CN117849895A - Cavity foreign matter detection device - Google Patents
Cavity foreign matter detection device Download PDFInfo
- Publication number
- CN117849895A CN117849895A CN202311794152.9A CN202311794152A CN117849895A CN 117849895 A CN117849895 A CN 117849895A CN 202311794152 A CN202311794152 A CN 202311794152A CN 117849895 A CN117849895 A CN 117849895A
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- liquid
- liquid level
- cavity
- foreign matter
- connector
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- 238000001514 detection method Methods 0.000 title claims abstract description 53
- 239000007788 liquid Substances 0.000 claims abstract description 173
- 238000002347 injection Methods 0.000 claims abstract description 55
- 239000007924 injection Substances 0.000 claims abstract description 55
- 230000007246 mechanism Effects 0.000 claims abstract description 51
- 238000012360 testing method Methods 0.000 claims description 21
- 230000008859 change Effects 0.000 abstract description 10
- 238000013461 design Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V9/00—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a cavity foreign matter detection device, which belongs to the technical field of cavity detection and comprises a liquid injection mechanism, a tooling mechanism and a liquid level detection mechanism, wherein the tooling mechanism comprises a tooling cover, a connector and a liquid bag, the connector is arranged in the tooling cover, a liquid injection part of the connector is connected with an output end of the liquid injection mechanism, and a liquid discharge part is connected with an input end of the liquid level detection mechanism; the liquid bag is arranged at the lower side of the connector, and the liquid injection part and the liquid discharge part of the connector are respectively communicated with the inside of the liquid bag; the lower side of the tool cover is provided with a joint part of the workpiece. Converting the volume change of the liquid in the liquid sac into the liquid level change of the discharged liquid so as to determine whether foreign matters exist in the cavity; simple structure, reasonable design and convenient use.
Description
Technical Field
The invention relates to the technical field of cavity detection, in particular to a cavity foreign matter detection device.
Background
In the cavity processing and forming process, under the condition of numerous composite factors such as the existence of material impurities and the interference of external environment, the occurrence of defects in the cavity is unavoidable, for example, foreign matters are generated and remained in the cavity, and if the foreign matters are not cleaned in time, the foreign matters tend to bring great harm to the safe and reliable operation of the subsequent cavity and influence the subsequent process.
The difficulty of manual identification foreign matter is great, and especially the condition that the inside foreign matter of cavity is small is difficult to realize through the mode of illumination detection. In order to effectively identify the foreign matters in the cavity, it is highly desirable to design a device for detecting the foreign matters in the cavity.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides a cavity foreign matter detection device, which detects the volume of a cavity by injecting liquid into a liquid sac so as to judge whether the cavity has foreign matters or not.
The invention discloses a cavity foreign matter detection device, which comprises a liquid injection mechanism, a tooling mechanism and a liquid level detection mechanism, wherein the tooling mechanism comprises a tooling cover, a connector and a liquid bag, the connector is arranged in the tooling cover, a liquid injection part of the connector is connected with the output end of the liquid injection mechanism, and a liquid discharge part is connected with the input end of the liquid level detection mechanism; the liquid bag is arranged at the lower side of the connector, and the liquid injection part and the liquid discharge part of the connector are respectively communicated with the inside of the liquid bag; the lower side of the tool cover is provided with a joint part of the workpiece.
Preferably, the connector is installed in a tool cover through a fixing nut, and a vent hole leading to the workpiece cavity is formed in the tool cover; the workpiece is detachably arranged at the joint part of the tool cover.
Preferably, the tip of the injection member extends towards the bottom of the sac.
Preferably, the liquid level detection mechanism comprises a liquid level detection tube and at least one liquid level sensor, wherein the liquid level sensor is arranged on the liquid level detection tube, and one end of the liquid level detection tube is connected with the liquid draining piece; the liquid level test tube adopts a capillary tube.
Preferably, the liquid level detection mechanism further comprises a first one-way valve and a second one-way valve, one end of the liquid level detection tube is connected with the liquid discharging part through a first branch pipe and a second branch pipe respectively, the first one-way valve is arranged on the first branch pipe, the second one-way valve is arranged on the second branch pipe, and the flowing directions of the first one-way valve and the second one-way valve are opposite.
Preferably, the device further comprises a pressure control device, wherein the pressure control device comprises a pressure reducing valve, and one end of the pressure reducing valve is connected with the other end of the liquid level test tube.
Preferably, the pressure control device further comprises a solenoid valve or a pressure release valve, and the solenoid valve is arranged between the pressure release valve and the liquid level test tube; the pressure release valve is connected with the other end of the liquid level test tube.
Preferably, the liquid injection mechanism comprises a servo motor, a ball screw, a pressing plate and an injection cylinder, wherein the output end of the servo motor is connected with the ball screw through a coupler, a nut matched with the ball screw is arranged on the pressing plate, an injection piece of the injection cylinder is arranged on the pressing plate, and the output end of the injection piece is connected with the liquid injection piece.
Preferably, the liquid injection mechanism further comprises a base, the servo motor is fixed on one side of the base, and the injection cylinder is fixed on the other side of the base through a pressing plate.
Preferably, the base is also provided with a guide rod parallel to the ball screw, the pressing plate is also provided with a guide ring matched with the guide rod, and the output end of the injection cylinder is connected with the injection piece through a liquid inlet pipe; the liquid draining piece is connected with the liquid level detection mechanism through a liquid draining pipe.
Compared with the prior art, the invention has the beneficial effects that: converting the volume change of the liquid in the liquid sac into the liquid level change of the discharged liquid so as to determine whether foreign matters exist in the cavity; simple structure, reasonable design and convenient use.
Drawings
FIG. 1 is a perspective view of a cavity foreign matter detection device of the present invention;
FIG. 2 is a front view of the cavity foreign matter detection device;
FIG. 3 is a schematic view of the structure of the liquid injection mechanism;
FIG. 4 is a schematic structural view of the tooling mechanism;
FIG. 5 is a cross-sectional view of the tooling mechanism;
FIG. 6 is a schematic structural view of the connector;
fig. 7 is a schematic structural view of the pressure control mechanism.
The marks in the figure: 1 liquid injection mechanism, 11 base, 13 liquid inlet pipe, 14 servo motor, 15 coupler, 16 ball screw, 17 pressing plate, 171 guide rod, 172 guide ring, 173 nut, 174 injection piece, 18 injection cylinder, 19 pressing plate, 2 tool mechanism, 21 connector, 211 liquid injection piece, 212 liquid discharge piece, 22 fixing nut, 23 tool cover, 24 liquid bag, 3 pressure control mechanism, 31 pressure reducing valve, 32 electromagnetic valve,
4 liquid level detection mechanism, 41 fluid-discharge pipe, 43 first check valve, 44 second check valve, 46 displacement sensor, 47 liquid level detection tube, 48 first branch pipe, 49 second branch pipe, 5 work piece, 51 cavity.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention is described in further detail below with reference to the attached drawing figures:
1-7, a cavity foreign matter detection device comprises a liquid injection mechanism 1, a tooling mechanism 2 and a liquid level detection mechanism 4, wherein the tooling mechanism 2 comprises a tooling cover 23, a connector 21 and a liquid bag 24, the connector 21 is installed in the tooling cover 23, a liquid injection piece 211 of the connector 21 is connected with the output end of the liquid injection mechanism 1, and a liquid discharge piece 212 is connected with the input end of the liquid level detection mechanism 4; the liquid bag 24 is arranged at the lower side of the connector 21, and the liquid injection part 211 and the liquid discharge part 212 of the connector 21 are respectively communicated with the inside of the liquid bag 24; the lower side of the tool cover 23 is provided with a joint part of the workpiece 5.
Converting the volume change of the liquid in the liquid bag 24 in the cavity 51 into the liquid level change of the discharged liquid to determine whether foreign matters exist in the cavity; simple structure, reasonable design and convenient use.
As shown in fig. 5, when the work 5 is attached to the joint, the liquid bladder 24 is filled with a fixed volume of liquid V1 into the liquid bladder 24 by the liquid filling mechanism 1 in the cavity 51 of the work 5, the liquid bladder 24 is inflated to cover the entire cavity 51, the volume V2 of the liquid discharged from the liquid bladder 24 is detected by the liquid level detecting mechanism 4, and the volume V3 of the inflated liquid bladder 24 is expressed as: v2=v1-V3. V3 is used as the volume of the cavity, compared with the standard component, V3 of the workpiece is a fixed value, when foreign matters exist in the cavity, V3 is reduced, V2 is increased, and whether the foreign matters exist in the cavity can be judged by detecting the volume of discharged liquid; the qualitative or quantitative cavity foreign matter detection is convenient, and the automatic detection of the cavity foreign matter is facilitated.
More specifically, a connection board may be further disposed on the upper side of the tooling cover 23, and the connector 21 is fixed on the connection board. The liquid bag 24 is pressed on the connector 21 by the tool cover 23, the tool cover 23 presses the liquid bag 24, then the sealing ring is sleeved on the built-in connector, and then the fixing nut 22 is connected with the connector 21 to tightly seal the liquid bag 24.
As shown in fig. 4-5, the connector 21 is mounted in the tool cover 23 through the fixing nut 22, a vent hole leading to the cavity 51 of the workpiece 5 is arranged on the tool cover 23, and when the liquid bag 24 is inflated, the cavity 51 is exhausted; the workpiece 5 is detachably mounted at the joint part of the tool cover 23, and can be jointed in a threaded mode or a buckling mode, and the specific jointing mode can be designed according to the structure of the workpiece.
More specifically, the joint may be provided with a seal. The tip of the filling member 211 extends toward the bottom of the sac 24. The discharge of the gas in the liquid bag 24 is facilitated, and the detection accuracy is improved.
The liquid level detection mechanism can adopt a scale method or a liquid level sensor for detection.
As shown in fig. 1, 2 and 7, the liquid level detecting mechanism 4 includes a liquid level detecting tube 47 and at least one liquid level sensor 46, the liquid level sensor 46 is disposed on the liquid level detecting tube 47, and one end of the liquid level detecting tube 47 is connected to the liquid drain 212. The provision of one or more level sensors 46 at respective detection thresholds facilitates automated detection, e.g., one level sensor 46 is provided at a level threshold of the standard, and another level sensor 46 is provided at a level threshold of the different item. The workpiece liquid level is determined to be free of foreign matter in the cavity when the liquid level is between the two liquid level threshold values, and the foreign matter is determined to be in the cavity when the two liquid level sensors 46 detect the liquid level change signals.
Wherein, capillary tube can be adopted for the liquid level test tube 47 to improve the detection precision.
The liquid level detection mechanism 4 may also be provided with a first check valve 43 and a second check valve 44. One end of the liquid level test tube 47 is connected with the liquid draining member 212 through a first branch pipe 48 and a second branch pipe 49 respectively, the first check valve 43 is arranged on the first branch pipe 48, the second check valve 44 is arranged on the second branch pipe 49, and the flowing directions of the first check valve 43 and the second check valve 44 are opposite, namely forward and reverse. The first check valve 43 and the second check valve 44 having opposite flow directions prevent residual gas in the liquid in the lower drain pipe 41 from affecting detection. The drain 212 is connected to the liquid level detection mechanism 4 via a drain pipe 41.
The invention can also be provided with a pressure control device 3 at the end of the liquid level test tube 47: the pressure control device 3 comprises a pressure reducing valve 31, one end of the pressure reducing valve 31 is connected with the other end of the liquid level test tube 47, and is used for maintaining the air pressure of the liquid level test tube 47, maintaining the tension of the liquid bag 24 and ensuring that the liquid bag 24 can be fully inflated. Wherein, the pressure reducing valve 31 is provided with a high-pressure gas or low-pressure gas supply source at the upstream for providing a pressure valve for the liquid level test tube 24. The solenoid valve 32 employs a pressure reducing valve with a reverse flow function to maintain a constant air pressure.
More specifically, the pressure control device 3 further comprises a solenoid valve 32 or a pressure relief valve, the solenoid valve 32 being arranged between the pressure relief valve 31 and the liquid level measuring tube 47. The pressure relief valve is connected with the other end of the liquid level test tube 47, and the pressure relief valve is matched with the pressure relief valve to keep the air pressure in the liquid level test tube 47 stable. The air pressure in the liquid level test tube 47 rises in the liquid injection process, and the air pressure in the liquid level test tube 47 falls in the recovery process of the liquid injection mechanism 1.
Referring to fig. 3, the injection mechanism 1 includes a servo motor 14, a ball screw 16, a pressing plate 17, and an injection tube 18, wherein an output end of the servo motor 14 is connected with the ball screw 16 through a coupling 15, a nut 173 matched with the ball screw 16 is disposed on the pressing plate 17, an injection member 174 of the injection tube 18 is mounted on the pressing plate 17, and an output end of the injection member 174 is connected with an injection member 211.
The injection member 174 of the syringe 18 is reciprocated by the servo motor 14 to inject or suck back fluid into the downstream bladder 24. The servo motor 14 can precisely control the volume of the injected liquid.
More specifically, the liquid injection mechanism 1 further includes a base 11, the servo motor 14 is fixed on one side of the base 11, and the syringe 18 is fixed on the other side of the base 11 through a pressing plate 19. The base 11 is further provided with a guide rod 171 parallel to the ball screw 16, the pressing plate 17 is further provided with a guide ring 172 matched with the guide rod 171, and the output end of the injection tube 18 is connected with the injection member 211 through the liquid inlet tube 13.
The liquid bag 24 is inflated under relatively constant air pressure, is tightly attached to the inner wall of the cavity 51, and redundant liquid enters the liquid discharge pipe 41 and the liquid level test tube 47, and the liquid level sensor detects the change of the liquid level test tube to determine whether foreign matters exist in the cavity. The invention has simple structure, reasonable design and convenient use, and converts the volume change of the liquid in the liquid bag 24 in the cavity 51 into the change of the liquid level test tube 47 to determine whether foreign matters exist in the cavity. Whether the inside of the irregular cavity has foreign matters can be well detected, and the cavities with different volumes can be compatible and applicable according to components such as the adjusting liquid bag, the liquid injection pipe and the like.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The cavity foreign matter detection device is characterized by comprising a liquid injection mechanism (1), a tooling mechanism (2) and a liquid level detection mechanism (4),
the tooling mechanism (2) comprises a tooling cover (23), a connector (21) and a liquid bag (24),
the connector (21) is arranged in the tool cover (23), a liquid injection piece (211) of the connector (21) is connected with the output end of the liquid injection mechanism (1), and a liquid discharge piece (212) is connected with the input end of the liquid level detection mechanism (4);
the liquid bag (24) is arranged at the lower side of the connector (21), and a liquid injection piece (211) and a liquid discharge piece (212) of the connector (21) are respectively communicated with the inside of the liquid bag (24);
the lower side of the tool cover (23) is provided with a joint part of a workpiece.
2. The cavity foreign matter detection device according to claim 1, wherein the connector (21) is mounted in the tool cover (23) by a fixing nut (22),
the tool cover (23) is provided with a vent hole leading to the cavity (51) of the workpiece (5);
the workpiece (5) is detachably mounted at the joint part of the tool cover (23).
3. The cavity foreign matter detection device according to claim 1, wherein a tip of the liquid injection member (211) extends toward a bottom of the liquid bag (24).
4. The cavity foreign matter detection device according to claim 1, characterized in that the liquid level detection mechanism (4) includes a liquid level detection tube (47) and at least one liquid level sensor (46), the liquid level sensor (46) being provided on the liquid level detection tube (47),
one end of the liquid level test tube (47) is connected with the liquid draining piece (212);
the liquid level test tube (47) adopts a capillary tube.
5. The cavity foreign matter detection device according to claim 4, wherein the liquid level detection mechanism (4) further includes a first check valve (43) and a second check valve (44),
one end of the liquid level test tube (47) is connected with the liquid draining piece (212) through a first branch tube (48) and a second branch tube (49) respectively,
the first one-way valve (43) is arranged on the first branch pipe (48), the second one-way valve (44) is arranged on the second branch pipe (49),
the first check valve (43) and the second check valve (44) have opposite flow directions.
6. The cavity foreign matter detection device according to claim 4, further comprising a pressure control device (3), the pressure control device (3) including a pressure reducing valve (31), one end of the pressure reducing valve (31) being connected with the other end of the liquid level measuring tube (47),
the pressure reducing valve (31) has a reverse flow function.
7. The cavity foreign matter detection device according to claim 6, wherein the pressure control device (3) further includes a solenoid valve (32) or a relief valve,
the electromagnetic valve (32) is arranged between the pressure reducing valve (31) and the liquid level measuring tube (47);
the pressure release valve is connected with the other end of the liquid level test tube (47).
8. The cavity foreign matter detection device according to claim 1, wherein the liquid injection mechanism (1) includes a servo motor (14), a ball screw (16), a pressing plate (17) and a syringe (18),
the output end of the servo motor (14) is connected with the ball screw (16) through a coupler (15), a nut (173) matched with the ball screw (16) is arranged on the pressing plate (17), an injection piece (174) of the injection cylinder (18) is arranged on the pressing plate (17), and the output end of the injection piece (174) is connected with the liquid injection piece (211).
9. The cavity foreign matter detection device according to claim 8, wherein the liquid injection mechanism (1) further comprises a base (11), the servo motor (14) is fixed on one side of the base (11), and the injection cylinder (18) is fixed on the other side of the base (11) through a pressing plate (19).
10. The device for detecting the foreign matters in the cavity according to claim 9, characterized in that a guide rod (171) parallel to the ball screw (16) is further arranged on the base (11), a guide ring (172) matched with the guide rod (171) is further arranged on the pressing plate (17),
the output end of the injection cylinder (18) is connected with the liquid injection piece (211) through a liquid inlet pipe (13);
the liquid draining member (212) is connected with the liquid level detecting mechanism (4) through a liquid draining pipe (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311794152.9A CN117849895A (en) | 2023-12-25 | 2023-12-25 | Cavity foreign matter detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311794152.9A CN117849895A (en) | 2023-12-25 | 2023-12-25 | Cavity foreign matter detection device |
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| Publication Number | Publication Date |
|---|---|
| CN117849895A true CN117849895A (en) | 2024-04-09 |
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ID=90541173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311794152.9A Pending CN117849895A (en) | 2023-12-25 | 2023-12-25 | Cavity foreign matter detection device |
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| CN (1) | CN117849895A (en) |
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