Pneumatic single board testing equipment

Abstract

The utility model discloses a pneumatic single board testing device, which comprises a shielding box assembly, an upper template, a horizontal template and a lower counterweight plate are sequentially arranged in the shielding box assembly along the gravity direction, the upper template is provided with a testing station and is electrically connected with a testing assembly, the horizontal template is provided with a transition station capable of passing through the lower counterweight plate, and the lower counterweight plate is electrically connected with the testing assembly. The horizontal template can move between a first position and a second position, so that the horizontal template can move from the first position to the second position, and a worker can conveniently place a single board outside the shielding box assembly; and then, the horizontal template returns to the first position, the lower counterweight plate ascends in the direction close to the upper template, and the single plate on the horizontal template at the first position is jacked to the test station from the transition station, so that a shielding test can be conveniently carried out on the single plate on the test station subsequently. By the adoption of the pneumatic single board testing equipment, single boards can be taken and placed more conveniently, automatic feeding and discharging are achieved, the testing efficiency and consistency are further improved, and meanwhile the production efficiency and the product quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to single board test technical field especially relates to a pneumatic single board test equipment. BACKGROUND

[0002] Single board usually refers to single circuit board (also called printed circuit board, PCB), it is an essential component in electronic equipment. Single board is installed with various electronic components, and forms complete circuit function through electrical connection.

[0003] The existing single board is put into use before, and its performance is tested, and the common test fixture is manual pressing type and lifting type box mechanism, the two test fixtures are respectively fixed with the upper needle plate and the lower needle plate with the conductive needle on the upper part and the lower part of the fixture, and the tested single board is accurately placed between the upper needle plate and the lower needle plate manually, but due to the space between the upper needle plate and the lower needle plate is limited by the mechanism itself, the manual operation space is small, so that the board is difficult to place accurately, resulting in inaccurate positioning and causing the board to be damaged, which affects the safety and reliability of single board detection.

[0004] Therefore, we design a pneumatic single board test equipment which is convenient to take and place single board and has high test efficiency. SUMMARY

[0005] The utility model discloses a pneumatic single board test equipment, solves single board and takes difficultly, and the safety and reliability of single board detection are affected to reduce the problem of starting single board test efficiency.

[0006] In order to achieve this purpose, the utility model adopts the following technical scheme:

[0007] A kind of pneumatic single board test equipment, including shielding box assembly, upper template, horizontal template and lower counterweight plate are sequentially arranged in shielding box assembly along gravity direction;

[0008] The upper template is provided with test station, and is electrically connected with test assembly, for shielding test to single board on test station;

[0009] Horizontal template is provided with transition station that can pass through lower counterweight plate, can be active between first position and second position, and transition station is used to place single board, first position is located in shielding box assembly, and second position is located outside shielding box assembly;

[0010] Lower counterweight plate can be lifted along vertical direction, for moving single board on horizontal template in first position between transition station and test station.

[0011] Optionally, one side of the shielding box assembly is hingedly provided with a door plate assembly, the door plate assembly is provided with a cylinder sliding rail assembly, the cylinder sliding rail assembly comprises a cylinder and a sliding rail, the door plate assembly is fixedly connected with the sliding rail, the sliding rail is slidingly connected with the shielding box assembly through a sliding block, the horizontal template is fixedly connected with the sliding rail, and the cylinder drives the horizontal template to move between the first position and the second position.

[0012] Optionally, the door plate assembly is a floating structure.

[0013] Optionally, the shielding box assembly is further provided with a first push block and a second push block, the first push block and the second push block are both provided with a cam motion track, the cam motion track is provided with one high and one low, the end surface of the lower counterweight plate is matched with the cam motion track, so as to realize the lifting of the lower counterweight plate, and the lower end of the first push block and the second push block is slidingly provided with a sliding assembly.

[0014] Optionally, the other end of the shielding box assembly is provided with a side pushing cylinder, the side pushing cylinder is fixedly connected with the first push block and the second push block, so as to drive the sliding of the first push block and the second push block.

[0015] Optionally, the first push block and the second push block are provided with a limiting buffer assembly at one end close to the side pushing cylinder.

[0016] Optionally, the shielding box assembly further comprises a high-precision sliding rail assembly, the high-precision sliding rail assembly is provided with a cam bearing follower, the cam bearing follower can move along the cam motion track,

[0017] Optionally, the high-precision sliding rail assembly is fixedly connected with the lower counterweight plate, and the lower end surface of the lower counterweight plate is slidingly connected to the bottom of the shielding box assembly through a supporting column.

[0018] Optionally, the shielding box assembly is further provided with an electric control box assembly, the shielding box assembly is fixedly connected to the shielding box assembly through a mounting screw, the electric control box assembly comprises a single-chip microcomputer, a radio frequency head assembly, a product test switching module, a solenoid valve assembly and a pressure regulating valve assembly, the single-chip microcomputer is used for controlling the whole test process and processing data in single board testing, the radio frequency head assembly and the product test switching module are used for testing the shielding performance of a single board together, and the solenoid valve assembly and the pressure regulating valve assembly are used for controlling the pressure and flow of a pneumatic system, so as to ensure the accurate operation of the test equipment.

[0019] Optionally, the shielding box assembly is welded by sheet metal and is provided with sound insulation foam.

[0020] Compared with the prior art, the shielding box assembly has the following beneficial effects:

[0021] The pneumatic single board test equipment provided by the utility model can move the horizontal template from the first position to the second position, facilitates the staff to place the single board outside the shielding box assembly, then the horizontal template returns to the first position, the lower counterweight plate rises in the direction of approaching the upper template to lift the single board on the horizontal template in the first position to the test station from the transition station, facilitates subsequent shielding test on the single board on the test station, can adjust the test conditions such as air pressure and flow according to the test requirement, can adapt to the test requirement of single boards of different specifications and types, the single board is more convenient to take and place by adopting the above-mentioned pneumatic single board test equipment, realizes automatic feeding and discharging, reduces manual intervention, further improves the test efficiency and consistency, simultaneously improves the production efficiency and product quality. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor under the premise of not paying.

[0023] The structure, proportion, size and the like shown in the drawings of the present specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and are not used to limit the limiting conditions that can be implemented by the utility model, so they do not have technical substantive significance, any modification of structure, change of proportion relationship or adjustment of size, as long as it does not affect the effect and purpose that can be achieved by the present application, should still fall within the scope covered by the technical content disclosed by the present application.

[0024] Figure 1 It is the internal structure schematic view of the pneumatic single board test equipment in the utility model;

[0025] Figure 2 It is the internal structure schematic view of the shielding box assembly in the utility model;

[0026] Figure 3 It is the connection structure schematic view of the side push air cylinder and the first push block and the second push block in the utility model;

[0027] Figure 4 It is the connection structure schematic view of the door plate assembly and the air cylinder slide rail assembly in the utility model;

[0028] Figure 5 It is the plan view of the connection structure of the door plate assembly and the air cylinder slide rail assembly in the utility model;

[0029] Figure 6 It is the internal structure schematic view of the electric control box assembly in the utility model.

[0030] Fig. 10 illustrates a shielding box assembly; Fig. 11 illustrates an upper die plate; Fig. 111 illustrates a test station; Fig. 12 illustrates a horizontal die plate; Fig. 121 illustrates a transition station; Fig. 13 illustrates a lower counterweight plate; Fig. 131 illustrates a support column; Fig. 14 illustrates a door plate assembly; Fig. 15 illustrates a cylinder slide rail assembly; Fig. 151 illustrates a cylinder; Fig. 152 illustrates a slide rail; Fig. 16 illustrates a first push block; Fig. 17 illustrates a second push block; Fig. 161 illustrates a cam motion track; Fig. 162 illustrates a sliding assembly; Fig. 18 illustrates a side push cylinder; Fig. 181 illustrates a limit buffer assembly; Fig. 19 illustrates a high-precision slide rail assembly; Fig. 191 illustrates a cam bearing follower; Fig. 20 illustrates an electric control box assembly; Fig. 21 illustrates a single-chip microcomputer; Fig. 22 illustrates a radio frequency head assembly; Fig. 23 illustrates a product test switching module; Fig. 24 illustrates a solenoid valve assembly; and Fig. 25 illustrates a pressure regulating valve assembly. DETAILED DESCRIPTION

[0031] In order to make the application purpose, features and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the embodiments described below are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] In the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there can be a component disposed therebetween.

[0033] The technical solutions of the present application will be further described below with reference to the drawings and through specific embodiments.

[0034] The present application provides a kind of pneumatic single board test equipment.

[0035] As shown in Figures 1 to 6 , Figure 1 It is the internal structure schematic diagram of pneumatic single board test equipment in the present application; Figure 2 It is the internal structure schematic diagram of shielding box assembly in the present application; Figure 3 It is the connection structure schematic diagram of side push cylinder and first push block, second push block in the present application; Figure 4 It is the connection structure schematic diagram of door plate assembly and cylinder slide rail assembly in the present application; Figure 5The utility model discloses a door plate assembly and cylinder slide rail assembly connecting structure top view for the utility model. Figure 6 The utility model discloses an electric control box subassembly internal structure schematic diagram.

[0036] The starting single board test equipment provided by the embodiment makes the taking and placing of single boards more convenient, realizes automatic feeding and discharging, further improves test efficiency and consistency, and also improves production efficiency and product quality.

[0037] As Figures 1 to 2 The starting single board test equipment provided by the embodiment includes a shielding box assembly 10, the upper template 11, the horizontal template 12 and the lower counterweight plate 13 are sequentially arranged in the shielding box assembly 10 along the direction of gravity, the upper template 11 is provided with a test station 111 and is electrically connected with a test assembly, and is used for shielding test on the single board on the test station 111, the horizontal template 12 is provided with a transition station 121 that can pass through the lower counterweight plate 13, can move between a first position and a second position, and is used for placing a single board, the first position is located in the shielding box assembly 10, and the second position is located outside the shielding box assembly 10, and the lower counterweight plate 13 can be lifted along the vertical direction and is used for moving the single board on the horizontal template 12 at the first position between the transition station 121 and the test station 111.

[0038] Specifically, as Figures 1 to 2 The horizontal template 12 and the lower counterweight plate 13 can be moved under the action of a cylinder or a motor, when the horizontal template 12 is located at the second position, a worker can place a single board on the transition station 121, then moves the horizontal template 12 from the second position to the first position, at this time, the lower counterweight plate 13 is vertically lifted in the direction close to the upper template 11, lifts the single board on the transition station 121 at the first position from the transition station 121 to the test station 111 of the upper template 11, the test station 111 is electrically connected with the test assembly, so as to test the single board, after the test is completed, the lower counterweight plate 13 is vertically lowered in the direction away from the upper template 11, the single board is lowered from the test station 111 to the transition station 121 at the first position, then the horizontal template 12 is moved from the first position to the second position, and the worker can take away the single board, this design realizes automatic feeding and discharging, reduces manual intervention, and further improves test efficiency and consistency.

[0039] Therefore, in the present embodiment, when the horizontal template 12 is located at the second position, the worker can place the single board on the transition work station 121, and then move the horizontal template 12 from the second position to the first position, so that the lower counterweight plate 13 vertically rises along the direction close to the upper template 11, and the single board located on the transition work station 121 at the first position is lifted from the transition work station 121 to the test work station 111, so as to test the single board. When the horizontal template 12 is located at the second position, the worker can place the single board on the transition work station 121 or take away the single board that has completed the test, so as to realize automatic feeding and discharging, reduce manual intervention, and further improve the test efficiency and consistency.

[0040] Further, as shown in Figure 4 As shown in 5, the shielding box assembly 10 is movably provided with a door plate assembly 14 on one side, the door plate assembly 14 is fixedly connected with a cylinder slide rail assembly 15, the cylinder slide rail assembly 15 includes a cylinder 151 and a slide rail 152, the door plate assembly 14 is fixedly connected with the slide rail 152, the slide rail 152 is movably connected with the shielding box assembly 10 through a sliding block, the horizontal template 12 is fixedly connected with the slide rail 152, and the cylinder 151 drives the horizontal template 12 to move between the first position and the second position.

[0041] Specifically, as shown in Figure 4 As shown in 5, when feeding, the horizontal template 12 is moved from the second position to the first position under the pushing of the cylinder 151; when discharging, the cylinder 151 is reset, and the horizontal template 12 is moved from the first position to the second position, so as to ensure the accurate movement of the horizontal template 12 between different positions. When the cylinder 151 drives the horizontal template 12 to slide, the door plate assembly 14 synchronously slides, the fixed connection between the door plate assembly 14 and the cylinder slide rail assembly 15 enables the opening and closing of the door plate to be realized by the pushing of the cylinder 151, which improves the operation efficiency, reduces manual intervention, enhances the safety and reliability of the test process, and thus improves the overall test efficiency.

[0042] Further, as shown in Figure 4 The door plate assembly 14 is a floating structure.

[0043] Specifically, as shown in Figure 4 The door plate assembly 14 is a floating structure to avoid rigid contact between the door plate and the frame when the cylinder slide rail assembly 15 enters and exits, to avoid poor sealing or mechanical wear of the shielding box assembly 10 caused by these factors, and to enhance the safety of the test process.

[0044] Preferably, the floating structure includes that the door plate assembly 14 and the frame of the shielding box assembly 10 are connected through elastic members.

[0045] Further, as shown in Figure 3As shown, the shielding box assembly 10 is also provided with a first push block 16 and a second push block 17, the first push block 16 and the second push block 17 are both provided with a cam motion track 161, the cam motion track 161 is provided with one high and one low, the end face of the lower counterweight plate 13 is matched with the cam motion track 161, for realizing the lifting of the lower counterweight plate 13, the lower end of the first push block 16 and the second push block 17 is slidably installed with a sliding assembly 162.

[0046] Specifically, as shown in the figure, Figure 3 The first push block 16 and the second push block 17 can slide under the action of the air cylinder or the motor, thereby driving the lower counterweight plate 13 to cooperate with the cam motion track to realize the lifting of the lower counterweight plate 13, the lower end of the first push block 16 and the second push block 17 is slidably installed with a sliding assembly 162, realizing the smooth sliding of the first push block 16 and the second push block 17, the cam motion track 161 is designed as one high and one low, so that the lower counterweight plate 13 is lifted gently, improving the safety of the test.

[0047] Further, the other end of the shielding box assembly 10 is installed with a side push cylinder 18, the side push cylinder 18 is fixedly connected with the first push block 16 and the second push block 17, for driving the sliding of the first push block 16 and the second push block 17.

[0048] Specifically, as shown in the figure, Figure 3 The side push cylinder 18 generates a pushing force through the piston motion, drives the first push block 16 and the second push block 17 fixedly connected therewith to move along the preset direction, thereby driving the lower counterweight plate 13 to cooperate with the cam motion track 161 to realize the lifting of the lower counterweight plate 13, after the side push cylinder 18 resets, the first push block 16 and the second push block 17 move in the direction opposite to the preset direction, realizing the lowering of the lower counterweight 13, reducing friction and wear, improving the safety of the test.

[0049] Further, as shown in the figure, Figure 3 The end of the first push block 16 and the second push block 17 close to the side push cylinder 18 is fixedly provided with a limiting buffer assembly 181;

[0050] Specifically, the limiting buffer assembly 181 is used for absorbing the impact force when the first push block 16 and the second push block 17 move to the limit position, playing a role in reducing impact, avoiding damage to mechanical parts, while ensuring the stopping position of the first push block 16 and the second push block 17 is accurate, effectively improving the reliability and stability in the test process.

[0051] Further, as shown in the figure, Figure 2 The shielding box assembly 10 also includes a high-precision slide rail assembly 19, the high-precision slide rail assembly 19 is installed with a cam bearing follower 191, the cam bearing follower 191 can move along the cam motion track 161.

[0052] Specifically, as shown in Figure 2 When the first push block 16 and the second push block 17 move, the cam bearing follower 191 moves in the cam motion track 161 on the first push block 16 and the second push block 17, thereby driving the high-precision slide rail assembly 19 to gently rise, reducing friction and making single-board testing more stable and reliable.

[0053] Further, as shown in Figure 2 The high-precision slide rail assembly 19 is fixedly connected with the lower counterweight plate 13, and the lower end surface of the lower counterweight plate 13 is slidably connected to the bottom of the shielding box assembly 10 through the support column 131.

[0054] Specifically, the lower end surface of the lower counterweight plate 13 is slidably connected to the bottom of the shielding box assembly 10 through the support column 131, and the side surface of the high-precision slide rail assembly 19 is fixedly connected with the lower counterweight plate 13, so that the lower counterweight plate 13 rises gently with the high-precision slide rail assembly 19, thereby lifting the single board on the transition station 121 in the first position to the test station 111 for testing, reducing external environmental interference and enhancing the safety and reliability of the testing process.

[0055] Further, as shown in Figure 6 Further, the electric control box assembly 20 is fixed to the outside of the shielding box assembly 10 through mounting screws, and the electric control box assembly 20 includes a single-chip microcomputer 21, a radio frequency head assembly 22, a product test adapter module 23, an electromagnetic valve assembly 24, and a pressure regulating valve assembly 25. The single-chip microcomputer 21 is used to control the entire testing process and perform data processing in single-board testing. The radio frequency head assembly 22 and the product test adapter module 23 are used together to test the shielding performance of the single board. The electromagnetic valve assembly 24 and the pressure regulating valve assembly 25 are used to control the pressure and flow of the pneumatic system to ensure the accurate operation of the testing equipment.

[0056] Specifically, the single-chip microcomputer 21 in the electric control box assembly 20 simplifies the testing process through automatic control and data processing, reduces human error and time, and improves testing efficiency. The cooperative work of the radio frequency head assembly 22 and the product test adapter module 23 enables the testing signal to be quickly and accurately transmitted and detected, ensuring high efficiency of the testing. The electromagnetic valve assembly 24 and the pressure regulating valve assembly 25 accurately control the pressure and flow of the pneumatic system, ensuring that the testing equipment operates under optimal conditions, further improving the reliability and accuracy of the testing.

[0057] Further, the shielding box assembly 10 is made of sheet metal welding and is attached with soundproof foam.

[0058] Specifically, the shielding box assembly 10 is designed by sheet metal welding and soundproof foam, providing an efficient shielding and soundproof environment, achieving high-precision testing of the shielding performance of the single board, and effectively improving the accuracy and reliability of the testing.

[0059] For the convenience of those skilled in the art to understand, the overall working process of the pneumatic single board test equipment is explained as follows:

[0060] When the horizontal template 12 is in the second position, the worker can place the single board in the transition station 121, and then the horizontal template 12 is driven by the cylinder slide rail assembly 15 to move from the second position to the first position, that is, the single board is sent into the shielding box assembly 10, at this time, the side push cylinder 18 drives the first push block 16 and the second push block 17 to move along the preset direction, so that the counterweight plate is vertically lifted along the direction of approaching the upper template 11 along with the high-precision slide rail assembly 19, the single board on the horizontal template 12 in the first position is lifted from the transition station 121 to the test station 111 of the upper template 11, the test station 111 is electrically connected with the test assembly, so that the single board is tested, after the test is completed, the side push cylinder 18 is reset, the high-precision slide rail assembly 19 drives the lower counterweight plate 13 to vertically descend along the direction of away from the upper template 11, and the single board is lowered from the test station 111 to the transition station 121 in the first position, and then the horizontal template 12 moves from the first position to the second position, that is, the single board is sent out of the shielding box assembly 10, and then the single board is taken away by the worker, so that the automatic feeding and discharging is realized, and the test efficiency and consistency are further improved.

[0061] In summary, the single board test equipment in the utility model has the advantages of convenient single board taking and placing, accurate single board moving position, high test environment stability and high test efficiency.

[0062] The above-described embodiments are only used to illustrate the technical solutions of the utility model, rather than limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A pneumatic single board test apparatus, characterized by, The shielding box assembly (10) is sequentially provided with an upper mold plate (11), a horizontal mold plate (12) and a lower counterweight plate (13) in the direction of gravity; The upper mold plate (11) is provided with a test station (111) and is electrically connected with a test assembly, and is used for shielding test on a single board on the test station (111); The horizontal mold plate (12) is provided with a transition station (121) capable of passing through the lower counterweight plate (13), and is movable between a first position and a second position, the transition station (121) is used for placing a single board, and the first position is located in the shielding box assembly (10), and the second position is located outside the shielding box assembly (10); The lower counterweight plate (13) can be lifted in the vertical direction, and is used for moving the single board on the horizontal mold plate (12) in the first position between the transition station (121) and the test station (111).

2. A pneumatic single board test apparatus as recited in claim 1, wherein, A door plate assembly (14) is movably installed on one side of the shielding box assembly (10), the door plate assembly (14) is provided with a cylinder sliding rail assembly (15), the cylinder sliding rail assembly (15) comprises a cylinder (151) and a sliding rail (152), The door plate assembly (14) is fixedly connected with the sliding rail (152), the sliding rail (152) is slidably connected with the shielding box assembly (10) through a sliding block, the horizontal mold plate (12) is fixedly connected with the sliding rail (152), and the cylinder (151) drives the horizontal mold plate (12) to move between the first position and the second position.

3. A pneumatic single board test apparatus as recited in claim 2, wherein, The door plate assembly (14) is a floating structure.

4. The pneumatic single board test equipment of claim 1 wherein, The shielding box assembly (10) is further provided with a first push block (16) and a second push block (17), the first push block (16) and the second push block (17) are provided with cam motion tracks (161), the cam motion tracks (161) are provided with one high and one low, the lower counterweight plate (13) is matched with the cam motion tracks (161) to realize the lifting of the lower counterweight plate (13), and the lower ends of the first push block (16) and the second push block (17) are slidably provided with sliding assemblies (162).

5. A pneumatic single board test apparatus as recited in claim 4 wherein, The other end of the shielding box assembly (10) is provided with a side pushing cylinder (18), the side pushing cylinder (18) is fixedly connected with the first push block (16) and the second push block (17), and is used for driving the sliding of the first push block (16) and the second push block (17).

6. A pneumatic single board test apparatus as recited in claim 5, wherein, The first push block (16) and the second push block (17) are fixedly provided with a limiting buffer assembly (181) at one end close to the side pushing cylinder (18).

7. The pneumatic single board test equipment of claim 4 wherein, The shielding box assembly (10) further comprises a high-precision sliding rail assembly (19), the high-precision sliding rail assembly (19) is provided with a cam bearing follower (191), and the cam bearing follower (191) can move along the cam motion track (161).

8. A pneumatic single board test apparatus as recited in claim 7, wherein, The high-precision sliding rail assembly (19) is fixedly connected with the lower counterweight plate (13), and the lower end surface of the lower counterweight plate (13) is slidably connected to the bottom of the shielding box assembly (10) through a supporting column (131).

9. The pneumatic single board test equipment of claim 1 wherein, Also include electric control box assembly (20), the shielding box assembly (10) is fixed by mounting screw outside shielding box assembly (10); The electric control box assembly (20) includes a single-chip microcomputer (21), a radio frequency head assembly (22), a product test switching module (23), a solenoid valve assembly (24) and a pressure regulating valve assembly (25), the single-chip microcomputer (21) is used to control the whole test process, and data processing in single board test is carried out, the radio frequency head assembly (22) and the product test switching module (23) are used together to test the shielding performance of single board, the solenoid valve assembly (24) and the pressure regulating valve assembly (25) are used to control the pressure and flow of the pneumatic system, to ensure the accurate operation of the test equipment.

10. The pneumatic single board test equipment of claim 1 wherein, The shielding box assembly (10) is welded by sheet metal, and sound insulation bubble cotton is attached.

Images