CN113504006A

CN113504006A - Full-automatic air tightness detection method

Info

Publication number: CN113504006A
Application number: CN202110753322.3A
Authority: CN
Inventors: 吴华; 徐振光; 马运曦; 徐海峰
Original assignee: Suzhou RS Technology Co Ltd
Current assignee: Suzhou RS Technology Co Ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2021-10-15

Abstract

The invention discloses a full-automatic air tightness detection method, which comprises the following steps: step S1, providing a conveyor belt; step S2, providing a carrying and transferring mechanism which is arranged at the upstream of the conveyor belt and can perform bidirectional feeding based on two sides of the conveyor belt; step S3, providing a plurality of air tightness detection mechanisms arranged at two sides of the conveyor belt; and step S4, arranging a transfer manipulator between each side of the conveyor belt and the air tightness detection mechanism on the corresponding side, wherein the transfer manipulator is used for taking down the workpiece to be detected from the conveying transfer mechanism and sending the workpiece into the air tightness detection mechanism for air tightness detection, and then taking out the detected workpiece from the air tightness detection mechanism and placing the workpiece on the conveyor belt for sending. According to the invention, the material can be taken and put in two directions, so that the neutral gear time of the station is fully utilized, and the detection efficiency is improved by times.

Description

Full-automatic air tightness detection method

Technical Field

The invention relates to the field of nonstandard automation equipment, in particular to a full-automatic air tightness detection method.

Background

In the non-standard automation field, it is well known to adopt different structural air tightness detection methods to perform air tightness detection on a workpiece. In the process of researching and realizing the air tightness detection of a workpiece, researchers find that the air tightness detection method in the prior art at least has the following problems:

the unreasonable process design results in too long neutral interval between feeding and transferring, and the neutral time can not be fully utilized, thus resulting in low detection efficiency.

In view of the above, there is a need to develop a fully automatic air tightness detection method to solve the above problems.

Disclosure of Invention

In order to overcome the problems of the full-automatic air tightness detection method, the invention aims to provide the full-automatic air tightness detection method which can take and place materials in a bidirectional mode so as to fully utilize neutral gear time of a station, and detection efficiency is improved in a multiplied mode.

In terms of the fully automatic air tightness detection method, the fully automatic air tightness detection method for solving the technical problems comprises the following steps:

step S1, providing a conveyor belt;

step S2, providing a carrying and transferring mechanism which is arranged at the upstream of the conveyor belt and can perform bidirectional feeding based on two sides of the conveyor belt;

step S3, providing a plurality of air tightness detection mechanisms arranged at two sides of the conveyor belt;

and step S4, arranging a transfer manipulator between each side of the conveyor belt and the air tightness detection mechanism on the corresponding side, wherein the transfer manipulator is used for taking down the workpiece to be detected from the conveying transfer mechanism and sending the workpiece into the air tightness detection mechanism for air tightness detection, and then taking out the detected workpiece from the air tightness detection mechanism and placing the workpiece on the conveyor belt for sending.

Optionally, in step S4, each transfer robot takes out the detected workpiece from the corresponding side air-tightness detecting mechanism and places the detected workpiece on the conveyor belt to be sent out while taking off the workpiece to be detected from the carrying and transferring mechanism.

Optionally, the transfer robot includes:

a transfer beam extending in a linear direction;

the sliding beam is connected with the transfer beam in a sliding manner; and

the rotating assembly comprises a rotating base connected with the sliding cross beam in a sliding mode and a rotating installation plate connected with the rotating base in a rotating mode;

the extending direction of the sliding cross beam is perpendicular to the transferring cross beam; the transfer cross beam is provided with a transfer driver for driving the sliding cross beam to slide back and forth along the transfer cross beam; a sliding driver for driving the rotating base to slide back and forth along the sliding beam is arranged on the sliding beam; and a rotary driver for driving the rotary mounting plate to rotate is arranged on the rotary base.

Optionally, the carrying and transferring mechanism includes:

a steering assembly, the steering assembly comprising: the steering device comprises a steering base, a steering cantilever with one end rotatably connected with the steering base and a steering driver in transmission connection with the steering cantilever; and

the two groups of transfer assemblies are symmetrically arranged on two sides of the steering assembly;

the other end of the steering cantilever is provided with a material taking and placing module, and the steering cantilever is driven by the steering driver to pull the material taking and placing module to switch between the two groups of transfer assemblies in a reciprocating manner; each of the transfer robots is opposed to the transfer unit on the corresponding side.

Optionally, the air tightness detecting mechanism includes:

the mounting bracket is sequentially provided with a driving assembly space, a sealing film supply space and a pressing sealing space at intervals from top to bottom;

the sealing film supply module is arranged in the sealing film supply space, and a down-pressing type sealing mechanism is fixedly arranged in the sealing film supply module;

the power output end of the lifting driver is in transmission connection with the sealing film supply module; and

the lower sealing assembly and the upper sealing assembly are arranged in the press-fit sealing space and form a sealing mechanism;

the height dimension of the pressing sealing space can expand or shrink along with the reciprocating lifting of the sealing film supply module driven by the lifting driver, and meanwhile, the lower sealing assembly and the upper sealing assembly are driven to be combined or separated; when the lower sealing assembly and the upper sealing assembly are combined to seal part of the workpieces, the lower pressing type sealing mechanism drives the sealing pressure head to reciprocate and lift along the vertical direction, so that the sealing film below the sealing pressure head is pushed to the opening of the workpiece to be sealed in the pressing sealing space.

Optionally, the mounting bracket includes:

at least three lifting guide columns which are arranged in a non-collinear way;

the lower pressing mounting plate is movably sleeved on the lifting guide pillar; and

the fixed mounting plate and the bearing platform are fixedly connected to the top and the bottom of the lifting guide pillar respectively;

the downward pressing mounting plate is positioned below the fixed mounting plate and is arranged at a distance from the fixed mounting plate to form the sealing film supply space between the downward pressing mounting plate and the fixed mounting plate; the press-fit sealing space is formed between the press-fit mounting plate and the bearing platform; the driving assembly space is formed above the fixed mounting plate; the lower surface of the lower pressure mounting plate is provided with the upper sealing assembly; the bearing platform is provided with the lower sealing assembly.

Optionally, the sealing film is continuously supplied with the sealing film in a tension manner in the sealing film supply module, and the lower-pressure type sealing mechanism is positioned right above the stepping path of the sealing film and enables the sealing pressure head in the lower-pressure type sealing mechanism to be opposite to the sealing film below the lower-pressure type sealing mechanism; when the sealing film supply module is lowered to a preset position and the lower sealing assembly and the upper sealing assembly are combined to form sealing on a part of workpieces, the lower pressing type sealing mechanism drives the sealing pressure head to reciprocate and lift along the vertical direction so as to push the sealing film below the sealing pressure head to an opening of the workpiece to be sealed in the pressing and sealing space.

One of the above technical solutions has the following advantages or beneficial effects: because the material can be bidirectionally picked and placed, and the neutral time of the station can be fully utilized, the detection efficiency is improved by times.

One of the above technical solutions has the following advantages or beneficial effects: the automation degree is greatly improved, the workpiece is prevented from being polluted by manual contact in the detection process, the detection efficiency is improved, and the over-judgment rate is reduced.

Another technical scheme in the above technical scheme has the following advantages or beneficial effects: because the lifting driver is adopted to quickly drive the sealing pressure head to the film pasting station close to the workpiece, then the sealing pressure head is slowly driven to be pressed down through the pressing driver until the sealing film is pasted on the workpiece opening, on one hand, the sealing pressure head is quickly driven to be close to the film pasting station to reduce the falling time, on the other hand, the sealing pressure head is slowly driven to execute the fine action of film pasting sealing after reaching the film pasting station, the workpiece damage caused by the uncontrollable film pasting pressure due to the overlarge driving pressure or the overlarge falling amplitude is prevented, namely, the workpiece damage can be prevented while the film pasting sealing efficiency is improved.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings of the embodiments will be briefly described below, and it is apparent that the drawings in the following description relate only to some embodiments of the present invention and are not limiting thereof, wherein:

fig. 1 is a top view of a fully automatic airtightness detection apparatus according to an embodiment of the present invention;

fig. 2 is a perspective view of a transfer robot in the fully automatic airtightness detection apparatus according to an embodiment of the present invention;

fig. 3 is a perspective view of four sets of suction assemblies mounted on a rotating mounting plate in a transfer robot according to one embodiment of the present invention;

FIG. 4 is a top view of FIG. 3;

fig. 5 is a perspective view of a proposed conveyance transfer mechanism according to an embodiment of the present invention;

fig. 6 is a left side view of a proposed carrier transfer mechanism according to an embodiment of the present invention;

fig. 7 is a perspective view of the transfer mechanism according to an embodiment of the present invention, wherein the steering arm and the material pick-and-place module are engaged;

FIG. 8 is a top view of FIG. 7;

fig. 9 is a perspective view of a secondary positioning jig in the carrying and transferring mechanism according to an embodiment of the present invention, which shows a state when a material is loaded;

fig. 10 is a perspective view of a secondary positioning fixture in the conveying and transferring mechanism according to an embodiment of the present invention;

fig. 11 is a top view of an internal structure of a secondary positioning fixture in a carrying and transferring mechanism according to an embodiment of the present invention;

fig. 12 is a perspective view of a proposed airtightness detecting mechanism according to one embodiment of the present invention;

fig. 13 is a front view of a proposed airtightness detecting mechanism according to one embodiment of the present invention;

fig. 14 is a partial perspective view of a proposed airtightness detection mechanism according to an embodiment of the present invention;

fig. 15 is a perspective view of a bonding member in the airtightness detection mechanism according to one embodiment of the present invention;

fig. 16 is a perspective view of a push-down type sealing mechanism in the airtightness detection mechanism according to one embodiment of the present invention;

fig. 17 is an exploded view of a push-down type sealing mechanism in the airtightness detection mechanism according to one embodiment of the present invention;

fig. 18 is a perspective view of a sealing ram assembly in the airtightness detection mechanism according to one embodiment of the present invention;

fig. 19 is an exploded view of a sealing ram assembly in the proposed hermeticity detection mechanism according to one embodiment of the present invention;

fig. 20 is a perspective view of the sealing ram assembly of the air-tightness detecting mechanism according to an embodiment of the present invention with the sealing ram and the ram holder removed, showing the detail of the ram accommodating groove from the bottom;

fig. 21 is a partial perspective view of a proposed airtightness detection mechanism according to an embodiment of the present invention;

fig. 22 is a perspective view of a lower seal assembly in the airtightness detection mechanism according to one embodiment of the present invention;

fig. 23 is a plan view of a lower seal assembly in the airtightness detection mechanism according to one embodiment of the present invention;

FIG. 24 is a cross-sectional view taken along the line E-E in FIG. 23;

fig. 25 is a perspective view of a lateral positioning member in the airtightness detection mechanism according to the embodiment of the present invention;

fig. 26 is a front view of a lateral positioning member in the airtightness detection mechanism according to the embodiment of the present invention;

fig. 27 is an exploded view of a lateral positioning member in the airtightness detection mechanism according to one embodiment of the present invention;

FIG. 28 is a combined schematic view of a plurality of lateral positioning assemblies in combination for positioning a workpiece laterally in accordance with an embodiment of the present invention;

fig. 29 is an exploded view of an upper seal assembly in the hermeticity detection mechanism according to one embodiment of the present invention;

fig. 30 is a sectional view of an upper seal assembly in the airtightness detection mechanism according to one embodiment of the present invention;

FIG. 31 is a longitudinal cross-sectional view of an upper seal armature and an upper seal ring in accordance with one embodiment of the present invention;

FIG. 32 is a perspective view of the upper seal assembly and the lower seal assembly shown assembled together to form a seal mechanism in accordance with one embodiment of the present invention;

fig. 33 is a longitudinal sectional view of the upper seal assembly and the lower seal assembly provided in accordance with one embodiment of the present invention after they are combined to form a seal mechanism.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc., are defined with respect to the configurations shown in the respective drawings, and in particular, "height" corresponds to a dimension from top to bottom, "width" corresponds to a dimension from left to right, "depth" corresponds to a dimension from front to rear, which are relative concepts, and thus may be varied accordingly depending on the position in which it is used, and thus these or other orientations should not be construed as limiting terms.

Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.

Example 1

Fig. 1 to 2 show embodiment 1 of the present invention, and with reference to the illustration of fig. 1, it can be seen that the full-automatic air tightness detection method includes the following steps:

step S1, providing a conveyor belt 7;

step S2, providing a carrying and transferring mechanism 4 disposed upstream of the conveyor belt 7 and capable of bidirectional feeding based on both sides of the conveyor belt 7;

step S3 of providing a plurality of airtightness detection mechanisms 6 arranged on both sides of the conveyor belt 7;

and step S4, arranging a transfer manipulator 8 between each side of the conveyor belt 7 and the air tightness detection mechanism 6 on the corresponding side, wherein the transfer manipulator 8 is used for taking the workpiece to be detected off from the conveying transfer mechanism 4 and sending the workpiece into the air tightness detection mechanism 6 for air tightness detection, and then taking the detected workpiece out from the air tightness detection mechanism 6 and placing the workpiece on the conveyor belt 7 for sending.

Further, in step S4, each transfer robot 8 takes out the detected workpiece from the corresponding side airtightness detection mechanism 6 and places the workpiece on the conveyor belt 7 to be sent out while removing the workpiece to be detected from the conveyance transfer mechanism 4.

Referring to fig. 2 to 4, the transfer robot 8 includes:

a transfer beam 81 extending in a linear direction;

a sliding beam 82 connected to the transfer beam 81 in a sliding manner; and

a rotating assembly 83 including a rotating base 832 slidably connected with the sliding beam 82 and a rotating mounting plate 831 rotatably connected with the rotating base 832;

wherein, the extending direction of the sliding beam 82 is perpendicular to the transfer beam 81: a transfer driver for driving the sliding beam 82 to slide back and forth along the transfer beam 81 is arranged on the transfer beam 81; a sliding driver for driving the rotating base 832 to slide back and forth along the sliding beam 82 is arranged on the sliding beam 82; the rotation base 832 is mounted with a rotation driver for driving the rotation mounting plate 831 to rotate.

Further, two sets of suction component subsets are installed on the rotating mounting plate 831, and each set of suction component subset includes at least one set of suction component 84.

Further, in any rotation interval, the rotation driver drives one of the suction component subsets toward the transfer beam 81 and the other suction component subset away from the transfer beam 81.

Referring again to fig. 3, the extraction assembly 84 includes:

a linear elevating driver 841 installed on the rotation mounting plate 831;

a lifting mounting plate 842 in transmission connection with the power output end of the linear lifting driver 841;

two suction support plates 843 mounted on the lifting mounting plate 842; and

wherein at least one vacuum suction nozzle 8431 is installed on the bottom surface of each suction support plate 843.

Further, the absorbing support plates 843 are L-shaped structures, the two absorbing support plates 843 are rotationally symmetrically arranged with respect to the lifting mounting plate 842, and the distance between the two absorbing support plates 843 is adjustable to adapt to objects to be absorbed with different sizes.

Further, a vacuum suction nozzle 8431 is installed at the outer end of each suction support plate 843, and the rotation angle between the two suction support plates 843 is 180 °, so that two vacuum suction nozzles 8431 are diagonally arranged in the rectangular frame.

As can be seen in the embodiment shown in fig. 2 and 3, each of said subsets of suction assemblies comprises two sets of suction assemblies 84 arranged symmetrically with respect to the rotating mounting plate 831, each set of suction assemblies 84 sucking one product 24.

Referring to fig. 5 to 12, the conveyance transfer mechanism 4 includes:

a steering assembly 41, said steering assembly 41 comprising: a steering base 411, a steering cantilever 412 with one end rotatably connected with the steering base 411, and a steering driver 413 in transmission connection with the steering cantilever 412; and

two sets of transfer units 42 symmetrically disposed on both sides of the steering unit 41;

wherein, the other end of the steering cantilever 412 is provided with a material taking and placing module 414, and the steering cantilever 412 pulls the material taking and placing module 414 to switch between the two sets of transfer assemblies 42 back and forth under the driving of the steering driver 413.

Referring to fig. 5 and 8, the material taking and placing module 414 includes:

a steering lift driver 4141 fixedly connected to the steering arm 412;

at least one material taking and placing mounting plate 4142 which is in transmission connection with the power output end of the steering lifting driver 4141; and

a pick-and-place nozzle 4143 mounted to a corresponding one of the material pick-and-place mounting plates 4142.

Referring to fig. 7 and 8, the material taking and placing mounting plates 4142 are in an L-shaped structure, two material taking and placing mounting plates 4142 are arranged in a rotational symmetry manner with respect to the steering and lifting driver 4141, and the distance between every two material taking and placing mounting plates 4142 is adjustable.

Furthermore, each of the pick-and-place suction nozzles 4143 is mounted at an outer end of a corresponding one of the material pick-and-place mounting plates 4142, and a rotation angle between every two of the material pick-and-place mounting plates 4142 is 180 degrees, so that every two of the pick-and-place suction nozzles 4143 are diagonally arranged in the rectangular frame, and thus diagonal type suction can be performed on the material, and the stability of the material suction is improved to the maximum extent under the condition that the number of the suction nozzles is not additionally increased.

Further, the material taking and placing modules 414 are symmetrically arranged in two groups with respect to the steering cantilever 412.

Referring to fig. 5 and 6, the transfer unit 42 includes:

a fixedly disposed transfer base 421;

a transfer guide 422 provided on the transfer base 421 and extending in a linear direction; and

a transfer driver 423 mounted on the transfer base 421;

the transfer guide rail 422 is sequentially provided with a bearing station close to the turning base 411 and a transfer station far away from the turning base 411 along the extension direction of the transfer guide rail 422, the transfer guide rail 422 is connected with a secondary positioning jig 23 in a sliding manner, and the secondary positioning jig 23 is driven by the transfer driver 423 to slide between the bearing station and the transfer station along the transfer guide rail 422 in a reciprocating manner.

Referring to fig. 9 to 11, the secondary positioning jig 23 includes:

a jig base 231 on which at least one positioning region 2311 is formed;

at least one pair of longitudinal restraining terminals 234, each pair of longitudinal restraining terminals 234 being fixedly mounted to a longitudinal edge of a corresponding one of the positioning regions 2311;

at least one pair of lateral restraining terminals 235, each pair of lateral restraining terminals 235 being fixedly mounted to a lateral edge of a corresponding one of the positioning regions 2311;

at least one set of longitudinal positioning elements 233, each set of said longitudinal positioning elements 233 being arranged at a longitudinal edge of a respective one of said positioning areas 2311 and being disposed opposite a respective pair of longitudinal restraining terminals 234;

at least one set of lateral positioning elements 232, each set of said lateral positioning elements 232 being arranged at a lateral edge of a respective one of said positioning areas 2311 and being disposed opposite a respective pair of lateral limit terminals 235;

wherein each set of the longitudinal positioning elements 233, together with a corresponding set of the lateral positioning elements 232, a pair of the longitudinal restraining terminals 234, and a pair of the lateral restraining terminals 235, bounds the area forming the positioning area 2311. Fig. 1 shows a schematic view of a state in which the jig 23 carries the material 24.

In the embodiment shown in fig. 10, a grid-like substrate 236 made of an elastic material is provided in each of the positioning regions 2311.

Further, the distance between each pair of the longitudinal restraint terminals 234 and the corresponding set of longitudinal positioning elements 233 or the distance between each pair of the lateral restraint terminals 235 and the corresponding set of lateral positioning elements 232 is adjustable, so that the range boundary of the positioning area 2311 is adjustable to accommodate different material sizes.

Referring to fig. 11, the transverse positioning component 232 and the longitudinal positioning component 233 are embedded in the jig base 231, and the transverse positioning component 232 and the longitudinal positioning component 233 are linked.

Further, the longitudinal positioning assembly 233 includes:

a longitudinal positioning body 2331 extending along a longitudinal axis; and

a vertical positioning block 2333 provided on one end of the vertical positioning body 2331,

a longitudinal return spring 2336 extending along a longitudinal axis is supported between the longitudinal positioning body 2331 and the jig base 231.

Further, a longitudinal support lug 2335 is integrally arranged at the side of the longitudinal positioning body 2331, the longitudinal support lug 2335 horizontally protrudes outwards along the direction of the transverse axis, and the longitudinal return spring 2336 is arranged between the longitudinal support lug 2335 and the jig base 231.

Further, a push rod 2337 is fixedly connected to the other end of the longitudinal positioning body 2331, wherein the longitudinal return spring 2336 and the longitudinal positioning block 2333 are located at the same side of the longitudinal support lug 2335, and the push rod 2337 is located at the other side of the longitudinal positioning body 2331.

Further, the lateral positioning assembly 232 includes:

a transverse positioning body 2321 extending along a transverse axis; and

a transverse positioning block 2323 provided on one end of the transverse positioning body 2321,

a transverse return spring 2326 extending along the transverse axis is supported between the transverse positioning body 2321 and the jig base 231, and the longitudinal positioning body 2331 is perpendicular to the transverse positioning body 2321.

Further, a lateral support lug 2325 is integrally disposed on a lateral side of the lateral positioning body 2321, the lateral support lug 2325 protrudes horizontally and outwardly along the longitudinal axis direction, the lateral return spring 2326 is disposed between the lateral support lug 2325 and the jig base 231, and the lateral return spring 2326 and the lateral positioning block 2323 are disposed on the same side of the lateral support lug 2325.

Further, a linkage groove is formed on the longitudinal positioning body 2331, a linkage end is integrally formed at the other end of the transverse positioning body 2321, and the linkage end is embedded in the linkage groove.

Furthermore, the linkage end is provided with an oblique guide surface 2321a forming a certain included angle with the transverse axis and a transverse guide surface 2321b parallel to the transverse axis, and the projection of the linkage end in the Z direction is in a right-angled triangle structure.

Further, an inclined stopper surface 2331a and a lateral stopper surface 2331b are formed on both side surfaces of the interlocking groove to correspond to the inclined guide surface 2321a and the lateral guide surface 2321b, respectively.

Fig. 1 to 3 show embodiment 1 of the present invention, and with reference to fig. 1 to 3, it can be seen that the feeding and discharging integrated air tightness detecting device includes:

gas tightness detection mechanism 6, turnover formula transfer mechanism 2 and locate go up unloading mechanism 1, pad pasting mechanism 3 and transport transfer mechanism 4 of turnover formula transfer mechanism 2's side, its characterized in that, turnover formula transfer mechanism 2 includes:

a turntable base 21 fixedly arranged;

a turntable 22 rotatably connected at the center to the top of the turntable base 21; and

a rotary driver 26 which is arranged on the rotary base 21 and the power output end of the rotary driver 26 is in transmission connection with the rotary disc 22;

wherein, a feeding station 221, a film sticking station 222, a buffer station 223 and a transfer station 224 are sequentially arranged on the periphery of the turntable base 21 along the rotation direction of the turntable 22 at equal intervals; the loading and unloading mechanism 1, the film sticking mechanism 3 and the carrying and transferring mechanism 4 are respectively aligned with the loading station 221, the film sticking station 222 and the transferring station 224; the air tightness detection mechanism 6 is arranged beside the carrying and transferring mechanism 4.

Further, the feeding and discharging integrated air tightness detection device further comprises a transfer manipulator 8 which is arranged between the conveying transfer mechanism 4 and the air tightness detection mechanism 6 and used for transferring the workpieces to be detected cached on the conveying transfer mechanism 4 to the air tightness detection mechanism 6 for air tightness detection and taking out the detected workpieces from the air tightness detection mechanism 6.

Further, the feeding and discharging integrated air tightness detection device further comprises a conveyor belt 7 arranged below the transfer mechanical arm 8, and the transfer mechanical arm 8 takes out the detected workpiece from the air tightness detection mechanism 6 and then places the workpiece on the conveyor belt 7 to be sent out.

Referring to fig. 12 to 17, the airtightness detection mechanism 6 includes:

the mounting bracket 61, the mounting bracket 61 is sequentially provided with a driving assembly space 618, a sealing film supply space 617 and a pressing sealing space 615 at intervals from top to bottom;

a seal film supply module 63 installed in the seal film supply space 617, wherein a push-down type seal mechanism 64 is fixedly installed in the seal film supply module 63;

a lifting driver 65 installed in the driving assembly space 618, wherein the power output end of the lifting driver 65 is in transmission connection with the sealing film supply module 63; and

a lower sealing component and an upper sealing component which are arranged in the pressing sealing space 615 and form a sealing mechanism 62;

the height dimension of the pressing sealing space 615 can be enlarged or reduced along with the lifting driver 65 driving the sealing film supply module 63 to reciprocate, and simultaneously drives the lower sealing assembly to be combined with or separated from the upper sealing assembly; when the lower sealing assembly and the upper sealing assembly cooperate to form a seal on a part of the workpiece, the downward-pressing type sealing mechanism 64 drives the sealing ram 645 therein to reciprocate and lift in the vertical direction so as to push the sealing film 634 below the sealing ram 645 to the opening of the workpiece to be sealed in the press-fit sealing space 615.

Referring to fig. 13, the mounting bracket 61 includes:

at least three non-collinear lifting guide posts 616;

a lower press mounting plate 613 movably sleeved on the lifting guide post 616; and

a fixed mounting plate 614 and a bearing platform 612 fixedly connected to the top and the bottom of the lifting guide column 616 respectively;

wherein the push-down mounting plate 613 is positioned below the fixed mounting plate 614 and is spaced apart from the fixed mounting plate 614 to form the sealing film supplying space 617 therebetween; the press-fit sealing space 615 is formed between the lower press-fit plate 613 and the bearing platform 612; the drive assembly space 618 is formed above the fixed mounting plate 614; the lower surface of the lower pressure mounting plate 613 is provided with the upper seal assembly; the lower seal assembly is mounted on the load-bearing platform 612.

Referring to fig. 14 and 15, the sealing film supply module 63 is continuously supplied with the sealing film 634 in a tension manner, and the push-down sealing mechanism 64 is located right above the stepping path of the sealing film 634 such that the sealing ram 645 in the push-down sealing mechanism 64 is opposite to the sealing film 634 therebelow; when the sealing film supply module 63 descends to a preset position and the lower sealing assembly and the upper sealing assembly are combined to form a seal on a part of the workpiece, the downward-pressing type sealing mechanism 64 drives the sealing press head 645 therein to reciprocate and ascend along the vertical direction so as to push the sealing film 634 below the sealing press head 645 to the opening of the workpiece to be sealed in the press-fit sealing space 615.

Specifically, the sealing film supply module 63 includes:

a mounting upright 631 fixedly mounted on the lower mounting plate 613; and

a material discharging roll 632 and a material receiving roll 633 which are connected to the mounting vertical plate 631 in a rotating mode, wherein a sealing film 634 is wound on the material discharging roll 632, and the used sealing film 634 is wound on the material receiving roll 633;

the down-pressure sealing mechanism 64 is disposed between the material-discharging roll 632 and the material-receiving roll 633. Because the sealing film 634 can be continuously discharged and the downward pressing sealing operation can be executed on the transmission path of the sealing film 634, and the used sealing film can be continuously and automatically recovered, the automation degree and efficiency of sealing are greatly improved, and the high-efficiency execution of the sealing detection operation is facilitated. In the embodiment shown in fig. 4, the sealing film 634 is tensioned in an initial state to be in a horizontal posture (a solid line position in fig. 4), the sealing film 634 is bent downwards to be in a sealing state (a dotted line 634' position in fig. 4) after being subjected to downward pressure of the sealing ram 645, the sealing film 634 seals the workpiece opening at the lowest point in fig. 4, the sealing ram 645 is lifted and retracted after detection is completed, the sealing film 634 tends to return to the horizontal posture under the action of self tension and the winding tangential force of the material receiving roll 633, so that the sealing film 634 is automatically peeled off from the workpiece opening, the material receiving roll 633 is continuously wound, the used sealing film 634 is wound and recovered, the cleanliness of a workshop is ensured, a sealing station can be vacated, and the sealing detection work of the next workpiece is conveniently and rapidly prepared.

In the embodiment shown in fig. 15, the two sides of the push-down sealing mechanism 64 are provided with sealing film guides 635 respectively located at the upstream and downstream of the sealing film 634, a sealing film guide groove 6351 with an open bottom is opened in the sealing film guide 635, and the sealing film 634 passes through the push-down sealing mechanism 64 under the guidance of the sealing film guide groove 6351, so that the sealing film 634 can continuously and precisely pass through the workpiece opening to be sealed, and finally the sealing film 634 is pressed and attached to the workpiece opening without sealing failure due to misalignment.

As a further improvement, the bottom opening diameter of the sealing film guiding groove 6351 is gradually reduced from bottom to top and forms a sealing film accommodating groove 6352 slightly wider than the sealing film 634 at the top.

Referring to the illustrations of fig. 16 to 19, a specific structure of the press-down type seal mechanism 64 is disclosed, the press-down type seal mechanism 64 including:

a press-down driver 641 fixedly mounted on the mounting upright plate 631;

a mounting substrate 642 which is in transmission connection with the power output end of the push-down actuator 641;

a ram mounting plate 643 fixedly mounted to the bottom of the mounting substrate 642; and

a sealing ram assembly slidingly coupled to a bottom of the ram mounting plate 643;

the pressure head mounting plate 643 and the sealing pressure head assembly are in sliding connection through at least two guide rods 6433; at least two linear bearings 6431 for longitudinal movement are disposed between the ram mounting plate 643 and the sealing ram assembly; at least two buffer components 6432 are elastically connected between the pressure head mounting plate 643 and the sealing pressure head assembly; the mounting substrate 642 is reciprocally lifted in the vertical direction by the down-pressure driver 641, thereby pushing the sealing film 634 under the sealing ram 645 onto the opening of the workpiece to be sealed.

With reference to fig. 13, as a further modification, the guide rods 6433 are provided with an even number and are arranged to be constituted by at least one guide subset, each guide subset including a pair of guide rods 6433 arranged diagonally on the ram mounting plate 643. In the embodiment shown in fig. 8 and 9, the press-down sealing mechanism 64 further includes a press-down driver 641, and a power output end of the press-down driver 641 is in transmission connection with the mounting substrate 642, so that the mounting substrate 642 can be lifted and lowered back and forth in a vertical plane under the driving of the press-down driver 641.

As a further modification, the buffer members 6432 are provided with an even number and arranged to be constituted by at least one buffer subset each including a pair of buffer members 6432 arranged diagonally on the ram mounting plate 643, wherein a line between any pair of buffer members 6432 intersects a line between at least one pair of guide rods. Therefore, in the process of buffering compression, the shrinkage change degree of the space between the sealing head assembly and the pressure head mounting plate 643 can be kept consistent, and uneven pressing pressure finally transmitted to the sealing head assembly due to the fact that the sealing head assembly rolls over and/or inclines relative to the pressure head mounting plate 643 is prevented.

Fig. 16 to 17 show the specific structure of the sealing ram assembly:

the sealing ram assembly comprises:

a mounting base 644 slidably coupled to a bottom of the ram mounting plate 643, a mounting portion 6442 formed to extend downward in a downward hanging manner, and a ram accommodating groove 6445 having an open bottom formed in the mounting portion 6442; and

a sealing ram 645 engaged in the ram receiving groove 6445;

a replacement opening 6446 communicated with the outside is formed beside the pressure head accommodating groove 6445, and the sealing pressure head 645 enters and exits the pressure head accommodating groove 6445 through the replacement opening 6446 to complete the installation and replacement of the sealing pressure head 645.

Referring to fig. 16, the mounting base 644 has at least two relief recesses 6441 formed therein, each relief member 6432 being at least partially received in a respective one of the relief recesses 6441.

Referring to fig. 16, a ram retaining member 645 is detachably mounted to a side of the mounting portion 6442, and after the sealing ram 645 is mounted in the ram accommodating groove 6445, the ram retaining member 645 is mounted at a position opposite to the replacement port 6446 such that at least a portion of the ram retaining member 645 is retained against an exposed side surface of the sealing ram 645.

As a further modification, the ram abutting element 645 includes a fitting portion 6461 and an abutting portion 6462, and the size of the abutting portion 6462 is matched with the replacement port 6446 so that the abutting portion 6462 can intrude into the replacement port 6446.

As a further improvement, opposite side surfaces of the sealing ram 645 are respectively formed with protruding portions 6451, and the inside wall of the ram accommodating groove 6445 is formed with a catching groove 6447 extending from the replacement opening 6446 to the inside of the ram accommodating groove 6445, wherein the cross-sectional size of the catching groove 6447 is adapted to the cross-sectional size of the protruding portions 6451, so that each of the protruding portions 6451 can slide along a corresponding one of the catching grooves 6447 when the sealing ram 645 moves in and out of the ram accommodating groove 6445.

As a further improvement, a vacuum suction nozzle 6453 is formed at the bottom of the sealing ram 645, and a vacuum passage 6452 is extended into the mounting base 644 and communicated with the vacuum suction nozzle 6453.

As a further improvement, an exposed end of the vacuum air passage 6452 on the mounting base 644 is communicated with a vacuum generator 6443.

As a further improvement, a sealing layer made of elastic and/or flexible material is formed at the bottom of the sealing ram 645, so that when the sealing ram 645 performs a pressing operation, the product can be protected by buffering, and an excessive impact force can be prevented.

Referring to fig. 21 to 28, at least two parallel sliding guide rails 6121 are disposed on the carrying platform 612, the lower sealing assembly is slidably coupled to the sliding guide rails 6121, and a carrier driver 6123 in transmission connection with the lower sealing assembly is further disposed on the carrying platform 612; a feeding and discharging station 6126 and a sealing station 6125 are sequentially arranged on the sliding guide rail 6121 along the extension direction of the sliding guide rail 6121, and the lower sealing assembly is driven by the carrier driver 6123 to slide back and forth along the sliding guide rail 6121 so as to switch back and forth between the feeding and discharging station 6126 and the sealing station 6125. When the lower sealing assembly is located at the feeding and discharging station 6126, feeding operation is performed, after the feeding operation is completed, the carrier driver 6123 drives the lower sealing assembly to move to the sealing station 6125 for air tightness detection operation after the sealing operation is performed, and after the detection operation is completed, the lower sealing assembly returns to the feeding and discharging station 6126 again to perform discharging operation.

Further, the lower seal assembly includes:

a lower sealing mounting plate 624 slidably connected to said glide rail 6121, having a central portion 6241 formed thereon near the central region and lateral positioning slots 6242 arranged around said central portion 6241;

a plurality of lateral positioning assemblies 66 arranged in said lateral positioning slots 6242, said lateral positioning assemblies 66 being arranged so as to be made up of at least two lateral positioning subsets, each lateral positioning subset comprising a pair of oppositely disposed lateral positioning assemblies 66, a respective pair of lateral positioning assemblies 66 in each lateral positioning subset being disposed opposite one another;

at least three positioning nozzles 627 arranged in said central portion 6241; and

a first sealing ring 628 arranged at the edge of said central portion 6241 and enclosing said positioning nozzle 627 therein;

when a workpiece is placed in the area surrounded by the lateral positioning assembly 66, the workpiece is positioned to a preset position under the lateral positioning action of the lateral positioning assembly 66, then the positioning suction nozzle 627 performs suction positioning on the lower surface of the workpiece, and the first sealing ring 628 forms a seal with the lower surface of the workpiece.

Further, a lower blocking region 6281 corresponding to the workpiece opening is formed on the first sealing ring 628, and an air tightness detecting air passage 6243 leading to the top of the lower blocking region 6281 is opened in the lower sealing installation plate 624.

Further, a vacuum-pumping air passage 6244 is formed in the lower sealing mounting plate 624 to the positioning suction nozzle 627.

Further, the lateral positioning assembly 66 includes:

a side limit barrier 661 fixedly disposed in the lateral positioning slot 6242, on which a positioning through hole 662 penetrating through the upper and lower surfaces thereof is formed;

a positioning stopper 663 slidably provided in the positioning through-hole 662 in the vertical direction; and

a positioning return member 664 elastically supported on a lower surface of the positioning stopper 663;

the side surface of the positioning through hole 662 is opened with a lateral positioning slot 6621 communicated therewith, so that when the positioning block 663 is mounted in the lateral positioning slot 6621, at least the corresponding side surface of the positioning block 663 is exposed outwards from the lateral positioning slot 6621 and protrudes out of the corresponding side surface of the positioning block 663.

Further, the positioning stopper 663 includes:

a positioning body 6631 slidably coupled in the positioning through hole 662;

a blocking portion 6633 integrally formed at a side surface of the positioning main body 6631, the blocking portion 6633 being exposed to the outside through the lateral positioning groove 6621; and

a limiting portion 6632 fixedly connected to the bottom of the positioning main body 6631 and horizontally extending outwards along the X-axis direction;

the X axial width of the lateral positioning groove 6621 is smaller than the X axial width of the positioning main body 6631, and the X axial width of the positioning main body 6631 is larger than the X axial width of the lateral positioning groove 6621, so that the positioning main body 6631 cannot laterally displace through the lateral positioning groove 6621.

Further, a guide curved surface 6633 'smoothly transitioning to the inner side of the positioning through hole 662 is formed at the top of the blocking portion 6633 such that the thickness of the guide curved surface 6633' in the Y-axis direction is gradually increased in the top-to-bottom direction.

Therefore, in the positioning process, the guide curved surface 6633' can perform self-adaptive positioning on the workpiece within the set size range, and the positioning convenience is improved.

Further, the top of the positioning body 6631 protrudes at least partially upward to form a stopper portion 6634.

Further, at least two protruding ridges 6635 extending longitudinally are formed on the positioning main body 6631 on the side opposite to the lateral positioning groove 6621.

So that the frictional force between the positioning body 6631 and the positioning through-hole 662 can be reduced.

Further, be formed with on the spacing blend stop 661 of side and be located space 6622 of stepping down under locating hole 662, space 6622 of stepping down's X axle direction size is greater than locating hole 662X axle direction size. The relief space 6622 is used to provide a receiving space for the limit portion 6632 when the positioning and resetting component 664 is retracted.

Further, a second sealing ring 625 is disposed on the lower sealing mounting plate 624 and surrounds the lateral positioning assembly 66.

Further, the blocking portion 6633 is at least partially made of a soft and/or pliable material. To prevent damage to the workpiece after collision therewith.

Example 2

Fig. 29 to 32 illustrate embodiment 2 of the present invention, and embodiment 2 differs from embodiment 1 in that an upper seal assembly is illustrated, wherein the upper seal assembly includes:

an upper sealing mounting plate 621 fixedly mounted on the lower surface of the lower mounting plate 613, wherein an abdicating through-groove 6211 penetrating through the upper and lower surfaces thereof is formed so that the upper sealing mounting plate 621 is in an annular structure; and

an upper sealing framework 623 and an upper sealing ring 622 which are embedded in the lower surface of the upper sealing mounting plate 621 and arranged around the edge of the abdicating through groove 6211;

wherein, the lower surface of last sealed mounting panel 621 is seted up and is encircleed last sealed mounting groove 6212 that the edge of logical groove 6211 of stepping down arranged, go up sealed skeleton 623 detachably install in go up sealed mounting groove 6212, go up sealing washer 622 cover in go up sealed skeleton 623 and with go up sealed skeleton 623 concentric setting so that go up sealing washer 622 is in when going up sealed mounting groove 6212, go up sealing washer 622 be located go up sealed skeleton 623 with between the last sealed mounting panel 621.

When the upper sealing ring 622 is worn or the sealing ring matched with the upper sealing ring 622 needs to be replaced, the upper sealing framework 623 can be detached from the upper sealing installation groove 6212, and the original upper sealing ring 622 can be detached from the upper sealing framework 623 and then replaced with a new upper sealing ring 622.

As a further improvement, at least three connecting columns 6231 are disposed on the upper surface of the upper sealing framework 623, the connecting columns 6231 are disposed around the upper sealing framework 623, the upper sealing framework 623 is detachably connected to the upper sealing mounting plate 621 through the connecting columns 6231, and when the upper sealing ring 622 covers the upper sealing framework 623, a corresponding portion of the upper sealing ring 622 is sleeved on the connecting columns 6231.

As a further modification, a connecting through hole 6233 is formed in the connecting column 6231 to extend in the axial direction thereof, and the detachable connection with the upper seal mounting plate 621 is achieved by fitting a connecting member in the connecting through hole 6233.

As a further improvement, a guiding tangent plane 6232 arranged around a through hole is formed on the inner side of the upper surface of the upper sealing framework 623, the upper sealing ring 622 comprises a connecting section 6221, a transition section 6223, a suspension section 6222 and a sealing section 6224 which are connected in sequence from outside to inside, wherein when the upper sealing ring 622 covers the upper sealing framework 623, the connecting section 6221 is sleeved on the connecting column 6231, and the transition section 6223 is attached to the guiding tangent plane 6232.

The transition segment 6223 enables the overhanging segment 6222 to make a tangential transition, which can prevent premature failure of the joint between the overhanging segment 6222 and the connecting segment 6221 due to stress concentration during a long sealing operation, and can be clamped by the upper sealing skeleton 623 and the upper sealing mounting plate 621 more tightly to increase the contact area.

As a further improvement, the overhanging section 6222 depends downwardly from the bottom of the transition section 6223, and the sealing section 6224 extends radially from the inside of the bottom of the overhanging section 6222 to the inside of the through hole of the upper sealing skeleton 623 such that the lower surface of the sealing section 6224 is lower than the lower surface of the upper sealing skeleton 623.

So that the upper seal case 623 does not contact the seal face at the time of press-down sealing.

As a further improvement, the guide tangent plane 6232 forms an included angle α with the vertical direction, and the angle of the included angle α is 30 ° to 60 °.

As a further improvement, at least three lower guide posts 6212 are fixed to the lower surface of the upper sealing mounting plate 621 and arranged around the upper sealing frame 623 and the upper sealing ring 622.

As a further improvement, the upper sealing skeleton 623 is at least partially made of a rigid and/or stiff material. This enables upper seal skeleton 623 to provide stable support for upper seal ring 622.

As a further improvement, the upper seal ring 622 is at least partially made of a soft and/or pliable material. This allows the upper seal ring 622 to be adapted to deform according to the local dimensions of the sealing surface when applied to the sealing surface, thereby providing better sealing.

Example 3

Fig. 32 to 33 illustrate embodiment 3 of the present invention, and embodiment 3 differs from embodiment 2 or embodiment 1 in that a sealing mechanism 62 is illustrated, the sealing mechanism 62 includes an upper sealing assembly and a lower sealing assembly which are disposed opposite to each other in an up-down direction, and the upper sealing assembly includes:

an upper sealing mounting plate 621, wherein an abdicating through-groove 6211 is formed through the upper and lower surfaces of the upper sealing mounting plate 621 so that the upper sealing mounting plate 621 has an annular structure; and

the lower seal assembly includes:

a lower sealing mounting plate 624 having a central portion 6241 formed thereon proximate the central region and lateral positioning slots 6242 disposed about the central portion 6241;

when a workpiece is placed in the area surrounded by the lateral positioning assembly 66, the workpiece is positioned to a preset position under the lateral positioning action of the lateral positioning assembly 66, then the positioning suction nozzle 627 performs suction positioning on the lower surface of the workpiece, the first sealing ring 628 forms a seal on the lower surface of the workpiece, and then the upper sealing assembly is pressed down on the workpiece, so that the upper sealing ring 622 performs sealing on the periphery of the upper surface of the workpiece. The downward pressure provided by the upper seal assembly can further improve the sealing of the first seal ring 628 against the lower surface of the workpiece.

The number of apparatuses and the scale of the process described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.

The features of the different implementations described herein may be combined to form other embodiments not specifically set forth above. The components may be omitted from the structures described herein without adversely affecting their operation. Further, various individual components may be combined into one or more individual components to perform the functions described herein.

Furthermore, while embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in a variety of fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims

1. A full-automatic air tightness detection method is characterized by comprising the following steps:

step S1, providing a conveyor belt (7);

step S2, providing a carrying and transferring mechanism (4) which is arranged at the upstream of the conveyor belt (7) and can perform bidirectional feeding based on two sides of the conveyor belt (7);

step S3, providing a plurality of air tightness detection mechanisms (6) arranged at two sides of the conveyor belt (7);

and step S4, arranging a transfer manipulator (8) between each side of the conveyor belt (7) and the air tightness detection mechanism (6) on the corresponding side, wherein the transfer manipulator (8) is used for taking the workpiece to be detected off the conveying transfer mechanism (4) and sending the workpiece into the air tightness detection mechanism (6) for air tightness detection, and then taking the detected workpiece out of the air tightness detection mechanism (6) and placing the workpiece on the conveyor belt (7) for sending.

2. The fully automatic airtightness detection method according to claim 1, wherein in step S4, each transfer robot (8) takes out the detected workpiece from the airtightness detection mechanism (6) on the corresponding side and places it on the conveyor (7) to be delivered while removing the workpiece to be detected from the conveyance transfer mechanism (4).

3. The fully automatic tightness detection method according to claim 2, characterized in that said transfer robot (8) comprises:

a transfer beam (81) extending in a linear direction;

a sliding beam (82) which is connected with the transfer beam (81) in a sliding manner; and

a rotating assembly (83) which comprises a rotating base (832) connected with the sliding cross beam (82) in a sliding mode and a rotating mounting plate (831) connected with the rotating base (832) in a rotating mode;

wherein the extension direction of the sliding beam (82) is vertical to the transfer beam (81); a transfer driver for driving the sliding cross beam (82) to slide back and forth along the transfer cross beam (81) is arranged on the transfer cross beam (81); a sliding driver for driving the rotating base (832) to slide back and forth along the sliding beam (82) is arranged on the sliding beam (82); the rotating base (832) is provided with a rotating driver for driving the rotating mounting plate (831) to rotate.

4. The fully automatic airtightness detection method according to claim 2, wherein the conveyance transfer mechanism (4) includes:

a steering assembly (41), the steering assembly (41) comprising: the steering mechanism comprises a steering base (411), a steering cantilever (412) with one end rotatably connected with the steering base (411), and a steering driver (413) in transmission connection with the steering cantilever (412); and

two groups of transfer assemblies (42) symmetrically arranged at two sides of the steering assembly (41);

the other end of the steering cantilever (412) is provided with a material taking and placing module (414), and the steering cantilever (412) pulls the material taking and placing module (414) to switch between the two groups of transfer assemblies (42) in a reciprocating manner under the driving of the steering driver (413); each transfer robot (8) is opposite to the transfer assembly (42) of the corresponding side.

5. A method for fully automatic tightness detection according to claim 2, characterized in that said tightness detection means (6) comprise:

the mounting bracket (61), the mounting bracket (61) is sequentially provided with a driving assembly space (618), a sealing film supply space (617) and a pressing sealing space (615) at intervals from top to bottom;

a sealing film supply module (63) installed in the sealing film supply space (617), wherein a downward pressing type sealing mechanism (64) is fixedly installed in the sealing film supply module (63);

the lifting driver (65) is arranged in the driving assembly space (618), and the power output end of the lifting driver (65) is in transmission connection with the sealing film supply module (63); and

the lower sealing assembly and the upper sealing assembly are arranged in the pressing sealing space (615), and form a sealing mechanism (62);

wherein, the height dimension of the pressing sealing space (615) can expand or shrink along with the reciprocating lifting of the sealing film supply module (63) driven by the lifting driver (65), and simultaneously drives the lower sealing assembly to be matched with or separated from the upper sealing assembly; when the lower sealing assembly and the upper sealing assembly are combined to form sealing on partial workpieces, the lower pressing type sealing mechanism (64) drives the sealing pressure head (645) in the lower pressing type sealing mechanism to reciprocate and lift along the vertical direction so as to push the sealing film (634) below the sealing pressure head (645) to the opening of the workpiece to be sealed in the pressing sealing space (615).

6. The fully automatic airtightness detection method according to claim 5, wherein the mounting bracket (61) comprises:

at least three non-colinear arranged lifting guide posts (616);

a downward pressing mounting plate (613) movably sleeved on the lifting guide post (616); and

a fixed mounting plate (614) and a bearing platform (612) which are respectively and fixedly connected with the top and the bottom of the lifting guide column (616);

wherein the hold-down mounting plate (613) is located below the fixed mounting plate (614) and spaced from the fixed mounting plate (614) to form the sealing film supply space (617) therebetween; the press fit sealing space (615) is formed between the lower press fit plate (613) and the bearing platform (612); the drive assembly space (618) is formed above the fixed mounting plate (614); the lower surface of the lower pressure mounting plate (613) is provided with the upper sealing assembly; the lower seal assembly is mounted on the load-bearing platform (612).

7. The full-automatic airtightness detecting method according to claim 6, wherein the sealing film supply module (63) is continuously supplied with the sealing film (634) in a tension manner, and the push-down type sealing mechanism (64) is located right above a stepping path of the sealing film (634) such that the sealing ram (645) in the push-down type sealing mechanism (64) is opposed to the sealing film (634) therebelow; when the sealing film supply module (63) descends to a preset position and enables the lower sealing assembly and the upper sealing assembly to be combined to form sealing on a part of the workpiece, the lower pressing type sealing mechanism (64) drives the sealing pressure head (645) in the lower pressing type sealing mechanism to reciprocate and ascend along the vertical direction so as to push the sealing film (634) below the sealing pressure head (645) to the opening of the workpiece to be sealed in the pressing type sealing space (615).