CN115356055A - Modular vacuum box equipment for helium detection - Google Patents
Modular vacuum box equipment for helium detection Download PDFInfo
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- CN115356055A CN115356055A CN202211273200.5A CN202211273200A CN115356055A CN 115356055 A CN115356055 A CN 115356055A CN 202211273200 A CN202211273200 A CN 202211273200A CN 115356055 A CN115356055 A CN 115356055A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/202—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material using mass spectrometer detection systems
- G01M3/205—Accessories or associated equipment; Pump constructions
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- Examining Or Testing Airtightness (AREA)
Abstract
The invention relates to a helium detection modular vacuum box device which comprises a cabinet and a vacuum box, wherein a top frame is arranged at the top of the cabinet, the vacuum box is positioned on the table surface of the cabinet, the vacuum box comprises a lower box body and an upper box cover, and the upper box cover is movably connected with the lower box body through a hinge; the overturning mechanism also comprises an overturning driving cylinder and a lifting side-slipping mechanism; the vacuum box is detachably connected with the table top of the cabinet; the overturning driving cylinder is movably connected with the table top of the cabinet, and a piston rod of the overturning driving cylinder is hinged with a top shaft on the side face of the upper box cover; the lifting side-sliding mechanism is positioned in the cabinet and corresponds to the upper position and the lower position of the vacuum box. The vacuum box adopts a modular design, so that the vacuum box can be integrally assembled, disassembled and replaced relative to equipment, the large-size vacuum box can be replaced according to a slightly large-size workpiece to be detected, the universality and the adaptability are enhanced, a plurality of helium detection equipment does not need to be purchased, and the equipment cost is saved; the crane in the workshop can hoist conveniently.
Description
Technical Field
The invention relates to helium detection equipment, in particular to helium detection modular vacuum box equipment.
Background
Helium detection is a detection means, a workpiece to be detected is placed in a vacuum box with a certain vacuum degree requirement, partial through holes on the workpiece are blocked, the workpiece to be detected is evacuated and then filled with helium with a certain pressure, and a helium mass spectrometer leak detector detects whether helium exists in the vacuum box. If the detected workpiece has leakage, the helium gas leaking into the vacuum box can be detected by a helium mass spectrometer leak detector.
If the application number is: 202210785910.x, publication No.: CN114858359a, name: a vacuum helium inspection method and a helium inspection machine thereof are disclosed, which comprises the following steps: the helium detector comprises a rack and a helium detection assembly, wherein the helium detection assembly comprises a vacuum box arranged on the rack and a plurality of plugging devices arranged outside the vacuum box, the vacuum box is communicated with a vacuum pump, the vacuum box is provided with a plurality of plugging holes, each plugging device comprises a plugging seat capable of being in sealing fit with the plugging holes and a plugging rod arranged on the plugging seat, the plugging rod can enter the vacuum box through the plugging holes to plug a workpiece to be detected, and the plugging rod is a solid rod or is communicated with an air hole capable of being connected with an air source along the axis of a rod body.
Although the technical scheme can carry out vacuum helium detection on the workpiece, the vacuum box is fixedly connected with the rack, so when helium detection needs to be carried out on workpieces with different types and sizes, if the workpieces with small sizes are still enough, for the workpieces with slightly large sizes, the structure of the vacuum box cannot be changed, the situation that the workpieces cannot be placed for detection can be met, and the universality and the adaptability of the helium detection equipment are poor. And purchasing helium detection equipment with different vacuum box sizes can easily cause the equipment purchasing cost to be violent.
Disclosure of Invention
The purpose of the invention is:
the modular vacuum box equipment for helium detection is designed, the vacuum box is in a modular design, so that the vacuum box can be integrally assembled, disassembled and replaced relative to the equipment, the large-size vacuum box can be replaced according to a slightly large-size workpiece to be detected, the equipment is suitable for workpieces with various sizes, the universality and the adaptability are enhanced, equipment cabinet sharing is realized, multiple types of helium detection equipment do not need to be purchased, and the equipment cost is saved; and can realize the automatic jacking of vacuum box and sideslip and shift out, be convenient for workshop hoist and mount.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a helium detection modular vacuum box device comprises a cabinet and a vacuum box, wherein a top frame is arranged at the top of the cabinet, the vacuum box is positioned on the table surface of the cabinet, the vacuum box comprises a lower box body and an upper box cover, and the upper box cover is movably connected with the lower box body through a hinge; the overturning mechanism also comprises an overturning driving cylinder and a lifting side-slipping mechanism; the vacuum box is detachably connected with the table top of the cabinet; the overturning driving cylinder is movably connected with the table board of the cabinet, and a piston rod of the overturning driving cylinder is hinged with a top shaft on the side surface of the upper box cover; the lifting side-slipping mechanism is positioned in the cabinet and corresponds to the upper position and the lower position of the vacuum box; the lifting side-slipping mechanism comprises a lifting seat, a lifting cylinder, a driving grooved wheel and a supporting wheel.
Furthermore, the lifting cylinder is vertically arranged and connected with the bottom end of the table top of the cabinet through a connecting frame, the connecting frame is U-shaped, the lifting seat is movably connected with the connecting frame through a guide rod, and a piston rod of the lifting cylinder is connected with the lifting seat; the driving grooved wheel is movably connected with the lifting seat through a rotating shaft.
Further, a reinforcing plate is arranged at the bottom end of the lower box body and is positioned in a groove of the driving grooved wheel; the reinforcing plate is strip-shaped; the driving grooved wheels correspond to the reinforcing plates one by one.
Furthermore, a servo motor is arranged at one end of the lifting seat, and the rotating shaft is coaxially connected with a main shaft of the servo motor; the rotating shaft is horizontally arranged.
Furthermore, the supporting wheel is connected with a wheel seat through a pin shaft, and the wheel seat is positioned on the lifting seat; the supporting wheels are multiple and distributed along the length direction of the reinforcing plate, and the horizontal height of the supporting wheels is higher than that of the driving sheave.
Furthermore, a plurality of photoelectric switches are arranged on the table top of the cabinet; the photoelectric switch is connected with the table board through the fixing frame, and the detection end horizontally faces the lower box body.
Furthermore, the outer edge of the bottom of the lower box body of the vacuum box is provided with a convex edge, the convex edge is provided with a through hole, and the through hole corresponds to the screw hole on the table board of the cabinet.
The invention has the beneficial effects that: a modular vacuum box device for helium detection is characterized in that the vacuum box is in a modular design, so that the vacuum box can be integrally assembled, disassembled and replaced relative to the device, the large-size vacuum box can be replaced according to a workpiece to be detected, and the large-size vacuum box is suitable for workpieces of various sizes to be detected, so that the universality and adaptability of the helium detection device are enhanced, equipment cabinet sharing is realized, only the vacuum box is replaced, multiple types of helium detection devices are not required to be purchased, and the device cost is greatly saved; and when the vacuum box needs to be disassembled, the vacuum box can be automatically jacked and sideslipped out, so that the interference with a top frame on the upper part of the cabinet is avoided, and the lifting of a workshop crane is facilitated.
Drawings
FIG. 1 is a three-dimensional perspective view of the overall structure of a helium testing modular vacuum box apparatus of the present invention.
FIG. 2 is a three-dimensional perspective view of a partial structure of a helium testing modular vacuum box apparatus of the present invention.
Fig. 3 is another view of the structure shown in fig. 2.
FIG. 4 is a schematic diagram of a vacuum box and a lifting side-sliding mechanism of the helium testing modular vacuum box apparatus of the present invention.
Fig. 5 is another schematic view of the structure shown in fig. 4.
FIG. 6 is a schematic diagram of a lower box body and a lifting side-sliding mechanism of the helium testing modular vacuum box device of the present invention.
FIG. 7 is a schematic diagram of a lifting sideslip mechanism of the helium testing modular vacuum box apparatus of the present invention.
Labeled as:
1. a cabinet; 2. a top frame; 3. a vacuum box; 31. a lower box body; 32. an upper box cover; 33. a hinge; 34. a top shaft; 35. a through hole; 36. a reinforcing plate; 4. a turnover driving cylinder; 5. a lifting sideslip mechanism; 51. a connecting frame; 52. a lifting seat; 53. a lifting cylinder; 55. a rotating shaft; 56. a drive sheave; 57. a servo motor; 58. a support wheel; 59. a wheel seat.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 7, the helium testing modular vacuum box device comprises a cabinet 1 and a vacuum box 3, wherein a top frame 2 is arranged at the top of the cabinet 1, the vacuum box 3 is located on a table top of the cabinet 1, the vacuum box 3 comprises a lower box body 31 and an upper box cover 32, the upper box cover 32 is movably connected with the lower box body 31 through a hinge 33, and the upper box cover 32 can be turned over and opened or closed relative to the lower box body 31; the device also comprises a turnover driving cylinder 4 and a lifting side-slipping mechanism 5; the vacuum box 3 is detachably connected with the table board of the machine cabinet 1, and different vacuum boxes 3 can be selected according to the sizes of the workpiece to be detected and the positioning jig thereof; the overturning driving cylinder 4 is movably connected with the table top of the cabinet 1, a piston rod of the overturning driving cylinder 4 is hinged with a top shaft 34 on the side surface of the upper box cover 32, and the overturning driving cylinder 4 is specifically a single-piston-rod linear cylinder and is used for driving the overturning action of the upper box cover 32 relative to the lower box body 31; the lifting side-slipping mechanism 5 is positioned in the cabinet 1 and corresponds to the upper position and the lower position of the vacuum box 3, and the lifting side-slipping mechanism 5 is used for driving the vacuum box 3 to lift and side-slip so as to facilitate the moving-out and putting-in operation of the vacuum box; the elevating side-slipping mechanism 5 includes an elevating base 52, an elevating cylinder 53, a driving sheave 56, and a support wheel 58.
The lifting cylinder 53 is vertically arranged and connected with the bottom end of the table top of the cabinet 1 through a connecting frame 51, the lifting cylinder 53 is specifically a single-piston-rod linear cylinder, the connecting frame 51 is U-shaped, the lifting seat 52 is movably connected with the connecting frame 51 through a guide rod, a piston rod of the lifting cylinder 53 is connected with the lifting seat 52, and the lifting cylinder 53 is used for driving the lifting seat 52 to move up and down; the driving sheave 56 is movably connected with the lifting seat 52 through a rotating shaft 55, and an annular groove is formed in the circumferential surface of the driving sheave 56 and used for guiding.
The reinforcing plate 36 is arranged at the bottom end of the lower box body 31, the reinforcing plate 36 is used for reinforcing the structural strength of the lower box body 31 and preventing the lower box body 31 from being obviously deformed under the action of vacuum pressure difference, and the reinforcing plate 36 is positioned in the groove of the driving sheave 56; the reinforcing plate 36 is strip-shaped; the driving sheaves 56 correspond to the reinforcing plates 36 one by one, and the driving sheaves 56 are used for driving the reinforcing plates 36 to move horizontally so as to realize the translation of the lower case 31, and the reinforcing plates 36 are used as guide plates.
One end of the lifting seat 52 is provided with a servo motor 57, and the rotating shaft 55 is coaxially connected with a main shaft of the servo motor 57; the rotating shaft 55 is horizontally arranged, and the servo motor 57 is used for driving the rotating shaft 55 and the driving sheave 56 to rotate for a specific number of turns and a specific angle, so that the accurate displacement of the vacuum box 3 can be realized.
The supporting wheel 58 is connected with a wheel seat 59 through a pin shaft, the wheel seat 59 is positioned on the lifting seat 52, and the supporting wheel 58 can rotate relative to the wheel seat 59; the number of the supporting wheels 58 is multiple and is distributed along the length direction of the reinforcing plate 36, the supporting wheels 58 support the bottom end face of the lower box body 31, and the supporting wheels are matched with the plurality of driving grooved wheels 56 to jointly support the lower box body 31 in the translation process, so that the lower box body 31 is ensured to move stably; and the supporting wheel 58 is higher than the driving sheave 56, because the bottom end surface of the lower box 31 is higher than the bottom end surface of the reinforcing plate 36, the supporting wheel 58 is higher, and is ensured to contact with the bottom end surface of the lower box 31, so as to realize supporting.
A plurality of photoelectric switches are arranged on the table top of the cabinet 1, specifically arranged around the lower box body 31, and used for detecting specific positions of the lower box body 31; the photoelectric switch is connected with the table board through the fixing frame, the detection end faces the lower box body 31 horizontally, in the operation of putting the vacuum box 3 into the machine cabinet 1, after the photoelectric switch detects that the position of the lower box body 31 is in place, the servo motor 57 stops, and then the lifting cylinder 53 drives the lifting seat 52 to descend, so that the lower box body 31 is put into.
The outer edge in the lower box 31 bottom of vacuum chamber 3 is provided with the chimb to be provided with through-hole 35 on the chimb, through-hole 35 is corresponding with the screw position on the mesa of rack 1, and through-hole 35 is used for locking the screw, and in the screw locked screw, the fixed connection of box 31 and rack 1 was down realized.
The method comprises the following specific working steps:
when a workpiece needs helium detection, firstly, the sizes of the workpiece and a corresponding positioning tool are evaluated, whether the workpiece can be completely placed in the vacuum box 3 or not is judged, if yes, the vacuum box 3 does not need to be replaced, and if not, the vacuum box 3 with a larger size needs to be replaced; the vacuum boxes 3 with different sizes only have different peripheral profiles of the lower box body 31 and the upper box cover 32, and the positions of the top shafts 34, the distribution of the through holes 35 and the positions of the reinforcing plates 36 are the same, so that the installation matching degree is ensured;
when the vacuum box 3 does not need to be replaced, the piston rod of the overturning driving cylinder 4 extends out, the upper box cover 32 is driven to be overturned upwards and opened relative to the lower box body 31 through the top shaft 34, a workpiece and a corresponding positioning tool are placed into the lower box body 31 together, the helium filling pipeline is connected with a corresponding interface on the workpiece, the piston rod of the overturning driving cylinder 4 drives the upper box cover 32 to be overturned downwards and closed, the vacuum box 3 is closed to realize sealing, and helium detection operation can be carried out after vacuumizing;
when the vacuum box 3 needs to be replaced, all the pipelines connected with the lower box body 31 and the upper box cover 32 are separated, a tool is used for screwing out the screw in the through hole 35, and the top shaft 34 is disconnected with the piston rod of the overturning driving cylinder 4; then, a piston rod of a lifting cylinder 53 of the lifting side-slipping mechanism 5 extends upwards to drive a lifting seat 52 to move upwards, a grooved pulley 56 is driven to prop against a reinforcing plate 36 at the bottom of the lower box body 31, and a supporting wheel 58 props against the bottom end face of the lower box body 31, so that the integral jacking of the vacuum box 3 is realized;
after the vacuum box rises to a specific height, the servo motor 57 is electrified and rotated, the driving rotating shaft 55 and the driving grooved pulley 56 rotate together, the driving grooved pulley 56 drives the reinforcing plate 36 to move towards the outside of the cabinet 1, the supporting wheel 58 is unpowered, and rotates when the lower box body 31 moves horizontally until the vacuum box 3 moves outwards to a specific position relative to the cabinet 1 and the top frame 2, and at the moment, the vacuum box 3 can be hoisted by the crane, so that automatic ejection and sideslip are realized, the structural interference between hoisting operation and the top frame 2 is avoided, and the replacement operation of the vacuum box 3 is facilitated.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
The above examples are intended to further illustrate the present invention, but are not intended to limit the invention to these specific embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be understood to be within the protection scope of the present invention.
Claims (7)
1. The helium detection modular vacuum box equipment comprises a cabinet (1) and a vacuum box (3), wherein a top frame (2) is arranged at the top of the cabinet (1), the vacuum box (3) is located on the table top of the cabinet (1), the vacuum box (3) comprises a lower box body (31) and an upper box cover (32), and the upper box cover (32) is movably connected with the lower box body (31) through a hinge (33); the method is characterized in that: the device also comprises a turnover driving cylinder (4) and a lifting side-slipping mechanism (5); the vacuum box (3) is detachably connected with the table top of the cabinet (1); the overturning driving cylinder (4) is movably connected with the table top of the cabinet (1), and a piston rod of the overturning driving cylinder (4) is hinged with a top shaft (34) on the side surface of the upper box cover (32); the lifting side-sliding mechanism (5) is positioned in the cabinet (1) and corresponds to the upper position and the lower position of the vacuum box (3); the lifting side-slipping mechanism (5) comprises a lifting seat (52), a lifting cylinder (53), a driving grooved wheel (56) and a supporting wheel (58).
2. A helium testing modular vacuum box apparatus as claimed in claim 1, wherein: the lifting cylinder (53) is vertically arranged and is connected with the bottom end of the table top of the cabinet (1) through a connecting frame (51), the connecting frame (51) is U-shaped, the lifting seat (52) is movably connected with the connecting frame (51) through a guide rod, and a piston rod of the lifting cylinder (53) is connected with the lifting seat (52); the driving grooved wheel (56) is movably connected with the lifting seat (52) through a rotating shaft (55).
3. A helium testing modular vacuum box apparatus as claimed in claim 2, wherein: the bottom end of the lower box body (31) is provided with a reinforcing plate (36), and the reinforcing plate (36) is positioned in a groove of the driving grooved wheel (56); the reinforcing plate (36) is strip-shaped; the driving grooved wheels (56) correspond to the reinforcing plates (36) one by one.
4. A helium testing modular vacuum box apparatus as claimed in claim 3, wherein: a servo motor (57) is arranged at one end of the lifting seat (52), and the rotating shaft (55) is coaxially connected with a main shaft of the servo motor (57); the rotating shaft (55) is horizontally arranged.
5. The helium testing modular vacuum box apparatus of claim 4, wherein: the supporting wheel (58) is connected with a wheel seat (59) through a pin shaft, and the wheel seat (59) is positioned on the lifting seat (52); the supporting wheels (58) are multiple in number and are arranged along the length direction of the reinforcing plate (36), and the horizontal height of the supporting wheels (58) is higher than that of the driving grooved wheels (56).
6. A helium testing modular vacuum box apparatus as claimed in claim 5, wherein: photoelectric switches are arranged on the table top of the cabinet (1), and the number of the photoelectric switches is multiple; the photoelectric switch is connected with the table board through a fixing frame, and the detection end faces to the lower box body (31) horizontally.
7. The helium testing modular vacuum box apparatus of claim 6, wherein: the outer edge of the bottom of the lower box body (31) of the vacuum box (3) is provided with a convex edge, a through hole (35) is formed in the convex edge, and the through hole (35) corresponds to the position of a screw hole in the table top of the cabinet (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211273200.5A CN115356055B (en) | 2022-10-18 | 2022-10-18 | Helium detection modularized vacuum box equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211273200.5A CN115356055B (en) | 2022-10-18 | 2022-10-18 | Helium detection modularized vacuum box equipment |
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| CN115356055A true CN115356055A (en) | 2022-11-18 |
| CN115356055B CN115356055B (en) | 2023-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211273200.5A Active CN115356055B (en) | 2022-10-18 | 2022-10-18 | Helium detection modularized vacuum box equipment |
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| CN206537943U (en) * | 2017-02-28 | 2017-10-03 | 苏州工业职业技术学院 | A kind of sheet material carrying mechanism |
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| CN210289521U (en) * | 2019-07-01 | 2020-04-10 | 上海贤日测控科技有限公司 | Automatic upper and lower double-layer vacuum box door mechanism |
| CN111562060A (en) * | 2020-06-22 | 2020-08-21 | 上海真兰仪表科技股份有限公司 | Helium detection method and system |
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| CN211443467U (en) * | 2019-11-14 | 2020-09-08 | 北京物科国华技术有限公司 | Detachable vacuum storage device |
| CN114858359A (en) * | 2022-07-06 | 2022-08-05 | 南京宇众自动化装备有限公司 | Vacuum helium testing method and helium testing machine thereof |
| CN217349438U (en) * | 2022-03-16 | 2022-09-02 | 新疆金风科技股份有限公司 | Replacing tool for radiating fins |
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2022
- 2022-10-18 CN CN202211273200.5A patent/CN115356055B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206537943U (en) * | 2017-02-28 | 2017-10-03 | 苏州工业职业技术学院 | A kind of sheet material carrying mechanism |
| CN207104221U (en) * | 2017-06-19 | 2018-03-16 | 苏州赛腾精密电子股份有限公司 | One kind jacking laminating apparatus |
| CN210289521U (en) * | 2019-07-01 | 2020-04-10 | 上海贤日测控科技有限公司 | Automatic upper and lower double-layer vacuum box door mechanism |
| CN211443467U (en) * | 2019-11-14 | 2020-09-08 | 北京物科国华技术有限公司 | Detachable vacuum storage device |
| CN211418939U (en) * | 2019-12-17 | 2020-09-04 | 河北海阳顺达节能玻璃有限公司 | Auxiliary overturning platform for supporting lower piece of hollow glass |
| CN111562060A (en) * | 2020-06-22 | 2020-08-21 | 上海真兰仪表科技股份有限公司 | Helium detection method and system |
| CN217349438U (en) * | 2022-03-16 | 2022-09-02 | 新疆金风科技股份有限公司 | Replacing tool for radiating fins |
| CN114858359A (en) * | 2022-07-06 | 2022-08-05 | 南京宇众自动化装备有限公司 | Vacuum helium testing method and helium testing machine thereof |
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| CN115356055B (en) | 2023-08-15 |
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