Air tightness detection device of switch

Abstract

The utility model discloses an air tightness detection device of a switch. The air tightness detection device comprises a control system and a detection chamber. The two sides of the detection chamber are provided with sealing pressing plates which are oppositely arranged, the two groups of sealing pressing plates are driven by a driving part to realize relative displacement, the two groups of sealing pressing plates are respectively provided with a pressure measuring hole and an air inlet hole, and the pressure measuring hole is connected with a pressure gauge through an air pipe; the air inlet hole is connected with an external fan through a ventilation pipeline, and the ventilation pipeline is sequentially provided with an air inlet electromagnetic valve and a differential pressure gauge in the air path direction; the control system comprises a main control center, and the driving piece, the pressure gauge, the air inlet electromagnetic valve and the differential pressure gauge are all electrically connected with the main control center; the structure realizes the automation of the detection process, and improves the detection precision and efficiency; then the workpieces are fed into the detection cavity through the sliding rail assembly, so that feeding is more convenient and faster; the device is simple in structure, low in detection cost, high in detection efficiency and high in practicability.

Description

Technical Field

[0001] The utility model relates to the field of airtightness detection, in particular to an airtightness detection device for a switch. Background Technique

[0002] In the field of electronic equipment manufacturing, airtightness detection is an important link to ensure the performance and durability of equipment. At present, as the core equipment of network communication, the airtightness detection of switches usually adopts manual or semi-automatic methods, with low detection efficiency and low accuracy, which are difficult to meet the needs of modern production; in addition, the traditional detection device has deficiencies in sealing performance, which easily leads to inaccurate detection results and affects the stability and reliability of products. Therefore, it is particularly important to develop an airtightness detection device with high efficiency, accuracy and high automation. Content of the Utility Model

[0003] To solve the above technical problems, the utility model provides an airtightness detection device for a switch, which accurately controls the pressure and displacement in the detection process through a control system, and realizes the efficient and accurate airtightness detection of the switch.

[0004] The technical solution of the utility model is: it includes a workbench and an airtightness detection main body arranged on the workbench, and the airtightness detection main body includes a control system and a detection chamber;

[0005] On both sides of the detection chamber, there are relatively arranged sealing pressing plates. The two groups of sealing pressing plates realize relative displacement under the drive of a driving member. A pressure measuring hole and an air inlet hole are respectively arranged on the two groups of sealing pressing plates. The pressure measuring hole is connected to a pressure gauge through an air pipe; the air inlet hole is connected to an external fan through a ventilation pipe, and an air inlet solenoid valve and a differential pressure gauge are successively arranged on the ventilation pipe along the gas path direction;

[0006] The control system includes a main control center, and the driving member, the pressure gauge, the air inlet solenoid valve and the differential pressure gauge are all electrically connected to the main control center.

[0007] A further technical solution of it is: one side of the detection chamber is loaded through a slide rail assembly. One end of the slide rail assembly extends to the outside of the airtightness detection main body, and the other end extends into the detection chamber.

[0008] A further technical solution of it is: the slide rail assembly includes a slideway installed on the workbench, and the slideway extends into the detection chamber.

[0009] A further technical solution of it is: the slideway is a slide rail, and carriers for placing workpieces are arranged on multiple groups of slide rails installed side by side. The bottom of the carrier is provided with sliders matched with the slide rails.

[0010] A further technical solution thereof is that guide rails extending in the same direction are provided at the lower ends of the two groups of the sealing pressing plates, and the guide rails are fixedly arranged on the workbench.

[0011] A further technical solution thereof is that a guide rod is provided between the two groups of sealing pressing plates. One end of the guide rod is fixed to one group of the sealing pressing plates, and the other end slides through a linear bearing and passes through the other group of the sealing pressing plates.

[0012] A further technical solution thereof is that the slideway is slidably connected with the guide rail through a slider.

[0013] A further technical solution thereof is that the control system further includes an operation panel, which is electrically connected to the main control center. The operation panel includes a differential pressure gauge display window, a start key, a stop key, a time relay, a test indicator light, and a test result indicator light.

[0014] The beneficial technical effects of the present utility model are as follows: the relative displacement of the two groups of sealing pressing plates is realized by driving parts, and the driving parts, the pressure gauge, the air inlet solenoid valve, and the differential pressure gauge are all electrically connected to the control system, realizing the automation of the detection process, improving the detection accuracy and efficiency; and then the workpiece is sent into the detection chamber through the slide rail assembly, realizing a convenient feeding process, and further improving the detection efficiency and operation convenience. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a front view structure schematic diagram of the present utility model;

[0017] Figure 3 is a rear view structure schematic diagram of the present utility model;

[0018] Wherein: 1, workbench; 2, detection chamber; 3, feeding end; 4, slide rail assembly; 41, slideway; 42, carrier; 5, sealing pressing plate; 51, pressure measuring hole; 52, air inlet hole; 6, cylinder; 7, guide rail; 8, guide rod; 9, operation panel. Detailed Embodiments

[0019] In order to be able to more clearly understand the technical means of the present utility model and implement it according to the content of the specification, the following combines the drawings and embodiments to further describe in detail the specific embodiments of the present utility model. The following embodiments are used to illustrate the present utility model, but do not limit the scope of the present utility model.

[0020] Such as Figures 1 to 3As shown in the figure, a hermeticity detection device for a switch of the present utility model includes a workbench 1 and a hermeticity detection main body disposed on the workbench 1. The hermeticity detection main body includes a control system and a detection chamber 2; one side of the detection chamber 2 is provided with a feeding end 3, and the control system is used to control and monitor the entire hermeticity detection process and detection results.

[0021] The feeding end 3 is provided with a slide rail assembly 4. One end of the slide rail assembly 4 extends to the outside of the front end of the hermeticity detection main body for facilitating workpiece loading, and the other end extends into the detection chamber 2; the slide rail assembly 4 includes a slideway 41 installed on the workbench 1, and the slideway 41 extends into the detection chamber 2; specifically, the slideway 41 is a slide rail, and a carrier 42 for placing workpieces is provided on a plurality of slide rails installed side by side, and a slider matched with the slide rail is provided at the bottom of the carrier 42.

[0022] Sliders respectively fixed to the bottom of the carrier 42 are matched with a plurality of the slideways 41, and the carrier 42 drives the workpiece to slide back and forth along the slideway 41 between the workpiece loading position and the detection chamber 2.

[0023] Both sides of the detection chamber 2 are provided with relatively arranged sealing pressing plates 5. The air duct inlets and outlets of the workpiece to be tested are located at both ends of the workpiece, and the relatively arranged sealing pressing plates 5 fix and seal both ends of the workpiece; one group of the sealing pressing plates 5 is fixedly connected to the workbench 1, and a driving member is provided on the back side of the other group of the sealing pressing plates 5, and the output end of the driving member is fixedly connected to the sealing pressing plate 5; relative displacement of the two groups of the sealing pressing plates 5 is realized through the driving of the driving member, so as to clamp and adjust the workpiece, improving the detection accuracy and efficiency. In this embodiment, the driving member adopts a cylinder 6.

[0024] Further, guide rails 7 extending in the same direction are provided at the lower ends of the two groups of the sealing pressing plates 5, and the guide rails 7 are fixedly arranged on the workbench 1. Under the action of the pneumatic stroke of the cylinder 6, the corresponding sealing pressing plates 5 move along the guide rails 7 to adjust the distance between the two groups of the sealing pressing plates 5.

[0025] Further, a guide rod 8 is provided between the two groups of the sealing pressing plates 5. One end of the guide rod 8 is fixed to one group of the sealing pressing plates 5, and the other end slides through a linear bearing and penetrates through the other group of the sealing pressing plates 5 to ensure that the movement track is more stable during the relative sliding of the two groups of the sealing pressing plates 5; four groups of the linear bearings are provided, and are respectively arranged in two pairs on the upper and lower sides of the sealing pressing plates 5.

[0026] Further, a plurality of the guide rails 7 are provided, and the plurality of the slideways 41 are slidably connected to the guide rails 7 through sliders, so as to facilitate adjusting the position of the workpiece in the detection chamber 2.

[0027] Pressure measuring holes 51 and air inlet holes 52 are respectively arranged on the two groups of the sealing pressing plates 5. The pressure measuring holes 51 are connected with a pressure gauge through air pipes; the air inlet holes 52 are connected with an external fan through a ventilation duct. An air inlet solenoid valve and a differential pressure gauge are successively arranged on the ventilation duct along the gas path direction. The differential pressure gauge is connected with the ventilation duct through a pipe connector. Specifically, a differential pressure measuring pipe is connected to the pipe connector, and a measuring hole is formed in the differential pressure measuring pipe. The measuring hole is connected with the differential pressure gauge through two air pipes. The differential pressure gauge can directly detect the differential pressure and the leakage amount, so that it can quickly detect whether the workpiece has leakage.

[0028] The control system includes a main control center and an operation panel 9. The cylinder 6, the pressure gauge, the air inlet solenoid valve, and the differential pressure gauge are all electrically connected to the main control center. The operation panel 9 includes a differential pressure gauge display screen, a start key, a stop key, a time relay, a test indicator light, and a test result indicator light.

[0029] During operation, the workpiece is placed on the carrier 42 at the workpiece loading position. The carrier 42 drives the workpiece to slide into the detection chamber 2 and perform initial position adjustment. The relative position between the two groups of sealing pressing plates is adjusted by starting the cylinder 6 through the start key on the control panel 9, so that both ends of the workpiece are in a sealed state. When the main control center detects that the cylinder 6 is in place, the fan is started to inflate the air duct of the workpiece through the air inlet hole 52, and the reliability and stability of the seal are realized through the control of the cylinder 6 by the main control center during the detection process. When the main control center receives the signal that the pressure value in the air duct reaches the pressure requirement through the pressure gauge, the main control center controls the air inlet solenoid valve to close. At this time, the time relay starts to count. After the set pressure holding time, if the pressure value of the air duct of the workpiece is still within the set range, the "qualified" light is displayed in the test result indicator light. Press the stop key, the output end of the cylinder 6 resets, and then the workpiece is pulled out to complete the test. The whole detection process has a high degree of automation, improving the detection accuracy and efficiency.

[0030] This structure is simple, the detection cost is low, and it saves time and effort, has a high measurement efficiency, reliable measurement results, and strong practicability.

[0031] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present invention, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A switch air tightness detection device, characterized in that: It comprises a workbench (1) and an airtight detection body arranged on the workbench (1), wherein the airtight detection body comprises a control system and a detection chamber (2); The two sides of the detection chamber (2) are provided with sealing plates (5) arranged opposite to each other, and the two groups of sealing plates (5) are driven by the driving member to achieve relative displacement, and the two groups of sealing plates (5) are respectively provided with pressure measuring holes (51) and air inlet holes (52), and the pressure measuring holes (51) are connected to the pressure gauge through the air pipe; the air inlet holes (52) are connected to the external fan through the ventilation duct, and the ventilation duct is provided with an air inlet solenoid valve and a differential pressure gauge in sequence along the air path direction; The control system comprises a main control center, and the driving component, the pressure gauge, the air intake solenoid valve and the pressure differential gauge are all electrically connected to the main control center.

2. The air tightness detection device for a switch according to claim 1, characterized in that: One side of the detection chamber (2) is loaded with materials through a slide rail assembly (4), one end of the slide rail assembly (4) extends to the outside of the airtight detection body, and the other end extends into the detection chamber (2).

3. The air tightness detection device for a switch according to claim 2, characterized in that: The slide rail assembly (4) comprises a slideway (41) mounted on the workbench (1), and the slideway (41) extends into the detection chamber (2).

4. The air tightness detection device for a switch according to claim 3, characterized in that: The slideway (41) is a slide rail, and a plurality of sets of slide rails installed side by side are provided with a carrier (42) for placing workpieces, and a sliding block matching the slide rail is provided at the bottom of the carrier (42).

5. The air tightness detection device for a switch according to claim 3, characterized in that: The lower ends of the two groups of sealing pressure plates (5) are provided with guide rails (7) extending in the same direction, and the guide rails (7) are fixed on the workbench (1).

6. The air tightness detection device for a switch according to claim 5, characterized in that: A guide rod (8) is provided between the two groups of sealing pressure plates (5), one end of the guide rod (8) is fixed on one group of sealing pressure plates (5), and the other end slides through a linear bearing and is penetrated by the other group of sealing pressure plates (5).

7. The air tightness detection device for a switch according to claim 5, characterized in that: The slideway (41) is slidably connected to the guide rail (7) via a slider.

8. The air tightness detection device for a switch according to claim 1, characterized in that: The control system further comprises an operation panel (9), wherein the operation panel (9) is electrically connected to the main control center, and the operation panel (9) comprises a differential pressure gauge display window, a start button, a stop button, a time relay, a test indicator light, and a test result indicator light.

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