Multi-station air tightness detection platform

Abstract

The utility model relates to the technical field of multi-station air tightness detection, and discloses a multi-station air tightness detection platform, which comprises a water tank, an operation table is arranged above the water tank, a plurality of fixed seats are fixedly connected to the bottom end in the operation table, annular grooves are formed in the outer sides of the fixed seats, and the fixed seats are fixedly connected with the operation table. Four annular clamping blocks are slidably connected into the annular groove, a rotating rod is rotatably connected into the fixing base, four pull ropes are fixedly connected to the outer side of the rotating rod, springs sleeve the outer sides of the pull ropes, a worm wheel is fixedly connected to the bottom of the rotating rod, and a worm is rotatably connected into the lower side of the fixing base. And the worm gear is meshed with the worm. According to the utility model, cylindrical to-be-detected pieces of different specifications can be fixed by using the annular clamping blocks on the outer side of the fixed seat, the to-be-detected pieces are prevented from being deformed and deflected due to compression in the fastening process, the accuracy of the detection result is not influenced, and the fan can ensure the dryness of the to-be-detected pieces after detection.

Description

TECHNICAL FIELD

[0001] The utility model relates to multi -station air -tightness detection technical field especially relates to a multi -station air -tightness detection platform. BACKGROUND

[0002] The utility model relates to a kind of multi -station air -tightness detection platform, to improve the efficiency and accuracy of air tightness detection.The platform adopts modular design, with multiple detection stations, can simultaneously carry out air tightness test to multiple specifications of the measured piece.Its core structure includes air tightness detection unit and automatic clamping device.Air tightness detection unit can be flexibly adjusted according to the specification and shape of different measured pieces, ensure that good sealing environment is formed in the detection process, widely used in air tightness detection of automobile, aviation, electronics and machinery industry.

[0003] However, the existing multi-station air-tightness detection platform has certain technical problems when fixing different sizes of measured pieces. Specifically, during the detection process, the measured piece may be deflected due to the unreasonable design of the fixing device during tightening, which directly affects the air tightness test results and leads to inaccurate detection data. Due to the difference in size of different specifications of measured pieces, the existing clamping device often fails to achieve stable fixation, thereby increasing the risk of detection error.

[0004] To solve the above problems, a multi-station air-tightness detection platform is proposed. Utility model content

[0005] To make up for the above shortcomings, the utility model provides a kind of multi-station air-tightness detection platform, to solve the problem that measured piece may be deflected due to the unreasonable design of the fixing device during tightening in the detection process, which directly affects the air tightness test results and leads to inaccurate detection data.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: a kind of multi-station air-tightness detection platform, including water tank, the rear side of the water tank is provided with support, the upper side of the water tank is provided with operation table, the inside bottom end of the operation table is fixedly connected with multiple fixed seats, the outer side of the fixed seat is equipped with annular groove, four annular clamping blocks are slidably connected in the annular groove, the inside of the fixed seat is rotatably connected with the rotating rod, the outer side of the rotating rod is fixedly connected with four pull ropes, the outer side of the pull rope is sleeved with spring, the bottom of the rotating rod is fixedly connected with worm wheel, the inside of the lower side of the fixed seat is rotatably connected with worm, the worm wheel is engaged with the worm.

[0007] Further description of the above technical scheme:

[0008] A fan is installed on the front side of the bracket, and the fan faces the detection element covered with water.

[0009] As a further description of the above technical solution:

[0010] The top of the operating table is fixedly connected with a cylinder, and the output end of the cylinder is fixedly connected with an upper pressing plate.

[0011] As a further description of the above technical solution:

[0012] A plurality of upper clamping seats are fixedly connected to the bottom of the upper pressing plate. The interior of the upper pressing plate is hollow. An air pipe is installed inside the upper pressing plate. The other end of the air pipe is fixedly connected to an inflation device.

[0013] As a further description of the above technical solution:

[0014] The outer side of the fixing seat is plugged with a piece to be tested, and the opposite sides of the four annular clamping blocks are in contact with the inner wall of the piece to be tested.

[0015] As a further description of the above technical solution:

[0016] One end of the pull rope away from the rotating rod is fixedly connected to the outer side of the annular clamping block.

[0017] As a further description of the above technical solution:

[0018] The spring is located at the inner slot of the fixing seat, one end of the spring is fixedly connected to the inside of the annular block, and the other end of the spring is fixedly connected to the inside of the fixing seat.

[0019] As a further description of the above technical solution:

[0020] A torsion bar is installed at one end of the worm away from the fixing seat.

[0021] As a further description of the above technical solution:

[0022] The water tank is made of transparent high-strength glass and is filled with clean water. A lifting device is provided below the water tank to lift the water tank so that the test piece can enter the water tank.

[0023] The utility model has the following beneficial effects:

[0024] 1. In the present invention, in order to ensure the stability of the workpiece to be tested on the operating table, the cylindrical workpiece to be tested can be inserted on the outside of the fixing seat. Since a plurality of annular clamping blocks are installed on the outside of the fixing seat, it is necessary to rotate the torsion bar before fixing the workpiece to be tested. The worm drives the worm gear to rotate, thereby driving the rotating rod inside the fixing seat to rotate. The annular clamping blocks around it are pulled by a pull rope to slide into the annular groove provided on the fixing seat. After the workpiece to be tested is placed, the torsion bar is released. Under the action of the spring, the annular clamping blocks abut against the inner wall of the workpiece to be tested, which can fix the workpieces of different specifications and sizes, preventing the workpieces to be tested from deflecting during the detection process and affecting the detection results.

[0025] 2. In the present invention, the air pipe can be used to simultaneously inject air into multiple test pieces, which reduces the number of equipment and also reduces costs. The fan is used to quickly dry the test pieces after testing, thus preventing the test pieces from rusting due to water stains, which would affect their subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional schematic diagram of a multi-station air tightness testing platform proposed by the present invention;

[0027] Figure 2 This is a structural schematic diagram of a bracket for a multi-station air tightness testing platform proposed in the present invention;

[0028] Figure 3 This is a structural diagram of an upper pressure plate of a multi-station air tightness testing platform proposed in the utility model;

[0029] Figure 4 This is a structural diagram of the air pipe of a multi-station air tightness testing platform proposed by the utility model;

[0030] Figure 5 This is a structural schematic diagram of a fixing base of a multi-station air tightness testing platform proposed in the present invention;

[0031] Figure 6 This is a structural diagram of an annular clamping block of a multi-station air tightness testing platform proposed by the present invention;

[0032] Figure 7 This is a structural schematic diagram of a worm gear of a multi-station air tightness testing platform proposed by the utility model.

[0033] Legend:

[0034] 1. Water tank; 2. Operating table; 3. Cylinder; 4. Bracket; 5. Fan; 6. Upper pressure plate; 7. Upper clamping seat; 8. Air pipe; 9. Fixed seat; 10. Torsion bar; 11. Annular clamping block; 12. Spring; 13. Pull rope; 14. Turning rod; 15. Worm gear; 16. Worm. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] Reference Figure 1 - Figure 2 and Figure 5 - Figure 7 The utility model provides an embodiment: a multi-station air tightness testing platform, including a water tank 1, an operating table 2 is arranged above the water tank 1, the bottom end of the inner part of the operating table 2 is fixedly connected to a plurality of fixing seats 9, the outer side of the fixing seat 9 is plugged with a test piece, the outer side of the fixing seat 9 is provided with an annular groove, the inner side of the annular groove is slidably connected with four annular blocks 11, the inner side of the fixing seat 9 is rotatably connected to a rotating rod 14, the outer side of the rotating rod 14 is fixedly connected to four pull ropes 13, the outer side of the pull rope 13 is provided with a spring 12, and the bottom of the rotating rod 14 is fixed. A worm gear 15 is fixedly connected, and a worm 16 is rotatably connected to the lower side of the fixed seat 9. The worm gear 15 and the worm 16 are meshed, and the opposite sides of the four annular blocks 11 are in contact with the inner wall of the test piece. The end of the pull rope 13 away from the rotating rod 14 is fixedly connected to the outside of the annular block 11, and the spring 12 is located at the internal slot of the fixed seat 9. One end of the spring 12 is fixedly connected to the inside of the annular block 11, and the other end of the spring 12 is fixedly connected to the inside of the fixed seat 9. A torsion bar 10 is installed on the end of the worm 16 away from the fixed seat 9.

[0037] Specifically, in this embodiment, an operating table 2 is provided above the water tank 1, and a plurality of fixing seats 9 are fixedly connected to the bottom end of the inner part of the operating table 2. The outside of the fixing seat 9 can be inserted into the test piece. Before that, it is necessary to rotate the torsion bar 10 to drive the worm 16 and the worm gear 15 inside the fixing seat 9 to rotate, thereby driving the rotating rod 14 to rotate along a preset direction. Four pull ropes 13 are fixedly connected to the outside of the rotating rod 14. After the rotating rod 14 rotates, the pull ropes 13 can be wound around the outside of the rotating rod 14, so that the other end of the pull rope 13 can pull the annular block 11 located around the fixing seat 9 to slide in the opposite direction and compress the plurality of springs 12 located in the slots inside the fixing seat 9. At this time, the test piece can be inserted into the outside of the fixing seat 9. After that, after loosening the torsion bar 10, under the action of the spring 12, the annular block 11 can slide toward the four sides of the inside of the test piece and abut against the inner wall of the test piece, ensuring the stability of the test piece during the air tightness test, thereby ensuring the accuracy of the test results.

[0038] Reference Figure 2 - Figure 4A bracket 4 is provided on the rear side of the water tank 1, and a fan 5 is installed on the front side of the bracket 4. The fan 5 is facing the test piece covered with water. The top of the operating table 2 is fixedly connected to the cylinder 3, and the output end of the cylinder 3 is fixedly connected to the upper pressure plate 6. The bottom of the upper pressure plate 6 is fixedly connected to multiple upper holders 7. The interior of the upper pressure plate 6 is hollow, and an air pipe 8 is installed inside the upper pressure plate 6. The other end of the air pipe 8 is fixedly connected to an inflation device. The water tank 1 is made of transparent high-strength glass and is filled with clean water. A lifting device is provided at the bottom of the water tank 1 to lift the water tank 1 so that the test piece enters the interior of the water tank 1.

[0039] Specifically, a cylinder 3 is connected to the top of the operating table 2. After the test starts, the cylinder 3 drives the upper pressure plate 6 below to move downward, and the upper clamping seat 7 will contact the top of the test piece plugged into the outside of the fixing seat 9. The inside of the upper clamping seat 7 is plugged into the outside of the top of the test piece to ensure the sealing of the connection between the two. The inside of the water tank 1 is filled with clean water and under the action of the lifting device, the upper clamping seat 7, the fixing seat 9 and the test piece are finally immersed in the clean water. At this time, air can be injected into the upper pressure plate 6 through the air pipe 8, and the air is injected into the test piece through the upper clamping seat 7. Since the test piece is a hollow cylindrical shape and the upper and lower sides are sealed, when the test piece is immersed in the water tank 1, the water tank 1 is made of transparent material, and the air tightness of the test piece can be judged according to whether bubbles are generated in the water. After the test is completed, in order to prevent the test piece from rusting due to water, the fan 5 located on the front side of the bracket 4 needs to be started to blow away the water stains on the outside of the test piece.

[0040] Working principle: The cylinder 3 drives the upper pressure plate 6 to move downward, and the upper clamping seat 7 below the upper pressure plate 6 moves downward to clamp the workpiece to be tested fixed on the outside of the fixing seat 9. At this time, air is injected into the interior of the workpiece to be tested through the air pipe 8. Then the water tank 1 can be pushed upward until the clean water covers the workpiece to be tested. Since the interior of the workpiece to be tested is full of air, a large number of bubbles will be generated in the water if the air tightness is not good. The water tank 1 is made of transparent material to facilitate observation and recording by the test personnel. After the test is completed, in order to ensure the dryness of the workpiece to be tested, the fan 5 on the front side of the bracket 4 can be started to blow away the water stains on the outside of the workpiece to be tested.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-station air tightness testing platform, comprising a water tank (1), characterized in that: A bracket (4) is provided on the rear side of the water tank (1), and an operating table (2) is provided above the water tank (1). The inner bottom end of the operating table (2) is fixedly connected to a plurality of fixing seats (9), an annular groove is provided on the outer side of the fixing seat (9), and four annular blocks (11) are slidably connected inside the annular groove. A rotating rod (14) is rotatably connected inside the fixing seat (9), and four pull ropes (13) are fixedly connected on the outer side of the rotating rod (14). A spring (12) is sleeved on the outer side of the pull rope (13), and a worm gear (15) is fixedly connected to the bottom of the rotating rod (14). A worm (16) is rotatably connected inside the lower side of the fixing seat (9), and the worm gear (15) is meshed with the worm gear (16).

2. The multi-station air tightness testing platform according to claim 1, characterized in that: A fan (5) is installed on the front side of the bracket (4), and the fan (5) faces the detection part that is soaked with water.

3. The multi-station air tightness testing platform according to claim 1, characterized in that: The top of the operating table (2) is fixedly connected to a cylinder (3), and the output end of the cylinder (3) is fixedly connected to an upper pressing plate (6).

4. The multi-station air tightness testing platform according to claim 3, characterized in that: The bottom of the upper pressing plate (6) is fixedly connected to a plurality of upper clamping seats (7), the interior of the upper pressing plate (6) is hollow, an air pipe (8) is installed inside the upper pressing plate (6), and the other end of the air pipe (8) is fixedly connected to an inflation device.

5. The multi-station air tightness testing platform according to claim 1, characterized in that: The outer side of the fixing seat (9) is plugged with a piece to be tested, and the opposite sides of the four annular clamping blocks (11) are in contact with the inner wall of the piece to be tested.

6. The multi-station air tightness testing platform according to claim 1, characterized in that: One end of the pull rope (13) away from the rotating rod (14) is fixedly connected to the outside of the annular clamping block (11).

7. The multi-station air tightness testing platform according to claim 1, characterized in that: The spring (12) is located at the internal slot of the fixing seat (9), one end of the spring (12) is fixedly connected to the inside of the annular block (11), and the other end of the spring (12) is fixedly connected to the inside of the fixing seat (9).

8. The multi-station air tightness testing platform according to claim 1, characterized in that: A torsion bar (10) is mounted on one end of the worm (16) away from the fixing seat (9).

9. The multi-station air tightness testing platform according to claim 1, characterized in that: The water tank (1) is made of transparent high-strength glass and is filled with clean water. A lifting device is provided below the water tank (1) for lifting the water tank (1) so that the test piece enters the water tank (1).

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