CN219715058U

CN219715058U - Pressing device

Info

Publication number: CN219715058U
Application number: CN202223361213.6U
Authority: CN
Inventors: 司育峰; 杨景捷; 于佳平; 岳菊
Original assignee: Csic Xi'an Dong Yi Science Technology & Industry Group Co ltd
Current assignee: Csic Xi'an Dong Yi Science Technology & Industry Group Co ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-09-19
Anticipated expiration: 2032-12-13

Abstract

The utility model relates to the technical field of mechanical tests and discloses a pressing device which comprises a connector and a shell, wherein an upper sealing cover is arranged on the lower side of the connector, a lower sealing cover is sleeved on the lower side of the upper sealing cover, a mounting groove is formed in the lower side of the lower sealing cover, the shell is arranged in the mounting groove, the connector is in threaded sleeve joint with the middle part of the upper sealing cover, a thread groove is formed in the inner wall of the mounting groove, a check ring is sleeved on the inner thread of the thread groove, the check ring is in contact with one end of the shell, and a connecting mechanism is arranged between the upper sealing cover and the lower sealing cover. The utility model can realize safe, convenient and quick internal air pressure and external hydraulic pressure test of the shell parts.

Description

Pressing device

Technical Field

The utility model relates to the technical field of mechanical testing, in particular to a pressing device.

Background

After the shell part (see figure 1) is molded by adopting a hot pressing process by adopting plastic and aluminum alloy materials, the finished product is formed by further mechanical processing, and meanwhile, the internal air pressure of 0.1Mpa in a cavity and the external hydraulic pressure of 10Mpa of an external cambered surface are required to be tested. The existing test tool can meet the internal air pressure test, but cannot be used because the external hydraulic pressure test range is within 6 Mpa. Therefore, a pressing test tool which is convenient and quick to use and meets the pressure bearing strength needs to be designed to test the internal air pressure and the external hydraulic pressure of the shell part.

Disclosure of Invention

The present utility model is directed to a pressing device for solving the above-mentioned problems.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a device is suppressed, includes joint and casing, the downside that connects is equipped with sealed lid, the downside cover that goes up sealed lid is equipped with sealed lid down, the mounting groove has been seted up to the downside of sealed lid down, the inside of casing installation and mounting groove, the middle part screw thread that connects and last sealed lid cup joints, the screw thread groove has been seted up to the inner wall of mounting groove, the internal thread cover in screw thread groove is equipped with the retaining ring, the retaining ring is inconsistent with the one end of casing, be equipped with coupling mechanism between sealed lid and the sealed lid down.

Preferably, the connecting mechanism comprises a double-end stud and a nut, wherein two threaded holes are formed in one side, close to the lower sealing cover, of the upper sealing cover, mounting holes are formed in two ends of the lower sealing cover, the double-end stud is respectively arranged at two ends of one side of the lower sealing cover, one end of the double-end stud penetrates through the corresponding mounting holes, one end of the double-end stud is in threaded connection with the corresponding threaded hole, the nut is arranged on one side, far away from the upper sealing cover, of the lower sealing cover, the nut is in threaded sleeve connection with one end of the corresponding double-end stud, and the nut is in abutting contact with the corresponding side wall of the lower sealing cover.

Preferably, a first sealing gasket is arranged between the joint and the upper sealing cover in a propping way.

Preferably, a second sealing gasket is arranged between the upper sealing cover and the lower sealing cover.

Preferably, a third sealing gasket is arranged at the bottom of the mounting groove, and the shell is abutted against the third sealing gasket.

Preferably, the side wall of the shell is provided with a sealing groove, an O-shaped sealing ring is sleeved in the sealing groove, and the O-shaped sealing ring is in contact with the inner wall of the mounting groove.

Preferably, a flat pad is arranged between the two nuts and the corresponding lower sealing covers.

Preferably, a fourth sealing gasket is arranged between the retainer ring and the shell.

Compared with the prior art, the utility model provides a pressing device, which has the following beneficial effects:

1. the pressing device is split through a tool design and is mainly divided into an upper sealing cover and a lower sealing cover. The shell and the lower sealing cover are radially sealed and are then fastened and connected with the upper sealing cover by a double-end stud. In order to prevent the parts from being damaged by pressing in the pressing process, rubber gaskets are designed on the end surfaces and the outer cambered surfaces, which are contacted with the tool.

2. When the internal air pressure test is carried out, the shell parts are assembled according to the illustrated assembling position, 0.1Mpa pressure air is introduced from the joint, then the shell parts are placed in the water tank and completely submerged, the duration is 30Min, and whether the bubbles overflow or not is checked in the process.

3. When the pressing device is used for carrying out the outer hydraulic test of the outer cambered surface of the shell, the 6 nuts are disassembled, the lower sealing cover is taken down, then the 180-degree direction is exchanged, after the pressing device is fastened and connected again, the pressing device is connected with the manual hydraulic pump through the connector, the outer hydraulic test is carried out, the duration time is 30Min, and the leakage and the pressure relief phenomenon of the manual hydraulic pump are checked during the process. And after the pressing is finished, the relevant size of the part is retested, and whether the part is permanently deformed or not is compared and evaluated.

The device has no related part which is the same as or can be realized by adopting the prior art, and the utility model can realize safe, convenient and quick internal air pressure and external hydraulic pressure test of the shell parts.

Drawings

FIG. 1 is a diagram of a housing part;

fig. 2 is a schematic structural diagram of a pressing device according to the present utility model.

In the figure: 1 joint, 2 first sealing washer, 3 upper sealing cover, 4 second sealing washer, 5 double-end stud, 6 lower sealing cover, 7 flat pad, 8 nut, 9 retaining ring, 10 fourth sealing washer, 11O type sealing washer, 12 third sealing washer, 13 casing.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 2, a pressing device comprises a joint 1 and a shell 13, wherein an upper sealing cover 3 is arranged on the lower side of the joint 1, a lower sealing cover 6 is sleeved on the lower side of the upper sealing cover 3, a mounting groove is formed in the lower side of the lower sealing cover 6, the shell 13 is arranged in the mounting groove, the joint 1 is in threaded sleeve connection with the middle part of the upper sealing cover 3, a thread groove is formed in the inner wall of the mounting groove, a check ring 9 is sleeved on the inner thread of the thread groove, the check ring 9 is in contact with one end of the shell 13, and a connecting mechanism is arranged between the upper sealing cover 3 and the lower sealing cover 6.

The connecting mechanism comprises a double-end stud 5 and nuts 8, wherein two threaded holes are formed in one side, close to the lower sealing cover 6, of each upper sealing cover 3, mounting holes are formed in two ends of each lower sealing cover 6, each double-end stud 5 is arranged at two ends of one side of each lower sealing cover 6, one end of each double-end stud 5 penetrates through each corresponding mounting hole, one end of each double-end stud 5 is in threaded connection with the corresponding threaded hole, each nut 8 is arranged on one side, far away from the upper sealing cover 3, of each lower sealing cover 6, each nut 8 is in threaded sleeve joint with one end of each corresponding double-end stud 5, and each nut 8 is in contact with the corresponding side wall of each lower sealing cover 6.

A first sealing washer 2 is arranged between the joint 1 and the upper sealing cover 3 in a propping way.

A second sealing gasket 4 is arranged between the upper sealing cover 3 and the lower sealing cover 6.

The bottom of the mounting groove is provided with a third sealing gasket 12, and the shell 13 is abutted against the third sealing gasket 12, so that the tightness between the shell 13 and the lower sealing cover 6 is improved.

The lateral wall of casing 13 has seted up the seal groove, and the inside cover of seal groove is equipped with O type sealing washer 11, and O type sealing washer 11 is inconsistent with the inner wall of mounting groove, improves the leakproofness between casing 13 and the lower sealed lid 6.

And flat gaskets 7 are arranged between the two nuts 8 and the corresponding lower sealing covers, so that the tightness between the nuts 8 and the corresponding lower sealing covers is improved.

A fourth sealing gasket 10 is arranged between the check ring 9 and the shell 13, so that a sealing ring between the check ring 9 and the shell 13 is improved.

In the utility model, the tool using method during the internal air pressure test

The second sealing washer 4 is put on the end face of the inner hole of the upper sealing cover 3 according to the figure 2;

the 6 studs 5 are screwed into the corresponding 6 threaded holes of the upper sealing cover 3 according to the illustration of fig. 2 until the studs are screwed up;

aligning the mounting holes at 6 positions on the lower sealing cover 6 with 6 studs 5, and loading the studs into the inner holes of the upper sealing cover 3 according to the illustration of FIG. 2;

the lower sealing cover 6 is fastened by a flat pad 7 and a nut 8 according to the figure 2, and the second sealing washer 4 is pressed tightly;

placing a third sealing gasket 12 on the end face of the inner hole of the lower sealing cover 6 according to the illustration of fig. 2;

the O-shaped sealing ring 11 is arranged in a sealing groove of the shell 13, lubricating grease is smeared, and the O-shaped sealing ring is pressed into an inner hole of the lower sealing cover 6 to be clung to the third sealing washer 12 according to the figure 2;

the fourth sealing gasket 10 is placed on the outer cambered surface of the shell 13 according to the illustration of fig. 2, the retainer ring 9 is screwed into the threaded hole of the lower sealing cover 6, and the fourth sealing gasket 10 is pressed lightly;

the first sealing gasket 2 is placed on the end face of the upper sealing cover 3 as shown in the figure, the joint 1 is screwed in, and the first sealing gasket 2 is pressed.

And (3) finishing the installation work of the air pressure test tool in the shell according to the steps, and testing according to the internal air pressure test specification.

Tool using method during external hydraulic test

The lower sealing cover 6 is disassembled, the fourth sealing washer 10 and the retainer ring 9 in the cavity are taken out, and the rest parts are kept in an assembling state;

and rotating 180 degrees to enable the outer cambered surface of the shell to be opposite to the air inlet and the hydraulic inlet, and assembling according to the drawing again, and testing according to an outer hydraulic testing specification after the assembly is completed.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a device is suppressed, includes joint (1) and casing (13), its characterized in that, the downside that connects (1) is equipped with sealed lid (3), the downside cover that goes up sealed lid (3) is equipped with sealed lid (6) down, the mounting groove has been seted up to the downside of sealed lid (6) down, the inside of mounting groove is installed with last sealed lid (3) in casing (13), the middle part screw thread of connecting (1) and last sealed lid (3) cup joints, the screw thread groove has been seted up to the inner wall of mounting groove, the internal thread cover in screw thread groove is equipped with retaining ring (9), retaining ring (9) are inconsistent with the one end of casing (13), be equipped with coupling mechanism between sealed lid (3) and the sealed lid (6) down.

2. The pressing device according to claim 1, wherein the connecting mechanism comprises a stud (5) and a nut (8), two threaded holes are formed in one side, close to the lower sealing cover (6), of the upper sealing cover (3), mounting holes are formed in two ends of the lower sealing cover (6), the two studs (5) are respectively formed in two ends of one side of the lower sealing cover (6), one end of each stud (5) penetrates through the corresponding mounting hole, one end of each stud (5) is in threaded connection with the corresponding threaded hole, the two nuts (8) are arranged on one side, far away from the upper sealing cover (3), of the lower sealing cover (6), the two nuts (8) are in threaded sleeve connection with one end of the corresponding stud (5), and the two nuts (8) are in interference with the side wall of the corresponding lower sealing cover (6).

3. A pressing device according to claim 1, characterized in that a first sealing gasket (2) is arranged against the joint (1) and the upper sealing cap (3).

4. A pressing device according to claim 1, characterized in that a second sealing gasket (4) is arranged between the upper sealing cover (3) and the lower sealing cover (6).

5. A pressing device according to claim 1, characterized in that the bottom of the mounting groove is provided with a third sealing washer (12), and the housing (13) is in abutment with the third sealing washer (12).

6. The pressing device according to claim 1, wherein a sealing groove is formed in the side wall of the housing (13), an O-shaped sealing ring (11) is sleeved in the sealing groove, and the O-shaped sealing ring (11) is abutted against the inner wall of the mounting groove.

7. A pressing device according to claim 2, characterized in that a flat pad (7) is arranged between both nuts (8) and the corresponding lower sealing cap.

8. A pressing device according to claim 1, characterized in that a fourth sealing gasket (10) is arranged between the collar (9) and the housing (13).