CN111347667A - Preparation device and preparation method of annular sealing structure - Google Patents
Preparation device and preparation method of annular sealing structure Download PDFInfo
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- CN111347667A CN111347667A CN202010257553.0A CN202010257553A CN111347667A CN 111347667 A CN111347667 A CN 111347667A CN 202010257553 A CN202010257553 A CN 202010257553A CN 111347667 A CN111347667 A CN 111347667A
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- 238000007789 sealing Methods 0.000 title claims abstract description 49
- 238000002360 preparation method Methods 0.000 title claims abstract description 46
- 239000007788 liquid Substances 0.000 claims abstract description 265
- 238000003860 storage Methods 0.000 claims abstract description 80
- 238000002347 injection Methods 0.000 claims abstract description 76
- 239000007924 injection Substances 0.000 claims abstract description 76
- 238000001723 curing Methods 0.000 claims abstract description 57
- 238000000520 microinjection Methods 0.000 claims abstract description 43
- 239000000463 material Substances 0.000 claims abstract description 34
- 238000000016 photochemical curing Methods 0.000 claims abstract description 19
- 239000007787 solid Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 10
- 238000002955 isolation Methods 0.000 claims description 9
- 229910000746 Structural steel Inorganic materials 0.000 claims description 8
- 230000007547 defect Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 3
- 235000000396 iron Nutrition 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints
- B29L2031/265—Packings, Gaskets
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
Abstract
The invention discloses a preparation device and a preparation method of an annular sealing structure, wherein a liquid light-curing material is injected into a liquid storage box filled with viscous liquid by using an injection needle cylinder filled with the light-curing material, and the micro-injection pump controls the liquid injection speed and the liquid injection amount of the light-curing material; before preparation, setting the position of the liquid outlet needle head according to the size of a circular ring to be prepared; before the injection syringe injects the light-cured material into the liquid storage box filled with viscous liquid, the three-dimensional macro mobile platform and the liquid storage box fixed on the three-dimensional macro mobile platform should be rotated to reach a constant speed; and after the photocuring material filled with the viscous liquid in the liquid storage box forms a liquid ring, stopping the electric rotating table from rotating, stopping the liquid injection of the micro-injection pump, and rapidly moving the liquid outlet needle to the outside of the viscous liquid. And rapidly curing the liquid ring through the ultraviolet curing lamp to obtain the annular sealing structure with a smooth curved surface.
Description
Technical Field
The invention relates to the technical field of industrial manufacturing, in particular to a preparation device and a preparation method of an annular sealing structure.
Background
The annular sealing structure is an annular structure with a circular cross section, and is widely applied to material preparation, food processing and biomedicine due to the regular appearance and excellent structural characteristics, such as common O-shaped rubber rings, sweet ring bread, annular tablets and the like. The current common method for preparing the annular sealing structure is a die forming method, namely an upper die and a lower die are adopted for die forming, and the method has the advantages of high yield, stable product performance and the like. However, the annular sealing structure prepared by the method can form a parting line at the joint of the die, so that the circular section is not smooth, a process of removing the parting line needs to be added in the processing process, the processing cost is increased, and the production efficiency is reduced.
In order to solve this problem, a flawless circular cross-section ring structure is formed. We propose a novel apparatus and method for preparing an annular seal structure by combining liquid-liquid printing and photocuring techniques. The method utilizes two immiscible liquids to print the liquid ring structure under the rotary motion, and the photo-curing material in the liquid ring can be quickly cured under the irradiation of a light source with a specified waveband, so that the solid annular sealing structure with uniform size and controllable precision can be obtained, the preparation cost is greatly reduced, the operation is simple, and meanwhile, the prepared annular sealing structure has the advantages of high precision, stable performance and the like, and can be widely popularized in the large-scale preparation of the annular sealing structure.
Disclosure of Invention
The invention aims to provide a device and a method for preparing an annular sealing structure, and aims to solve the technical problem that in the prior art, parting lines are formed at seams of dies in a die forming method for preparing the annular sealing structure, so that the circular section is not smooth.
In order to achieve the purpose, the annular sealing structure preparation device comprises a fixed bottom plate, a liquid injection assembly, a three-dimensional fine adjustment platform assembly, a rotating platform assembly, a light curing preparation assembly and an image detection assembly; the liquid injection assembly comprises a micro injection pump, an injection needle cylinder and a hose, the micro injection pump is arranged on the fixed base plate, an installation groove is formed in the micro injection pump, the injection needle cylinder is fixedly connected with the micro injection pump and is positioned in the installation groove, the hose is communicated with a liquid outlet of the injection needle cylinder, the three-dimensional fine adjustment platform assembly comprises a three-dimensional macro moving platform, a needle head fixing frame and a liquid outlet needle head, the three-dimensional macro moving platform is arranged on the fixed base plate, one end of the needle head fixing frame is fixedly connected with the three-dimensional macro moving platform, the other end of the needle head fixing frame is in transition fit with the liquid outlet needle head, and the liquid outlet needle head is communicated with one end, far away from the injection needle cylinder, of the;
the rotary platform assembly comprises an electric rotary table, a liquid storage box clamp and a liquid storage box, the electric rotary table is arranged on the fixed base plate, the liquid storage box clamp is detachably connected with the electric rotary table, the liquid storage box clamp clamps the liquid storage box, and the liquid storage box is positioned right below the liquid outlet needle head;
the light curing preparation assembly comprises an ultraviolet light curing machine, a lamp holder fixing clamp and an ultraviolet light curing lamp, wherein the ultraviolet light curing machine and the lamp holder fixing clamp are respectively arranged on the fixing bottom plate, and the ultraviolet light curing lamp is clamped by the lamp holder fixing clamp;
the image detection assembly comprises a support, an LED backlight source and a high-speed camera, the support is detachably connected with the fixed base plate, the LED backlight source is arranged below the three-dimensional macro mobile platform, the high-speed camera is fixedly connected with the support, and the high-speed camera is located right above the liquid storage box.
The liquid injection assembly comprises a fixing piece, a clamping piece and a sliding block, one end of the fixing piece penetrates through the clamping piece and is in threaded connection with the micro-injection pump, and the clamping piece clamps the injection needle cylinder; the slider with the micro-syringe pump sliding connection, the slider is through arranging in the inside syringe pump driver of micro-syringe pump drives, the slider is located one side of holder, and with the one end laminating of syringe.
The three-dimensional fine adjustment platform assembly further comprises a platform support, the platform support is detachably connected with the fixed base plate, a groove and a plurality of positioning vibration isolation plates are arranged on the platform support, and each positioning vibration isolation plate is respectively located below the three-dimensional micro-distance moving platform and the electric rotating platform.
The three-dimensional macro moving platform is provided with an X-axis differential head, a Y-axis differential head and a Z-axis differential head which are used for positioning the liquid outlet needle head.
The liquid storage box clamp is provided with a first clamping ring portion, a clamping portion and an extending portion, two ends of the first clamping ring portion are fixedly connected with the clamping portion respectively, each clamping portion is far away from one end of the first clamping ring portion and is fixedly connected with the extending portion respectively, and each extending portion is provided with a through hole for a screw to penetrate through.
The lamp holder fixing clamp is provided with a second clamping ring part and support lugs, the support lugs are fixedly connected with the second clamping ring part respectively and are located at two ends of the second clamping ring part respectively, and each support lug is provided with a through hole for a screw to penetrate through.
The image detection assembly further comprises angle irons, and two ends of each angle iron are respectively in threaded connection with the support and the fixed base plate through screws.
The invention also provides a preparation method of the annular sealing structure, which comprises the following steps:
installing an annular sealing structure preparation device, setting the rotation speed of the electric rotating table, and setting the liquid injection rate and the liquid injection amount of the micro-injection pump;
adding external viscous liquid into the liquid storage box, standing to remove air bubbles in the viscous liquid in the liquid storage box, placing the liquid storage box filled with the viscous liquid on the electric rotating table and fixing by using the liquid storage box clamp;
adding a photocuring material into the injection needle cylinder, installing the injection needle cylinder on the micro-injection pump, connecting the hose and the liquid outlet needle, exhausting air in the hose and the liquid outlet needle, filling the hose and the liquid outlet needle with the photocuring material, and fixing the liquid outlet needle on the three-dimensional macro-moving platform;
opening the LED backlight source and the high-speed camera, and adjusting the intensity of light of the LED backlight source, the focal length and the aperture of the high-speed camera, so that a computer connected with the high-speed camera can shoot a clear liquid ring structure;
turning on the power supply of the electric rotating platform, and controlling the liquid storage box filled with the viscous liquid to rotate and reach a constant speed;
inserting the liquid outlet needle head into the viscous liquid in the liquid storage box by using the three-dimensional macro mobile platform;
starting the micro-injection pump, uniformly and continuously extruding the light-cured material into the viscous liquid of the liquid storage box through the hose and the liquid outlet needle head by the micro-injection pump according to a preset liquid injection rate and a preset liquid injection amount, and forming a liquid ring with a smooth curved surface under the condition of liquid injection and rotation;
recording the forming process of the liquid ring by using the high-speed camera, observing the interface appearance of the liquid ring and ensuring that the interface is not deformed;
after a liquid ring is formed, the micro-injection pump is closed, and the liquid outlet needle head is quickly moved out of the viscous liquid of the liquid storage box by using the three-dimensional microspur mobile platform;
closing the electric rotating table, opening the ultraviolet curing machine, and rapidly curing the liquid ring by using the ultraviolet curing lamp so as to form a solid annular sealing structure;
and taking out the solid annular sealing structure after the preparation is finished, shooting an image of the solid annular sealing structure by using the high-speed camera, detecting whether the inside of the solid ring has defects or not, and measuring the size of the solid annular sealing structure by using image processing software.
The invention has the beneficial effects that: injecting a liquid light-curing material into the liquid storage box filled with viscous liquid by using the injection syringe filled with the light-curing material, and controlling the injection rate and the injection amount of the light-curing material by using the micro-injection pump; the injection needle cylinder is connected with the liquid outlet needle through the hose, the liquid outlet needle is fixedly connected with the needle fixing frame of the three-dimensional macro moving platform, and the position of the liquid outlet needle is set according to the size of a liquid ring to be prepared before preparation so as to generate liquid rings with different sizes; the liquid storage box is fixed on the electric rotating platform through the liquid storage box clamp, and before the injection needle cylinder injects the light-cured material into the liquid storage box filled with viscous liquid, the three-dimensional macro moving platform and the liquid storage box fixed on the three-dimensional macro moving platform should rotate and reach a constant speed; and after the photocuring material filled with the viscous liquid in the liquid storage box forms a liquid ring, stopping the electric rotating table from rotating, stopping the liquid injection of the micro-injection pump, and rapidly moving the liquid outlet needle to the outside of the viscous liquid. And opening the ultraviolet curing machine, and rapidly curing the liquid ring through the ultraviolet curing lamp to obtain the annular sealing structure with a smooth curved surface.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of an annular seal structure preparation apparatus of the present invention.
Fig. 2 is a side view of an annular seal structure preparation apparatus of the present invention.
Fig. 3 is an enlarged view of a part of the structure of the annular seal structure preparation apparatus of the present invention.
Fig. 4 is a schematic structural diagram of the three-dimensional macro mobile platform of the present invention.
Fig. 5 is a schematic structural view of the electric turntable of the present invention.
Fig. 6 is a schematic structural view of the platform support of the present invention.
Fig. 7 is a schematic view of the structure of the cap holding jig of the present invention.
Fig. 8 is a flowchart of a method of manufacturing the annular seal structure of the invention.
10-fixed bottom plate, 20-liquid injection component, 21-micro injection pump, 211-mounting groove, 212-clamping piece, 213-fixing piece, 214-sliding block, 22-injection syringe, 23-hose, 30-three-dimensional fine adjustment platform component, 31-three-dimensional micro-distance moving platform, 311-X axis differential head, 312-Y axis differential head, 313-Z axis differential head, 32-needle head fixing frame, 33-platform support, 331-groove, 332-positioning vibration isolation plate, 34-liquid outlet needle head, 40-rotating platform component, 41-electric rotating platform, 42-liquid storage box clamp, 421-first clamping ring part, 422-clamping part, 423-extending part, 424-through hole, 43-liquid storage box, 50-light curing preparation component, 51-ultraviolet curing machine, 52-lamp holder fixing clamp, 521-second clamping ring part, 522-support lug, 523-through hole, 53-ultraviolet curing lamp, 60-image detection component, 61-bracket, 62-high speed camera, 63-angle iron and 64-LED backlight source.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to 7, the present invention provides an apparatus for preparing an annular sealing structure, including a fixed base plate 10, a liquid injection assembly 20, a three-dimensional fine adjustment platform assembly 30, a rotary platform assembly 40, a light curing preparation assembly 50 and an image detection assembly 60; the liquid injection assembly 20 comprises a micro-injection pump 21, an injection needle cylinder 22 and a hose 23, the micro-injection pump 21 is arranged on the fixed base plate 10, an installation groove 211 is formed in the micro-injection pump 21, the injection needle cylinder 22 is fixedly connected with the micro-injection pump 21 and is positioned in the installation groove 211, the hose 23 is communicated with a liquid outlet of the injection needle cylinder 22, the three-dimensional fine adjustment platform assembly 30 comprises a three-dimensional macro moving platform 31, a needle fixing frame 32 and a liquid outlet needle 34, the three-dimensional macro moving platform 31 is arranged on the fixed base plate 10, one end of the needle fixing frame 32 is fixedly connected with the three-dimensional macro moving platform 31, the other end of the needle fixing frame 32 is in transition fit with the liquid outlet needle 34, and the liquid outlet needle 34 is communicated with one end of the hose 23 far away from the injection needle cylinder 22;
the rotating platform assembly 40 comprises an electric rotating platform 41, a liquid storage box clamp 42 and a liquid storage box 43, the electric rotating platform 41 is arranged on the fixed base plate 10, the liquid storage box clamp 42 is detachably connected with the electric rotating platform 41, the liquid storage box clamp 42 clamps the liquid storage box 43, and the liquid storage box 43 is positioned right below the liquid outlet needle 34;
the photocuring preparation assembly 50 comprises an ultraviolet curing machine 51, a lamp holder fixing clamp 52 and an ultraviolet curing lamp 53, wherein the ultraviolet curing machine 51 and the lamp holder fixing clamp 52 are respectively arranged on the fixed base plate 10, and the ultraviolet curing lamp 53 is clamped by the lamp holder fixing clamp 52;
the image detection assembly 60 comprises a bracket 61, an LED backlight source 64 and a high-speed camera 62, wherein the bracket 61 is detachably connected with the fixed base plate 10, the LED backlight source 64 is disposed below the three-dimensional macro moving platform 31, the high-speed camera 62 is fixedly connected with the bracket 61, and the high-speed camera 62 is located right above the liquid storage box 43.
In this embodiment, the liquid injection assembly 20 includes a micro injection pump 21, an injection syringe 22 and a hose 23, wherein the model of the micro injection pump 21 is LSP01-2A, the micro injection pump 21 is disposed on the fixing bottom plate 10, the injection syringe 22 is fixed on the micro injection pump 21, and the light-curing material is injected into the liquid storage box 43 filled with viscous liquid and made of glass through the injection syringe 22 filled with liquid light-curing material, and the injection rate and the injection amount of the light-curing material are controlled by the micro injection pump 21; the syringe 22 is connected with the liquid outlet needle 34 through the hose 23, and the liquid outlet needle 34 is fixed on the needle fixing frame 32 of the three-dimensional macro moving platform 31 with the model number of M1-637-L1. The needle fixing frame 32 is a rigid vertical structure, which can ensure that the outlet needle 34 is vertically inserted into the liquid storage box 43 filled with viscous liquid.
The model of the electric rotating platform 41 is DZPRT100-AS1, the electric rotating platform 41 is driven by a driving motor to rotate, the rotating platform assembly 40 is connected with the liquid storage box clamp 42 through screws, and the liquid storage box 43 is screwed with the liquid storage box clamp 42 to enable a clamping ring of the liquid storage box clamp 42 to contract so AS to achieve the purpose of fixing the liquid storage box 43.
The lamp holder fixing clamp 52 is fixedly connected with the fixing base plate 10 through screws, the ultraviolet curing machine 51 is arranged on the fixing base plate 10, and the ultraviolet curing lamp 53 is screwed with the lamp holder fixing clamp 52 through screws to enable the clamping ring of the lamp holder fixing clamp 52 to shrink so as to fix the ultraviolet curing lamp 53.
Injecting a liquid photo-curing material into the liquid storage box 43 filled with a viscous liquid by using the syringe 22 filled with the photo-curing material, and controlling the injection rate and the injection amount of the photo-curing material by the micro-syringe pump 21; the injection needle cylinder 22 is connected with the liquid outlet needle 34 through the hose 23, the liquid outlet needle 34 is fixed on the needle fixing frame 32 of the three-dimensional macro moving platform 31 through connection, and the position of the liquid outlet needle 34 is set according to the size of a ring to be prepared before preparation so as to generate liquid rings with different sizes; the liquid storage box 43 is fixed on the electric rotating table 41 through the liquid storage box clamp 42, and before the syringe 22 injects the photo-curing material into the liquid storage box 43 filled with viscous liquid, the three-dimensional macro moving platform 31 and the liquid storage box 43 fixed thereon should be rotated to reach a uniform speed; after the photo-curing material in the liquid storage box 43 filled with the viscous liquid forms a liquid ring, the electric rotating table 41 stops rotating, and the micro-injection pump 21 stops injecting liquid, so that the liquid outlet needle 34 is rapidly moved to the outside of the viscous liquid. And opening the ultraviolet curing machine 51, and rapidly curing the liquid ring through the ultraviolet curing lamp 53 to obtain the annular sealing structure with a smooth curved surface.
Further, the liquid injection assembly 20 comprises a fixing member 213, a clamping member 212 and a sliding block 214, wherein one end of the fixing member 213 penetrates through the clamping member 212 and is in threaded connection with the micro-syringe pump 21, and the clamping member 212 clamps the syringe 22; the slider 214 is slidably connected to the micro syringe pump 21, the slider 214 is driven by a syringe pump driver disposed inside the micro syringe pump 21, and the slider 214 is located on one side of the clamping member 212 and attached to one end of the syringe 22.
In this embodiment, the fixing member 213 is a fixing bolt, and one end of the fixing member 213 penetrates the clamping member 212 and is screwed with the micro syringe pump 21, so that the clamping member 212 clamps the syringe 22 and is engaged with the mounting groove 211, thereby fixing the syringe 22 more stably and preventing shaking. Wherein the sliding block 214 is located at one side of the clamping member 212 and is jointed with one end of the syringe 22; the syringe pump driver is located inside the micro syringe pump 21, sets parameters through keys, displays the parameters on a display screen, drives the slider 214 to move, and pushes the syringe 22 to extrude liquid.
Further, the three-dimensional fine adjustment platform assembly 30 further includes a platform support 33, the platform support 33 is detachably connected to the fixing base plate 10, the platform support 33 has a groove 331 and a plurality of positioning vibration isolation plates 332 thereon, and each of the positioning vibration isolation plates 332 is respectively located below the three-dimensional macro moving platform 31 and the electric rotating platform 41.
In this embodiment, the three-dimensional macro moving platform 31 and the electric rotating platform 41 are respectively connected to the platform support 33 by screws, and then the platform support 33 is further connected to the fixing base plate 10 by screws, and the platform support 33 is provided with a plurality of positioning vibration isolation plates 332, and each positioning vibration isolation plate 332 is respectively located below the three-dimensional macro moving platform 31 and the electric rotating platform 41, so as to achieve the damping effect on the movement of the three-dimensional macro moving platform 31 and the electric rotating platform 41, so that the annular sealing structure manufacturing apparatus is more stable in the process of manufacturing the sealing ring, and the quality of the manufactured solid sealing ring is prevented from being affected.
Further, the three-dimensional macro moving platform 31 is provided with an X-axis differential head 311, a Y-axis differential head 312 and a Z-axis differential head 313 for positioning the outlet needle 34.
In this embodiment, the arrangement of the X-axis differential head 311, the Y-axis differential head 312, and the Z-axis differential head 313 in the three-dimensional macro moving platform 31 is used to position the liquid outlet needle 34, so as to regulate the central diameter of the generated liquid ring. The thickness of the liquid ring can be realized by adjusting the liquid injection rate and the liquid injection amount, and the purpose of accurately controlling the size of the liquid ring is further achieved.
Further, the liquid storage box clamp 42 is provided with a first clamping ring portion 421, a clamping portion 422 and an extending portion 423, two ends of the first clamping ring portion 421 are respectively and fixedly connected with the clamping portion 422, one end of each clamping portion 422, which is far away from the first clamping ring portion 421, is respectively and fixedly connected with the extending portion 423, and each extending portion 423 is provided with a through hole 424 for a screw to penetrate through.
In this embodiment, the first ring portion 421, the clamping portion 422, and the extension portion 423 are integrally formed, and the reservoir 43 is placed between clamping structures defined by the first ring portion 421, the clamping portion 422, and the extension portion 423, and then threaded screws are inserted through the through holes 424 and screwed with nuts, so as to firmly clamp the reservoir 43 and facilitate detachment.
Further, the lamp holder fixing clamp 52 has a second collar portion 521 and support lugs 522, the support lugs 522 are respectively and fixedly connected with the second collar portion 521 and respectively located at two ends of the second collar portion 521, and each support lug 522 has a through hole 523 for a screw to pass through.
In this embodiment, the second collar portion 521 and the support lug 522 are integrally formed, the ultraviolet curing lamp 53 is placed between the tightening structures formed by the second collar portion 521 and the support lug 522, and then the screw with threads penetrates through the through hole 523 and is connected with the nut through threads, so that the ultraviolet curing lamp 53 is firmly clamped and is also convenient to detach. Wherein the second collar portion 521 is detachably connected to the fixed base plate 10 by a connecting rod.
Further, the image detection assembly 60 further includes an angle iron 63, and two ends of the angle iron 63 are respectively connected with the bracket 61 and the fixed base plate 10 through screws and threads.
In the present embodiment, the bracket 61 and the angle iron 63 are made of aluminum, wherein the angle iron 63 is connected to the fixing base plate 10 by screws, and the angle iron 63 is fixed to the bracket 61 by screws, so as to increase the structural stability.
Referring to fig. 8, the present invention further provides a method for manufacturing an annular sealing structure, including a device for manufacturing an annular sealing structure, the method including the steps of:
s1: installing an annular sealing structure preparation device, setting the rotation speed of the electric rotating table 41, and simultaneously setting the liquid injection rate and the liquid injection amount of the micro-injection pump 21;
s2: adding external viscous liquid into the liquid storage box 43, standing to remove air bubbles in the viscous liquid in the liquid storage box 43, placing the liquid storage box 43 filled with the viscous liquid on the electric rotating table 41 and fixing by using the liquid storage box clamp 42;
s3: adding a light-cured material into the injection needle cylinder 22, installing the injection needle cylinder 22 on the micro-injection pump 21, connecting the hose 23 and the liquid outlet needle 34, exhausting air in the hose 23 and the liquid outlet needle 34, filling the hose 23 and the liquid outlet needle 34 with the light-cured material, and fixing the liquid outlet needle 34 on the three-dimensional macro moving platform 31;
s4: turning on the LED backlight 64 and the high-speed camera 62, and adjusting the light intensity of the LED backlight 64, the focal length and the aperture of the high-speed camera 62, so that a computer connected with the high-speed camera 62 can shoot a clear liquid ring structure;
s5: turning on the power supply of the electric rotating platform 41, controlling the liquid storage box 43 filled with the viscous liquid to rotate and reach a constant speed;
s6: the liquid outlet needle 34 is inserted into the viscous liquid in the liquid storage box 43 by using the three-dimensional macro moving platform 31;
s7: starting the micro-injection pump 21, and uniformly and continuously extruding the light-cured material into the viscous liquid of the liquid storage box 43 through the hose 23 and the liquid outlet needle 34 by the micro-injection pump 21 according to a preset liquid injection rate and a preset liquid injection amount, so as to form a liquid ring with a smooth curved surface under the condition of liquid injection and rotation;
s8: recording the forming process of the liquid ring by using the high-speed camera 62, observing the interface appearance of the liquid ring and ensuring that the interface is not deformed;
s9: after a liquid ring is formed, the micro-injection pump 21 is closed, and the liquid outlet needle 34 is rapidly moved out of the viscous liquid of the liquid storage box 43 by using the three-dimensional macro moving platform 31;
s10: closing the electric rotating platform 41, opening the ultraviolet curing machine 51, and rapidly curing the liquid ring by using the ultraviolet curing lamp 53 to form a solid annular sealing structure;
s11: and taking out the solid annular sealing structure after the preparation is finished, shooting an image of the solid annular sealing structure by using the high-speed camera 62, detecting whether the inside of the solid ring has defects or not, and measuring the size of the solid annular sealing structure by using image processing software.
Wherein a liquid photo-curing material is injected into the liquid storage box 43 filled with a viscous liquid by using the syringe 22 filled with the photo-curing material, and the injection rate and the injection amount of the photo-curing material are controlled by the micro-syringe pump 21; the injection needle cylinder 22 is connected with the liquid outlet needle 34 through the hose 23, the liquid outlet needle 34 is fixed on the needle fixing frame 32 of the three-dimensional macro moving platform 31 through connection, and the position of the liquid outlet needle 34 is set according to the size of a ring to be prepared before preparation so as to generate liquid rings with different sizes; the liquid storage box 43 is fixed on the electric rotating table 41 through the liquid storage box clamp 42, and before the syringe 22 injects the photo-curing material into the liquid storage box 43 filled with viscous liquid, the three-dimensional macro moving platform 31 and the liquid storage box 43 fixed thereon should be rotated to reach a uniform speed; after the photo-curing material in the liquid storage box 43 filled with the viscous liquid forms a liquid ring, the electric rotating table 41 stops rotating, and the micro-injection pump 21 stops injecting liquid, so that the liquid outlet needle 34 is rapidly moved to the outside of the viscous liquid. And opening the ultraviolet curing machine 51, rapidly curing the liquid ring through the ultraviolet curing lamp 53 to obtain the annular sealing structure with a smooth curved surface, taking out the solid annular sealing structure after preparation is finished, shooting an image of the solid annular sealing structure by using the high-speed camera 62, detecting whether the inside of the ring has defects or not, and measuring the size of the solid annular sealing structure by using image processing software.
In summary, the following steps: a preparation device and a preparation method of an annular sealing structure mainly comprise the following steps: firstly, the electric rotating platform 41 (model: DZPRT100-AS1) and the liquid storage box 43 fixed on the electric rotating platform are rotated to reach a constant speed; fine adjustment in three directions of XYZ is then performed by the three-dimensional macro moving stage 31 to control the central diameter of the liquid ring. And the liquid injection amount is controlled by the micro-injection pump 21 so as to control the volume of the liquid ring, thereby realizing the purpose of accurately controlling the precision of the liquid ring. Finally, the UV ultraviolet curing machine 51 is used for curing the liquid ring rapidly, so that the prepared liquid ring can be rapidly converted into a solid state, and the problem that the liquid ring is deformed due to long curing time is avoided. The system realizes the controllable preparation of the annular sealing structure, avoids the problems of circular section flaws and internal defects in the traditional processing technology, and improves the preparation precision of the annular sealing structure. Liquid rings with different sizes can be obtained by replacing the liquid outlet needle heads 34 with different sizes and adjusting the liquid injection amount and the liquid injection rate, and controllable preparation of the annular sealing structure with uniform size can be realized after solidification; the micro-injection pump 21 is used for controlling the injection amount and the injection rate of the supplied fluid, so that the liquid can be uniformly and continuously extruded to form a uniform liquid ring structure; defects inside the ring are detected by the high speed camera 62 vision system. Therefore, the technical problem that the round section is not smooth due to the fact that parting lines are formed at the seams of the mold in the mold forming method for preparing the annular sealing structure in the prior art is solved.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A device for preparing an annular sealing structure is characterized in that,
the device comprises a fixed bottom plate, a liquid injection assembly, a three-dimensional fine adjustment platform assembly, a rotating platform assembly, a light curing preparation assembly and an image detection assembly; the liquid injection assembly comprises a micro injection pump, an injection needle cylinder and a hose, the micro injection pump is arranged on the fixed base plate, an installation groove is formed in the micro injection pump, the injection needle cylinder is fixedly connected with the micro injection pump and is positioned in the installation groove, the hose is communicated with a liquid outlet of the injection needle cylinder, the three-dimensional fine adjustment platform assembly comprises a three-dimensional macro moving platform, a needle head fixing frame and a liquid outlet needle head, the three-dimensional macro moving platform is arranged on the fixed base plate, one end of the needle head fixing frame is fixedly connected with the three-dimensional macro moving platform, the other end of the needle head fixing frame is in transition fit with the liquid outlet needle head, and the liquid outlet needle head is communicated with one end, far away from the injection needle cylinder, of the;
the rotary platform assembly comprises an electric rotary table, a liquid storage box clamp and a liquid storage box, the electric rotary table is arranged on the fixed base plate, the liquid storage box clamp is detachably connected with the electric rotary table, the liquid storage box clamp clamps the liquid storage box, and the liquid storage box is positioned right below the liquid outlet needle head;
the light curing preparation assembly comprises an ultraviolet light curing machine, a lamp holder fixing clamp and an ultraviolet light curing lamp, wherein the ultraviolet light curing machine and the lamp holder fixing clamp are respectively arranged on the fixing bottom plate, and the ultraviolet light curing lamp is clamped by the lamp holder fixing clamp;
the image detection assembly comprises a support, an LED backlight source and a high-speed camera, the support is detachably connected with the fixed base plate, the LED backlight source is arranged below the three-dimensional macro mobile platform, the high-speed camera is fixedly connected with the support, and the high-speed camera is located right above the liquid storage box.
2. The annular seal structure preparation apparatus of claim 1,
the liquid injection assembly comprises a fixing piece, a clamping piece and a sliding block, one end of the fixing piece penetrates through the clamping piece and is in threaded connection with the micro-injection pump, and the clamping piece clamps the injection needle cylinder; the slider with the micro-syringe pump sliding connection, the slider is through arranging in the inside syringe pump driver of micro-syringe pump drives, the slider is located one side of holder, and with the one end laminating of syringe.
3. The annular seal structure preparation apparatus of claim 1,
the three-dimensional fine adjustment platform assembly further comprises a platform support, the platform support is detachably connected with the fixed base plate, a groove and a plurality of positioning vibration isolation plates are arranged on the platform support, and each positioning vibration isolation plate is respectively located below the three-dimensional micro-distance moving platform and the electric rotating table.
4. The annular seal structure preparation apparatus of claim 3,
the three-dimensional microspur mobile platform is provided with an X-axis differential head, a Y-axis differential head and a Z-axis differential head which are used for positioning the liquid outlet needle head.
5. The annular seal structure preparation apparatus of claim 1,
the liquid storage box clamp is provided with a first clamping ring portion, a clamping portion and an extension portion, two ends of the first clamping ring portion are fixedly connected with the clamping portion respectively, and each clamping portion is far away from one end of the first clamping ring portion and is fixedly connected with the extension portion respectively, and each through hole for a screw to penetrate through is formed in the extension portion.
6. The annular seal structure preparation apparatus of claim 1,
the lamp holder fixing clamp is provided with a second clamping ring part and support lugs, the support lugs are fixedly connected with the second clamping ring part respectively and are located at two ends of the second clamping ring part respectively, and each support lug is provided with a through hole for a screw to penetrate through.
7. The annular seal structure preparation apparatus of claim 1,
the image detection assembly further comprises angle irons, and two ends of each angle iron are respectively in threaded connection with the support and the fixed base plate through screws.
8. The preparation method of the annular sealing structure is characterized by comprising the following steps of:
installing an annular sealing structure preparation device, setting the rotation speed of the electric rotating table, and setting the liquid injection rate and the liquid injection amount of the micro-injection pump;
adding external viscous liquid into the liquid storage box, standing to remove air bubbles in the viscous liquid in the liquid storage box, placing the liquid storage box filled with the viscous liquid on the electric rotating table and fixing by using the liquid storage box clamp;
adding a photocuring material into the injection needle cylinder, installing the injection needle cylinder on the micro-injection pump, connecting the hose and the liquid outlet needle, exhausting air in the hose and the liquid outlet needle, filling the hose and the liquid outlet needle with the photocuring material, and fixing the liquid outlet needle on the three-dimensional macro-moving platform;
opening the LED backlight source and the high-speed camera, and adjusting the intensity of light of the LED backlight source, the focal length and the aperture of the high-speed camera, so that a computer connected with the high-speed camera can shoot a clear liquid ring structure;
turning on the power supply of the electric rotating platform, and controlling the liquid storage box filled with the viscous liquid to rotate and reach a constant speed;
inserting the liquid outlet needle head into the viscous liquid in the liquid storage box by using the three-dimensional macro mobile platform;
starting the micro-injection pump, uniformly and continuously extruding the light-cured material into the viscous liquid of the liquid storage box through the hose and the liquid outlet needle head by the micro-injection pump according to a preset liquid injection rate and a preset liquid injection amount, and forming a liquid ring with a smooth curved surface under the condition of liquid injection and rotation;
recording the forming process of the liquid ring by using the high-speed camera, observing the interface appearance of the liquid ring and ensuring that the interface is not deformed;
after a liquid ring is formed, the micro-injection pump is closed, and the liquid outlet needle head is quickly moved out of the viscous liquid of the liquid storage box by using the three-dimensional microspur mobile platform;
closing the electric rotating table, opening the ultraviolet curing machine, and rapidly curing the liquid ring by using the ultraviolet curing lamp so as to form a solid annular sealing structure;
and taking out the solid annular sealing structure after the preparation is finished, shooting an image of the solid annular sealing structure by using the high-speed camera, detecting whether the inside of the solid ring has defects or not, and measuring the size of the solid annular sealing structure by using image processing software.
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| CN202010257553.0A CN111347667B (en) | 2020-04-03 | Annular sealing structure preparation device and preparation method thereof |
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| CN202010257553.0A CN111347667B (en) | 2020-04-03 | Annular sealing structure preparation device and preparation method thereof |
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