Miniature threaded blind hole machining redundancy cleaning device and cleaning method

Abstract

The invention provides a miniature threaded blind hole machining redundancy cleaning device and method.The device is mainly composed of a main machine box, an electric control cabinet, a visual positioning device, a liquid filtering device, a part clamping tool, a jet cleaning device and a position running device.A to-be-cleaned part is installed and fastened in the main machine box through the part clamping tool; threaded holes of all parts to be cleaned are recognized and positioned through the visual positioning device, the position operating device drives the jet cleaning device to conduct high-pressure cleaning on the miniature threaded blind holes to be cleaned one by one till all the parts are cleaned, and cleaning liquid passes through the recycling and filtering device in the cleaning process. The liquid can be reused after solid particles are adsorbed and filtered (the filtering precision is greater than or equal to 20 microns). According to the cleaning method, by controlling and adjusting the injection pressure and matching the size of the threaded blind hole, residual redundant materials in the hole after machining can be cleaned, the part cleaning efficiency is greatly improved, and the operation process is easy and convenient to operate.

Description

Technical Field

[0001] The invention belongs to the technical field of parts cleaning in a production process, and specifically relates to a device and a method for cleaning excess materials produced during processing of a micro-threaded blind hole. Background Art

[0002] The dynamically tuned gyroscope is a precision inertial sensor, a device that measures the relative inertial spatial position or velocity of a carrier. Its function is to sense the motion posture and trajectory of the carrier. Because it requires the motor to drive the gyro rotor to produce a gyro effect through high-speed operation, the stable operation of the motor is the basic condition for the normal operation of the product. During the product assembly process, the balance screws on the motor rotor are adjusted to meet the motor dynamic balance requirements, and the threaded holes on the motor rotor parts are cleaned and cleaned. Not only to ensure that the balance screws can be installed in place, but also to ensure that no excess objects fall into the threaded holes during the operation of the product, causing abnormal operation of the motor. Therefore, the cleaning of the motor rotor threaded holes is particularly important.

[0003] The difficulty in cleaning micro threaded blind holes is that it is difficult for the cleaning liquid to penetrate into the hole, and the excess material inside the threaded blind hole is difficult to clean out. At present, the method for cleaning threaded holes on motor rotor parts is to manually immerse the parts in the cleaning liquid, and use tools to insert into the threaded holes and stir them up and down to ensure that the liquid in the holes is in a flowing state. During the stirring process, the tool can shake off the excess material in the hole through impact and vibration. After completing the cleaning of 12 holes in turn, use a jet tool to rinse the threaded holes upside down one by one until the threaded holes are clean. The entire parts cleaning method is single and repetitive, relying on the operator's sense of responsibility, and the cleaning standard is difficult to quantify. Summary of the invention

[0004] In order to solve the problems that the existing cleaning of micro-threaded blind holes mostly relies on manual labor, the cleaning methods are complicated and the cleaning standards are difficult to quantify, the present invention provides a micro-threaded blind hole processing excess material cleaning device and a cleaning method, which can significantly improve the cleaning efficiency of the threaded blind holes and ensure the consistency of the cleaning effect.

[0005] The technical solution of the present invention is:

[0006] A device for cleaning excess materials in micro-threaded blind hole processing is provided, which includes a main chassis, an electric control cabinet, a visual positioning device, a liquid filtering device, a part clamping tool, a spray cleaning device, and a position operation device. The visual positioning device is located inside the main chassis and is fixedly connected to one axis of the position operation device, and is used to identify the position of the threaded hole to be cleaned; the liquid filtering device is connected to the main chassis through a water pipe, and is used to realize the recycling of the cleaning liquid during the cleaning process; the part clamping tool is located inside the main chassis and is used to fix the parts to be cleaned; the spray cleaning device is located inside the main chassis and is fixedly connected to another axis of the position operation device, and is used to clean the threaded hole; the position operation device is a three-axis module structure and is fixedly connected to the inside of the main chassis. The three axes work together to drive the visual positioning device and the spray cleaning device, which are used for part position identification and high-pressure cleaning water flow control during the operation process.

[0007] Furthermore, the parts clamping tooling and the parts to be cleaned are fastened and installed by upper and lower pressing and positioning, and the parts clamping tooling and the main chassis are fastened by lifting spring positioning pins, so that multiple motor rotor parts can be installed at one time and the parts clamping tooling and the main chassis can be installed quickly and conveniently.

[0008] Furthermore, the visual positioning device and the jet cleaning device are located on the same axis of the three-axis module. The visual positioning device identifies the positions of the threaded holes of all the installed parts to be cleaned. After the identification is completed, the position operation device drives the jet cleaning device to clean the threaded holes one by one.

[0009] Furthermore, the jet cleaning device is connected to a high-pressure water pump pipeline, and the flushing pressure range that can be adjusted by the water pump pressure regulating valve is 0.5MPa to 1.6MPa.

[0010] Furthermore, the position recognition accuracy of the visual positioning device is ≤0.01.

[0011] Furthermore, the liquid filtering device can filter solid impurities of 20 μm to 200 μm in the cleaning liquid to achieve liquid recycling.

[0012] The present invention also provides a cleaning method for a micro-threaded blind hole processing excess cleaning device, the special feature of which is that the steps of the cleaning method are:

[0013] S1: manually placing the parts to be cleaned into the parts clamping tooling;

[0014] S2: Open the safety door, fix the parts clamping tooling inside the main chassis, and close the safety door;

[0015] S3: operate the electric control cabinet, start the equipment visual positioning device to identify the position of the threaded hole of the fixed part to be cleaned through the CCD visual detection and positioning system;

[0016] S4: The position operation device drives the high-pressure nozzle of the jet cleaning device to move through the three-axis module to clean the excess material processed in the threaded hole of the fixed part to be cleaned;

[0017] S5: After a single part is cleaned, the three-axis module moves to switch materials, and the high-pressure nozzle sequentially cleans the fixed parts on the part clamping fixture. After cleaning one by one, the high-pressure nozzle is reset;

[0018] S6: During the operation, the cleaning waste liquid flows into the liquid filtering device through the pipeline to filter the solid impurities, so as to realize the recycling of the cleaning waste liquid;

[0019] S7: After the operation is completed, the electric control cabinet automatically controls the equipment to stop, opens the safety door, manually takes out the parts clamping tooling, replaces the tooling in a cycle, and cleans it, so as to achieve the installation of multiple parts at a time and the fast and convenient installation and replacement of parts clamping tooling;

[0020] S8: Regularly clean the circulating water in the filter tank of the liquid filtration device and discharge it according to the standard regulations.

[0021] Compared with the existing process, the present invention has the following beneficial effects:

[0022] 1. A device for cleaning excess materials during micro-threaded blind hole processing has been invented to improve the cleaning efficiency of threaded blind holes on parts and ensure the consistency of cleaning quality. The part clamping fixture 5 is designed to be conveniently connected to multiple parts to be cleaned through the upper and lower pressure plate structures (positioning grooves are designed on the pressure plates). The part clamping fixture 5 and the main chassis 1 are positioned by the quick replacement structure through the lifting spring positioning pin 9, making the clamping and replacement operations convenient and fast; the visual positioning device 3 is used to accurately identify the threaded holes on the parts, and the position operation device 7 drives the spray cleaning device 6 to perform high-pressure cleaning on the threaded holes, and the cleaning process is orderly and efficient; the liquid filtering device 4 is used to solve the problem of recycling the cleaning liquid during the parts cleaning process, and also solve the problem of excess materials polluting the cleaning liquid.

[0023] 2. Compared with the existing technology, a method for cleaning excess materials in micro-threaded blind hole processing has improved cleaning efficiency by more than 6 times, the cleaning quality meets the use requirements, and automatic cleaning can ensure the consistency of cleaning quality, which has practical supporting significance for the stable operation of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the rotor parts of two types of motors;

[0025] Figure 2 This is a schematic diagram of a device for quickly cleaning threaded holes of motor rotor parts;

[0026] Figure 3Figure a is a part clamping tooling (including parts) engineering drawing; Figure b is a schematic diagram of the part clamping tooling (including parts); Figure c is a schematic diagram of the assembly structure of the lifting spring locating pin and the part clamping tooling; Figure d is a schematic diagram of the lifting spring locating pin structure;

[0027] Figure 4 It is a schematic diagram of the structure of the visual positioning device, the spray cleaning device, and the position operation device;

[0028] In the figure, 1 is the main chassis, 2 is the electric control cabinet, 3 is the visual positioning device, 4 is the liquid filtering device, 5 is the parts clamping fixture, 6 is the spray cleaning device, 7 is the position operation device, 8 is the threaded hole, and 9 is the pull-type spring positioning pin. DETAILED DESCRIPTION

[0029] The present invention will be described in detail below with reference to the accompanying drawings by means of the exemplary embodiments of the present invention. It should be noted that the following detailed description of the present invention is only for the purpose of illustration and is not intended to limit the present invention.

[0030] The present invention provides a device and method for cleaning excess material after machining of a micro-threaded blind hole with a diameter of less than 2 mm on a rotor part of a power-tuned gyroscope motor. The device and method are used to quickly clean excess material remaining after machining in a threaded blind hole with a diameter of less than 2 mm on a rotor part of a power-tuned gyroscope motor. The method can realize a cleaning operation of multiple parts at a time. Before the operation, the parts are manually clamped on a carrier, and then the carrier is installed on the equipment. The position of the threaded hole 8 on each part is identified by a visual module, and the operating mechanism cleans the threaded hole 8 in turn according to a set process until all parts are cleaned. During the cleaning process, the cleaning liquid passes through a recovery and filtration device, and the liquid can be reused after adsorbing and filtering solid particles (filtration accuracy ≥ 20μm).

[0031] like Figure 2 As shown, a micro-threaded blind hole processing excess cleaning device is mainly composed of a main chassis 1, an electric control cabinet 2, a visual positioning device 3, a liquid filtering device 4, a part clamping tool 5, a spray cleaning device 6, and a position operation device 7. The visual positioning device 3, the part clamping tool 5, and the position operation device 7 are located inside the main chassis and are connected and arranged together. The liquid filtering device 4 is connected to the main chassis 1 through a water pipe, and the electric control cabinet 2 is connected to the main chassis 1 and controls the start and shut down of the entire device.

[0032] like Figure 3 As shown, the parts to be cleaned (such as Figure 1As shown in the figure, the parts clamping tool 5 is installed by pressing and positioning the parts with the upper and lower pressing methods. The parts clamping tool 5 is fixedly connected with the main chassis 1 by the lifting spring positioning pin 9. During the installation process, the upper cover of the tool is opened to insert the parts into the groove of the bottom plate, and then the upper cover is pressed and fastened by pressing and fitting the parts clamping tool 5 as a whole into the main chassis 1 by the lifting spring positioning pin 9, ensuring that the parts are relatively fixed during the cleaning process, so as to realize the installation of multiple motor rotor parts at one time and the quick and convenient installation and replacement of the parts clamping tool 5 and the main chassis 1;

[0033] like Figure 4 As shown, the visual positioning device 3, the spray cleaning device 6 and the position operation device 7 are arranged together, wherein the visual positioning device 3 is a CCD camera, and the spray cleaning device 6 is a pipeline nozzle structure. One end of the pipeline of this structure is connected to the liquid filter device 4 for guiding the cleaning liquid and realizing the liquid recycling at the same time, and the other end is connected to the nozzle for liquid outflow. The liquid outflow rate is adjusted by the water pump pressure regulating valve, and the pressure regulating valve is installed on the high-pressure side of the pipeline. At the same time, the nozzle and the three-axis module of the position operation device 7 are fixed to one axis and move synchronously with it. The position operation device 7 is composed of a servo motor and a three-axis module structure. The position operation device 7 is controlled to move by the three-axis module, and the spray cleaning device 6 and the visual positioning device 3 are fixed to the same axis. The positioning device 3 identifies the position of the threaded hole 8 of the installed part. After the identification is completed, the three-axis module is used to coordinate and drive the visual positioning device 3 and the spray cleaning device 6 to move the position, and the threaded holes 8 are cleaned one by one. The position recognition accuracy of the visual positioning device 3 is ≤0.01, and the jet cleaning device 6 can manually set the flushing pressure within the range of 0.5MPa to 1.6MPa through the water pump pressure regulating valve, so as to realize the accurate movement of the nozzle to the threaded hole to be cleaned during the cleaning process, and perform high-precision cleaning of the excess cleaning materials in the micro-threaded blind hole processing, unify the cleaning standards, and improve the cleaning efficiency;

[0034] The liquid filter device 4 is connected to the main chassis 1 through a water pipe. The cleaning liquid can filter solid impurities of 20 μm to 200 μm through the liquid filter device 4 to achieve liquid circulation.

[0035] As an exemplary embodiment of the present invention, a method for cleaning excess material from micro-threaded blind hole machining using the above cleaning device may include the following steps:

[0036] Step 1, manually placing the parts to be cleaned into the parts clamping tool 5;

[0037] Step 2, open the safety door, fix the parts clamping tool 5 inside the main chassis 1, and close the safety door;

[0038] Step 3, operate the electric control cabinet 2, start the equipment visual positioning device 3 to identify the position of the threaded hole of the fixed part to be cleaned through the CCD visual detection and positioning system;

[0039] Step 4, the position operation device 7 drives the high-pressure nozzle of the spray cleaning device 6 to move through the three-axis module to clean the excess machining in the threaded hole of the fixed part to be cleaned;

[0040] Step 5, after a single part is cleaned, the three-axis module moves to switch materials, and the high-pressure nozzle sequentially cleans the fixed parts on the part clamping fixture 5, and the high-pressure nozzle is reset after cleaning one by one;

[0041] Step 6, after the operation is completed, the cleaning waste liquid flows into the liquid filter device 4 through the pipeline to filter the solid impurities, so as to realize the recycling of the cleaning waste liquid;

[0042] After the operation in step 7 is completed, the safety door is opened, the electric control cabinet 2 automatically controls the equipment to stop, the parts clamping tooling 5 is manually taken out, the tooling is replaced cyclically for loading and cleaning, so that multiple parts can be installed at one time and the parts clamping tooling 5 can be quickly and conveniently installed and replaced;

[0043] Step 8, regularly clean the circulating water in the filter water tank in the liquid filter device 4 and discharge it according to standard regulations.

[0044] As described above, the present invention can clean the excess materials in multiple micro-threaded blind holes at one time, and the clamping and replacement operation is convenient and fast, the automatic cleaning process is orderly and efficient, and the high-pressure cleaning nozzle can be adjusted to ensure the cleanliness of the parts, solving the problems of cumbersome manual operation and inconsistent cleaning standards. In addition, the present invention uses a liquid filtering device to solve the problem of recycling the cleaning liquid during the parts cleaning process, and also solves the problem of excess materials polluting the cleaning liquid.

[0045] The above are merely embodiments, and are not intended to limit the implementation and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for cleaning excess material during micro thread blind hole machining, characterized in that: It comprises a main chassis (1) and an electric control cabinet (2); A visual positioning device (3), the visual positioning device (3) is located inside the main chassis (1) and is fixedly connected to the position operation device (7), and is used to identify the position of the threaded hole to be cleaned; A liquid filtering device (4), the liquid filtering device (4) being connected to the main chassis (1) via a water pipe and being used to realize the recycling of the cleaning liquid during the cleaning process; A parts clamping tool (5), the parts clamping tool (5) is located inside the main chassis (1) and is used to fix the parts to be cleaned; A spray cleaning device (6), the spray cleaning device (6) is located inside the main chassis (1) and is fixedly connected to the position operation device (7), and is used for cleaning the threaded hole; The position operation device (7) is a three-axis module structure fixedly connected to the inside of the main chassis (1), and the three axes cooperate to drive the visual positioning device (3) and the jet cleaning device (6) to be used for part position recognition and high-pressure cleaning water flow control during the operation process.

2. The device for cleaning excess material during micro threaded blind hole machining according to claim 1, characterized in that: The parts clamping tool (5) and the parts to be cleaned are fastened and installed by means of upper and lower pressing, positioning and fastening, and the parts clamping tool (5) and the main chassis (1) are fastened by means of lifting spring positioning pins (9), thereby achieving the installation of multiple motor rotor parts at one time and the quick and convenient installation of the parts clamping tool (5) and the main chassis (1).

3. The device for cleaning excess material during micro thread blind hole machining according to claim 1, characterized in that: The visual positioning device (3) and the jet cleaning device (6) are located on the same axis of the three-axis module. The visual positioning device (3) identifies the positions of the threaded holes of all the parts to be cleaned that are installed in place. After the identification is completed, the position operation device (7) drives the jet cleaning device (6) to clean the threaded holes one by one.

4. The device for cleaning excess material during micro thread blind hole machining according to claim 1, characterized in that: The jet cleaning device (6) is connected to a high-pressure water pump pipeline, and the flushing pressure range that can be adjusted by a water pump pressure regulating valve is 0.5 MPa to 1.6 MPa.

5. The device for cleaning excess material during micro thread blind hole machining according to claim 1, characterized in that: The position recognition accuracy of the visual positioning device (3) is ≤0.

01.

6. The device for cleaning excess material during micro thread blind hole machining according to claim 1, characterized in that: The liquid filtering device (4) can filter solid impurities of 20 μm to 200 μm in the cleaning liquid, thereby realizing liquid recycling.

7. A cleaning method using the micro-threaded blind hole processing excess cleaning device according to any one of claims 1 to 6, characterized in that: The steps of the cleaning method are: S1: manually placing the parts to be cleaned into the parts clamping tool (5); S2: Open the safety door, fix the parts clamping tool (5) inside the main chassis (1), and close the safety door; S3: operating the electric control cabinet (2) and starting the equipment visual positioning device (3) to identify the position of the threaded hole of the fixed part to be cleaned through the CCD visual detection and positioning system; S4: The position operation device (7) drives the high-pressure nozzle of the spray cleaning device (6) to move through the three-axis module to clean the excess machining in the threaded hole of the fixed part to be cleaned; S5: After a single part is cleaned, the three-axis module moves to switch materials, and the high-pressure nozzle sequentially cleans the fixed parts on the part clamping fixture (5). After each cleaning is completed, the high-pressure nozzle is reset; S6: During the operation, the cleaning waste liquid flows into the liquid filtering device (4) through the pipeline to filter the solid impurities, so as to realize the recycling of the cleaning waste liquid; S7: After the operation is completed, the electric control cabinet (2) automatically controls the equipment to stop, opens the safety door, manually takes out the parts clamping tooling (5), replaces the tooling in a cycle, and performs cleaning, so as to achieve the installation of multiple parts at a time and the quick and convenient installation and replacement of the parts clamping tooling (5); S8: Regularly clean the circulating water in the filter water tank in the liquid filter device (4) and discharge it according to the standard regulations.

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