Press machine for detecting air tightness of air spring

Abstract

The utility model relates to an air spring air tightness detection press machine which comprises a base, four corners of the top of the base are fixedly connected with guide slide bars, a lifting plate capable of moving up and down is connected among the four guide slide bars, four corners of the lifting plate are respectively connected with the four guide slide bars in a sliding mode, and lifting rods are inserted on the lifting plate at equal intervals. The air spring lifting device has the following advantages that the air spring lifting device is provided with the lifting plate which is driven by the threaded rod and can move up and down, the air spring is squeezed in the limiting groove through the squeezing block at the bottom of the lifting plate, and the air spring can be lifted up and down through the limiting groove. The air pressure in the air bag is increased, after the air bag is broken, internal air is exhausted, the pressure of the air bag is reduced, after the pressure of the air bag is reduced, the spring pushes the extrusion block to descend, and the airtight effect of the air bag can be visually observed by observing the moving distance of the lifting rod.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to an air spring air tightness detection press machine. Background Art

[0002] An air spring is a spring that fills air into a retractable, sealed container and uses the elasticity of air. It is also called a damper or airbag and is widely used in shock absorption in automobiles and various equipment.

[0003] In the production process of air springs, in order to avoid failure of the air spring due to air leakage during use, it is necessary to detect the sealing effect of the airbag. In the prior art, traditional air spring detection mostly uses practical extrusion to observe the deflation effect of the airbag. However, for some smaller cracks, the air is discharged slowly and it is difficult to effectively observe it by short-term extrusion. Therefore, an air spring air tightness detection press is proposed. Utility Model Content

[0004] The utility model aims to solve the above technical problems and provides an air spring air tightness detection press.

[0005] The technical solution adopted by the utility model to solve the technical problem is: an air spring air tightness detection press, comprising a base, the top four corners of the base are fixedly connected with guide slide bars, a lifting plate that can move up and down is connected between the four guide slide bars, the four corners of the lifting plate are respectively slidably connected to the four guide slide bars, the lifting plate is equidistantly plugged with lifting rods, the bottom of the lifting rod is fixedly connected with an extrusion block, and a limit groove is chiseled on the top of the base relative to the position of the extrusion block.

[0006] As a preferred technical solution of the utility model, a top plate is fixedly connected between the tops of the four guide slide rods, a servo motor is fixedly connected to the middle of the top of the top plate, the output end of the servo motor is fixedly connected to a threaded rod through the top plate, the threaded rod is threadedly connected to the lifting plate, and the threaded rod passes through the lifting plate and is rotatably connected to the base.

[0007] As a preferred technical solution of the utility model, the lifting rod is plugged into the lifting plate, the lifting rod is located between the lifting plate and the extrusion block and is sleeved with a spring, and the two ends of the spring are respectively fixedly connected to the lifting plate and the extrusion block.

[0008] As a preferred technical solution of the utility model, a rod wall of the lifting rod located above the lifting plate is provided with scales.

[0009] As a preferred technical solution of the utility model, the bottom of the limiting groove and the bottom of the extrusion block are both provided with a conical groove.

[0010] The utility model has the following advantages: the device is provided with a lifting plate which is driven by a threaded rod and can move up and down. The air spring is squeezed in the limiting groove by the squeezing block at the bottom of the lifting plate, so that the air pressure in the airbag increases. When the airbag ruptures, the internal air is discharged and the airbag pressure is reduced. When the airbag pressure is reduced, the spring pushes the squeezing block down. By observing the moving distance of the lifting rod, the airtight effect of the airbag can be observed more intuitively. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional structural schematic diagram of a preferred embodiment of the utility model;

[0012] Figure 2 It is a schematic diagram of the connection structure of the extrusion block of a preferred embodiment of the utility model.

[0013] Explanation of the reference numerals in the accompanying drawings: 1. base; 2. guide slide rod; 3. top plate; 4. lifting plate; 5. servo motor; 6. threaded rod; 7. lifting rod; 8. extrusion block; 9. spring; 10. limit groove. DETAILED DESCRIPTION

[0014] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0015] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0016] The utility model will be further described below in conjunction with the accompanying drawings.

[0017] Please refer to Figure 1-2The utility model is an air spring air tightness detection press, comprising a base 1, the top four corners of the base 1 are fixedly connected with guide slide bars 2, a lifting plate 4 that can move up and down is connected between the four guide slide bars 2, the four corners of the lifting plate 4 are respectively slidably connected with the four guide slide bars 2, lifting rods 7 are equidistantly inserted on the lifting plate 4, the bottom of the lifting rod 7 is fixedly connected with an extrusion block 8, and a limiting groove 10 is chiseled at the top of the base 1 relative to the extrusion block 8.

[0018] A top plate 3 is fixedly connected between the tops of the four guide slide bars 2, and a servo motor 5 is fixedly connected to the middle part of the top of the top plate 3. The output end of the servo motor 5 passes through the top plate 3 and is fixedly connected with a threaded rod 6, which is threadedly connected to the lifting plate 4. The threaded rod 6 passes through the lifting plate 4 and is rotatably connected to the base 1. As the servo motor 5 drives the threaded rod 6 at the bottom to rotate, the lifting plate 4 slides downward on the guide slide bar 2, driving the extrusion block 8 to move downward and squeeze on the air spring. The lifting rod 7 is plugged into the lifting plate 4, and the lifting rod 7 is provided with a spring 9 between the lifting plate 4 and the extrusion block 8. The two ends of the spring 9 are respectively fixedly connected to the lifting plate 4 and the extrusion block 8. The rod wall of the lifting rod 7 above the lifting plate 4 is provided with a scale. By observing the moving distance of the lifting rod 7, the airtight effect of the air spring can be intuitively understood. The bottom of the limiting groove 10 and the bottom of the extrusion block 8 are both provided with conical grooves. The conical grooves facilitate the limiting of air springs of different models to prevent the air spring from shifting sideways when being squeezed.

[0019] Specifically, when the utility model is used, the air spring to be tested is inserted into each limit groove 10 on the top of the base 1, and the servo motor 5 on the top of the top plate 3 is turned on. As the servo motor 5 drives the threaded rod 6 at the bottom to rotate, the lifting plate 4 slides downward on the guide slide bar 2, driving the extrusion block 8 to move downward and squeeze on the air spring. As the lifting plate 4 continues to move, the spring 9 and the air spring are squeezed and contracted. After stopping the servo motor 5, the air spring that does not leak will not continue to deform due to the unchanged air pressure. As the air inside the air spring with poor air tightness leaks air, the air pressure inside the air spring gradually becomes less than the thrust of the spring 9. The spring 9 pushes the extrusion block 8 to push the air spring downward. By observing the moving distance of the lifting rod 7, the air tightness effect of the air spring can be intuitively understood.

[0020] The above are only preferred implementations of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

[0021] Other parts of the present invention not described in detail belong to the prior art and will not be described in detail here.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. An air spring air tightness testing press, characterized in that: The utility model comprises a base (1), wherein the top four corners of the base (1) are fixedly connected with guide slide bars (2), a lifting plate (4) capable of moving up and down is connected between the four guide slide bars (2), the four corners of the lifting plate (4) are respectively slidably connected with the four guide slide bars (2), lifting rods (7) are equidistantly inserted on the lifting plate (4), the bottom of the lifting rods (7) is fixedly connected with an extrusion block (8), and a limiting groove (10) is chiseled at the top of the base (1) relative to the position of the extrusion block (8).

2. The air spring air tightness testing press as claimed in claim 1, characterized in that: A top plate (3) is fixedly connected between the tops of the four guide slide bars (2); a servo motor (5) is fixedly connected to the middle of the top of the top plate (3); an output end of the servo motor (5) passes through the top plate (3) and is fixedly connected to a threaded rod (6); the threaded rod (6) is threadedly connected to the lifting plate (4); and the threaded rod (6) passes through the lifting plate (4) and is rotatably connected to the base (1).

3. The air spring air tightness testing press as claimed in claim 1, characterized in that: The lifting rod (7) is plugged into the lifting plate (4); the lifting rod (7) is located between the lifting plate (4) and the extrusion block (8) and is sleeved with a spring (9); the two ends of the spring (9) are respectively fixedly connected to the lifting plate (4) and the extrusion block (8).

4. The air spring air tightness testing press as claimed in claim 1, characterized in that: The lifting rod (7) is provided with scales on a rod wall located above the lifting plate (4).

5. The air spring air tightness testing press machine according to claim 1, characterized in that: The bottom of the limiting groove (10) and the bottom of the extrusion block (8) are both provided with a conical groove.

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