CN116907721A - Vacuum bellows check out test set - Google Patents

Abstract

The invention discloses a vacuum bellows detection device, which comprises: the accommodating device is used for defining an accommodating cavity, and the accommodating cavity is suitable for fixing the vacuum bellows; the pressure control device is suitable for detecting and adjusting the air pressure in the accommodating cavity; the displacement detection device is suitable for detecting the displacement of the capsule body of the vacuum capsule; and the control device is used for controlling the pressure control device to enable the inside of the accommodating cavity to reach preset detection air pressure and controlling the displacement detection device to detect the displacement of the diaphragm capsule body. Therefore, after the vacuum bellows is placed into the accommodating cavity by a tester, displacement data of the bellows body of the vacuum bellows are automatically detected by using the control device to control the vacuum bellows detection equipment, so that the tester does not need to manually operate the vacuum bellows detection equipment.

Description

Vacuum bellows check out test set

Technical Field

The invention relates to the field of sample testing, in particular to vacuum bellows detection equipment.

Background

In the related art, a vacuum bellows is composed of a plurality of bellows assemblies, for example, a vacuum bellows includes an upper bellows assembly and a lower bellows assembly, each of which includes: the diaphragm and the diaphragm box body, the diaphragm of the upper diaphragm box component and the diaphragm of the lower diaphragm box component are connected to form a vacuum gap, when the air pressure outside the vacuum diaphragm box changes, in order to balance the pressure born by the inner side and the outer side of the vacuum diaphragm box, the vacuum gap may vary in space size, resulting in movement of the bellows body of the upper bellows assembly relative to the bellows body of the lower bellows assembly, and, in accordance with the above characteristics, the vacuum bellows may be a component of an altimeter for the aircraft.

The existing device for testing the displacement of the diaphragm capsule body of the vacuum diaphragm capsule comprises a measuring base and an observing cover, a detecting person manually installs one diaphragm capsule component of the vacuum diaphragm capsule on the measuring base, the observing cover is required to be covered on the outer side of the vacuum diaphragm capsule, the manually assembled observing cover can lead to unreliable sealing between the observing cover and the measuring base, and accordingly the air pressure in the observing cover is changed in the testing process, and the testing data accuracy is affected.

And after the measuring base and the observation cover are assembled together, a detector needs to manually adjust the valve body to adjust the gas quantity entering or leaving the observation cover, and the detector needs to have higher eye-hand coordination capacity to ensure that the gas pressure in the observation cover is accurately adjusted to the preset test gas pressure, so that the operation difficulty of the test is increased. In addition, the detection personnel need to visualize the change of the displacement of the diaphragm capsule body and manually record the displacement data of the diaphragm capsule body, so that the data accuracy of the displacement of the diaphragm capsule body is too low, and the test efficiency is reduced.

Disclosure of Invention

The application provides vacuum bellows detection equipment for solving the technical problems of low accuracy of test data and low test efficiency caused by manual test of displacement of a bellows body.

The application provides a vacuum bellows detection device which adopts the following technical scheme: a containment device comprising a cavity assembly defining a containment cavity, the cavity assembly adapted to seal the containment cavity, the containment cavity adapted to secure a vacuum bellows therein; the pressure control device is connected with the cavity assembly and is suitable for filling or extracting gas into or from the accommodating cavity according to the air pressure in the accommodating cavity and the preset detection air pressure so as to detect and adjust the air pressure in the accommodating cavity; the displacement detection device is connected with the accommodating device and is suitable for detecting the displacement of the capsule body of the vacuum capsule; the control device is in communication connection with the accommodating device, the pressure control device and the displacement detection device, and is used for controlling the pressure control device to charge or exhaust gas into or from the accommodating cavity so as to enable the accommodating cavity to reach the preset detection air pressure, and controlling the displacement detection device to detect the displacement of the diaphragm capsule body.

Through adopting above-mentioned technical scheme, after the tester put into the chamber that holds with the vacuum bellows, through last bellows subassembly displacement data that uses controlling means control vacuum bellows check out test set automated inspection vacuum bellows, can make the tester need not manual operation vacuum bellows check out test set, compare with prior art, can reduce the required manual operation step of last bellows subassembly displacement of test vacuum bellows, thereby can improve the sealing reliability who holds the chamber, can reduce the operation degree of difficulty of adjusting the intracavity atmospheric pressure, still can reduce and see the influence of the precision of bellows subassembly displacement change to last bellows subassembly displacement data on, and then can solve the technical problem that the test data precision that the bellows subassembly displacement caused is low and the test efficiency is low on the manual test.

Preferably, the cavity assembly includes: hold body, sealing door and sealing member, hold the body and inject hold the chamber, hold the chamber and be in hold the lateral wall of body and be formed with uncovered opening, the sealing door rotationally locate hold the body and be suitable for opening or closing uncovered opening, the sealing member is located when the sealing door is closed uncovered opening hold the body with between the sealing door, just the sealing member encircles the open mouth sets up.

Through adopting above-mentioned technical scheme, hold body and sealing door can not completely separate, can ensure that sealing door and hold the contact position of body at every turn unanimous basically, can prevent that sealing door and the contact position who holds the body from changing too big sealing member that causes from sealing between sealing door to can prevent that gas from getting into or leaving the chamber through clearance between sealing member and sealing door and causing the atmospheric pressure that holds the intracavity to produce the change in the test process, and then can improve the data accuracy of diaphragm capsule body displacement test.

Preferably, the housing means further comprises a locking assembly adapted to unlock or lock the cavity assembly to open or seal the housing cavity.

Through adopting above-mentioned technical scheme, locking subassembly can be at the sealed locking cavity subassembly after holding the chamber of cavity subassembly, carries out the in-process of diaphragm capsule body displacement test at vacuum diaphragm capsule check out test set, and locking subassembly can avoid the cavity subassembly to receive the effect of holding the pressure differential between intracavity and the external environment as far as possible and open to can improve the sealed validity of cavity subassembly, and then can improve the data accuracy of diaphragm capsule body displacement test.

Preferably, the locking assembly includes: the locking piece comprises a pivoting part, a locking part and a driving part, wherein the pivoting part is fixedly connected with the locking part and the driving part, and the pivoting part is pivotally connected with the accommodating body; the pivot part is suitable for driving the locking part to rotate to a first position and a second position relative to the containing body, the locking part is suitable for being abutted against one end of the sealing door far away from the rotation axis of the sealing door in the first position, and the locking part is separated from the sealing door in the second position; the driving part is suitable for driving the pivoting part to rotate around the rotation axis of the pivoting part when being driven; the driving piece is connected and matched with the driving part and is suitable for driving the driving part to rotate around the rotation axis of the pivoting part.

By adopting the technical scheme, the driving part can enable the locking part to lock or unlock the sealing door when being driven by the driving part, so that the cavity assembly can be sealed or unlocked, the sealing door can be prevented from being separated from the accommodating body when the air pressure in the accommodating cavity changes, and the test can be ensured to be carried out smoothly.

Preferably, the driving member includes: the telescopic part is fixed at one end relative to the accommodating body, the other end of the telescopic part is in transmission connection with the driving part, the driving part is driven by the telescopic part to drive the pivoting part to rotate so as to drive the locking part to rotate to one of the first position and the second position, and the driving part is driven by the telescopic part to drive the pivoting part to rotate so as to drive the locking part to rotate to the other of the first position and the second position; the first air inlet pipe is suitable for being used for introducing air into the telescopic part so as to enable the telescopic part to extend, and the second air inlet pipe is suitable for being used for introducing air into the telescopic part so as to enable the telescopic part to shrink.

Through adopting above-mentioned technical scheme, the drive piece can drive division, can make locking subassembly control drive piece pack into the chamber with the vacuum bellows and close the sealing door after automatic locking sealing door, also can make locking subassembly control drive piece automatic unblock sealing door after the test is accomplished to can improve the degree of automation of vacuum bellows check out test set, simultaneously, through the drive power size of adjusting the drive piece, can change the locking force that locking portion acted on the sealing door, thereby can make the sealing door more suitable to the extrusion degree of sealing piece, and then can improve the seal effectiveness between sealing door and the sealing piece.

Preferably, the driving member further includes: a gas supply pipe and a control valve, the gas supply pipe being adapted to communicate with the first gas inlet pipe to supply gas to the first gas inlet pipe, and the gas supply pipe being adapted to communicate with the second gas inlet pipe to supply gas to the second gas inlet pipe; the control valve is connected with the air supply pipe, the first air inlet pipe and the second air inlet pipe, and the control valve is provided with an air outlet, and is configured to control the air supply pipe to be communicated with the first air inlet pipe and the air outlet to be communicated with the second air inlet pipe, and control the air supply pipe to be communicated with the second air inlet pipe and the air outlet to be communicated with the first air inlet pipe.

Through adopting above-mentioned technical scheme, through air supply pipe and control valve cooperation, the control valve can control the interior gas of air supply pipe and flow into first intake pipe and second intake pipe selectively, and the driving piece can use an air supply pipe to realize the technical effect that the drive expansion portion extends or contracts to can reduce the required air feed piece quantity of air feed to first intake pipe and second intake pipe, and then can reduce vacuum bellows check out test set's manufacturing cost, also can simplify the structure of vacuum bellows check out test set.

Preferably, the pressure control device is provided with a pressurizing piece and a vacuum piece, the pressurizing piece and the vacuum piece are communicated with the accommodating cavity, and the pressurizing piece is suitable for filling gas into the accommodating cavity to increase the air pressure in the accommodating cavity; the vacuum member is adapted to draw gas from the receiving chamber to reduce the pressure of the gas in the receiving chamber.

Through adopting above-mentioned technical scheme, the cooperation of pressure piece and vacuum spare is used can adjust the atmospheric pressure that holds the intracavity, can make the atmospheric pressure that holds the intracavity increase or reduce to can make the atmospheric pressure that holds the intracavity satisfy the test requirement.

Preferably, the pressure control device is further provided with an air pressure detection part and a first controller, the air pressure detection part is arranged in the accommodating cavity and is suitable for detecting air pressure in the accommodating cavity, the control device, the air pressure detection part, the pressurizing part and the vacuum part are all in communication connection with the first controller, and the first controller is suitable for controlling the operation of the pressurizing part and the vacuum part according to detection data of the air pressure detection part so as to adjust the air pressure in the accommodating cavity.

Through adopting above-mentioned technical scheme, after the atmospheric pressure detection spare obtains holding intracavity atmospheric pressure, pressure control device can control the work of pressure piece and vacuum spare according to the capsule body displacement test requirement of vacuum capsule to can make to hold the intracavity and reach the test atmospheric pressure of predetermineeing, vacuum capsule check out test set can adjust the intracavity atmospheric pressure of holding accurately, compare in manual control holds intracavity atmospheric pressure, use the operation degree of difficulty that vacuum capsule check out test set adjusted to hold intracavity atmospheric pressure lower.

Preferably, the displacement detection device is provided with a fixing piece, a displacement detection camera and a second controller, the fixing piece is arranged in the accommodating cavity and is provided with a clamping part, the clamping part is suitable for clamping and fixing the vacuum bellows, the displacement detection camera is suitable for being positioned at the outer side of the vacuum bellows and is suitable for shooting the vacuum bellows, the second controller is in communication connection with the displacement detection camera and the control device, and the second controller is suitable for determining the displacement of the bellows body according to the photo shot by the displacement detection camera.

Through adopting above-mentioned technical scheme, through the displacement value that uses displacement detection camera to detect the capsule body of vacuum capsule, replaced the measuring staff to obtain the displacement value of capsule body through the mode of seeing, reduced the required measuring staff quantity of the displacement value that obtains the capsule body, can reduce the observation error of displacement value simultaneously to can improve the test accuracy of the capsule body displacement test of vacuum capsule.

Preferably, the control device is provided with a third controller, the pressure control device is provided with a first controller for controlling the pressure control device to detect and adjust the air pressure in the accommodating cavity, the displacement detection device is provided with a second controller for controlling the displacement detection device to detect the displacement of the bellows body of the vacuum bellows, the third controller is in communication connection with the first controller and the second controller, the first controller and the second controller are controlled by the third controller to control the accommodating cavity to be sealed, the pressure control device adjusts the accommodating cavity to a preset test air pressure, and the displacement detection device is controlled to detect the displacement of the bellows body.

Through adopting above-mentioned technical scheme, the third controller can control locking subassembly, pressure control device and displacement detection device, can make vacuum bellows check out test set control locking subassembly, pressure control device and displacement detection device work in proper order according to the bellows body displacement test flow of vacuum bellows to can reach the technical effect that vacuum bellows check out test set accomplished the test automatically, reduce the required manual operation of test, improve the test efficiency of the bellows body displacement test of vacuum bellows.

In summary, the present application includes at least one of the following beneficial technical effects:

1. after the vacuum bellows is placed into the accommodating cavity by a tester, the control device is used for controlling the vacuum bellows detection equipment to automatically detect the displacement data of the upper bellows component of the vacuum bellows, so that the tester does not need to manually operate the vacuum bellows detection equipment, compared with the prior art, the manual operation steps required by the displacement of the upper bellows component of the vacuum bellows can be reduced, the sealing reliability of the accommodating cavity can be improved, the operation difficulty of adjusting the air pressure in the accommodating cavity can be reduced, the influence of the displacement change of the visual upper bellows component on the displacement data of the upper bellows component can be reduced, and the technical problems of low precision and low testing efficiency of the test data caused by the displacement of the upper bellows component in the manual test can be solved;

2. The driving part can be driven by the driving part, the locking component can control the driving part to automatically lock the sealing door after a tester loads the vacuum bellows into the accommodating cavity and closes the sealing door, and can also control the driving part to automatically unlock the sealing door after the test is completed, so that the automation degree of the vacuum bellows detection equipment can be improved, and meanwhile, the locking force of the locking part on the sealing door can be changed by adjusting the driving force of the driving part, so that the extrusion degree of the sealing door on the sealing part is more suitable, and the sealing effectiveness between the sealing door and the sealing part can be improved;

3. after the air pressure detection part obtains the air pressure in the accommodating cavity, the pressure control device can control the operation of the pressing part and the vacuum part according to the displacement test requirement of the capsule body of the vacuum capsule, so that the accommodating cavity can reach a preset test air pressure value, the vacuum capsule detection equipment can accurately adjust the air pressure in the accommodating cavity, and compared with the manual control of the air pressure in the accommodating cavity, the operation difficulty of adjusting the air pressure in the accommodating cavity by using the vacuum capsule detection equipment is lower;

4. by using the displacement detection camera to detect the displacement value of the capsule body of the vacuum capsule, the displacement value of the capsule body is obtained in a visual manner instead of a detection person, the number of detection persons required for obtaining the displacement value of the capsule body is reduced, and meanwhile, the observation error of the displacement value can be reduced, so that the test accuracy of the capsule body displacement test of the vacuum capsule can be improved.

Drawings

FIG. 1 is a schematic diagram of a bellows detection apparatus according to an embodiment of the present application;

FIG. 2 is a top view of a bellows detection apparatus according to an embodiment of the present application;

FIG. 3 is a schematic view of a containment device according to an embodiment of the application;

FIG. 4 is a schematic diagram of a pressure control device according to an embodiment of the present application;

FIG. 5 is a schematic diagram of a displacement detection device according to an embodiment of the present application;

FIG. 6 is a schematic diagram of a control device according to an embodiment of the present application;

FIG. 7 is a top view of a latch according to an embodiment of the present application;

fig. 8 is a schematic view of a locking element according to an embodiment of the application.

Reference numerals illustrate:

100. vacuum bellows detection equipment;

10. a housing device; 110. a cavity assembly; 111. a receiving chamber; 112. a housing body; 113. sealing the door; 114. a seal; 120. a locking assembly; 121. a locking member; 122. a pivoting portion; 123. a locking part; 124. a driving section; 125. a driving member; 126. a telescopic part; 127. a first air inlet pipe; 128. a second air inlet pipe; 129. an air supply pipe, 1210, a control valve;

20. a pressure control device; 201. a pressurizing member; 202. a vacuum member; 203. a first controller;

30. A displacement detection device; 301. a fixing member; 302. a displacement detection camera; 303. a second controller;

40. a control device; 401. a third controller; 402. an information display device; 403. instruction input means.

Detailed Description

The application is described in further detail below with reference to fig. 1-8.

The embodiment of the application discloses a vacuum bellows detection device 100, which is used for detecting displacement values of a bellows body of an upper bellows assembly relative to a bellows body of a lower bellows assembly of a vacuum bellows under different environmental pressures, wherein when the lower bellows assembly is fixed to the vacuum bellows detection device 100, the vacuum bellows detection device 100 acquires the displacement values of the bellows body by detecting the displacement values of the bellows body of the upper bellows assembly of the vacuum bellows. According to the method, a tester can calculate and acquire the displacement characteristic curve of the capsule body of the vacuum capsule under different environmental pressures according to the displacement values of the capsule body of the upper capsule assembly relative to the capsule body of the lower capsule assembly under different environmental pressures, and further, in some specific embodiments of the application, the vacuum capsule detection device 100 can automatically generate the displacement characteristic curve of the capsule body according to a related calculation formula after detecting the displacement values of the upper capsule assembly under different environmental pressures, so as to further improve the design efficiency of the vacuum capsule.

Referring to fig. 1-8, a vacuum bellows detection apparatus 100 includes: a housing means 10, a pressure control means 20, a displacement detection means 30 and a control means 40. The containment device 10 includes a housing assembly 110, the housing assembly 110 defining a containment chamber 111, the housing assembly 110 being adapted to seal the containment chamber 111, the interior of the containment chamber 111 being in communication with the external environment when the containment chamber 111 is opened by the housing assembly 110, at which time the air pressure within the containment chamber 111 is the same as the external environment air pressure, and a test person may place a bellows in the containment chamber 111 or remove the bellows from the containment chamber 111. The accommodating cavity 111 is suitable for fixing the vacuum bellows, specifically, the lower bellows assembly of the vacuum bellows is suitable for being fixed in the accommodating cavity 111, so that when the air pressure in the accommodating cavity 111 changes, the upper bellows assembly of the vacuum bellows can move freely, the vacuum bellows detection device 100 can detect the displacement of the upper bellows assembly of the vacuum bellows, and the detected displacement data of the upper bellows assembly of the vacuum bellows can be displacement data of a bellows body. When the accommodating chamber 111 is sealed, the inside of the accommodating chamber 111 is not communicated with the external environment, at this time, the air pressure in the accommodating chamber 111 can be changed, and the upper bellows assembly of the vacuum bellows moves relative to the lower bellows assembly to balance the air pressure inside and outside the vacuum bellows by adjusting the air pressure in the accommodating chamber 111.

And, the pressure control device 20 is connected with the accommodating device 10, the pressure control device 20 is suitable for filling or extracting air into the accommodating cavity 111 according to the air pressure in the accommodating cavity 111 and the preset detection air pressure, so as to detect and adjust the air pressure in the accommodating cavity 111, wherein the preset detection air pressure can be sent to the pressure control device 20 by the control device 40, or the preset detection air pressure can be stored in the pressure control device 20 in advance, the air pressure in the accommodating cavity 111 can be increased by filling air (such as air or shielding air) into the accommodating cavity 111, the air pressure in the accommodating cavity 111 can be reduced by extracting the air in the accommodating cavity 111, the air pressure in the accommodating cavity 111 can be detected by the pressure control device 20, so that the air pressure in the accommodating cavity 111 can be accurately adjusted to the preset test air pressure by the pressure control device 20, and the test accuracy of the vacuum bellows detecting device 100 can be improved.

Meanwhile, a displacement detecting device 30 is connected with the accommodating device 10, and the displacement detecting device 30 is adapted to detect displacement of the bellows body of the vacuum bellows. The control device 40 is in communication connection with both the pressure control device 20 and the displacement detection device 30, and the control device 40 is used for controlling the pressure control device 20 to charge or discharge gas into or from the accommodating cavity 111 so as to enable the accommodating cavity 111 to reach a preset detection air pressure, and controlling the displacement detection device 30 to detect the displacement of the bellows body. After the vacuum bellows is placed into the accommodating cavity 111 by a tester, the control device 40 is used for controlling the vacuum bellows detecting device 100 to automatically detect displacement data of an upper bellows component of the vacuum bellows, so that the tester does not need to manually operate the vacuum bellows detecting device 100.

Referring to fig. 1-3, the chamber body assembly 110 includes: the sealing door 113 is rotatably arranged on the accommodating body 112 and is suitable for opening or closing the opening, specifically, a hinge is arranged at one end of the sealing door 113, the hinge can be fixedly connected with the accommodating body 112, the sealing door 113 can rotate around the rotating axis of the hinge relative to the accommodating body 112, when the sealing door 113 rotates close to the accommodating body 112, the sealing door 113 can close the opening, and when the sealing door 113 rotates away from the accommodating body 112, the sealing door 113 can open the opening.

The sealing member 114 is located between the accommodating body 112 and the sealing door 113 when the sealing door 113 closes the open mouth, and the sealing member 114 is disposed around the open mouth. Wherein, sealing member 114 can be constructed as rubber seal, and rubber seal can be annular closed structure, and rubber seal can encircle in the open outside, and when sealing door 113 closed open, sealing door 113 and hold body 112 can the co-extrusion rubber seal, can seal between rubber seal and sealing door 113, the clearance between rubber seal and holding body 112 after the rubber seal is pressed to can make hold chamber 111 sealed. Therefore, the accommodating body 112 and the sealing door 113 cannot be completely separated, so that the contact positions of the sealing door 113 and the accommodating body 112 are basically consistent each time, and the unreliable sealing between the sealing element 114 and the sealing door 113 caused by overlarge change of the contact positions of the sealing door 113 and the accommodating body 112 can be prevented, and further, the change of the air pressure in the accommodating cavity 111 caused by the entering or leaving of the air pressure in the accommodating cavity 111 through the gap between the sealing element 114 and the sealing door 113 can be prevented, and the data accuracy of the displacement test of the capsule body can be improved.

Referring to fig. 1-3, the accommodating device 10 further includes a locking component 120, where the locking component 120 is adapted to unlock or lock the cavity component 110 so that the cavity component 110 unlocks or seals the accommodating cavity 111, and the locking of the cavity component 110 by the locking component 120 can prevent the opening of the cavity component 110 when the air pressure between the accommodating cavity 111 and the external environment is unbalanced, thereby preventing the air pressure in the accommodating cavity 111 from deviating from a preset test air pressure value in the test process, and further improving the accuracy of data of displacement test of the capsule body of the vacuum capsule.

Referring to fig. 1-3, 7, 8, the locking assembly 120 includes: the locking piece 121, the locking piece 121 includes a pivot portion 122, a locking portion 123 and a driving portion 124, the pivot portion 122 is fixedly connected with the locking portion 123 and the driving portion 124, preferably, the pivot portion 122, the locking portion 123 and the driving portion 124 are constructed as an integral molding piece, so that the molding difficulty of the locking piece 121 can be reduced. And, the pivot portion 122 is pivotally connected with the accommodating body 112, wherein the pivot portion 122 has a first pivot hole, the accommodating body 112 has a second pivot hole, and the pivot shaft sequentially passes through the first pivot hole and the second pivot hole to connect the pivot portion 122 and the accommodating body 112 together, and the pivot portion 122 is adapted to rotate around a central axis of the pivot shaft.

Moreover, the pivot portion 122 is adapted to drive the locking portion 123 to rotate to a first position and a second position relative to the accommodating body 112, and in the first position, the locking portion 123 is adapted to abut against an end of the sealing door 113 away from the rotation axis of the sealing door 113, and when the sealing door 113 closes the accommodating cavity 111 and the locking portion 123 is located at the first position, the locking portion 123 may abut against a side wall of the sealing door 113 away from the accommodating cavity 111, and the locking portion 123 may limit the sealing door 113 to move in a direction away from the accommodating cavity 111, so that the technical effect of locking the sealing door 113 by the locking assembly 120 through the locking portion 123 can be achieved. In the second position, the locking portion 123 is separated from the sealing door 113, and along the rotation path of the sealing door 113, any part of the structure of the locking portion 123 is not located in the area through which the sealing door 113 rotates, at this time, the locking portion 123 no longer limits the sealing door 113 to move in the direction away from the accommodating cavity 111, so that the technical effect of unlocking the sealing door 113 by the locking assembly 120 can be achieved.

Meanwhile, the driving portion 124 is adapted to drive the pivoting portion 122 to rotate about the rotation axis of the pivoting portion 122 when driven. Because the driving portion 124, the pivoting portion 122 and the locking portion 123 are configured as an integral piece, the driving portion 124, the pivoting portion 122 and the locking portion 123 can all rotate around the central axis of the pivot shaft, driving moment received by the driving portion 124 can be transmitted to the locking portion 123, so that the locking portion 123 acts on a contact position between the locking portion 123 and the sealing door 113, the driving force can push the sealing door 113 to move towards the containing cavity 111, so that the sealing door 113 can be in press fit with the sealing piece 114, extrusion force between the sealing door 113 and the sealing piece 114 can ensure that the sealing piece 114 reliably seals a gap between the sealing door 113 and the sealing piece 114, thereby preventing gas from flowing into or flowing out of the containing cavity 111 from the gap between the sealing door 113 and the sealing piece 114, improving sealing effectiveness of the cavity assembly 110, and further improving data accuracy of the bellows detection device 100. Further, after the locking member 121 unlocks the sealing door 113, the sealing member 114 is not pressed any more, the sealing member 114 can recover to deform, and the elastic force generated when the sealing member 114 recovers to deform can cause the sealing door 113 to spring open, so as to prompt the testing personnel to complete the testing, and meanwhile, the technical effect that the cavity assembly 110 automatically opens the accommodating cavity 111 after the testing is completed can be achieved.

Referring to fig. 1-3, the locking assembly 120 may further include: the driving member 125, the driving member 125 may include: the telescopic part 126, the first air inlet pipe 127 and the second air inlet pipe 128 are telescopic, one end of the telescopic part 126 is fixed relative to the accommodating body 112, the other end of the telescopic part is in transmission connection with the driving part 124, the driving part 124 is driven to rotate through the telescopic part 126 to drive the pivoting part 122 to rotate to one of the first position and the second position, and the driving part 124 is contracted through the telescopic part 126 to drive the pivoting part 122 to rotate to drive the locking part 123 to rotate to the other of the first position and the second position. The first air intake pipe 127 is adapted to intake air into the expansion portion 126 to extend the expansion portion 126, and the second air intake pipe 128 is adapted to intake air into the expansion portion 126 to retract the expansion portion 126.

The telescopic portion 126 may be configured as a cylinder, the cylinder has a piston cylinder and a piston rod, the piston cylinder defines a piston space, one end of the piston rod penetrates into the piston cylinder and extends into the piston space, the piston rod can move relative to the piston cylinder along an axial direction of the cylinder, and the overall length of the cylinder can be adjusted by adjusting the length of the piston rod extending into the piston space, so that the technical effect that the telescopic portion 126 is telescopic can be achieved. The one end that the piston rod was kept away from the piston rod can be connected with drive portion 124 transmission, and the one end that the piston rod was kept away from to the piston rod can hold body 112 relatively and fix, specifically, the driving piece 125 and hold body 112 all can be placed on the test pedestal, and the test pedestal can support driving piece 125 and hold body 112 to, through keeping away from the piston rod one end, hold body 112 all be fixed in on the test pedestal, can realize that the piston rod is kept away from the one end of piston rod and hold body 112 relatively fixed technological effect. By fixing one end of the expansion and contraction portion 126, when the expansion and contraction portion 126 is contracted, the other end of the expansion and contraction portion 126 can move relative to the accommodating body 112 to drive the driving portion 124 to move.

And, the end of the piston rod that stretches into in the piston space has a piston, and the piston separates the piston space into first piston space and second piston space, and first piston space is more far away from the one end of piston rod that is connected with drive portion 124 than the second piston space sets up.

The first air inlet pipe 127 and the second air inlet pipe 128 are respectively communicated with the first piston space and the second piston space, when the first air inlet pipe 127 provides air into the first piston space, the air pressure in the first piston space is increased, the air pressure in the first piston space is larger than the air pressure in the second piston space, the first piston space can push the piston to enable the piston to drive the piston rod to extend out of the piston cylinder, the length of the cylinder is increased, when the cylinder stretches, the rotating direction of the piston rod to drive the driving part 124 is the same as the direction of the locking part 123 from the first position to the second position, and the cylinder can drive the driving part 124 to drive the locking part 123 to move to the second position so as to unlock the sealing door 113. When the cylinder is extended and the rotation direction of the piston rod driving the driving part 124 is the same as the direction in which the locking part 123 is rotated from the second position to the first position, the cylinder may drive the driving part 124 to drive the locking part 123 to move to the first position to lock the sealing door 113.

Similarly, when the second air inlet pipe 128 supplies air into the second piston space, the air pressure in the second piston space is increased, the air pressure in the second piston space is greater than the air pressure in the first piston space, the second piston space can push the piston to enable the piston to drive the piston rod to extend into the piston cylinder, the length of the cylinder is shortened, and when the cylinder is contracted, the rotating direction of the piston rod to drive the driving part 124 is the same as the direction in which the locking part 123 rotates from the first position to the second position, the cylinder can drive the driving part 124 to drive the locking part 123 to move to the second position so as to unlock the sealing door 113. When the cylinder is contracted, the piston rod drives the driving part 124 to rotate in the same direction as the locking part 123 rotates from the second position to the first position, and the cylinder can drive the driving part 124 to drive the locking part 123 to move to the first position to lock the sealing door 113. The rotation directions of the driving portion 124 are opposite when the extension and retraction portion 126 extends and retracts, so that the extension and retraction portion 126 can drive the locking portion 123 to move between the first position and the second position by the extension and retraction driving portion 124.

Referring to fig. 1-3, the driver 125 may further include: a gas supply pipe 129 and a control valve 1210, the gas supply pipe 129 being adapted to communicate with the first gas inlet pipe 127 to supply gas to the first gas inlet pipe 127, the gas supplied by the gas supply pipe 129 to the first gas inlet pipe 127 being allowed to flow into the first piston space through the first gas inlet pipe 127 to increase the length dimension of the telescopic portion 126. And, the gas supply pipe 129 is adapted to communicate with the second gas inlet pipe 128 to supply gas to the second gas inlet pipe 128, and the gas supplied from the gas supply pipe 129 to the second gas inlet pipe 128 can flow into the second piston space through the second gas inlet pipe 128 to shorten the length dimension of the expansion and contraction portion 126. In some specific embodiments, the air inlet end of the air supply pipe 129 may be connected to an air pump through which air is supplied to the air supply pipe 129, and the air supply pipe 129 may guide the air supplied to the air supply pipe 129 to the first air inlet pipe 127 or the second air inlet pipe 128. Of course in other embodiments, the inlet end of the gas supply pipe 129 may be in communication with a test laboratory gas supply pipe 129 piping system, which gas supply pipe 129 piping system may supply gas to the gas supply pipe 129.

The control valve 1210 is connected to the air supply pipe 129, the first air intake pipe 127 and the second air intake pipe 128, and the control valve 1210 has an exhaust port, the control valve 1210 being configured to control the air supply pipe 129 to communicate with the first air intake pipe 127 and to communicate the second air intake pipe 128 with the exhaust port, at which time the air supply pipe 129 is blocked from the second air intake pipe 128, and the control valve 1210 being further configured to control the air supply pipe 129 to communicate with the second air intake pipe 128 and to communicate the first air intake pipe 127 with the exhaust port, at which time the air supply pipe 129 is blocked from the first air intake pipe 127.

When the control valve is provided with an exhaust port, the control valve 1210 may be a two-position four-way solenoid valve, where the two-position four-way solenoid valve has a valve seat and a valve core, the valve seat has an air inlet, a first air outlet, a second air outlet and an exhaust port, the air supply pipe 129 is connected with the air inlet, the first air inlet pipe 127 is connected with the first air outlet, and the second air inlet pipe 128 is connected with the second air outlet.

When the valve core is communicated with the air inlet and the first air outlet, the valve core can block the air flow path between the air inlet and the second air outlet, and the valve core can be communicated with the air flow path between the air outlet and the second air outlet, so that air cannot flow between the air inlet and the second air outlet, the technical effects that the air supply pipe 129 is communicated with the first air inlet pipe 127 and the air supply pipe 129 is blocked with the second air inlet pipe 128 can be achieved, the air supply pipe 129 can supply air to the first air inlet pipe 127 through the control valve 1210 so that the driving part 124 stretches, and when the second piston space is compressed, air in the second piston space can be sequentially discharged to the outdoor environment through the second air inlet pipe 128 and the air outlet, and therefore the air pressure in the second piston space can be reduced, and the influence of the air pressure in the second piston space on the stretching action of the driving part 124 can be reduced.

When the valve core is communicated with the air inlet and the second air outlet, the valve core can block the air flow path between the air inlet and the first air outlet, and the valve core can be communicated with the air flow path between the air outlet and the first air outlet, so that air cannot flow between the air inlet and the first air outlet, the technical effects that the air supply pipe 129 is communicated with the second air inlet pipe 128 and the air supply pipe 129 is blocked with the first air inlet pipe 127 can be achieved, the air supply pipe 129 can supply air to the second air inlet pipe 128 through the control valve 1210 so that the driving part 124 is contracted, and when the first piston space is compressed, air in the first piston space can be sequentially discharged to the outdoor environment through the first air inlet pipe 127 and the air outlet, and therefore the air pressure in the first piston space can be reduced, and the influence of the air pressure in the first piston space on the contraction action of the driving part 124 can be reduced.

In other embodiments, when the control valve is provided with two exhaust ports, the control valve 1210 may be a two-position five-way solenoid valve. The two-position five-way electromagnetic valve is provided with a valve seat and a valve core, the valve seat is provided with an air inlet, a first air outlet, a second air outlet, a first air outlet and a second air outlet, the air supply pipe 129 is connected with the air inlet, the first air inlet pipe 127 is connected with the first air outlet, and the second air inlet pipe 128 is connected with the second air outlet.

When the valve core is communicated with the air inlet and the first air outlet, the valve core can block the air flow path between the air inlet and the second air outlet, and the valve core can be communicated with the air flow path between the second air outlet and the second air outlet, when the second piston space is compressed, air in the second piston space can be sequentially discharged to the outdoor environment through the second air inlet pipe 128 and the second air outlet, so that the air pressure in the second piston space can be reduced, and the influence of the air pressure in the second piston space on the extension action of the driving part 124 can be reduced.

When the valve core is communicated with the air inlet and the second air outlet, the valve core can block the air flow path between the air inlet and the first air outlet, and the valve core can be communicated with the air flow path between the first air outlet and the first air outlet, when the first piston space is compressed, air in the first piston space can be sequentially discharged to the outdoor environment through the first air inlet pipe 127 and the first air outlet, so that the air pressure in the first piston space can be reduced, and the influence of the air pressure in the first piston space on the contraction action of the driving part 124 can be reduced.

Through the cooperation of the air supply pipe 129 and the control valve 1210, the control valve 1210 can control the air in the air supply pipe 129 to selectively flow into the first air inlet pipe 127 and the second air inlet pipe 128, and the driving piece 125 can use one air supply pipe 129 to realize the technical effect of driving the expansion part 126 to expand or contract, so that the number of air supply pieces required for supplying air to the first air inlet pipe 127 and the second air inlet pipe 128 can be reduced, the production cost of the vacuum bellows detection device 100 can be reduced, and the structure of the vacuum bellows detection device 100 can be simplified.

In addition, the air supply flow and/or air supply pressure of the driving member 125 can be adjusted, the driving force received by the driving portion 124 can be adjusted by adjusting the air supply flow and/or air supply pressure of the driving member 125, and then the locking force applied by the locking portion 123 to the sealing door 113 can be adjusted, so that the locking force applied by the sealing door 113 can be more suitable, the sealing door 113 can be reliably abutted against the sealing member 114 all the time in the testing process, the sealing effect of the accommodating body 112 can be improved, the accuracy of test data of the vacuum bellows detection device 100 can be improved, and further the displacement test error of the bellows body of the vacuum bellows can be reduced.

Referring to fig. 1, 2 and 4, the pressure control device 20 is provided with a pressurizing member 201 and a vacuum member 202, wherein the pressurizing member 201 and the vacuum member 202 are connected with the accommodating chamber 111, the pressurizing member 201 is suitable for filling air into the accommodating chamber 111 to increase the air pressure in the accommodating chamber 111, the pressurizing member 201 can be a pressurizing pump, the pressurizing pump can pump air from the external environment, air can be input into the accommodating chamber 111 after being pressurized by the pressurizing pump, and the air pressure increase in the accommodating chamber 111 can be adjusted by adjusting the input amount of air in the accommodating chamber 111. Of course, in other embodiments, the pressurizing member 201 may be a high-pressure gas pipeline system in the test laboratory, and the high-pressure gas pipeline system may input gas (such as air or shielding gas) into the accommodating cavity 111 to increase the air pressure of the accommodating cavity 111.

The vacuum member 202 is adapted to draw air from the accommodating chamber 111 to reduce the air pressure in the accommodating chamber 111, wherein the vacuum member 202 may be a vacuum pump, and the vacuum pump may draw air from the accommodating chamber 111 and then discharge the air into the external environment, and the air pressure reduction in the accommodating chamber 111 may be adjusted by adjusting the output amount of air from the accommodating chamber 111. Of course, in other embodiments, the vacuum element 202 may also be a negative pressure gas pipe system in the test laboratory, and the negative pressure gas pipe system may pump the air in the accommodating cavity 111 to reduce the air pressure in the accommodating cavity 111. Thus, by matching the pressurizing member 201 and the vacuum member 202, the air pressure in the accommodating chamber 111 can be flexibly adjusted, and the air pressure in the accommodating chamber 111 can be increased or decreased, so that the air pressure in the accommodating chamber 111 can meet the test requirements.

Referring to fig. 1, 2 and 4, in some embodiments of the present application, the pressure control device 20 is further provided with a pressure detecting member and a first controller 203, where the pressure detecting member may be disposed in the accommodating cavity 111 and adapted to detect the pressure in the accommodating cavity 111, where the pressure detecting member may be a barometer, and a probe of the barometer may extend into the accommodating cavity 111 to obtain the pressure change of the accommodating cavity 111, and further the barometer may output a corresponding electrical signal according to the pressure of the accommodating cavity 111, for example, in some specific embodiments, the pressure detecting member may be a high-precision and high-sensitivity silicon resonant sensor. The control device 40, the air pressure detecting member, the pressurizing member 201 and the vacuum member 202 are all in communication connection with a first controller 203, and the first controller 203 is adapted to control the operation of the pressurizing member 201 and the vacuum member 202 according to the detection data of the air pressure detecting member so as to adjust the air pressure in the accommodating chamber 111. After the air pressure detection part obtains the air pressure in the accommodating cavity 111, the pressure control device 20 can control the operation of the pressure applying part 201 and the vacuum part 202 according to the displacement test requirement of the capsule body of the vacuum capsule, so that the preset test air pressure can be achieved in the accommodating cavity 111, the vacuum capsule detection equipment 100 can accurately adjust the air pressure in the accommodating cavity 111, and compared with the manual control of the air pressure in the accommodating cavity 111, the operation difficulty of adjusting the air pressure in the accommodating cavity 111 by using the vacuum capsule detection equipment 100 is lower. The control device 40 is adapted to control the first controller 203 to control the operation of the pressurizing member 201 and the vacuum member 202 based on the detection data of the air pressure detecting member.

Referring to fig. 1, 2 and 5, in some embodiments of the present application, the displacement detecting device 30 is provided with a fixing member 301, a displacement detecting camera 302 and a second controller 303, wherein the fixing member 301 may be disposed in the accommodating cavity 111 and have a clamping portion, which may be configured as a chuck or the like, and the clamping portion is adapted to clamp and fix the vacuum bellows, in particular, the clamping portion may clamp a lower bellows assembly of the vacuum bellows, so that an upper bellows assembly of the vacuum bellows may be freely moved.

The displacement detection camera 302 is adapted to be located outside the evacuated capsule and adapted to take a photograph of the evacuated capsule, the second controller 303 is in communication with both the displacement detection camera 302 and the control device 40, the second controller 303 is adapted to determine a displacement of the capsule body from the photograph taken by the displacement detection camera 302. The displacement detection camera 302 may first take a photograph of a position of the vacuum bellows at an initial air pressure in the accommodating cavity 111, then the displacement detection camera 302 may take a photograph of a position of the vacuum bellows at a preset test air pressure in the accommodating cavity 111, and the second controller 303 may compare the positions of feature points of the upper bellows assembly in the photograph of the position of the vacuum bellows before and after the test to obtain displacement data of the bellows body, where it is noted that the feature points of the upper bellows assembly may be selected from a free end of the upper bellows assembly (i.e., an end of the upper bellows assembly away from the lower bellows assembly), so that the displacement detection device 30 may accurately obtain the displacement data of the bellows body. By using the displacement detection camera 302 to detect the displacement value of the capsule body of the vacuum capsule, the displacement value of the capsule body is obtained in a visual manner instead of a detection person, the number of detection persons required for obtaining the displacement value of the capsule body is reduced, and meanwhile, the observation error of the displacement value can be reduced, so that the test accuracy of the capsule body displacement test of the vacuum capsule can be improved. The control device 40 may control the second controller 303 to acquire displacement data of the bellows body.

Further, the displacement detection camera 302 may be installed in the accommodating cavity 111, so that the detection accuracy of the displacement detection camera 302 is reduced due to the interference of the displacement detection camera 302 by the cavity assembly 110, in other embodiments, the displacement detection camera 302 may be installed at the outer side of the cavity assembly 110, the cavity assembly 110 has an observation window opposite to the displacement detection camera 302, and the displacement detection camera 302 may shoot a vacuum bellows in the accommodating cavity 111 from the outer side of the cavity assembly 110 to obtain displacement data of a bellows body of the vacuum bellows, so that debugging and maintenance of the displacement detection device 30 from the outer side of the cavity assembly 110 by a tester may be facilitated, and thus debugging difficulty of the displacement detection device 30 may be reduced. Further, to reduce the design cost of the vacuum bellows detection apparatus 100, in some embodiments, the displacement detection device 30 may be a "high-speed, high-precision digital micrometer" of the product LS-7600 series manufactured by "Kihn's company, which measures displacement data of the bellows body.

Referring to fig. 1, 2 and 6, in some embodiments of the present application, the control device 40 is provided with a third controller 401, where the first controller 203 and the second controller 303 of the third controller 401 are all communicatively connected, and in some specific embodiments, the pressure control device 20, the displacement detection device 30 and the control device 40 are all provided with RS-232 standard protocol interfaces, and the third controller 401 and the first controller 203 and the second controller 303 may be communicatively connected through a communication manner of RS-232 serial communication. The third controller 401 controls the first controller 203 and the second controller 303 to control the pressure control device 20 to adjust the inside of the accommodating cavity 111 to the preset test air pressure after the accommodating cavity 111 is sealed, specifically, the third controller 401 may control the first controller 203 to control the pressure control device 20 to adjust the inside of the accommodating cavity 111 to the preset test air pressure. And, after the pressure control device 20 adjusts the inside of the accommodating chamber 111 to a preset test air pressure, the third controller 401 controls the displacement detection device 30 to detect the displacement of the bellows body, specifically, the third controller 401 may control the second controller 303 to control the displacement detection device 30 to detect the displacement of the bellows body.

That is, the third controller 401 may be used to control the pressure control device 20 and the displacement detection device 30 integrally, so that the pressure control device 20 and the displacement detection device 30 work sequentially according to the bellows body displacement test procedure, thereby achieving the technical effect that the vacuum bellows detection device 100 automatically completes the test, reducing the manual operation required by the test, and improving the test efficiency of the bellows body displacement test of the vacuum bellows.

Referring to fig. 1, fig. 2, and fig. 6, the control device 40 may further be provided with an information display device 402 and an instruction input device 403, where the information display device 402 and the instruction input device 403 are both communicatively connected to the third controller 401, and the information display device 402 is adapted to display detection data of the bellows body of the vacuum bellows detection apparatus 100, specifically, the information display device 402 may be a display screen, where the detection data that may be displayed on the display screen includes at least one of a locking state of the locking assembly 120, a size of an air pressure in the accommodating cavity 111, an operating state of the pressurizing member 201 and the vacuum member 202, photo information of the vacuum bellows captured by the displacement detection camera 302, and displacement data of the bellows body detected by the displacement detection device 30, and in some preferred embodiments, all the detection data may be displayed on the display screen, and further, when the third controller 401 is adapted to calculate and obtain a displacement characteristic curve of the bellows body according to a related technical calculation formula and the detection data of the vacuum bellows detection apparatus 100, the information display device 402 may be used to display a displacement characteristic curve of the bellows body, and the information display device 402 may enable a detector to obtain detection data of the detection apparatus to further improve the vacuum bellows body, thereby enabling a detector to conveniently design the bellows body of the vacuum bellows body.

And, the command input means 403 is adapted to input a command to the third controller 401 to adjust the test parameters of the bellows detection apparatus 100. The command input device 403 may be a keyboard, a touch screen, a control knob, etc., and the test parameters of the bellows detection apparatus 100 may include a reference air pressure in the accommodating chamber 111, a preset test air pressure in the accommodating chamber 111, etc. The test parameters are input to the vacuum bellows detection device 100 by using the instruction input device 403 by a tester, so that the vacuum bellows detection device 100 can be suitable for detecting vacuum bellows of different types, the detection data of the vacuum bellows detection device 100 can be more comprehensive, and further, the displacement characteristic curve of the bellows body of the vacuum bellows obtained by the operator according to the detection data of the vacuum bellows detection device 100 can be more accurate. Of course, in other embodiments, the command input device 403 may also be used to input command input commands to the third controller 401 to manually control the bellows detection apparatus 100 to perform a test procedure. Further, the third controller 401, the information display device 402 and the instruction input device 403 may together form an industrial personal computer, that is, the third controller 401, the information display device 402 and the instruction input device 403 may be respectively used as part of the component structures of the industrial personal computer, and each part of the structures in the industrial personal computer are easy to cooperate with each other, so that a tester can operate the vacuum bellows detection apparatus 100 conveniently.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (10)

1. A vacuum bellows detection apparatus, comprising:

-a containment device (10), the containment device (10) comprising a cavity assembly (110), the cavity assembly (110) defining a containment cavity (111), the cavity assembly (110) being adapted to seal the containment cavity (111), the containment cavity (111) being adapted to hold a vacuum bellows therein;

the pressure control device (20), the said pressure control device (20) connects with said cavity assembly (110), the said pressure control device (20) is suitable for according to the said internal air pressure of holding the cavity (111) and presets and detects the air pressure to charge or withdraw the air to the said holding cavity (111) in order to detect and regulate the internal air pressure of the said holding cavity (111);

displacement detection means (30), said displacement detection means (30) being connected to said containment means (10), said displacement detection means (30) being adapted to detect displacement of the capsule body of said evacuated capsule;

the control device (40), the control device (40) with hold device (10), pressure control device (20) with displacement detection device (30) all communication connection, control device (40) are used for controlling pressure control device (20) are to hold chamber (111) in filling or take out gas so that hold chamber (111) in reach predetermine detect atmospheric pressure, and control displacement detection device (30) detects the displacement of diaphragm capsule body.

2. The evacuated capsule inspection device of claim 1, wherein the chamber assembly (110) comprises: hold body (112), sealing door (113) and sealing member (114), hold body (112) and inject hold chamber (111), hold chamber (111) and be in the lateral wall that holds body (112) is formed with uncovered opening, sealing door (113) rotationally locate hold body (112) and be suitable for opening or closing uncovered opening, sealing member (114) are located when uncovered opening hold body (112) with sealing member (113) between, just sealing member (114) encircle the open mouth sets up.

3. A bellows detection apparatus according to claim 2, wherein the receiving means (10) further comprises a locking assembly (120), the locking assembly (120) being adapted to unlock or lock the cavity assembly (110) such that the cavity assembly (110) opens or seals the receiving cavity (111).

4. A bellows detection apparatus according to claim 3, wherein the locking assembly (120) comprises: a locking member (121) and a driving member (125), wherein the locking member (121) comprises a pivoting portion (122), a locking portion (123) and a driving portion (124), the pivoting portion (122) is fixedly connected with both the locking portion (123) and the driving portion (124), and the pivoting portion (122) is pivotally connected with the accommodating body (112);

The pivoting part (122) is suitable for driving the locking part (123) to rotate relative to the containing body (112) to a first position and a second position, wherein the locking part (123) is suitable for abutting against one end of the sealing door (113) which is far away from the rotation axis of the sealing door (113), and the locking part (123) is separated from the sealing door (113) in the second position;

the driving part (124) is suitable for driving the pivoting part (122) to rotate around the rotation axis of the pivoting part (122) when being driven;

the driving piece (125) is connected and matched with the driving part (124) and is suitable for driving the driving part (124) to rotate around the rotation axis of the pivoting part (122).

5. The vacuum bellows detection apparatus of claim 4, wherein the drive member (125) includes: a telescopic part (126), a first air inlet pipe (127) and a second air inlet pipe (128), wherein one end of the telescopic part (126) is fixed relative to the accommodating body (112) and the other end of the telescopic part is in transmission connection with the driving part (124), the driving part (124) is driven by the telescopic part (126) to rotate by stretching, so that the locking part (123) is driven to rotate to one of the first position and the second position, and the driving part (124) is driven by the telescopic part (126) to rotate by shrinking, so that the locking part (123) is driven to rotate to the other one of the first position and the second position;

The first air inlet pipe (127) is suitable for being introduced into the telescopic part (126) to enable the telescopic part (126) to extend, and the second air inlet pipe (128) is suitable for being introduced into the telescopic part (126) to enable the telescopic part (126) to shrink.

6. The vacuum bellows detection apparatus of claim 5, wherein the drive member (125) further comprises: a gas supply pipe (129) and a control valve (1210), the gas supply pipe (129) being adapted to communicate with the first gas inlet pipe (127) to supply gas to the first gas inlet pipe (127), and the gas supply pipe (129) being adapted to communicate with the second gas inlet pipe (128) to supply gas to the second gas inlet pipe (128);

the control valve (1210) is connected with the air supply pipe (129), the first air inlet pipe (127) and the second air inlet pipe (128), and the control valve (1210) is provided with an air outlet, the control valve (1210) is configured to control the air supply pipe (129) to be communicated with the first air inlet pipe (127) and the air outlet to be communicated with the second air inlet pipe (128), and control the air supply pipe (129) to be communicated with the second air inlet pipe (128) and the air outlet to be communicated with the first air inlet pipe (127).

7. A bellows detection apparatus according to claim 1, wherein the pressure control device (20) is provided with a pressurizing member (201) and a vacuum member (202), the pressurizing member (201) and the vacuum member (202) each being in communication with the accommodating chamber (111), the pressurizing member (201) being adapted to charge gas into the accommodating chamber (111) to increase the gas pressure in the accommodating chamber (111); the vacuum element (202) is adapted to draw gas from the receiving chamber (111) to reduce the gas pressure in the receiving chamber (111).

8. The vacuum bellows detection apparatus according to claim 7, wherein the pressure control device (20) is further provided with an air pressure detection member and a first controller (203), the air pressure detection member is provided in the housing chamber (111) and adapted to detect air pressure in the housing chamber (111), the control device (40), the air pressure detection member, the pressurizing member (201) and the vacuum member (202) are all in communication connection with the first controller (203), and the first controller (203) is adapted to control the operation of the pressurizing member (201) and the vacuum member (202) according to detection data of the air pressure detection member so as to adjust air pressure in the housing chamber (111).

9. A vacuum bellows detection apparatus according to claim 1, wherein the displacement detection device (30) is provided with a fixing member (301), a displacement detection camera (302) and a second controller (303), the fixing member (301) is provided in the housing cavity (111) and has a clamping portion adapted to clamp and fix the vacuum bellows, the displacement detection camera (302) is adapted to be located outside the vacuum bellows and adapted to photograph the vacuum bellows, the second controller (303) is in communication connection with both the displacement detection camera (302) and the control device (40), and the second controller (303) is adapted to determine the displacement of the bellows body from a photograph taken by the displacement detection camera (302).

10. A vacuum bellows detection apparatus according to claim 1, wherein the control device (40) is provided with a third controller (401), the pressure control device (20) is provided with a first controller (203) for controlling the pressure control device (20) to detect and adjust the air pressure in the accommodating chamber (111), the displacement detection device (30) is provided with a second controller (303) for controlling the displacement detection device (30) to detect the displacement of the bellows body of the vacuum bellows, the third controller (401) is in communication connection with both the first controller (203) and the second controller (303), the first controller (203) and the second controller (303) are controlled by the third controller (401), the pressure control device (20) adjusts the accommodating chamber (111) to a preset test air pressure after the accommodating chamber (111) is sealed, and the displacement detection device (30) is controlled to detect the displacement of the bellows body.