Aviation mold ultrasonic cleaning device and cleaning method

Abstract

The invention discloses an aviation mold ultrasonic cleaning device and cleaning method, and relates to the technical field of mold cleaning, the aviation mold ultrasonic cleaning device comprises a cylinder body, a lifting rack, an ultrasonic cleaning device, a detection device, a drainage device and a controller; a lifting rack for jacking a mold is movably arranged at the bottom in the cylinder body; a plurality of ultrasonic cleaning devices are embedded in the periphery of the inner cavity of the cylinder body and are in direct contact with the cleaning fluid; the detection device comprises a mold detection device and a cleaning liquid detection device, and is used for scanning and identifying a mold and detecting the concentration of dirt dispersed in cleaning liquid; the drainage device is arranged at the bottom of the side wall of the inner cavity of the cylinder body and controls drainage of cleaning fluid in the cylinder. The controller is arranged on the outer wall of the cylinder body and is electrically connected with the detection device; on the premise that the precision of the die is not lost, the complex forming surface and various deep and blind holes of the die can be completely cleaned, and convenience is brought to actual production.

Description

Technical Field

[0001] The invention relates to the technical field of mold cleaning, and in particular to an ultrasonic cleaning device and a cleaning method for an aviation mold. Background Art

[0002] In the aviation industry, there are strict requirements for the cleanliness of molds. The cleanliness of aviation molds is not only related to the service life of the molds, but also directly affects the quality and safety of the products produced by the molds. In order to ensure the cleanliness requirements of the molds, it is necessary to use a cleaning technology that can completely clean the complex molding surfaces of the molds and various deep and blind holes without losing the mold accuracy.

[0003] Ultrasonic cleaning technology uses high-frequency sound waves to act on the cavitation effect of liquids, generating dense and tiny vacuum bubbles in the target liquid for cleaning. After the vacuum bubbles are generated, their volume will grow rapidly and explode, releasing shock waves to the surroundings. When the mold to be cleaned is immersed in the cavitation liquid, the dirt and impurities attached to the mold will be peeled off by the shock waves released by the vacuum bubbles and dispersed in the cavitation liquid, achieving a cleaning effect. In addition, the cavitation effect will also cause the cavitation liquid to stir and move, achieving the cleaning of holes and grooves that are difficult to clean without damaging the mold.

[0004] The current ultrasonic cleaning device cannot monitor and determine whether the mold is clean, and requires manual judgment, with a low degree of automation. In addition, the existing ultrasonic cleaning device does not make full use of the cleaning liquid, and often replaces the cleaning liquid before it becomes ineffective, which is not economical or environmentally friendly. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an ultrasonic cleaning device and a cleaning method for aviation molds, so as to achieve safe and efficient cleaning of large aviation molds.

[0006] The invention discloses an ultrasonic cleaning device for aviation moulds, comprising a cylinder body, a lifting platform, an ultrasonic cleaning device, a detection device, a drainage device and a controller.

[0007] The upper part of the cylinder body is opened, and a lifting platform for lifting the mold is movably arranged at the bottom of the cylinder.

[0008] A plurality of ultrasonic cleaning devices are embedded around the inner cavity of the cylinder body and are in direct contact with the cleaning liquid.

[0009] The detection device includes a mold detection device and a cleaning liquid detection device. The mold detection device is set at the cylinder mouth position, and the mold is scanned and identified when the mold is hoisted.

[0010] Several cleaning liquid detection devices are arranged on the inner wall of the cylinder body. When the mold is cleaned, it directly contacts the cleaning liquid and detects the concentration of dirt dispersed in the cleaning liquid, which serves as a reference point for detecting the dirtiness of the cleaning liquid.

[0011] The drainage device is arranged at the bottom of the side wall of the inner cavity of the cylinder body to control the discharge of the cleaning liquid in the cylinder.

[0012] The controller is arranged on the outer wall of the cylinder body and is electrically connected with the detection device.

[0013] As a further improvement of the present invention, the mold detection device is fixedly arranged at the middle position of the upper opening of the cylinder body, and can continuously emit a mesh infrared beam toward the inside of the cylinder body and receive infrared model characteristics reflected by different surfaces of the mold.

[0014] As a further improvement of the present invention, the cleaning liquid detection device can emit a light beam of a specific wavelength to the cleaning liquid and detect the attenuation degree of the light beam after interacting with dirt in the water.

[0015] As a further improvement of the present invention, a slope is arranged on the bottom surface of the inner cavity of the cylinder body, and the slope is inclined toward one side of the drainage device and gradually becomes lower.

[0016] As a further improvement of the present invention, the drainage device includes a drainage groove, a drainage block and a drainage pipe. The drainage groove is arranged at the junction of the lower side of the slope of the bottom surface of the cylinder body and the side wall, and a movable drainage block is embedded in the groove, which performs limited translational movement in the groove under the drive of the cylinder. The drainage block has a row of horizontal through holes, and the side wall of the cylinder body where it is embedded has a row of corresponding horizontal through holes. During cleaning, the through holes of the drainage block and the through holes of the side wall of the cylinder body are misaligned and not connected. During drainage, the drainage block moves horizontally, and the through holes of the drainage block are aligned and connected with the through holes of the side wall of the cylinder body. A horizontally arranged drainage pipe is arranged behind the through holes of the side wall of the cylinder body, and the tube cavity of the drainage pipe is connected with the through holes of the side wall of the cylinder body.

[0017] As a further improvement of the present invention, a stirring tank is connected behind the drain pipe, and a stirring blade is provided in the stirring tank, which can stir and mix the dirt in the drain pipe cleaning liquid. A cleaning liquid detection device is provided at the outlet of the stirring tank and is electrically connected to the controller.

[0018] As a further improvement of the present invention, a plurality of heating devices are arranged on the surrounding side walls of the cylinder body and are distributed at intervals between the ultrasonic cleaning devices.

[0019] Also disclosed is a cleaning method of an aviation mold ultrasonic cleaning device, which specifically comprises the following steps: a. First, the lifting platform moves upward to a position flush with the upper opening of the cylinder body, and the mold to be cleaned is hoisted and fixed on the lifting platform; b. Then lower the lifting platform to completely accommodate the mold at the bottom of the cylinder cavity. The mold detection device emits an infrared beam to scan the mold surface. The controller identifies and matches the corresponding mold based on the infrared signal reflected by the surface structure characteristics of the mold, and retrieves the reference point position information of the cleaning liquid detection device of the corresponding mold. The corresponding cleaning liquid detection device is calculated and matched as a real-time reference point based on the current position of the mold in the cylinder, and whether the cleaning liquid needs to be replaced is indicated based on the dirtiness of the cleaning liquid detected at the reference point; c. Then, close the drainage device, add cleaning liquid until the mold is submerged, start the ultrasonic cleaning device, and clean the mold; d. During ultrasonic cleaning, the cleaning fluid detection device at the corresponding reference point detects the turbidity of the surrounding cleaning fluid at a certain interval. The controller compares the reference point detection value with the preset standard value. When the detection value reaches the standard, it instructs to open the drainage device to replace the cleaning fluid; e. When the dirtiness of the cleaning fluid at the corresponding reference point no longer increases dynamically and decreases to the same level as the dirtiness of the cleaning fluid at other detection points, the mold cleaning is completed.

[0020] As a further improvement of the present invention, the cleaning liquid detection device that first reaches the failure dirtiness of the cleaning liquid among all the cleaning liquid detection positions is used as a reference point. When the cleaning liquid reaches the failure dirtiness at this point, the cleaning liquid is replaced.

[0021] As a further improvement of the present invention, the cleaning liquid detection device that last reaches the invalid dirtiness of the cleaning liquid among all the cleaning liquid detection positions is used as a reference point. When the cleaning liquid reaches the invalid dirtiness at this point, the cleaning liquid is replaced.

[0022] As a further improvement of the present invention, the method further includes a step of rechecking the degree of dirtiness of the cleaning liquid, wherein part of the cleaning liquid is discharged into a stirring tank, the stirring tank stirs and mixes the dirt in the cleaning liquid and rechecks the degree of dirtiness through a cleaning liquid detection device, and the controller compares the rechecked value with the reference point detection value to obtain a more accurate degree of dirtiness of the cleaning liquid.

[0023] Compared with the prior art, the present invention has the following beneficial effects: 1. The ultrasonic cleaning unit can efficiently clean the dirty parts of the mold without damaging the mold precision.

[0024] Second, through the detection device and controller, it is possible to automatically identify the mold and monitor the degree of mold cleaning in real time, which greatly improves the degree of automation of mold cleaning.

[0025] 3. Different technical effects can be achieved according to the selection of different reference points for the degree of dirtiness of the cleaning liquid. When the cleaning liquid detection device that first reaches the degree of dirtiness at which the cleaning liquid fails among all the cleaning liquid detection positions is selected as the reference point, it can be ensured that the cleaning liquid always maintains the best cleaning effect; when the cleaning liquid detection device that last reaches the degree of dirtiness at which the cleaning liquid fails among all the cleaning liquid detection positions is selected as the reference point, full utilization of the cleaning liquid can be achieved, reducing the waste of the cleaning liquid, which has the advantages of being economical and environmentally friendly.

[0026] Fourth, by using a stirring tank to mix the cleaning liquid and then testing it, the dirtiness of the cleaning liquid can be obtained more accurately, ensuring the accuracy of the cleaning liquid detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the installation of the detection device of the present invention; Figure 3 It is a schematic cross-sectional view of a cylinder body of the present invention; Figure 4 It is a schematic diagram of the drainage device of the present invention; Figure 5 It is a schematic diagram of the state when the drainage block of the present invention blocks the drainage hole; Figure 6 It is a schematic diagram of the state when the drainage block of the present invention is connected to the drainage hole; Figure 7 It is a schematic diagram of a stirring tank of the present invention; Description of the numbers in the figure: 1. Cylinder body; 2. Lifting platform; 3. Ultrasonic cleaning device; 4. Detection device; 5. Drainage device; 6. Controller; 7. Mixing tank; 101. Slope; 401. Mould detection device; 402. Cleaning liquid detection device; 501. Drainage trough; 502. Drainage block; 503. Drain pipe. DETAILED DESCRIPTION

[0028] Specific embodiment 1: Please refer to the attached Figure 1 -Attached Figure 7 , An ultrasonic cleaning device for aviation molds comprises a cylinder body 1, a lifting platform 2, an ultrasonic cleaning device 3, a detection device 4, a drainage device 5 and a controller 6.

[0029] The cylinder body 1 is a rectangular hollow cylinder with an opening at the top. A lifting platform 2 composed of four beams vertically staggered in pairs is set at the bottom of the inner cavity of the cylinder body 1 and driven by four lifting rods to lift and lower in the vertical direction. Ten groups of ultrasonic cleaning devices 3 are embedded in the inner cavity side wall of the cylinder body 1. Each group of ultrasonic cleaning devices 3 has 40 ceramic piezoelectric crystal ultrasonic generators, which are in direct contact with the cleaning liquid in the cylinder body 1. The ceramic piezoelectric crystal ultrasonic generators are powered on and vibrated to produce cavitation in the cleaning liquid to clean the mold. Electric heating pipes for heating are installed on the inner cavity side wall of the cylinder body 1. The electric heating pipes are embedded in the cylinder wall between the two groups of ultrasonic cleaning devices 3 at intervals, and the temperature of the cleaning liquid can be controlled to meet the relevant cleaning process requirements.

[0030] The detection device 4 includes a mold detection device 401 and a cleaning liquid detection device 402, both of which are electrically connected to the controller.

[0031] The mold detection device 401 is an infrared ray generating receiver, which is fixedly arranged in the middle of the upper opening of the cylinder body 1, and can continuously emit a mesh infrared beam toward the mold in the cylinder body 1 and receive infrared model characteristics reflected by different mold surfaces. The controller 6 processes the infrared signal reflected by the mold surface structure characteristics received by the infrared ray generating receiver to identify and match the corresponding mold and retrieve the reference point position information of the cleaning liquid detection device 402 of the corresponding mold. The corresponding cleaning liquid detection device 402 is calculated and matched as a real-time reference point through the current position of the mold in the cylinder, and indicates whether the cleaning liquid needs to be replaced according to the dirtiness of the cleaning liquid detected at the reference point; There are two groups of cleaning liquid detection devices 402, which are respectively arranged at the upper and lower parts of the cylinder. Each group includes a number of water quality optical detectors, which are evenly spaced around the inner wall of the cylinder body 1. The water quality optical detector can emit a light beam of a specific wavelength to the cleaning liquid, and detect the attenuation of the light beam after the light beam interacts with the dirt in the water. The higher the dirtiness, the greater the attenuation. The controller 6 calculates the dirtiness of the cleaning liquid by detecting the different attenuation degrees of the light beam.

[0032] The bottom surface of the cylinder body 1 is provided with a slope 101, and a drainage groove 501 is provided at the edge of the bottom. The slope 101 is inclined toward the drainage groove 501 and gradually becomes lower to guide the drainage. The drainage groove 501 has a row of evenly spaced through holes toward the outside of the cylinder wall for drainage, and is blocked by installing a drainage block 502 in the groove. The drainage block 502 has transverse through holes with the same spacing as the drainage groove 501, and can move horizontally along the groove. When the positions of the transverse holes of the two correspond, the drainage is connected; when the transverse holes of the two are staggered, the drainage is blocked and the drainage is stopped. The transverse holes of the drainage groove 501 that pass through the side wall are connected to the drainage pipe 503 on the outside of the cylinder wall. The drainage groove 501, the drainage block 502 and the drainage pipe 503 together constitute the drainage device 5, and the drainage block 502 is driven by a cylinder to achieve horizontal movement.

[0033] Cleaning method: a. First, the lifting platform 2 moves upward to a position flush with the upper opening of the cylinder body 1, and the mold to be cleaned is hoisted and fixed on the lifting platform 2; b. Then, the lifting platform 2 is lowered to completely accommodate the mold at the bottom of the inner cavity of the cylinder body 1. The infrared generating receiver emits an infrared beam to scan the mold surface. The controller 6 processes the infrared signal reflected by the mold surface structure characteristics received by the infrared generating receiver to identify and match the corresponding mold and retrieve the reference point position information of the water quality optical detector of the corresponding mold. The corresponding water quality optical detector is calculated and matched as a real-time reference point according to the current position of the mold in the cylinder, and whether the cleaning liquid needs to be replaced is indicated according to the dirtiness of the cleaning liquid detected at the reference point; c. Then, the drainage device 5 is closed, the cleaning liquid is added until the mold is covered, and the ceramic piezoelectric crystal ultrasonic generator is started to generate cavitation in the cleaning liquid to clean the mold; d. During ultrasonic cleaning, the water quality optical detector corresponding to the reference point detects the turbidity of the surrounding cleaning liquid every 1 minute, and the controller 6 compares the reference point detection value with the preset standard value. When the detection value reaches the standard, it instructs to open the drainage device 5 to replace the cleaning liquid; e. When the dirtiness of the cleaning fluid at the corresponding reference point no longer increases dynamically and decreases to the same level as the dirtiness of the cleaning fluid at other detection points, the mold cleaning is completed.

[0034] Principle of selecting reference point for cleaning fluid dirtiness: To ensure the best cleaning effect of the cleaning fluid, the water quality optical detector that first reaches the failure dirtiness of the cleaning fluid among all cleaning fluid detection positions is used as the reference point. When the cleaning fluid at this point reaches the failure dirtiness, the cleaning fluid is replaced. This can ensure that all cleaning fluids in the cylinder have cleaning power at all times.

[0035] Alternatively, to ensure the economy and environmental friendliness of cleaning, the water quality optical detector that last reaches the failure dirtiness of the cleaning fluid among all cleaning fluid detection positions is used as a reference point. When the cleaning fluid reaches the failure dirtiness at this point, the cleaning fluid is replaced. This can ensure that the cleaning fluid in the tank is fully utilized and is only replaced after it completely loses its cleaning power.

[0036] Specific embodiment 2: On the basis of specific embodiment 1, a stirring tank 7 is installed behind the drain pipe 503, a stirring blade is provided in the center of the stirring tank 7, and it is driven to rotate by a motor, and a water quality optical detector is provided at the outlet of the stirring tank 7. When selecting the detection mode that makes full use of the cleaning liquid, in order to ensure the accurate detection of the dirtiness of the cleaning liquid, part of the cleaning liquid is introduced from the drain pipe 503 into the stirring tank 7, the cleaning liquid is stirred and mixed by the stirring blade, and then the dirtiness of the stirred and mixed cleaning liquid is re-checked by the water quality optical detector at the outlet of the stirring tank to obtain a more accurate detection value, and the controller 6 compares the re-checked value with the reference point detection value to ensure that the cleaning liquid is replaced after it is completely ineffective.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to be limiting. All variations, modifications, and substitutions within the spirit and principle of the design are within the protection scope of the present invention.

Claims

1. An ultrasonic cleaning device for aviation molds, characterized in that: It comprises a cylinder body (1), a lifting platform (2), an ultrasonic cleaning device (3), a detection device (4), a drainage device (5) and a controller (6); The cylinder body (1) has an opening at the top, and a lifting platform (2) for lifting the mold is movably arranged at the bottom of the cylinder; A plurality of ultrasonic cleaning devices (3) are embedded around the inner cavity of the cylinder body (1) and are in direct contact with the cleaning liquid; The detection device (4) comprises a mold detection device (401) and a cleaning liquid detection device (402); the mold detection device (401) is arranged at the cylinder mouth position, and scans and identifies the mold when the mold is hoisted; A plurality of cleaning liquid detection devices (402) are arranged on the inner wall of the cylinder (1). When the mold is cleaned, the mold is in direct contact with the cleaning liquid. The concentration of dirt dispersed in the cleaning liquid is detected at equal time intervals to serve as a detection reference point for the degree of dirtiness of the cleaning liquid. The drainage device (5) is arranged at the bottom of the side wall of the inner cavity of the cylinder body (1) to control the discharge of the cleaning liquid in the cylinder; The controller (6) is arranged on the outer wall of the cylinder body (1) and is electrically connected to the detection device (4).

2. The ultrasonic cleaning device for aviation mold according to claim 1, characterized in that: The mold detection device (401) is fixedly arranged at the middle position of the upper opening of the cylinder body (1), and is capable of continuously emitting a mesh infrared beam in the direction of the mold inside the cylinder body (1) and receiving infrared model characteristics reflected by different mold surfaces.

3. The ultrasonic cleaning device for aviation mold according to claim 1, characterized in that: The cleaning liquid detection device (402) is capable of emitting a light beam of a specific wavelength to the cleaning liquid and detecting the degree of attenuation of the light beam after interacting with dirt in the water.

4. The ultrasonic cleaning device for aviation mold according to claim 1, characterized in that: The bottom surface of the inner cavity of the cylinder body (1) is provided with a slope (101), which slopes toward one side of the drainage device (5) and gradually becomes lower.

5. The ultrasonic cleaning device for aviation mold according to claim 4, characterized in that: The drainage device (5) comprises a drainage groove (501), a drainage block (502) and a drainage pipe (503); A drainage groove (501) is provided at the junction of the lower side of the slope of the bottom surface of the cylinder body (1) and the side wall, and a movable drainage block (502) is embedded in the groove and performs limited translational movement in the groove under the drive of the cylinder; the drainage block (502) is provided with a row of horizontal through holes, and the side wall of the cylinder body (1) where it is embedded is provided with a row of corresponding horizontal through holes; during cleaning, the through holes of the drainage block (502) and the through holes of the side wall of the cylinder body (1) are misaligned and not connected; during drainage, the drainage block (502) moves horizontally, and the through holes of the drainage block (502) are aligned and connected with the through holes of the side wall of the cylinder body (1); a horizontally arranged drainage pipe (503) is provided behind the through holes of the side wall of the cylinder body (1), and the pipe cavity of the drainage pipe (503) is connected with the through holes of the side wall of the cylinder body (1).

6. The ultrasonic cleaning device for aviation mold according to claim 5, characterized in that: A stirring tank (7) is connected behind the drain pipe (503), and stirring blades are provided in the stirring tank (7) so as to stir and mix the dirt in the cleaning liquid of the drain pipe (503); a cleaning liquid detection device (402) is provided at the outlet of the stirring tank (7) and is electrically connected to the controller (6).

7. A cleaning method for an aviation mold ultrasonic cleaning device, characterized in that: An ultrasonic cleaning device for aviation molds according to any one of claims 1 to 6 is applicable, comprising the following steps: a. First, the lifting platform (2) moves upward to a position flush with the upper opening of the cylinder body (1), and the mold to be cleaned is hoisted and fixed on the lifting platform (2); b. Then, the lifting platform (2) is lowered to completely accommodate the mold in the bottom of the inner cavity of the cylinder body (1). The mold detection device (401) emits an infrared beam to scan the surface of the mold. The controller (6) identifies and matches the corresponding mold according to the infrared signal reflected by the surface structural characteristics of the mold, and retrieves the reference point position information of the cleaning liquid detection device (402) of the corresponding mold. The corresponding cleaning liquid detection device (402) is matched as a real-time reference point based on the current position of the mold in the cylinder, and indicates whether the cleaning liquid needs to be replaced according to the dirtiness of the cleaning liquid detected at the reference point; c. Then, close the drainage device (5), add cleaning liquid until the mold is covered, and start the ultrasonic cleaning device (3) to clean the mold; d. During ultrasonic cleaning, the cleaning liquid detection device (402) corresponding to the reference point detects the turbidity of the surrounding cleaning liquid at a certain interval, and the controller (6) compares the reference point detection value with a preset standard value. When the detection value reaches the standard, it instructs the drainage device (5) to open and replace the cleaning liquid; e. When the dirtiness of the cleaning fluid at the corresponding reference point no longer increases dynamically and decreases to the same level as the dirtiness of the cleaning fluid at other detection points, the mold cleaning is completed.

8. The cleaning method of an aviation mold ultrasonic cleaning device according to claim 7, characterized in that: The cleaning liquid detection device (402) that first reaches the failure dirtiness of the cleaning liquid among all the cleaning liquid detection positions is used as a reference point. When the cleaning liquid reaches the failure dirtiness at this point, the cleaning liquid is replaced.

9. The cleaning method of an aviation mold ultrasonic cleaning device according to claim 7, characterized in that: The cleaning liquid detection device (402) that last reaches the invalid dirtiness of the cleaning liquid among all the cleaning liquid detection positions is used as a reference point. When the cleaning liquid reaches the invalid dirtiness at this point, the cleaning liquid is replaced.

10. The cleaning method of an aviation mold ultrasonic cleaning device according to claim 9, characterized in that: The method also includes a step of rechecking the degree of dirtiness of the cleaning liquid, wherein part of the cleaning liquid is discharged into a stirring tank (7), the stirring tank (7) stirs and mixes the dirt in the cleaning liquid and rechecks the degree of dirtiness through a cleaning liquid detection device (402), and the controller (6) compares the rechecked value with the reference point detection value to obtain a more accurate degree of dirtiness of the cleaning liquid.

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