Electromagnetic vibration table capable of adjusting amplitude

Abstract

The utility model relates to the technical field of vibration test equipment, in particular to an amplitude-adjustable electromagnetic vibration table, which comprises a base, a vibration table is arranged at the top of the base, a transverse support plate is arranged at the upper end in the base, and a plurality of guide columns movably inserted on the transverse support plate are uniformly arranged at the bottom of the vibration table. The outer portions of the guide columns are sleeved with spring supporting assemblies, the lower ends of the guide columns are integrally sleeved with a regulation and control plate, the top of the regulation and control plate is provided with a plurality of abutting blocks corresponding to the bottom ends of the spring supporting assemblies in a one-to-one mode, and the regulation and control plate and the abutting blocks jointly form a plurality of sets of pressure adjusting mechanisms of the spring supporting assemblies. A driving mechanism composed of an air cylinder, a linkage piece and a pressure sensor is arranged below the pressure adjusting mechanism. According to the electromagnetic vibration table capable of adjusting the amplitude, direct and accurate control of the amplitude is realized, the test stability and accuracy are improved, and the adaptability of equipment to different application scenes is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to vibration test equipment technical field, concretely is a kind of electromagnetic vibration table of adjustable amplitude. BACKGROUND

[0002] In modern industrial production and scientific research experiment, electromagnetic vibration table as an important test tool is widely used in simulating vibration conditions under different environments to test the stability and durability of product or material under the influence of vibration. This kind of equipment assesses and ensures the quality and reliability of various electronic components, mechanical components and finished products by generating controlled vibration. Its application range covers aerospace, automobile manufacturing, electronic products and other key industries.

[0003] The existing electromagnetic vibration table usually relies on changing input current or frequency to adjust vibration intensity when realizing amplitude adjustment, but this way cannot directly and accurately control amplitude size, especially when high-precision experiment is needed, this indirect control method is easy to cause amplitude instability, affect the accuracy of test results, at the same time, the action range of spring assembly in vibration table structure design is fixed, it is difficult to flexibly adjust according to actual needs, which limits the adaptability of vibration table to different application scenarios. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of electromagnetic vibration table of adjustable amplitude to solve the problem that current electromagnetic vibration table is difficult to directly and accurately control amplitude size, leading to amplitude instability when high-precision experiment, affect the accuracy of test results.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a kind of electromagnetic vibration table of adjustable amplitude, including base, the top of the base is equipped with vibration table, the upper end inside the base is equipped with horizontal support plate, the bottom of the vibration table is uniformly equipped with several guide columns that are movably inserted in horizontal support plate, the outside of the guide column is all equipped with spring support assembly, and the lower end of the guide column is integrally equipped with control board, the top of the control board is equipped with several pressure blocks corresponding to the bottom end position of spring support assembly one by one, the control board and pressure block jointly constitute the pressure adjusting mechanism of several groups of spring support assembly, and the lower of the pressure adjusting mechanism is equipped with the drive mechanism consisting of air cylinder, linkage and pressure sensor.

[0006] Preferably, the spring support assembly includes elastic sleeve, the inside of the elastic sleeve is equipped with support spring that is sleeved on the outside of guide column, the upper and lower ends of the elastic sleeve are all equipped with end block, the end block is also movably sleeved on the outside of guide column.

[0007] Preferably, the top of the transverse support plate is uniformly provided with a plurality of shock pads, and the shock pads are located at the gaps between the guide columns, and the top of the shock pad is in close contact with the bottom of the vibration table.

[0008] Preferably, the control plate is uniformly provided with a plurality of perforations matched with the guide column structure, and the abutting blocks are fixed on the top of the perforations of the control plate.

[0009] Preferably, the two sides of the control plate are provided with protrusions, and the inner walls of the two sides of the base are provided with guide seats matched with the protrusions at the two ends of the control plate.

[0010] Preferably, the cylinder is fixed inside the base below the control plate through a support, the linkage is fixed at the output end of the cylinder and is in a U-shaped structure, and the pressure sensor is fixed in the middle of the control plate and is connected with the cylinder through a wire.

[0011] Compared with the prior art, the adjustable amplitude electromagnetic vibration table directly and accurately controls the amplitude, improves the stability and accuracy of the test, and enhances the adaptability of the equipment to different application scenarios. The adjustable amplitude electromagnetic vibration table can automatically and stably adjust the position of the control plate in the pressure adjusting mechanism through the design of the cylinder and the linkage in the driving mechanism, and then change the compression degree of the spring support assembly through the abutting blocks on the top of the control plate, so as to ensure the flexibility and precision of amplitude adjustment, make the pressure adjustment more accurate and stable, and further improve the accuracy of amplitude control. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a schematic structural view of the adjustable amplitude electromagnetic vibration table of the utility model;

[0013] Figure 2 It is a top view structural schematic view of the pressure adjusting mechanism of the adjustable amplitude electromagnetic vibration table of the utility model;

[0014] Figure 3 It is a schematic structural view of the guide column of the adjustable amplitude electromagnetic vibration table of the utility model;

[0015] Figure 4 It is a top view structural schematic view of the transverse support plate of the adjustable amplitude electromagnetic vibration table of the utility model.

[0016] In the drawing: 1, base; 2, vibration table; 3, transverse support plate; 4, guide column; 5, shock pad; 6, spring support assembly; 61, elastic sleeve; 62, support spring; 63, end block; 7, pressure adjusting mechanism; 71, control plate; 72, abutting block; 8, driving mechanism; 81, cylinder; 82, linkage; 83, pressure sensor; 9, guide seat. DETAILED DESCRIPTION

[0017] 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 described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0018] Please refer to Figures 1-4The utility model provides a technical scheme: a kind of amplitude-adjustable electromagnetic vibration table, including base 1, the top of base 1 is equipped with vibration table 2, the upper end in base 1 is equipped with horizontal support plate 3, the both ends of horizontal support plate 3 are evenly with the inside wall of both sides of base 1 Welding fixed connection mode is used, the bottom of vibration table 2 is evenly welded with several movable and inserted in the guide column 4 of horizontal support plate 3, guide column 4 is all vertically distributed, the outside of guide column 4 is all equipped with spring support subassembly 6, and the top of spring support subassembly 6 is fixedly connected with the bottom of horizontal support plate 3, and the lower end of guide column 4 is integrally equipped with control board 71, the top of control board 71 is equipped with several corresponding with the bottom of spring support subassembly 6 Resistance block 72, control board 71 and resistance block 72 jointly constitute the pressure adjusting mechanism 7 of several spring support subassembly 6, and the below of pressure adjusting mechanism 7 is equipped with the drive mechanism 8 by cylinder 81, linkage 82 and pressure sensor 83, when the cylinder 81 of this structure drive mechanism 8 drives, control board 71 of pressure adjusting mechanism 7 can be driven to move up and down by linkage 82, resistance block 72 on the top of control board 71 exerts different pressure on spring support subassembly 6 bottom, that is, when control board 71 moves, resistance block 72 changes the compression degree of spring support subassembly 6, and then influence the activity range and degree of freedom of guide column 4 on horizontal support plate 3, finally realize the accurate control of vibration table 2 amplitude, and pressure sensor 83 monitors and feeds back the pressure value suffered by control board 71 to control system in real time, to ensure the precision and stability in amplitude adjustment process, this structure design allows electromagnetic vibration table to flexibly adjust amplitude according to actual demand, not only improves the ability of equipment to adapt to different application scenarios, but also guarantees the stability and reliability under long time operation, and through automatic control system, the efficiency and product quality in experiment or production process can be further improved, solves the problem that traditional vibration table amplitude is fixed or inaccurate, spring support subassembly 6 includes elastic sleeve 61, the inside of elastic sleeve 61 is equipped with the spring 62 of sleeve in the outside of guide column 4, the both ends of elastic sleeve 61 are equipped with end block 63, and end block 63 is also movably sleeved in the outside of guide column 4, the end block 63 of elastic sleeve 61 top end is connected with the bottom of horizontal support plate 3, and this structure can adopt screw fixed connection mode, when control board 71 exerts pressure on spring support subassembly 6 through resistance block 72, elastic sleeve 61 and spring 62 are compressed or stretched, change its elastic state, end block 63 ensures that spring 62 can move smoothly along guide column 4 without deviation when stressed, maintains the stable operation of vibration table 2, the end block 63 of elastic sleeve 61 top end and horizontal support plate 3 fixed connection not only provides a stable support point, but also allows to easily adjust or replace spring support subassembly 6 when needed, the top of horizontal support plate 3 is evenly bonded with several shock pads 5, and shock pad 5 is located at the gap between guide column 4, and the top of shock pad 5 and the bottom of vibration table 2 are in contact, when vibration table 2 works and produces vibration,The damping pad 5 can effectively absorb and buffer the vibration energy from the vibration table 2, prevent the vibration from being directly transmitted to the base 1 and other components, reduce unnecessary vibration interference, and the damping pad 5 can also provide additional support and stability when the vibration table 2 is in high-frequency vibration, ensuring the stable operation of the vibration table 2 under different amplitudes. The control plate 71 is uniformly provided with a plurality of perforations matched with the structure of the guide column 4, and the abutting block 72 is welded and fixed on the top of the perforation of the control plate 71. The structure inside the abutting block 72 is matched with the structure of the end block 63. When the control plate 71 moves up and down, the abutting block 72 accurately acts on the end block 63, changing the compression degree of the spring support assembly 6, which makes the pressure adjustment more accurate and stable, ensuring the accuracy of the amplitude adjustment of the vibration table 2. The two sides of the control plate 71 are provided with protrusions, and the inner walls of the two sides of the base 1 are welded and fixed with guide seats 9 matched with the structure of the protrusions at both ends of the control plate 71. When the cylinder 81 drives the control plate 71 to move up and down through the linkage 82, the protrusions of the control plate 71 can slide along the guide seats 9, ensuring the straightness and stability of the control plate 71 during movement, effectively preventing the control plate 71 from tilting or deviating when stressed, ensuring the uniformity and accuracy of the pressure exerted by the abutting block 72 on the spring support assembly 6. The cylinder 81 is fixed in the base 1 below the control plate 71 through the bracket, and the linkage 82 is fixed at the output end of the cylinder 81 and has a U-shaped structure. The bottom end of the linkage 82 is fixedly connected with the connection part of the control plate 71. The model of the pressure sensor 83 is HDA4840-A-060-424 of HYDAC. The pressure sensor 83 is fixed in the middle of the control plate 71 and connected with the cylinder 81 through wires. When the cylinder 81 acts, its output end directly transmits the push-pull force to the control plate 71 through the linkage 82, ensuring efficient force transmission and accurate movement of the control plate 71. The pressure sensor 83 can monitor and feedback the pressure value of the control plate 71 in real time, so that the control system can adjust the working state of the cylinder 81 according to the actual demand, ensuring the accuracy and stability of the amplitude adjustment.

[0019] Working principle: when using the adjustable amplitude electromagnetic vibration table, first, the equipment enters the normal operation state, at this time, the vibration table 2 vibrates according to the preset parameters, the shock pad 5 is closely attached to the bottom of the vibration table 2, absorbs and buffers the energy from the vibration table 2 in the vibration process, ensures the stable operation of the system, and the guide column 4 appears a certain amplitude of activity on the cross support plate 3, and the spring support assembly 6 provides the necessary support and elastic restoring force, so that the vibration table 2 can vibrate smoothly within the set range, when the amplitude needs to be regulated, the cylinder 81 of the driving mechanism 8 is started, the cylinder 81 drives the regulating plate 71 to move up and down through the linkage 82, with the movement of the regulating plate 71, the pressing block 72 exerts different pressure on the spring support assembly 6, the elastic sleeve 61 and the internal spring 62 in the spring support assembly 6 compress or stretch according to the force condition, change the spring force state of the spring support assembly 6, thereby affecting the activity range and degree of freedom of the guide column 4 on the cross support plate 3, finally realizing the change of the amplitude of the vibration table 2, in the whole process, the pressure sensor 83 monitors and feeds back the pressure value of the regulating plate 71 to the control system in real time, the control system adjusts the working state of the cylinder 81 according to these data, to ensure the accuracy and stability of the amplitude regulation, so as to complete a series of work.

[0020] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. An electromagnetic vibration table with adjustable amplitude, comprising a base (1), the top of which is provided with a vibration table (2), characterized in that: The upper end inside the base (1) is provided with a horizontal support plate (3), the bottom of the vibration table (2) is uniformly provided with a plurality of guide columns (4) movably penetrating the horizontal support plate (3), the outside of the guide column (4) is sleeved with a spring support assembly (6), the lower end of the guide column (4) is integrally sleeved with a regulating plate (71), the top of the regulating plate (71) is provided with a plurality of abutting blocks (72) corresponding to the bottom end positions of the spring support assemblies (6), the regulating plate (71) and the abutting blocks (72) jointly constitute a pressure adjusting mechanism (7) of a plurality of spring support assemblies (6), and the lower portion of the pressure adjusting mechanism (7) is provided with a driving mechanism (8) composed of a gas cylinder (81), a linkage (82) and a pressure sensor (83).

2. The electromagnetic vibration table of claim 1, wherein: The spring support assembly (6) comprises an elastic sleeve (61), the inside of the elastic sleeve (61) is provided with a supporting spring (62) sleeved outside the guide column (4), the upper and lower ends of the elastic sleeve (61) are provided with end blocks (63), and the end blocks (63) are movably sleeved outside the guide column (4).

3. The electromagnetic vibration table of claim 1, wherein: The top of the horizontal support plate (3) is uniformly provided with a plurality of shock pads (5), the shock pads (5) are located at the gaps between the guide columns (4), and the top of the shock pads (5) is attached to the bottom of the vibration table (2).

4. The adjustable amplitude electromagnetic shaker table of claim 1, wherein: The regulating plate (71) is uniformly provided with a plurality of perforations matching the structure of the guide column (4), and the abutting blocks (72) are fixed on the lips of the top perforations of the regulating plate (71).

5. The adjustable amplitude electromagnetic vibration table of claim 1, wherein: The regulating plate (71) is provided with a protruding portion on both sides, and the inner walls of the base (1) on both sides are provided with guide seats (9) matching the structure of the protruding portions on both ends of the regulating plate (71).

6. The adjustable amplitude electromagnetic shaker table of claim 1, wherein: The gas cylinder (81) is fixed inside the base (1) below the regulating plate (71) through a support, the linkage (82) is fixed on the output end of the gas cylinder (81) and has a U-shaped structure, and the pressure sensor (83) is fixed in the middle of the regulating plate (71) and connected to the gas cylinder (81) through wires.

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