Grating module for multiple scenarios
Patent Information
- Application Number
- CN202522595744.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-08
- Publication Date
- 2026-10-13
- Estimated Expiration
- 2035-12-08
AI Technical Summary
[0003]然而,现有的光栅测量系统在实际应用中存在以下技术问题:首先,抗干扰能力差,易受应力影响,传统光栅尺多采用刚性螺丝锁紧安装,当设备运行产生振动、冲击或因环境温度变化导致机架发生热胀冷缩变形时,应力会直接传递至光栅玻璃体,极易导致光栅信号失真、读数跳动,严重时甚至造成光栅断裂损坏
安装简便,效率高:光栅尺、读数头、导轨等精密部件已预集成并出厂调校,用户仅需固定安装座即可完成部署,无需现场对准调试,大幅降低装配难度与时间,节省人力与制造成本。
Smart Images

Figure CN224850952U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grating module technology, specifically a grating module for use in multiple scenarios. Background Technology
[0002] Grating modules, as a precision displacement measuring device, are widely used in industrial inspection, automation equipment and other fields.
[0003] However, existing grating measurement systems suffer from the following technical problems in practical applications: First, they have poor anti-interference capabilities and are susceptible to stress. Traditional grating rulers are mostly installed using rigid screws. When the equipment vibrates, is impacted, or when the frame expands or contracts due to changes in ambient temperature, the stress is directly transmitted to the grating glass, easily causing grating signal distortion, reading fluctuations, and in severe cases, even grating breakage. Second, they lack contact stability. When performing Z-axis or vertical measurements, if the equipment moves at high speed or experiences momentary vibration, the measuring probe is prone to slight separation from the measured surface, leading to discontinuous measurement data or errors. Finally, installation and debugging are complex, and applicability is limited. Traditional installation methods require extremely high parallelism of the mounting base, necessitating repeated calibration of the gap between the reading head and the grating ruler by professionals. This is not only time-consuming and labor-intensive but also difficult to adapt to the needs of retrofitting older equipment with limited space or non-standard racks.
[0004] Therefore, there is an urgent need to develop a grating module that can buffer installation stress, ensure continuous contact, and offer flexible installation. Utility Model Content
[0005] The purpose of this invention is to provide a grating module for use in multiple scenarios to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a grating module for use in multiple scenarios, comprising a fixing component, the fixing component comprising a slider base, a first fixing seat and a first slider, the first fixing seat being vertically mounted on the left wall of the slider base, the first sliders being mounted on both sides of the right wall of the slider base, a reading head fixing seat being provided on the outer side of the upper first slider, the reading head fixing seat being connected to the slider base by screws, and a reading head body being mounted on the outer wall of the reading head fixing seat; The motion assembly includes a first guide rail, a grating, and a guide rail fixing seat. The first guide rail is installed on the inner side of the first slider on both sides. The guide rail fixing seat is installed on the upper end of the first guide rail. The measuring rod is installed on the lower end of the first guide rail. The left side of the guide rail fixing seat is hinged to the upper part of the spring via a pivot. The lower part of the spring is hinged to the left wall of the slider base. The grating is installed on the upper part of the right wall of the first guide rail.
[0007] Preferably, the first fixing seat is L-shaped.
[0008] Preferably, the slider base and the first fixed seat form a static main frame.
[0009] Preferably, the middle position of the slider base is on the same horizontal line as the middle position of the first slider.
[0010] Preferably, the first slider and the reading head fixing seat are correspondingly arranged, and the first slider and the slider base are fixedly connected.
[0011] Preferably, the first slider and the first guide rail are slidably connected.
[0012] Preferably, the grating and the reading head mounting base are correspondingly arranged.
[0013] Preferably, the first guide rail is fixedly connected to the measuring rod and the guide rail fixing seat, and they are on the same horizontal line.
[0014] Compared with existing technologies, the beneficial effects of this utility model are: Easy to install and highly efficient: Precision components such as grating rulers, reading heads, and guide rails are pre-integrated and factory-calibrated. Users only need to fix the mounting base to complete the deployment. No on-site alignment and debugging are required, which greatly reduces the difficulty and time of assembly and saves manpower and manufacturing costs.
[0015] Reliable measurement and strong anti-interference: Spring preload ensures that the measuring rod is always in contact with the surface being measured, effectively preventing contact interruption caused by vibration or high-speed movement, ensuring continuous and stable signal, and improving data reliability.
[0016] Stress isolation and long lifespan: The moving components can float along the slide rail, and the springs compensate for the installation stress caused by thermal expansion and contraction or frame deformation, avoiding damage to the glass grating and significantly extending the service life of the core components.
[0017] Versatile and adaptable: The modular and compact design reduces the requirements for the mounting base, eliminating the need for double parallel mounting surfaces. It can be easily integrated into various equipment or used for upgrading old systems, and is widely applicable to microscopy, inspection, automation and other scenarios. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0019] Figure 1 This is a frontal three-dimensional structural diagram of the present invention; Figure 2 This is a top-view three-dimensional structural diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the present invention viewed from below; Figure 4 This is a front view structural diagram of the present invention; Figure 5 This is a schematic diagram of the structure of this utility model from below; Figure 6 This is a top view of the structure of this utility model.
[0020] In the figure: 1. Fixed component; 2. Moving component; 101. Slider base; 102. First fixed seat; 103. First slider; 104. Reading head fixed seat; 105. Reading head body; 201. First guide rail; 202. Guide rail fixed seat; 203. Measuring rod; 204. Spring; 205. Grating. Detailed Implementation
[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0024] Example 1: Please see Figure 1-6 This utility model provides a grating module technical solution for use in multiple scenarios: a grating module for use in multiple scenarios includes a fixing component 1, the fixing component 1 includes a slider base 101, a first fixing seat 102 and a first slider 103, the first fixing seat 102 is vertically installed on the left wall of the slider base 101, the first sliders 103 are installed on both sides of the right wall of the slider base 101, a reading head fixing seat 104 is provided on the outer side of the upper first slider 103, the reading head fixing seat 104 is connected to the slider base 101 by screws, and a reading head body 105 is installed on the outer wall of the reading head fixing seat 104; Motion component 2 includes a first guide rail 201, an optical grating 205, and a guide rail fixing seat 202. The first guide rail 201 is installed on the inner side of the first sliders 103 on both sides. The guide rail fixing seat 202 is installed on the upper end of the first guide rail 201, and a measuring rod 203 is installed on the lower end of the first guide rail 201. The measuring rod 203 can be adapted to Z-axis stages of different sizes. The left side of the guide rail fixing seat 202 is connected to the upper part of the spring 204 through a pivot. The spring 204 provides stable preload to ensure that the measuring rod 203 always fits against the Z-axis platform, preventing disengagement due to vibration or impact and improving signal stability. The lower part of the spring 204 is hinged to the left wall of the slider base 101, and the optical grating 205 is installed on the upper part of the right wall of the first guide rail 201.
[0025] The first mounting bracket 102 is L-shaped, which makes it easy to install on the racks of different scanners.
[0026] The slider base 101 and the first fixed seat 102 form a static main frame.
[0027] The middle position of the slider base 101 is on the same horizontal line as the middle position of the first slider 103.
[0028] The upper first slider 103 and the reading head fixing seat 104 are correspondingly set, and the first slider 103 and the slider base 101 are fixedly connected.
[0029] Example 2: This utility model also provides another solution. In this embodiment, based on the first embodiment, the first slider 103 and the first guide rail 201 are slidably connected, which provides good guiding performance, reduces friction and shaking, and ensures the consistency of the motion trajectory. The grating 205 and the reading head fixing seat 104 are correspondingly set, so that the cooperation between the grating 205 and the reading head 105 ensures the accuracy of displacement measurement. The first guide rail 201 is fixedly connected to the measuring rod 203 and the guide rail fixing seat 202, and they are on the same horizontal line. The probe in the measuring rod 203 is electrically connected to the motion control system of the scanner.
[0030] Working principle: During installation, the entire module is fixed to the frame of the scanner or other equipment through the mounting holes on the first fixing base 102. The vertical height of the module is adjusted so that the probe at the bottom of the measuring rod 203 contacts the surface of the object being measured. At this time, the spring 204 is in a stretched or compressed state, applying a constant elastic preload to the guide rail fixing base 202. This force is transmitted to the measuring rod 203 through the first guide rail 201, forcing the measuring rod 203 to always remain pressed tightly against the surface of the object being measured, eliminating mechanical backlash.
[0031] At the start of the measurement, the reading head body 105 reads the initial scale position of the grating 205 and sets it as the zero point. When the measured stage moves up and down, the measuring rod 203 moves synchronously with the stage, causing the first guide rail 201 to slide along a straight line under the guidance of the first slider 103. The grating 205 fixed on the side of the first guide rail 201 is thus displaced.
[0032] At this time, the reading head body 105, fixed on the slider base 101, remains stationary, and a relative displacement is generated between it and the moving grating 205. The reading head body 105 uses optical principles to detect the changes in the grating 205 grid in real time, converts the displacement into a high-precision pulse electrical signal, and transmits it to the external control system for decoding and counting, thereby accurately calculating the real-time position of the Z-axis and realizing closed-loop feedback control.
[0033] During the entire operation, if the external frame expands or contracts due to temperature changes, or if the equipment generates minor vibrations during operation, the non-rigid connection between the fixed component 1 and the moving component 2, namely the sliding engagement between the first slider 103 and the first guide rail 201 and the elastic connection of the spring 204, will come into play. The spring 204 will absorb and buffer these stresses through its own expansion and contraction deformation, ensuring that the grating 205 is not deformed by compression, thus guaranteeing the measurement accuracy and the safety of the equipment.
[0034] Although embodiments of the present utility have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present utility, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A grating module for use in multiple scenarios, characterized in that, include The fixing component (1) includes a slider base (101), a first fixing seat (102) and a first slider (103). The first fixing seat (102) is vertically installed on the left wall of the slider base (101), and the first sliders (103) are installed on both sides of the right wall of the slider base (101). A reading head fixing seat (104) is provided on the outer side of the first slider (103) above. The reading head fixing seat (104) is connected to the slider base (101) by screws, and a reading head body (105) is installed on the outer wall of the reading head fixing seat (104). The motion component (2) includes a first guide rail (201), a grating (205) and a guide rail fixing seat (202). The first guide rail (201) is installed on the inner side of the first slider (103) on both sides. The guide rail fixing seat (202) is installed on the upper end of the first guide rail (201). The measuring rod (203) is installed on the lower end of the first guide rail (201). The left side of the guide rail fixing seat (202) is connected to the upper part of the spring (204) by a pivot. The lower part of the spring (204) is hinged to the left wall of the slider base (101). The grating (205) is installed on the upper part of the right wall of the first guide rail (201).
2. The grating module for multi-scenario use according to claim 1, characterized in that: The first fixing seat (102) is L-shaped.
3. A grating module for multi-scenario use according to claim 2, characterized in that: The slider base (101) and the first fixed base (102) form a static main frame.
4. A grating module for multi-scenario use according to claim 3, characterized in that: The middle position of the slider base (101) is on the same horizontal line as the middle position of the first slider (103).
5. A grating module for multi-scenario use according to claim 4, characterized in that: The first slider (103) and the reading head fixing seat (104) are correspondingly arranged, and the first slider (103) and the slider base (101) are fixedly connected.
6. A grating module for multi-scenario use according to claim 5, characterized in that: The first slider (103) and the first guide rail (201) are slidably connected.
7. A grating module for multi-scenario use according to claim 6, characterized in that: The grating (205) and the reading head holder (104) are respectively set up.
8. A grating module for multi-scenario use according to claim 7, characterized in that: The first guide rail (201) is fixedly connected to the measuring rod (203) and the guide rail fixing seat (202), and they are on the same horizontal line.