A two-axis motion simulation test bench with high-precision eccentricity adjustment function

Abstract

The present invention discloses a two-axis motion simulation test bench with a high-precision eccentric adjustment function, which relates to the technical field of simulation tests and comprises: a vertical driving member, which has a vertical driving end; a rotating driving member, which is fixed to the vertical driving end, and the rotating driving member has a rotating driving end; a chassis, which is fixed to the rotating driving end; a bearing plate, a bottom of which is fixed with a plurality of supporting components evenly distributed in a circumference, the supporting components are also connected to the chassis, and strain gauges are embedded in the positions of the chassis corresponding to the supporting components; four eccentric adjustment components distributed in a cross shape, the eccentric adjustment components are arranged on the bearing plate, the overall motion stability is high, and the two-axis motion can be simulated more accurately.

Description

Technical Field

[0001] The invention relates to the technical field of simulation test, in particular to a two-axis motion simulation test bench with a high-precision eccentricity adjustment function. Background Art

[0002] Looking at the two-axis motion simulation test benches currently available on the market, it is not difficult to find that some products have a shortcoming - the lack of eccentricity adjustment function. This defect directly leads to the difficulty in maintaining the ideal standardized state of the motion trajectory of the sample to be tested in some test links, which in turn has a significant impact on the accuracy and reliability of the test data.

[0003] More importantly, after the eccentricity adjustment is successfully implemented, it is also very important to ensure that the adjustment state is stable. This is not only related to the consistency and repeatability of the test process, but also the cornerstone of ensuring high quality and high credibility of the data.

[0004] Therefore, it is necessary to provide a two-axis motion simulation test bench with a high-precision eccentricity adjustment function to solve the above problems. Summary of the invention

[0005] In order to solve the above problems, the present invention provides the following technical solutions: a two-axis motion simulation test bench with high-precision eccentricity adjustment function, comprising:

[0006] A vertical drive member having a vertical drive end;

[0007] A rotary drive member, which is fixed to the vertical drive end, and the rotary drive member has a rotary drive end;

[0008] a chassis fixed to the rotating drive end;

[0009] A carrier plate, a plurality of support components evenly distributed in a circumference are fixed at the bottom thereof, the support components are also connected to the chassis, and strain gauges are also embedded in the chassis at positions corresponding to the support components;

[0010] Four eccentric adjustment components distributed in a cross shape, the eccentric adjustment components are arranged on the carrying plate, and the eccentric adjustment components include:

[0011] A substrate is fixed on the carrier plate, and a slide seat is slidably arranged on the substrate, wherein the sliding direction of the slide seat is the same as one radial direction of the carrier plate;

[0012] An eccentric adjustment seat is fixed on the slide seat, and a tightening seat is slidably provided on the eccentric adjustment seat, and the sliding direction of the tightening seat is perpendicular to the sliding direction of the slide seat;

[0013] A threaded barrel is fixed on the base plate, and a screw is threadedly connected in the threaded barrel.

[0014] Preferably, an elastic pressure stabilizing component is further provided between the tightening seat and the eccentric adjusting seat.

[0015] Preferably, the elastic voltage stabilizing component comprises:

[0016] A first plate body, which is fixed on the tightening seat;

[0017] A second plate body, which is fixed on the eccentric adjustment seat;

[0018] A multi-layered elastic pad is arranged between the first plate body and the second plate body.

[0019] Preferably, magnetic blocks are embedded in both the first plate body and the second plate body, the magnetism of the magnetic blocks is adjustable, and the elasticity between the first plate body and the second plate body is always maintained within a fixed value range by adjusting the magnetism of the magnetic blocks.

[0020] Preferably, the support assembly comprises:

[0021] An outer cylinder, which is fixed below the carrying plate;

[0022] A sliding rod, which is fixed above the chassis and is slidably connected to the outer cylinder;

[0023] A spring is arranged between the outer cylinder and the slide rod.

[0024] Preferably, a turntable is rotatably provided on one side of the slide bar, and a groove is provided on the turntable, and the groove extends and distributes along one radial direction of the turntable;

[0025] A rotating shaft is rotatably arranged on the side of the outer cylinder, one end of the rotating shaft extends into the interior of the outer cylinder and is integrally formed with a clamping plate, and the clamping plate is slidably connected to the groove body.

[0026] Preferably, there is rotational damping between the rotating shaft and the outer cylinder.

[0027] Preferably, the outside of the rotating driving member is also provided with a tube cover extending along the movement direction of the vertical driving member, the tube cover is evenly provided with through holes, and the outside of the tube cover is provided with a plurality of flexible paper tapes evenly distributed in a circle and a visual sensor for identifying the state of the flexible paper tapes.

[0028] Compared with the prior art, the present invention provides a two-axis motion simulation test bench with a high-precision eccentricity adjustment function, which has the following beneficial effects:

[0029] The present invention realizes the eccentricity adjustment of the workpiece to be tested on the carrying plate by adjusting four eccentricity adjustment components distributed in a cross shape.

[0030] The present invention can keep the elasticity between the first plate body and the second plate body within a fixed value range by adjusting the magnetism of the magnetic block, thereby ensuring that the test piece can maintain the stability of movement after the eccentric adjustment component is adjusted.

[0031] After the eccentric adjustment assembly is adjusted, the present invention keeps the groove body in a horizontal state by twisting the rotating shaft. At this time, the slide bar is locked and cannot move relative to the outer cylinder, thereby preventing the test piece from accidentally changing its posture during movement and affecting subsequent test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the main structure of a two-axis motion simulation test bench with a high-precision eccentricity adjustment function;

[0033] Figure 2 It is a structural schematic diagram of an eccentric adjustment component in a two-axis motion simulation test bench with a high-precision eccentric adjustment function;

[0034] Figure 3 It is a structural schematic diagram of an elastic voltage stabilizing component in a two-axis motion simulation test bench with a high-precision eccentric adjustment function;

[0035] Figure 4 It is a structural schematic diagram of a support assembly in a two-axis motion simulation test bench with a high-precision eccentricity adjustment function;

[0036] Figure 5 It is a structural schematic diagram of a slide bar in a two-axis motion simulation test bench with a high-precision eccentric adjustment function;

[0037] In the figure: 1, vertical drive member; 2, rotary drive member; 3, chassis; 4, support assembly; 5, strain gauge; 6, carrier plate; 7, eccentric adjustment assembly; 8, test piece; 9, cylinder cover; 10, flexible paper tape; 11, visual sensor; 41, outer cylinder; 42, slide rod; 43, spring; 44, turntable; 45, trough body; 46, rotating shaft; 71, base plate; 72, slide seat; 73, eccentric adjustment seat; 74, tightening seat; 75, elastic voltage stabilizing assembly; 76, threaded cylinder; 77, screw; 751, first plate body; 752, second plate body; 753, elastic pad; 754, magnetic block. DETAILED DESCRIPTION

[0038] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned description of the drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, which is merely a way of distinguishing the objects of the same attributes when describing them in the embodiments of the present application. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, so that the process, method, system, product or equipment comprising a series of units need not be limited to those units, but may include other units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0039] Please refer to Figure 1-Figure 5 In an embodiment of the present invention, a two-axis motion simulation test bench with a high-precision eccentricity adjustment function is provided, comprising:

[0040] A vertical driving member 1 having a vertical driving end;

[0041] A rotary driving member 2, which is fixed to the vertical driving end, and the rotary driving member 2 has a rotary driving end;

[0042] A chassis 3, which is fixed to the rotating drive end;

[0043] A carrier plate 6, a plurality of support components 4 evenly distributed in a circumference are fixed at the bottom thereof, the support components 4 are also connected to the chassis 3, and a strain gauge 5 is also embedded at a position of the chassis 3 corresponding to the support components 4;

[0044] Four eccentric adjustment components 7 distributed in a cross shape, the eccentric adjustment components 7 are arranged on the carrier plate 6, and the eccentric adjustment components 7 include:

[0045] A base plate 71 is fixed on the carrier plate 6, and a slide seat 72 is slidably disposed on the base plate 71, wherein the sliding direction of the slide seat 72 is the same as one radial direction of the carrier plate 6;

[0046] An eccentric adjustment seat 73 is fixed on the slide seat 72, and a tightening seat 74 is slidably provided on the eccentric adjustment seat 73, and the sliding direction of the tightening seat 74 is perpendicular to the sliding direction of the slide seat 72;

[0047] The threaded barrel 76 is fixed on the base plate 71 , and a screw rod 77 is threadedly connected in the threaded barrel 76 .

[0048] Wherein, the vertical driving member 1 is any one or more of a cylinder, a hydraulic cylinder, an electric telescopic rod, and a screw-nut pair mechanism;

[0049] Wherein, the rotating driving member 2 is any one or more of a rotating cylinder, a servo motor, and a reduction motor;

[0050] During implementation, by rotating the screw 77 in the threaded barrel 76, the eccentric adjustment seat 73 and the tightening seat 74 can be pushed to move, thereby adjusting the eccentric distance and angle. During the adjustment process, the strain gauge 5 will monitor the stress changes of the chassis 3 in real time to ensure the accuracy of the adjustment process. After the eccentric adjustment is completed, the vertical drive member 1 and the rotary drive member 2 are started to make the carrier plate 6 move according to the preset trajectory. During the movement process, the dynamic data of the test piece 8 is collected through sensors and other equipment for subsequent testing and calibration.

[0051] In this embodiment, an elastic voltage stabilizing component 75 is further provided between the tightening seat 74 and the eccentric adjusting seat 73. The elastic voltage stabilizing component 75 can provide a pre-tightening force for the test piece 8, and the overall flexibility is high.

[0052] Specifically, the elastic voltage stabilizing component 75 includes:

[0053] A first plate 751, which is fixed on the tightening seat 74;

[0054] A second plate 752, which is fixed on the eccentric adjustment seat 73;

[0055] The multi-layered elastic pad 753 is disposed between the first plate 751 and the second plate 752 .

[0056] Among them, through the compression deformation of the multi-layer elastic pad 753, a stable and adjustable pre-tightening force can be provided for the test piece 8, thereby ensuring close contact between the test piece 8 and the eccentric adjustment component 7 during the test process and reducing errors.

[0057] Furthermore, a magnetic block 754 is embedded in both the first plate body 751 and the second plate body 752, and the magnetism of the magnetic block 754 is adjustable. By adjusting the magnetism of the magnetic block 754, the elasticity between the first plate body 751 and the second plate body 752 is always maintained within a fixed value range. It should be explained that by adjusting the magnetism of the magnetic block 754, the elasticity between the first plate body 751 and the second plate body 752 can be always maintained within a fixed value range, thereby ensuring that during the rotation process (after the eccentric adjustment component 7 is adjusted), the different elasticities between the first plate body 751 and the second plate body 752 will not cause displacement changes in the test piece 8, thereby ensuring the stability of the movement.

[0058] Furthermore, when the carrier plate 6 of the test bench starts to rotate under the drive of the rotating drive member 2, the test piece 8 placed thereon will be subjected to the centrifugal force. Centrifugal force is a virtual force that is not generated by the interaction between objects, but is an inertial effect exhibited when an object moves in a non-inertial reference system (such as a rotating reference system). During the rotation process, the test piece 8 will try to stay in its original position due to inertia, while the rotation of the carrier plate will cause it to be subjected to an outward force, namely, the centrifugal force, and the test piece 8 is likely to be displaced due to the uneven force.

[0059] Therefore, in order to ensure the stability of the test piece 8 and the accuracy of the test during the test, it is necessary to ensure that the elastic pressure between the first plate body 751 and the second plate body 752 is maintained within a constant range.

[0060] The introduction of the magnetic blocks 754 is to achieve this goal. These magnetic blocks embedded in the first plate 751 and the second plate 752 have adjustable magnetism. By adjusting the magnetic strength of the magnetic blocks 754, the electromagnetic attraction between them can be changed. This attraction and the mechanical elastic force provided by the elastic pad 753 act together between the first plate 751 and the second plate 752 to form a dynamic balance.

[0061] In this embodiment, the support assembly 4 includes:

[0062] An outer cylinder 41, which is fixed below the carrying plate 6;

[0063] A sliding rod 42, which is fixed above the bottom plate 3 and is slidably connected to the outer cylinder 41;

[0064] The spring 43 is disposed between the outer tube 41 and the slide rod 42 .

[0065] When the eccentric adjustment assembly 7 adjusts the position of the test piece 8, the weight above the carrier plate 6 is transferred to the slide bar 42 through the outer cylinder 41 and the spring 43, and the slide bar 42 continues to transfer the gravity to the strain gauge 5, thereby realizing eccentricity monitoring.

[0066] After the eccentric adjustment component 7 is adjusted, the state of the support component 4 should be maintained so that it does not expand or contract, so as to prevent the support component 4 from changing unexpectedly during the movement of the test piece 8 and affecting subsequent test results.

[0067] To this end, in this embodiment, a rotating disk 44 is rotatably provided on one side of the slide bar 42, and a groove 45 is provided on the rotating disk 44, and the groove 45 extends and distributes along one radial direction of the rotating disk 44;

[0068] A rotating shaft 46 is rotatably provided on the side of the outer cylinder 41 . One end of the rotating shaft 46 extends into the interior of the outer cylinder 41 and is integrally formed with a clamping plate. The clamping plate is slidably connected to the groove body 45 .

[0069] Then, during implementation, before the eccentric adjustment component 7 adjusts the position of the test piece 8, the slot body 45 is kept in a vertical state by turning the rotating shaft 46. At this time, the movement of the slide bar 42 is not restricted by the rotating shaft 46. After the eccentric adjustment component 7 completes the adjustment, the slot body 45 is kept in a horizontal state by turning the rotating shaft 46. At this time, the slide bar 42 is locked and cannot move relative to the outer cylinder 41, thereby preventing the test piece 8 from accidentally changing its posture during movement and affecting subsequent test results.

[0070] Furthermore, there is rotation damping between the rotating shaft 46 and the outer cylinder 41 .

[0071] In this embodiment, the outside of the rotating driving member 2 is also provided with a tube cover 9 extending along the movement direction of the vertical driving member 1, and the tube cover 9 is evenly provided with through holes. The outside of the tube cover 9 is provided with a plurality of flexible paper tapes 10 evenly distributed in a circumference and a visual sensor 11 for identifying the state of the flexible paper tape 10.

[0072] These flexible paper tapes 10 are sensitive to wind. When the test piece 8 generates wind during rotation or vertical movement, the flexible paper tapes 10 will be slightly blown, causing deformation or displacement.

[0073] At this time, the visual sensor 11 is used to identify the state of the flexible paper tape 10. Through high-precision image acquisition and processing technology, the visual sensor 11 can monitor the deformation, displacement and other changes of the flexible paper tape in real time, and convert this information into digital signals for subsequent analysis. Specifically, the states of multiple flexible paper tapes 10 can be compared to determine whether the test piece 8 is qualified.

[0074] For example, the test piece 8 is a badminton. In the prior art, when testing the badminton, air is often blown from bottom to top through a hair dryer, and the badminton is placed at the air outlet. At this time, the badminton will rotate under the blowing of the wind, and then the rotation state of the badminton is manually judged. This method is often used in the production stage, and in more precise subsequent tests, the present embodiment can achieve more precise detection by driving the badminton to rotate and monitoring the wind generated by the rotation.

[0075] When the test piece 8 (such as a badminton) moves vertically and rotates under the joint action of the vertical drive member 1 and the rotation drive member 2, wind bodies are generated, which blow the flexible paper tape 10 on the outside of the tube cover 9, causing it to undergo slight deformation or displacement.

[0076] The visual sensor 11 senses the state changes of the flexible paper tape 10 in real time, and by comparing the state differences of multiple flexible paper tapes 10, it can determine whether the wind distribution of the test piece 8 during rotation and vertical movement is uniform, and then determine whether the test piece 8 is qualified.

[0077] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A two-axis motion simulation test bench with high-precision eccentricity adjustment function, characterized in that: include: A vertical drive member having a vertical drive end; A rotary drive member, which is fixed to the vertical drive end, and the rotary drive member has a rotary drive end; a chassis fixed to the rotating drive end; The carrier plate has a plurality of support components evenly distributed in a circumference fixed at the bottom thereof, the support components are also connected to the chassis, and strain gauges are also embedded in the chassis at positions corresponding to the support components; Four eccentric adjustment components are arranged in a cross shape, and the eccentric adjustment components are arranged on the carrier plate, and the eccentric adjustment components include: A substrate is fixed on the carrier plate, and a slide seat is slidably arranged on the substrate, and the sliding direction of the slide seat is the same as one of the radial directions of the carrier plate; An eccentric adjustment seat is fixed on the sliding seat, and a tightening seat is slidably provided on the eccentric adjustment seat, and the sliding direction of the tightening seat is perpendicular to the sliding direction of the sliding seat; A threaded barrel is fixed on the base plate, and a screw is threadedly connected in the threaded barrel; The support components include: An outer cylinder, which is fixed below the carrying plate; A slide rod, which is fixed on the upper part of the chassis and is slidably connected with the outer cylinder; a spring, which is disposed between the outer cylinder and the slide rod; A turntable is rotatably arranged on one side of the slide bar, and a groove is provided on the turntable, and the groove extends and distributes along one radial direction of the turntable; A rotating shaft is rotatably arranged on the side of the outer cylinder, one end of the rotating shaft extends into the interior of the outer cylinder and is integrally formed with a clamping plate, which is slidably connected to the groove body; There is rotational damping between the rotating shaft and the outer cylinder; The outside of the rotary drive member is also provided with a tube cover extending along the vertical direction of movement of the drive member, the tube cover is evenly provided with through holes, and the outside of the tube cover is provided with a plurality of flexible paper tapes evenly distributed in a circle and a visual sensor for identifying the state of the flexible paper tapes.

2. The two-axis motion simulation test bench with high-precision eccentricity adjustment function according to claim 1 is characterized in that: An elastic pressure stabilizing component is also arranged between the tightening seat and the eccentric adjusting seat.

3. The two-axis motion simulation test bench with high-precision eccentricity adjustment function according to claim 2 is characterized in that: The elastic voltage stabilizing components include: A first plate body, which is fixed on the tightening seat; A second plate body, which is fixed on the eccentric adjustment seat; The multi-layered elastic pad is arranged between the first plate body and the second plate body.

4. The two-axis motion simulation test bench with high-precision eccentricity adjustment function according to claim 3 is characterized in that: Magnetic blocks are embedded in both the first plate body and the second plate body. The magnetism of the magnetic blocks is adjustable, and the elasticity between the first plate body and the second plate body is always maintained within a fixed value range by adjusting the magnetism of the magnetic blocks.

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