CN114602882B - Automatic cleaning system for precision assembly workshop and cleaning and detecting method thereof - Google Patents
Automatic cleaning system for precision assembly workshop and cleaning and detecting method thereof Download PDFInfo
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- 238000004140 cleaning Methods 0.000 title claims abstract description 257
- 238000000034 method Methods 0.000 title claims description 25
- 239000002904 solvent Substances 0.000 claims abstract description 273
- 239000007788 liquid Substances 0.000 claims abstract description 107
- 238000001514 detection method Methods 0.000 claims abstract description 88
- 238000011010 flushing procedure Methods 0.000 claims abstract description 52
- 238000004821 distillation Methods 0.000 claims abstract description 51
- 238000011084 recovery Methods 0.000 claims abstract description 43
- 238000005406 washing Methods 0.000 claims abstract description 43
- 239000002699 waste material Substances 0.000 claims abstract description 35
- 238000004506 ultrasonic cleaning Methods 0.000 claims abstract description 22
- 239000012459 cleaning agent Substances 0.000 claims abstract description 12
- 238000002791 soaking Methods 0.000 claims abstract description 12
- 238000003860 storage Methods 0.000 claims description 36
- 230000002572 peristaltic effect Effects 0.000 claims description 28
- 239000002245 particle Substances 0.000 claims description 10
- 239000004065 semiconductor Substances 0.000 claims description 10
- 238000010926 purge Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 7
- 238000005057 refrigeration Methods 0.000 claims description 7
- 230000009286 beneficial effect Effects 0.000 claims description 3
- 238000009835 boiling Methods 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 238000005381 potential energy Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000000861 blow drying Methods 0.000 claims description 2
- 238000001914 filtration Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 11
- 230000003749 cleanliness Effects 0.000 abstract description 4
- 239000003292 glue Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 235000008694 Humulus lupulus Nutrition 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/14—Removing waste, e.g. labels, from cleaning liquid; Regenerating cleaning liquids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N2015/0687—Investigating concentration of particle suspensions in solutions, e.g. non volatile residue
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Cleaning By Liquid Or Steam (AREA)
Abstract
The utility model provides a precision assembly workshop self-cleaning system, includes that solvent filtration module, solvent are carried and pipeline cleaning module, are washd station module, granularity detection module, waste liquid recovery module. The solvent filtering module heats the low-boiling-point flash-point-free cleaning agent for distillation to realize ultra-clean filtration, and a secondary distillation filtration mode is adopted to ensure the cleanliness of the cleaning agent; the solvent conveying and pipeline cleaning module provides a large-flow non-pressurized solvent for soaking cleaning or ultrasonic cleaning and a small-flow pressurized solvent for washing parts or pipelines; the cleaning station module receives a clean solvent or discharges waste liquid through an electromagnetic valve switch, and has the functions of ultrasonic cleaning, soaking cleaning and flushing; the granularity detection module is used for detecting the granularity of the solvent before and after cleaning, so that the cleaning effect is quantized; the waste liquid recovery module is used for recovering waste liquid in the solvent filtering module. The invention realizes the automatic cleaning and detection of the precision instrument components.
Description
Technical Field
The invention relates to an automatic cleaning system for a precision assembly workshop, and belongs to the technical field of precision cleaning.
Background
In the field of precision instruments and meters, particularly liquid floating inertia instruments, the cleaning effect of components directly influences the precision and reliability of the instruments. The quality influence of cleaning is mainly shown in the following aspects: (1) Before glue joint, firstly, a glue joint surface is cleaned to remove tiny particles and grease on the glue joint surface, and if the glue joint surface is not cleaned completely, the glue joint strength is reduced or the leakage rate of a sealing part is reduced seriously, so that the reliability of a product is directly influenced; (2) For a liquid floating inertia instrument, if parts and components in an inner cavity of a float assembly are not cleaned completely, particles enter a gap of a ball bowl of a motor, the service life of the motor is directly influenced, and the motor is seriously clamped; if the parts and components in the inner cavity of the instrument are not cleaned completely, the excess moves to a sensitive part, and the number of hops of the test data of the instrument is caused. The cleaning equipment is a necessary equipment in the production process of high-precision instruments and meters, and plays an important role in controlling the quality of products and prolonging the service life of the products.
Most of the traditional precise cleaning methods adopt an ultrasonic cleaning mode and a manual scrubbing mode, and a part of the traditional precise cleaning methods adopt a soaking cleaning mode. The cleaning equipment is generally fixed multi-tank ultrasonic cleaning equipment or circulating spray cleaning equipment. The equipment has a plurality of defects which are mainly reflected in the following aspects:
(1) The multi-groove ultrasonic cleaning equipment cannot be completely sealed when the low-boiling-point flashpoint-free cleaning agent is used for distillation and circulation cleaning, and the solvent loss is large.
(2) The cleaning mode is single, and the cleaning quality of complex parts is difficult to ensure.
(3) The cleaning equipment is separated from the assembly station, and the parts are transferred to the assembly station after being cleaned, so that the risk of secondary pollution is caused.
(4) For complex cleaning processes, the solvent particle size cannot be detected in the whole process before and after cleaning.
(5) The multi-tank ultrasonic cleaning equipment is large in size generally, and the process layout of a workshop is influenced.
Disclosure of Invention
The technical problem solved by the invention is as follows: the invention overcomes the defects of the prior art and provides an automatic cleaning system for a precision assembly workshop and a cleaning and detecting method thereof.
The technical solution of the invention is as follows: an automatic cleaning system of a precision assembly workshop comprises a solvent storage box, a solvent delivery pump, a primary distillation box, a pipeline, a secondary distillation box, a clean solvent box, a flushing pump, an overflow valve, a flushing filter, a super-flushing pump, a super-flushing filter, a plurality of cleaning stations, an air source, a cleaning pipeline electromagnetic valve, a cleaning pipeline one-way valve, a peristaltic pump, a detection solvent one-way valve, a solvent granularity detection box, a detection solvent recovery box, a granularity detector, a cleaning detector electromagnetic valve, a cleaning detector one-way valve, a solvent return pump, a waste liquid recovery pump, a detection solvent recovery pump, a waste liquid recovery box, a return pipeline, a detection solvent cleaning electromagnetic valve and a two-position three-way electromagnetic valve;
the solvent delivery pump is connected with the solvent storage tank and the first-stage distillation tank and is used for delivering the solvent in the solvent storage tank to the first-stage distillation tank; the pipeline is connected with the first-stage distillation box and the second-stage distillation box, so that the condensed solvent flows into the second-stage distillation box from the first-stage distillation box; the inlet of the flushing pump is connected with the clean solvent tank, and the outlet of the flushing pump is connected with the flushing filter and the overflow valve; the outlet of the overflow valve is connected with a clean solvent tank; an inlet of the ultra-washing pump is connected with the clean solvent box, an outlet of the ultra-washing pump is connected with the ultra-washing filter, and the ultra-washing pump inputs cleaning agent to the ultra-washing filter for ultrasonic cleaning; a plurality of cleaning stations are connected in parallel and then are respectively connected with a flushing filter, an ultra-cleaning filter and an air source outlet; the inlet of the electromagnetic valve of the cleaning pipeline is connected in parallel with the outlet of the flushing filter, and the outlet of the electromagnetic valve of the cleaning pipeline is connected with the one-way valve of the cleaning pipeline; the cleaning pipeline check valve is connected in series with the liquid return pipeline; a plurality of cleaning stations are connected in parallel to a liquid return pipeline; the inlet of the peristaltic pump is connected in parallel with the liquid return pipeline, and the outlet of the peristaltic pump is connected with the solvent detection one-way valve; the solvent granularity detection box comprises three interfaces which are respectively connected with an outlet of the detection solvent one-way valve and an outlet of the cleaning detector one-way valve, an inlet of the detection solvent cleaning electromagnetic valve and an inlet of the granularity detector; the outlet of the detection solvent cleaning electromagnetic valve is connected with a detection solvent recovery tank; the outlet of the granularity detector is connected to the inlet of a detection solvent recovery box; the inlet of the electromagnetic valve of the cleaning detector is connected in parallel with the outlet pipeline of the flushing filter, and the outlet of the electromagnetic valve of the cleaning detector is connected in series with the one-way valve of the cleaning detector; the inlet of the solvent return pump is connected with a normal opening of a two-position three-way electromagnetic valve, and the outlet of the solvent return pump is connected with a solvent storage tank and a normal closing opening of the two-position three-way electromagnetic valve; an inlet of the waste liquid recovery pump is sequentially connected to a solvent storage box, a first-stage distillation box and an outlet of a second-stage distillation box, and an outlet of the waste liquid recovery pump is connected with a waste liquid recovery box; and the inlet of the detection solvent recovery pump is connected to the outlet of the detection solvent recovery tank, and the outlet of the detection solvent recovery pump is connected to the solvent storage tank.
The solvent storage tank comprises a normally open valve and a normally closed valve; the inlet of the normally open valve is connected with a solvent storage tank, and the outlet of the normally open valve is connected with a solvent delivery pump; the outlet of the normally closed valve is connected in parallel with the inlet of a solvent delivery pump; when the solvent is replenished, the normally open valve is closed, and the normally closed valve is opened.
The first-stage distillation box and the second-stage distillation box respectively comprise a heater, a condenser and a pressure sensor; the temperature of the heater is set within the boiling point range of the solvent, so that the solvent is quickly volatilized; the condenser comprises a slope structure, a ring groove and a semiconductor refrigerating piece; the slope structure is arranged on the upper part of the distillation box shell, the semiconductor refrigeration sheet is arranged on the slope structure, and the slope structure is cooled through the semiconductor refrigeration sheet and realizes the condensation of liquid through a conical surface; the ring groove is arranged below the slope structure and used for collecting the condensed solvent; the pressure sensor is used for detecting the pressure in the cavity of the first-stage distillation box, and when the pressure in the cavity exceeds an early warning value, the heater is turned off and an alarm is given.
The cleaning station comprises an ultra-cleaning electromagnetic valve, a flushing electromagnetic valve, a liquid discharging electromagnetic valve, a purging electromagnetic valve and an automatic cleaning device; the automatic cleaning device has the functions of soaking, cleaning, ultrasonic cleaning and flushing and is placed inside the hundred-grade clean bench; the automatic cleaning device is connected with the super-cleaning filter through the super-cleaning electromagnetic valve, is connected with the flushing filter through the flushing electromagnetic valve, is connected into the liquid return pipeline through the liquid discharge electromagnetic valve, and is connected with the air source through the purging electromagnetic valve.
The waste liquid recovery box also comprises a waste liquid valve for discharging waste liquid.
The solvent granularity detection box has a stirring function, is positioned above the granularity detector, has potential energy difference and is beneficial to the granularity detector to suck the solvent.
The cleaning stations are arranged in parallel.
And the cleaning stations are cleaned simultaneously, and when the granularity detector detects that a conflict occurs, the different cleaning stations are automatically sequenced according to the cleaning sequence or the emergency degree, and the predicted waiting time is displayed.
The method for automatically cleaning and detecting the components by ultrasonic waves by using the automatic cleaning system of the precision assembly workshop comprises the following steps:
step one, starting a super-washing pump to convey the solvent in a clean solvent box to a washing station;
step two, opening the super-washing electromagnetic valve, and closing the super-washing electromagnetic valve after the liquid level in the automatic cleaning device tank reaches a set liquid level;
step three, starting an automatic cleaning device for ultrasonic cleaning, and closing the automatic cleaning device after the set time is reached;
opening a liquid discharge electromagnetic valve, and conveying the solvent in the automatic cleaning device to a liquid return pipeline;
step five, starting a peristaltic pump, conveying the solvent in the liquid return pipeline to a solvent granularity detection box, and closing the liquid return pipeline after running for a set time;
step six, starting a solvent return pump, conveying the solvent in the return pipeline to a solvent storage tank, and closing the solvent return pump after the liquid level in the tank of the automatic cleaning device is zero;
step seven, starting a granularity detector, automatically extracting the solvent in the solvent granularity detection box, and detecting the granularity, wherein if the granularity detection meets the requirement, the cleaning is finished;
otherwise, skipping to the step two for repeated cleaning, and simultaneously, opening a two-position three-way electromagnetic valve to convey the solvent in the liquid return pipeline to a solvent storage tank; opening a cleaning pipeline electromagnetic valve, and conveying the solvent in the clean solvent box to a liquid return pipeline; starting a peristaltic pump to convey the solvent in the liquid return pipeline to the solvent granularity detection box; and then, starting an automatic cleaning mode of the granularity detector, automatically extracting the solvent in the solvent granularity detection box for cleaning, closing a cleaning pipeline electromagnetic valve, closing a two-position three-way electromagnetic valve and closing the peristaltic pump after the granularity meets the requirement.
The method for automatically washing and detecting the components by using the automatic cleaning system of the precision assembly workshop comprises the following steps:
step one, starting a washing pump, and conveying the solvent in a clean solvent box to a cleaning station;
step two, aligning a flushing port of the automatic cleaning device to a component cleaning part, opening a flushing electromagnetic valve, and closing the flushing electromagnetic valve after running for a set time;
opening a blow washing electromagnetic valve, blowing the high-pressure clean air to the part to be cleaned of the component, and closing the part after running for a set time;
opening a liquid discharge electromagnetic valve, and conveying the solvent in the automatic cleaning device to a liquid return pipeline;
step five, starting a peristaltic pump, conveying the solvent in the liquid return pipeline to a solvent granularity detection box, and closing the liquid return pipeline after running for a set time;
step six, starting a solvent return pump, conveying the solvent in the return pipeline to a solvent storage tank, and closing the solvent return pump after the liquid level in the tank of the automatic cleaning device is zero;
step seven, starting a granularity detector, automatically extracting the solvent in the solvent granularity detection box, and detecting the granularity, wherein if the granularity detection meets the requirement, the cleaning is finished;
otherwise, skipping to the step two for repeated cleaning, and simultaneously opening the two-position three-way electromagnetic valve to convey the solvent in the liquid return pipeline to the solvent storage tank; opening a cleaning pipeline electromagnetic valve, and conveying the solvent in the clean solvent box to a liquid return pipeline; starting a peristaltic pump to convey the solvent in the liquid return pipeline to the solvent granularity detection box; and then, opening an automatic cleaning mode of the granularity detector, automatically extracting the solvent in the solvent granularity detection box for cleaning, closing the cleaning pipeline electromagnetic valve, closing the two-position three-way electromagnetic valve and closing the peristaltic pump after the granularity meets the requirement.
Compared with the prior art, the invention has the advantages that:
(1) The invention provides an automatic cleaning system for a precision assembly workshop, which can be used for automatically cleaning and detecting the effect of precision instrument components, is provided with a special cleaning station, can be assembled after cleaning, improves the assembly efficiency, adopts multiple cleaning modes, ensures the cleaning effect (containing structures such as deep holes and grooves) of the components with complex structures, improves the cleaning automation level on the whole and ensures the production quality of products.
(2) The invention heats the low-boiling-point flash-point-free cleaning agent for distillation, realizes ultra-clean filtration, adopts a two-stage distillation filtration mode, ensures the cleanliness of the cleaning agent, and has good sealing performance of the whole process and small solvent loss.
(3) The invention provides a large-flow non-pressurized solvent for soaking washing or ultrasonic washing on one hand, and provides a small-flow pressurized solvent for washing parts or pipelines on the other hand, and various washing modes ensure the washing effect of complex parts and components.
(4) The cleaning station is positioned in the hundred-grade clean bench, receives clean solvent or discharges waste liquid through the electromagnetic valve switch, has the functions of ultrasonic cleaning, soaking cleaning and flushing, is integrated with the assembly station, and is directly assembled after the cleaning of components is finished, so that the efficiency is improved, and secondary pollution during transfer is avoided.
(5) The particle size detector is matched, and the particle size detection in the whole cleaning process can be realized by adopting a special design.
(6) The invention can be applied to the fields of aerospace, precision instruments and the like, provides effective process equipment for the precision component cleaning process, improves the cleaning automation degree and ensures the product quality.
Drawings
FIG. 1 is a schematic diagram of an automatic cleaning system for a precision assembly plant in an embodiment of the present invention;
FIG. 2 is a flow chart of an automatic ultrasonic cleaning method for general components by using the automatic cleaning system for a precision assembly shop according to an embodiment of the present invention;
fig. 3 is a flowchart of an automatic ultrasonic wave washing method for complex components to be treated by using the automatic cleaning system for a precision assembly shop according to an embodiment of the present invention.
Detailed Description
In order to better understand the technical solutions of the present application, the following detailed descriptions are provided with accompanying drawings and specific embodiments, and it should be understood that the specific features in the embodiments and examples of the present application are detailed descriptions of the technical solutions of the present application, and are not limitations of the technical solutions of the present application, and in a case of no conflict, the technical features in the embodiments and examples of the present application may be combined with each other.
The following describes in further detail an automatic cleaning system and method for a precision assembly workshop according to an embodiment of the present application with reference to the drawings of the specification, and specific implementations may include (as shown in fig. 1):
the utility model provides a precision assembly workshop self-cleaning system, includes that solvent filtration module, solvent are carried and pipeline cleaning module, are washd station module, granularity detection module, waste liquid recovery module. The solvent filtering module heats the low-boiling-point flash-point-free cleaning agent for distillation to realize ultra-clean filtration, and a secondary distillation filtration mode is adopted to ensure the cleanliness of the cleaning agent; the solvent conveying and pipeline cleaning module provides a large-flow non-pressurized solvent for soaking cleaning or ultrasonic cleaning on one hand, and provides a small-flow pressurized solvent for washing parts or pipelines on the other hand; the cleaning station module is positioned in the hundred-grade clean bench, receives a clean solvent or discharges waste liquid through a solenoid valve switch, and has the functions of ultrasonic cleaning, soaking cleaning and flushing; the granularity detection module is used for detecting the granularity of the solvent before and after cleaning, so that the cleaning effect is quantized; the waste liquid recovery module is used for recovering waste liquid in the solvent filtering module. The invention realizes automatic cleaning and detection of precision instrument components, is provided with a special cleaning station, can be assembled after cleaning, improves the assembly efficiency, adopts multiple cleaning modes, ensures the cleaning effect of the components with complex structures, integrally improves the cleaning automation level and ensures the production quality of products.
Fig. 1 is a schematic diagram of an automatic cleaning system for a precision assembly shop in an embodiment of the present invention, where the automatic cleaning system for a precision assembly shop is applicable to automatic cleaning and effect detection of precision instrument components. Referring to fig. 1, the automatic cleaning system for the precision assembly workshop includes a solvent storage tank 1, a solvent delivery pump 2, a first-stage distillation tank 3, a pipeline 4, a second-stage distillation tank 5, a clean solvent tank 6, a flushing pump 7, an overflow valve 8, a flushing filter 9, an ultra-flushing pump 10, an ultra-flushing filter 11, a cleaning station 12, an air source 13, a cleaning pipeline electromagnetic valve 14, a cleaning pipeline check valve 15, a peristaltic pump 16, a detection solvent check valve 17, a solvent granularity detection box 18, a detection solvent recovery tank 19, a granularity detector 20, a cleaning detector electromagnetic valve 21, a cleaning detector check valve 22, a solvent return pump 23, a waste liquid recovery pump 24, a detection solvent recovery pump 25, a waste liquid recovery tank 26, a return pipeline 27, a detection solvent cleaning electromagnetic valve 28, and a two-position three-way electromagnetic valve 29;
the solvent delivery pump 2 is connected with the solvent storage tank 1 and the first-stage distillation tank 3 and is used for delivering the solvent in the solvent storage tank 1 to the first-stage distillation tank 3; the pipeline 4 is connected with the first-stage distillation box 3 and the second-stage distillation box 5, so that the condensed solvent flows into the second-stage distillation box 5 from the first-stage distillation box 3; the inlet of the flushing pump 7 is connected with the clean solvent tank 6, and the outlet is connected with the flushing filter 9 and the overflow valve 8; the outlet of the overflow valve 8 is connected with the clean solvent tank 6; an inlet of the ultra-washing pump 10 is connected with the clean solvent tank 6, an outlet of the ultra-washing pump is connected with the ultra-washing filter 11, and the ultra-washing pump 10 inputs a cleaning agent to the ultra-washing filter 11 for ultrasonic cleaning; a plurality of cleaning stations 12 are connected in parallel with outlets of the flushing filter 9, the ultra-cleaning filter 11 and the air source 13; the inlet of the electromagnetic valve 14 of the cleaning pipeline is connected in parallel with the outlet of the flushing filter 9, and the outlet of the electromagnetic valve is connected with the one-way valve 15 of the cleaning pipeline; the cleaning pipeline one-way valve 15 is connected in series with the liquid return pipeline 27; a plurality of cleaning stations 12 are connected in parallel to a liquid return pipeline 27; the inlet of the peristaltic pump 16 is connected in parallel with a liquid return pipeline 27, and the outlet of the peristaltic pump is connected with a detection solvent one-way valve 17; the solvent granularity detection box 18 is provided with three interfaces which are respectively connected with the outlet of the detection solvent one-way valve 17 and the cleaning detector one-way valve 22, the inlet of the detection solvent cleaning electromagnetic valve 28 and the inlet of the granularity detector 20; the outlet of the detection solvent cleaning electromagnetic valve 28 is connected with a detection solvent recovery tank 19; the outlet of the granularity detector 20 is connected to the inlet of the solvent recovery tank 19; the inlet of the electromagnetic valve 21 of the cleaning detector is connected in parallel with the outlet pipeline of the flushing filter 9, and the outlet of the electromagnetic valve is connected in series with the check valve 22 of the cleaning detector; the inlet of the solvent return pump 23 is connected with a normally open port of a two-position three-way electromagnetic valve 29, and the outlet of the solvent return pump is connected with a normally closed port of the solvent storage tank 1 and the two-position three-way electromagnetic valve 29; an inlet of a waste liquid recovery pump 24 is sequentially connected to outlets of the solvent storage tank 1, the first-stage distillation tank 3 and the second-stage distillation tank 5, and an outlet is connected with a waste liquid recovery tank 26; the inlet of the detection solvent recovery pump 25 is connected to the outlet of the detection solvent recovery tank 19, and the outlet of the detection solvent recovery pump 25 is connected to the solvent storage tank 1;
the solvent storage tank 1 comprises a normally open valve 1-1 and a normally closed valve 1-2; an inlet of the normally open valve 1-1 is connected with a solvent storage tank 1, and an outlet of the normally open valve is connected with a solvent delivery pump 2; the outlet of the normally closed valve 1-2 is connected in parallel with the inlet of the solvent delivery pump 2; when the solvent is supplemented, the normally open valve 1-1 is closed, and the normally closed valve 1-2 is opened.
The first-stage distillation box 3 and the second-stage distillation box 5 are identical in structure and respectively comprise a heater 3-1, a condenser 3-2 and a pressure sensor 3-3; the temperature of the heater 3-1 is set to be within the boiling point range of the solvent, so that the solvent is quickly volatilized; the condenser 3-2 adopts a slope and ring groove structure design, and the temperature is reduced through a semiconductor refrigerating sheet, so that the volatile solvent is quickly condensed and enters the ring groove; the condenser 3-2 comprises a slope structure, a ring groove and a semiconductor refrigerating sheet; the slope structure is arranged on the upper part of the distillation box shell, the semiconductor refrigeration sheet is arranged on the slope structure, and the slope structure is cooled through the semiconductor refrigeration sheet and realizes the condensation of liquid through a conical surface; the ring groove is arranged below the slope structure and used for collecting the condensed solvent; the pressure sensor 3-3 is used for detecting the pressure in the cavity of the first-stage distillation box 3, and once the pressure exceeds an early warning value, the heater 3-1 is closed and an alarm is given.
The cleaning station 12 comprises an ultra-cleaning electromagnetic valve 12-1, a flushing electromagnetic valve 12-2, a liquid discharging electromagnetic valve 12-3, a purging electromagnetic valve 12-4 and an automatic cleaning device 12-5; the automatic cleaning device has the functions of soaking, cleaning, ultrasonic cleaning and flushing and is placed inside the hundred-grade clean bench; the automatic cleaning device 12-5 is connected with the ultra-cleaning filter 11 through an ultra-cleaning electromagnetic valve 12-1, is connected with the flushing filter 9 through a flushing electromagnetic valve 12-2, is connected to the liquid return pipeline 27 through a liquid discharge electromagnetic valve 12-3, and is connected with the air source 13 through a purging electromagnetic valve 12-4.
The waste liquid recovery tank 26 further includes a waste liquid valve 26-1 for discharging waste liquid. The solvent particle size detection box 18 has a stirring function, is located above the particle size detector 20, has potential energy difference, and is beneficial to the particle size detector 20 to absorb the solvent.
The cleaning stations 12 are arranged in plurality and in parallel.
When the particle size detector 20 detects that a conflict occurs, the different cleaning stations 12 are automatically sorted according to the cleaning sequence or the urgency degree, and the predicted waiting time is displayed.
Fig. 2 is a flowchart of an automatic ultrasonic cleaning method for general components by using the automatic cleaning system for a precision assembly shop according to an embodiment of the present invention. Referring to fig. 2, the method includes the following steps:
step one, starting a super-washing pump 10, and conveying the solvent in a clean solvent box 6 to a washing station 12;
step two, opening the super-washing electromagnetic valve 12-1, and closing the automatic washing device 12-5 after the proper liquid level is reached in the tank;
step three, starting the automatic cleaning device 12-5 for ultrasonic cleaning, and closing after the set time is reached;
step four, opening a liquid discharge electromagnetic valve 12-3, and conveying the solvent in the automatic cleaning device 12-5 to a liquid return pipeline 27;
step five, starting the peristaltic pump 16, conveying the solvent in the liquid return pipeline 27 to the solvent granularity detection box 18, and closing the peristaltic pump 16 after running for a certain time;
step six, the solvent return pump 23 is started, the solvent in the return pipeline 27 is conveyed to the solvent storage tank 1, and the solvent return pump 23 is closed after the liquid level in the tank of the automatic cleaning device 12-4 is zero;
step seven, starting a granularity detector 20, automatically extracting the solvent in the solvent granularity detection box 18, detecting the granularity, if the granularity detection meets the requirement, finishing the cleaning, otherwise, skipping to the second step of repeated cleaning, starting a two-position three-way electromagnetic valve 29 while repeatedly cleaning, and conveying the solvent in the liquid return pipeline 27 to the solvent storage box 1; opening the electromagnetic valve 14 of the cleaning pipeline to convey the solvent in the clean solvent tank 6 to the liquid return pipeline 27; starting the peristaltic pump 16 to convey the solvent in the liquid return pipeline 27 to the solvent granularity detection box 18;
and then, starting an automatic cleaning mode of the granularity detector 20, automatically pumping the solvent in the solvent granularity detection box 18 for cleaning, closing the cleaning pipeline electromagnetic valve 14, closing the two-position three-way electromagnetic valve 29 and closing the peristaltic pump 16 after the granularity meets the requirement.
Fig. 3 is a flow chart of an automatic ultrasonic wave washing method for a component to be treated (including a deep hole, a groove and the like) by using the automatic cleaning system for the precision assembly workshop provided by the embodiment of the invention. Referring to fig. 3, the method includes the following steps:
step one, starting a washing pump 10, and conveying the solvent in a clean solvent box 6 to a cleaning station 12;
step two, aligning a flushing port of the automatic cleaning device 12-5 to a component cleaning part, opening a flushing electromagnetic valve 12-2, and closing after running for a certain time;
step three, opening a purging electromagnetic valve 12-4, aiming high-pressure clean air (the pressure is within the range of 0.3-0.6 MPa) at the cleaning part of the component for blow-drying, and closing after running for a certain time;
step four, opening the liquid discharge electromagnetic valve 12-3, and conveying the solvent in the automatic cleaning device 12-5 to the liquid return pipeline 27;
step five, starting the peristaltic pump 16, conveying the solvent in the liquid return pipeline 27 to the solvent granularity detection box 18, and closing after running for a certain time;
step six, the solvent return pump 23 is started, the solvent in the return pipeline 27 is conveyed to the solvent storage tank 1, and the solvent return pump 23 is closed after the liquid level in the tank of the automatic cleaning device 12-5 is zero;
seventhly, starting the granularity detector 20, automatically extracting the solvent in the solvent granularity detection box 18, detecting the granularity, if the granularity detection meets the requirement, finishing the cleaning, otherwise, skipping to the step for repeated cleaning, starting the two-position three-way electromagnetic valve 29 while repeatedly cleaning, and conveying the solvent in the liquid return pipeline 27 to the solvent storage box 1; opening the electromagnetic valve 14 of the cleaning pipeline to convey the solvent in the clean solvent tank 6 to the liquid return pipeline 27; starting the peristaltic pump 16 to convey the solvent in the liquid return pipeline 27 to the solvent granularity detection box 18; and (3) starting an automatic cleaning mode of the granularity detector 20, automatically pumping the solvent in the solvent granularity detection box 18 for cleaning, closing the cleaning pipeline electromagnetic valve 14, closing the two-position three-way electromagnetic valve 29 and closing the peristaltic pump 16 after the granularity meets the requirement.
The technical scheme of the embodiment provides an automatic cleaning system for a precision assembly workshop, a solvent filtering module heats a low-boiling-point flash-point-free cleaning agent for distillation, ultra-clean filtering is realized, a two-stage distillation filtering mode is adopted, the cleanliness of the cleaning agent is ensured, the sealing performance of the whole process is good, and the solvent loss is small; the solvent conveying and pipeline cleaning module provides a large-flow non-pressurized solvent for soaking cleaning or ultrasonic cleaning on one hand, and provides a small-flow pressurized solvent for washing parts or pipelines on the other hand, and various cleaning modes ensure the cleaning effect of complex parts and components; the cleaning station module is positioned in the hundred-grade clean bench, receives a clean solvent or discharges waste liquid through the electromagnetic valve switch, has the functions of ultrasonic cleaning, soaking cleaning and flushing, is integrated with the assembly station, and is directly assembled after the cleaning of components is finished, so that the efficiency is improved, and secondary pollution during transfer is avoided; the granularity detection module is used for detecting the granularity of the solvent before and after cleaning, so that the cleaning effect is quantized, and the granularity detection in the whole cleaning process can be realized by adopting a special design; the waste liquid recovery module is used for recovering waste liquid in the solvent filtering module. The invention realizes automatic cleaning and detection of precision instrument components, is provided with a special cleaning station, can be assembled after cleaning, improves the assembly efficiency, adopts multiple cleaning modes, ensures the cleaning effect of the components with complex structures, integrally improves the cleaning automation level and ensures the production quality of products.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Those skilled in the art will appreciate that those matters not described in detail in the present specification are well known in the art.
Claims (10)
1. The utility model provides a precision assembly workshop self-cleaning system which characterized in that: the device comprises a solvent storage box (1), a solvent delivery pump (2), a first-stage distillation box (3), a pipeline (4), a second-stage distillation box (5), a clean solvent box (6), a flushing pump (7), an overflow valve (8), a flushing filter (9), an ultra-flushing pump (10), an ultra-flushing filter (11), a plurality of cleaning stations (12), an air source (13), a cleaning pipeline electromagnetic valve (14), a cleaning pipeline one-way valve (15), a peristaltic pump (16), a detection solvent one-way valve (17), a solvent granularity detection box (18), a detection solvent recovery box (19), a granularity detector (20), a cleaning detector electromagnetic valve (21), a cleaning detector one-way valve (22), a solvent delivery pump (23), a waste liquid recovery pump (24), a detection solvent recovery pump (25), a waste liquid recovery box (26), a return liquid pipe (27), a detection solvent cleaning electromagnetic valve (28) and a two-position three-way electromagnetic valve (29);
the solvent delivery pump (2) is connected with the solvent storage tank (1) and the first-stage distillation tank (3) and is used for delivering the solvent in the solvent storage tank (1) to the first-stage distillation tank (3); the pipeline (4) is connected with the first-stage distillation box (3) and the second-stage distillation box (5) to realize that the condensed solvent flows into the second-stage distillation box (5) from the first-stage distillation box (3); the inlet of the flushing pump (7) is connected with the clean solvent tank (6), and the outlet of the flushing pump is connected with the flushing filter (9) and the overflow valve (8); the outlet of the overflow valve (8) is connected with a clean solvent tank (6); an inlet of the super-washing pump (10) is connected with the clean solvent tank (6), an outlet of the super-washing pump is connected with the super-washing filter (11), and the super-washing pump (10) inputs a cleaning agent into the super-washing filter (11) for ultrasonic cleaning; a plurality of cleaning stations (12) are connected in parallel and then are respectively connected with the outlet of the flushing filter (9), the ultra-cleaning filter (11) and the air source (13); the inlet of the cleaning pipeline electromagnetic valve (14) is connected in parallel to the outlet of the flushing filter (9), and the outlet of the cleaning pipeline electromagnetic valve is connected to the cleaning pipeline one-way valve (15); the cleaning pipeline one-way valve (15) is connected in series into a liquid return pipeline (27); a plurality of cleaning stations (12) are connected in parallel to a liquid return pipeline (27); the inlet of the peristaltic pump (16) is connected in parallel with a liquid return pipeline (27), and the outlet of the peristaltic pump is connected with a solvent detection one-way valve (17); the solvent granularity detection box (18) comprises three interfaces which are respectively connected to outlets of a detection solvent one-way valve (17) and a cleaning detector one-way valve (22), an inlet of a detection solvent cleaning electromagnetic valve (28) and an inlet of a granularity detector (20); the outlet of the detection solvent cleaning electromagnetic valve (28) is connected with a detection solvent recovery tank (19); an outlet of the granularity detector (20) is connected to an inlet of a detection solvent recovery box (19); the inlet of the electromagnetic valve (21) of the cleaning detector is connected in parallel to the outlet pipeline of the flushing filter (9), and the outlet of the electromagnetic valve is connected in series to the one-way valve (22) of the cleaning detector; the inlet of the solvent return pump (23) is connected with a normally open port of a two-position three-way electromagnetic valve (29), and the outlet of the solvent return pump is connected with a normally closed port of a solvent storage tank (1) and the two-position three-way electromagnetic valve (29); an inlet of the waste liquid recovery pump (24) is sequentially connected to outlets of the solvent storage box (1), the first-stage distillation box (3) and the second-stage distillation box (5), and an outlet of the waste liquid recovery pump is connected with a waste liquid recovery box (26); the inlet of the detection solvent recovery pump (25) is connected to the outlet of the detection solvent recovery tank (19), and the outlet of the detection solvent recovery pump (25) is connected to the solvent storage tank (1).
2. The automatic cleaning system for the precision assembly workshop as claimed in claim 1, wherein: the solvent storage tank (1) comprises a normally open valve (1-1) and a normally closed valve (1-2); the inlet of the normally open valve (1-1) is connected with a solvent storage tank (1), and the outlet of the normally open valve is connected with a solvent delivery pump (2); the outlet of the normally closed valve (1-2) is connected in parallel with the inlet of the solvent delivery pump (2); when the solvent is supplemented, the normally open valve (1-1) is closed, and the normally closed valve (1-2) is opened.
3. The precision assembly plant automatic cleaning system according to claim 1, wherein: the first-stage distillation box (3) and the second-stage distillation box (5) both comprise a heater (3-1), a condenser (3-2) and a pressure sensor (3-3); the temperature of the heater (3-1) is set within the boiling point range of the solvent, so that the solvent is quickly volatilized; the condenser (3-2) comprises a slope structure, a ring groove and a semiconductor refrigeration piece; the slope structure is arranged on the upper part of the distillation box shell, the semiconductor refrigeration sheet is arranged on the slope structure, and the slope structure is cooled through the semiconductor refrigeration sheet and realizes the condensation of liquid through a conical surface; the ring groove is arranged below the slope structure and used for collecting the condensed solvent; the pressure sensor (3-3) is used for detecting the pressure in the cavity of the first-stage distillation box (3), and when the pressure in the cavity exceeds an early warning value, the heater (3-1) is turned off and an alarm is given.
4. The precision assembly plant automatic cleaning system according to claim 1, wherein: the cleaning station (12) comprises an ultra-cleaning electromagnetic valve (12-1), a flushing electromagnetic valve (12-2), a liquid discharging electromagnetic valve (12-3), a purging electromagnetic valve (12-4) and an automatic cleaning device (12-5); the automatic cleaning device (12-5) has the functions of soaking, cleaning, ultrasonic cleaning and flushing and is placed inside a hundred-grade clean bench; the automatic cleaning device (12-5) is connected with the ultra-cleaning filter (11) through the ultra-cleaning electromagnetic valve (12-1), is connected with the flushing filter (9) through the flushing electromagnetic valve (12-2), is connected into the liquid return pipeline (27) through the liquid discharge electromagnetic valve (12-3), and is connected with the air source (13) through the purging electromagnetic valve (12-4).
5. The automatic cleaning system for the precision assembly workshop as claimed in claim 1, wherein: the waste liquid recovery box (26) further comprises a waste liquid valve (26-1) for discharging waste liquid.
6. The precision assembly plant automatic cleaning system according to claim 1, wherein: the solvent granularity detection box (18) has a stirring function, is positioned above the granularity detector (20), has potential energy difference, and is beneficial to the granularity detector (20) to suck a solvent.
7. The automatic cleaning system for the precision assembly workshop as claimed in claim 4, wherein: the plurality of cleaning stations (12) are arranged in parallel.
8. The precision assembly plant automatic cleaning system according to claim 7, wherein: the cleaning stations (12) are cleaned simultaneously, and when the particle size detector (20) detects that conflict occurs, different cleaning stations (12) are automatically sequenced according to the cleaning sequence or the emergency degree, and predicted waiting time is displayed.
9. The method for automatically ultrasonically cleaning and inspecting parts and components by using the automatic cleaning system for a precision assembly plant according to claim 8, comprising the steps of:
step one, starting a super-washing pump (10) to convey a solvent in a clean solvent box (6) to a washing station (12);
step two, opening the super-washing electromagnetic valve (12-1), and closing the super-washing electromagnetic valve (12-1) after the tank of the automatic cleaning device (12-5) reaches a set liquid level;
step three, starting the automatic cleaning device (12-5) for ultrasonic cleaning, and closing the automatic cleaning device (12-5) after the set time is reached;
opening a liquid discharge electromagnetic valve (12-3) and conveying the solvent in the automatic cleaning device (12-5) to a liquid return pipeline (27);
step five, starting a peristaltic pump (16), conveying the solvent in the liquid return pipeline (27) to the solvent granularity detection box (18), and closing after running for a set time;
step six, a solvent return pump (23) is started, the solvent in the return pipeline (27) is conveyed to the solvent storage tank (1), and the solvent return pump (23) is closed after the liquid level in the tank of the automatic cleaning device (12-5) is zero;
step seven, starting a granularity detector (20), automatically extracting the solvent in the solvent granularity detection box (18), and detecting the granularity, wherein if the granularity detection meets the requirement, the cleaning is finished;
otherwise, skipping to the step two for repeated cleaning, and simultaneously opening a two-position three-way electromagnetic valve (29) to convey the solvent in the liquid return pipeline (27) to the solvent storage tank (1); opening a cleaning pipeline electromagnetic valve (14) to convey the solvent in the clean solvent box (6) to a liquid return pipeline (27); starting a peristaltic pump (16) to convey the solvent in the liquid return pipeline (27) to the solvent granularity detection box (18); and then, starting an automatic cleaning mode of the granularity detector (20), automatically extracting the solvent in the solvent granularity detection box (18) for cleaning, closing the cleaning pipeline electromagnetic valve (14), closing the two-position three-way electromagnetic valve (29) and closing the peristaltic pump (16) after the granularity meets the requirement.
10. The method for automatically washing and inspecting parts and components by using the automatic cleaning system for precision assembly plants according to claim 8, comprising the steps of:
step one, starting a washing pump (7) to convey a solvent in a clean solvent box (6) to a cleaning station (12);
step two, aligning a flushing port of the automatic cleaning device (12-5) to a component cleaning part, opening a flushing electromagnetic valve (12-2), and closing after running for a set time;
step three, opening a purging electromagnetic valve (12-4), aiming high-pressure clean air at the cleaning part of the component for blow-drying, and closing after running for a set time;
step four, opening a liquid discharging electromagnetic valve (12-3) and conveying the solvent in the automatic cleaning device (12-5) to a liquid return pipeline (27);
step five, starting a peristaltic pump (16), conveying the solvent in the liquid return pipeline (27) to the solvent granularity detection box (18), and closing after running for a set time;
step six, a solvent return pump (23) is started, the solvent in the return pipeline (27) is conveyed to the solvent storage tank (1), and the solvent return pump (23) is closed after the liquid level in the tank of the automatic cleaning device (12-5) is zero;
step seven, starting a granularity detector (20), automatically extracting the solvent in the solvent granularity detection box (18), and detecting the granularity, wherein if the granularity detection meets the requirement, the cleaning is finished;
otherwise, skipping to the step two for repeated cleaning, and simultaneously opening a two-position three-way electromagnetic valve (29) to convey the solvent in the liquid return pipeline (27) to the solvent storage box (1); opening a cleaning pipeline electromagnetic valve (14) to convey the solvent in the clean solvent box (6) to a liquid return pipeline (27); starting a peristaltic pump (16) to convey the solvent in the liquid return pipeline (27) to the solvent granularity detection box (18); and then, starting an automatic cleaning mode of the granularity detector (20), automatically extracting the solvent in the solvent granularity detection box (18) for cleaning, closing the cleaning pipeline electromagnetic valve (14), closing the two-position three-way electromagnetic valve (29) and closing the peristaltic pump (16) after the granularity meets the requirement.
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