Damping vibration reduction performance test platform and test method thereof
By designing a movable damping and vibration damping performance test platform, the forward and reverse installation detection of the rolling linear guide rail pair and the static dynamic damping performance detection are realized, which solves the problem of low detection accuracy and inability to meet the forward and reverse installation detection in the prior art. Improves detection accuracy and application range.
Patent Information
- Application Number
- CN202110326969.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-03-26
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2041-03-26
AI Technical Summary
The existing rolling linear guide rail sub-damping performance detection method cannot meet the simultaneous detection of forward and reverse installation, the detection position is fixed, and accurate detection cannot be carried out during dynamic processes, resulting in low detection accuracy.
Design a damping and vibration damping performance test platform, including a base, detection platform and vibration excitation assembly, to realize formal and reverse inspection of rolling linear guide rail pairs through a movable workbench and vibration exciter, and perform static and dynamic situations. Damping performance detection, the exciter moves in the vertical direction to expand the test range.
It improves the accuracy and application range of the damping performance detection of rolling linear guide rails, can be detected in static and dynamic situations, meets the detection needs of front and back installations, and expands the test range.
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Figure CN112964441B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of mechanical manufacturing, and in particular to a damping and vibration reduction performance testing platform and a testing method thereof. Background Art
[0002] my country's high-end and high-equipment manufacturing industry is still facing the embarrassing situation of heavy reliance on imports for key equipment and parts, poor static and dynamic characteristics of domestic high-end CNC machine tools, and core technologies of basic components being controlled by people, which has always restricted the long-term and healthy development of my country's high-end CNC machine tools. At present, my country's existing rolling functional component products, especially rolling linear guide pairs, are still facing serious production capacity shortages, low grades, poor reliability, and weak technological innovation capabilities. Imported products are still in a dominant position, becoming one of the bottlenecks restricting the upgrading of my country's equipment manufacturing industry, and a breakthrough is urgently needed. The precision slide transmission device composed of rolling linear guide pairs is a key transmission component of high-end CNC machine tools, with the characteristics of high rigidity, high load, high speed, and high-precision positioning. However, because the joint between the slider rolling body and the guide rail is point or line contact, the only disadvantage compared with the traditional sliding guide surface contact is poor vibration resistance, which will directly lead to poor dynamic characteristics of CNC machine tools. The contact stiffness of the slider-guide joint is usually a weak link in the stiffness of the whole machine, thus becoming a major factor affecting the accuracy of the whole machine. At the same time, the contact damping characteristics of the slider-guide joint are poor, which seriously restricts the dynamic characteristics of the whole machine. Therefore, the static and dynamic performance of the guide system will greatly affect the performance of the high-end CNC machine tool. How to solve the "poor vibration resistance of precision rolling linear guide pairs and even the whole machine" will be a common problem of high-end CNC machine tools.
[0003] At present, most of the tests on the "damping characteristics of rolling linear guide pairs" in the market adopt a fixed method, that is, the guide rails in the rolling linear guide pairs are fixedly set, and the vibration exciter is used to hit the fixed position of the workbench for detection. It can only test the vibration of the workbench when it is stationary, but not the vibration of the workbench when it is in motion. However, in actual applications, the rolling linear guide pairs are usually in a dynamic process, so the results obtained by this method are not accurate enough; the vibration exciter is fixed on the gantry, and can only realize the excitation of the fixed point, but cannot adjust the position of the excitation point; the installation scheme of the rolling linear guide pair can only be installed in the normal state, but not in the reverse state, and cannot cope with the detection of the rolling linear guide pair in the reverse state. Summary of the invention
[0004] Based on this, it is necessary to provide a damping and vibration reduction performance test platform to address the problems that the current rolling linear guide pair damping performance detection accuracy is low, the detection position is fixed and cannot meet the requirements of simultaneous forward and reverse installation.
[0005] A damping and vibration reduction performance testing platform, used for detecting the damping performance of a rolling linear guide auxiliary system, comprises a base; a detection platform, the detection platform is arranged on the base, the detection platform comprises a base, a workbench, a drive assembly and a gantry, the rolling linear guide auxiliary system is arranged between the base and the workbench, the drive assembly is arranged on the base and drives the workbench to move in a first direction, the gantry is straddled on the workbench and moves in the first direction; an excitation assembly, the excitation assembly is arranged above the workbench, the excitation assembly comprises an exciter and an excitation slide rail, the excitation slide rail is arranged on the gantry, the exciter is used to impact the workbench, the exciter is arranged on the excitation slide rail and moves in a second direction, and the second direction is perpendicular to the first direction.
[0006] Furthermore, a translation rail is arranged on the base, the translation rail is arranged along the first direction, and the gantry is arranged on the translation rail.
[0007] Furthermore, the detection platform also includes a plurality of bosses arranged in parallel, the bosses are arranged on the base and along the first direction, and the rolling linear guide pair system is arranged on the bosses.
[0008] Furthermore, a mounting plane is arranged on the boss, and a plurality of the bosses are arranged in pairs, and the mounting planes on each pair of the bosses have different widths.
[0009] Furthermore, the rolling linear guide pair system includes a guide rail, a slider and a damper, the slider and the damper are arranged on the guide rail, the guide rail is arranged on the boss, and the slider and the damper are connected to the workbench.
[0010] Furthermore, the rolling linear guide pair system includes a guide rail, a slider and a damper, the slider and the damper are arranged on the guide rail, the detection platform also includes a support plate, the support plate is arranged on the boss, the slider and the damper are arranged on the support plate, and the guide rail is connected to the workbench.
[0011] Furthermore, an oil filling hole is provided on the damper, and an oil film layer is provided between the damper and the guide rail.
[0012] Furthermore, the thickness of the oil film layer is between 0.02 mm and 0.06 mm.
[0013] Furthermore, the excitation assembly also includes an elastic member, and the exciter is connected to the excitation slide rail via the elastic member.
[0014] Furthermore, it also includes a protective cover and a sensor, wherein the sensor is arranged on the workbench, the protective cover is arranged on the base, and a sound insulation board is arranged inside the protective cover.
[0015] Furthermore, a damping and vibration reduction performance test method is provided, which is applicable to the damping and vibration reduction performance test platform described above, and further includes the following steps:
[0016] A damper is installed on the rolling linear guide rail pair system, and the vibration excitation component is operated to move along the first direction and the second direction and excite the workbench to obtain a maximum vibration reduction amplitude;
[0017] Assembling the dampers of different models, repeating the above process to obtain a plurality of the maximum vibration reduction amplitudes;
[0018] The damper is unloaded from the rolling linear guide pair system, and the vibration excitation component is operated to move along the first direction and the second direction and excite the workbench to obtain a maximum vibration amplitude;
[0019] The differences between the plurality of maximum vibration damping amplitudes and the maximum vibration amplitude are compared in sequence.
[0020] The damping and vibration reduction performance test platform provided in the present application includes a base and a workbench on the test platform. The rolling linear guide pair is fixed by the base and the workbench to realize the normal and reverse installation functions of the rolling linear guide pair. At the same time, the workbench can move along the first direction under the action of the driving component. The excitation component is arranged above the workbench. The workbench is hit by the exciter to detect the damping performance. At the same time, the exciter can move along the second direction on the excitation slide rail. The second direction is arranged perpendicular to the first direction. Through the cooperation of the movable workbench and the exciter, the damping and vibration reduction performance test platform provided in the present application can detect the damping performance of the rolling linear guide pair when it is in static and dynamic conditions. The test range is expanded by the movable exciter, the detection accuracy is higher, and the application range is wider. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 A three-dimensional diagram of a damping and vibration reduction performance testing platform according to Embodiment 1 of the present application;
[0022] Figure 2 This is a three-dimensional assembly diagram of a base and a vibration excitation component of a damping and vibration reduction performance test platform according to Example 1 of the present application;
[0023] Figure 3 A three-dimensional diagram of a detection platform of a damping and vibration reduction performance test platform according to Embodiment 1 of the present application;
[0024] Figure 4 A three-dimensional diagram of the base of the damping and vibration reduction performance testing platform of Example 1 of the present application;
[0025] Figure 5 A three-dimensional diagram of a damping and vibration reduction performance testing platform according to Embodiment 2 of the present application;
[0026] Figure 6 This is a flow chart of the damping and vibration reduction performance testing method of Example 1 of the present application.
[0027] Among them, 10, base, 11, translation rail,
[0028] 20. Testing platform, 21. Base, 211. Boss, 212. Mounting plane, 22. Workbench, 23. Driving assembly, 231. Driver, 232. Lead screw, 233. Connecting plate, 24. Support plate, 25. Gantry;
[0029] 30. Vibration excitation assembly, 31. Vibrator, 32. Vibration excitation rail, 321. Locking member, 33. Elastic member;
[0030] 40. Rolling linear guide system, 41. Guide rail, 42. Slider, 43. Damper, 431. Oil filling hole. DETAILED DESCRIPTION
[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.
[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.
[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0035] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0036] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.
[0037] Figure 1The three-dimensional diagram of the damping and vibration reduction performance test platform of the first embodiment of the present application is shown. The damping and vibration reduction performance test platform provided by the present application is used to detect the damping performance of the rolling linear guide pair, and includes a base 10, a detection platform 20 and an excitation component 30, wherein the detection platform 20 is arranged on the base 10, the detection platform 20 includes a base 21, a workbench 22, a drive component 23 and a gantry 25, the rolling linear guide pair system 40 is arranged between the base 21 and the workbench 22, the drive component 23 is arranged on the base 21 and drives the workbench 22 to move along the first direction AA, and the gantry 25 is arranged across the workbench 22 and moves along the first direction AA. The excitation component 30 is arranged above the workbench 22, the excitation component 30 includes an exciter 31 and an excitation slide 32, the exciter 31 is used to impact the workbench 22, the excitation slide 32 is arranged on the gantry 25, the exciter 31 is arranged on the excitation slide 32 and moves along the second direction BB, and the second direction BB is perpendicular to the first direction AA.
[0038] The damping and vibration reduction performance test platform provided in the present application sets the rolling linear guide pair between the base and the workbench, and realizes the normal or reverse installation of the rolling linear guide pair through the structure between the base and the workbench; the workbench is driven to move by the driving component, and the movement of the exciter is realized by the excitation slide rail. With the cooperation of the movable workbench and the exciter, the dynamic test of the damping and vibration reduction performance is realized. At the same time, the test range of the excitation can be expanded, and the accuracy of the vibration reduction performance measurement of the rolling linear guide pair can be improved. At the same time, a mobile work platform with excellent vibration reduction performance can be developed based on the platform, which can be equipped with execution systems such as robots to minimize the interference of external vibration on the system.
[0039] Figure 2 The assembly stereogram of the base and the excitation assembly of the damping vibration reduction performance test platform of the first embodiment of the present application is shown, combined with Figure 1 As shown, the base 10 provided in the present application is provided with a translation rail 11, the translation rail 11 is arranged along the first direction AA, and the excitation assembly 30 is arranged on the translation rail 11. Specifically, the gantry 25 is straddled on the translation rail 11 of the base 10, and the excitation assembly 30 is arranged on the gantry 25. The gantry 25 is driven to move along the translation rail 11 to realize the movement of the excitation assembly 30 along the first direction AA, thereby ensuring that the excitation assembly 30 can always be above the workbench 22 when the workbench 22 moves. Furthermore, a locking member (not shown) is provided on the translation rail 11, and the gantry 25 is fixed to the translation rail 11 by the locking member, thereby improving the stability of the system operation. Optionally, the locking member includes but is not limited to a locking nut, a clamp, etc.
[0040] The excitation rail 32 is arranged on the gantry 25, and the vibrator 31 is slidably arranged on the excitation rail 32. On the one hand, the vibrator 31 is moved along the first direction AA through the gantry 25; on the other hand, the vibrator 31 is moved along the second direction BB through the excitation rail 32. The dynamic movement of the vibrator 31 is achieved by the translation rail 11 and the excitation rail 32, thereby increasing the range of the vibrator 31 acting on the workbench 22 and improving the accuracy of the detection.
[0041] Furthermore, the excitation assembly 30 also includes an elastic member 33. Optionally, the elastic member 33 is a spring, and the exciter 31 is connected to the excitation rail 32 via the elastic member 33. In this way, the elastic member 33 buffers the reaction force acting on the excitation rail 32 when the exciter 31 is working, thereby avoiding damage to the excitation rail 32. In addition, a locking member 321 is also provided on the excitation rail 32, and the exciter 31 is fixed to the excitation rail 32 by the locking member 321, thereby improving the stability of the system operation. Optionally, the locking member 321 includes but is not limited to a locking nut, a clamp, etc.
[0042] Figure 3 A three-dimensional diagram of a detection platform of a damping and vibration reduction performance test platform according to the first embodiment of the present application is shown. Figure 4 A three-dimensional diagram of the base of the damping and vibration reduction performance test platform of the first embodiment of the present application is shown, combined with Figure 1-Figure 4 As shown, the detection platform 20 also includes a plurality of bosses 211 arranged in parallel, the bosses 211 are arranged on the base 21 and arranged along the first direction AA, and the rolling linear guide sub-system 40 is arranged on the bosses 211. A mounting plane 212 is arranged on the boss 211, and the mounting plane 212 is used to fix the rolling linear guide sub-system 40. The plurality of bosses 211 are arranged in pairs, and the mounting planes 212 on each pair of bosses 211 have different widths. Specifically, the bosses 211 provided in the present application are divided into two groups, and the two groups are symmetrical, and each group includes a plurality of mounting planes 212 of unequal widths arranged in sequence, which are used to fix the rolling linear guide sub-systems 40 of different sizes.
[0043] The rolling linear guideway system 40 provided in the present application includes a guideway 41, a slider 42 and a damper 43. The rolling linear guideway system 40 is clamped between the boss 211 and the workbench 22, and a sensor (not shown) is arranged on the workbench 22. The exciter 31 acts on the workbench 22, and the sensor detects and feeds back information in real time to judge the damping vibration reduction performance. The workbench 22 is pre-installed with a vibration, sound, temperature and other information detection interface, which can collect vibration and noise data and cooperate with the vibration analysis post-processing platform to realize the analysis and evaluation of the vibration reduction effect.
[0044] In one embodiment of the present application, the slider 42 and the damper 43 are arranged on the guide rail 41, the guide rail 41 is arranged on the mounting plane 212 of the boss 211, and the slider 42 and the damper 43 are connected to the workbench 22, that is, the rolling linear guide rail pair system 40 is installed properly, at this time the guide rail 41 is fixed, and the workbench 22 drives the slider 42 and the damper 43 to move to achieve its dynamic measurement. Optionally, the range of the guide rail 41 that the mounting plane 212 can be used to fix is between 25mm-75mm.
[0045] In another embodiment of the present application, the slider 42 and the damper 43 are arranged on the guide rail 41, and the detection platform 20 also includes a support plate 24, the support plate 24 is arranged on the boss 211, the support plate 24 is fixed on the mounting plane 212 of the boss 211, the slider 42 and the damper 43 are arranged on the support plate 24, the slider 42 and the damper 43 are fixed by the support plate 24, and the guide rail 41 is connected to the workbench 22, that is, the reverse installation of the rolling linear guide rail pair system 40 is realized, that is, Figure 5 The structure shown in the stereoscopic diagram of the damping and vibration reduction performance testing platform of the second embodiment of the present application is shown. At this time, the guide rail 41 is driven to move by the workbench 22 to realize its dynamic measurement.
[0046] Specifically, the workbench 22 is connected to the driving assembly 23, and the workbench 22 is driven to move along the first direction AA by the driving assembly 23. The driving assembly 23 includes a driver 231 and a lead screw 232. A connecting plate 233 is provided at the end of the workbench 22. The lead screw 232 passes through the connecting plate 233 and is fixed on the base 21. The lead screw 232 rotates to drive the workbench 22 to move along the first direction AA. When the workbench 22 is installed in the normal state, it is connected to the guide rail 41. When the workbench 22 is installed in the reverse state, it is connected to the slider 42 and the damper 43. The movement of the workbench 22 drives the rolling linear guide system 40 to move along the first direction AA, and the dynamic test of the damping and vibration reduction performance of the rolling linear guide is realized under the action of the excitation assembly 30.
[0047] Furthermore, the damper 43 provided in the present application is provided with an oil injection hole 431, and lubricating oil is injected into the space between the damper 43 and the guide rail 41 through the oil injection hole 431, so that an oil film layer is formed between the damper 43 and the guide rail 41, and the thickness of the oil film layer is between 0.02 mm and 0.06 mm. It should be noted that during the design, technicians can design the oil film gap according to different requirements, so as to achieve different damping and vibration reduction effects.
[0048] Furthermore, a protective cover (not shown) is included. The protective cover is arranged on the base 10. A sound insulation board is arranged inside the protective cover. The protective cover is used to isolate the device from the outside world, thereby reducing noise pollution during operation of the device.
[0049] Furthermore, a damping and vibration reduction performance testing method is provided, which is applicable to the damping and vibration reduction performance testing platform described above and comprises the following steps:
[0050] S111: a damper is installed on the rolling linear guide rail pair system, and the vibration excitation component is operated to move along the first direction and the second direction and vibrate the workbench to obtain a maximum vibration reduction amplitude;
[0051] The rolling linear guide subsystem is equipped with a damper, and various types of sensors are installed on the workbench to check noise, vibration and other signals. The damper is installed in the linear guide subsystem, the gantry is moved along the first direction, and the exciter is moved along the second direction. The movement of the exciter in the first direction and the second direction can make the exciter vibrate various parts of the workbench within a certain frequency range, and fit with the corresponding control system to confirm the maximum vibration reduction amplitude and exciting force, and calculate the maximum vibration reduction amplitude under unit exciting force.
[0052] S112: assembling the dampers of different models, and repeating the above process to obtain a plurality of maximum vibration reduction amplitudes;
[0053] By replacing dampers of different types and repeating the above process, different maximum vibration reduction amplitudes and corresponding exciting forces corresponding to different types of dampers can be obtained. The maximum vibration reduction amplitude under unit exciting force can be calculated to determine the vibration reduction effect of each damper.
[0054] S113: Unloading the damper from the rolling linear guide rail pair system, operating the vibration excitation assembly to move along the first direction and the second direction and excite the workbench to obtain a maximum vibration amplitude;
[0055] The damper on the rolling linear guide system is unloaded, and the exciter is moved along the first direction and the second direction. The exciter performs an excitation test on various positions of the workbench within a certain frequency range to obtain the maximum vibration amplitude and the corresponding exciting force, and the maximum vibration amplitude under the unit exciting force is calculated.
[0056] S114: sequentially comparing differences between the plurality of maximum vibration damping amplitudes and the maximum vibration amplitude.
[0057] Within the above test frequency range of the exciter, taking the maximum vibration amplitude under unit exciting force as a benchmark, multiple different maximum vibration reduction amplitudes under multiple unit exciting forces corresponding to different dampers are compared one by one with the above maximum vibration amplitude, that is, the difference between the two is taken, so as to calculate and evaluate the vibration reduction effect of a certain model and specification of damper within a certain frequency range. The larger the difference, the better the vibration reduction effect. Finally, it is determined that the damper corresponding to the maximum difference has the best vibration reduction effect.
[0058] It should be noted that the purpose of moving along the first direction and the second direction is to enable the vibrator to act on various positions of the workbench, and it does not mean that the vibrator must be moved strictly in this order. In actual operation, technicians can repeatedly move the vibrator according to their own needs to obtain the final value to be confirmed.
[0059] The damping vibration reduction performance test platform provided in this application can cooperate with the measurement and control system to detect the vibration characteristics of linear guides for the positive and negative installation of various specifications of linear guides, and can also verify the high fidelity of the reliability simulation test. The construction and operation of the entire system equipment meet the standards GB / T30173.1-2013 / ISO2017-1:2005 "Mechanical vibration and shock elastic mounting systems Part 1: Technical information for vibration isolation systems for exchange", GB / T14412-2005 / ISO 5348:1998 "Mechanical installation of mechanical vibration and shock accelerometers", GB / T11349.2-2006 / ISO7626-2:1990 "Vibration and shock mechanical admittance test determination Part 2: Single-point translational excitation measurement using an exciter".
[0060] The damping and vibration reduction performance test platform provided in the present application includes a base and a workbench on the test platform. The rolling linear guide pair is fixed by the base and the workbench to realize the normal and reverse installation functions of the rolling linear guide pair. At the same time, the workbench can move along the first direction under the action of the driving component. The excitation component is arranged above the workbench. The workbench is hit by the exciter to detect the damping performance. At the same time, the exciter can move along the second direction on the excitation slide rail. The second direction is arranged perpendicular to the first direction. Through the cooperation of the movable workbench and the exciter, the damping and vibration reduction performance test platform provided in the present application can detect the damping performance of the rolling linear guide pair when it is in static and dynamic conditions. The test range is expanded by the movable exciter, the detection accuracy is higher, and the application range is wider.
[0061] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0062] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.
Claims
1. A damping and vibration reduction performance test platform, used to detect the damping performance of a rolling linear guide system, characterized in that: include: Base; A detection platform, wherein the detection platform is arranged on the base, the detection platform includes a base, a workbench, a drive assembly and a gantry, the rolling linear guide rail subsystem is arranged between the base and the workbench, the drive assembly is arranged on the base and drives the workbench to move along a first direction, the gantry is straddled on the workbench and moves along the first direction, the detection platform also includes a support plate and a plurality of parallel bosses, the bosses are arranged on the base and along the first direction, the support plate is arranged on the bosses, the rolling linear guide rail subsystem includes a guide rail, a slider and a damper, the slider and the damper are arranged on the guide rail, the slider and the damper are arranged on the support plate, and the guide rail is connected to the workbench; An excitation component is arranged above the workbench, the excitation component includes an exciter and an excitation slide rail, the excitation slide rail is arranged on the gantry, the exciter is used to impact the workbench, the exciter is arranged on the excitation slide rail and moves along a second direction, and the second direction is perpendicular to the first direction.
2. The damping and vibration reduction performance testing platform according to claim 1, characterized in that: A translation slide rail is arranged on the base, the translation slide rail is arranged along the first direction, and the gantry is arranged on the translation slide rail.
3. The damping and vibration reduction performance testing platform according to claim 1, characterized in that: A mounting plane is arranged on the boss, and a plurality of the bosses are arranged in pairs, and the mounting planes on each pair of the bosses have different widths.
4. The damping and vibration reduction performance testing platform according to claim 1, characterized in that: The rolling linear guide pair system comprises a guide rail, a slider and a damper, wherein the slider and the damper are arranged on the guide rail, the guide rail is arranged on the boss, and the slider and the damper are connected to the workbench.
5. The damping and vibration reduction performance testing platform according to claim 1 or 4, characterized in that: An oil filling hole is arranged on the damper, and an oil film layer is arranged between the damper and the guide rail.
6. The damping and vibration reduction performance testing platform according to claim 5, characterized in that: The thickness of the oil film layer is between 0.02 mm and 0.06 mm.
7. The damping and vibration reduction performance testing platform according to claim 1, characterized in that: The excitation assembly also includes an elastic member, and the exciter is connected to the excitation slide rail via the elastic member.
8. The damping and vibration reduction performance testing platform according to any one of claims 1-4, 6-7, characterized in that: It also includes a protective cover and a sensor. The sensor is arranged on the workbench, the protective cover is arranged on the base, and a sound insulation board is arranged inside the protective cover.
9. A damping and vibration reduction performance testing method, applicable to the damping and vibration reduction performance testing platform according to any one of claims 1 to 8, characterized in that: The following steps are also included: A damper is installed on the rolling linear guide rail pair system, and the vibration excitation component is operated to move along the first direction and the second direction and excite the workbench to obtain a maximum vibration reduction amplitude; Assembling the dampers of different models, repeating the above process to obtain a plurality of the maximum vibration reduction amplitudes; The damper is unloaded from the rolling linear guide pair system, and the vibration excitation component is operated to move along the first direction and the second direction and excite the workbench to obtain a maximum vibration amplitude; The differences between the plurality of maximum vibration damping amplitudes and the maximum vibration amplitude are compared in sequence.
Citation Information
Patent Citations
Damping vibration attenuation performance test platform
CN215065133U