CN214748677U

CN214748677U - A press-type air tightness detection vacuum box

Info

Publication number: CN214748677U
Application number: CN202121214665.4U
Authority: CN
Inventors: 陈加宝
Original assignee: Suzhou Kelianying Automation System Co ltd
Current assignee: Suzhou Kelianying Automation System Co ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-11-16
Anticipated expiration: 2031-06-02

Abstract

The utility model discloses a press-type air-tightness detection vacuum box, which comprises a vacuum cover for controlling the lifting action of a pressing component, an air extraction component arranged in the vacuum cover, a rubber ring carrier matched with the vacuum cover, and a positioning and clamping component , the pressing assembly includes a pressing cylinder, a guide rod and a guide sleeve assembly and a pressing plate, the lower end of the pressing plate is fixedly connected to the vacuum cover, the vacuum cover is provided with a cavity, one side is provided with a vent, and the lower end is provided with a ring-shaped pressing block matched with a rubber ring , the pumping assembly includes a pumping cylinder and a pumping piston, the lower end of the rubber ring carrier is provided with a positioning column and a positioning block, and the upper end is provided with a positioning table of the rubber ring, the press-type air tightness detection vacuum box can pass the pressure of the vacuum The cover cooperates with the rubber ring carrier positioned on the workbench, and presses the middle convex part of the rubber ring, and the bottom of the vacuum cover is provided with air holes, and the internal negative pressure environment is formed by the middle air extraction component to form an internal negative pressure environment to detect the rubber ring Whether the circumferential edge is leaking inward, the detection efficiency is high.

Description

Push type gas tightness detects vacuum chamber

Technical Field

The utility model relates to a check out test set technical field, concretely relates to push type gas tightness detects vacuum chamber.

Background

The air tightness detection is usually carried out by adopting a negative pressure method principle, the negative pressure method is to carry out vacuum pumping under the condition that equipment is sealed, so that the internal pressure of the negative pressure method is smaller than the external atmospheric pressure, and a vacuum attenuation method (dry detection) and a vacuum side leakage method (water detection) are specifically applied; the vacuum attenuation method is that under the condition of completely sealing all contact surfaces, the product is directly or indirectly vacuumized, and the pressure value delta P3 is analyzed and read through an IK-MF series airtightness detector, so that whether the product is qualified or not is judged.

An existing rubber ring product is likely to leak due to uneven eversion radian at the edge of the circumference, and is placed in a vacuum box by a vacuum attenuation method in order to provide accurate air tightness detection for the product, and air in the box is pumped out. If the peripheral edge of the rubber ring product to be detected has an air leakage phenomenon, the pressure value delta P3 read by the IK-MF series air tightness detector is not up to standard, the product is unqualified, and because no air tightness detection equipment matched with the product is designed at present, the air tightness detection difficulty is high, the manual detection efficiency is extremely low, so that a vacuum box structure is required to be specially designed to facilitate the actual production.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose: in view of the technical requirements in the background art, a push type air tightness detection vacuum box is designed, the vacuum cover capable of being pressed downwards is matched with a rubber ring carrier positioned on a workbench, a middle bulge part of the rubber ring is pressed, an air hole is formed in the bottom of the vacuum cover, an internal negative pressure environment is formed by upwards pumping air through a middle air pumping assembly, whether the circumferential edge of the rubber ring leaks air inwards or not is detected, air inlet parameters are analyzed through a detection hole communicated with the outside of the air hole by an IK-MF series air tightness detector, whether the air tightness reaches the standard or not is judged, air tightness detection can be implemented on the rubber rings of two specifications at the same time, the detection efficiency is high, and the vacuum box is practical and convenient.

The technical scheme adopted for solving the problems is as follows:

a push type air tightness detection vacuum box comprises a vacuum cover, an air exhaust assembly, a rubber ring carrier and a positioning clamping assembly, wherein the vacuum cover controls lifting action of a pressing assembly, the air exhaust assembly is arranged in the vacuum cover, and the rubber ring carrier is matched with the vacuum cover.

The pressing assembly is fixed by a support frame and comprises a pressing cylinder, a guide rod guide sleeve assembly and a pressing plate, the lower end of the pressing plate is fixedly connected with a vacuum cover, a cavity is arranged in the vacuum cover, one side of the vacuum cover is provided with a vent, the lower end of the vacuum cover is provided with an annular pressing block matched with the rubber ring, the annular pressing block comprises an inner annular pressing block and an outer annular pressing block, the inner annular pressing block is pressed against the bulge part at the upper end of the inner rubber ring to be tightly attached, the outer annular pressing block is pressed against the bulge part at the upper end of the outer rubber ring to be tightly attached, the vacuum cover is provided with air holes over the two bulge parts, the air holes are communicated and matched with an air tightness detector to implement air tightness detection,

the air extraction component is arranged in the cavity of the vacuum cover and comprises an air extraction cylinder and an air extraction piston, the air extraction piston is tightly attached to the inner wall of the cavity of the vacuum cover and is driven by the air extraction cylinder to move up and down, the air extraction cylinder is fixed at the top of the cavity,

the rubber ring carrier is fixed on the workstation, and the lower extreme is provided with reference column and locating piece, and the upper end is provided with the location platform of rubber ring, including interior location platform and outer location platform, interior location platform is the annular, with the bellying cooperation location of inboard rubber ring, outer location platform is the annular, with the bellying cooperation location of outside rubber ring.

Furthermore, the two sides of the rubber ring carrier are also provided with lifting blocks which are matched with the positioning and clamping assembly to be positioned and clamped.

Furthermore, pushing assemblies are further arranged on two sides of the vacuum cover and comprise pushing cylinders and pushing blocks, the pushing blocks are opposite to the edges of the rubber ring carriers and used for pushing the rubber ring carriers and the vacuum cover which are tightly attached together to separate the rubber ring carriers and the vacuum cover under the negative pressure condition.

Furthermore, location centre gripping subassembly sets up in vacuum cover one side, including lift slip table, guide arm guide pin bushing subassembly, elevating platform and fix the centre gripping cylinder at the elevating platform lower extreme, arc centre gripping arm has been linked firmly on two clamping jaws of centre gripping cylinder for press from both sides tight rubber ring carrier.

The utility model has the advantages that:

this push type gas tightness detects vacuum chamber can be through the vacuum cover of pushing down and the cooperation of rubber ring carrier of location on the workstation, and bellying in the middle of the pressfitting rubber ring, and the vacuum cover bottom is provided with the gas pocket, upwards bleed and form inside negative pressure environment through middle subassembly of bleeding, detect whether the rubber ring circumferential edge reason leaks gas inwards, the inspection hole analysis air inlet parameter that passes through the outside intercommunication of gas pocket is passed through to the gas tightness detector of IK-MF series, and judge whether up to standard gas tightness, can implement the gas tightness to the rubber ring of two kinds of specifications simultaneously and detect, high detection efficiency, practicality is convenient.

Drawings

FIG. 1 is a perspective view of a press type vacuum chamber for detecting air tightness according to the present embodiment;

FIG. 2 is a rear perspective view of the vacuum chamber for detecting the pressing type air-tightness in accordance with the present embodiment;

FIG. 3 is a side plan view of the rubber ring carrier of this embodiment after deployment;

FIG. 4 is a side bottom view of the rubber ring carrier of this embodiment after deployment;

FIG. 5 is an exploded view of the rubber ring carrier of the present embodiment;

FIG. 6 is a diagram illustrating a state after the vacuum cover and the rubber ring carrier are tightly attached to each other in the present embodiment;

the device comprises a guide rod 1, a lifting sliding table 2, a pressing cylinder 3, a guide sleeve 4, a pressing plate 5, a vacuum cover 6, a pushing cylinder 7, a rubber ring carrier 8, an arc-shaped clamping arm 9, a clamping cylinder 10, a lifting table 11, a lifting block 12, a rubber ring carrier 13, an upper end face of the rubber ring carrier 14, an outer rubber ring 14, an inner rubber ring 15, a pushing block 16, a positioning block 17, an outer annular pressing block 18, an inner annular pressing block 19, an outer positioning table 20, an O-shaped ring 21, an inner positioning table 22, an air hole 23, an air exhaust cylinder 24, an air exhaust piston 25 and an air vent 26.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-6, the present embodiment provides a press type vacuum box for detecting air tightness, which includes a vacuum cover 6 with a press device controlling the lifting motion, an air-extracting device disposed in the vacuum cover 6, a rubber ring carrier 8 cooperating with the vacuum cover 6, and a positioning and clamping device.

Specifically, the pressing assembly is fixed by a support frame and comprises a pressing cylinder 3, a guide sleeve 4 assembly of a guide rod 1 and a pressing plate 5, the lower end of the pressing plate 5 is fixedly connected with a vacuum cover 6, a cavity is arranged in the vacuum cover 6, a vent 26 is arranged on one side of the vacuum cover, an annular pressing block matched with a rubber ring is arranged at the lower end of the vacuum cover, the annular pressing block comprises an inner annular pressing block 19 and an outer annular pressing block 18, the inner annular pressing block 19 is tightly pressed against a bulge at the upper end of an inner rubber ring 15 and is tightly attached to the bulge, the outer annular pressing block 18 is tightly pressed against a bulge at the upper end of an outer rubber ring 14, air holes 23 are respectively formed above the two bulges of the vacuum cover 6, the air holes 23 are communicated and matched with an air tightness detector to implement air tightness detection, the air extraction assembly is arranged in the cavity of the vacuum cover 6 and comprises an air extraction cylinder 24 and an air extraction piston 25, air bleed piston 25 closely laminates with 6 cavity inner walls of vacuum hood, and is driven by air bleed cylinder 24 and moves about from top to bottom, air bleed cylinder 24 is fixed at the cavity top, rubber ring carrier 8 is fixed on the workstation, and the lower extreme is provided with reference column and locating piece 17, and the upper end is provided with the location platform of rubber ring, including interior location platform 22 and outer location platform 20, interior location platform 22 is the annular, with the bellying cooperation location of inboard rubber ring, outer location platform is annular 20, with the bellying cooperation location of outside rubber ring.

In a further embodiment, the rubber ring carrier 8 is further provided with lifting blocks 12 on two sides and is matched with the positioning and clamping assembly for positioning and clamping.

In a further embodiment, two sides of the vacuum cover 6 are further provided with pushing assemblies comprising a pushing cylinder 7 and a pushing block 16, and the pushing block 16 is opposite to the edge of the rubber ring carrier 8 and used for pushing the rubber ring carrier 8 and the vacuum cover 6 which are tightly attached together to separate under the negative pressure condition.

The further embodiment is that the location centre gripping subassembly sets up in vacuum hood 6 one side, including lift slip table 2, guide arm 1 guide pin bushing 4 subassembly, elevating platform 11 and fix at the centre gripping cylinder 10 of elevating platform 11 lower extreme, arc centre gripping arm 9 has been linked firmly on two clamping jaws of centre gripping cylinder 10 for press from both sides tight rubber ring carrier 8.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes, modifications, substitutions and alterations can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A press-type air-tightness detection vacuum box, comprising a vacuum hood for controlling the lifting action of a pressing component, an air extraction component arranged in the vacuum hood, a rubber ring carrier matched with the vacuum hood, and a positioning and clamping component. in:

The pressing assembly is fixed by a support frame, and includes a pressing cylinder, a guide rod and a guide sleeve assembly and a pressing plate. The lower end of the pressing plate is fixedly connected to a vacuum cover. The vacuum cover is provided with a cavity, one side is provided with a vent, and the lower end is provided with a cavity. A ring-shaped pressing block matched with the rubber ring is provided. The ring-shaped pressing block includes an inner ring-shaped pressing block and an outer ring-shaped pressing block. The block is pressed against the convex part of the upper end of the outer rubber ring and tightly fitted, and the vacuum cover is directly opposite to the upper part of the two convex parts with air holes, and the air holes are in communication and cooperation with the air tightness detector.

The air extraction assembly is arranged inside the cavity of the vacuum hood, and includes an air extraction cylinder and an air extraction piston. The air extraction piston is closely attached to the inner wall of the vacuum hood cavity, and is driven by the air extraction cylinder to move up and down. The cylinder is fixed on the top of the cavity,

The rubber ring carrier is fixed on the worktable, the lower end is provided with a positioning column and a positioning block, and the upper end is provided with a rubber ring positioning table, including an inner positioning table and an outer positioning table. The raised portion of the ring is matched for positioning, and the outer positioning platform is annular, and is matched with the raised portion of the outer rubber ring for positioning.

2 . The press-type air tightness detection vacuum box according to claim 1 , wherein the two sides of the rubber ring carrier are further provided with lifting blocks, which are positioned and clamped with the positioning and clamping components. 3 .

3. The press-type air-tightness detection vacuum box according to claim 1, characterized in that: both sides of the vacuum cover are also provided with a push assembly, including a push cylinder and a push block, and the push block is positive. on the rubber ring carrier edge.

4 . The press-type air tightness detection vacuum box according to claim 1 , wherein the positioning and clamping assembly is arranged on one side of the vacuum hood, and includes a lifting slide table, a guide rod and guide sleeve assembly, a lifting table and a fixed The clamping cylinder at the lower end of the lifting platform is fixedly connected with arc-shaped clamping arms on the two clamping jaws of the clamping cylinder.