CN215931180U - Gas tightness testing arrangement of executor - Google Patents

Abstract

The utility model provides an air tightness testing arrangement of executor, including installing the support body down, on install the support body, a pedestal, first centering subassembly, second centering subassembly, anchor clamps on the test, anchor clamps and last anchor clamps cylinder under the test, it sets up on last installation support body to go up the fixed setting of anchor clamps cylinder, the piston rod of anchor clamps and last anchor clamps cylinder is connected on the test, and go up anchor clamps cylinder and can drive anchor clamps lift on the test, anchor clamps setting is on the base under the test, and anchor clamps are located the test under the anchor clamps, first centering subassembly and second centering subassembly all set up on the base. The gas tightness testing device of the actuator can replace corresponding testing modules aiming at actuators with different wire slot types through the detachable testing module, reduces the volume of the testing device, and simultaneously adopts a mode of firstly centering and then testing in the testing process through the centering auxiliary device, thereby ensuring the consistency of testing positions of products and greatly improving the one-time testing qualification rate of the products.

Description

Gas tightness testing arrangement of executor

Technical Field

The utility model belongs to the technical field of actuator detection, and particularly relates to an air tightness testing device of an actuator.

Background

In order to achieve a good sealing or waterproof effect, the waterproof and air-tightness requirements of electronic products are generally high, so that when the electronic products leave a factory, the air tightness of the electronic products needs to be tested by 100% to ensure that the products are qualified.

Currently, an actuator of an EPB electronic parking brake system has waterproof and dustproof requirements because a housing thereof is used as a carrier of an electric motor and a transmission gear mechanism, and thus needs to detect the airtightness of a product.

Due to the difference of brake calipers or wiring spaces in the designed EPB electronic parking brake system, the grooving position and the orientation of a wiring groove on the actuator are large, and the mode that the plug is driven by the traditional pneumatic valve causes the overall size of the detection clamp jig to be large, the detection clamp jig is complex and the reliability is low; the current test module is basically positioned by adopting a soft rubber contour block, so that the centering property of the product can not be ensured during test, and the test efficiency and the first-time qualification rate are seriously influenced; the clamp jig is generally made of metal casting, the strength of the clamp jig is higher than that of a plastic shell of the EPB actuator, the clamp jig is difficult to collide with the plastic shell in the test process to cause appearance damage, unnecessary scrapping is caused, and the production cost is increased.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims to provide an air tightness testing device of an actuator, which solves the problems of large overall volume, low reliability and low testing efficiency and one-time passing rate caused by poor centering property of the testing device due to the diversification of actuator wire grooves in the conventional testing device, and also solves the problem that a shell of a product is damaged in the testing process.

The technical scheme is as follows: the utility model provides an air tightness testing device of an actuator, which comprises a lower mounting frame body, an upper mounting frame body, a base, a first centering assembly, a second centering assembly, a testing upper clamp, a testing lower clamp and an upper clamp cylinder, the lower mounting frame body is fixedly arranged on the base, the upper mounting frame body is fixedly arranged on the upper end surface of the lower mounting frame body, the upper clamp cylinder is fixedly arranged on the upper mounting frame body, the testing upper clamp is connected with a piston rod of the upper clamp cylinder, and the upper clamp cylinder can drive the upper test clamp to lift, the lower test clamp is arranged on the base, and the lower test fixture is positioned right below the upper test fixture, the first centering assembly and the second centering assembly are both arranged on the base, and the first centering assembly and the second centering assembly are symmetrically arranged and are respectively positioned at two sides of the lower test fixture. The air tightness testing device of the actuator can be suitable for air tightness detection of actuators with different specifications and models through the detachable and replaceable upper testing clamp and lower testing clamp, and the actuator can be accurately positioned at a position to be tested through the additionally arranged first centering assembly and the second centering assembly.

Furthermore, the gas tightness testing device of the actuator is characterized in that the test upper clamp comprises an upper clamp body, an upper clamp testing module, an upper clamp testing rubber sleeve, an inflation inlet and a first inflation pipeline, the upper clamp testing module is connected with the upper clamp body through a screw, the upper clamp testing rubber sleeve is arranged on the upper clamp testing module, and the inflation inlet and the first inflation pipeline are both arranged on the upper clamp body and are communicated with each other.

Further, in the air tightness testing device of the actuator, the inflation inlet is communicated with the sealing cavity formed by the upper clamp body, the upper clamp testing module and the upper clamp testing rubber sleeve.

Further, according to the air tightness testing device of the actuator, the lower test fixture comprises a lower fixture body, a lower fixture test rubber sleeve, a lower fixture test module, a product test base and a second air inflation pipeline, the lower fixture body is fixedly arranged on the base, the lower fixture test module is arranged on the lower fixture body, the lower fixture test rubber sleeve and the product test base are both arranged on the lower fixture test module, and the second air inflation pipeline is arranged on the lower fixture body.

Further, in the air tightness testing device of the actuator, the second air inflation pipeline is communicated with a sealing cavity formed by the lower clamp testing rubber sleeve, the lower clamp testing module and the lower clamp body.

Further, according to the air tightness testing device of the actuator, the lower clamp testing module is provided with an air tightness testing interface, and the air tightness testing interface is communicated with the position of the port to be tested of the actuator.

Furthermore, in the air tightness testing device of the actuator, the first centering assembly and the second centering assembly have the same limit structure, the first centering assembly and the second centering assembly respectively comprise a fixed support claw, a push rod, a centering cylinder, a movable support claw, a first roller and a second roller, the centering cylinder is connected with the fixed support claw through the push rod, one end of the movable support claw is movably connected with the end part, close to the push rod, of the fixed support claw, the movable support claw and the fixed support claw are symmetrically arranged, the first roller is arranged on the end part, far away from the push rod, of the fixed support claw through a rotating shaft, the second roller is arranged on the end part, far away from the push rod, of the movable support claw through a rotating shaft, the first roller and the second roller are symmetrically arranged, and the first roller and the second roller can be in contact with the actuator.

Further, in the air tightness testing device of the actuator, the movable supporting claw and the fixed supporting claw form a structure with a U-shaped section.

The technical scheme shows that the utility model has the following beneficial effects: the gas tightness testing device of the actuator can replace corresponding testing modules aiming at actuators with different wire slot types through the detachable testing module, reduces the volume of the testing device, and simultaneously adopts a mode of firstly centering and then testing in the testing process through the centering auxiliary device, thereby ensuring the consistency of testing positions of products and greatly improving the one-time testing qualification rate of the products. In addition, a pneumatic clamping mode is adopted in the test fixture, so that the damage to the shell of the product is avoided, the rejection rate of the product is reduced, and the cost is saved.

Drawings

FIG. 1 is a schematic structural diagram of a device for testing the air tightness of an actuator according to the present invention;

FIG. 2 is a first schematic view of a partial structure of a gas tightness testing device of the actuator according to the present invention;

FIG. 3 is a schematic view of a second partial structure of the airtightness testing apparatus according to the actuator of the present invention;

FIG. 4 is a schematic structural view of the test upper fixture of the present invention;

FIG. 5 is a schematic structural view of a test lower fixture according to the present invention;

fig. 6 is a schematic structural diagram of the first centering element or the second centering element according to the present invention.

In the figure: the device comprises a lower installation frame body 1, an upper installation frame body 2, a base 3, a first centering assembly 4, a fixed supporting claw 41, a push rod 42, a centering cylinder 43, a movable supporting claw 44, a first roller 45, a second roller 46, a second centering assembly 5, a test upper clamp 6, an upper clamp body 61, an upper clamp test module 62, an upper clamp test rubber sleeve 63, an air inflation inlet 64, a first air inflation pipeline 65, a test lower clamp 7, a lower clamp body 71, a lower clamp test rubber sleeve 72, a lower clamp test module 73, a product test base 74, a second air inflation pipeline 75 and an upper clamp cylinder 8.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

The air tightness testing device of the actuator shown in fig. 1-3 comprises a lower mounting frame body 1, an upper mounting frame body 2, a base 3, a first centering assembly 4, a second centering assembly 5, a testing upper clamp 6, a testing lower clamp 7 and an upper clamp cylinder 8, wherein the lower mounting frame body 1 is fixedly arranged on the base 3, the upper mounting frame body 2 is fixedly arranged on the upper end surface of the lower mounting frame body 1, the upper clamp cylinder 8 is fixedly arranged on the upper mounting frame body 2, the testing upper clamp 6 is connected with a piston rod of the upper clamp cylinder 8, the upper clamp cylinder 8 can drive the testing upper clamp 6 to ascend and descend, the testing lower clamp 7 is arranged on the base 3, the testing lower clamp 7 is positioned right below the testing upper clamp 6, the first centering assembly 4 and the second centering assembly 5 are both arranged on the base 3, and the first centering assembly 4 and the second centering assembly 5 are symmetrically arranged, the first centering assembly 4 and the second centering assembly 5 are respectively positioned at two sides of the lower test fixture 7.

The test upper clamp 6 shown in fig. 4 comprises an upper clamp body 61, an upper clamp test module 62, an upper clamp test rubber sleeve 63, an air inflation port 64 and a first air inflation pipeline 65, wherein the upper clamp test module 62 is connected with the upper clamp body 61 through a screw, the upper clamp test rubber sleeve 63 is arranged on the upper clamp test module 62, the air inflation port 64 and the first air inflation pipeline 65 are both arranged on the upper clamp body 61, and the air inflation port 64 is communicated with the first air inflation pipeline 65. The inflation inlet 64 is communicated with a sealed cavity formed by the upper clamp body 61, the upper clamp testing module 62 and the upper clamp testing rubber sleeve 63.

The test upper clamp 6 is composed of an upper clamp body 61, an upper clamp testing module 62, an upper clamp testing rubber sleeve 63, an inflation inlet 64 and a first inflation pipeline 65, the upper clamp testing module 62 is a product top profiling module, the corresponding upper clamp testing module 62 is replaced by different products, the upper clamp testing module is fastened to the upper clamp body 61 through screws, the upper clamp testing rubber sleeve 63 is arranged between the upper clamp body 61 and the upper clamp testing module 62, the upper clamp rubber sleeve 63 and the upper clamp body 61, the upper clamp testing module 62 respectively forms part of closed spaces, and the inflation inlet 64 and the first inflation pipeline 65 are both arranged on the upper clamp body 61.

As shown in fig. 5, the lower test fixture 7 includes a lower fixture body 71, a lower fixture test rubber sleeve 72, a lower fixture test module 73, a product test base 74 and a second air inflation pipeline 75, wherein the lower fixture body 71 is fixedly disposed on the base 3, the lower fixture test module 73 is disposed on the lower fixture body 71, the lower fixture test rubber sleeve 72 and the product test base 74 are both disposed on the lower fixture test module 73, and the second air inflation pipeline 75 is disposed on the lower fixture body 71. The second inflation pipeline 75 is communicated with a sealed cavity formed by the lower clamp testing rubber sleeve 72, the lower clamp testing module 73 and the lower clamp body 71. And the lower clamp testing module 73 is provided with an air tightness testing interface which is communicated with the position of the port to be tested of the actuator.

The lower test fixture 7 comprises a lower fixture body 71, a lower fixture test rubber sleeve 72, a lower fixture test module 73, a product test base 74 and a second inflation pipeline 75, wherein an air tightness test interface is arranged on the lower fixture test module 73 according to the position and the direction of a product wiring test port and is fastened on the lower fixture body 71 through screws, the lower fixture test rubber sleeve 72 is arranged between the lower fixture body 71 and the lower fixture test module 73, the lower fixture test rubber sleeve 71 and the lower fixture body form a certain closed cavity, and the cavity is communicated with the second inflation pipeline 75.

As shown in fig. 6, the first centering assembly 4 and the second centering assembly 5 have the same structure, and each of the first centering assembly 4 and the second centering assembly 5 comprises a fixed support claw 41, a push rod 42, a centering cylinder 43, a movable support claw 44, a first roller 45 and a second roller 46, the centering cylinder 43 is connected with the fixed supporting claw 41 through a push rod 42, one end of the movable supporting claw 44 is movably connected with the end part of the fixed supporting claw 41 close to the push rod 42, and the movable supporting jaw 44 and the fixed supporting jaw 41 are symmetrically arranged, the first roller 45 is arranged on the end of the fixed supporting jaw 41 far away from the push rod 42 through a rotating shaft, the second roller 46 is provided on the end of the movable supporting jaw 44 away from the push rod 42 through a rotation shaft, and the first roller 45 and the second roller 46 are symmetrically arranged, and the first roller 45 and the second roller 46 can be contacted with the actuator. The movable supporting claw 44 and the fixed supporting claw 41 form a structure with a U-shaped section. Therefore, actuator products with different outer diameters can be tested by adjusting the distance between the first roller 45 on the movable supporting claw 44 of the first centering assembly 4 and the second centering assembly 5 and the second roller 46 on the fixed supporting claw 41 according to the external dimension of the tested product.

The working principle of the air tightness testing device of the actuator is as follows:

when a product to be tested is placed on a product testing base on the testing lower fixture 7, and an inductive switch (not shown in the figure) detects the product, the control panel sends a command to start the air tightness testing device, a push rod of an upper fixture cylinder 8 arranged on the upper mounting frame body 2 drives the testing upper fixture 6 to move downwards together, at the moment, the movable supporting claws 44 and the fixed supporting claws 41 of the first centering assembly 4 and the second centering assembly 5 respectively move towards the testing lower fixture 7 under the action of respective centering cylinders 43, when the centering positions of the first roller 45 and the second roller 4 arranged on the first centering assembly 4 and the second centering assembly 5 are confirmed, the movable supporting claws 44 and the fixed supporting claws 41 of the first centering assembly 4 and the second centering assembly 5 respectively reset rapidly under the action of the respective centering cylinders 43, and simultaneously the control panel sends a command to the compressed air control valve, compressed air is injected into a cavity formed by the lower clamp body 71 and the lower clamp testing rubber sleeve 72 through a second air charging pipeline to fix the position of a product, then the upper test clamp 6 and the lower test clamp 7 are combined into a test whole under the action of the upper clamp air cylinder 8, at the moment, a control panel instructs to open a compressed air control valve and supplies compressed air to the upper clamp testing rubber sleeve 63 and the upper clamp body 61 through an air charging port 64 connected with the first air charging pipeline 65, compressed air is injected into closed spaces respectively formed by the upper clamp testing module 62, the product to be tested and an air tightness testing interface (not shown in the figure) arranged on the lower clamp testing module 73 are pressed together, the air tightness testing interface is usually made of a soft rubber profiling block, and the leakage amount in the whole testing process can be almost ignored after certain pre-tightening force is applied. Finally, the control panel sends out an instruction to open a test control valve (not shown in the figure) to detect the air tightness of the product.

After the detection is finished, the control panel sends an instruction to the control valve of the upper test fixture 6, compressed air in the upper fixture test rubber sleeve 63 is rapidly exhausted, and then the upper fixture test rubber sleeve moves upwards under the action of the upper fixture air cylinder 8 to reset; meanwhile, the control panel also gives instructions to discharge compressed air in a space formed by the lower clamp body 71 and the lower clamp test rubber sleeve 72, then products can be removed through a mechanical arm or a manual mode, different areas to be packaged are placed according to detection results, and the whole detection cycle is completed.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present invention, and these modifications should also be construed as the protection scope of the present invention.

Claims (8)

1. The utility model provides an air tightness testing arrangement of executor which characterized in that: comprises a lower installation frame body (1), an upper installation frame body (2), a base (3), a first centering assembly (4), a second centering assembly (5), a test upper clamp (6), a test lower clamp (7) and an upper clamp cylinder (8), wherein the lower installation frame body (1) is fixedly arranged on the base (3), the upper installation frame body (2) is fixedly arranged on the upper end surface of the lower installation frame body (1), the upper clamp cylinder (8) is fixedly arranged on the upper installation frame body (2), the test upper clamp (6) is connected with a piston rod of the upper clamp cylinder (8), the upper clamp cylinder (8) can drive the test upper clamp (6) to lift, the test lower clamp (7) is arranged on the base (3), the test lower clamp (7) is positioned under the test upper clamp (6), the first centering assembly (4) and the second centering assembly (5) are both arranged on the base (3), and the first centering component (4) and the second centering component (5) are symmetrically arranged, and the first centering component (4) and the second centering component (5) are respectively positioned at two sides of the lower test fixture (7).

2. The airtightness testing apparatus for the actuator according to claim 1, wherein: the test upper clamp (6) comprises an upper clamp body (61), an upper clamp testing module (62), an upper clamp testing rubber sleeve (63), an air inflation inlet (64) and a first air inflation pipeline (65), the upper clamp testing module (62) is connected with the upper clamp body (61) through screws, the upper clamp testing rubber sleeve (63) is arranged on the upper clamp testing module (62), the air inflation inlet (64) and the first air inflation pipeline (65) are both arranged on the upper clamp body (61), and the air inflation inlet (64) is communicated with the first air inflation pipeline (65).

3. The airtightness testing apparatus for the actuator according to claim 2, wherein: the inflation inlet (64) is communicated with a sealing cavity formed by the upper clamp body (61), the upper clamp testing module (62) and the upper clamp testing rubber sleeve (63).

4. The airtightness testing apparatus for the actuator according to claim 1, wherein: the lower clamp (7) for testing comprises a lower clamp body (71), a lower clamp testing rubber sleeve (72), a lower clamp testing module (73), a product testing base (74) and a second air inflation pipeline (75), wherein the lower clamp body (71) is fixedly arranged on the base (3), the lower clamp testing module (73) is arranged on the lower clamp body (71), the lower clamp testing rubber sleeve (72) and the product testing base (74) are both arranged on the lower clamp testing module (73), and the second air inflation pipeline (75) is arranged on the lower clamp body (71).

5. The airtightness testing apparatus for the actuator according to claim 4, wherein: and the second air inflation pipeline (75) is communicated with a sealing cavity formed by the lower clamp testing rubber sleeve (72), the lower clamp testing module (73) and the lower clamp body (71).

6. The airtightness testing apparatus for the actuator according to claim 5, wherein: and the lower clamp testing module (73) is provided with an air tightness testing interface which is communicated with the position of the port to be tested of the actuator.

7. The airtightness testing apparatus for the actuator according to claim 1, wherein: the first centering component (4) and the second centering component (5) have the same structure, the first centering component (4) and the second centering component (5) respectively comprise a fixed supporting claw (41), a push rod (42), a centering cylinder (43), a movable supporting claw (44), a first roller (45) and a second roller (46), the centering cylinder (43) is connected with the fixed supporting claw (41) through the push rod (42), one end of the movable supporting claw (44) is movably connected with the end part, close to the push rod (42), of the fixed supporting claw (41), the movable supporting claw (44) and the fixed supporting claw (41) are symmetrically arranged, the first roller (45) is arranged on the end part, far away from the push rod (42), of the fixed supporting claw (41) through a rotating shaft, the second roller (46) is arranged on the end part, far away from the push rod (42), of the movable supporting claw (44) through a rotating shaft, and the first roller (45) and the second roller (46) are symmetrically arranged, and the first roller (45) and the second roller (46) can be in contact with the actuator.

8. The airtightness testing apparatus for the actuator according to claim 7, wherein: the movable supporting claw (44) and the fixed supporting claw (41) form a structure with a U-shaped section.

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