CN220542356U

CN220542356U - Helium detection apparatus

Info

Publication number: CN220542356U
Application number: CN202322174449.7U
Authority: CN
Inventors: 黄尧钦; 刘兆伟; 王洪斌
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2023-08-11
Filing date: 2023-08-11
Publication date: 2024-02-27
Anticipated expiration: 2033-08-11

Abstract

The embodiment of the application provides helium detection equipment. The helium detection equipment comprises an upper clamp and a lower clamp, wherein the upper clamp is provided with a first mounting groove, and a first sealing space can be formed between the first mounting groove and a workpiece to be detected; the lower clamp comprises a supporting plate, wherein the supporting plate is provided with a second mounting groove, and a second sealing space can be formed between the second mounting groove and a workpiece to be detected; the upper clamp, the lower clamp and the workpiece to be detected form a sealing space, so that the workpiece to be detected can be effectively prevented from being crushed by the helium detection equipment during detection, and the workpiece to be detected is prevented from being scrapped due to poor appearance.

Description

Helium detection apparatus

Technical Field

The utility model relates to the field of quality inspection, in particular to helium inspection equipment.

Background

The helium detection equipment in the prior art mainly comprises a supporting platform, a displacement assembly, a helium detection upper/lower cavity assembly, a system detection valve assembly and the like, wherein each set of cavity corresponds to a workpiece to be detected, an airtight cavity is formed by utilizing the upper cavity and the lower cavity, a vacuum pump is used for pumping vacuum to pipelines of each cavity, and when each cavity reaches a certain vacuum degree, a series of helium circulation airtight detection works are carried out.

However, the helium detecting device in the prior art has few types of workpieces which can be detected, and for some light and thin workpieces, the surface of the workpiece is easy to be crushed or deformed during detection, so that the workpiece is scrapped due to poor appearance.

Therefore, a new technical solution is needed to solve the above technical problems.

Disclosure of Invention

An object of the present utility model is to provide a new solution for helium test equipment.

According to a first aspect of the present utility model, there is provided a helium detection apparatus, wherein the helium detection apparatus comprises:

the upper clamp is provided with a first mounting groove, and a first sealing space can be formed between the first mounting groove and a workpiece to be detected;

the lower clamp comprises a supporting plate, wherein the supporting plate is provided with a second mounting groove, and a second sealing space can be formed between the second mounting groove and a workpiece to be detected.

Optionally, the upper fixture includes a seal located in the first mounting groove.

Optionally, the first mounting groove is provided with a first air hole;

the upper clamp is further provided with a detection channel, and one end of the detection channel is connected with the first air hole.

Optionally, the device further comprises a detection device for detecting the sealing performance of the workpiece to be detected, and the other end of the detection channel is connected with the detection device.

Optionally, the second mounting groove is provided with a second air hole;

the support plate comprises a gas channel, and one end of the gas channel is connected with the second air hole.

Optionally, the lower fixture further comprises an air pipe joint, and the other end of the air channel is connected with the air pipe joint.

Optionally, the second mounting groove is a dovetail groove.

Optionally, the lower fixture further comprises a supporting seat, and the supporting seat is fixedly connected with the supporting plate.

Optionally, the lower fixture further comprises a fixing plate and a lifting mechanism, wherein the lifting mechanism is used for driving the fixing plate to lift;

wherein, the supporting seat is fixedly arranged on the fixed plate.

Optionally, the lower fixture further comprises a guiding mechanism, wherein the guiding mechanism is used for enabling the fixing plate to be directly upwards or downwards.

According to the embodiment of the utility model, the workpiece to be detected is supported through the first mounting groove and the second mounting groove, the detection surface of the workpiece to be detected can be effectively protected, deformation of the detection surface of the workpiece to be detected is prevented, a sealing space can be formed between the groove-shaped mounting structure and the workpiece to be detected, and compared with a helium detection upper/lower cavity assembly in the prior art, the defect that the workpiece to be detected is crushed by helium detection equipment during detection is effectively avoided, and the workpiece to be detected is prevented from being scrapped due to poor appearance.

Other features of the present utility model and its advantages will become apparent from the following detailed description of exemplary implementations of the utility model with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.

Fig. 1 is a schematic structural view of an upper jig in one embodiment of the present utility model.

Fig. 2 is a partial structural schematic diagram of an upper jig in one embodiment of the utility model.

Fig. 3 is a cross-sectional view of an upper clamp in one embodiment of the utility model.

Fig. 4 is a schematic view of the structure of the lower jig in one embodiment of the utility model.

Fig. 5 is a front view of a support plate in one embodiment of the utility model.

Fig. 6 is a partial enlarged view at a of fig. 5.

Fig. 7 is a cross-sectional view of a support plate in one embodiment of the utility model.

Reference numerals illustrate:

1. a workpiece to be detected; 2. a clamp is arranged; 21. a first mounting groove; 22. a first air hole; 23. a detection channel; 3. a seal; 4. a guide post; 5. a support base; 51. a first mounting hole; 6. a support plate; 61. a second mounting hole; 62. a second mounting groove; 63. a second air hole; 64. a gas channel; 7. a fixing plate; 8. an air pipe joint.

Detailed Description

Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise.

The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

The following describes in detail the technical solutions disclosed in the embodiments of the present application with reference to the accompanying drawings.

According to one embodiment of the present application, a helium detection apparatus is provided. Referring to fig. 1 to 7, the helium test apparatus comprises an upper jig 2 and a lower jig, the upper jig 2 being provided with a first mounting groove 21, the first mounting groove 21 being capable of forming a first sealed space with a workpiece 1 to be tested; the lower clamp comprises a support plate 6, the support plate 6 is provided with a second mounting groove 62, and a second sealing space can be formed between the second mounting groove 62 and the workpiece 1 to be detected.

Specifically, as shown in fig. 1, the upper jig 2 includes a main body portion and a boss. The main body part is provided with a plurality of mounting holes. The boss is provided with a first mounting groove 21, and the first mounting groove 21 is provided with a plurality of. Through the setting of boss, can be convenient for go up anchor clamps 2 with lower anchor clamps cooperation is in order to realize better to wait to detect the detection of work piece 1. The first mounting groove 21 can support the outer side surface of the workpiece 1 to be detected, and a first sealing space can be formed between the first mounting groove 21 and the workpiece 1 to be detected, so that deformation of the outer side surface of the workpiece 1 to be detected due to stress is avoided.

Of course, the upper fixture 2 may be provided with only a main body portion, and the main body portion is provided with a first mounting groove 21, and the first mounting groove 21 is used for accommodating the outer side surface of the workpiece 1 to be inspected.

As shown in fig. 4, the lower jig includes a support plate 6, and the support plate 6 is capable of entering the workpiece 1 to be inspected. The support plate 6 is provided with a second mounting groove 62, after the support plate 6 enters the workpiece 1 to be detected, the second mounting groove 62 can accommodate the inner side surface of the workpiece 1 to be detected so as to support the inner side surface of the workpiece 1 to be detected, and a second sealing space can be formed between the second mounting groove 62 and the workpiece 1 to be detected so as to avoid deformation of the inner side surface of the workpiece 1 to be detected due to stress.

The helium detection equipment supports the workpiece 1 to be detected through the first mounting groove 21 and the second mounting groove 62, the detection surface of the workpiece 1 to be detected can be better protected, deformation of the detection surface of the workpiece 1 to be detected is prevented, a sealing space can be formed between the groove-shaped mounting structure and the workpiece to be detected, and compared with the helium detection upper/lower cavity assembly in the prior art, the helium detection equipment can be effectively prevented from damaging the workpiece 1 to be detected by pressing during detection, and the workpiece 1 to be detected is prevented from being scrapped due to poor appearance.

In addition, in this way, the production cost of the workpiece 1 to be detected is greatly reduced, and the detection efficiency of the helium detection equipment is improved.

In one example, the upper fixture 2 includes a seal 3, and the seal 3 is located in the first mounting groove 21.

Specifically, as shown in fig. 1 and 3, the sealing member 3 is a surface contact sealing pad, and the surface contact sealing pad can be in surface contact sealing with the whole outer side surface of the workpiece 1 to be detected, so as to avoid deformation of the workpiece 1 to be detected due to uneven stress.

More specifically, as shown in fig. 3, the surface contact sealing gasket can better form a first sealing space between the workpiece 1 to be detected and the first mounting groove 21 of the upper clamp 2, so that the compression force of the compression amount achieved by the surface contact sealing gasket during sealing can not generate visible mechanical appearance deformation on the workpiece, and the sealing pressure of the workpiece 1 to be detected and the appearance of the detection surface of the workpiece 1 to be detected are effectively ensured.

Wherein, the sealing member 3 is a non-metal sealing gasket, so as to better avoid the appearance of the detection surface of the workpiece 1 to be detected from being damaged.

In one example, the first mounting groove 21 is provided with a first air hole 22. The upper clamp 2 is further provided with a detection channel 23, and one end of the detection channel 23 is connected with the first air hole 22.

Specifically, as shown in fig. 2, the helium detection apparatus according to the embodiment of the present application is connected to the detection channel 23 through the first air hole 22, so that the detection of the sealing performance of the helium detection apparatus on the workpiece 1 to be detected by the helium detection apparatus can be better achieved, and the detection efficiency of the helium detection apparatus is improved.

In one example, the helium detecting device further comprises detecting means for detecting the sealing performance of the workpiece 1 to be detected, and the other end of the detecting channel 23 is connected with the detecting means.

Specifically, the helium detection apparatus according to the embodiment of the present application further includes a detection device, the detection device is connected with the upper fixture 2 through the mounting hole of the upper fixture 2, wherein an O-ring seal is performed between the detection device and the upper fixture 2. The other end of the detection channel 23 of the upper clamp 2 is connected with the detection device.

In this way, the helium detection of the workpiece 1 to be detected by the helium detection apparatus can be better achieved. In addition, because the surface contact sealing gasket and the O-shaped ring are combined and sealed, after the helium detection equipment forms a first sealing space, the subsequent series of detection of the helium detection equipment can be more conveniently realized, the detection accuracy of the helium detection equipment is further improved, the detection surface of the workpiece 1 to be detected before and after the detection can not generate defects such as crush injury, surface damage, appearance deformation and the like, and the appearance performance of the workpiece 1 to be detected is effectively ensured.

Of course, the detection device and the upper fixture 2 may be sealed by other sealing means, such as a sealing adhesive tape, which is not particularly limited herein, and may be selected by those skilled in the art according to actual needs.

In addition, the connection mode between the other end of the detection channel 23 and the detection device may be a threaded connection, an inserting connection, or the like, so long as the tightness of the connection can be ensured, the application is not particularly limited, and a person skilled in the art can select according to actual needs.

It should be noted that, the first sealed space is located the lateral surface of the workpiece 1 to be detected, and the first sealed space is communicated with the detection device, so that the detection device can detect the sealing performance of the first sealed space.

In one example, the second mounting groove 62 is provided with a second air hole 63. The support plate 6 includes a gas passage 64, and one end of the gas passage 64 is connected to the second gas hole 63.

Specifically, as shown in fig. 4 to 6, on the basis of ensuring the installation stability and the tightness of the support plate 6, the helium detection apparatus according to the embodiment of the present application is connected to the second sealed space through the gas channel 64 and the second gas hole 63 of the support plate 6, so that the detection gas can be more rapidly introduced into the second sealed space, and the detection efficiency of the helium detection apparatus is improved.

In one example, the lower fixture further includes an air pipe joint 8, and the other end of the air passage 64 is connected to the air pipe joint 8.

Specifically, as shown in fig. 4, the helium detection apparatus according to the embodiment of the present application can ensure the sealing performance of the second sealed space by filling the detection gas into the second sealed space through the gas pipe joint 8, so as to improve the detection accuracy of the helium detection apparatus.

It should be noted that, the second sealed space is located on the inner side surface of the workpiece 1 to be detected, so that when the helium detection apparatus detects, the second sealed space may be filled with a detection gas, and then the detection device detects whether the first sealed space contains the detection gas, so as to determine the sealing performance of the detection surface of the workpiece 1 to be detected.

In one example, the second mounting groove 62 is a dovetail groove.

Specifically, as shown in fig. 5 to 7, in the helium detection apparatus according to the embodiment of the present application, by setting the second mounting groove 62 as a dovetail groove, the sealing performance of the second sealing space can be effectively ensured, the workpiece 1 to be detected is prevented from falling off from the second mounting groove 62, and the maintenance of the second mounting groove 62 is facilitated, so that the service life of the support plate 6 is prolonged.

In one example, the lower fixture further includes a support base 5, and the support base 5 is fixedly connected to the support plate 6.

Specifically, as shown in fig. 4, the supporting seat 5 is provided with a mounting opening and a first mounting hole 51, the mounting opening penetrates through the supporting seat 5, the first mounting hole 51 is perpendicular to the mounting opening, and the first mounting hole 51 is provided with a plurality of mounting holes. The support plate 6 is provided with a second mounting hole 61, and the second mounting hole 61 is provided with a plurality of second mounting holes.

The helium testing device according to the embodiment of the present application passes through the first mounting hole 51 and the second mounting hole 61 through a long pin, so as to fixedly mount the support plate 6 on the support seat 5, so as to effectively prevent the support plate 6 from shaking and dislocating with the upper fixture 2 during testing of the helium testing device, thereby causing a sealing failure of the helium testing device.

Furthermore, the helium test apparatus according to the embodiment of the present application effectively ensures the mounting accuracy of the support plate 6 by the arrangement of the first mounting holes 51 and the second mounting holes 61.

Of course, the helium detecting device may also be fixedly mounted on the support base 5 by a connection structure such as a screw, a rivet, etc., which is not particularly limited herein, and may be selected by those skilled in the art according to actual needs.

In addition, as shown in fig. 4, after the support plate 6 is fixedly installed on the support base 5, the air pipe joint 8 may be installed at an end of the support base 5 facing away from the support plate 6, so that the helium detection apparatus may fill the second sealed space with the detection gas.

In one example, the lower fixture further includes a fixing plate 7 and a lifting mechanism for driving the fixing plate 7 to lift. Wherein, the supporting seat 5 is fixedly installed on the fixing plate 7.

Specifically, as shown in fig. 4, in the helium detection apparatus according to the embodiment of the present application, the inner side surface of the workpiece 1 to be detected is assembled in the second installation groove 62 of the support plate 6 by the clamping mechanism, and then the fixing plate 7 is driven to rise by the lifting mechanism, so that the outer side surface of the workpiece 1 to be detected is located in the first installation groove 21 of the upper fixture 2.

Wherein the fixing plate 7 can be used as a mounting reference of the support plate 6 to ensure the flatness of the mounting surface of the support plate 6.

In addition, since the fixing plate 7 can be provided with a plurality of supporting seats, the fixing plate 7 can also ensure that a plurality of workpieces 1 to be detected have the same jacking height and parallelism for the detection of a plurality of workpieces 1 to be detected, and the stability and reliability of the helium detection equipment are effectively improved.

In one example, the lower jig further includes a guide mechanism for making the fixing plate 7 straight up or straight down.

Specifically, as shown in fig. 4, the guiding mechanism includes a guide post 4, a guide sleeve, and a linear bearing. The fixing plate 7 is in sliding connection with the guide post 4. The guide sleeve is used for preventing the fixing plate from falling off the guide post 4. The linear bearing is connected with the lifting mechanism, so that the lifting mechanism can drive the fixing plate 7 to vertically upwards or downwards on the guide post 4.

The supporting seat 5 is fixedly installed on the fixing plate 7, so that the supporting seat 5 can be driven to be directly upward or downward through the lifting mechanism, the workpiece 1 to be detected is driven to be directly upward or downward, the sealing performance of the sealing surfaces of the upper clamp 2, the lower clamp and the workpiece 1 to be detected is effectively ensured, and the situation that the sealing surfaces are not parallel and cannot be sealed is avoided.

Of course, the lower fixture may further drive the fixing plate 7 to directly go up or down by setting a guide mechanism such as a screw structure, which is not specifically limited herein, and may be selected by those skilled in the art according to actual needs.

In addition, the second mounting groove 62 of the supporting plate 6 accommodates the inner side surface of the workpiece 1 to be detected, so that the workpiece 1 to be detected is convenient to feed. The feeding device for feeding the workpiece 1 to be detected may be a clamping mechanism, and the clamping mechanism may be a manipulator or a vice, so long as the inner side surface of the workpiece 1 to be detected can be assembled in the second mounting groove 62 of the support plate 6, which is not particularly limited herein, and a person skilled in the art may select according to actual needs.

In one example, the lift mechanism further includes a lift power source.

Specifically, the jacking power source is a cylinder, the cylinder provides stroke power for the elevating system, the stroke of the elevating system is greater than the stroke between the upper clamp 2 and the lower clamp in a sealing manner, so that the sealing elements of the upper clamp 2 and the lower clamp can reach the designated compression amount, and the sealing elements can play a sealing role.

The lifting power source can be a hydraulic cylinder or a motor, so long as the lifting mechanism can provide travel power, the lifting power source is not particularly limited, and a person skilled in the art can select the lifting power source according to actual needs.

In addition, the lifting mechanism does not need to be provided with a lifting power source, so that the fixing plate 7 can be driven to vertically and directly move on the guide post 4 in a manual mode.

The foregoing embodiments mainly describe differences between the embodiments, and as long as there is no contradiction between different optimization features of the embodiments, the embodiments may be combined to form a better embodiment, and in consideration of brevity of line text, no further description is given here.

While certain specific embodiments of the utility model have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims

1. A helium testing apparatus, comprising:

the device comprises an upper clamp (2), wherein the upper clamp (2) is provided with a first mounting groove (21), and a first sealing space can be formed between the first mounting groove (21) and a workpiece (1) to be detected;

the lower clamp comprises a supporting plate (6), wherein the supporting plate (6) is provided with a second mounting groove (62), and a second sealing space can be formed between the second mounting groove (62) and a workpiece (1) to be detected.

2. Helium detection apparatus according to claim 1, characterized in that the upper clamp (2) comprises a seal (3), the seal (3) being located in the first mounting groove (21).

3. Helium detection apparatus according to claim 2, characterized in that said first mounting groove (21) is provided with a first air hole (22);

the upper clamp (2) is further provided with a detection channel (23), and one end of the detection channel (23) is connected with the first air hole (22).

4. A helium detection apparatus according to claim 3, further comprising detection means for detecting the sealing properties of the workpiece (1) to be detected, the other end of the detection channel (23) being connected to the detection means.

5. Helium detection apparatus according to claim 1, characterized in that the second mounting groove (62) is provided with a second air hole (63);

the support plate (6) comprises a gas channel (64), and one end of the gas channel (64) is connected with the second air hole (63).

6. Helium detection apparatus according to claim 5, characterized in that the lower clamp further comprises a gas pipe connection (8), the other end of the gas channel (64) being connected to the gas pipe connection (8).

7. Helium test according to claim 1, wherein the second mounting groove (62) is a dovetail groove.

8. Helium detection apparatus according to claim 1, characterized in that the lower clamp further comprises a support seat (5), the support seat (5) being fixedly connected with the support plate (6).

9. Helium detection apparatus according to claim 8, characterized in that the lower clamp further comprises a fixed plate (7) and a lifting mechanism for driving the fixed plate (7) up and down;

wherein, the supporting seat (5) is fixedly arranged on the fixed plate (7).

10. Helium detection apparatus according to claim 9, characterized in that the lower clamp further comprises a guiding mechanism for the fixing plate (7) to be straight up or straight down.