Manufacturing method, system and terminal of a mechanical intermittent motion valve

Abstract

The application relates to a manufacturing method, system and terminal of a mechanical intermittent motion valve, belongs to the field of mechanical manufacturing, and comprises the following steps: acquiring an internal gas path image of a moving valve in the intermittent motion valve; generating a gas path channel model according to the internal gas path image; comparing and analyzing the gas path channel model with a preset reference model to determine burr characteristics and burr characteristic positions; determining the burr diameter of each burr characteristic according to the gas path channel model and the burr characteristic positions; comparing each burr characteristic to determine the burr characteristic with the maximum burr diameter, and determining the maximum burr diameter; matching the shock wave intensity of a preset high-pressure air release device according to the maximum burr diameter; controlling the high-pressure air release device to release an air shock wave to the gas path channel of the intermittent motion valve according to the shock wave intensity so as to break and blow out the burr characteristics from the intermittent motion valve; and the application has the effect of improving the burr removal efficiency of the mechanical intermittent motion valve.

Description

Technical Field

[0001] This invention relates to the field of mechanical manufacturing, and in particular to a method, system and terminal for manufacturing a mechanical intermittent motion valve. Background Technology

[0002] A mechanical intermittent motion valve is a special type of mechanical valve that combines the functional characteristics of an intermittent motion mechanism and a mechanical valve, enabling it to open and close periodically or at predetermined time intervals.

[0003] Mechanical intermittent motion valves mainly consist of a moving valve driven by a motor and a fixed stationary valve. The moving valve has an air passage for high-pressure airflow, and the stationary valve also has an air passage. When the motor drives the moving valve to rotate on the surface of the stationary valve, the moving valve opens when the air passages of the two valves are connected.

[0004] Mechanical intermittent motion valves are commonly used for intermittent control of pneumatic motors, such as in automotive windshield wipers. These valves typically have metal bodies, and after casting, burrs may remain in the air passages. During operation, these burrs can be carried by the high-pressure airflow into the pneumatic motor, potentially causing malfunctions. Therefore, it is necessary to remove these burrs. In most factories, burr removal is done manually, with workers using metal brushes to clean the air passages. This process is inefficient and incomplete, leaving some burrs in the air passages, which needs improvement. Summary of the Invention

[0005] To improve the efficiency of burr removal in mechanical intermittent motion valves, this invention provides a manufacturing method, system, and terminal for mechanical intermittent motion valves.

[0006] In a first aspect, the present invention provides a method for manufacturing a mechanical intermittent motion valve, employing the following technical solution: A method for manufacturing a mechanical intermittent motion valve, comprising: Obtain an image of the internal air path of the moving valve in the intermittent motion valve; Generate an airflow channel model based on the internal airflow image; The gas path model is compared and analyzed with the preset benchmark model to determine the burr characteristics and their locations. The diameter of each burr feature is determined based on the air passage model and the location of the burr features. Compare each burr feature to determine the burr feature with the largest burr diameter, and determine the maximum burr diameter. The shock wave intensity of the high-pressure air release device is matched according to the maximum burr diameter. The high-pressure air release device is controlled to release air shock waves into the air passage of the intermittent motion valve according to the intensity of the shock wave, so as to break the burr features and blow them out of the intermittent motion valve.

[0007] By adopting the above technical solution, a high-pressure air shock wave is released into the air passage of the motion valve. The shock wave breaks the burr features in the air passage, and after breaking them, the airflow blows the burr features out of the motion valve, thereby achieving the effect of removing burr features. The above method of removing burrs from the motion valve is highly efficient.

[0008] Optionally, the shock wave intensity may attenuate as it propagates within the air passage. Therefore, it is necessary to correct the shock wave intensity of the high-pressure air released by the high-pressure air release device. Shock wave intensity correction methods include: Based on the air passage model and burr characteristics, determine the blocking surface area of ​​each burr feature, and determine the total blocking area of ​​all burr features. Based on the air passage model and the location of the burr features, determine the influence distance of the burr feature with the largest blocking surface area from the air passage inlet, as well as the distal burr diameter of the burr feature farthest from the air passage inlet. The area of ​​blockage for all burr features within the air passageway that affects the distance is determined based on the distance of influence. The regional attenuation of the shock wave is determined based on the regional blocking area, and the sum of the regional attenuation and the shock wave intensity is defined as the regional shock wave intensity. The intensity of the distal shock wave is determined by matching the distal burr diameter to the burr feature furthest from the gas passage inlet. The far-end attenuation of the shock wave is determined based on the total blocking area, and the sum of the far-end attenuation and the shock wave intensity is defined as the penetrating shock wave intensity. Based on the fact that the intensity of the regional shock wave is greater than that of the penetrating shock wave, the intensity of the regional shock wave is used as the corrected shock wave intensity and the corrected shock wave intensity is output. Based on the premise that the intensity of the regional shock wave is no greater than the intensity of the penetrating shock wave, the intensity of the penetrating shock wave is used as the modified shock wave intensity and the modified shock wave intensity is output.

[0009] Optionally, shock wave intensity correction methods also include: Determine the total length of the gas path based on the gas path model; Determine the bend characteristics and total bend angle of the gas path based on the gas path channel model; The friction attenuation is determined based on the total length of the gas passage and the preset passage friction coefficient; The total bending attenuation is determined based on the total bending angle. The final shock wave intensity is determined based on the modified shock wave intensity, frictional attenuation, and total bending attenuation.

[0010] Optionally, if the burr feature, after being blown off, falls into the gap between the moving and stationary valves in the intermittent motion valve, causing the gap to widen and resulting in air leakage, the methods for handling the burr feature in the gap include: The intermittent motion valve is rotated at a preset centrifugal speed. After a preset centrifugation time, acquire image information of the gap at the connection between the dynamic valve and the static valve in the air passage. The gap width between the moving valve and the stationary valve is determined based on the gap image information, and the location of the maximum gap width is determined based on the gap width. The location of concentrated burr features is determined based on the location of the maximum gap width. The shortest removal path is determined based on the location of concentrated burr features and the location of the preset air passage. The preset magnetic force intensity controls the preset magnetic attraction device to attract the burr features at the location where the burr features are concentrated and pull them to the air passage position according to the shortest removal path.

[0011] Optionally, if the burr feature scratches the contact surface between the moving valve and the stationary valve, the surface repair methods for the gap include: Obtain the contact surface image information; The location and path of the scratches are determined based on the image information of the contact surface and the preset scratch features. Determine whether the two overlap based on the scratch path and the location of the air passage; A scratch feature is defined as penetrating the air passage if and only if the scratch path coincides with the location of the air passage, and the filling volume is determined based on the contact surface image information and the scratch feature. Based on the fact that the filling volume is smaller than the preset baseline restoration volume, the filling volume of the corresponding burr feature is matched according to the filling volume. The melting temperature is determined based on the filling volume, the preset burr material, and the preset material feature library; Select the burr feature to fill the volume and melt the burr feature at the melting temperature before injecting it into the scratch location.

[0012] Optional, also includes: Based on the principle that the filling volume is not less than the baseline restoration volume, the location of the penetration is determined according to the scratch path and the location of the air passage. The location of the interception point within the scratch path is determined based on the location of the penetration, the preset interception distance, and the scratch path. The preset interception device at the interception point position controls the cut path to form an outlet filling groove between the interception point position and the penetration position; After melting the burr features at the melting temperature, the melt is injected into the outlet filler groove to cut off the scratch path at the penetration point.

[0013] Optionally, the burr features are collected after being blown out of the air passage by the shock wave. Burr collection methods include: Obtain the weighing value of the intermittent motion valve; The burr weight value is determined based on the weighed weight value and the preset reference weight value; The magnetic force of the magnetic attraction device preset at the outlet of the gas passage is matched according to the intensity of the shock wave. The magnetic attraction device is controlled by the magnetic force intensity to collect the burr features of the blown air passage. After a preset impact time, the weight of the burrs collected on the magnetic attraction device is obtained. Based on the discrepancy between the burr collection weight and the burr weight value, the shock wave intensity of the high-pressure air release device is increased by a preset enhancement amount, and the adsorption magnetic force intensity is corrected simultaneously.

[0014] Optionally, the formula for calculating the shock wave intensity correction is: P = P0 + μ1 * P0 * S 总 / (S) 道 *ρ*c)+k1*a*P0+k2*μ2*L*P0; Where P is the corrected shock wave intensity, P0 is the shock wave intensity, μ1 is the energy loss coefficient, and S 总 S represents the total blocking area of ​​all burr features. 道 Let ρ be the cross-sectional area of ​​the air passage, ρ be the air density, c be the propagation speed of the shock wave in the air, k1 bend attenuation coefficient, a bend angle, k2 bend attenuation coefficient, μ2 bend friction coefficient, and L be the total length of the air passage.

[0015] Secondly, this application provides a manufacturing system for a mechanical intermittent motion valve, which adopts the following technical solution: A manufacturing system for a mechanical intermittent motion valve, comprising: The acquisition module is used to acquire internal air path images, gap image information, contact surface image information, weighing weight value, and burr collection weight. A memory for storing the program for manufacturing any of the above-mentioned mechanical intermittent motion valves; The processor and the program in the memory can be loaded and executed by the processor to realize a method for manufacturing a mechanical intermittent motion valve.

[0016] Thirdly, this application provides a smart terminal, which adopts the following technical solution: A smart terminal includes a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and executed the manufacturing method of any of the above-mentioned mechanical intermittent motion valves.

[0017] In summary, this application includes at least one of the following beneficial technical effects: A method for manufacturing a mechanical intermittent motion valve involves releasing a high-pressure air shock wave into the air passage of the motion valve. The shock wave breaks off burrs in the air passage, and after breaking them off, the airflow blows the burrs out of the motion valve, thereby achieving the effect of removing burrs. The above method has a high efficiency in removing burrs from the motion valve. By first centrifugally rotating the moving valve to concentrate the burrs between the moving and stationary valves, and then using a magnetic attraction device to attract the burrs and guide them to move along the shortest distance to the air passage, the burrs between the moving and stationary valves are removed. This method does not require disassembling and cleaning the moving valve and is highly efficient. When scratches or grooves appear on the contact surface between the moving valve and the stationary valve, the system performs targeted treatment based on the volume of the scratch characteristics. If the scratch is small, it is repaired by directly filling the scratch with molten burrs. If the scratch is large, it is repaired by filling and sealing a small area at the connection between the scratch and the air passage with molten burrs to improve airtightness. The above methods are highly efficient. Attached Figure Description

[0018] Figure 1 This is a flowchart of a method for manufacturing a mechanical intermittent motion valve according to an embodiment of the present invention; Figure 2 This is a method flow chart of the shock wave intensity correction method according to an embodiment of the present invention. Figure 1 ; Figure 3 This is a method flow chart of the shock wave intensity correction method according to an embodiment of the present invention. Figure 2 ; Figure 4 This is a flowchart of a method for processing burr features in gaps according to an embodiment of the present invention; Figure 5 This is a method flow chart of the crevice surface repair method according to an embodiment of the present invention. Figure 1 ; Figure 6 This is a method flow chart of the crevice surface repair method according to an embodiment of the present invention. Figure 2 ; Figure 7 This is a flowchart of the burr collection method according to an embodiment of the present invention. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0020] This application discloses a method for manufacturing a mechanical intermittent motion valve. A shock wave is released into the air passage of the motion valve via a high-pressure air release device to break off burrs in the air passage. A magnetic suction device removes the burrs that have fallen into the moving and stationary valves, and finally, the burrs are collected. After burr removal, scratches caused by the burrs are repaired to ensure airtightness.

[0021] Reference Figure 1 A method for manufacturing a mechanical intermittent motion valve includes the following steps: Step S100: Obtain an image of the internal air path of the moving valve in the intermittent motion valve.

[0022] Internal air path images refer to images within the air path passage of an intermittent motion valve. These images are acquired using a miniature probe, which extends into the air path passage and moves along the passage and a preset trajectory while simultaneously capturing images. If the air path passage has burr-like features, these features will appear in the internal air path image.

[0023] Step S101: Generate an airway channel model based on the internal airway image.

[0024] The gas path model refers to a three-dimensional spatial model of the gas path. The distances between various points on the inner wall of the gas path and the microprobe can be analyzed through image recognition in the internal gas path image. Therefore, by importing the internal gas path image into a preset two-dimensional to three-dimensional image database for processing, the gas path model can be obtained. The two-dimensional to three-dimensional image database is a tool database known to those skilled in the art and will not be described in detail here.

[0025] Step S102: Compare and analyze the gas path model with the preset benchmark model to determine the burr characteristics and burr location.

[0026] A baseline model refers to a reference model of the gas path obtained by technicians in advance by inspecting the motion valve after it has been processed and there are no burrs in the gas path. The baseline model has no burr features.

[0027] The location of the burr feature refers to the position of the burr feature in the air passage.

[0028] By comparing the gas path model with the baseline model, the difference between the two is the burr feature. Once the burr feature is determined, the actual burr feature position in the moving valve can be determined based on the position of the burr feature in the gas path model.

[0029] Step S103: Determine the burr diameter of each burr feature based on the air passage model and the burr feature location.

[0030] Once all the burr characteristics in the gas path are determined, the system can analyze each burr specifically and determine the burr diameter corresponding to each burr from the gas path model.

[0031] Step S104: Compare each burr feature to determine the burr feature with the largest burr diameter, and determine the maximum burr diameter.

[0032] The maximum burr diameter refers to the diameter of the burr feature with the largest diameter among all burr features. In this embodiment, the maximum burr diameter can be used as a parameter for controlling the high-pressure air release device.

[0033] Step S105: Match the preset shock wave intensity of the high-pressure air release device according to the maximum burr diameter.

[0034] Shock wave intensity refers to the impact intensity of the gas released by the high-pressure air release device. Shock wave intensity is directly proportional to the maximum burr diameter; the larger the maximum burr diameter, the greater the shock wave intensity. When a burr feature with the maximum burr diameter can be broken by high-pressure air with a shock wave intensity, other burr features with smaller diameters can also be broken.

[0035] Step S106: Control the high-pressure air release device to release air shock waves into the air passage of the intermittent motion valve according to the intensity of the shock wave, so as to break the burr feature and blow it out of the intermittent motion valve.

[0036] Once the intensity of the shock wave is determined, the high-pressure air release device is controlled to release high-pressure gas at the inlet of the air passage of the moving valve. When the high-pressure gas passes through the air passage, it can break off and discharge the burrs in the air passage.

[0037] Reference Figure 2 The intensity of the shock wave attenuates as it propagates within the air passage. Therefore, it is necessary to correct the shock wave intensity of the high-pressure air released by the high-pressure air release device so that the high-pressure air can break off all the burr features. The shock wave intensity correction method includes the following steps: Step S200: Determine the blocking surface area of ​​each burr feature based on the air passage model and burr features, and determine the total blocking area of ​​all burr features.

[0038] The obstruction surface area refers to the area of ​​the projected surface of the burr feature facing the inlet of the air passage. The obstruction surface area can be directly obtained from the system's air passage model.

[0039] The total blocking area is the sum of the blocking surface areas of all burr features.

[0040] Step S201: Based on the air passage model and the location of the burr features, determine the influence distance of the burr feature with the largest blocking surface area from the air passage inlet, and the distal burr diameter of the burr feature farthest from the air passage inlet.

[0041] Once the blocking surface area of ​​all burr features is determined, the system can filter out the burr feature with the largest blocking surface area and determine the position of the burr feature in the air passage, thereby determining the distance of the burr feature from the air passage inlet, which is the influence distance.

[0042] The distal burr diameter refers to the diameter of the burr feature furthest from the air passage. The system can directly determine the burr feature furthest from the air passage model, thereby directly obtaining its burr diameter.

[0043] Step S202: Determine the area of ​​blockage of all burr features within the air passage of the influence distance based on the influence distance.

[0044] The area of ​​obstruction refers to the total area of ​​the obstructing surface of burr features within the length range of the influence distance in the air passage.

[0045] Once the influence distance is determined, the system can identify all burr features within the influence distance range based on the airflow channel model, and sum the blocking surface areas of all burr features to obtain the regional blocking area.

[0046] Step S203: Determine the regional attenuation of the shock wave based on the regional blocking area, and calculate the sum of the regional attenuation and the shock wave intensity as the regional shock wave intensity.

[0047] When high-pressure gas passes through the gas path, the burr features impede the shock wave, thus reducing its intensity. The amount by which the shock wave is attenuated due to the burr features is called the area attenuation. This area attenuation is the amount of attenuation the shock wave receives after passing through the gas path that affects its distance. The area attenuation is directly proportional to the area of ​​the obstruction; the larger the area of ​​the obstruction, the greater the area attenuation.

[0048] Regional shock wave intensity refers to the intensity after correction of the shock wave intensity. It is the sum of regional attenuation and the shock wave intensity. When a high-pressure air release device releases a shock wave with regional shock wave intensity, after passing through all burr features within the affected distance, the burr feature with the largest burr diameter located at the affected distance can be broken off.

[0049] Step S204: Match the intensity of the distal shock wave that breaks the burr feature furthest from the gas passage inlet according to the distal burr diameter.

[0050] The intensity of the distal shock wave refers to the intensity of the shock wave that can break the burr feature furthest from the air passage. The intensity of the distal shock wave is directly proportional to the diameter of the distal burr; the larger the diameter of the distal burr, the greater the intensity of the distal shock wave.

[0051] Step S205: Determine the far-end attenuation of the shock wave based on the total blocking area, and calculate the sum of the far-end attenuation and the shock wave intensity as the penetrating shock wave intensity.

[0052] The distal attenuation is the amount of attenuation caused by the burr features blocking the shock wave as it passes through the entire air passage. The distal attenuation is related to and proportional to the total blocking area of ​​all burr features within the air passage; the larger the total blocking area, the greater the distal attenuation.

[0053] The penetrating shock wave intensity refers to the intensity after correcting for the shock wave intensity. It is the sum of the far-end attenuation and the shock wave intensity. When a high-pressure air release device releases a shock wave with penetrating shock wave intensity, after passing through all the burr features, the burr feature furthest from the air passage can be broken.

[0054] Step S2061: Based on the fact that the regional shock wave intensity is greater than the penetrating shock wave intensity, the regional shock wave intensity is used as the corrected shock wave intensity and the corrected shock wave intensity is output.

[0055] The intensity of the regional shock wave and the intensity of the penetrating shock wave are compared to determine whether to use the regional shock wave intensity or the penetrating shock wave intensity as the final shock wave intensity. The modified shock wave intensity is the final shock wave intensity used to control the high-pressure air release device. Releasing the shock wave with the modified shock wave intensity can break through all burr features in the air passage.

[0056] When the intensity of the regional shock wave is greater than that of the penetrating shock wave, the shock wave of the penetrating shock wave intensity cannot break the burr feature with the maximum burr diameter located at the influence distance. Therefore, the intensity of the regional shock wave is used as the final corrected shock wave intensity.

[0057] Step S2062: Based on the fact that the regional shock wave intensity is not greater than the penetrating shock wave intensity, the penetrating shock wave intensity is used as the corrected shock wave intensity and the corrected shock wave intensity is output.

[0058] When the intensity of the regional shock wave is not greater than that of the penetrating shock wave, the shock wave of the regional shock wave intensity cannot break the burr feature farthest from the gas passage inlet. Therefore, the intensity of the penetrating shock wave is used as the final corrected shock wave intensity.

[0059] Reference Figure 3When the shock wave passes through the air passage, it is also attenuated by the inner wall of the air passage and the bends. Therefore, the influence of the inner wall and bends of the air passage must also be considered. The shock wave intensity correction method also includes the following steps: Step S300: Determine the total length of the gas path based on the gas path model.

[0060] The total length of the air passage refers to the total length of the air passage in the moving valve, which can be directly analyzed from the air passage model.

[0061] Step S301: Determine the bend characteristics and total bend angle of the gas path based on the gas path channel model.

[0062] The bend characteristics of the air path refer to the bend locations in the air path channel. The total bend angle refers to the sum of the angles of all bend locations in the air path channel. The bend characteristics and bend angles of the air path can be directly analyzed from the air path channel model, and finally, the bend angles of all the bend characteristics are added together to obtain the total bend angle.

[0063] The shock wave weakens to a certain extent after passing through each bend in the air path, and this weakening is related to the bend angle of the air path bend. Therefore, the total bend angle of all air path bends needs to be determined.

[0064] Step S302: Determine the friction attenuation amount based on the total length of the gas passage and the preset passage friction coefficient.

[0065] The coefficient of friction of the air passage is a standard parameter obtained by technicians through prior testing of the inner wall of the air passage, and will not be elaborated here.

[0066] Frictional attenuation is the energy attenuated by the shock wave as it moves through the air passage and rubs against the inner wall of the passage. Frictional attenuation is directly proportional to the product of the total length of the air passage and the coefficient of friction of the passage; the larger the product of the total length of the air passage and the coefficient of friction of the passage, the greater the frictional attenuation.

[0067] Step S303: Determine the total bending attenuation based on the total bending angle.

[0068] The total attenuation due to bends is the energy attenuated by the shock wave after passing through all the bends in the air path. The total attenuation due to bends is proportional to the total bend angle; the larger the total bend angle, the greater the total attenuation due to bends.

[0069] Step S304: Determine the final shock wave intensity based on the corrected shock wave intensity, friction attenuation, and total bending attenuation.

[0070] The final shock wave intensity is the shock wave intensity obtained by taking into account all factors that cause energy attenuation of the shock wave. The final shock wave intensity is the sum of the corrected shock wave intensity, frictional attenuation, and total bending attenuation.

[0071] Reference Figure 4 If the burr is broken off and falls into the gap between the moving and stationary valves in the intermittent motion valve, it can cause the gap to widen and leak air. The method for handling the burr in the gap includes the following steps: Step S400: Control the intermittent motion valve to rotate at a preset centrifugal speed.

[0072] The centrifugal speed is the rotational speed set by the technician to drive the intermittent motion valve to rotate circumferentially. When the motion valve rotates at the centrifugal speed, the burrs in the gap can be thrown to the edge and concentrated together during the rotation process, which will not be elaborated here.

[0073] Step S401: After a preset centrifugation time, acquire the gap image information at the connection between the dynamic valve and the static valve in the air passage.

[0074] The centrifugation time is the time set by the technician for the intermittent motion valve to rotate, which will not be elaborated here.

[0075] The gap image information is obtained by taking pictures of the gap at the connection between the moving valve and the stationary valve in the air passage through a miniature probe. The miniature probe is placed inside the air passage to take pictures of the circumferential gap.

[0076] Step S402: Determine the gap width between the moving valve and the stationary valve based on the gap image information, and determine the position of the maximum gap width based on the gap width.

[0077] The gap width refers to the distance between the moving valve and the stationary valve at the connection point in the air passage. The gap width can be obtained by analyzing gap image information using image recognition methods. When there are burrs between the moving and stationary valves, these burrs widen the gap, resulting in an uneven circumferential gap width. Therefore, once the circumferential gap width between the moving and stationary valves is determined, it can be analyzed and identified to pinpoint the location of the maximum gap width.

[0078] Step S403: Determine the location of concentrated burr features based on the location of the maximum gap width.

[0079] The location of burr feature concentration refers to the position of the burr feature between the moving valve and the stationary valve after centrifugal concentration.

[0080] The reason for the location of the maximum gap width is that there are burr features on the extension line of the line connecting the location of the maximum gap width and the center of the air passage. Therefore, the location of the maximum gap width is raised. Based on the above principle, the location of the burr feature concentration can be determined by the location of the maximum gap width.

[0081] Step S404: Determine the shortest removal path based on the location of the concentrated burr features and the preset air passage location.

[0082] The position of the air passage refers to the location of the air passage at the connection between the moving valve and the stationary valve within the moving valve, which will not be elaborated here.

[0083] The shortest removal path refers to the shortest distance traveled to move a burr feature from its concentrated location to the airflow channel location. The shortest removal path is the line connecting the concentrated burr feature location and the airflow channel location.

[0084] Step S405: Control the preset magnetic attraction device with preset magnetic force intensity to attract the burr features at the burr feature concentration location and pull them to the air passage position according to the shortest removal path.

[0085] Directly emptying the burr feature from the driven valve and stationary valve is not easy to operate and cannot be cleaned properly. In this embodiment, since the burr feature is made of ferrous metal, a magnetic attraction device is set around the driven valve to generate a magnetic field that can attract the burr feature, thereby guiding the movement of the burr feature and pulling it to the air passage position along the shortest path.

[0086] The magnetic strength refers to the strength of the magnetic force after the magnetic attraction device, set by the technician, pulls the burr feature. When the magnetic field is of magnetic strength, it can attract the burr feature, which will not be elaborated here.

[0087] Reference Figure 5 The burr feature indicates that the contact surface between the moving valve and the stationary valve is scratched. The surface repair method for the gap includes the following steps: Step S500: Obtain the contact surface image information.

[0088] The contact surface image information is an image of the contact surface between the moving valve and the stationary valve, acquired through a camera. After the burr features are removed, the moving valve is tested. If leakage is found, the moving valve and the stationary valve are disassembled, and then the contact surface between the two is image-recognized.

[0089] Step S501: Determine the scratch location and scratch path based on the contact surface image information and the preset scratch features.

[0090] The scratch location refers to the position of the scratch feature on the contact surface between the moving and stationary valves, while the scratch path refers to the shape trajectory of the scratch feature. By performing image recognition analysis on the scratch features in the contact surface image information, the scratch location and scratch path can be determined.

[0091] Step S502: Determine whether the scratch path and the air passage position overlap.

[0092] By determining whether the scratch path and the gas passage location overlap, it can be determined whether the scratch extends into the gas passage. If it does, air leakage will occur prematurely when the gas passages between the moving and stationary valves are not connected. If it does not extend into the gas passage, there will be no impact. The handling method is determined based on whether the two overlap.

[0093] Step S503: If the scratch path coincides with the position of the air passage, it is defined as a scratch feature penetrating the air passage. The filling volume is determined based on the contact surface image information and the scratch feature.

[0094] Repair is required when the scratch path coincides with the gas passage, i.e., the scratch feature penetrates the gas passage. The filling volume refers to the volume of the depression caused by the scratch feature on the contact surface between the moving valve and the stationary valve. The filling volume can be determined by image recognition analysis of the scratch feature from the contact surface image information.

[0095] Step S504: Based on the fact that the filling volume is less than the preset baseline restoration volume, match the filling volume of the corresponding burr feature according to the filling volume.

[0096] By analyzing the size of the fill volume, different repair methods are adopted for scratch characteristics of different fill volumes.

[0097] The baseline restoration volume is a parameter set by technicians to measure whether scratch features need to be completely filled and repaired, and will not be elaborated here.

[0098] When the filling volume is not less than the baseline restoration volume, it indicates that the scratch is large. In this case, it is not necessary to completely fill and repair it. The specific repair method will not be described in detail here, but will be introduced in detail in subsequent embodiments.

[0099] When the filling volume is smaller than the baseline restoration volume, it indicates that the scratch feature is small. In this case, the scratch feature can be directly and completely filled and repaired.

[0100] In this embodiment, the burrs broken off within the air passage are recovered and melted for use in repairing scratches. The filling volume refers to the volume of the burrs used to repair the scratches. The filling volume corresponds one-to-one with the filling capacity.

[0101] Step S505: Determine the melting temperature based on the filling volume, the preset burr material, and the preset material feature library.

[0102] Melting temperature refers to the temperature required to melt a burr feature. By inputting the fill volume and burr material into a material feature library, the required melting temperature for the corresponding fill volume of the burr can be determined. The material feature library is a standard database set by engineers, which contains the correspondence between fill volume, burr material, and melting temperature.

[0103] Step S506: Select the burr feature to fill the volume and melt the burr feature at the melting temperature before injecting it into the scratch position.

[0104] After determining the melting temperature, the system selects appropriate burr features and melts them using the melting temperature, finally injecting them into the scratch location.

[0105] Reference Figure 6 The surface repair method for cracks also includes the following steps: Step S600: Based on the filling volume not being less than the baseline restoration volume, determine the location of the penetration according to the scratch path and the location of the air passage.

[0106] When the filling volume is not less than the baseline restoration volume, it is not necessary to completely fill and repair the scratch feature due to its large size. In this embodiment, the repair can be performed at the connection between the scratch feature and the air passage. The penetration location refers to the connection between the scratch feature and the air passage, which is located at the edge of the air passage. By analyzing the scratch path and the air passage location, the point where they overlap is the penetration location.

[0107] Step S601: Determine the location of the interception point within the scratch path based on the location of the penetration, the preset interception distance, and the scratch path.

[0108] The interception distance is the distance set by the technicians to allow the melted burr features to flow through and be filled. It also serves as a reference for setting up interception devices, and will not be elaborated upon here.

[0109] The interception point is the location where an interception device is set on the scratch path to prevent the molten burr feature from flowing through. The interception point location can be determined based on the penetration location and the interception distance. The interception point location is the position when the interception distance is moved along the scratch path from the penetration location.

[0110] Step S602: At the interception point, control the preset interception device to cut off the scratch path to form an outlet filling groove between the interception point and the penetration point.

[0111] When an interception device is set at the interception point, an outlet filling groove is formed between the interception point and the penetration point. By injecting the molten burr feature into the outlet filling groove, the connection between the scratch feature and the air passage can be switched, so that air does not leak out from the penetration point when it enters the scratch feature.

[0112] Step S603: After melting the burr feature at the melting temperature, inject it into the outlet filler groove to cut off the scratch path at the through-hole position.

[0113] Similar to step S506, after melting the burr feature, the melted burr feature is injected into the outlet filling groove. At this time, after the melted burr feature cools and hardens, it can block the connection between the scratch feature and the gas passage.

[0114] Reference Figure 7 The burr features are collected after being blown out of the air passage by the shock wave. The burr collection method includes the following steps: Step S700: Obtain the weighing value of the intermittent motion valve.

[0115] The weighing value is the weight obtained by weighing the intermittent motion valve using a weighing device before the burr features are removed.

[0116] Step S701: Determine the burr weight value based on the weighed weight value and the preset reference weight value.

[0117] The reference weight value is the standard weight parameter of the intermittent motion valve. The weight measured at this time is the weight of the motion valve without internal burr features.

[0118] The burr weight value refers to the weight of the burr features inside the moving valve to be tested. The weighing weight value can be determined by calculating the difference between the weighing weight value and the reference weight value.

[0119] Step S702: Match the magnetic attraction strength of the magnetic attraction device preset at the outlet of the gas passage according to the intensity of the shock wave.

[0120] In this embodiment, by setting a magnetic attraction device at the outlet of the air passage, the magnetic attraction device can attract the burr features of the blown air moving valve and collect them.

[0121] The magnetic attraction strength is the magnetic force provided by the magnetic attraction device when it attracts the burr feature. The magnetic attraction strength is proportional to the shock wave strength. The greater the shock wave strength, the greater the magnetic attraction strength, so that when the burr feature is pushed out of the motion valve by the shock wave, it can be attracted by the magnetic attraction device and is not easily blown away.

[0122] Step S703: The magnetic attraction device is controlled by the magnetic attraction force to collect the burr features of the blown air passage. After a preset impact time, the weight of the burrs collected on the magnetic attraction device is obtained.

[0123] The impact time is the time set by the technician for the shock wave to impact the burr characteristics and remove the burr, which will not be elaborated here.

[0124] The burr collection weight refers to the weight of the burr feature collected by the magnetic attraction device after it is ejected from the motion valve by the shock wave. The magnetic attraction device is equipped with a pressure sensor, which can measure the burr collection weight.

[0125] Step S704: Based on the inconsistency between the burr collection weight and the burr weight value, the shock wave intensity of the high-pressure air release device is increased by a preset enhancement amount, and the adsorption magnetic force intensity is corrected simultaneously.

[0126] When the collected burr weight matches the burr weight value, it indicates that the burrs inside the motion valve have been completely removed and collected by the magnetic suction device. When the collected burr weight does not match the burr weight value, it indicates that there are still burr-like features remaining inside the motion valve, possibly due to insufficient shock wave intensity. In this case, the shock wave intensity should be increased. The enhancement amount is the amount set by the technician to increase and correct the shock wave intensity when it is insufficient, and will not be elaborated here.

[0127] The formula for calculating the shock wave intensity correction is as follows: P = P0 + μ1 * P0 * S 总 / (S) 道 *ρ*c)+k1*a*P0+k2*μ2*L*P0; Where P is the corrected shock wave intensity, P0 is the shock wave intensity, μ1 is the energy loss coefficient, and S 总 S represents the total blocking area of ​​all burr features. 道 Let ρ be the cross-sectional area of ​​the air passage, ρ be the air density, c be the propagation speed of the shock wave in the air, k1 bend attenuation coefficient, a bend angle, k2 bend attenuation coefficient, μ2 bend friction coefficient, and L be the total length of the air passage.

[0128] There are three factors that cause shock wave intensity attenuation. First, burrs in the air passageway can obstruct the shock wave. Second, bends in the air passageway can impede the shock wave. Third, friction between the shock wave and the inner wall of the air passageway attenuates the shock wave intensity. When correcting the shock wave intensity, these three factors must be considered, and the attenuation amount should be increased based on the initial shock wave intensity to achieve the correction.

[0129] Based on the same inventive concept, embodiments of the present invention provide a manufacturing system for a mechanical intermittent motion valve, comprising: The acquisition module is used to acquire internal air path images, gap images, contact surface images, weighing values, and burr collection weights.

[0130] A memory for storing a program for manufacturing a mechanical intermittent motion valve.

[0131] The processor and the program in the memory can be loaded and executed by the processor to realize a method for manufacturing a mechanical intermittent motion valve.

[0132] Based on the same inventive concept, embodiments of the present invention provide a smart terminal, including a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and executed to manufacture a mechanical intermittent motion valve.

[0133] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A method of manufacturing a mechanical intermittent motion valve, characterized by, include: Obtain an image of the internal air path of the moving valve in the intermittent motion valve; Generate an airflow channel model based on the internal airflow image; The gas path model is compared and analyzed with the preset benchmark model to determine the burr characteristics and their locations. The diameter of each burr feature is determined based on the air passage model and the location of the burr features. Compare each burr feature to determine the burr feature with the largest burr diameter, and determine the maximum burr diameter. The shock wave intensity of the high-pressure air release device is matched according to the maximum burr diameter. The high-pressure air release device is controlled to release air shock waves into the air passage of the intermittent motion valve according to the intensity of the shock wave, so as to break the burr features and blow them out of the intermittent motion valve. The intensity of the shock wave attenuates as it propagates within the air passageway. Therefore, it is necessary to correct the shock wave intensity of the high-pressure air released by the high-pressure air release device. Shock wave intensity correction methods include: Based on the air passage model and burr characteristics, determine the blocking surface area of ​​each burr feature, and determine the total blocking area of ​​all burr features. Based on the air passage model and the location of the burr features, determine the influence distance of the burr feature with the largest blocking surface area from the air passage inlet, as well as the distal burr diameter of the burr feature farthest from the air passage inlet. The area of ​​blockage for all burr features within the air passageway that affects the distance is determined based on the distance of influence. The regional attenuation of the shock wave is determined based on the regional blocking area, and the sum of the regional attenuation and the shock wave intensity is defined as the regional shock wave intensity. The intensity of the distal shock wave is determined by matching the distal burr diameter to the burr feature furthest from the gas passage inlet. The far-end attenuation of the shock wave is determined based on the total blocking area, and the sum of the far-end attenuation and the shock wave intensity is defined as the penetrating shock wave intensity. Since the intensity of the regional shock wave is greater than that of the penetrating shock wave, the intensity of the regional shock wave is used as the corrected shock wave intensity and the corrected shock wave intensity is output. Based on the premise that the intensity of the regional shock wave is no greater than the intensity of the penetrating shock wave, the intensity of the penetrating shock wave is used as the modified shock wave intensity and the modified shock wave intensity is output.

2. The method of claim 1, wherein the mechanical intermittent motion valve is a valve for an internal combustion engine. Shock wave intensity correction methods also include: Determine the total length of the gas path based on the gas path model; Determine the bend characteristics and total bend angle of the gas path based on the gas path channel model; The friction attenuation is determined based on the total length of the gas passage and the preset passage friction coefficient; The total bending attenuation is determined based on the total bending angle. The final shock wave intensity is determined based on the modified shock wave intensity, frictional attenuation, and total bending attenuation.

3. The method of claim 1, wherein the mechanical intermittent motion valve is manufactured by the steps of: After the burr is broken off, it may fall into the gap between the moving and stationary valves in the intermittent motion valve, causing the gap to widen and leak air. Methods for handling the burr in the gap include: The intermittent motion valve is rotated at a preset centrifugal speed. After a preset centrifugation time, acquire image information of the gap at the connection between the dynamic valve and the static valve in the air passage. The gap width between the moving valve and the stationary valve is determined based on the gap image information, and the location of the maximum gap width is determined based on the gap width. The location of concentrated burr features is determined based on the location of the maximum gap width. The shortest removal path is determined based on the location of concentrated burr features and the location of the preset air passage. The preset magnetic force intensity controls the preset magnetic attraction device to attract the burr features at the location where the burr features are concentrated and pull them to the air passage position according to the shortest removal path.

4. The method of claim 3, wherein the mechanical intermittent motion valve is manufactured by the steps of: Burr marks can scratch the contact surface between the moving and stationary valves. Methods for repairing these gaps include: Obtain the contact surface image information; The location and path of the scratches are determined based on the image information of the contact surface and the preset scratch features. Determine whether the two overlap based on the scratch path and the location of the air passage; A scratch feature is defined as penetrating the air passage if and only if the scratch path coincides with the location of the air passage, and the filling volume is determined based on the contact surface image information and the scratch feature. Based on the fact that the filling volume is smaller than the preset baseline restoration volume, the filling volume of the corresponding burr feature is matched according to the filling volume. The melting temperature is determined based on the filling volume, the preset burr material, and the preset material feature library; Select the burr feature to fill the volume and melt the burr feature at the melting temperature before injecting it into the scratch location.

5. The method of claim 4, wherein the mechanical intermittent motion valve is manufactured by the steps of: Also includes: Based on the principle that the filling volume is not less than the baseline restoration volume, the location of the penetration is determined according to the scratch path and the location of the air passage. The location of the interception point within the scratch path is determined based on the location of the penetration, the preset interception distance, and the scratch path. The preset interception device at the interception point position controls the cut path to form an outlet filling groove between the interception point position and the penetration position; After melting the burr features at the melting temperature, the melt is injected into the outlet filler groove to cut off the scratch path at the penetration point.

6. The method of claim 1, wherein the mechanical intermittent motion valve is manufactured by the steps of: Burr features are collected after being blown out of the air passage by the shock wave. Burr collection methods include: Obtain the weighing value of the intermittent motion valve; The burr weight value is determined based on the weighed weight value and the preset reference weight value; The magnetic force of the magnetic attraction device pre-set at the outlet of the gas passage is matched according to the intensity of the shock wave. The magnetic attraction device is controlled by the magnetic force intensity to collect the burr features of the blown air passage. After a preset impact time, the weight of the burrs collected on the magnetic attraction device is obtained. Based on the discrepancy between the burr collection weight and the burr weight value, the shock wave intensity of the high-pressure air release device is increased by a preset enhancement amount, and the adsorption magnetic force intensity is corrected simultaneously.

7. The method of claim 2, wherein the mechanical intermittent motion valve is manufactured by the steps of: The formula for calculating the shock wave intensity correction is as follows: P = P0 + μ1 * P0 * S 总 / (S 道 * ρ * c) + k1 * a * P0 + k2 * μ2 * L * P0; where P is the modified shockwave intensity, P0 is the shockwave intensity, μ1 is the energy loss coefficient, S 总 is the total blocking area of all burr features, S 道 is the cross-sectional area of the air path channel, p is the air density, c is the shockwave propagation speed in air, k1 is the bending attenuation coefficient, a is the total bending angle, k2 is the channel attenuation coefficient, μ2 is the channel friction coefficient, and L is the total length of the air path channel.

8. A manufacturing system of a mechanical intermittent motion valve, characterized by, include: The acquisition module is used to acquire internal air path images, gap image information, contact surface image information, weighing weight value, and burr collection weight. A memory for storing a program for manufacturing a mechanical intermittent motion valve as described in any one of claims 1 to 7; The processor and the program in the memory can be loaded and executed by the processor to realize a method for manufacturing a mechanical intermittent motion valve.

9. A smart terminal, characterized by It includes a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and executed as described in any one of claims 1 to 7 for manufacturing a mechanical intermittent motion valve.

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