CN216138823U - Sealing device's assembly fixture - Google Patents

Abstract

The utility model discloses an assembly tool of a sealing device, which comprises: connecting seat and advancing mechanism, connecting seat are held including the first end and the second that are linked together, and first end is used for connecting the gas port end of vacuum cavity, and the second end is used for connecting evacuating device, and advancing mechanism sets up on the connecting seat, including being used for dismantling connecting sealing device's connecting portion and being used for driving connecting portion to be close to in order to spacing the execution portion in the gas port end with sealing device through first end to the gas port end. Therefore, the sealing device can be assembled under the condition that the vacuum state of the vacuum cavity is not damaged.

Description

Sealing device's assembly fixture

Technical Field

The utility model relates to the technical field of equipment assembly, in particular to an assembly tool of a sealing device.

Background

Superconducting magnets are an important component of magnetic resonance imaging equipment. In general, a superconducting magnet is a vacuum pressure vessel, which needs to be evacuated before use, and then a sealing plug is plugged at a gas port end and welded with the gas port end to achieve sealing.

However, because the evacuation and the sealing share one air port end, if after the evacuation, the pipeline equipment of the evacuation device is detached from the air port end, and then the sealed air port end of the sealed blocking disc is installed, in the process of replacing the pipeline equipment of the evacuation device with the sealed blocking disc, external air can flow into the container through the air port end, and then the vacuum effect of the container is influenced.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an assembly tool for a sealing device, which can complete the assembly of the sealing device under the condition that the vacuum state of a vacuum cavity is not damaged.

According to an embodiment of an aspect of the present invention, there is provided an assembly tool for a sealing device, including: connecting seat and advancing mechanism, connecting seat are held including the first end and the second that are linked together, and first end is used for connecting the gas port end of vacuum cavity, and the second end is used for connecting evacuating device, and advancing mechanism sets up on the connecting seat, including being used for dismantling connecting sealing device's connecting portion and being used for driving connecting portion to be close to in order to spacing the execution portion in the gas port end with sealing device through first end to the gas port end.

Further, the connecting seat includes first body and the second body that one end and first body lateral wall are connected and communicate with first body, and first end is the one end in the first body both ends, and the second end is the other end of second body, and the other end of first body sets up to the third end, and the execution portion sets up in the third end, and connecting portion can drive sealing device and remove along the extending direction of first body in first body.

Further, the execution section includes: the installation department and drive division, installation department and third end sealing connection, the drive division sets up on the installation department keeps away from one side of third end, and the installation department is worn to locate by connecting portion to rotate with the drive division and be connected.

Further, the driving part includes: the lead screw is rotatably arranged on the mounting part, the push plate is sleeved on the lead screw and is in threaded connection with the lead screw, and the connecting part is arranged on the push plate in a penetrating way and is connected with the push plate; wherein, the lead screw rotates and to make the push pedal drive connecting portion and remove.

Further, the connecting part is in threaded connection with the sealing device, and the connecting part can rotate relative to the push plate. (ii) a Alternatively, the connection portion can attract the sealing device.

Further, the driving part further includes: and the limiting part is arranged on the connecting part, is positioned on one side of the push plate far away from the third end and is used for limiting the movement of the connecting part on the push plate.

Further, the driving part further includes: at least one guide bar is arranged on the mounting part along the direction parallel to the lead screw, and the push plate penetrates through the guide bar.

Furthermore, at least one of the screw rod and the guide rod is provided with a mark, the mark comprises a first mark and a second mark, the first mark is used for indicating the position of the push plate when the sealing device is limited at the air port end, and the second mark is used for indicating the position of the push plate when the sealing device is close to the third end so that the first end is communicated with the second end.

Furthermore, a first rolling bearing is arranged inside the push plate, and the push plate is connected with the guide rod through the first rolling bearing; further, the outside of lead screw is provided with second antifriction bearing, and lead screw and installation department pass through second antifriction bearing and connect.

Further, the assembly fixture further comprises: and the connecting pipe is used for communicating the second end with the first pump of the vacuumizing device, and a transition pipeline used for communicating the second pump of the vacuumizing device is arranged on the connecting pipe.

The utility model provides an assembly tool of a sealing device, which comprises a connecting seat and a pushing mechanism, wherein the connecting seat comprises a first end and a second end which are communicated. Wherein, first end is connected with vacuum cavity's gas port end to make connecting seat and vacuum cavity intercommunication, the second end is used for connecting evacuating device, advancing mechanism sets up on the connecting seat, sealing device detachably sets up on connecting portion. When the execution part of the propelling mechanism acts to enable the connecting part to drive the sealing device to move away from the first end and enable the first end to be communicated with the second end, the vacuumizing device works to suck air in a vacuum cavity connected with the first end; after the vacuum of the vacuum cavity body reaches the default, execution portion action makes connecting portion drive sealing device to the direction removal that is close to first end, and when sealing device and gas port end butt and spacing behind the gas port end, sealing device and connecting portion separation, execution portion action can make drive connecting portion reset, and then assembles sealing device to the gas port end of the vacuum cavity body.

That is to say, the assembly tool provided by the utility model can install the sealing device at the air port end without removing the connecting pipeline between the vacuumizing device and the air port end after the vacuumizing device completes vacuumizing on the vacuum cavity by matching the connecting seat with the propelling mechanism, so that the vacuum state of the vacuum cavity can be kept from being damaged, and meanwhile, the sealing device can be reliably and firmly connected with the air port end, so that the sealing property of the vacuum cavity is ensured. The assembly tool provided by the utility model has the advantages of simple structure, simplicity in operation and high assembly efficiency, greatly improves the vacuum degree and the sealing property of the vacuum cavity, and is suitable for popularization and application.

The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to refer to like parts throughout the drawings. Wherein:

FIG. 1 is a schematic structural diagram illustrating the assembly of an assembly fixture provided by an alternative embodiment of the utility model with a gas port end of a vacuum chamber;

FIG. 2 shows a schematic diagram of the structure from one perspective of the embodiment of FIG. 1;

FIG. 3 is a schematic diagram illustrating another perspective of the embodiment of FIG. 1;

FIG. 4 shows a cross-sectional view in the direction A-A of the embodiment of FIG. 3;

FIG. 5 is a schematic diagram illustrating an assembly fixture according to an alternative embodiment of the present invention;

fig. 6 is a schematic structural diagram of a connection seat provided in an alternative embodiment of the present invention;

FIG. 7 is a schematic diagram of a connecting portion according to an alternative embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a lead screw provided in an alternative embodiment of the present invention;

FIG. 9 shows a schematic view of the construction of a push plate provided by an alternative embodiment of the present invention;

fig. 10 is a schematic structural diagram of a connecting pipe according to an alternative embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 10 is:

100 assembly tooling, 110 connecting base, 111 first end, 112 second end, 113 third end, 114 first pipe body, 115 second pipe body, 120 pushing mechanism, 121 connecting part, 1211 rod part, 1222 operating part, 1223 thread structure, 122 mounting part, 123 lead screw, 1231 lead screw, 1232 connecting disc, 1233 handle, 124 push plate, 1241 first mounting hole, 1242 second mounting hole, 1243 third mounting hole, 1244 fourth mounting hole, 125 limiting part, 126 guide rod, 127 second rolling bearing, 128 executing part, 129 driving part, 130 connecting pipe, 131 first straight pipe, 132 bent pipe, 133 second straight pipe, 134 transition pipeline, 140 connecting part, 150 first mark, 160 second mark, 200 sealing device, 210 first sealing part, 220 second sealing part and 300 gas port end.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

An assembly tool 100 for a sealing device 200 according to some embodiments of the present invention will be described with reference to fig. 1 to 10. Specifically, as shown in fig. 1, the assembly fixture 100 of the sealing device 200 is used in cooperation with a vacuum cavity, where the vacuum cavity may be a superconducting magnet of a magnetic resonance imaging apparatus, or another structure meeting requirements, the vacuum cavity includes an air port 300, the air port 300 is used to be connected with a vacuum pumping device, so that the vacuum pumping device works to suck air in the vacuum cavity away to maintain vacuum, and meanwhile, the sealing device 200 is installed at the air port 300 to ensure the sealing performance of the vacuum cavity. The assembly fixture 100 provided by the embodiment of the utility model is used for installing the sealing device 200 at the air port 300 of the vacuum cavity, ensuring that the vacuum state of the vacuum cavity is not damaged and having a better vacuum effect.

In some possible embodiments of the present invention, as shown in fig. 1, 2, 3 and 4, the assembly tool 100 includes a connecting seat 110 and a pushing mechanism 120, where the connecting seat 110 includes a first end 111 and a second end 112 that are communicated with each other. The first end 111 is used for connecting the gas port 300 of the vacuum chamber, so that the connecting seat 110 is communicated with the vacuum chamber, the second end 112 is used for connecting the vacuum extractor, the pushing mechanism 120 is disposed on the connecting seat, specifically, the pushing mechanism is connected with the connecting seat 110 in a sealing manner, the pushing mechanism 120 includes a connecting portion 121 and an executing portion 128, an end portion of the connecting portion 121 close to the first end 111 can be detachably connected with the sealing device 200, that is, the sealing device 200 can be located in the connecting seat 110 and detachably connected with an end portion of the connecting portion 121.

The actuating portion 128 can drive the connecting portion 121 to move toward the direction close to the air port 300 through the first end 111, and further can drive the sealing device 200 to move toward the direction close to the air port 300 through the first end 111, and the sealing device 200 is limited in the air port 300, because the connecting portion 121 is detachably connected to the sealing device, and after the sealing device 200 is limited at the air port 300, the connecting portion 121 can be separated from the sealing device 200. In other words, when the actuator 128 of the pushing mechanism 120 operates to make the connecting portion 121 move the sealing device 200 away from the first end 111 and make the first end 111 and the second end 112 communicate with each other, the vacuum extractor connected to the second end 112 operates to suck air from the vacuum chamber connected to the first end 111, so that the air in the vacuum chamber gradually decreases to reach a vacuum state. After the vacuum degree of the vacuum cavity body reaches the preset value, the action of the executing part 128 enables the connecting part 121 to drive the sealing device 200 to move towards the direction close to the first end 111, when the sealing device 200 abuts against the air port end 300 and is limited behind the air port end 300, the sealing device 200 is separated from the connecting part 121, the action of the executing part 128 enables the connecting part 121 to reset, and then the sealing device 200 is assembled to the air port end 300 of the vacuum cavity body.

That is to say, according to the assembly fixture 100 provided by the utility model, the connecting seat 110 is matched with the pushing mechanism 120, after the vacuum pumping device performs vacuum pumping on the vacuum cavity, the sealing device 200 can be installed at the air port 300 without removing a connecting pipeline between the vacuum pumping device and the air port 300, so that the vacuum state of the vacuum cavity can be kept from being damaged, and meanwhile, the sealing device 200 can be reliably and firmly connected with the air port 300, so that the sealing performance of the vacuum cavity is ensured. The assembly tool 100 provided by the utility model has the advantages of simple structure, simplicity in operation and high assembly efficiency, greatly improves the vacuum degree and the sealing property of the vacuum cavity, and is suitable for popularization and application.

Specifically, the gas inlet 300 of the vacuum chamber is provided with a first flange, and the first end 111 of the connecting socket 110 is connected with the first flange to communicate the vacuum chamber and the connecting socket 110. Specifically, a sealing ring is disposed between the first end 111 of the connecting base 110 and the first flange, and the first end 111 is connected to the first flange through the connecting member 140, so as to ensure the sealing performance and reliability of the connection between the first end 111 and the gas port 300. Wherein, the connecting piece 140 can be hook bolt or other connection structures meeting the requirements, and the hook bolt can be distributed on the peripheral side of the first flange to improve the sealing performance and reliability of the connection between the first end 111 and the first flange, and further improve the sealing performance and reliability of the connection between the connecting seat 110 and the air port 300 of the vacuum chamber.

The sealing device 200 is limited at the air inlet 300, and may be the sealing device 200 is clamped with the air inlet 300, or the sealing device 200 includes an elastic member compressed at the air inlet 300, so that the connection portion 121 may be separated from the sealing device 200 by the action of the execution portion 128 of the pushing mechanism 120, and the sealing device 200 can be continuously limited at the air inlet 300 and cannot be taken out by the connection portion 121, so as to realize that the sealing device 200 is assembled to the air inlet 300.

Specifically, as shown in fig. 4, the sealing device 200 may include a first sealing element 210 and a second sealing element 220, the first sealing element 210 is an elastic element and is disposed around the second sealing element 220, for example, the first sealing element 210 is a sealing ring, the second sealing element 220 is a sealing plug, and the sealing plug is detachably connected to the end of the connecting portion 121. After the actuating part 128 of the pushing mechanism 120 acts to make the connecting part 121 drive the second sealing element 220 to move to the direction close to the first end 111 until the second sealing element is abutted to the first flange of the air port 300, the actuating part 128 acts to make the connecting part 121 continue to move in the same direction, so that the second sealing element 220 can be pushed into the first flange and the first sealing element 210 is compressed between the first flange and the second sealing element 220, that is, the sealing device 200 is limited at the air port 300. Then, the executing part 128 acts to separate the connecting part 121 from the sealing device 200, for example, the connecting part 121 is separated from the sealing plug, and the sealing device 200 is continuously limited at the air port 300, so as to assemble the sealing device 200 and the air port 300.

It is understood that, before connecting the first end 111 of the connecting socket 110 with the gas inlet 300 of the vacuum chamber, the actuator 128 may be operated to move the connecting part 121 in a direction close to the first end 111 and to protrude the end of the connecting part 121 close to the first end 111 from the first end 111 of the connecting socket 110 to the outside of the connecting socket 110, then the sealing device 200 may be mounted on the end of the connecting part 121, then the actuator 128 may be operated to move the connecting part 121 in a direction away from the first end 111 to move the sealing device 200 to the inside of the connecting socket 110, then the first end 111 of the connecting socket 110 may be connected with the gas inlet 300 of the vacuum chamber, and the assembly of the sealing device 200 may be performed.

After the assembly of the sealing device 200 and the gas port 300 is completed by using the assembly fixture 100, the connecting member 140 may be detached from the first end 111 and the gas port 300, and the sealing device 200 and the gas port 300 are welded and sealed, so as to further ensure the sealing performance and reliability of the connection between the vacuum chamber and the sealing device 200. Specifically, the sealing disk of sealing device 200 may be welded to the first flange of gas port 300. The disassembled assembly tool 100 can assemble the sealing device 200 to other vacuum chambers.

In the above embodiment, as shown in fig. 1 and 6, the connecting base 110 includes a first pipe 114 and a second pipe 115, one end of the second pipe 115 is connected to a side wall of the first pipe 114 and communicates the first pipe 114 with the second pipe 115, wherein the first end 111 is one of two ends of the first pipe 114, the second end 112 is the other end of the second pipe 115, and the other end of the first pipe 114 is a third end 113, that is, the first end 111 and the third end 113 are disposed at two ends of the first pipe 114 along an extending direction of the first pipe 114, and the second end 112 is connected to the side wall of the first pipe 114 through the second pipe 115, that is, the second end 112 is located between the first end 111 and the third end 113. The actuating portion 128 is disposed at the third end 113, and the actuating portion 128 drives the connecting portion 121 to drive the sealing device 200 to move in the first tube 114 along the extending direction of the first tube 114, that is, the actuating portion 128 drives the connecting portion 121 to drive the sealing device 200 to move back and forth along the direction from the first end 111 to the third end 113. With the arrangement, the actuating part 128 can drive the connecting part 121 to move to different positions along the extending direction of the first tube 114, so that the operation requirement for vacuumizing the vacuum cavity can be met, or the sealing device 200 is assembled to the air port 300, and the vacuum tube sealing device is simple in structure and convenient to operate.

In the above-described embodiment, as shown in fig. 1, 4, 5, and 6, the propulsion mechanism 120 further includes the mounting portion 122 and the driving portion 129. Wherein, installation department 122 and third end 113 sealing connection, establish at third end 113 and pass through bolted connection if installation department 122 lid, can understand, can set up the leakproofness that the sealing member is connected in order to improve installation department 122 and third end 113 between installation department 122 and third end 113, through installation department 122 and third end 113 sealing connection, can avoid gaseous gap entering connecting seat 110 that is connected through third end 113 and installation department 122 to influence vacuum chamber's vacuum effect, and simultaneously, be favorable to improving the efficiency that the evacuating device who is connected with second end 112 carries out the evacuation operation to vacuum chamber.

The driving portion 129 is disposed on one side of the mounting portion 122 away from the third end 113, that is, the driving portion 129 is disposed outside the connecting base 110, the connecting portion 121 is disposed through the mounting portion 122 and rotatably connected to the driving portion 129, so that the driving portion 129 works, and the connecting portion 121 can pass through the mounting portion 122 and reciprocate along the extending direction of the first tube 114, so as to meet the operation requirement of vacuum pumping on the vacuum chamber, or the sealing device 200 is assembled to the air port 300. Because the driving part 129 is arranged outside the connecting seat 110, the operation of an operator is facilitated, the connection tightness between the connecting seat 110 and the air port 300 is not affected, the assembly connection between the sealing device 200 and the air port 300 can be realized under the condition that the vacuum state of the vacuum cavity is not damaged, and the vacuum sealing device is suitable for popularization and application.

Because the connecting portion 121 and the sealing device 200 are detachably connected, for example, screwed, when the sealing device 200 is limited at the air port 300, the connecting portion 121 is rotated to separate the connecting portion 121 from the sealing device 200, and then the driving portion 129 drives the connecting portion 121 to reset, i.e., the connecting portion 121 can be separated from the sealing device 200, and the sealing device 200 can be continuously limited at the air port 300 and cannot be taken out by the connecting portion 121, so that the sealing device 200 can be assembled to the air port 300.

Further, the driving portion 129 includes a screw 123 and a push plate 124, wherein the screw 123 is rotatably disposed on the mounting portion 122 and located on a side of the mounting portion 122 away from the third end 113, that is, the screw 123 is rotatable relative to the mounting portion 122, the push plate 124 is sleeved on the screw 123 and is in threaded connection with the screw 123, the connecting portion 121 is disposed through the push plate 124 and the mounting portion 122, wherein the connecting portion 121 is connected with the push plate 124, and the connecting portion 121 is slidable relative to the mounting portion 122. The push plate 124 can drive the connecting portion 121 to be close to the first end 111 or to be away from the first end 111 by rotating the lead screw 123, so that the sealing device 200 connected with the connecting portion 121 can move towards the first end 111 or move towards the first end 111, when the vacuum pumping device is required to be used for performing vacuum pumping operation on the vacuum cavity, the lead screw 123 is rotated along the first direction, so that the push plate 124 drives the connecting portion 121, the sealing device 200 moves towards the direction away from the first end 111 to enable the second end 112 and the first end 111 of the connecting seat 110 to be communicated, and the vacuum pumping device can perform vacuum pumping operation on the vacuum cavity. After the vacuum degree in the vacuum cavity reaches the preset value, the screw 123 is rotated along the second direction, so that the push plate 124 drives the connecting portion 121 and the sealing device 200 to move towards the direction close to the first end 111, and further the sealing device 200 can abut against the air port 300 of the vacuum cavity and is limited at the air port end 300, and then the connecting portion 121 and the sealing device 200 are separated to realize the sealing connection of the sealing device 200 and the air port end 300. The second direction is opposite to the first direction, that is, one of the second direction and the first direction is clockwise, and the other is counterclockwise.

That is to say, the assembly fixture of the present invention utilizes the screw 123, the connecting portion 121 and the push plate 124 to cooperate with each other, so that the sealing device 200 can move in the connecting seat 110 toward or away from the first end 111, and the assembly fixture has a simple structure, is convenient to operate, and is suitable for popularization and application.

Further, as shown in fig. 8, a second rolling bearing 127 is sleeved outside the lead screw 123, and if the second rolling bearing 127 is sleeved at the connection end of the lead screw 123 and the mounting portion 122, the lead screw 123 and the mounting portion 122 are connected through the second rolling bearing 127, so that the lead screw 123 does not rotate to drive the mounting portion 122 to rotate, the sealing property of the connection between the mounting portion 122 and the third end 113 of the connection base 110 is ensured, and meanwhile, the flexibility of forward rotation and reverse rotation of the lead screw 123 is ensured.

Specifically, the screw 123 includes a screw 1231, a connecting plate 1232, and a handle 1233, the connecting plate 1232 connects the screw 1231 and the handle 1233, the second rolling bearing 127 is disposed at one end of the screw 1231 away from the connecting plate 1232, the handle 1233 is disposed at one end of the connecting plate 1232 away from the screw 1231, and then by operating the handle 1233, the screw 1231 can be rotated along the first direction and the second direction through the connecting plate 1232, which is simple to operate.

It can be understood that, as shown in fig. 9, the push plate 124 is provided with a first mounting hole 1241 and a second mounting hole 1242, the connection portion 121 is disposed through the second mounting hole 1242, the lead screw 1231 of the lead screw 123 is disposed through the first mounting hole 1241, and the push plate 124 includes a nut disposed on the peripheral side of the first mounting hole 1241 and used for being in threaded connection with the lead screw 1231, so that the push plate 124 can be moved in a direction away from the first end 111 by rotating the lead screw 1231 in a first direction, and the connection portion 121 is further driven to move in a direction away from the first end 111; the screw 123 rotates along the second direction, so that the push plate 124 moves towards the direction close to the first end 111, and further the connecting portion 121 is driven to move towards the direction close to the first end 111, and the structure is simple.

Specifically, the push plate 124 may be made of a stainless steel material, which is beneficial to improving the strength and reliability of the push plate 124 and reducing the manufacturing cost. Alternatively, the push plate 124 may be an aluminum alloy member, which is beneficial to reduce the weight of the push plate 124, thereby improving the flexibility and accuracy of the operation of the push plate 124.

In the above embodiment, as shown in fig. 4 and 7, the connecting portion 121 is threadedly connected to the sealing device 200, and the connecting portion 121 can rotate relative to the push plate 124, so that after the sealing device 200 is confined in the air port 300 of the vacuum chamber, the connecting portion 121 can be rotated in a direction away from the first end 111 to separate the connecting portion 121 from the sealing device 200, and the sealing device 200 is still confined in the vacuum chamber and cannot be carried out by the connecting portion 121, which is simple in structure and convenient to operate.

Specifically, as shown in fig. 7, the connecting portion 121 includes a rod portion 1211 and an operating portion 1222, the rod portion 1211 and the operating portion 1222 may be an integrated structure or a split structure, and the rotating operating portion 1222 can rotate the rod portion 1211. The rod 1211 is disposed through the mounting portion 122 and the push plate 124, wherein a sleeve is disposed between the rod 1211 and the mounting portion 122 to ensure the sealing property between the rod 1211 and the mounting portion 122, the rod 1211 is capable of moving relative to the mounting portion 122, for example, the rod 1211 is capable of sliding back and forth relative to the mounting portion 122 under the action of the push plate 124, and the rod 1211 is capable of rotating relative to the mounting portion 122 under the action of the operation portion 1222. Wherein a bushing is provided between the stem 1211 and the push plate 124 to ensure that the stem 1211 is able to reliably rotate relative to the push plate 124, i.e., the push plate 124 is stationary during rotation of the stem 1211. The end of the stem 1211 remote from the operating portion 1212 is provided with a thread structure 1213, and the sealing device 200 is detachably connected to the stem 1211 via the thread structure 1213, and specifically, the second sealing element 220 of the sealing device 200 is connected to the stem 1211 via the thread structure 1213.

In other embodiments, the connection portion 121 can attract the sealing device 200. For example, the connection portion 121 has an electromagnetic structure, and when the connection portion 121 is energized, the sealing device 200 can be magnetically attracted by the connection portion 121, and when the connection portion 121 is not energized, no action is generated between the connection portion 121 and the sealing device 200, or the connection portion 121 includes a vacuum chuck connected to a vacuum extractor.

In some possible embodiments of the present invention, after the sealing device 200 is limited at the gas port 300 of the vacuum chamber, the connecting portion 121 can be separated from the sealing device 200 by rotating the connecting portion 121 in a direction away from the first end 111, and at this time, the positions of the connecting portion 121 and the push plate 124 are changed, that is, the connecting portion 121 moves relative to the push plate 124 in a direction away from the first end 111. Then, the assembly fixture 100 is separated from the vacuum chamber, for example, the connecting member 140 between the first end 111 of the connecting seat 110 and the air port 300 is removed, so that the assembly of the sealing device 200 of the vacuum chamber can be completed, and the assembly fixture 100 after being removed can still be used for assembling the sealing devices 200 of other vacuum chambers.

Therefore, as shown in fig. 4 and 7, a limiting member 125 is disposed on the connecting portion 121, the limiting member 125 is located on a side of the push plate 124 away from the third end 113, the movement of the connecting portion 121 with respect to the push plate 124 is limited by the stopper 125, so that the dimension of the connecting portion 121 located at the push plate 124 toward the first end 111 is within a suitable range, to ensure that the sealing device 200 coupled to the coupling portion 121 can be reliably fitted to the gas port 300 of the vacuum chamber within the moving stroke range of the push plate 124, or the end of the connection part 121 near the first end 111 can be protruded to the outside of the connection socket 110 to install the sealing device 200, that is, when the push plate 124 is positioned at the minimum distance from the mounting portion 122, there is a gap between the sealing device 200 coupled to the coupling portion 121 and the gas port 300, so that the sealing device 200 cannot be fitted to the gas port 300, or the sealing device 200 cannot be mounted at the end of the connecting portion 121 near the first end 111.

That is, the stopper 125 is configured to reasonably adjust the dimension of the connecting portion 121 toward the first end 111, so that the dimension is adapted to the moving stroke range of the push plate 124, thereby ensuring that the sealing device 200 can be conveniently mounted on the connecting portion 121 and reliably and accurately assembled to the gas port 300 of the vacuum chamber, and improving the assembly efficiency and the assembly precision.

Specifically, the limiting member 125 may be a limiting ring, and the limiting ring is sleeved on the rod 1211 of the connecting portion 121, and it is understood that the limiting member 125 may also be other structures meeting the requirement, and the utility model is not limited in detail.

In some possible embodiments provided by the present invention, as shown in fig. 1, 4 and 5, the pushing mechanism 120 further includes a guide rod 126, the guide rod 126 is parallel to the screw 1231 and is disposed on the mounting portion 122, the guide rod 126 is located on one side of the mounting portion 122 away from the third end 113, the guide rod 126 is disposed through the push plate 124, and the arrangement of the guide rod 126 is beneficial to improving the moving precision of the push plate 124, so as to improve the assembling precision of the assembling tool 100 and improve the sealing performance of the vacuum cavity.

Further, the inside of the push plate 124 is provided with a first rolling bearing, the push plate 124 is connected with the guide rod 126 through the first rolling bearing, and the arrangement of the first rolling bearing can improve the flexibility and accuracy of the push plate 124 moving along the guide rod 126.

Further, the number of the guide rods 126 is one or two, and different numbers of the guide rods 126 can meet different structural requirements of the propelling mechanism 120, so that the application range of products is expanded.

When the number of the guide rods 126 is two, the two guide rods 126 are distributed on two sides of a connecting line of the axis of the screw 123 and the axis of the connecting part 121, so that the whole push plate 124 can move in parallel along the direction perpendicular to the axis of the screw 123, the possibility that the push plate 124 tilts in the moving process is reduced, the moving stability and accuracy of the push plate 124 are further improved, and the assembling accuracy of the sealing device 200 is further improved.

It is understood that, as shown in fig. 9, the push plate 124 is provided with a third mounting hole 1243 and a fourth mounting hole 1244 for mounting the two guide bars 126.

In the above embodiment, as shown in fig. 1 and 4, at least one of the screw 123 and the guide rod 126 is provided with a mark, and the mark includes a first mark 150 and a second mark 160, wherein the first mark 150 is used for indicating the position of the push plate 124 when the sealing device 200 is limited at the air port end 300, and the second mark 160 is used for indicating the position of the push plate 124 when the sealing device 200 is close to the third end 113 so that the first end 111 and the second end 112 are communicated. That is, when the push plate 124 is located at the position of the first mark 150, for example, when the surface of the push plate 124 facing the first end 111 is aligned with the first mark 150, it is described that the sealing device 200 connected to the connecting portion 121 is limited at the air port end 300, so that the connecting portion 121 and the sealing device 200 can be separated, and the push plate 124 is controlled to stop moving. When the push plate 124 is located at the position of the second mark 160, for example, when the surface of the push plate 124 facing the first end 111 is aligned with the second mark 160, it indicates that the sealing device 200 connected to the connecting portion 121 is located at a position away from the first end 111, and the first end 111 is communicated with the second end 112, for example, the sealing device 200 is located at a middle position between the first end 111 and the third end 113 of the connecting base 110, and the second end 112 is communicated with the first end 111, and the communication area is reasonable, at this time, the vacuum pumping device can be controlled to perform vacuum pumping on the vacuum chamber, and further, the push plate 124 is controlled to stop moving.

That is to say, the first mark 150 and the second mark 160 are arranged to mark the moving position of the push plate 124 relative to the first end 111, so that an operator can quickly and accurately operate the screw 123 to enable the push plate 124 to reach the position corresponding to the first mark 150 and the second mark 160 according to the prompting effect of the first mark 150 and the second mark 160, thereby facilitating subsequent operation, greatly improving the assembly efficiency and the assembly precision, and having a simple structure and being suitable for popularization and application.

The first mark 150 and the second mark 160 may be simultaneously disposed on one of the screw 123 and the guide rod 126, or the first mark 150 and the second mark 160 may be simultaneously disposed on the screw 123 and the guide rod 126, or the first mark 150 and the second mark 160 may be respectively disposed on the screw 123 and the guide rod 126, and different positions of the first mark 150 and the second mark 160 may satisfy different requirements of different installation positions and different structures of the screw 123 and the guide rod 126, thereby expanding the application range of products. It is understood that the first mark 150 and the second mark 160 may be a mark line, a groove, a coil or other structures that meet the requirements, which are provided on the lead screw 123 and the guide bar 126, and the present invention is not particularly limited.

In some possible embodiments of the present invention, as shown in fig. 5 and 10, the assembly fixture 100 further includes a connecting pipe 130, the connecting pipe 130 is connected to the second end 112 and is communicated with the connecting seat 110, and is used for communicating the second end 112 with a first pump of the vacuum pumping device, the connecting pipe 130 is further provided with a transition pipeline 134, the transition pipeline 134 is used for communicating a second pump of the vacuum pumping device, wherein the first pump may be a roots pump, and the second pump may be a molecular pump, and when the vacuum degree of the vacuum chamber reaches a critical value by the roots pump, the molecular pump is started to perform fine vacuum pumping on the vacuum chamber, so that the vacuum degree of the vacuum chamber reaches a preset value. Specifically, connecting pipe 130 includes first straight tube 131, bending tube 132, the second straight tube 133 that connects gradually, and connecting pipe 130 is the bending tube promptly, and first straight tube 131 communicates with second end 112, and transition pipeline 134 sets up on second straight tube 133, through the setting of connecting pipe 130, the evacuating device of being convenient for communicates with suitable gesture and connecting seat 110, and it is unreasonable to have solved the position of second end 112 of connecting seat 110, influences the reliability and the leakproofness that evacuating device and connecting seat 110 are connected.

Specifically, the first straight tube 131 of the connecting tube 130 is hermetically connected to the second end 112, and if a sealing member is disposed between the first straight tube 131 and the second end 112, the two can be connected and fixed by a threaded structure, a hook bolt, or other connection methods meeting requirements. The second straight pipe 133 can be arranged at a proper position through the bent pipe 132, so that the connection between the vacuum pumping device and the transition pipeline 134 on the second straight pipe 133 is facilitated, and the connection between the connecting pipe 130 and the vacuum pumping device is improved in tightness and reliability. Specifically, the vacuum device may be a roots pump assembly or other structure meeting the requirements, and the present invention is not particularly limited.

In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically defined, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the drawings, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a sealing device's assembly fixture which characterized in that includes: a connecting seat and a propelling mechanism;

the connecting seat comprises a first end and a second end which are communicated, the first end is used for connecting the air port end of the vacuum cavity, and the second end is used for connecting the vacuumizing device;

the propulsion mechanism is arranged on the connecting seat and comprises a connecting part used for being detachably connected with the sealing device and an execution part used for driving the connecting part to be close to the air port end through the first end so as to limit the sealing device at the air port end.

2. The assembly tooling of sealing device according to claim 1,

the connecting seat comprises a first pipe body and a second pipe body, one end of the second pipe body is connected with the side wall of the first pipe body and communicated with the first pipe body, the first end is one end of the two ends of the first pipe body, the second end is the other end of the second pipe body, the other end of the first pipe body is arranged to be a third end, the execution part is arranged at the third end, and the connecting part can drive the sealing device to move in the first pipe body along the extending direction of the first pipe body.

3. The assembly tooling of the sealing device according to claim 2, wherein the executing portion comprises:

installation department and drive division, the installation department with third end sealing connection, the drive division set up in the installation department is kept away from on one side of third end, connecting portion wear to locate the installation department, and with the drive division rotates to be connected.

4. The assembly tooling of the sealing device according to claim 3, wherein the driving part comprises:

the lead screw is rotatably arranged on the mounting part, the push plate is sleeved on the lead screw and is in threaded connection with the lead screw, and the connecting part is arranged on the push plate in a penetrating way and is connected with the push plate;

wherein, the lead screw rotates and can make the push pedal drive connecting portion remove.

5. The assembly tooling of sealing device according to claim 4,

the connecting part is in threaded connection with the sealing device, and the connecting part can rotate relative to the push plate; or the like, or, alternatively,

the connecting portion is capable of adsorbing the sealing device.

6. The assembly tooling of the sealing device according to claim 5, wherein the driving part further comprises:

and the limiting part is arranged on the connecting part, is positioned on one side, away from the third end, of the push plate and is used for limiting the movement of the connecting part on the push plate.

7. The assembly tooling of the sealing device according to claim 4, wherein the driving part further comprises:

at least one guide bar, along being on a parallel with the direction of lead screw set up in on the installation department, the push pedal wears to locate the guide bar.

8. The assembly tooling of sealing device according to claim 7,

at least one of the screw rod and the guide rod is provided with a mark, the mark comprises a first mark and a second mark, the first mark is used for indicating the position of the push plate when the sealing device is limited at the air port end, and the second mark is used for indicating the position of the push plate when the sealing device is close to the third end so that the first end is communicated with the second end.

9. The assembly tooling of sealing device according to claim 7,

a first rolling bearing is arranged inside the push plate, and the push plate is connected with the guide rod through the first rolling bearing; and/or the presence of a gas in the gas,

the outside of lead screw is provided with second antifriction bearing, the lead screw with the installation department passes through second antifriction bearing connects.

10. The assembly tooling of the sealing device according to any one of claims 1 to 9, further comprising:

and the connecting pipe is used for communicating the second end with the first pump of the vacuumizing device, and a transition pipeline used for communicating the second pump of the vacuumizing device is arranged on the connecting pipe.

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