Air tightness detection tool

Abstract

The utility model relates to the technical field of air tightness detection, in particular to an air tightness detection tool which comprises a base, an elastic installation assembly is fixedly connected to the upper end of the base, a detected shell is installed on the elastic installation assembly in a clamped mode, and sealing assemblies are installed on the top and the side face of the elastic installation assembly in a clamped mode. The sealing assembly is used for sealing the internal space of the detected shell, and an air pipe assembly used for inflating the detected shell is fixedly connected to the interior of the base; the upper end of the tested shell is extruded and sealed through the sealing assembly at the top of the elastic installation assembly, the sealing assembly on the side face of the elastic installation assembly is pressed and deformed, the lower end of the tested shell is extruded and sealed, and when the press-fitting assembly is separated from the tested shell and the elastic installation assembly is reset, the sealing assembly on the side face does not extrude the tested shell any more. While detecting the air tightness of the shell, the tool clamps the shell in a sealing manner, so that the product clamping time is not influenced, and the detection efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to airtightness detection field, concretely is airtightness detection frock. BACKGROUND

[0002] Airtightness detection is a commonly used detection item, for some shell requiring airtightness, airtightness detection is a necessary item before leaving factory, prevents shell airtightness difference influence use.

[0003] The existing airtightness detection frock such as patent application number " CN202120350229.3 " proposes a kind of airtightness detection device of speed reducer shell, including workbench, gantry, pressure cylinder, positioning connecting seat and locking device and so on, lifting cylinder is pressed on upper sealing end cover by pressure piece, positioning connecting seat top is provided with lower sealing end cover for plugging the opening of speed reducer shell bottom, locking device locks speed reducer shell with locking base.

[0004] But the prior art has defects, locking device is used to lock and fix shell, before airtightness detection of shell, locking device needs to be controlled to fix shell, after airtightness detection, locking device needs to be controlled to release shell, both fixing or releasing need time, lead to airtightness detection efficiency low, therefore, airtightness detection frock is proposed. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of airtightness detection frock to solve the problems proposed in the above background art.

[0006] The purpose of the utility model can be realized by the following technical solutions:

[0007] A kind of airtightness detection frock, including base, the base upper end is fixedly connected with elastic mounting assembly, elastic mounting assembly is clamped and is installed with the shell of being measured on it, elastic mounting assembly top and side clamping and installing have sealing assembly, sealing assembly is used to make the internal space of the shell of being measured sealed, base interior is fixedly connected with the air pipe assembly for the inside of the shell of being measured inflation, the base upper end is fixedly connected with pressure assembly, pressure assembly is located in the side of elastic mounting assembly, and pressure assembly is used to press down on the top of the shell of being measured.

[0008] Preferably, the elastic mounting assembly includes a mounting seat, the mounting seat is fixedly connected to the upper end of the base, a plurality of screws are threadedly connected to the upper end of the mounting seat, an activity plate is slidably connected to the plurality of screws, and a column is fixedly connected to the upper end of the activity plate.

[0009] Preferably, the sealing assembly includes a sealing ring and a sealing gasket, the sealing ring is sleeved between the activity plate and the mounting seat, the outer sidewall of the sealing ring is in extrusion fit with the inner sidewall of the bottom of the shell being measured, and the sealing gasket is sleeved on the sidewall of the top of the column, and the sealing gasket is in extrusion fit with the inner wall of the top of the shell being measured.

[0010] Preferably, a plurality of grooves are formed between the mounting base and the movable plate, and springs are fixed in the plurality of grooves, and the two ends of the springs are fixed to the mounting base and the movable plate respectively, and the screw penetrates the middle part of the spring, and the spring is in a compressed state.

[0011] Preferably, the air pipe assembly comprises an air inlet pipe, and the air inlet pipe is fixed to the base, and one end of the air inlet pipe penetrates the side surface of the base, and the other end of the air inlet pipe penetrates the mounting base and the movable plate.

[0012] Preferably, the pressing assembly comprises a mounting plate, and the mounting plate is in an L shape, and the mounting plate is fixed to the upper end of the base, and a cylinder is fixed to the upper end of the mounting plate, and a pressing head is fixed to the output end of the cylinder, and the pressing head is used for pressing the top of the measured shell.

[0013] The utility model discloses the beneficial effects of the following:

[0014] The utility model discloses a kind of shell air tightness detection tools, including base, mounting base, movable plate, elastic mounting assembly, sealing assembly, pressing assembly and air pipe assembly, the base is fixed to the bottom of the measured shell, the mounting base is fixed to the base, the movable plate is fixed to the mounting base, the elastic mounting assembly is fixed to the base, the sealing assembly is fixed to the elastic mounting assembly, the pressing assembly is fixed to the base, and the air pipe assembly is fixed to the base. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, other drawings can also be obtained by those skilled in the art without creative labor on the premise of not paying the creative labor.

[0016] Figure 1 It is the whole structure schematic diagram of the utility model;

[0017] Figure 2 It is the air pipe assembly sectional structure schematic diagram of the utility model;

[0018] Figure 3 It is the groove sectional structure schematic diagram of the utility model;

[0019] Figure 4 It is the elastic mounting assembly structure schematic diagram of the utility model;

[0020] The reference signs in the drawings are as follows:

[0021] 1, base; 2, mounting plate; 3, cylinder; 4, pressure head; 5, mounting seat; 6, air inlet pipe; 7, movable plate; 8, screw; 9, groove; 10, spring; 11, sealing ring; 12, column; 13, sealing gasket; 14, measured shell. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] A kind of air tightness detection tool, as shown in Figure Figures 1-4 It includes base 1, the upper end of base 1 is fixedly connected with elastic mounting assembly, measured shell 14 is clamped and installed on elastic mounting assembly, sealing assembly is clamped and installed on the top and side of elastic mounting assembly, sealing assembly is used to seal the internal space of measured shell 14, gas pipe assembly for inflating the inside of measured shell 14 is fixedly connected in base 1, pressure assembly is fixedly connected on the upper end of base 1, pressure assembly is located on the side of elastic mounting assembly, and pressure assembly is used to press down on the top of measured shell 14.

[0024] By aligning the lower end of measured shell 14 with installation assembly, pressure assembly presses down on the upper end of measured shell 14, elastic mounting assembly is pressed, the sealing assembly on the top of elastic mounting assembly extrudes and seals the upper end of measured shell 14, the sealing assembly on the side of elastic mounting assembly is pressed and extrudes and seals the lower end of measured shell 14, so that the internal space of measured shell 14 is sealed, air tightness detection is carried out by inflating the inside of measured shell 14 through gas pipe assembly, when pressure assembly is separated from measured shell 14, elastic mounting assembly resets, the sealing assembly on the side no longer extrudes and seals measured shell 14, while detecting the air tightness of shell, the shell is sealed and clamped by the tool, which does not affect the clamping time of product and increases detection efficiency.

[0025] As shown in Figure Figures 1-4 The elastic mounting assembly includes mounting seat 5, mounting seat 5 is fixedly connected on the upper end of base 1, a plurality of screws 8 are threadedly connected on the upper end of mounting seat 5, movable plate 7 is slidably connected on a plurality of screws 8, and column 12 is fixedly connected on the upper end of movable plate 7.

[0026] The bottom side wall of screw 8 is provided with a thread, the bottom thread area is threadedly connected with mounting seat 5, the side wall without thread is slidably connected with movable plate 7, and column 12 is positioned at the center of measured shell 14, which facilitates the alignment of measured shell 14.

[0027] As shown in Figure Figures 2-4As shown, the sealing assembly includes a sealing ring 11 and a sealing gasket 13, the sealing ring 11 is sleeved between the movable plate 7 and the mounting seat 5, the outer wall of the sealing ring 11 is in extrusion fit with the inner wall of the bottom of the measured shell 14, and the sealing gasket 13 is sleeved on the top side wall of the column body 12 and is in extrusion fit with the inner wall of the top of the measured shell 14.

[0028] When the pressing assembly does not press the measured shell 14, the sealing ring 11 does not overflow the side wall of the elastic mounting assembly, facilitating the installation of the measured assembly, when the pressing assembly presses the measured shell 14, the top side wall of the measured shell 14 is extruded and sealed with the sealing gasket 13, the movable plate 7 is pressed, the movable plate 7 extrudes the sealing ring 11, the sealing ring 11 deforms, the circumference of the outer ring of the sealing ring 11 becomes longer, overflows the side of the elastic mounting assembly, and extrudes and seals the inner side wall of the lower end of the measured shell 14, so that the internal space of the measured shell 14 is sealed.

[0029] As shown in the figure, Figures 2-4 A plurality of grooves 9 are formed between the mounting seat 5 and the movable plate 7, and a spring 10 is fixedly connected in each groove 9, and the two ends of the spring 10 are fixedly connected with the mounting seat 5 and the movable plate 7 respectively, and the screw 8 penetrates the middle part of the spring 10, and the spring 10 is in a compressed state.

[0030] When the pressing assembly presses the measured shell 14, the movable plate 7 is pressed, and the compression state of the spring 10 becomes more and more serious, when the pressing assembly is separated from the measured shell 14, the spring 10 returns to the initial compression state, the sealing ring 11 returns to the original state, the side wall of the lower end of the shell is separated from the extrusion, and the measured shell 14 can be directly taken down, and the spring 10 facilitates the clamping of the measured shell 14.

[0031] As shown in the figure, Figures 1-4 The air pipe assembly includes an air inlet pipe 6, the air inlet pipe 6 is fixedly connected in the base 1, one end of the air inlet pipe 6 penetrates the side of the base 1, and the other end penetrates the mounting seat 5 and the movable plate 7.

[0032] The air inlet pipe 6 is fixedly connected with the base 1 and is in sliding connection with the movable plate 7, one end of the air inlet pipe 6 enters 0.2MPa pressure air, and the air enters the shell, so as to detect the sealing performance of the shell.

[0033] As shown in the figure, Figure 1 The pressing assembly includes a mounting plate 2, the mounting plate 2 is provided in an "L" shape, the mounting plate 2 is fixedly connected to the upper end of the base 1, a cylinder 3 is fixedly connected to the upper end of the mounting plate 2, a pressure head 4 is fixedly connected to the output end of the cylinder 3, and the pressure head 4 is used for pressing the top of the measured shell 14.

[0034] The cylinder 3 (model AT91-100-2223) drives the pressure head 4 to rise and fall, the pressure head 4 presses the measured shell 14, the measured shell 14 extrudes the sealing gasket 13 to play a plane sealing, the measured shell 14 and the movable plate 7 are simultaneously moved downward under the pressure of the cylinder 3, extruding the sealing ring 11 to achieve radial sealing.

[0035] The working principle of the air tightness detection tool is as follows:

[0036] By aligning the lower end of the measured shell 14 with the installation assembly and inserting, the compression assembly presses the upper end of the measured shell 14, the elastic installation assembly is pressed, the sealing assembly at the top of the elastic installation assembly extrudes and seals the upper end of the measured shell 14, the sealing assembly at the side of the elastic installation assembly is pressed to extrude and seal the lower end of the measured shell 14, so that the internal space of the measured shell 14 is sealed, air tightness detection is carried out by pressing the internal space of the measured shell 14 through the tracheal assembly, when the compression assembly is separated from the measured shell 14, the elastic installation assembly resets, the sealing assembly at the side no longer extrudes the measured shell 14, the tool seals and clamps the shell during air tightness detection, and does not affect the product clamping time, thereby increasing the detection efficiency.

[0037] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed.

Claims

1. A leak tightness detection tool comprising a base (1), characterized in that, The bottom (1) upper end is fixedly connected with an elastic mounting assembly, the elastic mounting assembly is connected with a measured shell (14), the elastic mounting assembly top and side are connected with a sealing assembly, the sealing assembly is used for sealing the internal space of the measured shell (14), the bottom (1) is fixedly connected with a trachea assembly for inflating the measured shell (14), the bottom (1) upper end is fixedly connected with a pressure assembly, the pressure assembly is located on one side of the elastic mounting assembly, and the pressure assembly is used for pressing the top of the measured shell (14).

2. The air tightness detection tool according to claim 1, wherein, The elastic mounting assembly comprises a mounting seat (5), the mounting seat (5) is fixedly connected with the bottom (1), a plurality of screws (8) are threadedly connected with the mounting seat (5), and a movable plate (7) is slidably connected with the plurality of screws (8).

3. The air tightness detection tool according to claim 2, wherein, The sealing assembly comprises a sealing ring (11) and a sealing gasket (13), the sealing ring (11) is sleeved between the movable plate (7) and the mounting seat (5), the outer side wall of the sealing ring (11) is in extrusion fit with the bottom inner side wall of the measured shell (14), and the sealing gasket (13) is sleeved on the top side wall of the column body (12).

4. The air tightness detection tool according to claim 3, wherein, A plurality of grooves (9) are formed between the mounting seat (5) and the movable plate (7), a spring (10) is fixedly connected in each groove (9), the spring (10) is fixedly connected with the mounting seat (5) and the movable plate (7) at both ends, the screw (8) penetrates the middle part of the spring (10), and the spring (10) is in a compressed state.

5. The hermeticity inspection tool of claim 1, wherein, The trachea assembly comprises an air inlet pipe (6), the air inlet pipe (6) is fixedly connected in the bottom (1), one end of the air inlet pipe (6) penetrates the side of the bottom (1), and the other end penetrates the mounting seat (5) and the movable plate (7).

6. The hermeticity inspection tool of claim 1, wherein, The pressure assembly comprises a mounting plate (2), the mounting plate (2) is provided in an "L" shape, the mounting plate (2) is fixedly connected with the bottom (1), a pneumatic cylinder (3) is fixedly connected with the upper end of the mounting plate (2), a pressure head (4) is fixedly connected with the output end of the pneumatic cylinder (3), and the pressure head (4) is used for pressing the top of the measured shell (14).

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