Insulated linear guide rail

Abstract

The utility model discloses an insulating linear guide rail which comprises a guide rail body, a first mounting hole is formed in the surface of the guide rail body, a sliding block is connected to the surface of the guide rail body in a sliding mode, and 45-degree bidirectional 90-degree grooves are formed in the two sides of the guide rail body and matched with the sliding block. According to the utility model, the guide rail, the first mounting hole, the first top plate, the first side sliding block, the first plastic wear-resistant block, the limiting guide rod, the guide hole, the first screw, the second mounting hole, the cover plate, the second screw, the first inner bolt, the first abutting hole, the second top plate, the second side sliding block, the third screw, the second inner bolt, the second abutting hole, the third mounting hole, the sliding block and the sliding groove are arranged; and a fourth mounting hole, a third top plate, a roller, a stud, a gasket and a fifth mounting hole are matched for use, so that the problem that an existing traditional sliding block linear guide rail is mostly made of metal materials, and although the existing traditional sliding block linear guide rail has relatively high mechanical strength, the use of the existing traditional sliding block linear guide rail in an environment needing electrical insulation is limited due to electrical conductivity is solved.

Description

Technical Field

[0001] This utility model belongs to the field of linear guide technology, and particularly relates to insulated linear guides. Background Technology

[0002] Traditional linear guides are mostly made of metal, which, while possessing high mechanical strength, limits their use in environments requiring electrical insulation due to their electrical conductivity. For example, in environments such as electronic component assembly lines and semiconductor manufacturing equipment, electromagnetic interference (EMI) and electrostatic discharge (ESD) protection are crucial. To address these issues, linear guides using electrically insulating materials have been designed. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides an insulated linear guide rail, which has the advantages of anti-static and electromagnetic interference protection. It solves the problem that most existing traditional slider linear guide rails are made of metal materials, which have high mechanical strength, but are limited in use in environments requiring electrical insulation due to their conductivity.

[0004] This utility model is implemented as follows: an insulated linear guide rail includes a guide rail, a first mounting hole is formed on the surface of the guide rail, a slider is slidably connected to the surface of the guide rail, and 45-degree bidirectional 90-degree grooves are formed on both sides of the guide rail, which cooperate with the slider.

[0005] In a preferred embodiment of this invention, the slider includes a first top plate, with first side sliders provided on both the front and rear sides of the bottom of the first top plate. A first plastic wear-resistant block is provided on the side of the first side slider near the guide rail. A limiting guide rod is fixedly connected to one side of the first plastic wear-resistant block. A guide hole for cooperating with the limiting guide rod is provided inside the first side slider. A first screw is provided on the top of the first top plate. There are six first screws, which are symmetrically distributed in pairs on the top of the first top plate. The threaded end of the first screw penetrates the first top plate and extends into the interior of the first side slider. A second mounting hole is provided on the top of the first top plate. The guide rail is made of materials such as POM, PTFE, and bakelite. The first top plate and the first side slider are made of POM, PTFE, or bakelite. The limiting guide rod is made of high-density engineering plastic.

[0006] As a preferred embodiment of the present invention, a cover plate is provided on both sides of the first top plate, and a second screw is provided on one side of the cover plate. The threaded end of the second screw passes through the cover plate and extends into the interior of the first side slider. Two first inner bolts are provided on the front side of the top of the first top plate. The threaded ends of the two first inner bolts pass through the first top plate and extend into the interior of the first side slider. A first abutting hole is provided on the top of the first side slider for use with the first inner bolts.

[0007] In a preferred embodiment of this invention, the slider further includes a second top plate. Second side sliders are provided on both the front and rear sides of the bottom of the second top plate. The surface of the second side sliders mates with the surface of the guide rail. Six third screws are provided on the top of the second top plate, symmetrically distributed in pairs. The threaded ends of the third screws penetrate the second top plate and extend into the interior of the second side sliders. Two second inner bolts are provided on the front side of the top of the second top plate. The threaded ends of the two second inner bolts penetrate the second top plate and extend into the interior of the second side sliders. A second abutment hole for mates with the second inner bolts is provided on the top of the second side slider. A third mounting hole is provided on the top of the second top plate. The second side slider is made of PTFE material.

[0008] As a preferred embodiment of the present invention, the slider includes a sliding block, the sliding block is integrally formed, the sliding block has a sliding groove inside, the inside of the sliding block is in contact with the surface of the guide rail, and a fourth mounting hole is provided at each of the four corners of the top of the sliding block.

[0009] As a preferred embodiment of this utility model, the slider further includes a third top plate, and rollers are provided at the four corners of the bottom of the third top plate. The rollers are movably connected to studs through bearings. Washers are fitted on the surface of the studs. The surface of the studs is threadedly connected to the inside of the third top plate. Fifth mounting holes are provided at the four corners of the top of the third top plate. The studs are made of stainless steel, the washers are made of engineering plastic, and the rollers and guide rails are made of the same material, namely engineering plastic and bakelite.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. Improved electrical insulation: Due to the electrical insulation properties of POM, Teflon (PTFE), PEEK and PP materials, stable linear motion is ensured in electrically sensitive environments such as electronic equipment and semiconductor manufacturing environments. By eliminating the conductivity of metallic materials, electromagnetic interference (EMI) and electrostatic discharge (ESD) problems can be prevented, greatly improving safety.

[0012] 2. Enhanced chemical and heat resistance: In particular, the high chemical and heat resistance of Teflon and PEEK materials provide high reliability in chemical processes or high-temperature environments. PEEK materials can maintain stable physical properties at temperatures exceeding 250°C and achieve long-term deformation-free operation in high-temperature environments. These characteristics ensure long-term durability in semiconductor production lines, pharmaceutical processes, chemical processing systems, etc.

[0013] 3. Improved durability and wear resistance: POM and PEEK materials have excellent durability and wear resistance. Even in high-frequency repetitive motion, their performance will not decrease. This solves the problem of accelerated wear of traditional metal guide rails after long-term use, helps to maintain accuracy and extend component life. Therefore, they can also perform reliably in equipment that requires precision manufacturing.

[0014] 4. Low friction and low noise: Due to the low coefficient of friction of Teflon (PTFE) material, it provides smooth movement and minimizes wear and noise caused by friction. It is highly advantageous in environments such as medical equipment or clean rooms where noise control is required. In addition, Teflon can maintain the stability of the slider while reducing friction, so as to achieve precise linear motion.

[0015] 5. Reduced weight and improved energy efficiency: Materials such as POM and PP are lighter than metals, which helps to reduce the weight of equipment and improve energy efficiency. This helps to reduce energy consumption and transportation and installation costs in industrial automation systems. In addition, the lightweighting of components helps to increase the operating speed of equipment and improve work efficiency.

[0016] 6. Improve economic efficiency and reduce costs: Compared with metal materials, POM and PP materials have lower raw material costs, making them suitable for large-scale production and reducing maintenance costs. PP materials are particularly economical and are very suitable for general industrial equipment that focuses on cost savings. During long-term use, the replacement cycle of parts is longer, which helps to save on maintenance costs.

[0017] 7. Suitable for various industrial environments: The guide rail can be made of a variety of materials and is suitable for different special environments (high temperature, chemical resistance, low noise, electrical insulation). For example, Teflon or PEEK materials can be selected in precision and clean environments such as electronic equipment assembly lines, semiconductor processes, and medical equipment manufacturing, while POM or PP materials can be selected in general mechanical equipment or automation systems. This makes it widely applicable to many industrial fields.

[0018] 8. Flexible design and applicability: The 45-degree bidirectional 90-degree groove structure and multiple material options enable customized designs based on existing equipment, and it can still handle complex movements with precision and efficiency. This breaks through the limitations of traditional guide rail systems, realizes multi-functional applications, and helps optimize equipment performance. Attached Figure Description

[0019] Figure 1 This utility model embodiment provides a schematic diagram of the first type of slider and guide rail cooperation;

[0020] Figure 2 This utility model provides a three-dimensional schematic diagram of a first type of slider;

[0021] Figure 3 This utility model embodiment provides a first type of exploded three-dimensional view of a slider;

[0022] Figure 4 This is a three-dimensional schematic diagram of a second type of slider provided in this embodiment of the utility model;

[0023] Figure 5 This utility model embodiment provides a second type of exploded three-dimensional view of a slider;

[0024] Figure 6 This utility model provides a third type of slider and guide rail cooperation diagram;

[0025] Figure 7 This utility model provides a third type of slider perspective diagram;

[0026] Figure 8 This utility model provides a fourth type of slider and guide rail cooperation diagram;

[0027] Figure 9 This utility model provides a fourth type of slider three-dimensional schematic diagram;

[0028] Figure 10 This utility model provides an exploded view of the roller, stud, and washer.

[0029] Figure 11 This is a cross-sectional view of the pre-tightening structure provided in this embodiment of the utility model.

[0030] In the diagram: 1. Guide rail; 2. First mounting hole; 3. First top plate; 4. First side slider; 5. First plastic wear-resistant block; 6. Limiting guide rod; 7. Guide hole; 8. First screw; 9. Second mounting hole; 10. Cover plate; 11. Second screw; 12. First inner bolt; 13. First abutment hole; 14. Second top plate; 15. Second side slider; 16. Third screw; 17. Second inner bolt; 18. Second abutment hole; 19. Third mounting hole; 20. Sliding block; 21. Sliding groove; 22. Fourth mounting hole; 23. Third top plate; 24. Roller; 25. Stud; 26. Washer; 27. Fifth mounting hole. Detailed Implementation

[0031] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0032] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0033] Example 1

[0034] like Figures 1 to 3As shown, the insulated linear guide provided in this embodiment of the present invention includes a guide rail 1, a first mounting hole 2 is provided on the surface of the guide rail 1, a slider is slidably connected to the surface of the guide rail 1, and 45-degree bidirectional 90-degree grooves are provided on both sides of the guide rail 1, which cooperate with the slider.

[0035] refer to Figure 1-3 The slider includes a first top plate 3. First side sliders 4 are provided on the front and rear sides of the bottom of the first top plate 3. A first plastic wear-resistant block 5 is provided on the side of the first side slider 4 near the guide rail 1. A limit guide rod 6 is fixedly connected to one side of the first plastic wear-resistant block 5. A guide hole 7 is opened inside the first side slider 4 to cooperate with the limit guide rod 6. A first screw 8 is provided on the top of the first top plate 3. There are six first screws 8, which are symmetrically distributed in pairs on the top of the first top plate 3. The threaded end of the first screw 8 passes through the first top plate 3 and extends into the interior of the first side slider 4. A second mounting hole 9 is opened on the top of the first top plate 3. The guide rail 1 is made of materials such as POM, PTFE, and bakelite. The first top plate 3 and the first side slider 4 are made of POM, PTFE, or bakelite. The limit guide rod 6 is made of high-density engineering plastic.

[0036] Both sides of the first top plate 3 are provided with cover plates 10. A second screw 11 is provided on one side of the cover plate 10. The threaded end of the second screw 11 passes through the cover plate 10 and extends into the interior of the first side slider 4. Two first inner bolts 12 are provided on the front side of the top of the first top plate 3. The threaded ends of the two first inner bolts 12 pass through the first top plate 3 and extend into the interior of the first side slider 4. A first abutting hole 13 is opened on the top of the first side slider 4 to cooperate with the first inner bolts 12.

[0037] The above-mentioned scheme employs the following: the guide rail 1 is made of materials such as POM, PTFE, and bakelite, which provide high wear resistance and a low coefficient of friction, ensuring that performance does not degrade after long-term use. The first top plate 3 and the first side slider 4 are made of POM, PTFE, or bakelite to achieve maximum durability, and different materials can be selected according to environmental conditions. The first screw 8 that fixes the first top plate 3 and the first side slider 4 can be a PEEK bolt or a SUS stainless steel bolt to ensure excellent strength and insulation performance. When using stainless steel bolts, the head of the first screw 8 should be 0.5mm below the upper surface of the first top plate 3. The above measures ensure electrical insulation, thus achieving stable electrical insulation without additional insulation measures. The first inner bolt 12 is a necessary component for the pre-tightening adjustment of the first side slider 4 on the front side. After the sliding pre-tightening force of the guide rail 1, the first top plate 3, and the first side slider 4 is adjusted, if there is a possibility of insulation problems, the gap should be precisely adjusted first, and then the remaining four second screws 11 should be firmly locked. After this fixing operation is completed, the component can be safely removed without affecting the overall structural stability and insulation performance. Through this design, users can ensure the stability and reliability of the entire structure while ensuring insulation.

[0038] The first plastic wear-resistant block 5 is made of high-density engineering plastic, which has both excellent durability and lightweight design. This component is fixed by inserting the limiting guide rod 6 into the guide hole 7, thereby effectively preventing the first plastic wear-resistant block 5 from falling off. In addition, in order to deal with the problem of possible breakage or falling off of the limiting guide rod 6 during long-term use, cover plates 10 are added at the front and rear positions of the limiting guide rod 6. This design further ensures the robustness and reliability of the component, while improving the stability and safety of the product in various complex environments.

[0039] Of the two first side sliders 4, the rear first side slider 4 is designed based on the first top plate 3 and the front first side slider 4. The front first side slider 4 is designed to be narrower by cooperating with the protruding slot of the first top plate 3. In this way, when the first inner bolt 12 is tightened, the front first side slider 4 will be pushed, thereby applying an appropriate preload to the guide rail 1.

[0040] The first plastic wear-resistant block 5 is made of high-density engineering plastic and is designed as a component that is most likely to wear out. This design can effectively protect the guide rail 1 and the slider, preventing them from wearing out directly and thus extending the service life of the main components.

[0041] Example 2

[0042] like Figures 4 to 5 As shown, the insulated linear guide provided in this embodiment of the present invention includes a guide rail 1, a first mounting hole 2 is provided on the surface of the guide rail 1, a slider is slidably connected to the surface of the guide rail 1, and 45-degree bidirectional 90-degree grooves are provided on both sides of the guide rail 1, which cooperate with the slider.

[0043] refer to Figure 4-5 The slider also includes a second top plate 14. Second side sliders 15 are provided on both the front and rear sides of the bottom of the second top plate 14. The surface of the second side slider 15 mates with the surface of the guide rail 1. Six third screws 16 are provided on the top of the second top plate 14, symmetrically distributed in pairs. The threaded ends of the third screws 16 penetrate the second top plate 14 and extend into the interior of the second side slider 15. Two second inner bolts 17 are provided on the front side of the top of the second top plate 14. The threaded ends of the two second inner bolts 17 penetrate the second top plate 14 and extend into the interior of the second side slider 15. A second abutment hole 18 is provided on the top of the second side slider 15 to mate with the second inner bolts 17. A third mounting hole 19 is provided on the top of the second top plate 14. The second side slider 15 is made of PTFE material.

[0044] While retaining the same functions and component configuration as in Example 1, Example 2 improves overall efficiency through some differentiated designs. Example 2 eliminates the first plastic wear-resistant block 5 used in Example 1 and replaces it with the second side slider 15 directly contacting the guide rail 1 to achieve sliding motion. This design not only reduces the number of components and simplifies the production process and assembly flow, but also reduces maintenance costs, while improving production efficiency and cost-effectiveness.

[0045] The design of the second side slider 15 takes into full consideration sliding performance and durability. It is made of PTFE (polytetrafluoroethylene) material with slightly lower strength than the guide rail 1. PTFE material has an extremely low coefficient of friction and excellent sliding performance. This characteristic enables the second side slider 15 to achieve smooth and stable sliding movement. At the same time, this design effectively reduces the risk of surface wear of the guide rail 1 and maintains good sliding performance and stability during long-term use.

[0046] These features make it particularly suitable for cost-effective industrial environments. The simplified structure not only improves product usability but also expands its applicability in a variety of application scenarios, further enhancing the product's market competitiveness.

[0047] Example 3

[0048] like Figures 6 to 7 As shown, the insulated linear guide provided in this embodiment of the present invention includes a guide rail 1, a first mounting hole 2 is provided on the surface of the guide rail 1, a slider is slidably connected to the surface of the guide rail 1, and 45-degree bidirectional 90-degree grooves are provided on both sides of the guide rail 1, which cooperate with the slider.

[0049] refer to Figure 6-7 The slider includes a sliding block 20, which is integrally formed. The sliding block 20 has a sliding groove 21 inside. The inside of the sliding block 20 is in contact with the surface of the guide rail 1. The four corners of the top of the sliding block 20 are provided with fourth mounting holes 22.

[0050] This embodiment of the slider adopts an innovative integrated design, integrating all the main components into a single sliding block 20, which greatly simplifies the complex component structure. This design focuses on simplicity and efficiency, eliminating redundant parts and assembly steps in traditional designs, thereby significantly improving production efficiency. Although this design does not include a pre-tightening adjustment function, through optimization, it can significantly reduce processing and assembly costs, while greatly shortening manufacturing time. In addition, product replacement becomes very simple and quick, facilitating later maintenance and use.

[0051] In particular, the four bolt positions for securing the components are precisely designed to ensure the structural strength of the product. Under suitable environmental conditions, if insulation is not required, stainless steel inserts can be embedded in the threaded holes to enhance the strength of the engineering plastic threaded portions. This design provides additional reliability and flexibility for industrial applications that require high strength and durability.

[0052] In summary, this embodiment achieves superior assembly and maintenance efficiency through simplified structure, while also offering flexibility and stability under diverse conditions, providing a more efficient and reliable solution for industrial environments.

[0053] Example 4

[0054] like Figures 8 to 10 As shown, the insulated linear guide provided in this embodiment of the present invention includes a guide rail 1, a first mounting hole 2 is provided on the surface of the guide rail 1, a slider is slidably connected to the surface of the guide rail 1, and 45-degree bidirectional 90-degree grooves are provided on both sides of the guide rail 1, which cooperate with the slider.

[0055] refer to Figure 8-10 The slider also includes a third top plate 23. Rollers 24 are provided at the four corners of the bottom of the third top plate 23. The inside of the rollers 24 is movably connected to studs 25 through bearings. Washers 26 are fitted on the surface of the studs 25. The surface of the studs 25 is threadedly connected to the inside of the third top plate 23. Fifth mounting holes 27 are provided at the four corners of the top of the third top plate 23. The studs 25 are made of stainless steel, and the washers 26 are made of engineering plastic. The rollers 24 and the guide rail 1 are made of the same material, namely engineering plastic and bakelite.

[0056] This embodiment presents a novel insulated linear guide 1 based on a roller 24 drive mechanism, designed to overcome the limitations of the surface-to-surface contact structure in the designs of Embodiments 1, 2, and 3. Traditional designs generate excessive heat during high-speed operation due to the high coefficient of friction, leading to decreased durability. Furthermore, they significantly increase the power burden when handling heavy loads, thereby reducing efficiency. To address these issues, this embodiment employs a roller 24 drive mechanism, achieving higher power efficiency by reducing friction and heat generation.

[0057] All components designed in this embodiment use optimal materials such as engineering plastics and bakelite, and have been carefully selected according to different functions and requirements. In particular, the material selection of roller 24 is based on the material of guide rail 1 to ensure consistency, while stud 25 is made of stainless steel to provide higher wear resistance and strength. Although stainless steel is strong and reliable, special design treatment is required to ensure electrical insulation.

[0058] The stud 25 is made of stainless steel and is designed to ensure 100% electrical insulation. If there is a potential insulation risk, it can be further enhanced by a Teflon coating. This additional treatment effectively improves safety and reliability, ensuring the product’s stable performance under various complex conditions.

[0059] In addition, the washer 26 is made of engineering plastic material and is placed between the third top plate 23 and the roller 24 to reduce the coefficient of friction generated by the thrust load. This design can not only effectively distribute the load, but also minimize the power loss caused by friction, thereby extending the product's service life.

[0060] This embodiment breaks through the limitations of traditional structures, providing more stable and efficient performance under high-speed operation and high-load environments. This innovative design provides a reliable and efficient solution for various industrial environments and is a trustworthy technological improvement.

[0061] This utility model is applicable to various industrial environments, and is particularly suitable for the following usage environments and application fields:

[0062] 1. Electronic equipment and semiconductor manufacturing environment: PEEK and Teflon materials have high heat resistance and chemical resistance, perform well in high-temperature environments, are suitable for semiconductor production lines with high precision linear motion requirements, and have the functions of preventing electromagnetic interference and static electricity.

[0063] 2. Chemical and pharmaceutical processes: Teflon and PEEK materials are resistant to chemical corrosion and can be used in environments with frequent chemical handling, especially suitable for pharmaceutical production lines in high-temperature environments.

[0064] 3. Medical Equipment and Cleanroom Environments: POM and Teflon have low coefficients of friction and low noise, and minimize contamination, making them ideal for providing precise linear guides in cleanrooms.1 These materials also play a crucial role in high-precision medical equipment requiring electrical insulation.

[0065] 4. Automotive and Aerospace Industries: PEEK materials possess high mechanical strength and heat resistance, making them suitable for high-temperature, high-strength automotive and aerospace mechanical components. Their lightweight and high durability contribute to improved fuel efficiency.

[0066] 5. Electrical and electronic equipment: POM and Teflon are ideal choices for equipment requiring electrical insulation. They can provide stable mechanical properties in the absence of electrical interference, especially in the drive components of electrical equipment where low friction characteristics are critical.

[0067] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0068] 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. Insulated linear guide, characterized in that: Including guide rail (1), the surface of guide rail (1) is provided with first mounting hole (2), the surface of guide rail (1) is slidably connected with slider, both sides of guide rail (1) are provided with 45 degrees two-way 90 degrees groove, and with slider are matched.

2. The insulated linear guide rail of claim 1, wherein: The slider includes first top plate (3), the front side and rear side of the bottom of first top plate (3) are provided with first side slider (4), the side close to guide rail (1) of first side slider (4) is provided with first plastic wear-resistant block (5), one side of first plastic wear-resistant block (5) is fixedly connected with limiting guide rod (6), the inside of first side slider (4) is provided with guide hole (7) used in cooperation with limiting guide rod (6), the top of first top plate (3) is provided with first screw (8), the number of first screw (8) is six, and two two symmetry distribution in the top of first top plate (3), the threaded end of first screw (8) penetrates first top plate (3) and extends to the inside of first side slider (4), the top of first top plate (3) is provided with second mounting hole (9), limiting guide rod (6) adopts high-density engineering plastic material.

3. The insulated linear guide rail of claim 2, wherein: The side of cover plate (10) is provided with second screw (11), the threaded end of second screw (11) penetrates cover plate (10) and extends to the inside of first side slider (4), the front side of the top of first top plate (3) is provided with two first inner bolts (12), the threaded end of two first inner bolts (12) penetrates first top plate (3) and extends to the inside of first side slider (4), the top of first side slider (4) is provided with first resistance hole (13) used in cooperation with first inner bolt (12).

4. The insulated linear guide rail of claim 1, wherein: The slider also includes second top plate (14), the front side and rear side of the bottom of second top plate (14) are provided with second side slider (15), the surface of second side slider (15) is used in cooperation with the surface of guide rail (1), the top of second top plate (14) is provided with third screw (16), the number of third screw (16) is six, and two two symmetry distribution in the top of second top plate (14), the threaded end of third screw (16) penetrates second top plate (14) and extends to the inside of second side slider (15), the front side of the top of second top plate (14) is provided with two second inner bolts (17), the threaded end of two second inner bolts (17) penetrates second top plate (14) and extends to the inside of second side slider (15), the top of second side slider (15) is provided with second resistance hole (18) used in cooperation with second inner bolt (17), the top of second top plate (14) is provided with third mounting hole (19), second side slider (15) is made of PTFE material.

5. The insulated linear guide rail of claim 1, wherein: The slider comprises a sliding block (20) which is integrally formed, an inner part of the sliding block (20) is provided with a sliding groove (21), the inner part of the sliding block (20) is in surface contact with the guide rail (1), and fourth mounting holes (22) are formed in the four corners of the top of the sliding block (20).

6. The insulated linear guide rail of claim 1, wherein: The slider further comprises a third top plate (23), the four corners of the bottom of the third top plate (23) are provided with rollers (24), the inner part of the roller (24) is movably connected with a stud (25) through a bearing, the surface of the stud (25) is sleeved with a gasket (26), the surface of the stud (25) is in threaded connection with the inner part of the third top plate (23), fifth mounting holes (27) are formed in the four corners of the top of the third top plate (23), the stud (25) is made of stainless steel, and the gasket (26) is made of engineering plastic material.

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