Adjusting platform for roughness meter
Through the cooperation of lifting equipment and grating measurement components, the cost-efficiency and low-efficiency problem of roughness meter when detecting parts of different thicknesses is solved, and an efficient and low-cost measurement process is achieved. The scissor hinge structure provides stability and high-precision height adjustment.
Patent Information
- Application Number
- CN202422045919.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-22
AI Technical Summary
Existing roughness instruments require pads of different thicknesses when detecting parts of different thicknesses, resulting in high cost and low detection efficiency.
The lifting equipment and grating measurement components are used in conjunction with grating measurement components. The bearing table height is accurately adjusted through grating measurement components, so as to achieve no prefabricated pads of different thicknesses, and the use of scissor hinge structure provides stability and convenient operation.
Save costs and improve measurement efficiency, grating measurement components provide high resolution and high precision displacement measurements, and the scissor hinge structure is robust and durable, reducing long-term operation costs.
Smart Images
Figure CN223077648U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of measuring devices, and more specifically, to an adjustment platform for a roughness meter. Background Art
[0002] A roughness meter is a precision instrument used to measure the surface roughness of an object. It is mainly used to evaluate and quantify the unevenness of the microscopic structure of the object surface, which is crucial for ensuring product quality, especially in the manufacturing industry. Roughness is one of the key factors affecting the performance of parts, such as wear, friction, and sealing. The roughness meter usually uses the probe method to measure the surface roughness. During the measurement process, a tiny probe moves along the measured surface while recording the changes in the probe's movement along with the surface profile undulations. These data are then converted into a series of numerical values to represent the characteristics of the surface roughness.
[0003] In the prior art, when detecting parts with different thicknesses placed on the sample stage, it is necessary to adjust the height of the parts by padding, or the height of the sample stage, or the height of the base where the detection probe on the roughness meter is located to detect parts with different thicknesses. The problem caused by this is that different thicknesses of parts require different pads, and it is necessary to make pads with different thicknesses, increasing the cost. Sometimes, in the case of no pads with appropriate thicknesses, the detection efficiency is affected.
[0004] Therefore, the prior art still needs to be improved and developed. Summary of the Utility Model
[0005] The purpose of the present application is to propose an adjustment platform for a roughness meter to solve the technical problems that the existing roughness meter needs to match pads with different thicknesses during use, resulting in high costs and low detection efficiency.
[0006] To achieve the above purpose, the technical solution adopted by the present application is: to provide an adjustment platform for a roughness meter, including:
[0007] A detection stage, including a base, on which a lifting device is provided, and a bearing stage for placing the roughness meter is provided at the top of the lifting device;
[0008] A sample platform is arranged on one side of the detection stage, and a grating measurement component for detecting the height of the bearing stage is provided on the sample platform.
[0009] Further, the grating measurement component includes a grating scale and a photoelectric detector. The grating scale is perpendicular to the ground, the photoelectric detector is connected to the grating scale, and an indicating grating push rod parallel to the grating scale is provided on the bearing stage. When the indicating grating push rod moves parallel to the grating scale, it passes through the photoelectric detector.
[0010] Further, a height display is also provided on the sample platform. The height display is electrically connected to the photoelectric detector and is used to display the height of the bearing table.
[0011] In some embodiments, the lifting device includes a scissor hinge and a driving member. The scissor hinge includes rods and hinge shafts. The rods are arranged in a staggered manner and are hinged by the hinge shafts to form a scissor structure. The driving member is connected to the scissor hinge and is used to drive the scissor hinge to unfold or fold. When the scissor hinge unfolds or folds, it drives the bearing table to rise or fall.
[0012] Further, sliding platforms are provided on both the bearing table and the base. Sliding grooves parallel to the bearing table are provided on the sliding platforms. The rods at the top of the scissor hinge are slidably connected in the sliding groove of the bearing table, and the rods at the bottom of the scissor hinge are slidably connected in the sliding groove of the base.
[0013] In some embodiments, the driving member includes a servo motor and a transmission rod. The servo motor is arranged on the base. One end of the transmission rod is connected to the output shaft of the servo motor, and the other end is connected to the scissor hinge. When the servo motor is started, the output shaft drives the transmission rod to move linearly.
[0014] Further, the driving member further includes a controller. The controller is electrically connected to the servo motor and the photoelectric detector. The photoelectric detector is used to generate a height signal, and the controller is used to receive the height signal and control the start and stop of the servo motor.
[0015] In some embodiments, the driving member includes an adjusting handwheel. The adjusting handwheel includes an adjusting lead screw and an adjusting nut sleeved on the adjusting lead screw. The adjusting nut is fixedly connected to the scissor hinge. One end of the adjusting lead screw is axially connected to the scissor hinge, and the other end extends outside the scissor hinge and is provided with a handle.
[0016] Further, the bottom of the sample platform is fixedly connected to the base.
[0017] In some embodiments, the grating measurement assembly is arranged at the bottom of the sample platform, and a reinforcing rod is connected between the sample platform and the base.
[0018] The beneficial effects of the adjustment platform for the roughness meter provided by this application are at least as follows:
[0019] By the combined use of the lifting device and the grating measurement assembly, it is no longer necessary to prefabricate pads with different thicknesses to raise the bearing table or the sample platform, saving costs. The adjustment process is also simpler and more convenient, improving the measurement efficiency.
[0020] The grating measurement component realizes precise displacement measurement through the Moiré fringe effect. The signal it outputs is a digital pulse. Compared with other linear displacement measurement devices, the grating measurement component can provide extremely high resolution, usually reaching the micron level or even the nanometer level, with high detection accuracy.
[0021] Compared with other types of lifting equipment, due to its structural characteristics, when the scissor-type lifting equipment rises, due to the cross structure of the rods, it can provide good stability. The structure of the scissor lift is strong and durable, and can withstand long-term high-intensity use. And the scissor-type lifting equipment is easy to operate, with a simple structure, easy to maintain and repair, which reduces the long-term operation cost and improves the availability of the equipment. Brief Description of the Drawings
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0023] Figure 1 It is a schematic structural diagram of the adjustment platform for the roughness meter provided by the embodiment of the present application when placed horizontally.
[0024] Among them, the reference numerals in the drawings are as follows:
[0025] 1. Base;
[0026] 2. Lifting equipment; 21. Rod; 22. Hinge shaft;
[0027] 3. Carrying platform; 31. Index grating push rod;
[0028] 4. Sample platform;
[0029] 5. Grating measurement component; 51. Grating scale; 52. Photoelectric detector;
[0030] 6. Height display;
[0031] 7. Slide; 71. Slide groove;
[0032] 8. Adjusting lead screw; 81. Handle;
[0033] 9. Adjusting nut;
[0034] 10. Reinforcing rod. Detailed Embodiments
[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clear and understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0036] It should be noted that when a component is referred to as "fixed to" or "disposed on" another component, it can be directly or indirectly located on that another component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to that another component. The orientations or positions indicated by the terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positions shown in the accompanying drawings, and are only for the convenience of description and cannot be construed as a limitation to the technical solution of the present application. The terms "first" and "second" are only used for the purpose of convenient description and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of technical features. The meaning of "a plurality" is two or more, unless otherwise specifically defined.
[0037] Next, with reference to the accompanying drawings, the adjustment platform for a roughness meter according to an embodiment of the present application will be described.
[0038] Please refer to Figure 1 , Figure 1 , which shows a schematic structural diagram of the adjustment platform for a roughness meter according to the present application when placed horizontally, including a detection platform and a sample platform 4. When performing roughness measurement, the object to be detected is placed on the sample platform 4, and the roughness meter is placed on the carrier table 3.
[0039] Specifically, referring to Figure 1 , the detection table includes a base 1, a lifting device 2 is provided on the base 1, and a carrier table 3 for placing the roughness meter is provided at the top of the lifting device 2. The sample platform 4 is disposed on one side of the detection table, and a grating measurement assembly 5 for detecting the height of the carrier table 3 is provided on the sample platform 4.
[0040] It can be understood that a probe is provided on the roughness meter. During the measurement process, the tiny probe moves along the surface to be measured, and at the same time records the changes of the probe with the undulations of the surface profile. These data will then be converted into a series of numerical values to represent the characteristics of the surface roughness. Therefore, during the detection process, it is necessary to make the height of the probe on the roughness meter match that of the object to be detected to ensure the accuracy of the detection result.
[0041] In the traditional technology, the relative height between the roughness meter and the object to be detected is adjusted by placing pads with different thicknesses under the roughness meter or under the sample stage. However, this requires preparing pads with different thicknesses. When detecting objects to be detected with different thicknesses, pads with matching thicknesses need to be placed under the roughness meter or the sample stage, which leads to the problems of low operation efficiency and high cost.
[0042] In this embodiment, when using the adjustment platform, first place the object to be detected on the sample platform 4, place the roughness meter on the bearing platform 3, adjust the height of the bearing platform 3 through the lifting device 2, and during the process of adjusting the height, detect the height of the lifting of the bearing platform 3 through the grating measurement assembly 5, so as to quantitatively adjust the height of the lifting of the bearing platform 3 to make the height of the roughness meter match the surface of the object to be detected.
[0043] By the combined use of the lifting device 2 and the grating measurement assembly 5, it is no longer necessary to prefabricate pads with different thicknesses to raise the bearing platform 3 or the sample platform 4, which saves costs, and the adjustment process is also simpler and more convenient, improving the measurement efficiency.
[0044] In some embodiments, the grating measurement assembly 5 includes a grating scale 51 and a photoelectric detector 52. The grating scale 51 is perpendicular to the ground, the photoelectric detector 52 is connected to the grating scale 51, and an indicating grating push rod 31 parallel to the grating scale 51 is provided on the bearing platform 3. When the indicating grating push rod 31 moves parallel to the grating scale 51, it passes through the photoelectric detector 52.
[0045] It can be understood that the grating measurement assembly 5 is an optical detection device for accurately measuring linear displacement. The grating scale 51 is a grating with equally spaced engraved lines, fixed on the sample platform 4. The photoelectric detector 52 is also called a grating reading head, which is used to read the engraved lines on the grating scale 51. The indicating grating push rod 31 is also provided with equally spaced engraved lines. When adjusting the lifting device 2, the indicating grating push rod 31 moves with the bearing platform 3, and the indicating grating push rod 31 will move parallel to the grating scale 51, that is, it moves up and down relative to the sample platform 4.
[0046] When the indicating grating push rod 31 moves relative to the grating scale 51, light passes through the gap of the indicating grating push rod 31, then passes through the gap of the grating scale 51, and finally forms a Moiré fringe on the photoelectric detector 52. As the indicating grating push rod 31 moves, the Moiré fringe also changes. The photoelectric detector 52 detects these changes and converts them into electrical signals. By calculating the changes in these electrical signals, we can know how much distance the indicating grating push rod 31 has moved relative to the grating scale 51, thereby measuring the displacement.
[0047] The grating measurement component 5 achieves precise displacement measurement through the Moiré fringe effect. The signal it outputs is a digital pulse. Compared with other linear displacement measurement devices, the grating measurement component 5 can provide extremely high resolution, usually reaching the micron level or even the nanometer level, with high detection accuracy; the grating measurement component 5 also has good repeatability, which means that when measuring the same position multiple times under the same conditions, the results are very consistent, and the measurement accuracy is not easily affected by wear. Therefore, stable measurement results can be maintained for a long time, especially suitable for adjustment platforms that need to be frequently height-adjusted.
[0048] At the same time, the grating measurement component 5 adopts a non-contact measurement method. During installation, it does not need to contact the object to be measured, the installation process is simple, and it is convenient for maintenance. The grating measurement component 5 can also provide continuous displacement monitoring, especially suitable for adjustment platforms that need to monitor displacement changes in real time.
[0049] Furthermore, referring to Figure 1 , to facilitate observing the lifting height during the process of adjusting the lifting device 2, a height display 6 is also provided on the sample platform 4. The height display 6 is electrically connected to the photoelectric detector 52 and is used to display the height of the carrier table 3.
[0050] Among them, the photoelectric detector 52 is provided with output ports, such as analog voltage output, TTL pulse output or digital interface, for outputting electrical signals with measurement information. The height display 6 is provided with a control unit, and the input interface of the control unit is electrically connected to the output port of the photoelectric detector 52 to achieve signal transmission. The photoelectric detector 52 transmits the electrical signal with measurement information to the control unit. The control unit is provided with a software program, and through the software program, real-time displacement data can be displayed on the display screen of the height display 6.
[0051] In this way, while adjusting the lifting device 2, the adjusted height information can be observed through the height display 6, making the height adjustment process more intuitive and accurate.
[0052] In some embodiments, referring to Figure 1 , to improve the stability and cost of the lifting device 2, the lifting device 2 includes a scissor hinge and a driving member. The scissor hinge includes rods 21 and hinge shafts 22. The rods 21 are arranged in an alternating manner and are hinged by the hinge shafts 22 to form a scissor structure. The driving member is connected to the scissor hinge and is used to drive the scissor hinge to unfold or fold. When the scissor hinge unfolds or folds, it drives the carrier table 3 to rise or fall.
[0053] When lifting or lowering the lifting device 2, the pressure of the driving member is used to push the rods 21 of the scissor hinge to rotate relative to the hinge shafts 22.
[0054] When it is necessary to raise the height of the carrier table 3, the rod 21 gradually unfolds according to the principle of the scissor structure to form an "X" shape. As the boom unfolds, the carrier table 3 rises accordingly until the required lifting height is reached.
[0055] When it is necessary to lower the height of the carrier table 3, the control drive member reversely pushes the scissor hinge, and the originally unfolded rod 21 relatively retracts. The rod 21 in the scissor hinge gradually folds, and the carrier table 3 descends accordingly.
[0056] It can be understood that compared with other types of lifting equipment 2, due to its structural characteristics, when the scissor-type lifting equipment 2 rises, due to the cross structure of the rod 21, it can provide good stability. The structure of the scissor lift is strong and durable, and can withstand long-term high-intensity use. And the scissor-type lifting equipment 2 is simple to operate, with a simple structure, easy to maintain and repair, which reduces the long-term operation cost and improves the availability of the equipment.
[0057] Further, refer to Figure 1 , both the carrier table 3 and the base 1 are provided with sliding tables 7. The sliding table 7 is provided with a chute 71 parallel to the carrier table 3. The rod 21 at the top of the scissor hinge is slidably connected in the chute 71 of the carrier table 3, and the rod 21 at the bottom of the scissor hinge is slidably connected in the chute 71 of the base 1.
[0058] When the lifting equipment 2 is lifting and lowering, the rod 21 will switch between the unfolded state and the folded state, and the rod 21 at the top and bottom of the lifting equipment 2 will move relatively in the horizontal direction. After the sliding table 7 and the chute 71 are provided, the chute 71 can provide a sliding space for the rod 21 to cooperate with the movement of the rod 21 during unfolding and folding.
[0059] In some embodiments, the drive member includes a servo motor and a transmission rod. The servo motor is arranged on the base 1. One end of the transmission rod is connected to the output shaft of the servo motor, and the other end is connected to the scissor hinge. When the servo motor is started, the output shaft drives the transmission rod to move linearly.
[0060] During use, start the servo motor. The output shaft of the servo motor rotates, and the transmission rod connected to the output shaft adjusts the rotation to linear motion, thereby driving the scissor hinge to move linearly.
[0061] Further, the transmission rod can adopt a lead screw and nut structure, that is, a nut is arranged on the output shaft. The servo motor drives the nut to rotate, and the lead screw is fixedly connected to the scissor hinge. The positions of the nut and the lead screw are relatively fixed. After the nut rotates, the lead screw can move linearly along the axial direction of the nut, thereby driving the scissor hinge to move linearly.
[0062] Further, to achieve intelligent control, the driving member further includes a controller, which is electrically connected to the servo motor and the photoelectric detector 52. The photoelectric detector 52 is used to generate a height signal, and the controller is used to receive the height signal and control the start and stop of the servo motor.
[0063] When an instruction signal is input to the controller, the instruction signal is the height instruction to be adjusted. The controller converts the instruction signal into an electrical signal and controls the servo motor to drive the lifting device 2 to lift. During the lifting process of the lifting device 2, the photoelectric detector 52 monitors the height change in real time, generates a height signal, and feeds the height signal back to the controller. The height signal generated by the photoelectric detector 52 is essentially an electrical signal with height information. After the controller receives the height signal, it will compare the height signal and the instruction signal through a software program. When the height information of the height signal is the same as that of the instruction signal, the controller controls the servo motor to stop lifting, completing the quantitative height adjustment of the lifting device 2.
[0064] Through the intelligent linkage of the servo motor and the controller, the operation steps of the lifting device 2 are simplified, and the lifting accuracy is greatly improved.
[0065] In some embodiments, in addition to being driven by a servo motor, the driving member can also be set as an adjusting handwheel. Refer to Figure 1 , the adjusting handwheel includes an adjusting lead screw 8 and an adjusting nut 9 sleeved on the adjusting lead screw 8. The adjusting nut 9 is fixedly connected to the scissor hinge. One end of the adjusting lead screw 8 is axially connected to the scissor hinge, and the other end extends outside the scissor hinge and is provided with a handle 81.
[0066] When adjusting through the adjusting handwheel, the operator rotates the handle 81 to drive the adjusting lead screw 8 to rotate. The adjusting nut 9 threadedly connected to the adjusting lead screw 8 will linearly move along the length direction of the adjusting lead screw 8. During the movement of the adjusting nut 9, it drives the scissor hinge to move, so as to realize the expansion or folding of the rod 21 on the scissor hinge, and complete the lifting of the lifting device 2. It is convenient to operate, easy to maintain and saves costs.
[0067] In some embodiments, refer to Figure 1 , the bottom of the sample platform 4 is fixedly connected to the base 1, and the relative position between the sample platform 4 and the detection table can be kept stable, avoiding measurement errors caused by relative movement between the sample platform 4 and the detection table during the measurement process.
[0068] Further, refer to Figure 1, the grating measurement component 5 is arranged at the bottom of the sample platform 4, and a reinforcing rod 10 is connected between the sample platform 4 and the base 1. The sample platform 4 is an L-shaped flat plate structure. The reinforcing rod 10 is arranged between the bottom of the sample platform 4 and the base 1 to form a triangular support body with a more stable structure, improving the structural strength and load capacity of the sample platform 4.
[0069] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. An adjustment platform for a roughness meter, characterized in that Comprising: A detection table, including a base, on which a lifting device is provided, and a bearing table for placing a roughness meter is provided at the top of the lifting device; A sample platform is arranged on one side of the detection table, and a grating measurement component for detecting the height of the bearing table is provided on the sample platform.
2. The adjustment platform for a roughness meter according to claim 1, characterized in that, The grating measurement component includes a grating scale and a photoelectric detector. The grating scale is perpendicular to the ground, the photoelectric detector is connected to the grating scale, and an indicating grating push rod parallel to the grating scale is provided on the bearing table. When the indicating grating push rod moves parallel to the grating scale, it passes through the photoelectric detector.
3. The adjustment platform for a roughness meter according to claim 2, characterized in that, A height display is also provided on the sample platform. The height display is electrically connected to the photoelectric detector and is used to display the height of the bearing table.
4. The adjustment platform for a roughness meter according to claim 3, wherein, The lifting device includes a scissor hinge and a driving member. The scissor hinge includes rods and hinge shafts. The rods are arranged in an alternating manner and are hinged through the hinge shafts to form a scissor structure. The driving member is connected to the scissor hinge and is used to drive the scissor hinge to unfold or fold. When the scissor hinge unfolds or folds, it drives the bearing table to rise or fall.
5. The adjustment platform for a roughness meter according to claim 4, characterized in that, Sliding platforms are provided on both the bearing table and the base. Chute grooves parallel to the bearing table are provided on the sliding platforms. The rods at the top of the scissor hinge are slidably connected in the chute grooves of the bearing table, and the rods at the bottom of the scissor hinge are slidably connected in the chute grooves of the base.
6. The adjustment platform for a roughness meter according to claim 4, wherein The driving member includes a servo motor and a transmission rod. The servo motor is arranged on the base. One end of the transmission rod is connected to the output shaft of the servo motor, and the other end is connected to the scissor hinge. When the servo motor is started, the output shaft drives the transmission rod to move linearly.
7. The adjustment platform for a roughness meter according to claim 6, characterized in that, The driving member further includes a controller. The controller is electrically connected to the servo motor and the photoelectric detector. The photoelectric detector is used to generate a height signal, and the controller is used to receive the height signal and control the start and stop of the servo motor.
8. The adjustment platform for a roughness meter according to claim 4, characterized in that The driving member includes an adjusting handwheel. The adjusting handwheel includes an adjusting lead screw and an adjusting nut sleeved on the adjusting lead screw. The adjusting nut is fixedly connected to the scissor hinge. One end of the adjusting lead screw is axially connected to the scissor hinge, and the other end extends outside the scissor hinge and is provided with a handle.
9. The adjustment platform for a roughness meter according to claim 1, characterized in that, The bottom of the sample platform is fixedly connected to the base.
10. The adjustment platform for a roughness meter according to claim 9, characterized in that, The grating measurement component is arranged at the bottom of the sample platform, and a reinforcing rod is connected between the sample platform and the base.