Endoscope for detecting inner cavity of sand core
By integrating imaging and sand removal functions into the endoscope, the problem of cleaning the inside of 3DP printed sand cores has been solved, achieving efficient and precise cleaning results and improving the quality of castings and production efficiency.
Patent Information
- Application Number
- CN202520322663.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Traditional sand cleaning methods are difficult to completely remove the irregular structures and casting systems inside 3DP printed sand cores, and the detection methods are difficult to accurately observe the internal conditions, resulting in low cleaning efficiency and easy damage to the internal structure of the sand core.
An endoscope for inspecting the inner cavity of a sand core was designed, integrating an imaging unit and a sand cleaning unit. It cleans residual loose sand by negative pressure suction and achieves all-round inspection through an imaging rotating component. The control module coordinates the work of each component to achieve simultaneous inspection and cleaning.
It improves the efficiency and quality of cleaning the inner cavity of the sand core, reduces damage to fine structures, increases the yield of castings, and simplifies the production process.
Smart Images
Figure CN223664530U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of detection, especially an endoscope. BACKGROUND
[0002] 3DP printing technology is a new type of rapid prototyping technology, taking powder material as printing object, and has wide application range. In the field of casting, 3DP sand core has high size precision and can be used for rapid production of castings. The specific process is to first print sand core through 3DP, form the cavity of the casting after combining the sand core, and then pour molten metal to cool and form the casting. When producing the sand core through 3DP printing, it is important to ensure the cleanliness of the internal structure of the sand core. However, due to the complex internal structure of the sand core, including irregular structure, pouring system and exhaust passage, it is difficult to completely remove the internal sand through traditional sand cleaning method; and the current detection means cannot accurately observe the internal condition of the sand core, manual observation has low sand cleaning efficiency and is easy to damage the internal structure of the sand core. SUMMARY
[0003] In view of the above problems of difficult sand core inner cavity cleaning and difficult judgment of cleaning effect, it is necessary to propose a sand core inner cavity detection endoscope, which can not only realize the detection function of the sand core inner cavity, but also can perform secondary cleaning for the position with poor cleaning, realize the synchronization of detection and cleaning, and improve the cleaning efficiency.
[0004] A sand core inner cavity detection endoscope, comprising a control part, a pipeline, an imaging part and a sand cleaning part, the control part and the imaging part are distributed and arranged at both ends of the pipeline, the control part is electrically connected with the imaging part and the sand cleaning part to transmit relevant information or instructions, the sand cleaning part is arranged inside the control part and the pipeline, realizing the smallest volume of the endoscope and facilitating the cleaning of small cavities of the sand core.
[0005] Further, the control part comprises a shell, a display device, a control module, an operation panel and a hand holding piece; the display device is arranged on the upper surface of the shell to display the collected image of the sand core inner cavity; the control module is arranged inside the shell to control the operation of the whole endoscope, issue instructions, receive information, etc.; the operation panel is arranged on the upper surface of the shell to issue instructions to the imaging part and the sand cleaning part; the hand holding piece is arranged on the side wall of the shell to hold the endoscope; the display device and the operation panel are electrically connected with the control module to receive information and issue instructions.
[0006] Further, the imaging part is used to image the sand core cavity, and the image is presented on the control part in real time. The operator observes the image on the control part to determine whether there is residual sand in the sand core cavity. The imaging part includes an image acquisition part, an image sensing part, and a light source part. The image acquisition part is used to acquire the image of the sand core cavity. The image sensing part is used to transmit the acquired image to a display part. The light source part is used to compensate for the ambient light of the sand core cavity to obtain a good image.
[0007] Further, the imaging part further includes an imaging rotating part. The imaging rotating part is used to drive the image acquisition part to rotate, thereby realizing imaging of the sand core cavity from various angles and detecting residual sand in the sand core cavity from various angles to avoid missing sand in the sand core cavity causing casting defects.
[0008] Further, the sand cleaning part is used to clean the residual sand in the sand core cavity. The sand cleaning part uses a negative pressure sand suction method to clean the residual sand. The sand cleaning part includes a vacuum assembly, a sand pipe, and a sand collecting box. The vacuum assembly is used to provide suction power for the sand cleaning part. One end of the sand pipe is connected to the vacuum assembly, and the other end is flush with the end of the pipe far away from the control part, thereby realizing absorption and cleaning of the residual sand. The residual sand enters the sand collecting box after passing through the sand pipe and the vacuum assembly, that is, the sand collecting box is arranged at the sand outlet of the vacuum assembly. Alternatively, the sand pipe is arranged along the inside of the pipe. One end of the sand pipe is connected to the vacuum assembly, and the other end is connected to the end of the pipe far away from the control part and flush with the end.
[0009] Further, the vacuum assembly includes a vacuum pump, an inhalation channel, and an output channel. One end of the sand pipe is connected to the inhalation channel, and the sand collecting box is connected to the output channel, thereby providing power for the sand cleaning part. Further, the vacuum pump is connected to the control module. The pressure of the vacuum pump can be automatically adjusted according to the amount and particle size of the detected residual sand, thereby realizing efficient and high-quality sand cleaning.
[0010] Further, the sand collecting box is detachably arranged on the lower surface of the housing of the control part. The sand collecting box can be made of transparent material to facilitate observation of the amount of sand in the sand collecting box and timely cleaning of the sand collecting box.
[0011] Further, the pipe is made of high-strength flexible material, thereby facilitating the pipe to pass through the sand core cavity and being able to carry the imaging part and the sand cleaning part.
[0012] Further, the control module is the operation control brain of the whole endoscope, coordinates and controls each component of the endoscope, and stores each type of information received, so that the quality of the sand core inner cavity cleaning and inspection process is traceable.
[0013] The technical scheme of the utility model has the advantages that the sand core inner cavity sand cleaning and detection are simultaneously performed through the mode of setting the sand cleaning part in the pipeline and the control part and the mode of setting the imaging part at the end of the pipeline away from the control part, and the sand cleaning efficiency and quality are improved. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 is the whole structure schematic diagram of the utility model;
[0015] Figure 2 is the internal schematic diagram of the control part;
[0016] Figure 3 is the end structure schematic diagram of the pipeline away from the control part;
[0017] Among them, 1 - shell;2 - control module;3 - display device;4 - operation panel;5 - pipeline;6 - image acquisition piece;7 - light source piece;8 - holding hand piece;9 - sand collecting box;10 - vacuum pump;11 - imaging rotating piece. DETAILED DESCRIPTION
[0018] In order to more clearly illustrate the technical scheme of the utility model, the technical scheme of the invention content is described in detail in combination with the drawings, and obviously, the following description is some typical embodiments of the utility model, and other solutions can be obtained according to these embodiments without creative labor for those skilled in the art.
[0019] In this embodiment, the endoscope is used to detect the inner cavity of the 3D printing sand core.
[0020] In this embodiment, the sand core inner cavity detection endoscope comprises a control part, a pipeline 5, an imaging part and a sand cleaning part, the control part and the imaging part are arranged at both ends of the pipeline, the control part is electrically connected with the imaging part and the sand cleaning part to transmit relevant information or instructions, and the sand cleaning part is arranged in the control part and the pipeline 5, so that the volume of the endoscope is minimized, and the small cavity of the sand core is conveniently cleaned.
[0021] As a supplement to the embodiment, the control part comprises a shell 1, a display device 3, a control module 2, an operation panel 4, and a holding hand piece 8. The display device 3 is arranged on the upper surface of the shell 1 to display the image of the collected sand core inner cavity. The control module 2 is arranged inside the shell 1 to control the operation of the entire endoscope, issue instructions, receive information, etc. The operation panel 4 is arranged on the upper surface of the shell 1 to issue instructions to the imaging part and the sand cleaning part. The holding hand piece 8 is arranged on the side wall of the shell 1 to hold the endoscope. The display device 3 and the operation panel 4 are electrically connected with the control module 2 to receive information and issue instructions. Specifically, the display device 3 is a liquid crystal display screen, the operation panel 4 can be a separate button device or a touch button on the liquid crystal display screen, and the holding hand piece 8 is a cylindrical handle structure to facilitate the control of the control part through the holding hand piece 8. In the embodiment, the operation panel 4 is provided with a power button, a photographing button, a video shooting button, a lamp + button, a lamp - button, a suction + button, a suction - button, and a setting button to realize various operations of the endoscope.
[0022] As a supplement to the embodiment, the imaging part is used to image the sand core inner cavity and present the image in real time on the control part, and the operator observes the image on the control part to determine whether there is uncleaned sand in the sand core inner cavity. The imaging part comprises an image collection piece 6, an image sensing piece, and a light source piece 7. The image collection piece 6 is used to collect the image of the sand core inner cavity, the image sensing piece is used to transmit the collected image to the display device 3, and the light source piece 7 is used to compensate for the ambient light of the sand core inner cavity to obtain good imaging. Specifically, the image collection piece 6 is a high-definition optical lens, which can be a 3mm modular lens assembly, the light source piece 7 is a ring-shaped light belt, the image collection piece 6 is arranged in the middle of the ring-shaped light belt to realize uniform light compensation for the image collection piece, the light source piece 7 is arranged on the end surface of the end of the pipeline 5 away from the control part, the image collection piece 6 is arranged in the ring-shaped interior of the light source piece 7 through a support, one end of the support is connected with the image collection piece 6 and the other end is arranged on the inner wall of the pipeline 5, the image sensing piece is electrically connected with the image collection piece 6, and the image collected by the image collection piece 6 is transmitted to the display device 3 through the image sensing piece. The image sensing piece is arranged on the support.
[0023] As a further supplement to the present embodiment, the imaging part further comprises an imaging rotating member 11, which is used to drive the image collecting member 6 to rotate, so as to realize imaging of each angle of the sand core inner cavity, realize detection of residual sand in each angle of the sand core inner cavity, and avoid that residual sand is missed in the sand core inner cavity to cause casting clamping sand. Specifically, a steel wire is connected between the imaging rotating member 11 and the image collecting member 6, the steel wire transmits the driving force of the imaging rotating member 11 to the image collecting member 6, and the control effect on the image collecting member 6 is realized.
[0024] As a supplement to the present embodiment, the sand cleaning part is used to clean residual sand in the sand core inner cavity, and a negative pressure sand suction mode is adopted to clean the residual sand, which comprises a vacuum assembly, a sand pipe and a sand collecting box 9. The vacuum assembly is used to provide sand suction power for the sand cleaning part. One end of the sand pipe is connected with the vacuum assembly, and the other end penetrates through the inside of the pipeline 5 and is flush with the end of the other end of the pipeline 5 away from the control part, so as to realize absorption and cleaning of residual sand. After passing through the sand pipe and the vacuum assembly, the residual sand enters the sand collecting box 9, that is, the sand collecting box 9 is arranged at the sand outlet of the vacuum assembly. Specifically, the sand pipe is laid along the inside of the pipeline 5, one end of the sand pipe is connected with the vacuum assembly, and the other end is connected with the end of the other end of the pipeline 5 away from the control part and is flush with the end. Specifically, in order to prevent large particles of residual sand from blocking the small sand pipe, a partition net is arranged at the end of the sand pipe flush with the pipeline 5. The partition net can divide the adsorbed large pieces of sand into small pieces.
[0025] As a further supplement to the present embodiment, the vacuum assembly comprises a vacuum pump 10, an inhalation channel and an output channel. One end of the sand pipe is connected with the inhalation channel, and the sand collecting box 9 is connected with the output channel, so as to realize the purpose of providing power for the sand cleaning part. In the preferred embodiment of the present embodiment, the vacuum pump 10 is also connected with the control module 2. The pressure of the vacuum pump 10 can be automatically adjusted according to the amount and particle size of the detected residual sand, so as to realize high efficiency and high quality of automatic sand cleaning.
[0026] As a further supplement to the present embodiment, the sand collecting box 9 is arranged on the lower surface of the shell 1 of the control part in a detachable manner, and the sand collecting box 9 can be made of transparent material, so as to facilitate observation of the amount of sand in the sand collecting box 9 and timely cleaning of the sand collecting box 9. Specifically, the sand collecting box 9 can be made of transparent resin material or opaque material with an observation window, and the lower surface of the shell 1 is provided with buckles. The sand collecting box 9 is clamped on the lower surface of the shell 1 through the buckles. The lower surface of the shell 1 is also provided with a through hole, and the output channel extends into the sand collecting box 9 through the through hole, so as to realize the purpose of collecting the absorbed residual sand into the sand collecting box 9.
[0027] As a supplement to the embodiment, the pipeline 5 is made of high-strength flexible material, so as to facilitate the pipeline 5 to pass through the sand core inner cavity and to be able to carry the imaging part and the sand cleaning part. Specifically, the high-strength flexible material is a metal bellows or a polymer rubber material. The pipeline 5 can be flexibly bent, and the peripheral diameter of the pipeline 5 is 3mm-10mm, wherein 5mm is the optimal pipeline 5 diameter, which can not only be suitable for small cavities of the sand core, but also can accommodate the sand pipe.
[0028] As a supplement to the embodiment, the control module 2 is the operation control brain of the whole endoscope, which coordinates and controls each component of the endoscope and stores various types of information received, so as to realize the quality traceability of the sand core inner cavity cleaning and inspection process.
[0029] Through the implementation of the technical scheme in the production site, the fine structure and residual sand in the sand core inner cavity can be clearly observed, and the sand suction function is started in time when the residual sand is found, so as to clean the detected residual sand, effectively improving the cleanliness and quality of the sand core inner cavity; the pipeline 5 with high flexibility is set, avoiding the damage of the transmission sand cleaning mode to the fine structure of the sand core, and improving the yield rate of the sand core; the detection and cleaning are integrated, not only improving the detection and cleaning efficiency, but also reducing the steps of operation process and shortening the production rhythm.
[0030] The above embodiment is only a description of a typical application of the technical scheme of the present application, and reasonable extension can be made on the basis of reasonable and without creative labor.
Claims
1. A core cavity inspection endoscope characterized by comprising: The control part, the pipeline (5), the imaging part and the sand cleaning part, the control part and the imaging part are respectively arranged at both ends of the pipeline (5), the control part is electrically connected with the imaging part and the sand cleaning part to transmit relevant information or instructions, and the sand cleaning part is arranged in the control part and the pipeline (5).
2. The core cavity inspection endoscope of Claim 1, wherein The control part includes a shell (1), a display device (3), a control module (2), an operation panel (4) and a hand holding part (8), the display device (3) is arranged on the upper surface of the shell (1) to display the image of the collected sand core inner cavity, the control module (2) is arranged in the shell (1) to control the operation of the whole endoscope, the operation panel (4) is arranged on the upper surface of the shell (1) to give instructions to the imaging part and the sand cleaning part, and the hand holding part (8) is arranged on the side wall of the shell (1) to hold the endoscope, and the display device (3) and the operation panel (4) are electrically connected with the control module (2).
3. The core cavity inspection endoscope of Claim 2 wherein, The operation panel (4) is provided with a power button, a photographing button, a video shooting button, a lamp + button, a lamp - button, a suction + button, a suction - button and a setting button.
4. The core cavity inspection endoscope of Claim 1 wherein, The imaging part is used for projecting the image of the sand core inner cavity and displaying the image in real time on the control part, the imaging part includes an image collecting part (6), an image sensing part and a light source part (7), the image collecting part (6) is used for collecting the image of the sand core inner cavity, the image sensing part is used for transmitting the collected image to the display device (3), and the light source part (7) is used for compensating the ambient light of the sand core inner cavity.
5. The core cavity inspection endoscope of Claim 4 wherein, The imaging part further includes an imaging rotating part (11) used for driving the image collecting part (6) to rotate.
6. The core cavity inspection endoscope of Claim 4 wherein, The light source part (7) is a ring-shaped light belt, and the image collecting part (6) is arranged in the middle of the ring-shaped light belt, so that uniform light compensation for the image collecting part is realized.
7. The core cavity inspection endoscope of Claim 1 wherein, The sand cleaning part is used for cleaning the residual sand in the sand core inner cavity, the sand cleaning part adopts a negative pressure sand suction mode to clean the residual sand, and includes a vacuum assembly, a sand passing pipe and a sand collecting box (9), the vacuum assembly is used for providing suction power for the sand cleaning part, one end of the sand passing pipe is connected with the vacuum assembly, and the other end penetrates through the inside of the pipeline (5) and is flush with the end of the other end of the pipeline (5) away from the control part.
8. The core cavity inspection endoscope of Claim 7 wherein, The vacuum assembly includes a vacuum pump (10), a suction passage and an output passage, one end of the sand passing pipe is connected with the suction passage, and the sand collecting box (9) is connected with the output passage.
9. The core cavity inspection endoscope of Claim 8 wherein, The sand collecting box (9) is detachably arranged on the lower surface of the shell (1).
10. The core cavity inspection endoscope of Claim 1 wherein, The pipeline (5) is made of high-strength flexible material.