Ultrasonic vibration device for cleaning precision disc parts and cleaning method

Abstract

The invention discloses an ultrasonic vibration device for cleaning precise disc parts, and belongs to the field of machine manufacturing. Comprising an ultrasonic vibration rod a (1), an ultrasonic vibration rod b (2), an ultrasonic vibration rod c (3), an ultrasonic vibration rod d (4), a cleaning device shell (7), four signal transmission cables (8) and a power controller (9). According to the characteristics of different precision disc parts, the power controller (9) is used for setting and adjusting the magnitude and power distribution of the output power of the ultrasonic vibration device, the amplitude of ultrasonic waves output by the vibration rods at the same moment is different, meanwhile, the amplitude of the ultrasonic waves output by each vibration rod circularly changes in a reciprocating mode, standing waves are prevented from being formed, and the precision of the disc parts is improved. And uniform ultrasonic impact on the precise disc parts in all directions is guaranteed, and uniform cleaning of all parts of the parts is achieved.

Description

Technical Field

[0001] The present invention discloses an ultrasonic vibration device and a cleaning method for cleaning precision disk parts, and belongs to the field of mechanical manufacturing. The vibration rods at different positions in the cleaning liquid at the same time are set to different powers, so that different vibration rods emit different ultrasonic amplitudes, thereby preventing the formation of standing waves, ensuring that the precision disk parts in the cleaning liquid are subjected to ultrasonic vibration shock in real time, strengthening the cleaning effect of the parts, and reducing the energy consumption of the parts cleaning. Background Art

[0002] Ultrasonic vibration cleaning is a major cleaning process for precision disc parts. Usually, several ultrasonic vibrators with the same power are placed in the cleaning liquid. The vibrators continuously emit ultrasonic waves to achieve the effect of vibration cleaning on the parts. However, the ultrasonic vibrators currently used in production sites usually have the same power, resulting in two columns of ultrasonic waves with the same amplitude and frequency propagating in opposite directions between the vibrators. The two columns of ultrasonic waves are superimposed to form standing waves. The waveform and energy of the standing waves will not propagate in a directional manner, which will greatly affect the energy transfer during the parts cleaning process and fail to achieve the expected cleaning effect. This will cause a significant decline in part performance and pose a huge risk to the safety of part operation. Summary of the invention

[0003] In order to solve the problems that the ultrasonic cleaning effect of precision disk parts is poor, which seriously affects the performance and operation safety of parts, the purpose of the present invention is to provide an ultrasonic vibration device for cleaning precision disk parts. The vibration rods at different positions in the cleaning liquid at the same time are set to different powers, so that different vibration rods emit different ultrasonic amplitudes to prevent the formation of standing waves, ensure that the precision disk parts in the cleaning liquid are subjected to ultrasonic vibration shock in real time, enhance the cleaning effect of parts, and reduce the energy consumption of parts cleaning.

[0004] In order to achieve the above objectives, the present invention adopts the following technical scheme: an ultrasonic vibration device for cleaning aircraft parts, comprising an ultrasonic vibration rod a1, an ultrasonic vibration rod b2, an ultrasonic vibration rod c3, an ultrasonic vibration rod d4, a cleaning device shell 7, four signal transmission cables 8, and a power controller 9; the ultrasonic vibration rod a1, the ultrasonic vibration rod b2, the ultrasonic vibration rod c3, and the ultrasonic vibration rod d4 are in four holes of the cleaning device shell 7, and the four signal transmission cables 8 are respectively connected to the ultrasonic vibration rod a1, the ultrasonic vibration rod b2, the ultrasonic vibration rod c3, and the ultrasonic vibration rod d4, and then connected to the power controller 9.

[0005] The four holes of the cleaning device housing 7 are evenly distributed and are in a square shape.

[0006] The ultrasonic vibration rods a1, b2, c3 and d4 are interference fit with the cleaning device housing 7 and are sealed.

[0007] The ultrasonic vibration rod a1, the ultrasonic vibration rod b2, the ultrasonic vibration rod c3, and the ultrasonic vibration rod d4 are made of the same material and have the same size.

[0008] A cleaning method for an ultrasonic vibration device for cleaning aircraft parts, after adding cleaning liquid into a cleaning device housing 7, a precision disk-like part 6 is placed into the ultrasonic vibration device through a parts cleaning basket 5, and ultrasonic vibration rods a1, b2, c3, and d4 receive ultrasonic waves emitted by a power controller 9 through a signal transmission cable 8, and the vibration amplitudes at the same time are different, and the vibration amplitudes of the ultrasonic vibration rods a1, b2, c3, and d4 increase uniformly by 10%, and the vibration amplitudes vary between 70% and 100% of the maximum amplitude, and the ultrasonic amplitude output by each ultrasonic vibration rod increases uniformly by 10% every 5-10 minutes, and the cycle is repeated, and the vibration time is 1 to 2 hours.

[0009] The ultrasonic vibration rods a1, b2, c3 and d4 are made of the same material and have the same size, and have a natural vibration frequency of 20 to 30 KHZ.

[0010] The cleaning fluid needs to exceed the height of the parts during the cleaning process.

[0011] The parts cleaning basket 5 and the cleaning device housing 7 are made of 304 stainless steel.

[0012] The power controller 9 sends electrical signals with a rated power of 2KW to the four signal transmission cables 8 respectively.

[0013] Through the above technical solution conceived by the present invention, compared with the prior art, the present invention has the following advantages:

[0014] 1) The ultrasonic vibrator emits different amplitudes at the same time to prevent the formation of standing waves, increase the impact energy of ultrasonic waves on parts, enhance the cleaning effect of parts, and improve the performance and operation safety of parts.

[0015] 2) The vibration power and distribution of each ultrasonic vibrator are adjustable, and the ultrasonic amplitude will also change with the adjustment of the power. The ultrasonic cleaning parameters can be adjusted according to the characteristics of different parts to achieve the cleaning of different precision disk parts.

[0016] 3) While the ultrasonic vibration rods of the ultrasonic vibration device output different ultrasonic amplitudes at the same time, the ultrasonic amplitude output by each vibration rod changes cyclically, which not only prevents the formation of standing waves, but also ensures uniform ultrasonic impact on precision disk parts in all directions, thereby achieving uniform cleaning of all parts of the parts.

[0017] 4) This device eliminates the influence of standing waves on parts cleaning, improves the efficiency of ultrasonic cleaning, and can significantly reduce cleaning energy consumption.

[0018] 5) This device significantly improves the cleaning effect. Compared with traditional ultrasonic cleaning, it reduces the manual scrubbing process after ultrasonic cleaning, greatly saving labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the overall schematic diagram of the ultrasonic vibration device

[0020] Figure 2 This is a schematic diagram of the internal structure of the ultrasonic vibration device.

[0021] Figure 3 This is the schematic diagram of the operation of the ultrasonic vibration device

[0022] Among them: 1. Ultrasonic vibration rod a; 2. Ultrasonic vibration rod b; 3. Ultrasonic vibration rod c; 4. Ultrasonic vibration rod d; 5. Parts cleaning basket; 6. Precision disk parts; 7. Cleaning device housing; 8. Signal transmission cable; 9. Power controller. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings. The specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0024] The overall schematic diagram of the ultrasonic vibration device is as follows Figure 1 , Figure 2 As shown, an ultrasonic vibration device for cleaning aircraft parts includes an ultrasonic vibration rod a1, an ultrasonic vibration rod b2, an ultrasonic vibration rod c3, an ultrasonic vibration rod d4, a cleaning device housing 7, four signal transmission cables 8, and a power controller 9; the ultrasonic vibration rod a1, the ultrasonic vibration rod b2, the ultrasonic vibration rod c3, and the ultrasonic vibration rod d4 are in four holes of the cleaning device housing 7, and the ultrasonic vibration rod a1, the ultrasonic vibration rod b2, the ultrasonic vibration rod c3, and the ultrasonic vibration rod d4 are interference-fitted and sealed with the cleaning device housing 7. The four holes of the cleaning device housing 7 are evenly distributed and square. The four signal transmission cables 8 are respectively connected to the ultrasonic vibration rod a1, the ultrasonic vibration rod b2, the ultrasonic vibration rod c3, and the ultrasonic vibration rod d4, and then connected to the power controller 9.

[0025] The ultrasonic vibration rod a1, the ultrasonic vibration rod b2, the ultrasonic vibration rod c3 and the ultrasonic vibration rod d4 are made of the same material and have the same size.

[0026] A cleaning method for an ultrasonic vibration device for cleaning aircraft parts, after adding cleaning liquid into a cleaning device housing 7, a precision disk-like part 6 is placed into the ultrasonic vibration device through a parts cleaning basket 5, and ultrasonic vibration rods a1, b2, c3, and d4 receive ultrasonic waves emitted by a power controller 9 through a signal transmission cable 8, and the vibration amplitudes at the same time are different, and the vibration amplitudes of the ultrasonic vibration rods a1, b2, c3, and d4 increase uniformly by 10%, and the vibration amplitudes vary between 70% and 100% of the maximum amplitude, and the ultrasonic amplitude output by each ultrasonic vibration rod increases uniformly by 10% every 5-10 minutes, and the cycle is repeated, and the vibration time is 1 to 2 hours.

[0027] The ultrasonic vibration rods a1, b2, c3 and d4 are made of the same material and have the same size, and have a natural vibration frequency of 20 to 30 KHZ.

[0028] The cleaning fluid needs to exceed the height of the parts during the cleaning process.

[0029] The parts cleaning basket 5 and the cleaning device housing 7 are made of 304 stainless steel, which can effectively prevent corrosion from ultrasonic cleaning fluid.

[0030] The power controller 9 can send electrical signals with a rated power of 2KW to the four signal transmission cables 8 respectively.

[0031] According to the characteristics of different precision disk parts, the power controller 9 is used to set and adjust the output power and power distribution of the ultrasonic vibration rod of the ultrasonic vibration device. The electrical signal sent by the power controller 9 is transmitted to the ultrasonic vibration rod through the signal transmission cable 8. The internal structure of the ultrasonic vibration device is shown in FIG. Figure 2 As shown, after receiving the electrical signal from the power controller 9, the ultrasonic vibrator a1, ultrasonic vibrator b2, ultrasonic vibrator c3, and ultrasonic vibrator d4 emit ultrasonic waves with different vibration amplitudes. While the four vibrators output different ultrasonic amplitudes at the same time, the ultrasonic amplitude output by each vibrator changes repeatedly, which not only prevents the formation of standing waves, but also ensures uniform ultrasonic impact on precision disk parts in all directions, thereby achieving uniform cleaning of all parts of the parts. The operation of the ultrasonic vibration device is shown in the figure below. Figure 3 As shown, after the cleaning liquid exceeding the height of the precision disk parts 6 is added into the cleaning device shell 7, the precision disk parts 6 are placed into the ultrasonic vibration device through the parts cleaning basket 5. Since the vibration amplitudes of the ultrasonic waves between the vibration rods are different, the conditions for forming standing waves are no longer met in the ultrasonic cleaning device.

[0032] The use principle of the present invention is as follows:

[0033] According to the characteristics of different precision disk parts, a power controller 9 is used to set and adjust the output power and power distribution of the ultrasonic vibration device. The electrical signal emitted by the power controller 9 is transmitted to the ultrasonic vibration rods a1, b2, c3 and d4 through the signal transmission cable 8. The ultrasonic vibration rods emit ultrasonic waves with different vibration amplitudes. Since the vibration amplitudes of the ultrasonic waves between the vibration rods are different, the cleaning device no longer has the conditions for forming standing waves. For traditional ultrasonic vibration devices, the output power of the four ultrasonic vibration rods is the same at any time, and the ultrasonic amplitudes generated by the vibration rods are all A values. After every two ultrasonic waves propagating in opposite directions meet, a superposition effect occurs, and the ultrasonic wave dynamic equation is changed from the standing wave equation to:

[0034]

[0035] In formula (1), A is the amplitude of the ultrasonic wave, x is the distance between the ultrasonic particle and the wave source, λ is the wavelength of the ultrasonic wave, ν is the vibration frequency of the ultrasonic wave, and t is the propagation time of the ultrasonic wave.

[0036] Since the two ultrasonic waves propagating in opposite directions form a standing wave after superposition, the impact energy cannot be propagated in a directional manner, which will seriously affect the cleaning effect of the ultrasonic vibration device on precision disk parts. In the present invention, the ultrasonic amplitudes emitted by the four ultrasonic vibration rods at any time are inconsistent. The amplitudes of the two ultrasonic waves propagating in opposite directions change from A value to B value and C value respectively. Since the amplitudes of the two ultrasonic waves are different, no standing wave will be formed after superposition. The generated ultrasonic wave dynamic equation is:

[0037]

[0038] In formula (2), B is the ultrasonic amplitude emitted by a certain ultrasonic vibrating rod, and C is the ultrasonic amplitude emitted by another ultrasonic vibrating rod.

[0039] At this time, since the standing wave is eliminated in the ultrasonic vibration device, the energy of the ultrasonic wave begins to propagate in a directional manner. The average energy flux density emitted by the ultrasonic vibration rod can be calculated by formula (3):

[0040]

[0041] In formula (3), u is the wave velocity of ultrasound in the cleaning liquid; ω is the angular frequency of ultrasound; and ρ is the density of the cleaning liquid.

[0042] As the energy of the ultrasonic wave begins to propagate in a direction, the propagation energy of the ultrasonic wave increases significantly. While the four vibrating rods output ultrasonic waves of different amplitudes at the same time, the ultrasonic amplitude output by each vibrating rod changes repeatedly, which not only prevents the formation of standing waves, but also ensures uniform ultrasonic impact on precision disk parts in all directions, realizes uniform cleaning of all parts of the parts, greatly improves the efficiency and effect of ultrasonic cleaning, reduces cleaning energy consumption, and saves labor costs.

Claims

1. An ultrasonic vibration device for cleaning aircraft parts, characterized in that: The invention comprises an ultrasonic vibration rod a (1), an ultrasonic vibration rod b (2), an ultrasonic vibration rod c (3), an ultrasonic vibration rod d (4), a cleaning device housing (7), four signal transmission cables (8), and a power controller (9); the ultrasonic vibration rod a (1), the ultrasonic vibration rod b (2), the ultrasonic vibration rod c (3), and the ultrasonic vibration rod d (4) are in four holes of the cleaning device housing (7); the four signal transmission cables (8) are respectively connected to the ultrasonic vibration rod a (1), the ultrasonic vibration rod b (2), the ultrasonic vibration rod c (3), and the ultrasonic vibration rod d (4), and then connected to the power controller (9).

2. The ultrasonic vibration device for cleaning aircraft parts according to claim 1, characterized in that: The four holes of the cleaning device housing (7) are evenly distributed and are in a square shape.

3. The ultrasonic vibration device for cleaning aircraft parts according to claim 1, characterized in that: The ultrasonic vibration rod a (1), the ultrasonic vibration rod b (2), the ultrasonic vibration rod c (3), and the ultrasonic vibration rod d (4) are interference-fitted with the cleaning device housing (7) and sealed.

4. The ultrasonic vibration device for cleaning aircraft parts according to claim 1, characterized in that: The ultrasonic vibration rod a (1), ultrasonic vibration rod b (2), ultrasonic vibration rod c (3), and ultrasonic vibration rod d (4) are made of the same material and have the same size.

5. The cleaning method of the ultrasonic vibration device for cleaning aircraft parts according to any one of claims 1 to 4, characterized in that: After adding cleaning liquid into the cleaning device shell (7), the precision disk parts (6) are placed into the ultrasonic vibration device through the parts cleaning basket (5). The ultrasonic vibration rods a (1), b (2), c (3) and d (4) receive the ultrasonic waves emitted by the power controller (9) through the signal transmission cable (8). The vibration amplitudes at the same time are different. The vibration amplitudes of the ultrasonic vibration rods a (1), b (2), c (3) and d (4) increase uniformly by 10%, and the vibration amplitudes vary between 70% and 100% of the maximum amplitude. Every 5 to 10 minutes, the ultrasonic amplitude output by each ultrasonic vibration rod increases uniformly by 10%, and the cycle is repeated. The vibration time is 1 to 2 hours.

6. The cleaning method of the ultrasonic vibration device for cleaning aircraft parts according to claim 5, characterized in that: The ultrasonic vibration rod a (1), ultrasonic vibration rod b (2), ultrasonic vibration rod c (3), and ultrasonic vibration rod d (4) are made of the same material and have the same size, and have a natural vibration frequency of 20 to 30 KHZ.

7. The cleaning method of the ultrasonic vibration device for cleaning aircraft parts according to claim 5, characterized in that: The cleaning fluid needs to exceed the height of the parts during the cleaning process.

8. The cleaning method of the ultrasonic vibration device for cleaning aircraft parts according to claim 5, characterized in that: The parts cleaning basket (5) and the cleaning device housing (7) are made of 304 stainless steel.

9. The cleaning method of the ultrasonic vibration device for cleaning aircraft parts according to claim 5, characterized in that: The power controller (9) sends electrical signals with a rated power of 2KW to the four signal transmission cables (8) respectively.

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