Air electromagnetic valve stroke coining tool

Abstract

The utility model belongs to the technical field of air electromagnetic valves, particularly relates to a stroke coining tool for an air electromagnetic valve, and aims to solve the problem that the requirement of stroke adjustment of the electromagnetic valve cannot be met in the background technology. The stroke coining tool comprises a coil fixing seat, and the inner wall of the bottom of the coil fixing seat is fixedly connected with an upper pressure head sealing cover through a bolt; a coil, a coil pad and a pressing head are installed in the coil fixing base, and the outer wall of one side of the upper pressing head sealing cover is fixedly connected with a positioning base. The press-fitting stroke can be monitored in real time and the press-fitting depth can be adjusted according to the pre-press-fitting state of each assembly, so that the stroke value of the air suspension solenoid valve after the stroke coining is stabilized in a small interval range, the product stability is improved, the press-fitting position is changed from a traditional lower valve seat structure to a top static iron core, and the press-fitting efficiency is improved. According to the tool, stroke press-fitting of the air suspension solenoid valve can be achieved, stroke precision control within a certain range can be achieved, and the performance stability of a product is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of air solenoid valves, in particular to a fine pressing tooling for the stroke of an air solenoid valve. 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, and the purposes are as follows:

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

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

[0005] (3) 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] Due to the characteristics of the external shape structure of the air suspension solenoid valve, the pressing form of the conventional fine pressing tooling cannot meet the requirements of the stroke adjustment of the solenoid valve, resulting in difficult control of the stroke pressing of the air suspension solenoid valve assembly. The stroke out-of-tolerance will affect the response time of the product and even cause the product to fail seriously. Content of the Utility Model

[0007] Aiming at the deficiencies of the prior art, the utility model provides a fine pressing tooling for the stroke of an air solenoid valve, overcomes the deficiencies of the prior art, and effectively solves the problem that the requirements of the stroke adjustment of the solenoid valve cannot be met.

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

[0009] A fine pressing tooling for the stroke of an air solenoid valve includes a coil fixing seat. The inner wall of the bottom of the coil fixing seat is fixedly connected with an upper pressing head cover through bolts. A coil, a coil gasket and a pressing head are respectively installed inside the coil fixing seat. A positioning seat is fixedly connected to the outer wall of one side of the upper pressing head cover, and a guiding sliding sleeve is fixedly connected to the outer wall of one side of the positioning seat through bolts. The outer wall of the guiding sliding sleeve is fixedly connected with a lower pressing head cover through bolts, and a fine pressing seat is fixedly connected to the outer wall of one side of the lower pressing head cover through bolts.

[0010] Preferably, the coil is arranged inside the coil gasket, and the pressing head is arranged inside the coil.

[0011] Preferably, a return spring is arranged inside the lower pressing head cover and the fine pressing seat.

[0012] Preferably, a fine pressing measuring needle is arranged through the lower pressing head cover and the fine pressing seat.

[0013] Preferably, a first mounting hole is provided between the coil fixing seat and the upper pressing head cover, a second mounting hole is provided between the lower pressing head cover and the fine pressing seat, and a third mounting hole is provided on the outer wall of one side of the coil fixing seat.

[0014] Preferably, a pressing head connection cavity is arranged inside the coil fixing seat, a probe connection cavity is arranged inside the fine pressing seat, and a spring cavity is arranged between the lower pressing head cover and the fine pressing seat.

[0015] Preferably, a first end is arranged at the center of the outer wall of one side of the coil fixing seat, and a second end is arranged at the center of the outer wall of one side of the fine pressing seat.

[0016] Preferably, the fine pressing probe is connected to an external displacement sensor through the fine pressing seat.

[0017] The beneficial effects of the present utility model are as follows:

[0018] 1. For the air solenoid valve stroke fine pressing tooling of this design, after adopting this tooling, when the actual fine pressing equipment performs stroke fine pressing on the product, it can monitor the pressing stroke in real time and adjust the pressing depth according to the state of each component before pressing, so that the stroke value after the air suspension solenoid valve stroke fine pressing is stable within a small range, improving the product stability;

[0019] 2. For the air solenoid valve stroke fine pressing tooling of this design, a displacement sensor is installed in the tooling to cooperate with the pressure sensor to judge the state before the fine pressing of the air suspension solenoid valve and at the same time realize the control of the pressing stroke. The pressing position is changed from the traditional lower valve seat structure to the top static iron core, so as to realize the precise pressing of the component stroke. This tooling can realize the stroke pressing of the air suspension solenoid valve and can realize the stroke precision control within a certain range, ensuring the performance stability of the product. Description of the Drawings

[0020] Figure 1 It is a sectional view of the overall structure of an air solenoid valve stroke fine pressing tooling proposed by the present utility model;

[0021] Figure 2 It is a three-dimensional schematic diagram of the overall structure of an air solenoid valve stroke fine pressing tooling proposed by the present utility model;

[0022] Figure 3 It is a top view of the overall structure of an air solenoid valve stroke fine pressing tooling proposed by the present utility model;

[0023] Figure 4 It is a partially enlarged schematic diagram of the structure of an air solenoid valve stroke fine pressing tooling proposed by the present utility model.

[0024] In the figure: 1. Coil fixing seat; 2. Pressing head; 3. Coil pad; 4. Coil; 5. Upper pressing head cover; 6. Positioning seat; 7. Guide sliding sleeve; 8. Precision pressing probe; 9. Lower pressing head cover; 10. Return spring; 11. Precision pressing seat; 12. First mounting hole; 13. Second mounting hole; 14. Pressing head connection cavity; 15. Probe connection cavity; 16. Spring cavity; 17. First end; 18. Second end; 19. Third mounting hole. Specific implementation mode

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

[0026] Embodiment 1, referring to Figure 1 , an air solenoid valve stroke precision pressing tooling, including a coil fixing seat 1. The inner wall of the bottom of the coil fixing seat 1 is fixedly connected with an upper pressing head cover 5 through bolts. The coil fixing seat 1 is internally provided with a coil 4, a coil pad 3, and a pressing head 2 respectively. One side outer wall of the upper pressing head cover 5 is fixedly connected with a positioning seat 6, and one side outer wall of the positioning seat 6 is fixedly connected with a guide sliding sleeve 7 through bolts.

[0027] In this embodiment, after using this tooling, when the actual precision pressing equipment presses the product for stroke precision pressing, the pressing stroke can be monitored in real time and the pressing depth can be adjusted according to the state of each component before pressing, so that the stroke value of the air suspension solenoid valve is stabilized within a small range after precision pressing, improving the product stability.

[0028] Embodiment 2, referring to Figure 1 , an air solenoid valve stroke precision pressing tooling, the outer wall of the guide sliding sleeve 7 is fixedly connected with a lower pressing head cover 9 through bolts, and one side outer wall of the lower pressing head cover 9 is fixedly connected with a precision pressing seat 11 through bolts.

[0029] In this embodiment, a displacement sensor and a pressure sensor are installed in the tooling to judge the state before precision pressing of the air suspension solenoid valve and at the same time control the pressing stroke. The pressing position is changed from the traditional lower valve seat structure to the top static iron core, so as to realize the precision pressing of the component stroke. This tooling can realize the stroke pressing of the air suspension solenoid valve and can realize the stroke precision control within a certain range, ensuring the performance stability of the product.

[0030] Referring to Figure 1 , the coil 4 is arranged inside the coil pad 3, and the pressing head 2 is arranged inside the coil 4.

[0031] Referring to Figure 1 , a return spring 10 is arranged inside the lower pressing head cover 9 and the precision pressing seat 11.

[0032] Reference Figure 1 There is a fine pressing probe 8 penetratingly arranged between the lower pressing head cover 9 and the fine pressing seat 11.

[0033] Reference Figures 2 to 4 There is a first mounting hole 12 opened between the coil fixing seat 1 and the upper pressing head cover 5, and a second mounting hole 13 is opened between the lower pressing head cover 9 and the fine pressing seat 11. A third mounting hole 19 is opened on the outer wall of one side of the coil fixing seat 1.

[0034] Reference Figures 1 to 4 There is a pressing head connection cavity 14 inside the coil fixing seat 1, and a probe connection cavity 15 is arranged inside the fine pressing seat 11. A spring cavity 16 is arranged between the lower pressing head cover 9 and the fine pressing seat 11.

[0035] Reference Figures 1 to 3 A first end 17 is arranged at the center of the outer wall of one side of the coil fixing seat 1, and a second end 18 is arranged at the center of the outer wall of one side of the fine pressing seat 11.

[0036] Reference Figure 1 The fine pressing probe 8 is connected to an external displacement sensor through the fine pressing seat 11

[0037] Working principle: When the air suspension solenoid valve performs press-fitting, the workpiece to be press-fitted is assembled in the lower tooling positioning seat 6. The upper tooling part of the tooling is pressed down by the cylinder. The lower tooling fine pressing probe 8 will enter the air nozzle of the air suspension solenoid valve and abut against the moving iron core assembly in the air suspension solenoid valve structure. At this time, the electromagnet is energized and then de-energized once. The pre-precision pressing stroke value L1 is measured through the displacement sensor. The system will calculate the required press-fitting depth L2 (=L - L1) according to the set required stroke value L. Subsequently, the upper tooling is further pressed down by the electric cylinder, and the solenoid valve assembly stroke is precisely pressed to the specified depth through the pressing head 2 in the upper tooling. During the press-fitting process, the press-fitting force can be monitored in real time through the pressure sensor arranged below the tooling main body to ensure that the press-fitting force is within the preset range;

[0038] When the equipment system detects that the press-fitting is completed, the electromagnet is energized and then de-energized once again. The post-precision pressing stroke value L3 is measured through the displacement sensor below the fine pressing seat 11, and the system automatically determines whether L3 meets the stroke requirements.

[0039] The above is only the preferred specific embodiment 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 should be covered within the protection scope of the present invention.

Claims

1. A stroke precision pressing tool for an air solenoid valve, comprising a coil fixing seat (1), characterized in that: The inner wall at the bottom of the coil fixing seat (1) is fixedly connected to an upper pressure head cover (5) by bolts, and the coil fixing seat (1) is respectively installed with a coil (4), a coil pad (3) and a pressure head (2); the outer wall on one side of the upper pressure head cover (5) is fixedly connected to a positioning seat (6), and the outer wall on one side of the positioning seat (6) is fixedly connected to a guide sleeve (7) by bolts; the outer wall of the guide sleeve (7) is fixedly connected to a lower pressure head cover (9) by bolts, and the outer wall on one side of the lower pressure head cover (9) is fixedly connected to a precision pressing seat (11) by bolts.

2. The air solenoid valve stroke precision pressing tooling according to claim 1, characterized in that: The coil (4) is arranged inside the coil pad (3), and the pressure head (2) is arranged inside the coil (4).

3. The air solenoid valve stroke precision pressing tooling according to claim 1, characterized in that: A return spring (10) is arranged inside the lower pressing head cover (9) and the precision pressing seat (11).

4. The air solenoid valve stroke precision pressing tooling according to claim 1, characterized in that: A precision pressing measuring needle (8) is provided between the lower pressing head cover (9) and the precision pressing seat (11).

5. The air solenoid valve stroke precision pressing tooling according to claim 1, characterized in that: A first mounting hole (12) is provided between the coil fixing seat (1) and the upper pressing head cover (5), a second mounting hole (13) is provided between the lower pressing head cover (9) and the precision pressing seat (11), and a third mounting hole (19) is provided on the outer wall of one side of the coil fixing seat (1).

6. The air solenoid valve stroke precision pressing tooling according to claim 1, characterized in that: The coil fixing seat (1) is provided with a pressure head connection cavity (14) inside, and the precision pressing seat (11) is provided with a measuring needle connection cavity (15) inside, and a spring cavity (16) is provided between the lower pressure head cover (9) and the precision pressing seat (11).

7. The air solenoid valve stroke precision pressing tooling according to claim 1, characterized in that: A first end (17) is provided at the center of the outer wall of one side of the coil fixing seat (1), and a second end (18) is provided at the center of the outer wall of one side of the coining seat (11).

8. The air solenoid valve stroke precision pressing tooling according to claim 4, characterized in that: The precision pressing measuring needle (8) is connected to an external displacement sensor via a precision pressing seat (11).

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