CN114967585A - Control system capable of automatically switching cabins and automatically sealing and control method thereof - Google Patents

Abstract

The invention relates to a control system capable of automatically switching cabins and automatically sealing and a control method thereof, wherein the control system comprises a lower cavity, an upper cavity I, an upper cavity II, an upper cavity I driving module, an upper cavity II driving module and a PLC module; the upper cavity I is driven by the upper cavity I driving module to move between an upper cavity sealing position and an upper cavity I initial position; the upper cavity II is driven by the upper cavity II driving module to move between an upper cavity sealing position and an upper cavity II initial position; the upper cavity I driving module and the upper cavity II driving module are controlled by the PLC module, and automatic switching of the upper cavity I and the upper cavity II is realized; and an inflatable sealing ring is arranged at the top of the lower cavity and is controlled by a PLC module. The invention can quickly replace the upper cavity and automatically seal the upper cavity and the lower cavity, greatly reduces the time of exposing the content in the lower cavity in the air, improves the product quality, has simple operation, and reduces the labor intensity and the labor cost of workers.

Description

Control system capable of automatically switching cabins and automatically sealing and control method thereof

Technical Field

The invention belongs to the technical field of laser melting additive manufacturing, and particularly relates to a control system capable of automatically switching cabins and automatically sealing and a control method thereof.

Background

In the manufacturing process of the existing additive manufacturing equipment, different cabins of the equipment are usually required to be replaced according to different requirements (such as printing, powder cleaning and the like), and the replacement and sealing work of the different cabins are usually carried out by using a single motor or manpower, so that the time and the labor are wasted, and the operation is complicated. Frequent manual intervention causes the upper surface of the printed workpiece to be exposed to air for a long time, and the product quality is also seriously affected. Therefore, it is desirable to develop a control system and a control method thereof capable of automatically switching the chambers and automatically sealing the chambers.

Disclosure of Invention

The invention provides a control system capable of automatically switching cabins and automatically sealing and a control method thereof, aiming at the problems in the prior art.

The invention is realized in such a way that the control system capable of automatically switching cabins and automatically sealing comprises a lower cavity and an upper cavity, wherein the upper cavity is positioned above the lower cavity;

the control system comprises an upper cavity I, an upper cavity II, an upper cavity I driving module, an upper cavity II driving module and a PLC module; the upper cavity I is driven by the upper cavity I driving module to move between an upper cavity sealing position and an upper cavity I initial position, so that the upper cavity I and the lower cavity are aligned or separated; the upper cavity II is driven by the upper cavity II driving module to move between an upper cavity sealing position and an upper cavity II initial position, so that the upper cavity II and the lower cavity are aligned or separated; the upper cavity I driving module and the upper cavity II driving module are controlled by the PLC module to perform corresponding actions, and automatic switching between the upper cavity I and the upper cavity II is realized;

the top of the lower cavity is provided with an inflatable sealing ring, the inflatable sealing ring is connected with the PLC module through an inflatable sealing ring electromagnetic valve, and the sealing between the lower cavity and the upper cavity is realized through the control of the PLC module; a lower cavity bottom plate is arranged in the lower cavity and driven by a bottom plate driving module to move up and down; and the bottom plate driving module is controlled by the PLC module to perform corresponding actions.

In the above technical solution, preferably, the upper cavity-one driving module includes an upper cavity-one cylinder, an upper cavity-one forward solenoid valve, and an upper cavity-one backward solenoid valve, the output end of the PLC module is connected to the upper cavity-one cylinder through the upper cavity-one forward solenoid valve and the upper cavity-one backward solenoid valve, respectively, and the upper cavity-one cylinder is used for driving the upper cavity-one to move along the upper cavity-one guiding module; the upper cavity two driving module comprises an upper cavity two air cylinder, an upper cavity two forward solenoid valve and an upper cavity two backward solenoid valve, the output end of the PLC module is connected with the upper cavity two air cylinder through the upper cavity two forward solenoid valve and the upper cavity two backward solenoid valve respectively, and the upper cavity two air cylinder is used for driving the upper cavity two to move along the upper cavity two guiding module; the upper cavity I guide module and the upper cavity II guide module are vertically distributed above and below the upper cavity.

In the above technical solution, it is further preferable that the head and tail of the upper cavity one cylinder are provided with an upper cavity one cylinder in-place extending sensor and an upper cavity one cylinder in-place retracting sensor, the head and tail of the upper cavity two cylinder are provided with an upper cavity two cylinder in-place extending sensor and an upper cavity two cylinder in-place retracting sensor, and the upper cavity one cylinder in-place extending sensor, the upper cavity one cylinder in-place retracting sensor, the upper cavity two cylinder in-place extending sensor and the upper cavity two cylinder in-place retracting sensor are respectively connected to the input end of the PLC module; the upper cavity body-cylinder in-place extending sensor and the upper cavity body-cylinder in-place retracting sensor are respectively used for detecting the extending and retracting conditions of the upper cavity body-cylinder in-place and feeding back to the PLC module; the upper cavity two-cylinder in-place extending sensor and the upper cavity two-cylinder in-place retracting sensor are respectively used for detecting the in-place extending and retracting conditions of the upper cavity two-cylinder and feeding back the in-place extending and retracting conditions to the PLC module.

In the above technical solution, it is further preferable that the upper cavity one guide module includes an upper cavity one support rail set and an upper cavity one rail slider set, and the bottom of the upper cavity one is connected to the upper cavity one support rail set through the upper cavity one rail slider set, so that the upper cavity one can move back and forth along the upper cavity one support rail set; the upper cavity two guide module comprises an upper cavity two support track group and an upper cavity two track sliding block group, and the top of the upper cavity two is connected with the upper cavity two support track group through the upper cavity two track sliding block group, so that the upper cavity two can move back and forth along the upper cavity two support track group.

In the above technical solution, it is further preferable that the piston of the upper cavity one cylinder is connected to the upper cavity one through an upper cavity one connecting block, and the piston of the upper cavity two cylinder is connected to the upper cavity two through an upper cavity two connecting block.

In the above technical solution, preferably, the control system further includes an upper cavity one switching button and an upper cavity two switching button, where the upper cavity one switching button and the upper cavity two switching button are respectively connected to the input end of the PLC module through corresponding button contacts, so as to implement switching between the upper cavity one and the upper cavity two.

In the above technical solution, preferably, the first upper cavity and the second upper cavity in the PLC module have logic protection during the movement, and the bottom plate movement of the lower cavity and the switching movement of the upper cavity have logic protection, so that other actions cannot be operated when the actions being executed are not completed.

In the above technical scheme, preferably, the bottom plate driving module includes a Z-axis servo driver and a Z-axis servo motor, the Z-axis servo driver is respectively connected to the PLC module and the Z-axis servo motor, and the Z-axis servo driver is configured to receive an instruction from the PLC module and drive the Z-axis servo motor to move to drive the lower cavity bottom plate to move up and down.

In the above technical solution, it is further preferable that the PLC module is provided with corresponding fixed coordinate parameters at a Z-axis descending stop position where the Z-axis servo motor controls the lower cavity bottom plate to descend below the lower cavity, so as to implement execution of automatic operation.

In the above technical solution, it is further preferable that the PLC module is provided with a movement range output limit logic of the Z-axis servo motor; the moving range output limiting logic specifically comprises the following logic:

first, setting X: limiting the movement to a positive limit position; y: limiting the negative limit position of the movement; IN 1: actual position of Z-axis servo motor; IN 2: externally inputting a planning moving destination position; OUT 1: outputting a planned moving distance;

when the external input planned movement destination position IN2 is smaller than the movement limiting positive limit position X and larger than the movement limiting negative limit position Y, moving the Z-axis servo motor actual position IN1 to the external input planned movement destination position IN 2; when the external input planned movement destination position IN2 is larger than the movement limiting positive limit position X, the actual position IN1 of the Z-axis servo motor is moved to the movement limiting positive limit position X; when the external input planned movement destination position IN2 is smaller than the movement limiting negative limit position Y, the actual position IN1 of the Z-axis servo motor is moved to the movement limiting negative limit position Y.

In the above technical solution, it is further preferable that a soft limit limiting the movement range of the Z-axis servo motor is provided in the Z-axis servo driver.

A control method of a control system capable of automatically switching cabins and automatically sealing comprises a control method of switching an upper cavity into an upper cavity II and a control method of switching the upper cavity II into the upper cavity I;

the specific control method for switching the upper cavity into the second upper cavity is as follows:

s1, clicking a switching button of the upper cavity II;

s2, driving the lower cavity bottom plate to move to a Z-axis descending stop position by the Z-axis servo motor;

s3, after the Z shaft descends and stops the position to a certain position for a certain time, the electromagnetic valve of the inflatable sealing ring is powered off, and the inflatable sealing ring retracts after being powered off;

s4, after the solenoid valve of the inflatable sealing ring is de-energized for a certain time, the forward solenoid valve of the upper cavity is de-energized, the backward solenoid valve of the upper cavity is energized, and the cylinder of the upper cavity retracts;

s5, after the piston of the upper cavity I cylinder retracts to the position detected by the upper cavity I cylinder retraction position sensor for a certain time, the upper cavity II forward-moving electromagnetic valve is powered on, the upper cavity II backward-moving electromagnetic valve is powered off, and the upper cavity II cylinder extends out;

s6, when the piston of the upper cavity two cylinder extends out of the detection position of the upper cavity two cylinder extending in place sensor for a certain time, the electromagnetic valve of the inflatable sealing ring is electrified, and the inflatable sealing ring is inflated and expanded;

the specific control method for switching the upper cavity II to the upper cavity I is as follows:

s1, clicking a switching button of the upper cavity;

s2, driving the lower cavity bottom plate to move to a Z-axis descending stop position by the Z-axis servo motor;

s3, after the Z shaft descends and stops the position to a certain position for a certain time, the electromagnetic valve of the inflatable sealing ring is powered off, and the inflatable sealing ring retracts after being powered off;

s4, after the solenoid valve of the inflatable sealing ring is powered off for a certain time, the forward solenoid valve of the upper cavity II is powered off, the backward solenoid valve of the upper cavity II is powered on, and the cylinder of the upper cavity II retracts;

s5, after the piston of the upper cavity two cylinder retracts to the detection position of the upper cavity two cylinder retraction in-place sensor for a certain time, the upper cavity one forward solenoid valve is powered on, the upper cavity one backward solenoid valve is powered off, and the upper cavity one cylinder extends out;

s6, after the piston of the cylinder in the upper cavity extends out of the detection position of the sensor in the upper cavity and the cylinder in the upper cavity extends out in place for a certain time, the electromagnetic valve of the inflatable sealing ring is electrified, and the inflatable sealing ring is inflated and expanded.

The invention has the advantages and positive effects that:

1. after the control system is installed, the upper cavity of the equipment can be quickly replaced and the upper cavity and the lower cavity can be automatically sealed under the conditions of not disassembling a mechanical structure and not destroying the air tightness of the structure, so that the time of exposing the contents in the lower cavity in the air is greatly reduced, the surface pollution is reduced, and the product quality is improved.

2. The control system disclosed by the invention is controlled by the buttons, is simple to operate, can be safely used only by simple training, does not need other complex processes, reduces the learning cost of a user, is convenient for the user to operate, realizes simple switching treatment of replacing cavities with different functions on the same lower cavity content, and reduces the labor intensity and labor cost of workers.

3. According to the control system, the position condition of the air cylinder is fed back through the sensor and can be fed back to the PLC module in time, the air cylinder is controlled to perform corresponding actions, the cavity is ensured to be in place, and the sealing performance is good.

4. In the PLC module, logic protection exists between the upper cavity I and the upper cavity II in the moving process, so that other actions cannot be operated when the action being executed is not completed; the movement action of the bottom plate of the lower cavity body and the switching action of the upper cavity body have logic protection, so that the physical interference between the contents in the lower cavity body and the upper cavity body caused by the ascending of the bottom plate of the lower cavity body when the upper cavity body moves is avoided, and the use safety is improved.

Drawings

Fig. 1 is a schematic structural diagram of an upper cavity i, an upper cavity ii and a lower cavity provided in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a lower cavity and a bottom plate driving module according to an embodiment of the present invention;

FIG. 3 is an electrical schematic diagram of a control system provided by an embodiment of the present invention;

fig. 4 is a schematic flowchart of a control method for switching an upper cavity to an upper cavity two according to an embodiment of the present invention;

fig. 5 is a flowchart illustrating a control method for switching an upper cavity two to an upper cavity one according to an embodiment of the present invention.

In the figure: A. a PLC module; B. a Z-axis servo driver; C. a Z-axis servo motor; D. an upper cavity I; E. an upper cavity II; F. a lower cavity;

1. a switch button of the upper cavity body; 2. a second upper cavity switching button; 3. an air cylinder of the upper cavity extends out of the in-place sensor; 4. an upper cavity body-cylinder retraction in-place sensor; 5. the upper cavity two cylinders extend out of the in-place sensor; 6. the upper cavity two cylinder retracts to the in-place sensor; 7. a 24V DC power supply; 8. a PLC power interface; 9. a PLC input signal interface; 10. a PLC output signal interface; 11. a PLC communication interface; 12. a main power interface of the Z-axis servo driver; 13. the Z-axis servo driver controls a power interface; 14. a Z-axis servo driver communication interface; 15. a Z-axis servo driver motor single cable interface; 16. a Z-axis servo motor single cable interface; 17. the upper cavity I moves backwards to form an electromagnetic valve; 18. the upper cavity is a forward electromagnetic valve; 19. the second upper cavity moves backwards to the electromagnetic valve; 20. the second upper cavity moves forwards to form an electromagnetic valve; 21. an air-filled seal ring electromagnetic valve; 22. an air cylinder is arranged on the upper cavity; 23. an upper cavity two cylinder; 24. an inflatable seal ring; 25. a lower cavity floor; 26. the upper cavity body I supports the first track; 27. the upper cavity body I supports a second track; 28. the upper cavity is provided with a first track sliding block; 29. a second track sliding block of the upper cavity; 30. a track slide block III of the upper cavity; 31. a track slide block IV of the upper cavity; 32. the upper cavity II supports the first track; 33. the upper cavity II supports a second track; 34. the upper cavity II is provided with a first track sliding block; 35. a second track sliding block of the upper cavity body; 36. the upper cavity II is provided with a track slide block III; 37. the upper cavity II is provided with a track slide block IV; 38. a connecting block of the upper cavity body; 39. the upper cavity II is connected with a block; 40. a base platform; 41. a lead screw; 42. a belt; 43. a nut; 44. a frame is supported.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 3, an embodiment of the present invention provides a control system capable of automatically switching and sealing a cabin, including an upper cavity D, an upper cavity two E, a lower cavity F, an upper cavity one support rail set, an upper cavity one rail slider set, an upper cavity two support rail set, an upper cavity two rail slider set, an upper cavity one connection block 38, an upper cavity two connection block 39, an upper cavity one air cylinder 22, an upper cavity two air cylinder 23, an inflatable seal ring 24, a lower cavity bottom plate 25, a Z-axis servo motor C, PLC module A, Z axis servo driver B, a 24V dc power supply 7, an upper cavity one switching button 1, an upper cavity two switching button 2, an upper cavity one air cylinder extension in-place sensor 3, an upper cavity one air cylinder retraction in-place sensor 4, an upper cavity two air cylinder extension in-place sensor 5, an upper cavity two air cylinder retraction in-place sensor 6, An upper cavity one-backward electromagnetic valve 17, an upper cavity one-forward electromagnetic valve 18, an upper cavity two-backward electromagnetic valve 19, an upper cavity two-forward electromagnetic valve 20 and an air-filled sealing ring electromagnetic valve 21.

The upper cavity I D and the upper cavity II E are positioned above the lower cavity F; the bottom of the upper cavity I D is connected with an upper cavity I supporting track group (an upper cavity I supporting track I26 and an upper cavity I supporting track II 27) through an upper cavity I track slide block group (comprising an upper cavity I track slide block I28, an upper cavity I track slide block II 29, an upper cavity I track slide block III 30 and an upper cavity I track slide block IV 31), and a piston of an upper cavity I cylinder 22 is connected with the upper cavity I D through an upper cavity I connecting block 38, so that the upper cavity I D can be driven to move along the upper cavity I supporting track group when the piston of the upper cavity I cylinder 22 extends and retracts, and the alignment or separation of the upper cavity I D and the lower cavity F is realized; the top of the upper cavity II E is connected with an upper cavity II supporting track group (an upper cavity II supporting track I32 and an upper cavity II supporting track II 33) through an upper cavity II track slide block group (comprising an upper cavity II track slide block I34, an upper cavity II track slide block II 35, an upper cavity II track slide block III 36 and an upper cavity II track slide block IV 37), and a piston of the upper cavity II air cylinder 23 is connected with the upper cavity II E through an upper cavity II connecting block 39, so that the upper cavity II E can be driven to move along the upper cavity II supporting track group when the piston of the upper cavity II air cylinder 23 extends and retracts, and the alignment or separation of the upper cavity II E and the lower cavity F is realized.

The PLC module A comprises a PLC power interface 8, a PLC communication interface 11, a PLC input signal interface 9 and a PLC output signal interface 10.

The upper cavity one switching button 1 and the upper cavity two switching button 2 are respectively connected with the PLC input signal interface 9 through corresponding button contacts, and pressing or releasing actions of the buttons are converted into electric signals to enter the PLC input signal interface 9, so that switching of the upper cavity one D and the upper cavity two E is realized. The upper cavity one-cylinder extension in-place sensor 3 and the upper cavity one-cylinder retraction in-place sensor 4 are respectively used for detecting the extension and retraction in-place conditions of the upper cavity one-cylinder 22, the upper cavity two-cylinder extension in-place sensor 5 and the upper cavity two-cylinder retraction in-place sensor 6 are respectively used for detecting the extension and retraction in-place conditions of the upper cavity two-cylinder 23, and the upper cavity one-cylinder extension in-place sensor 3, the upper cavity one-cylinder retraction in-place sensor 4, the upper cavity two-cylinder extension in-place sensor 5 and the upper cavity two-cylinder retraction in-place sensor 6 are respectively connected with the PLC input signal interface 9 and are used for converting the detected corresponding cylinder piston position into an electric signal to enter the PLC input signal interface 9; the PLC output signal interface 10 is respectively connected with an upper cavity body one-cylinder 22 through an upper cavity body one-forward solenoid valve 18 and an upper cavity body one-backward solenoid valve 17, the PLC output signal interface 10 is respectively connected with an upper cavity body two-cylinder 23 through an upper cavity body two-forward solenoid valve 20 and an upper cavity body two-backward solenoid valve 19, and outputs current under specific conditions through PLC module A operation processing, and the cylinders of the corresponding cavities are respectively controlled to move forward and backward through corresponding solenoid valves.

The pneumatic sealing ring 24 is installed at the top of the lower cavity F, the PLC output signal interface 10 is connected with the pneumatic sealing ring 24 through the pneumatic sealing ring electromagnetic valve 21, the pneumatic sealing ring 24 is controlled to be inflated and deflated, and sealing between the lower cavity F and the upper cavity is achieved.

The Z-axis servo driver B comprises a Z-axis servo driver main power supply interface 12, a Z-axis servo driver control power supply interface 13, a Z-axis servo driver communication interface 14 and a Z-axis servo driver motor single cable interface 15; and the Z-axis servo motor C is provided with a Z-axis servo motor single cable interface 16. The PLC communication interface 11 is connected with a Z-axis servo driver communication interface 14 to realize data exchange between the PLC module A and the Z-axis servo driver B; and the Z-axis servo driver motor single cable interface 15 is connected with the Z-axis servo driver motor single cable interface 16.

Lower cavity bottom plate 25 reciprocates through Z axle servo motor C drive it, and is concrete, Z axle servo motor C passes through belt 42 and is connected with lead screw 41, drives lead screw 41 and rotates, lead screw 41 and screw 43 threaded connection, screw 43 installs on braced frame 44, lead screw 41's top is passed through the bearing and is connected with base platform 40, cavity bottom plate 25 down is installed at base platform 40 top, and when control Z axle servo motor C rotated, lead screw 41 rotated and oscilaltion around screw 43, and lead screw 41 drives base platform 40 and cavity bottom plate 25 down reciprocates.

The Z-axis servo driver main power interface 12 and the 24V direct-current power supply 7 are both connected with a 220V alternating-current power supply; the power supply device comprises an upper cavity body I switching button 1, an upper cavity body II switching button 2, an upper cavity body I cylinder extending-in-place sensor 3, an upper cavity body I cylinder retracting-in-place sensor 4, an upper cavity body II cylinder extending-in-place sensor 5, an upper cavity body II cylinder retracting-in-place sensor 6, a PLC power interface 8 and a Z-axis servo driver control power interface 13 which are all powered by a 24V direct-current power supply 7.

In the PLC module A, the upper cavity I D and the upper cavity II E have logic protection in the moving process, and the bottom plate 25 of the lower cavity has logic protection in the moving action and the switching action of the upper cavity, so that other actions cannot be operated when the executed action is not completed.

In the PLC module A, a Z-axis descending stop position at which the lower cavity bottom plate 25 is controlled by the Z-axis servo motor C to descend below the lower cavity F is provided with corresponding fixed coordinate parameters, so that execution of automatic operation action is realized.

The PLC module A is provided with a moving range output limiting logic of the Z-axis servo motor C, and the Z-axis servo motor C is guaranteed to rotate in the moving range. The moving range output limiting logic specifically comprises the following logic:

first, setting X: limiting the movement to a positive limit position; y: limiting the negative limit position of the movement; IN 1: the actual position of a Z-axis servo motor C; IN 2: externally inputting a planning moving destination position; OUT 1: outputting a planned moving distance;

when the external input planned movement destination position IN2 is smaller than the movement limiting positive limit position X and larger than the movement limiting negative limit position Y, moving the actual position IN1 of the Z-axis servo motor C to the external input planned movement destination position IN 2; when the external input planned movement destination position IN2 is greater than the movement limiting positive limit position X, moving the actual position IN1 of the Z-axis servo motor C to the movement limiting positive limit position X; when the external input planned movement destination position IN2 is smaller than the movement-restricting negative limit position Y, the actual position IN1 of the Z-axis servo motor C is moved to the movement-restricting negative limit position Y.

A soft limit for limiting the moving range of the Z-axis servo motor C is arranged in the Z-axis servo driver B, so that the problems of mechanical collision and the like are greatly avoided.

The PLC module A receives an upper cavity switching signal, the inflatable sealing ring 24 retracts automatically to remove the sealing state, the upper cavity D and the upper cavity E are switched automatically, after the upper cavity is aligned with the lower cavity F, the inflatable sealing ring 24 is sealed automatically, the upper cavity and the lower cavity are ensured to be in the sealing state, and the content of the lower cavity F is convenient to process on the next step.

The cabin is replaced by using the control system, so that the cabin is convenient for an equipment operator to use and is easy to accept. The PLC module A is used for controlling the movement of the upper cavity and the Z-axis servo motor C, and logic interlocking of positioning movement is added, so that the use safety is improved; the moving range of the program of the PLC module A is limited, so that the problem of mechanical collision is avoided; only two buttons are arranged on the control panel, so that the learning cost of a user is reduced, the user operation is facilitated, and the simple switching processing of the contents in the same lower cavity by replacing the upper cavities with different functions is realized.

The specific control process of the invention is as follows:

as shown in fig. 4, a specific control method for switching the upper cavity one D to the upper cavity two E is as follows:

s1, clicking a second switching button 2 of the upper cavity;

s2, driving the lower cavity bottom plate 25 to move to a Z-axis descending stop position by the Z-axis servo motor C;

s3, after the Z shaft descends to a stop position for 2 seconds, the electromagnetic valve 21 of the inflatable sealing ring is de-energized, and the inflatable sealing ring 24 is de-energized and retracted;

s4, after the electromagnetic valve 21 of the inflatable sealing ring is powered off for 2 seconds, the forward electromagnetic valve 18 of the upper cavity is powered off, the backward electromagnetic valve 17 of the upper cavity is powered on, and the cylinder 22 of the upper cavity retracts;

s5, when the piston of the upper cavity I cylinder 22 retracts to the detection position of the upper cavity I cylinder retraction position sensor 4 for 2 seconds, the upper cavity II forward-moving electromagnetic valve 20 is powered on, the upper cavity II backward-moving electromagnetic valve 19 is powered off, and the upper cavity II cylinder 23 extends out;

and S6, when the piston of the upper cavity two cylinder 23 extends out of the detection position of the upper cavity two cylinder extension in-place sensor 5 for 2 seconds, the pneumatic sealing ring electromagnetic valve 21 is electrified, and the pneumatic sealing ring 24 is inflated and expanded.

And completing the switching and sealing actions of the upper cavity I D to the upper cavity II E.

As shown in fig. 5, a specific control method for switching the upper cavity two E to the upper cavity one D is as follows:

s1, clicking a switching button 1 of the upper cavity;

s2, driving the lower cavity bottom plate 25 to move to a Z-axis descending stop position by the Z-axis servo motor C;

s3, after the Z axis is lowered to a stop position for 2 seconds, the electromagnetic valve 21 of the inflatable sealing ring is de-energized, and the inflatable sealing ring 24 is de-energized and retracted;

s4, after the electromagnetic valve 21 of the inflatable sealing ring is powered off for 2 seconds, the forward electromagnetic valve 20 of the upper cavity II is powered off, the backward electromagnetic valve 19 of the upper cavity II is powered on, and the air cylinder 23 of the upper cavity II retracts;

s5, when the piston of the upper cavity two cylinder 23 retracts to the detection position of the upper cavity two cylinder retraction position sensor 6 for 2 seconds, the upper cavity one forward solenoid valve 18 is powered on, the upper cavity one backward solenoid valve 17 is powered off, and the upper cavity one cylinder 22 extends out;

and S6, when the piston of the upper cavity, namely the cylinder 22, extends out of the detection position of the upper cavity, namely the cylinder extending out of the position sensor 3, for 2 seconds, the electromagnetic valve 21 of the inflatable sealing ring is electrified, and the inflatable sealing ring 24 is inflated and expanded.

And the switching and sealing actions of the upper cavity II E to the upper cavity I D are completed.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or some or all of the technical features may be equivalently replaced, and the modifications or the replacements may not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A control system capable of automatically switching cabins and automatically sealing comprises a lower cavity and an upper cavity, wherein the upper cavity is positioned above the lower cavity; the method is characterized in that:

the control system also comprises an upper cavity I driving module, an upper cavity II driving module and a PLC module; the upper cavity I is driven by the upper cavity I driving module to move between an upper cavity sealing position and an upper cavity I initial position, so that the upper cavity I and the lower cavity are aligned or separated; the upper cavity II is driven by the upper cavity II driving module to move between an upper cavity sealing position and an upper cavity II initial position, so that the upper cavity II and the lower cavity are aligned or separated; the upper cavity I driving module and the upper cavity II driving module are controlled by the PLC module to perform corresponding actions, and automatic switching between the upper cavity I and the upper cavity II is realized;

the top of the lower cavity is provided with an inflatable sealing ring, the inflatable sealing ring is connected with the PLC module through an inflatable sealing ring electromagnetic valve, and the sealing between the lower cavity and the upper cavity is realized through the control of the PLC module; a lower cavity bottom plate is arranged in the lower cavity and driven by a bottom plate driving module to move up and down; and the bottom plate driving module is controlled by the PLC module to perform corresponding actions.

2. The control system for automatically switching compartments and automatically sealing as claimed in claim 1, wherein: the upper cavity I driving module comprises an upper cavity I cylinder, an upper cavity I forward solenoid valve and an upper cavity I backward solenoid valve, the output end of the PLC module is respectively connected with the upper cavity I cylinder through the upper cavity I forward solenoid valve and the upper cavity I backward solenoid valve, and the upper cavity I cylinder is used for driving the upper cavity I to move along the upper cavity I guide module; the upper cavity two driving module comprises an upper cavity two air cylinder, an upper cavity two forward solenoid valve and an upper cavity two backward solenoid valve, the output end of the PLC module is connected with the upper cavity two air cylinder through the upper cavity two forward solenoid valve and the upper cavity two backward solenoid valve respectively, and the upper cavity two air cylinder is used for driving the upper cavity two to move along the upper cavity two guiding module; the upper cavity I guide module and the upper cavity II guide module are vertically distributed above and below the upper cavity.

3. The control system for automatically switching compartments and automatically sealing as claimed in claim 2, wherein: the head and tail parts of the upper cavity one cylinder are provided with an upper cavity one cylinder in-place extending sensor and an upper cavity one cylinder in-place retracting sensor, the head and tail parts of the upper cavity two cylinder are provided with an upper cavity two cylinder in-place extending sensor and an upper cavity two cylinder in-place retracting sensor, and the upper cavity one cylinder in-place extending sensor, the upper cavity one cylinder in-place retracting sensor, the upper cavity two cylinder in-place extending sensor and the upper cavity two cylinder in-place retracting sensor are respectively connected with the input end of the PLC module; the upper cavity body-cylinder in-place extending sensor and the upper cavity body-cylinder in-place retracting sensor are respectively used for detecting the extending and retracting conditions of the upper cavity body-cylinder in-place and feeding back to the PLC module; the upper cavity two-cylinder in-place extending sensor and the upper cavity two-cylinder in-place retracting sensor are respectively used for detecting the in-place extending and retracting conditions of the upper cavity two-cylinder and feeding back the in-place extending and retracting conditions to the PLC module.

4. The control system for automatically switching compartments and automatically sealing as claimed in claim 1, wherein: the control system further comprises an upper cavity body one-switching button and an upper cavity body two-switching button, wherein the upper cavity body one-switching button and the upper cavity body two-switching button are respectively connected with the input end of the PLC module through corresponding button contacts, and switching of the upper cavity body one and the upper cavity body two is achieved.

5. The control system for automatically switching compartments and automatically sealing as claimed in claim 1, wherein: the PLC module is characterized in that a first upper cavity and a second upper cavity are logically protected in the moving process, and the bottom plate movement action of the lower cavity and the switching action of the upper cavity are logically protected, so that other actions cannot be operated when the executed action is not completed.

6. The control system for automatically switching compartments and automatically sealing as claimed in claim 1, wherein: the bottom plate driving module comprises a Z-axis servo driver and a Z-axis servo motor, the Z-axis servo driver is respectively connected with the PLC module and the Z-axis servo motor, and the Z-axis servo driver is used for receiving instructions of the PLC module and driving the Z-axis servo motor to move to drive the lower cavity bottom plate to move up and down.

7. The automatically switchable compartment and self-sealing control system of claim 6, wherein: and a Z-axis descending stopping position of the cavity bottom plate below the lower cavity is controlled by the Z-axis servo motor in the PLC module to be provided with corresponding fixed coordinate parameters, so that the execution of automatic operation action is realized.

8. The automatically switchable compartment and automatically sealable control system of claim 6, wherein: the PLC module is internally provided with a movement range output limiting logic of a Z-axis servo motor; the moving range output limiting logic specifically comprises the following logic:

first, X: limiting the movement to a positive limit position; y: limiting the negative limit position of the movement; IN 1: actual position of Z-axis servo motor; IN 2: externally inputting a planning moving destination position; OUT 1: outputting a planned moving distance;

when the external input planned movement destination position IN2 is smaller than the movement limiting positive limit position X and larger than the movement limiting negative limit position Y, moving the Z-axis servo motor actual position IN1 to the external input planned movement destination position IN 2; when the external input planned movement destination position IN2 is larger than the movement limiting positive limit position X, the actual position IN1 of the Z-axis servo motor is moved to the movement limiting positive limit position X; when the external input planned movement destination position IN2 is smaller than the movement limiting negative limit position Y, the actual position IN1 of the Z-axis servo motor is moved to the movement limiting negative limit position Y.

9. The automatically switchable compartment and automatically sealable control system of claim 6, wherein: and a soft limit for limiting the moving range of the Z-axis servo motor is arranged in the Z-axis servo driver.

10. A control method using the control system for automatically switching the cabin and automatically sealing as claimed in any one of claims 1 to 9, characterized in that: the method comprises a control method for switching the upper cavity into the second upper cavity and a control method for switching the second upper cavity into the first upper cavity;

the specific control method for switching the upper cavity into the second upper cavity is as follows:

s1, clicking a switching button of the upper cavity II;

s2, driving the lower cavity bottom plate to move to a Z-axis descending stop position by the Z-axis servo motor;

s3, after the Z shaft descends and stops the position to a certain position for a certain time, the electromagnetic valve of the inflatable sealing ring is powered off, and the inflatable sealing ring retracts after being powered off;

s4, after the solenoid valve of the inflatable sealing ring is de-energized for a certain time, the forward solenoid valve of the upper cavity is de-energized, the backward solenoid valve of the upper cavity is energized, and the cylinder of the upper cavity retracts;

s5, after the piston of the upper cavity I cylinder retracts to the position detected by the upper cavity I cylinder retraction position sensor for a certain time, the upper cavity II forward-moving electromagnetic valve is powered on, the upper cavity II backward-moving electromagnetic valve is powered off, and the upper cavity II cylinder extends out;

s6, when the piston of the upper cavity two cylinder extends out of the detection position of the upper cavity two cylinder extending in place sensor for a certain time, the electromagnetic valve of the inflatable sealing ring is electrified, and the inflatable sealing ring is inflated and expanded;

the specific control method for switching the upper cavity II to the upper cavity I is as follows:

s1, clicking a switching button of the upper cavity;

s2, driving the lower cavity bottom plate to move to a Z-axis descending stop position by the Z-axis servo motor;

s3, after the Z shaft descends and stops the position to a certain position for a certain time, the electromagnetic valve of the inflatable sealing ring is powered off, and the inflatable sealing ring retracts after being powered off;

s4, after the solenoid valve of the inflatable sealing ring is powered off for a certain time, the forward solenoid valve of the upper cavity II is powered off, the backward solenoid valve of the upper cavity II is powered on, and the cylinder of the upper cavity II retracts;

s5, after the piston of the upper cavity two cylinder retracts to the detection position of the upper cavity two cylinder retraction in-place sensor for a certain time, the upper cavity one forward solenoid valve is powered on, the upper cavity one backward solenoid valve is powered off, and the upper cavity one cylinder extends out;

s6, after the piston of the cylinder in the upper cavity extends out of the detection position of the sensor in the upper cavity and the cylinder in the upper cavity extends out in place for a certain time, the electromagnetic valve of the inflatable sealing ring is electrified, and the inflatable sealing ring is inflated and expanded.

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