Sand blasting device and processing technology thereof

Abstract

The invention relates to the technical field of workpiece surface treatment, and discloses a sand blasting device and a machining technology thereof.The device comprises a machine body, a machining mechanism capable of driving a workpiece to move and an angle adjusting structure capable of driving a sand blasting head to swing are arranged in the machine body, and the device further comprises a high-definition camera, a bearing seat capable of moving between the machine body and a post-treatment bin and a PLC; in the working process, the high-definition camera collects the contour of a workpiece, and the PLC synchronously generates a sand blasting path used for cooperatively controlling the angle adjusting structure and the machining mechanism according to the contour of the workpiece and is matched with blowing-off and drying technological parameters in the aftertreatment bin in a self-adaptive mode. And after the sand blasting operation is completed, the bearing seat automatically moves into the post-processing bin, and the window self-cleaning mechanism is linked in the moving process to complete self-maintenance. The technical problems that when existing sand blasting equipment treats complex workpieces, adaptability is poor, the process flow is not coherent, and the automation degree is low are solved, and the precision, efficiency and intelligent level of sand blasting machining are remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of workpiece surface treatment, in particular to a sand blasting device and a processing technology thereof. BACKGROUND

[0002] As a kind of efficient surface treatment means, sand blasting technology is widely used in mechanical manufacturing, aerospace, medical devices and other fields, for removing workpiece surface oxide layer, burr, improving surface roughness or stress relief. With the increasing demand of industrial automation and precision manufacturing, traditional semi-automatic or manual sand blasting equipment has been difficult to meet the requirements of modern production for high efficiency, high precision and high stability.

[0003] Although the existing automatic sand blasting equipment improves the efficiency to a certain extent, there are still many defects in actual application. First, in terms of processing adaptability and intelligence, most of the equipment relies on pre-fixed program or manual teaching to generate sand blasting path. When facing small batch, complex or contour variable workpieces, the existing equipment lacks flexibility and cannot dynamically adjust the sand blasting path and process parameters based on real-time shape information of the workpiece, which makes it difficult to guarantee the sand blasting effect of complex curved surface or structural dead angle, and the processing precision and quality are highly dependent on the experience of operators. Secondly, in terms of process integration and efficiency, sand blasting process and subsequent cleaning and drying process are usually independent of each other, which needs to be transported between different stations or even different equipment. This process separation leads to a large amount of non-processing time consumption, secondary pollution risk in workpiece turnover process, and the need for additional handling devices and operators, which significantly reduces the overall automation level and efficiency of the production line. Thirdly, in terms of stability and maintenance of equipment operation, the dust and abrasive particles generated in the sand blasting cavity are easy to pollute the observation window or monitoring camera, which makes the operator unable to monitor the sand blasting status in real time, and also makes the automatic function relying on visual system invalid. At the same time, the traditional sand blasting equipment adopts open loop control, which lacks real-time monitoring of core process parameters (such as abrasive flow). Once there is a blockage or abnormality, the problem cannot be found until the processing is completed, causing material waste and workpiece scrap.

[0004] Therefore, the present application proposes a sand blasting device and a processing technology thereof to solve the problems of the prior art. SUMMARY

[0005] The purpose of the present application is to provide a sand blasting device and a processing technology thereof, which solves the problems of low processing precision, low production efficiency and unstable operation caused by lack of visual adaptive ability, incoherent process flow and insufficient self-maintenance ability of traditional automatic sand blasting device when processing complex workpieces.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a sandblasting device, comprising a body, a sealing door installed on the front surface of the body, an observation window and an operation port installed on the sealing door, a support base installed inside the body, a processing mechanism installed inside the support base, multiple sandblasting heads installed inside the body, an angle adjustment structure installed on the upper side of each sandblasting head, a high-definition camera installed on the inner wall of the body, a self-cleaning mechanism for the viewing window installed on the front side of the support base, a post-processing chamber installed on the right side of the body, a blowing and drying mechanism installed inside the post-processing chamber, and a PLC controller installed on the front surface of the post-processing chamber;

[0007] The PLC controller is configured to perform the following operations:

[0008] Intelligent path planning and parameter self-matching module: Based on the workpiece contour captured by the high-definition camera, it synchronously generates a sandblasting path for coordinated motion and adaptively matches the optimal blowing and drying process parameters.

[0009] Closed-loop sandblasting execution module: Performs sandblasting according to the sandblasting path and uses real-time feedback from the abrasive flow sensor to perform closed-loop monitoring of the sandblasting process;

[0010] Linkage transfer and energy supply control module: After the sandblasting operation is completed, the control carrier moves into the post-processing chamber. During this process, the linkage window self-cleaning mechanism works automatically, and after it is in place, it supplies energy to the processing mechanism through the power contacts.

[0011] Preferably, the processing mechanism includes a rotary motor, the output end of which is fixedly connected to a rotating shaft, a turntable is fixedly connected to the upper side of the rotating shaft, and a processing seat is mounted on the upper side of the turntable.

[0012] Preferably, the angle adjustment structure includes a servo motor, which is mounted on the left surface of the machine body. The output end of the servo motor is fixedly connected to a swing frame, and the right side of the swing frame is rotatably connected to the inside of the machine body. The swing frame is fixedly connected to the outer wall of the sandblasting head.

[0013] Preferably, the self-cleaning mechanism of the window includes a slide rail, which is installed on the inner wall of the machine body and the post-processing compartment. A slider is slidably connected inside the slide rail. An electric push rod is installed on the inner wall of the machine body. The telescopic end of the electric push rod is fixedly connected to the support seat. A linkage rod is fixedly connected to the front surface of the support seat. A cleaning scraper is connected to the other end of the linkage rod. A guide block is fixedly connected to the front side of the cleaning scraper. A guide rail is fixedly connected to the rear side of the sealing door. The guide block is slidably connected inside the guide rail.

[0014] Preferably, the blowing drying mechanism comprises a plurality of high-pressure air nozzles mounted on the inner top of the post-processing bin, the upper side of the high-pressure air nozzles is fixedly connected with an air source pipeline in communication, a hot air generator and a blower are further mounted in the post-processing bin, and the air outlet of the blower is in communication with the air inlet of the hot air generator; a temperature sensor is mounted on the inner wall of the post-processing bin.

[0015] Preferably, the lower side of the rotating disc is provided with a recovery bin, the inside of the recovery bin is provided with an abrasive flow sensor, the lower side of the recovery bin is provided with a collection box, and the lower side of the post-processing bin is provided with a secondary recovery funnel in communication with the recovery bin.

[0016] Preferably, the bearing seat and the inner wall of the post-processing bin are correspondingly provided with automatic docking power contacts, when the bearing seat moves into the post-processing bin, the automatic docking power contacts are in electrical contact with each other, for supplying power to the rotating motor.

[0017] Preferably, an electric control box is mounted on the left side of the machine body, and an instrument panel and a pressure sensor are mounted on the front side of the machine body.

[0018] A processing technology of a sand blasting device, comprising the following steps:

[0019] S1, intelligent analysis and parameter customization, using a high-definition camera to collect three-dimensional contour data of a workpiece, a PLC controller generating a sand blasting path for cooperatively controlling an angle adjusting structure and a processing mechanism according to the contour data, and adaptively matching a process parameter set of a blowing drying mechanism in a post-processing bin;

[0020] S2, closed-loop composite motion sand blasting: the PLC controller retrieves the sand blasting path, controls the angle adjusting structure and the processing mechanism to perform composite motion, performs sand blasting work, and monitors the feedback signal of the abrasive flow sensor in real time, to perform closed-loop monitoring on the sand blasting process;

[0021] S3, linkage process transfer and self-maintenance: after the sand blasting work is completed, the PLC controller drives the bearing seat to move from the machine body into the post-processing bin, and in the moving process, the viewing window is cleaned by the linkage window self-cleaning mechanism;

[0022] S4, energy continuation and adaptive post-processing: when the bearing seat moves into the post-processing bin, the automatic docking power contacts continue to supply power to the processing mechanism, the PLC controller retrieves the adaptively matched process parameter set, and drives the blowing drying mechanism to blow and dry the workpiece.

[0023] Preferably, the S2 step further comprises: the PLC controller selectively opens part of the sandblasting heads according to the sandblasting path, dynamically adjusts the swing amplitude and frequency of the swing frame, and uses the abrasive flow sensor to monitor the abrasive flow in real time; when the monitoring value deviates from the preset threshold, the PLC controller controls the device to alarm or stop.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The present application sets up a high-definition camera and an intelligent path planning and parameter self-matching module in the PLC controller, which can automatically collect workpiece contour data and generate a sandblasting path for compound motion and customized post-processing process parameters simultaneously. This enables the device to automatically adapt to different shapes, especially complex structures, without the need for manual programming or adjustment, ensuring high precision and consistency of processing.

[0026] 2. The present application seamlessly integrates sandblasting and blowing and drying into an integrated device through a movable carrier seat. After sandblasting, the workpiece is automatically transferred and powered through automatic docking power contacts to cooperate with post-processing, achieving full-process automation, significantly shortening the production cycle and improving overall efficiency.

[0027] 3. The present application improves the reliability of the device through ingenious linkage design and closed-loop monitoring. The window self-cleaning mechanism is linked to the movement of the carrier seat, automatically cleaning the observation window during process transfer, ensuring the continuous effectiveness of the vision system. At the same time, the abrasive flow sensor performs real-time closed-loop monitoring of the sandblasting process, enabling timely detection and early warning of process abnormalities, reducing downtime and manual maintenance costs caused by faults. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a perspective view of the present application;

[0029] Figure 2 is a side view of the present application;

[0030] Figure 3 is a schematic view of the internal structure of the present application;

[0031] Figure 4 is a schematic view of the local structure of the present application;

[0032] Figure 5 is a schematic view of the internal structure of the carrier seat of the present application;

[0033] Figure 6 is a schematic view of the internal structure of the window self-cleaning mechanism of the present application;

[0034] Figure 7 is a schematic view of the guide block structure of the present application;

[0035] Figure 8 It is the internal structure schematic view of the recycling bin of the application;

[0036] Figure 9 It is the process flow diagram of the application.

[0037] Wherein, 1, body; 2, sealing door; 3, observation window; 4, operation port; 5, angle adjusting structure; 51, swing rack; 52, servo motor; 6, sand blasting head; 7, processing mechanism; 71, rotary motor; 72, rotating shaft; 73, rotating disc; 74, processing seat; 8, bearing seat; 9, PLC controller; 10, abrasive flow sensor; 11, window self-cleaning mechanism; 111, sliding rail; 112, sliding block; 113, electric push rod; 114, automatic butt joint power contact; 115, linkage rod; 116, cleaning scraper; 117, guide rail; 118, guide block; 12, post-processing bin; 13, blowing drying mechanism; 131, high-pressure air nozzle; 132, hot air generator; 133, secondary recovery hopper; 134, air supply pipeline; 135, air blower; 136, temperature sensor; 14, recycling bin; 15, collection box; 16, electric control box; 17, instrument panel; 18, pressure sensor; 19, high-definition camera. DETAILED DESCRIPTION

[0038] The application will be further described below in conjunction with the accompanying drawings Figure 1 - the accompanying drawings Figure 8 The application will be further described below in conjunction with the accompanying drawings

[0039] The application provides a sand blasting device, which comprises a body 1, a sealing door 2 is installed on the front surface of the body 1, an observation window 3 and an operation port 4 are installed on the sealing door 2, a bearing seat 8 is arranged in the body 1, a processing mechanism 7 is installed in the bearing seat 8, the processing mechanism 7 comprises a rotary motor 71, the output end of the rotary motor 71 is fixedly connected with a rotating shaft 72, the upper side of the rotating shaft 72 is fixedly connected with a rotating disc 73, the upper side of the rotating disc 73 is installed with a processing seat 74, a plurality of sand blasting heads 6 are arranged in the body 1, an angle adjusting structure 5 is arranged on the upper side of the sand blasting head 6, the angle adjusting structure 5 comprises a servo motor 52, the servo motor 52 is installed on the left surface of the body 1, the output end of the servo motor 52 is fixedly connected with a swing rack 51, the right side of the swing rack 51 is rotatably connected in the body 1, the swing rack 51 is fixedly connected with the outer wall of the sand blasting head 6, a high-definition camera 19 is installed on the inner wall of the body 1, a window self-cleaning mechanism 11 is arranged on the front side of the bearing seat 8, a post-processing bin 12 is installed on the right side of the body 1, a blowing drying mechanism 13 is arranged in the post-processing bin 12, a PLC controller 9 is installed on the front surface of the post-processing bin 12, an electric control box 16 is installed on the left side of the body 1, an instrument panel 17 and a pressure sensor 18 are installed on the front side of the body 1.

[0040] The PLC controller 9 is configured to perform the following operations:

[0041] Intelligent path planning and parameter self-matching module: according to the workpiece profile collected by the high-definition camera 19, a sandblasting path for cooperative motion is generated synchronously, and the optimal blowing and drying process parameters are adaptively matched;

[0042] Closed-loop sandblasting execution module: sandblasting is performed according to the sandblasting path, and real-time feedback of the abrasive flow sensor 10 is used to monitor the sandblasting process in a closed loop;

[0043] Linkage transfer and energy continuation control module: after the sandblasting operation is completed, the carrier seat 8 is moved into the post-processing chamber 12, during which the linkage window self-cleaning mechanism 11 automatically works, and after reaching the position, the power contact 114 is automatically docked to continue the energy supply for the machining mechanism 7;

[0044] Specifically, the main body of the device is the machine body 1, which is designed as a closed structure to isolate the dust and abrasive generated during sandblasting. A sealable door 2 is installed on the front surface of the machine body 1 to ensure the safety of operation and the sealing of the internal environment. The sealable door 2 is embedded with a transparent observation window 3 to allow the operator to observe the internal sandblasting state in real time, and an operating port 4 is also provided for easy loading and unloading of workpieces or simple maintenance. In the interior of the machine body 1, a core machining area is provided with a carrier seat 8. The carrier seat 8 is integrated with a machining mechanism 7, which includes a rotary motor 71 whose output end extends upward through a rotating shaft 72 and is fixedly connected to a turntable 73. The workpiece to be processed is stably installed on a machining seat 74 above the turntable 73, and the sandblasting operation is completed by a plurality of sandblasting heads 6 inside the machine body 1. The sandblasting heads 6 are connected to an angle adjusting structure 5 above them, and the core of the structure is a servo motor 52 installed on the left surface of the machine body 1. The output end of the servo motor 52 is fixedly connected to a swing bracket 51, which is rotatably connected to the inside of the machine body 1 through a pivot on the right side, and its main body is fixedly connected to the outer walls of the plurality of sandblasting heads 6. Through the precise driving of the servo motor 52, the swing bracket 51 can realize high-speed and large-angle reciprocating swing, thereby driving the sandblasting heads 6 to spray the workpiece surface with a preset trajectory. In order to realize intelligent processing, a high-definition camera 19 is installed on the inner wall of the machine body 1 at a high position for three-dimensional profile scanning and image recognition of the workpiece before processing. The right side of the machine body 1 is connected to the post-processing chamber 12 through an isolation structure, forming an integrated machining and post-processing unit. The post-processing chamber 12 is integrated with a blowing and drying mechanism 13 for blowing and drying the workpiece after sandblasting.

[0045] The window self-cleaning mechanism 11 comprises a sliding rail 111 mounted on the inner wall of the body 1 and the post-treatment bin 12, a sliding block 112 slidably connected inside the sliding rail 111, an electric push rod 113 mounted on the inner wall of the body 1, the telescopic end of the electric push rod 113 fixedly connected with the bearing seat 8, a linkage rod 115 fixedly connected to the front surface of the bearing seat 8, a cleaning scraper 116 connected to the other end of the linkage rod 115, a guide block 118 fixedly connected to the front side of the cleaning scraper 116, a guide rail 117 fixedly connected to the rear side of the sealing door 2, and the guide block 118 slidably connected inside the guide rail 117.

[0046] Specifically, when the sandblasting operation is completed, the PLC controller 9 issues an instruction to drive the electric push rod 113 mounted on the inner wall of the body 1 to start elongation. The elongation of the electric push rod 113 pushes the entire bearing seat 8 to move stably along the sliding rail 111 mounted on the inner wall of the body 1 and the post-treatment bin 12 to the direction of the post-treatment bin 12. At the same time when the bearing seat 8 starts to move, the linkage rod 115 fixedly connected to the front surface thereof also moves forward. The other end of the linkage rod 115 is connected with the cleaning scraper 116. Under the pushing of the linkage rod 115, the cleaning scraper 116 does not swing randomly, but is constrained by the guide block 118 inside the guide rail 117, and can only slide horizontally along the direction of the guide rail 117. The guide rail 117 is accurately arranged at a position close to the inner surface of the observation window 3. With the bearing seat 8 completely moved from the body 1 into the post-treatment bin 12, the cleaning scraper 116 completes a complete scraping from one end to the other end of the inner surface of the observation window 3, effectively removing the dust and abrasive attached to the window, and ensuring the clarity of the vision system.

[0047] The bearing seat 8 and the inner wall of the post-treatment bin 12 are correspondingly provided with automatic docking power contacts 114. When the bearing seat 8 moves into the post-treatment bin 12, the automatic docking power contacts 114 are in electrical contact with each other, for supplying power to the rotating motor 71. The blowing and drying mechanism 13 comprises a plurality of high-pressure air nozzles 131 mounted on the inner top of the post-treatment bin 12. The high-pressure air nozzles 131 are fixedly connected with a gas source pipeline 134 on the upper side. The post-treatment bin 12 is also provided with a hot air generator 132 and a blower 135. The air outlet of the blower 135 is in communication with the air inlet of the hot air generator 132. A temperature sensor 136 is mounted on the inner wall of the post-treatment bin 12.

[0048] Specifically, after the sandblasting operation and the window self-cleaning are completed, the carrier seat 8 has been completely moved to the predetermined position in the post-processing bin 12, at this time, the automatic butt joint power contact 114 installed on the outer wall of the carrier seat 8 is accurately matched and electrically contacted with the power contact previously arranged at the corresponding position of the inner wall of the post-processing bin 12, after the energy connection is completed, the PLC controller 9 retrieves the post-processing process parameter set previously matched according to the workpiece profile, and starts the blowing and drying mechanism 13, first, the PLC controller 9 opens the valve connected with the air source pipeline 134, high-pressure air is sprayed from the multiple high-pressure air nozzles 131 installed at the top of the post-processing bin 12, at the same time, the rotating motor 71 that has obtained power drives the workpiece to rotate at a set speed, ensuring that the high-pressure airflow can blow all surfaces of the workpiece without dead angles, efficiently removing residual abrasive and dust, after the blowing step is completed, the system automatically switches to the drying program, the air blower 135 starts to blow air into the hot air generator 132 for heating, the generated hot air is uniformly sent into the post-processing bin 12, the temperature sensor 136 installed on the inner wall of the bin monitors the temperature in the bin in real time and feeds back the data to the PLC controller 9, and the PLC controller 9 adjusts the power of the hot air generator 132 according to the feedback signal, so as to accurately keep the temperature in the bin constant at the value set by the process parameter.

[0049] The lower side of the rotating disc 73 is provided with a recovery bin 14, the inside of the recovery bin 14 is provided with an abrasive flow sensor 10, the lower side of the recovery bin 14 is provided with a collection box 15, and the lower side of the post-processing bin 12 is provided with a secondary recovery funnel 133 in communication with the recovery bin 14;

[0050] Specifically, during the sandblasting operation in the machine body 1, the used abrasive and impurities peeled off from the surface of the workpiece will naturally fall under the action of gravity, and when the workpiece is transferred to the post-processing bin 12 for high-pressure blowing, a part of the abrasive previously adhered to the complex surface or groove of the workpiece will be blown off, all the falling particles in the post-processing bin 12 will be collected by the secondary recovery funnel 133, when the abrasive flows through the recovery bin 14, it will pass through the abrasive flow sensor 10, the sensor can monitor the abrasive flow per unit time in real time and feed back this key data to the PLC controller 9, providing accurate basis for closed-loop control of the sandblasting process, after being monitored by the sensor, the abrasive finally falls into the collection box 15 below the recovery bin 14, waiting for subsequent screening and reuse.

[0051] Referring to the accompanying drawings Figure 9 A processing process of a sandblasting device, comprising the following steps:

[0052] S1, intelligent analysis and parameter customization: use high-definition camera 19 to collect three-dimensional contour data of the workpiece, PLC controller 9 generates a sandblasting path for cooperative control of angle adjustment structure 5 and machining mechanism 7 according to the contour data, and adaptively matches the process parameter set of the blowing and drying mechanism 13 in the post-processing bin 12;

[0053] Specifically, the operator places the workpiece to be processed on the machining seat 74 of the machining mechanism 7 and closes the sealing door 2. After starting the program, the high-definition camera 19 installed on the inner wall of the machine body 1 scans the workpiece 360° and collects complete three-dimensional contour point cloud data. The data is transmitted to the PLC controller 9 in real time. The intelligent path planning and parameter self-matching module of the PLC controller 9 first analyzes the point cloud data and identifies the geometric features of the workpiece, such as planes, curved surfaces, grooves and holes. Based on these features, the module will automatically generate an optimal cooperative sandblasting path, which includes the rotation speed, angle of the machining mechanism 7 at each stage, and the swing amplitude, frequency of the angle adjustment structure 5 at the corresponding stage and the attitude angle of the sandblasting head 6. At the same time, the module will also adaptively match or generate an optimal post-processing process parameter set from the preset process database according to the structural complexity of the workpiece, such as whether there are deep holes or gaps that are easy to accumulate abrasive. The parameter set clearly defines the air pressure, duration of the subsequent blowing step in the post-processing bin 12 and the temperature, duration of the drying step.

[0054] S2, closed-loop composite motion sandblasting: the PLC controller 9 calls the sandblasting path, controls the machining mechanism 7 to rotate at a speed of 5-10 revolutions per minute, and cooperatively controls the angle adjustment structure 5 to swing at a frequency of 10-60 times per minute, while maintaining the sandblasting pressure at 0.4-0.8 MPa for sandblasting operation, and real-time monitoring of the feedback signal of the abrasive flow sensor 10. The feedback signal of the abrasive flow sensor 10 is monitored in a closed loop, and the PLC controller 9 selectively opens part of the sandblasting head 6 and dynamically adjusts the swing amplitude and frequency of the swing frame 51 according to the sandblasting path. Use abrasive flow sensor 10 to monitor abrasive flow in real time. When the monitoring value deviates from the preset threshold, the PLC controller 9 controls the device to alarm or stop;

[0055] Specifically, after the parameter customization is completed, the PLC controller 9 calls the generated sandblasting path and enters the closed-loop composite motion sandblasting stage. The PLC controller 9 issues an instruction to drive the rotary motor 71 of the machining mechanism 7 to rotate the workpiece at a speed of 5-10 revolutions per minute, while driving the servo motor 52 of the angle adjustment structure 5 to drive the swing frame 51 and the sandblasting head 6 to reciprocate at a frequency of 10-60 times per minute, and control the sandblasting pressure to be maintained at 0.4-0.8 MPa. When processing different areas of the workpiece, the PLC controller 9 dynamically adjusts the swing amplitude of the swing frame 51 according to the sandblasting path, for example, a large swing amplitude is used when processing large planes to improve efficiency, and a small swing amplitude is switched to when processing fine grooves to ensure accuracy. During this whole process, the abrasive flow sensor 10 in the recovery bin 14 continuously feeds back real-time flow data to the PLC controller 9. When the monitoring value deviates from the preset threshold, for example, is lower than 80% of the normal value, the PLC controller 9 determines that the abrasive is clogged or depleted, and immediately triggers an audible and light alarm and suspends the equipment operation, thereby avoiding workpiece scrap caused by abnormal sandblasting, and realizing accurate closed-loop monitoring of sandblasting quality.

[0056] S3, linkage process transfer and self-maintenance: after the sandblasting operation is completed, the PLC controller 9 drives the carrier seat 8 to smoothly move into the post-processing bin 12 from the machine body 1 at a controllable speed of 0.1-0.5 meters per second, and the linkage window self-cleaning mechanism 11 cleans the observation window 3 during this movement;

[0057] Specifically, after the sandblasting operation of the S2 step is completed, the PLC controller 9 automatically enters the linkage process transfer and self-maintenance stage. The PLC controller 9 drives the electric push rod 113 installed on the inner wall of the machine body 1 to extend, and smoothly pushes the entire carrier seat 8 and the workpiece thereon along the slide rail 111 from the sandblasting area of the machine body 1 to the post-processing bin 12 on the right at a controllable speed of 0.1-0.5 meters per second. During the entire travel of the carrier seat 8, the linkage rod 115 fixed to the front end thereof will synchronously drive the cleaning scraper 116 to perform a complete linear scraping and cleaning of the inner surface of the observation window 3 under the constraint of the guide rail 117. This design ingeniously combines the process transfer of the workpiece with the window self-maintenance of the equipment, and automatically completes the cleaning of the observation window without occupying additional production beats, ensuring the continuous clarity of the operation view or visual monitoring system.

[0058] S4, energy continuation and adaptive post-processing: when the carrier seat 8 moves into the post-processing bin 12, it automatically docks with the power contact 114 to continue power supply to the machining mechanism 7, the PLC controller 9 calls the self-adaptive matching process parameter set, and drives the blow-drying mechanism 13 to blow and dry the workpiece.

[0059] Specifically, when the carrier seat 8 is fully inserted into the post-processing chamber 12 and reaches the designated position, the automatic docking power contact 114 on the outer wall thereof is automatically aligned with and reliably contacts the power contact on the inner wall of the post-processing chamber 12, thereby seamlessly connecting the power supply for the rotary motor 71 of the machining mechanism 7. Subsequently, the PLC controller 9 calls the set of process parameters that are self-adaptively matched for the workpiece in the S1 step and drives the blowing and drying mechanism 13 to start working. First, the blowing program is executed, the high-pressure air nozzle 131 blows the continuously rotating workpiece at a set pressure and time length to remove the residual abrasive; then, the drying program is automatically switched to, the hot air generator 132 and the air blower 135 are started, and under the closed-loop feedback control of the temperature sensor 136, the temperature in the chamber is accurately maintained at a set value, and the continuously rotating workpiece is uniformly dried until the program ends. At this point, a complete, fully automatic, and intelligentized sandblasting and post-processing process is completed.

Claims

1. A sandblasting device, comprising a body (1), characterized in that, A sealing door (2) is installed on the front surface of the machine body (1). An observation window (3) and an operation port (4) are installed on the sealing door (2). A support seat (8) is provided inside the machine body (1). A processing mechanism (7) is installed inside the support seat (8). Multiple sandblasting heads (6) are provided inside the machine body (1). An angle adjustment structure (5) is provided on the upper side of the sandblasting head (6). A high-definition camera (19) is installed on the inner wall of the machine body (1). A window self-cleaning mechanism (11) is provided on the front side of the support seat (8). A post-processing chamber (12) is installed on the right side of the machine body (1). A blowing and drying mechanism (13) is provided inside the post-processing chamber (12). A PLC controller (9) is installed on the front surface of the post-processing chamber (12). The PLC controller (9) is configured to perform the following operations: Intelligent path planning and parameter self-matching module: Based on the workpiece contour collected by the high-definition camera (19), the sandblasting path for coordinated motion is generated synchronously, and the optimal blowing and drying process parameters are adaptively matched. Closed-loop sandblasting execution module: Sandblasting is performed according to the sandblasting path, and the sandblasting process is monitored in a closed loop using the real-time feedback of the abrasive flow sensor (10). Linkage transfer and energy continuation control module: After the sandblasting operation is completed, the control carrier (8) moves into the post-processing chamber (12). During the process, the linkage window self-cleaning mechanism (11) works automatically and, after it is in place, it continues to supply energy to the processing mechanism (7) through the power contact (114).

2. The sandblasting device according to claim 1, characterized in that, The processing mechanism (7) includes a rotary motor (71), the output end of which is fixedly connected to a rotating shaft (72), and a turntable (73) is fixedly connected to the upper side of the rotating shaft (72). A processing seat (74) is installed on the upper side of the turntable (73).

3. The sandblasting device according to claim 1, characterized in that, The angle adjustment structure (5) includes a servo motor (52), which is installed on the left surface of the body (1). The output end of the servo motor (52) is fixedly connected to a swing frame (51). The right side of the swing frame (51) is rotatably connected to the inside of the body (1). The swing frame (51) is fixedly connected to the outer wall of the sandblasting head (6).

4. A sandblasting device according to claim 1, characterized in that, The self-cleaning mechanism (11) of the window includes a slide rail (111), which is installed on the inner wall of the body (1) and the post-processing chamber (12). A slider (112) is slidably connected inside the slide rail (111). An electric push rod (113) is installed on the inner wall of the body (1). The telescopic end of the electric push rod (113) is fixedly connected to the support seat (8). A linkage rod (115) is fixedly connected to the front surface of the support seat (8). A cleaning scraper (116) is connected to the other end of the linkage rod (115). A guide block (118) is fixedly connected to the front side of the cleaning scraper (116). A guide rail (117) is fixedly connected to the rear side of the sealing door (2). The guide block (118) is slidably connected inside the guide rail (117).

5. A sandblasting device according to claim 1, characterized in that, The cleaning and drying mechanism (13) includes multiple high-pressure air nozzles (131), which are installed on the inner top of the post-processing chamber (12). An air source pipe (134) is fixedly connected to the upper side of the high-pressure air nozzles (131). A hot air generator (132) and a blower (135) are also installed in the post-processing chamber (12). The air outlet of the blower (135) is connected to the air inlet of the hot air generator (132). A temperature sensor (136) is installed on the inner wall of the post-processing chamber (12).

6. A sandblasting device according to claim 2, characterized in that, A recycling bin (14) is provided on the lower side of the turntable (73). An abrasive flow sensor (10) is provided inside the recycling bin (14). A collection box (15) is provided on the lower side of the recycling bin (14). A secondary recycling funnel (133) is provided on the lower side of the post-processing bin (12). The secondary recycling funnel (133) is connected to the recycling bin (14).

7. A sandblasting device according to claim 2, characterized in that, Automatic docking power contacts (114) are provided on the inner walls of the carrier (8) and the post-processing chamber (12). When the carrier (8) moves into the post-processing chamber (12), the automatic docking power contacts (114) make electrical contact with each other to supply power to the rotary motor (71).

8. A sandblasting device according to claim 1, characterized in that, An electrical control box (16) is installed on the left side of the body (1), and an instrument panel (17) and a pressure sensor (18) are installed on the front side of the body (1).

9. A processing technology for a sandblasting device, applied to a sandblasting device as described in any one of claims 1-8, characterized in that, Includes the following steps: S1. Intelligent analysis and parameter customization: The three-dimensional contour data of the workpiece is collected by the high-definition camera (19). The PLC controller (9) generates the sandblasting path for the coordinated control of the angle adjustment structure (5) and the processing mechanism (7) and the process parameter set for the adaptive matching of the cleaning and drying mechanism (13) in the post-processing chamber (12) based on the contour data. S2, Closed-loop composite motion sandblasting: The PLC controller (9) retrieves the sandblasting path, controls the processing mechanism (7) to rotate at a speed of 5-10 revolutions / minute, and coordinates the control of the angle adjustment structure (5) to swing at a frequency of 10-60 times / minute. At the same time, the sandblasting pressure is maintained at 0.4-0.8MPa for sandblasting operation, and the feedback signal of the abrasive flow sensor (10) is monitored in real time to perform closed-loop monitoring of the sandblasting process; S3, Linkage Process Transfer and Self-Maintenance: After the sandblasting operation is completed, the PLC controller (9) drives the carrier (8) to move smoothly from the machine body (1) into the post-processing chamber (12) at a controllable speed of 0.1-0.5 m / s, and during this movement, the linkage window self-cleaning mechanism (11) cleans the observation window (3); S4, Energy Continuation and Adaptive Post-processing: When the carrier (8) moves into the post-processing chamber (12), the power contact (114) automatically connects to the power supply of the processing mechanism (7), and the PLC controller (9) retrieves the adaptive matching set of process parameters and drives the cleaning and drying mechanism (13) to clean and dry the workpiece.

10. The processing technology of a sandblasting device according to claim 9, characterized in that, The S2 step also includes: the PLC controller (9) selectively opens some sandblasting heads (6) according to the sandblasting path, and dynamically adjusts the swing amplitude and frequency of the swing frame (51), and uses the abrasive flow sensor (10) to monitor the abrasive flow in real time. When the monitored value deviates from the preset threshold, the PLC controller (9) controls the device to alarm or stop.

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