according to claim 4, wherein each probe is in contact with the substrate (4) at all times.