Equipment for leakage detection

Abstract

The utility model relates to a leak hunting device, which comprises a lower clamp, an upper clamp and an air inlet mechanism, an object to be detected comprises a cavity to be detected, and a first opening and a second opening which are communicated with the cavity to be detected are respectively arranged at the top and the side part of the object to be detected, and the leak hunting device is characterized in that a sealing seat corresponding to the cavity to be detected is arranged on the upper surface of the lower clamp; the upper clamp is provided with a blocking piece capable of blocking the first opening, and a blocking mechanism used for blocking the second opening is additionally arranged on the periphery of the blocking piece through a first connecting piece and is in a suspended state relative to the lower clamp. The support, namely the first connecting piece, originally occupying the mounting space is transferred to the upper clamp, so that only the plugging mechanism is arranged in the mounting space, the space between the upper clamp and the lower clamp is reasonably utilized, and a leakage-proof test can still be performed on the lateral to-be-tested channel under the condition that the mounting area of the lower clamp is small.

Description

Technical Field

[0001] The utility model relates to the technical field of detection, in particular to a device for leak detection. Background Art

[0002] In the production process of automotive parts, there are certain requirements for the sealing of products. Commonly used testing equipment such as the Chinese utility model patent "Camshaft cover leak tester hole sealing mechanism" with reference patent number CN202220875339.6 (publication number CN216978253U), the sealing mechanism includes four alignment guide heads arranged on the lower surface of the sealing bottom plate and close to the four corners of the sealing bottom plate, and four alignment guide cylinders corresponding to the alignment guide heads are arranged on the testing table. The alignment guide heads and the alignment guide cylinders are used to achieve the sealing of the workpiece by the blocking mechanism. However, if the product to be tested is, for example, Figure 1 The product 1' shown will have certain problems when it is tested using the standardized leak detection equipment as mentioned above.

[0003] like Figure 2 As shown, the channel 11' to be tested facing the side of the product 1' is basically aligned with the guide seat 21' on the lower fixture 2', and the gap d' between the sealing seat 22' on the lower fixture 2' and the guide seat 21' is relatively small, so that the installation area of ​​the area corresponding to the channel 11' to be tested on the lower fixture 2' is small. For different products to be tested, non-standard modifications are generally performed in the standardized leak detection equipment such as the above, and conventional standardized components are required to be installed to block the channel 11' to be tested. ', such as the driving source 3' and the bracket 31' for installing the driving source 3' in the reference figure, the bracket 31' is composed of a transverse portion 311' connected to the lower clamp 2' and a vertical portion 312' perpendicular to the transverse portion 311', but since the installation area of ​​the area on the lower clamp 2' corresponding to the channel 11' to be measured is insufficient, it is difficult to install the transverse portion 311' of the lower bracket 31' and the driving source 3' of the sealing mechanism at the same time, and therefore, further improvement is needed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a device capable of performing a leak-proof test on a lateral channel to be tested even when the installation area of ​​the lower clamp is small, in view of the above-mentioned existing technical status.

[0005] The technical solution adopted by the utility model to solve the above technical problems is: the device for leak detection includes:

[0006] The lower fixture is used to carry the object to be detected, the object to be detected includes a cavity to be detected facing the lower fixture, the object to be detected is provided with a first opening at the top and a second opening at the side;

[0007] An upper clamp, used for pressing the object to be detected;

[0008] An air intake mechanism, arranged on the lower fixture and / or the upper fixture, for supplying air to the cavity to be tested of the object to be tested;

[0009] It is characterized in that: the upper surface of the lower clamp is provided with a sealing seat corresponding to the cavity to be tested, the upper clamp is provided with a sealing piece capable of sealing the first opening, and the sealing mechanism for sealing the second opening is installed on the periphery of the sealing piece through a first connecting piece, and is suspended relative to the lower clamp.

[0010] In order to connect the blocking mechanism with the upper clamp, preferably, the first connecting member is in an inverted "L" shape, including a transverse portion connected to the upper clamp and a vertical portion perpendicular to the transverse portion, and the blocking mechanism is arranged at the end of the vertical portion. In fact, based on the "L" shape, the first connecting member can also be in other shapes such as "T" shape, and the focus is on the vertical portion perpendicular to the transverse portion. The vertical portion makes the blocking mechanism suspended relative to the lower clamp, and there is no need to have sufficient installation area on the lower clamp.

[0011] In order to prevent the first connecting member from occupying additional space, preferably, the blocking mechanism includes a blocking joint and a driving source for driving the blocking joint, the blocking joint is connected to the driving source through a transmission member, a gap is formed between the blocking joint and the driving source, the vertical portion is arranged between the gap, and the end of the vertical portion is provided with a mounting portion for mounting the driving source and a hollow portion for the transmission member to pass through, the vertical portion is arranged between the gap formed between the blocking joint and the driving source, that is, the blocking joint and the driving source are arranged on both sides of the vertical portion, and in fact, there must be such a gap between the blocking joint and the driving source, so the vertical portion reasonably utilizes the space of the gap, so that the first connecting member no longer occupies additional space.

[0012] Furthermore, in order to minimize the space occupied by the first connecting member and the blocking mechanism, preferably, the transverse portion and the driving source are located on the same side of the vertical portion. With such a design, the space formed between the transverse portion and the driving source is relatively small, and if other components such as reinforcing ribs need to be provided on the first connecting member, there are certain advantages in arranging the transverse portion and the driving source on the same side of the vertical portion. For example, if the transverse portion and the driving source are respectively located on both sides of the vertical portion, considering that the reinforcing ribs usually need to be provided on the vertical portion and extend toward the transverse portion, this will cause the reinforcing ribs to occupy a certain space toward the blocking member, making it easier to interfere with the blocking member.

[0013] Further design, in order to make the first connecting member have sufficient strength to suspend the blocking mechanism, preferably, the vertical portion is partially protruded with a reinforcing rib toward the transverse portion, and the reinforcing rib is connected to the transverse portion. Since the blocking mechanism needs to be suspended and considering the precision of the blocking process, it is necessary to provide reinforcing ribs and other components to ensure that the structure of the first connecting member is more stable.

[0014] Furthermore, in order to be able to identify the information of the object to be detected before the leak detection work is carried out, a code storing product information is also arranged between the first opening and the second opening of the object to be detected, and a scanning mechanism for scanning the code is also arranged on the upper clamp. The scanning mechanism is located between the blocking member and the blocking mechanism, and the scanning mechanism is connected to the upper clamp through a second connecting member, and is suspended relative to the lower clamp.

[0015] Considering that a label needs to be placed on the surface of the object to be detected after the leak detection work is carried out, preferably, the lower clamp is also provided with a marking mechanism for marking the surface of the object to be detected, and the marking mechanism is connected to the lower clamp through a bracket and is arranged adjacent to the second opening.

[0016] Compared with the prior art, the advantages of the utility model are: the sealing mechanism is added to the upper clamp through the first connecting piece, and the bracket originally occupying the installation space, namely the first connecting piece, is transferred to the upper clamp, so that only the sealing mechanism itself is left in the installation space, and the space between the upper clamp and the lower clamp is reasonably utilized, so that even if the installation area of ​​the lower clamp is small, the lateral channel to be tested can still be leak-proof tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the product in the background technology;

[0018] Figure 2 It is a structural schematic diagram of the product and the standardized leak detection equipment in the background technology;

[0019] Figure 3This is a schematic diagram of the structure of the object to be detected in the embodiment of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the device in the embodiment of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the device from another angle in the embodiment of the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the upper clamp in the embodiment of the utility model;

[0023] Figure 7 This is a structural schematic diagram of the blocking mechanism in the embodiment of the utility model;

[0024] Figure 8 It is a structural schematic diagram of the blocking mechanism and the local first connecting member in the embodiment of the utility model;

[0025] Fig. 9 This is a schematic diagram of the state of the device in the initial state in the embodiment of the utility model;

[0026] Fig.10 This is a schematic diagram of the state of the device in the final state in the embodiment of the utility model. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with specific embodiments.

[0028] like Figures 3 to 8 As shown, it is a preferred embodiment of the utility model. The leak detection device in this embodiment includes a lower fixture 2 for carrying an object to be detected 1, and the object to be detected 1 includes a cavity to be detected 11 facing the lower fixture 2, and the object to be detected 1 is provided with a first opening 12 that is connected to the cavity to be detected 11 at the top and a second opening 13 that is connected to the cavity to be detected 11 at the side. The device in this embodiment also includes an upper fixture 3 for pressing the object to be detected 1, and an air intake mechanism 4 arranged on the lower fixture 2 and / or the upper fixture 3 for supplying air to the cavity to be detected 11 of the object to be detected 1. Since the air intake mechanism 4 is relatively conventional, it will not be described in detail and will not be marked in the drawings. The upper surface of the lower clamp 2 is provided with a sealing seat 21 corresponding to the cavity 11 to be tested, and the upper clamp 3 is provided with a sealing member 31 capable of sealing the first opening 12. The sealing mechanism 32 for sealing the second opening 13 is installed on the periphery of the sealing member 31 through the first connecting member 33 and is suspended relative to the lower clamp 2.

[0029] The blocking mechanism 32 in this embodiment includes a blocking joint 321 and a driving source 322 for driving the blocking joint 321. The blocking joint 321 is connected to the driving source 322 through a transmission member 323. A gap 324 is formed between the blocking joint 321 and the driving source 322. The second opening 13 in this embodiment is a through hole, so the blocking joint 321 is a conventional internal expansion blocking joint. The driving source 322 is a cylinder. An inherent gap 324 is formed between the blocking joint 321 and the driving source 322. In order to connect the blocking mechanism 32 to the upper clamp 3, the first connecting member 33 is in an inverted "L" shape, including a horizontal portion 331 connected to the upper clamp 3 and a vertical portion 332 perpendicular to the horizontal portion 331. The blocking mechanism 32 is arranged at the end of the vertical portion 332. The vertical portion 332 is arranged between the gap 324 formed by the blocking joint 321 and the driving source 322, so as to reasonably utilize the space of the gap 324, so that the first connecting member 33 no longer occupies additional space. Furthermore, the end of the vertical portion 332 is provided with a mounting portion 333 for mounting the driving source 322 and a hollow portion 334 for the transmission member 323 to pass through, so that the blocking mechanism 32 is connected to the vertical portion 332. Further design, in order to minimize the space occupied by the first connecting member 33 and the blocking mechanism 32, the transverse portion 331 and the driving source 322 are located on the same side of the vertical portion 332, which is equivalent to the first connecting member 33 and the blocking mechanism 32 jointly occupying the space in this area. In addition, the vertical portion 332 is partially protruded with a reinforcing rib 335 toward the transverse portion 331, and the reinforcing rib 335 is connected to the transverse portion 331 to ensure that the structure of the first connecting member 33 is sufficiently stable.

[0030] In addition, in order to identify the information of the object to be detected 1 before the leak detection work is carried out, a code 14 storing product information is also provided between the first opening 12 and the second opening 13 of the object to be detected 1. To this end, a code scanning mechanism 5 for scanning the code 14 is also provided on the upper clamp 3. The code scanning mechanism 4 is located between the blocking member 31 and the blocking mechanism 32. The code scanning mechanism 4 is connected to the upper clamp 3 through the second connecting member 51 and is suspended relative to the lower clamp 2. Considering that it is necessary to label the surface of the object to be detected 1 after the leak detection work is carried out, a marking mechanism 6 for labeling the surface of the object to be detected 1 is also provided on the lower clamp 2. The marking mechanism 6 is connected to the lower clamp 2 through a bracket 61 and is arranged adjacent to the second opening 13.

[0031] The use process of the leak detection device provided in this embodiment is as follows:

[0032] like Fig. 9 As shown, the device is in the initial state, at which time the upper clamp 3 has not yet pressed the object 1 to be detected; see Fig.10, the device is in the final state, at this time, the upper clamp 3 has pressed the object to be detected 1, the code scanning mechanism 5 has completed the scanning of the code 14, the blocking member 31 has blocked the first opening 12, and similarly, the blocking joint 321 of the blocking mechanism 32 has completed the blocking of the second opening 13, so that the cavity 11 to be tested forms a closed independent space. After completing the leak detection work, the marking mechanism will mark the surface of the object to be detected 1. The dotted line on the marking mechanism 6 in the figure is Fig. 9 The position of the marking mechanism 6 in the middle.

Claims

1. A device for leak detection, comprising: The lower fixture (2) is used to carry the object to be detected (1), wherein the object to be detected (1) comprises a cavity to be detected (11) facing the lower fixture (2), and the object to be detected (1) is provided with a first opening (12) on the top and communicating with the cavity to be detected (11), and a second opening (13) on the side and communicating with the cavity to be detected (11); An upper clamp (3) for pressing the object to be detected (1); An air intake mechanism (4) is arranged on the lower fixture (2) and / or the upper fixture (3) and is used to supply air to the cavity (11) to be tested of the object (1) to be tested; Features: The upper surface of the lower clamp (2) is provided with a sealing seat (21) corresponding to the cavity (11) to be tested, and the upper clamp (3) is provided with a sealing member (31) capable of sealing the first opening (12), and a sealing mechanism (32) for sealing the second opening (13) is installed on the periphery of the sealing member (31) through a first connecting member (33) and is suspended relative to the lower clamp (2).

2. The device according to claim 1, characterized in that: The first connecting member (33) is in an inverted "L" shape, comprising a transverse portion (331) connected to the upper clamp (3) and a vertical portion (332) perpendicular to the transverse portion (331), and the blocking mechanism (32) is arranged at the end of the vertical portion (332).

3. The device according to claim 2, characterized in that: The blocking mechanism (32) comprises a blocking joint (321) and a driving source (322) for driving the blocking joint (321); the blocking joint (321) is connected to the driving source (322) via a transmission member (323); a gap (324) is formed between the blocking joint (321) and the driving source (322); the vertical portion (332) is arranged between the gap (324); and a mounting portion (333) for mounting the driving source (322) and a hollow portion (334) for the transmission member (323) to pass through are arranged at the end of the vertical portion (332).

4. The device according to claim 3, characterized in that: The lateral portion (331) and the driving source (322) are located on the same side of the vertical portion (332).

5. The device according to claim 4, characterized in that: The vertical portion (332) is partially protruded with a reinforcing rib (335) toward the transverse portion (331), and the reinforcing rib (335) is connected to the transverse portion (331).

6. The device according to any one of claims 1 to 5, characterized in that: A code (14) storing product information is also provided between the first opening (12) and the second opening (13) of the object (1) to be detected. A code scanning mechanism (5) for scanning the code (14) is also provided on the upper clamp (3). The code scanning mechanism (5) is located between the blocking member (31) and the blocking member (32). The code scanning mechanism (5) is connected to the upper clamp (3) via a second connecting member (51) and is suspended relative to the lower clamp (2).

7. The device according to claim 6, characterized in that: The lower fixture (2) is also provided with a marking mechanism (6) for marking a label on the surface of the object to be detected (1); the marking mechanism (6) is connected to the lower fixture (2) via a bracket (61) and is arranged adjacent to the second opening (13).

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