Airtightness detection tool for air solenoid valve assembly

Abstract

The utility model discloses an air solenoid valve assembly airtightness detection tool comprising an upper pressure head fixing seat, a coil heat dissipation seat is fixed on the outer wall of the bottom of the upper pressure head fixing seat through bolts, an upper pressure head sealing cover is arranged below the coil heat dissipation seat, a cavity is arranged in the coil heat dissipation seat, a coil pad is arranged in the cavity, and the upper pressure head sealing cover is connected with the coil heat dissipation seat. A coil is arranged at the bottom of the coil pad, a clamping groove is formed in the axis position of the upper pressing head sealing cover, a sealing flange is arranged in the clamping groove in a clamped mode, a workpiece body is arranged on the sealing flange, an air nozzle is connected to the bottom of the workpiece body, a positioning seat is fixed to the lower portion of the upper pressing head sealing cover, and an inserting groove is formed in the axis position of the positioning seat. According to the utility model, after the tool body is assembled, the air inlet valve at the bottom is utilized to continuously inflate air, and the flowmeter arranged on the side surface is combined, so that the reading of the flowmeter can be detected to measure the leakage amount of the electromagnetic valve assembly, and the air tightness detection of the air electromagnetic valve assembly can be quickly completed.

Description

Technical Field

[0001] The utility model relates to the technical field of detection tooling, in particular to an air solenoid valve assembly airtight detection tooling. Background Art

[0002] In the field of production and manufacturing of automotive hydraulic braking systems, advanced tooling fixtures are adopted in the assembly production link both at home and abroad for the following purposes:

[0003] (1) To improve the machining accuracy of products. Advanced tooling can more accurately position the relative position of the workpiece and the tooling, improving process stability.

[0004] (2) To improve production efficiency. Advanced tooling can enable production equipment to quickly obtain detection results and speed up the production line rhythm.

[0005] (3) To improve the production qualification rate. Advanced tooling can ensure the accuracy of detection data and process stability, making the production qualification rate of the production line higher.

[0006] However, due to the characteristics of the external structure of the air suspension solenoid valve, the conventional normally closed valve assembly airtight tooling cannot meet the sealing requirements of the key parts of the air suspension solenoid valve, resulting in the inability to conduct sealing performance tests. Summary of the Utility Model

[0007] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to propose an air solenoid valve assembly airtight detection tooling.

[0008] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0009] An air solenoid valve assembly airtight detection tooling, including an upper pressure head fixing seat. The bottom outer wall of the upper pressure head fixing seat is fixed with a coil heat dissipation seat through bolts, and an upper pressure head cover is arranged below the coil heat dissipation seat. A cavity is opened inside the coil heat dissipation seat, and a coil gasket is arranged inside the cavity. A coil is arranged at the bottom of the coil gasket, and a card slot is opened at the axis of the upper pressure head cover. A sealing flange is clamped and arranged inside the card slot, and a workpiece body is arranged on the sealing flange. A gas nozzle is connected to the bottom of the workpiece body, and a positioning seat is fixed below the upper pressure head cover. A plug slot is opened at the axis of the positioning seat, and a flange sealing gasket is installed at the top axis of the positioning seat.

[0010] As a further scheme of the utility model: Symmetrically distributed fixing slots are opened on the top outer wall of the upper pressure head fixing seat, and cylinders are connected inside the fixing slots.

[0011] As a further solution of the present utility model: a lower fixing seat is inserted into the inner wall of the plugging slot, and an air nozzle gasket is arranged on the top of the lower fixing seat, and the air nozzle gasket is adapted to the size of the air nozzle.

[0012] As a further solution of the present utility model: a side air hole passage is opened on the side surface of the lower fixing seat, and a flow meter is connected to the inner wall of the side air hole passage, and the side air hole passage is communicated with the plugging slot.

[0013] As a further solution of the present utility model: an air charging pipeline is opened at the center of the bottom of the lower fixing seat, and an air inlet valve is connected to the outer wall of the bottom of the lower fixing seat.

[0014] As a further solution of the present utility model: heat dissipation fins are welded on the outer wall of the coil heat dissipation seat at equal intervals in a circumferential manner, and heat dissipation grooves are opened on the outer wall of the heat dissipation fins.

[0015] As a further solution of the present utility model: the axes of the coil, the air nozzle, the flange gasket and the air charging pipeline are all located on the same straight line.

[0016] Compared with the prior art, the present utility model provides an air solenoid valve assembly airtightness detection tooling, which has the following beneficial effects:

[0017] 1. For the air solenoid valve assembly airtightness detection tooling of this design, through the telescopic extrusion of the telescopic cylinder, the detection tooling can be quickly driven for assembly processing, and then the tooling body to be detected can be assembled, plugged and fixed. The operation is simple and convenient.

[0018] 2. For the air solenoid valve assembly airtightness detection tooling of this design, after the tooling body is assembled, only need to continuously inflate by using the air inlet valve at the bottom and combine with the flow meter arranged on the side, and then the leakage amount of the solenoid valve assembly can be measured by detecting the reading of the flow meter, so that the airtightness detection of the air solenoid valve assembly can be quickly completed.

[0019] The parts not involved in this device are the same as the prior art or can be realized by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 FIG. is the overall structural schematic diagram of an air solenoid valve assembly airtightness detection tooling proposed by the present utility model;

[0021] Figure 2 FIG. is the overall structural sectional view of an air solenoid valve assembly airtightness detection tooling proposed by the present utility model;

[0022] Figure 3 FIG. is the partial structural enlarged schematic diagram of an air solenoid valve assembly airtightness detection tooling proposed by the present utility model;

[0023] Figure 4 This is a partial structural schematic diagram of an air solenoid valve assembly airtight detection tooling proposed by the present utility model.

[0024] In the figure: 1. Upper pressure head fixing seat; 2. Fixed groove; 3. Coil heat dissipation seat; 4. Upper pressure head cover; 5. Cavity; 6. Coil gasket; 7. Coil; 8. Card slot; 9. Sealing flange; 10. Workpiece body; 11. Air nozzle; 12. Positioning seat; 13. Insertion slot; 14. Flange sealing gasket; 15. Air nozzle sealing gasket; 16. Side air hole path; 17. Flow meter; 18. Lower fixing seat; 19. Inflation pipeline; 20. Intake valve. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0026] Embodiment 1:

[0027] An air solenoid valve assembly airtight detection tooling. Based on the existing air solenoid valve airtightness detection problems in this embodiment, in order to achieve rapid and accurate detection problems, as Figures 1-4 shown, it includes an upper pressure head fixing seat 1. The bottom outer wall of the upper pressure head fixing seat 1 is fixed with a coil heat dissipation seat 3 by bolts, and a upper pressure head cover 4 is arranged below the coil heat dissipation seat 3. A cavity 5 is opened inside the coil heat dissipation seat 3, and a coil gasket 6 is arranged inside the cavity 5. A coil 7 is arranged at the bottom of the coil gasket 6, and a card slot 8 is opened at the axis center of the upper pressure head cover 4. A sealing flange 9 is clamped and arranged inside the card slot 8, and a workpiece body 10 is arranged on the sealing flange 9. The bottom of the workpiece body 10 is connected with an air nozzle 11, and a positioning seat 12 is fixed below the upper pressure head cover 4. An insertion slot 13 is opened at the axis center of the positioning seat 12, and a flange sealing gasket 14 is installed at the axis center of the top of the positioning seat 12;

[0028] Through the telescopic extrusion of the telescopic cylinder, the detection tooling can be quickly driven for assembly processing, and then the tooling body to be detected can be assembled, inserted and fixed. The operation is simple and convenient.

[0029] Symmetrically distributed fixed grooves 2 are opened on the top outer wall of the upper pressure head fixing seat 1, and a telescopic cylinder is connected inside the fixed grooves 2. A lower fixing seat 18 is inserted into the inner wall of the insertion slot 13, and an air nozzle sealing gasket 15 is arranged on the top of the lower fixing seat 18. The air nozzle sealing gasket 15 is adapted to the size of the air nozzle 11;

[0030] A side air hole passage 16 is formed in the side surface of the lower fixing base 18, and a flow meter 17 is connected to the inner wall of the side air hole passage 16. The side air hole passage 16 communicates with the insertion slot 13.

[0031] An air charging pipe passage 19 is formed at the center of the bottom of the lower fixing base 18, and an air inlet valve 20 is connected to the outer wall of the bottom of the lower fixing base 18.

[0032] After the tooling body is assembled, only need to continuously inflate by using the air inlet valve 20 at the bottom and combine with the flow meter 17 arranged on the side, then the leakage amount of the solenoid valve assembly can be measured by detecting the reading of the flow meter 17, so that the airtightness detection of the air solenoid valve assembly can be quickly completed.

[0033] When in use of this embodiment, when the air suspension solenoid valve is tested, the workpiece body 10 to be press-fitted is assembled in the lower tooling positioning seat 12. The upper tooling part of the tooling is pressed down driven by the telescopic cylinder so that the sealing flange 9 of the air suspension solenoid valve abuts against the sealing flange 9 installed in the tooling positioning seat 12. At the same time, the tooling makes the air nozzle 11 of the air suspension solenoid valve abut against the air nozzle gasket 15 installed in the lower fixing base 18 of the tooling. After forming a seal, the air inlet valve 20 at the bottom air path of the tooling is opened, and the system starts to intake air. The leakage amount of the solenoid valve assembly is measured by the reading of the flow meter 17 connected to the side air hole passage 16 of the positioning seat 12.

[0034] Embodiment 2:

[0035] An airtightness detection tooling for an air solenoid valve assembly, as Figures 1-4 shown. The following supplements are made on the basis of Embodiment 1 in this embodiment: The outer wall of the coil heat dissipation seat 3 is circumferentially welded with heat dissipation fins distributed at equal intervals, and heat dissipation grooves are formed on the outer wall of the heat dissipation fins. The axes of the coil 7, the air nozzle 11, the flange gasket 14, and the air charging pipe passage 19 are all located on the same straight line.

[0036] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. An air tightness detection tool for an air solenoid valve assembly, comprising an upper pressure head fixing seat (1), characterized in that: The bottom outer wall of the upper pressure head fixing seat (1) is fixed with a coil heat sink seat (3) by bolts, and an upper pressure head cover (4) is arranged below the coil heat sink seat (3), a cavity (5) is opened inside the coil heat sink seat (3), and a coil pad (6) is arranged inside the cavity (5), a coil (7) is arranged at the bottom of the coil pad (6), and a slot (8) is opened at the axis of the upper pressure head cover (4), a sealing flange (9) is clamped inside the slot (8), and a workpiece body (10) is arranged on the sealing flange (9), the bottom of the workpiece body (10) is connected with an air nozzle (11), and a positioning seat (12) is fixed below the upper pressure head cover (4), a plug-in slot (13) is opened at the axis of the positioning seat (12), and a flange sealing gasket (14) is installed at the top axis of the positioning seat (12).

2. The air tightness detection tool for air solenoid valve assembly according to claim 1 is characterized in that: The top outer wall of the upper pressure head fixing seat (1) is provided with symmetrically distributed fixing grooves (2), and the interior of the fixing grooves (2) is connected to a telescopic cylinder.

3. The air tightness detection tool for air solenoid valve assembly according to claim 1 is characterized in that: A lower fixing seat (18) is inserted into the inner wall of the insertion groove (13), and a gas nozzle sealing pad (15) is provided on the top of the lower fixing seat (18), wherein the gas nozzle sealing pad (15) is adapted to the size of the gas nozzle (11).

4. The air tightness detection tool for air solenoid valve assembly according to claim 3 is characterized in that: A side air hole path (16) is opened on the side of the lower fixing seat (18), and a flow meter (17) is connected to the inner wall of the side air hole path (16), and the side air hole path (16) is communicated with the plug-in slot (13).

5. The air tightness detection tool for air solenoid valve assembly according to claim 4 is characterized in that: An air charging pipeline (19) is opened at the bottom axis of the lower fixing seat (18), and an air intake valve (20) is connected to the bottom outer wall of the lower fixing seat (18).

6. The air tightness detection tool for air solenoid valve assembly according to claim 1 is characterized in that: The outer wall of the coil heat sink (3) is circumferentially welded with heat sink fins distributed at equal distances, and the outer wall of the heat sink fins is provided with heat sink grooves.

7. The air tightness detection tool for air solenoid valve assembly according to claim 5 is characterized in that: The axes of the coil (7), the air nozzle (11), the flange sealing gasket (14) and the inflation pipeline (19) are all located on the same straight line.

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