Magnetic grid track applied to linear motor module
By designing the support bars and fixing blocks of the magnetic grating track, the complexity of installing and the inconvenience of disassembling the magnetic grating ruler on the linear motor module were solved, achieving convenient installation and stable fixation, and improving the practicality and accuracy of the magnetic grating ruler.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FASTER-MOTION LINEAR MOTOR CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-05-05
AI Technical Summary
The existing method of installing magnetic scales on linear motor modules is complicated and inconvenient to disassemble, resulting in operational difficulties and economic losses due to installation failures.
A magnetic grating track was designed, including a support bar, a mounting groove, a limiting groove, and a fixing block. The magnetic grating ruler can be conveniently installed and securely fixed by the combination of arc chamfers and limiting protrusions.
This improves the ease of installation and stability of the magnetic scale, reduces the risk of installation failure, and enhances the debugging convenience of the linear motor module.
Smart Images

Figure CN224201418U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of magnetic grating ruler technology, specifically relating to a magnetic grating track applied to a linear motor module. Background Technology
[0002] A magnetic scale is a high-precision linear displacement measuring element. Its working principle is to determine the position of a moving part by reading the magnetic scale information on the magnetic scale. It mainly consists of a magnetic scale and a magnetic head. It has the characteristics of strong anti-interference ability, convenient installation and large measurement range. It is widely used in CNC machine tools, automated production lines and other equipment that require precise displacement detection.
[0003] When installing a magnetic scale on the surface of a linear motor module, first ensure that the module surface is flat and clean. Fix the magnetic scale along the direction of movement of the module and ensure that its parallelism error with the motor's axis of motion is within the allowable range. Then, install the magnetic head on the moving part of the motor, keeping an appropriate gap between the magnetic head and the magnetic scale. Finally, connect the signal line and debug to ensure that the magnetic head can accurately read the position signal of the magnetic scale, thereby achieving precise measurement of the linear motor's displacement.
[0004] Existing magnetic scales are generally installed using glue, which firmly fixes the magnetic scale to the surface of the linear motor module. However, this glue-based installation method not only requires extremely high operational precision during installation and leaves little room for error for the operator, but also makes it difficult to disassemble the magnetic scale after installation. This inconvenience often causes operational difficulties for the operator, especially during the commissioning of the linear motor module. Utility Model Content
[0005] The purpose of this invention is to provide a magnetic grating track for use in linear motor modules, in order to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a magnetic grating track for a linear motor module, comprising a support bar, an installation groove inside the support bar, an arc-shaped chamfer at the opening of the installation groove, a limit groove on the lower surface of the installation groove, a magnetic grating ruler fitted inside the installation groove, an installation strip at the bottom of the magnetic grating ruler, a limit protrusion at the bottom of the installation strip, and fixing blocks fitted at the front and rear ends of the support bar.
[0007] In a preferred embodiment, the fixing block is provided with an installation component inside. The installation component includes a snap-fit groove, an abutment block, a threaded hole, a bolt, and an auxiliary groove. The snap-fit groove is opened on the side of the fixing block near the support bar, and the abutment block is fixedly connected inside the snap-fit groove.
[0008] In a preferred embodiment, the auxiliary groove is formed at the bottom of the fixing block, the threaded hole is formed at the top of the fixing block and extends through the auxiliary groove, and the bolt is threaded into the inside of the threaded hole.
[0009] In a preferred embodiment, the bottom of the support strip has semi-circular grooves symmetrically distributed on both sides, the cross-section of the support strip is trapezoidal, the shape of the mounting strip is adapted to the shape of the mounting groove, and the shape of the limiting protrusion is adapted to the shape of the limiting groove.
[0010] In a preferred embodiment, the magnetic scale is located at the opening of the mounting groove, and the magnetic scale is fixedly connected to the mounting strip.
[0011] In a preferred embodiment, the snap-fit groove is adapted to the shape of the support bar, and the abutment block is adapted to the shape of the mounting groove.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This utility model, by opening an installation groove, an arc-shaped chamfer, and a limiting groove inside the support bar, not only facilitates the installation and disassembly of the magnetic scale by the staff, effectively improving the convenience of magnetic scale installation and making it easier for the staff to debug the linear motor module, but also effectively improves the accuracy and stability of magnetic scale installation by limiting the magnetic scale through the installation groove and the limiting groove, avoiding magnetic scale installation failure and economic losses.
[0014] The installation components of this utility model enable the magnetic grating track to effectively limit and fix the magnetic grating ruler, improving the stability and firmness of the magnetic grating ruler installation. At the same time, it also makes it convenient for workers to install the magnetic grating track on the surface of the linear motor module, thereby effectively improving the practicality and convenience of the magnetic grating track. Attached Figure Description
[0015] Figure 1 This is a three-dimensional front view schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the overall three-dimensional bottom view of the present invention;
[0017] Figure 3 This is an exploded three-dimensional structural diagram of the support bar and other components of this utility model;
[0018] Figure 4 This is a three-dimensional structural diagram of the fixing block component of this utility model.
[0019] In the diagram: 1. Support bar; 2. Mounting groove; 3. Chamfered corner; 4. Limiting groove; 5. Magnetic scale; 6. Mounting bar; 7. Limiting protrusion; 8. Semicircular groove; 9. Fixing block; 901. Snap-fit groove; 902. Abutment block; 903. Threaded hole; 904. Bolt; 905. Auxiliary groove. Detailed Implementation
[0020] The present invention will be further described below with reference to the embodiments.
[0021] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.
[0022] Please see Figure 1-4 This utility model provides a magnetic grating track for a linear motor module, including a support bar 1. The support bar 1 has an installation groove 2 inside, and the opening of the installation groove 2 has an arc-shaped chamfer 3. The lower surface of the installation groove 2 has a limiting groove 4. A magnetic grating ruler 5 is sleeved inside the installation groove 2. The bottom of the magnetic grating ruler 5 has an installation strip 6, and the bottom of the installation strip 6 has a limiting protrusion 7. Fixing blocks 9 are sleeved at the front and rear ends of the support bar 1. The support bar 1 serves as the main structure of the magnetic grating track. The installation groove 2 provides space for the installation of the magnetic grating ruler 5. The arc-shaped chamfer 3 facilitates the display of the surface structure of the magnetic grating ruler 5. The limiting groove (4) cooperates with the limiting protrusion (7) at the bottom of the installation strip (6) to prevent the magnetic grating ruler (5) from lateral displacement and improve stability. The fixing blocks 9 are used to fix the support bar 1 to the surface of the linear motor module. In the process of using this utility model, firstly, the fixing block 9 at one end is installed, then the support bar 1 is inserted into the fixing block 9, and then the magnetic scale 5 with the mounting strip 6 is inserted into the mounting groove 2. The mounting groove 2 and the limiting groove 4 can limit and fix the mounting strip 6, while the arc chamfer 3 facilitates the data feedback of the magnetic scale 5. After the magnetic scale 5 is fully inserted into the mounting groove 2, the fixing block 9 is sleeved on the other end of the support bar 1, thus completing the installation of the entire magnetic track and the magnetic scale 5. This utility model, by opening the mounting groove 2, the arc chamfer 3, and the limiting groove 4 inside the support bar 1, not only facilitates the installation and disassembly of the magnetic scale 5 by the staff, effectively improving the convenience of the installation of the magnetic scale 5 and facilitating the debugging of the linear motor module, but also, through the limiting of the magnetic scale 5 by the mounting groove 2 and the limiting groove 4, effectively improves the accuracy and stability of the installation of the magnetic scale 5, avoiding installation failure and economic losses.
[0023] Specifically, such as Figure 1 and Figure 4As shown, the mounting block 9 has an internal mounting assembly, which includes a snap-fit groove 901, an abutment block 902, a threaded hole 903, a bolt 904, and an auxiliary groove 905. The snap-fit groove 901 is located on the side of the mounting block 9 near the support bar 1, and the abutment block 902 is fixedly connected inside the snap-fit groove 901. The auxiliary groove 905 is located at the bottom of the mounting block 9, and the threaded hole 903 is located at the top of the mounting block 9 and extends through the auxiliary groove 905. The bolt 904 is threadedly connected inside the threaded hole 903.
[0024] Bolt 904 passes through threaded hole 903 and is threaded to the surface of linear motor module to complete the installation of fixing block 9. Fixing block 9 can be sleeved on the outside of support bar 1 through snap-fit groove 901, and can abut against both ends of magnetic scale 5 through abutment block 902, improving the stability and firmness of magnetic scale 5 installation. The opening of auxiliary groove 905 facilitates the deformation of fixing block 9 by continuous movement of bolt 904, thereby driving the upper surface of support bar 1 to clamp magnetic scale 5. To install the component, the operator first uses bolt 904 to thread through threaded hole 903 and then thread it to the surface of linear motor module to complete the installation of fixing block 9. Then the support bar is installed. 1. Insert the magnetic ruler 5 into the slot 901 and complete the installation. Then, the worker attaches the fixing block 9 to the other end of the support bar 1 and connects the fixing block 9 to the surface of the linear motor module using bolts 904. After that, the worker can further tighten the bolts 904, which apply downward pressure to the fixing block 9, causing the fixing block 9 to compress downward. During the downward compression, since the fixing block 9 is fitted on the outside of the support bar 1, it also applies pressure to both sides of the support bar 1. Combined with the semi-circular groove 8 at the bottom of the support bar 1, the upper parts of both sides of the support bar 1 move closer to each other, thus enabling the arc-shaped chamfer 3 on both sides of the support bar 1 to clamp and fix the magnetic ruler 5. The design of the installation component of this utility model enables the magnetic rail to effectively limit and fix the magnetic ruler 5, improving the stability and firmness of the installation of the magnetic ruler 5. At the same time, it also makes it convenient for workers to install the magnetic rail on the surface of the linear motor module, thereby effectively improving the practicality and convenience of the magnetic rail.
[0025] Specifically, such as Figure 1 and Figure 2 As shown, the bottom of the support bar 1 has semi-circular grooves 8 symmetrically distributed on both sides. The cross-section of the support bar 1 is trapezoidal. The shape of the mounting bar 6 matches the shape of the mounting groove 2, and the shape of the limiting protrusion 7 matches the shape of the limiting groove 4. The cross-section of the support bar 1 is trapezoidal. When subjected to pressure, the upper parts of its two sides will move closer to each other. The semi-circular grooves 8 facilitate the separation of the bottom parts of the two sides of the support bar 1.
[0026] The magnetic scale 5 is located at the opening of the mounting slot 2, which facilitates the magnetic scale 5 to feed back data to external equipment. The magnetic scale 5 is also fixedly connected to the mounting strip 6, which makes it convenient for staff to replace and install the magnetic scale 5.
[0027] Specifically, such as Figure 4 As shown, the snap-fit groove 901 is adapted to the shape of the support bar 1, which improves the firmness and stability of the support bar 1 installation, and the abutment block 902 is adapted to the shape of the mounting groove 2.
[0028] Working principle and usage process of this utility model:
[0029] When using the magnetic grating track applied to the linear motor module, first install the fixing block 9 at one end, then insert the support bar 1 into the inside of the fixing block 9, and then insert the magnetic grating ruler 5 with the mounting bar 6 installed into the inside of the mounting groove 2. The mounting groove 2 and the limiting groove 4 can limit and fix the mounting bar 6, and the arc chamfer 3 can facilitate the magnetic grating ruler 5 to provide data feedback. After the magnetic grating ruler 5 is fully inserted into the mounting groove 2, the fixing block 9 is sleeved on the other end of the support bar 1 to complete the installation of the entire magnetic grating track and the magnetic grating ruler 5.
[0030] After this, the staff can further tighten the bolt 904, so that the bolt 904 applies downward pressure to the fixing block 9, causing the fixing block 9 to compress downward. During the downward pressing process, since the fixing block 9 is sleeved on the outside of the support bar 1, it will also apply pressure to both sides of the support bar 1. Combined with the semi-circular groove 8 at the bottom of the support bar 1, the upper parts of both sides of the support bar 1 will move closer to each other, so that the two sides of the support bar 1 can drive the arc chamfer 3 to clamp and fix the magnetic grid ruler 5.
[0031] Although embodiments of the present invention 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 invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A magnetic grating track for use in a linear motor module, comprising a support bar (1), characterized in that: The support bar (1) has an installation groove (2) inside. The opening of the installation groove (2) is provided with an arc-shaped chamfer (3). The lower surface of the installation groove (2) is provided with a limiting groove (4). A magnetic grid ruler (5) is sleeved inside the installation groove (2). An installation bar (6) is provided at the bottom of the magnetic grid ruler (5). A limiting protrusion (7) is provided at the bottom of the installation bar (6). Fixing blocks (9) are sleeved at the front and rear ends of the support bar (1).
2. The magnetic grating track for use in a linear motor module according to claim 1, characterized in that: The fixing block (9) is provided with an installation component inside. The installation component includes a snap-fit groove (901), an abutment block (902), a threaded hole (903), a bolt (904), and an auxiliary groove (905). The snap-fit groove (901) is opened on the side of the fixing block (9) near the support bar (1), and the abutment block (902) is fixedly connected to the inside of the snap-fit groove (901).
3. A magnetic grating track for use in a linear motor module according to claim 2, characterized in that: The auxiliary groove (905) is opened at the bottom of the fixing block (9), the threaded hole (903) is opened at the top of the fixing block (9) and passes through the auxiliary groove (905), and the bolt (904) is threaded into the inside of the threaded hole (903).
4. A magnetic grating track for use in a linear motor module according to claim 1, characterized in that: The bottom of the support bar (1) is provided with semi-circular grooves (8) symmetrically distributed from left to right. The cross-section of the support bar (1) is trapezoidal. The shape of the mounting bar (6) is adapted to the shape of the mounting groove (2). The shape of the limiting protrusion (7) is adapted to the shape of the limiting groove (4).
5. A magnetic grating track for use in a linear motor module according to claim 1, characterized in that: The magnetic scale (5) is located at the opening of the mounting groove (2), and the magnetic scale (5) is fixedly connected to the mounting strip (6).
6. A magnetic grating track for use in a linear motor module according to claim 2, characterized in that: The snap-fit groove (901) is adapted to the shape of the support bar (1), and the abutment block (902) is adapted to the shape of the mounting groove (2).