Universal air tightness test fixture

Abstract

The utility model discloses a general airtightness test fixture, which relates to the technical field of test fixtures and comprises a workbench, the top of the workbench is fixedly connected with a placement seat, the top of the placement seat is provided with a pair of guide grooves, guide plates are slidably mounted in the guide grooves, and the tops of the guide plates are fixedly connected with clamping plates. A driving assembly is arranged between the two guide plates, a back plate is arranged on the rear side of the workbench, a lifting groove is formed in the front end of the back plate, a mounting plate is slidably mounted in the lifting groove, and a connecting piece is arranged at the front end of the mounting plate. The driving assembly and the connecting piece are arranged, the rotating plate is matched with the connecting rod, the guide plate drives the clamping plates to be close to each other, connectors of different sizes are clamped and fixed, then the airtight connector is easy to disassemble and assemble through the fixing bolt, a worker can conveniently replace a matched connector to be connected with the connector, use is flexible, and the working efficiency is improved. The stability in the test process is improved, and the accuracy of the test result is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to test fixture technical field, concretely relates to a general airtightness test fixture. BACKGROUND

[0002] The battery of new energy automobile needs to be connected with external charging device or electric equipment in the operation process, and the airtightness of these connectors is tested to ensure that the battery can be charged and discharged stably, and then the stable operation of new energy automobile is ensured.

[0003] At present, the traditional airtightness test fixture is mainly used for testing the same type of connector, and the adaptability is not good when facing different types of connectors, which can affect the accuracy of test results and reduce the applicability of the device. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, a general airtightness test fixture is provided, which solves the problem of the traditional airtightness test fixture in the background art, which is mainly used for testing the same type of connector, and the adaptability is not good when facing different types of connectors, which can affect the accuracy of test results and reduce the applicability of the device.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A general airtightness test fixture, comprising a workbench, the top of the workbench is fixedly connected with a placing seat, the top of the placing seat is provided with a guide groove on the left and right sides, the inside of the guide groove is slidably installed with a guide plate, the top of the guide plate is fixedly connected with a clamping plate, a driving assembly is arranged between the two guide plates, the top rear side of the workbench is fixedly connected with a back plate, the front end of the back plate is provided with a lifting groove, the inside of the lifting groove is slidably installed with a mounting plate, and the front end of the mounting plate is provided with a connecting piece.

[0007] Optionally, the driving assembly comprises a stand and a cylinder one, the stand is fixedly connected to the top of the workbench, the top of the stand is rotatably installed with a rotating plate, the top of the rotating plate is rotatably connected with a connecting rod at the front and rear ends, the other ends of the two connecting rods are respectively hinged to the sides of the two guide plates, the cylinder one is fixedly installed on the top right side of the workbench, and the output end of the cylinder one is fixedly connected with the right end of the right guide plate.

[0008] Optionally, the top rear side of the placing seat is provided with a limiting baffle, the rear end of the back plate is fixedly installed with a cylinder two, the output end of the cylinder two penetrates through the rear side of the back plate and is fixedly connected with the rear end of the limiting baffle, and the bottom of the limiting baffle is slidably connected with the top of the placing seat.

[0009] Optionally, the connecting piece comprises a mounting block, the mounting block is slidingly connected to the front end of the mounting plate, the top of the mounting block is fixedly connected with a fixed plate, the top of the fixed plate is threadedly connected with a plurality of fixing bolts, the bottom of the mounting block is fixedly installed with an airtight joint, and the front end of the mounting block is fixedly installed with an air pipe interface.

[0010] Optionally, a screw rod is rotatably installed in the lifting groove, the surface of the screw rod is threadedly connected with the rear end of the mounting plate, the top of the back plate is fixedly installed with a driving motor, and the output end of the driving motor penetrates through the top of the back plate and is fixedly connected with the upper end of the screw rod.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1. The driving assembly and the connecting piece are arranged, the guide plate and the clamping plate are matched through the driving assembly and the connecting piece, the guide plate drives the clamping plate to approach each other, different size connectors are clamped and fixed, the airtight joint is easy to disassemble and assemble through the fixing bolt, the staff can replace the adapter and the connector, the stability in the test process is improved, and the accuracy of the test result is ensured.

[0013] 2. The limiting baffle is arranged, the limiting baffle pushes the connector on the placing seat to move, the front and back positions of the connector are adjusted according to the size of the connector, the connector is fixed under the airtight joint through the clamping plate, the airtight joint and the connector are connected and tested through the mounting plate, the structure is simple, the operation is convenient, and the practicability of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0015] Figure 2 It is a three-dimensional structure sectional view of the utility model.

[0016] Reference numerals in the drawing are:

[0017] 1, workbench; 2, placing seat; 3, guide groove; 4, guide plate; 5, clamping plate; 6, driving assembly; 61, stand; 62, rotating plate; 63, connecting rod; 64, air cylinder one; 7, back plate; 71, driving motor; 8, lifting groove; 81, screw rod; 9, mounting plate; 10, connecting piece; 101, mounting block; 102, fixed plate; 103, fixing bolt; 104, airtight joint; 105, air pipe interface; 11, limiting baffle; 12, air cylinder two. DETAILED DESCRIPTION

[0018] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments in the following description are only as examples, and other obvious variants can be thought of by those skilled in the art.

[0019] Referring to Figure 1 As shown in the figure, a general airtightness test fixture includes a workbench 1, the top of the workbench 1 is fixedly connected with a placing seat 2, the top of the placing seat 2 is provided with a guide groove 3 on the left and right sides, the inside of the guide groove 3 is slidably installed with a guide plate 4, the top of the guide plate 4 is fixedly connected with a clamping plate 5, a driving assembly 6 is arranged between the two guide plates 4, the top rear side of the workbench 1 is fixedly connected with a back plate 7, the front end of the back plate 7 is provided with a lifting groove 8, the inside of the lifting groove 8 is slidably installed with a mounting plate 9, the front end of the mounting plate 9 is provided with a connecting piece 10, in use, the connector to be tested is placed on the top of the placing seat 2, the front and rear positions of the connector are adjusted through the limiting baffle 11, the guide plate 4 drives the clamping plate 5 to approach each other through the cooperation of the rotating plate 62 and the connecting rod 63 in the driving assembly 6, the connector is flexibly fixed according to its size, the stability of the connector in the test process is improved, the corresponding airtight joint 104 is replaced, the airtight joint 104 is pressed against the connector through the mounting plate 9, the gas pipe interface 105 is connected with the external test gas pipe, a certain pressure gas is injected into the connector, the external monitoring device is used to continuously monitor the change of the air pressure, and then whether the airtightness of the connector meets the standard is judged, the use is flexible, and the accuracy of the detection result is ensured.

[0020] Further, as Figure 2As shown, the driving assembly 6 comprises a column 61 fixedly connected to the top of the workbench 1, a rotating plate 62 rotatably installed at the top of the column 61, a connecting rod 63 rotatably connected to the top of the rotating plate 62, and a cylinder 64 fixedly installed at the top right side of the workbench 1. The other end of each of the two connecting rods 63 is hingedly connected to the side of the two guide plates 4 close to each other. The output end of the cylinder 64 is fixedly connected to the right end of the right guide plate 4. The top rear side of the placing seat 2 is provided with a limiting baffle 11. The rear end of the back plate 7 is fixedly installed with a cylinder 12. The output end of the cylinder 12 penetrates through the rear side of the back plate 7 and is fixedly connected to the rear end of the limiting baffle 11. The bottom of the limiting baffle 11 is slidably connected to the top of the placing seat 2. The limiting baffle 11 is moved by the cylinder 12. The limiting baffle 11 pushes the connector to move. The front and rear positions are adjusted according to the size of the connector. The right guide plate 4 is moved by the cylinder 64. The right guide plate 4 drives the rotating plate 62 to rotate through the right connecting rod 63. In turn, the rotating plate 62 drives the left guide plate 4 to move through the left connecting rod 63. The two guide plates 4 drive the two clamping plates 5 to move close to each other, thereby clamping and fixing the connector. It is flexible and suitable for fixing work of connectors of different sizes, and the stability during testing is improved.

[0021] The connecting piece 10 comprises a mounting block 101 slidably connected to the front end of the mounting plate 9, a fixed plate 102 fixedly connected to the top of the mounting block 101, a plurality of fixed bolts 103 threadedly connected to the top of the fixed plate 102, an airtight joint 104 fixedly installed at the bottom of the mounting block 101, and an air pipe interface 105 fixedly installed at the front end of the mounting block 101. A screw rod 81 is rotatably installed in the inside of the lifting groove 8. The surface of the screw rod 81 is threadedly connected to the rear end of the mounting plate 9. A driving motor 71 is fixedly installed at the top of the back plate 7. The output end of the driving motor 71 penetrates through the top of the back plate 7 and is fixedly connected to the upper end of the screw rod 81. Before testing, replace the airtight joint 104 more suitable for the type of connector, and slide the airtight joint 104 together with the mounting block 101 to the front end of the mounting plate 9. Tighten the fixed bolts 103 to complete the installation of the airtight joint 104. Rotate the screw rod 81 by the driving motor 71. The screw rod 81 drives the mounting plate 9 to move along the lifting groove 8. The mounting plate 9 drives the airtight joint 104 to compress the connector. Connect the external test air pipe with the air pipe interface 105. Inject a certain pressure of gas into the connector for testing to ensure the accuracy of the test results and improve the practicality of the device.

[0022] The working principle of the utility model is: when using, the connector to be tested is placed on the placing seat 2, the suitable airtight joint 104 is fixed on the front end of the mounting plate 9 together with the mounting block 101 according to the type of the connector, and the gas pipe interface 105 is communicated with the external test gas pipe, the air cylinder two 12 is started, the connector is moved by the limiting baffle 11, the front and rear positions of the connector are adjusted according to the size of the connector, the air cylinder one 64 is started, the guide plate 4 drives the clamping plate 5 to approach each other by the cooperation of the rotating plate 62 and the connecting rod 63, the connector is clamped and fixed, the driving motor 71 is started, the airtight joint 104 is lowered by the mounting plate 9, the connector is compressed, and a certain pressure gas is injected into the connector, the pressure change is continuously monitored by the external monitoring device, and then whether the airtightness of the connector meets the standard is judged, and the accuracy of the test result is ensured.

[0023] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by the skilled in the art that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only the principles of the utility model. The utility model can have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the claimed utility model. The protection scope required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A universal hermeticity test fixture, characterized by: Including workbench (1), the top of workbench (1) is fixedly connected with placing seat (2), the top of placing seat (2) is provided with guide slot (3) on both sides, the inside of guide slot (3) is slidably installed with guide plate (4), the top of guide plate (4) is fixedly connected with clamping plate (5), drive assembly (6) is arranged between two guide plates (4), the top rear side of workbench (1) is fixedly connected with back plate (7), the front end of back plate (7) is provided with lifting groove (8), the inside of lifting groove (8) is slidably installed with mounting plate (9), the front end of mounting plate (9) is provided with connecting piece (10).

2. The universal air tightness test fixture of claim 1, wherein: The drive assembly (6) includes a column (61) and a cylinder (64), the column (61) is fixedly connected to the top of the workbench (1), the top of the column (61) is rotatably installed with a rotating plate (62), the top of the rotating plate (62) is rotatably connected with a connecting rod (63) at both ends, the other ends of the two connecting rods (63) are respectively hinged to the side of the two guide plates (4) close to each other, the cylinder (64) is fixedly installed on the top right side of the workbench (1), and the output end of the cylinder (64) is fixedly connected with the right end of the right guide plate (4).

3. The universal air tightness test fixture of claim 1, wherein: The top rear side of the placing seat (2) is provided with a limiting baffle (11), the rear end of the back plate (7) is fixedly installed with a cylinder (12), the output end of the cylinder (12) penetrates through the rear side of the back plate (7) and is fixedly connected with the rear end of the limiting baffle (11), and the bottom of the limiting baffle (11) is slidably connected with the top of the placing seat (2).

4. The universal air tightness test fixture of claim 1, wherein: The connecting piece (10) includes a mounting block (101), the mounting block (101) is slidably connected to the front end of the mounting plate (9), the top of the mounting block (101) is fixedly connected with a fixed plate (102), the top of the fixed plate (102) is threadedly connected with a plurality of fixed bolts (103), the bottom of the mounting block (101) is fixedly installed with a gas-tight joint (104), and the front end of the mounting block (101) is fixedly installed with a gas pipe interface (105).

5. The universal air tightness test fixture of claim 1, wherein: The inside of the lifting groove (8) is rotatably installed with a screw rod (81), the surface of the screw rod (81) is threadedly connected with the rear end of the mounting plate (9), the top of the back plate (7) is fixedly installed with a driving motor (71), and the output end of the driving motor (71) penetrates through the top of the back plate (7) and is fixedly connected with the upper end of the screw rod (81).

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