Airtightness detection device

Abstract

The utility model relates to an air tightness detection device which comprises a supporting mechanism, a side blocking mechanism and an upper pressing mechanism. The supporting mechanism comprises a bracket, a supporting plate, a profiling seat and a detection module; the profiling seat is fixed on the supporting plate; positioning blocks are arranged on the supporting plate and located on the periphery of the profiling base. An air inlet channel is formed in the supporting plate; the number of the detection modules is two, and each detection module comprises a photoelectric signal transmitter and a photoelectric signal receiver; the photoelectric signal transmitter and the photoelectric signal receiver are arranged on the supporting plate; the output end of the photoelectric signal transmitter and the input end of the photoelectric signal receiver are horizontally arranged and face each other; a linear channel hole is formed in the position, corresponding to the photoelectric signal transmitter, of the profiling base. The side plugging mechanism comprises a first cylinder and a side plugging block; the upper pressing mechanism comprises a second air cylinder and an upper pressing base. According to the utility model, whether the placing position of the to-be-detected metal shell is accurate or not can be rapidly and effectively detected, and the accuracy of subsequent airtightness detection is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of metal piece airtightness detection, in particular to an airtightness detection device. Background Art

[0002] like Figure 1 As shown, it is a shell component on a new energy vehicle. After it is processed, it needs to be tested for air tightness. When testing its air tightness, it needs to be installed on a fixture and then tested for air tightness. At present, the accuracy of its air tightness test is often poor due to inaccurate installation.

[0003] Therefore, it is desired to provide an airtight detection device in order to solve the above technical problems. Utility Model Content

[0004] The utility model aims to provide an airtight detection device, which can quickly and effectively detect whether the position of a metal shell to be detected is accurate, so as to ensure the accuracy of subsequent airtight detection thereof.

[0005] In order to achieve the purpose of the above utility model, an airtight detection device is provided, which includes a supporting mechanism, a side blocking mechanism and an upper pressing mechanism;

[0006] The support mechanism includes a bracket, a support plate, a contour seat and a detection module;

[0007] The support plate is arranged on the bottom upper surface of the bracket;

[0008] The profiling seat is fixed on the support plate, and the shape of the profiling seat is adapted to the shape of the metal shell to be detected;

[0009] A sealing ring is provided on the support plate at the bottom edge of the contour seat;

[0010] Positioning blocks are provided on the support plate around the contour seat;

[0011] An air inlet channel is provided in the support plate, an outlet of the air inlet channel is located on one side of the support plate, the air inlet channel extends all the way to the contour seat, and the outlet of the air inlet channel is located on the top of the contour seat;

[0012] The number of the detection modules is two, and each of the detection modules includes a photoelectric signal transmitter and a photoelectric signal receiver;

[0013] The photoelectric signal transmitter and the photoelectric signal receiver are arranged on the support plate and located on both sides of the contour seat;

[0014] The output end of the photoelectric signal transmitter and the input end of the photoelectric signal receiver are both arranged horizontally and face each other;

[0015] The profiling seat is provided with a linear passage hole for the position of the photoelectric signal transmitter, and the linear passage hole passes through the two side walls of the profiling seat;

[0016] The side blocking mechanism comprises a first cylinder and a side blocking block;

[0017] The first cylinder is arranged on the support plate, and the piston rod of the first cylinder is horizontally directed toward the contour seat;

[0018] The side block is arranged at the end of the piston rod of the first cylinder, and the side block always faces the inlet of the metal shell placed on the contour seat;

[0019] The upper pressing mechanism comprises a second cylinder and an upper pressing seat;

[0020] The second cylinder is arranged on the top of the bracket, and the piston rod of the second cylinder is vertically downward;

[0021] The upper pressing seat is vertically slidably arranged on the bracket, and the upper pressing seat is connected to the end of the piston rod of the second cylinder;

[0022] A plurality of pressure rods are vertically arranged on the lower surface of the upper pressure seat.

[0023] Preferably, a third cylinder is provided on the upper surface of the bottom of the bracket, the piston rod of the third cylinder is arranged horizontally, and the end of the piston rod of the third cylinder is connected to the support plate;

[0024] A slide rail is horizontally arranged on the upper surface of the bottom of the bracket, and the support plate is slidably arranged on the slide rail.

[0025] Furthermore, limit stops are fixed on the bottom upper surface of the bracket at both ends of the slide rail.

[0026] Preferably, handles are provided on both sides of the support plate.

[0027] Preferably, a spring is vertically provided at the bottom of the pressure rod, and a lower pressure head is provided at the lower end of the spring.

[0028] Preferably, the bottom upper surface of the bracket is vertically provided with limiting columns on both sides of the support plate, and the lower surface of the upper pressure seat is fixed with protrusions at positions facing the limiting columns.

[0029] Preferably, a fourth cylinder is provided on the support plate, and a piston rod of the fourth cylinder is arranged horizontally and points to the contour seat;

[0030] The end of the piston rod of the fourth cylinder is provided with a marking head.

[0031] Compared with the prior art, the utility model has the following advantages:

[0032] (1) By setting up a detection module, the position of the metal shell to be tested for airtightness can be quickly and accurately detected, thereby ensuring the accuracy of subsequent airtightness testing;

[0033] (2) Simple structure and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the structure of a metal shell in the background technology;

[0035] Figure 2 is a schematic structural diagram of an airtightness detection device of this embodiment;

[0036] Figure 3 for Figure 2 A partial enlarged view of the middle part;

[0037] Figure 4 This is a schematic diagram of the operation of an airtightness detection device of this embodiment. DETAILED DESCRIPTION

[0038] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0039] like Figure 2 As shown, an airtight detection device of the utility model comprises a supporting mechanism, a side blocking mechanism and an upper pressing mechanism.

[0040] The support mechanism includes a support 1, a support plate 2, a profiling seat 3 and a detection module; the support plate 2 is arranged on the bottom upper surface of the support 1; the profiling seat 3 is fixed on the support plate 2, and the shape of the profiling seat 3 is adapted to the shape of the metal shell to be detected; a sealing ring 4 is arranged on the support plate 2 at the bottom edge of the profiling seat 3; and positioning blocks 5 are arranged on the support plate 2 around the profiling seat 3. An air intake channel is arranged in the support plate 2, the outlet of the air intake channel is located on one side of the support plate 2, the air intake channel extends all the way to the profiling seat 3, and the outlet of the air intake channel is located at the top of the profiling seat 3.

[0041] like Figure 3 As shown, there are two detection modules, each of which includes a photoelectric signal transmitter 6 and a photoelectric signal receiver 7; the photoelectric signal transmitter 6 and the photoelectric signal receiver 7 are arranged on the support plate 2 and are located on both sides of the contour seat 3; the output end of the photoelectric signal transmitter 6 and the input end of the photoelectric signal receiver 7 are both arranged horizontally and face each other; a linear channel hole 8 is provided on the contour seat 3 for the position of the photoelectric signal transmitter 6, and the linear channel hole 8 passes through the two side walls of the contour seat 3.

[0042] like Figure 4As shown, the side blocking mechanism includes a first cylinder 9 and a side blocking block 10; the first cylinder 9 is arranged on the support plate 2, and the piston rod of the first cylinder 9 is horizontally pointed to the contour seat 3; the side blocking block 10 is arranged at the end of the piston rod of the first cylinder 9, and the side blocking block 10 always faces the inlet of the metal shell placed on the contour seat 3.

[0043] The upper pressing mechanism includes a second cylinder 11 and an upper pressing seat 12; the second cylinder 11 is arranged at the top of the bracket 1, and the piston rod of the second cylinder 11 is vertically downward; the upper pressing seat 12 is vertically slidably arranged on the bracket 1, and the upper pressing seat 12 is connected to the end of the piston rod of the second cylinder 11; a plurality of pressing rods 13 are vertically arranged on the lower surface of the upper pressing seat 12.

[0044] In this embodiment, a third cylinder 14 is provided on the bottom upper surface of the bracket 1, the piston rod of the third cylinder 14 is horizontally arranged, and the end of the piston rod of the third cylinder 14 is connected to the support plate 2; a slide rail 15 is horizontally provided on the bottom upper surface of the bracket 1, and the support plate 2 is slidably arranged on the slide rail 15; with such an arrangement, the support plate 2 can slide on the slide rail 15 by being driven by the third cylinder 14, which facilitates the loading and unloading of the metal shell.

[0045] Furthermore, limit blocks 16 are fixed on the bottom upper surface of the bracket 1 at both ends of the slide rail 15 to limit the moving path of the support plate 2 and prevent it from moving out of the slide rail 15 .

[0046] In this embodiment, in order to facilitate the carrying of the support plate 2 , handles 16 are provided on both sides of the support plate 2 .

[0047] like Figure 4 As shown, after the metal shell 17 is placed on the contour seat 3, it is preliminarily positioned by the positioning block 5; if the installation position of the metal shell 17 is accurate, the two photoelectric signal receivers 7 cannot receive the signal sent by the corresponding photoelectric signal transmitter 6, otherwise as long as one photoelectric signal receiver receives the signal sent by the corresponding photoelectric signal transmitter, the installation position of the metal shell 17 is inaccurate and needs to be readjusted; when the position is accurately installed, the first cylinder and the second cylinder are started, so that the side blocking block blocks the inlet of the metal shell, and the pressure rod on the upper pressure seat presses the top of the metal shell, and the airtightness detection can be carried out.

[0048] In this embodiment, a spring 18 is vertically provided at the bottom of the pressure rod 13, and a lower pressure head 19 is provided at the lower end of the spring 18. Such an arrangement enables the pressure rod 13 to have a certain buffering function to avoid damaging the metal shell.

[0049] Furthermore, the bottom upper surface of the bracket 1 is vertically provided with limit columns 20 on both sides of the support plate, and the lower surface of the upper pressure seat 12 is fixed with protrusions 21 at the positions opposite to the limit columns; such an arrangement further prevents the metal shell from being crushed by limiting the extreme position of the descent of the upper pressure seat 12.

[0050] In this embodiment, a fourth cylinder 22 is provided on the support plate 2, and the piston rod of the fourth cylinder 22 is horizontally arranged and points to the contour seat 3; a marking head 23 is provided at the end of the piston rod of the fourth cylinder 22. When unqualified products appear after the airtightness test is completed, the fourth cylinder 22 drives the marking head 23 to mark the metal shell placed on the contour seat 3 for subsequent processing.

[0051] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An airtight detection device, characterized in that: It includes a supporting mechanism, a side blocking mechanism and an upward pressing mechanism; The support mechanism includes a bracket, a support plate, a contour seat and a detection module; The support plate is arranged on the bottom upper surface of the bracket; The profiling seat is fixed on the support plate, and the shape of the profiling seat is adapted to the shape of the metal shell to be detected; A sealing ring is provided on the support plate at the bottom edge of the contour seat; Positioning blocks are provided on the support plate around the contour seat; An air inlet channel is provided in the support plate, an outlet of the air inlet channel is located on one side of the support plate, the air inlet channel extends all the way to the contour seat, and the outlet of the air inlet channel is located on the top of the contour seat; The number of the detection modules is two, and each of the detection modules includes a photoelectric signal transmitter and a photoelectric signal receiver; The photoelectric signal transmitter and the photoelectric signal receiver are arranged on the support plate and located on both sides of the contour seat; The output end of the photoelectric signal transmitter and the input end of the photoelectric signal receiver are both arranged horizontally and face each other; The profiling seat is provided with a linear passage hole for the position of the photoelectric signal transmitter, and the linear passage hole passes through the two side walls of the profiling seat; The side blocking mechanism comprises a first cylinder and a side blocking block; The first cylinder is arranged on the support plate, and the piston rod of the first cylinder is horizontally directed toward the contour seat; The side block is arranged at the end of the piston rod of the first cylinder, and the side block always faces the inlet of the metal shell placed on the contour seat; The upper pressing mechanism comprises a second cylinder and an upper pressing seat; The second cylinder is arranged on the top of the bracket, and the piston rod of the second cylinder is vertically downward; The upper pressing seat is vertically slidably arranged on the bracket, and the upper pressing seat is connected to the end of the piston rod of the second cylinder; A plurality of pressure rods are vertically arranged on the lower surface of the upper pressure seat.

2. An airtightness detection device as claimed in claim 1, characterized in that: A third cylinder is provided on the upper surface of the bottom of the bracket, the piston rod of the third cylinder is arranged horizontally, and the end of the piston rod of the third cylinder is connected to the support plate; A slide rail is horizontally arranged on the upper surface of the bottom of the bracket, and the support plate is slidably arranged on the slide rail.

3. An airtightness detection device as claimed in claim 2, characterized in that: Limiting blocks are fixed on the bottom upper surface of the bracket at both ends of the slide rail.

4. An airtightness detection device according to any one of claims 1 to 3, characterized in that: Handles are provided on both sides of the support plate.

5. The airtightness detection device according to claim 1, characterized in that: A spring is vertically arranged at the bottom of the pressure rod, and a lower pressure head is arranged at the lower end of the spring.

6. An airtightness detection device as claimed in claim 5, characterized in that: Limiting columns are vertically arranged on the upper surface of the bottom of the bracket at both sides of the support plate, and protrusions are fixed on the lower surface of the upper pressure seat at positions facing the limiting columns.

7. The airtightness detection device according to claim 1, characterized in that: A fourth cylinder is disposed on the support plate, and a piston rod of the fourth cylinder is disposed horizontally and points toward the contour seat; The end of the piston rod of the fourth cylinder is provided with a marking head.

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