A cage assembly on a linear module and a slider

Abstract

The application relates to a cage assembly and a slider on a linear module, which comprises a cage body, the cage body further comprising a pair of oppositely arranged positioning frames, an inner circulating raceway part formed on the outer end surface of the positioning frame, and an upper support, a middle support and a lower support arranged between the pair of positioning frames; wherein the middle support is connected at the bottom of the pair of positioning frames, the upper support and the lower support are symmetrically connected at the two sides of the positioning frame along the middle support, the bottom surface of the upper support and the bottom surface of the lower support are arranged in parallel along the cross section of the positioning frame, the bottom surface of the middle support is arranged in spatial parallel with the bottom surface of the upper support and the bottom surface of the lower support, the upper support and the middle support, and the lower support and the middle support are all formed with inner sliding grooves matched with the inner circulating raceway part, the cage assembly is divided into two parts, one cage body and one limiting strip, the structure is optimized to facilitate assembly, the application is particularly suitable for large sliders, and the problem that it is difficult to open the mold for injection molding is avoided.

Description

Technical Field

[0001] This invention relates to the field of slider technology, and more particularly to a cage assembly and slider for a linear module. Background Technology

[0002] Linear guideways are widely used in linear reciprocating motion applications, capable of withstanding a certain amount of torque and achieving high-precision linear motion under high loads. In traditional slider designs, the cage assembly typically employs a relatively simple structure, such as a single, single-piece cage. This leads to problems such as ball or roller misalignment or detachment during high-speed operation, affecting the working stability and lifespan of the slider and even the entire linear module. Furthermore, traditional cage assemblies are inconvenient to install and maintain, failing to meet the demands of modern industry for efficiency and convenience.

[0003] The existing Chinese patent publication number CN113202867A discloses an integrated cage for linear modules. This cage integrates the inner circulation, upper cage component, lower cage component, and middle cage component into one piece, avoiding assembly errors that occur when the components are spliced ​​together. This results in smooth ball bearing operation and a long service life, thus solving the aforementioned problems.

[0004] However, this patent mainly targets small sliders, and its design has some shortcomings for large sliders. First, the uniformity of the roller support and cage fixing points needs further optimization. In large sliders, the uniformity of the roller support and fixing points is crucial to the slider's operational stability and lifespan. If the support points are not evenly distributed, the rollers will experience uneven stress during movement, which can easily lead to problems such as misalignment and accelerated wear, thus affecting the overall performance and lifespan of the slider. Second, the structure of the cage assembly is relatively complex. Although the one-piece molded cage reduces assembly errors, it faces many challenges in mold design and injection molding. The complex structure increases the complexity of the mold, which may lead to high mold manufacturing costs, inconvenient mold opening during injection molding, and long production cycles. Summary of the Invention

[0005] The present invention aims to solve the problems existing in the prior art by providing a cage assembly and slider for linear modules, optimizing the uniformity of roller support and cage fixing points of large-size sliders, improving the running stability and service life of sliders, and simplifying the assembly process to improve production efficiency.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: the cage assembly on this linear module includes: a frame body, the frame body further includes a pair of oppositely arranged positioning frames, an inner circulation raceway formed on the outer end face of the positioning frames, and an upper support, a middle support and a lower support disposed between the pair of positioning frames.

[0007] The middle support is connected to the bottom of a pair of positioning frames. The upper and lower supports are symmetrically connected to both sides of the positioning frames along the middle support. The bottom surfaces of the upper and lower supports are parallel to the cross-section of the positioning frames. The bottom surface of the middle support is spatially parallel to the bottom surfaces of the upper and lower supports. The upper and middle supports, as well as the lower and middle supports, each have an inner groove that mates with the inner circulation raceway. The two sides of the inner groove are parallel to each other.

[0008] The limiting strip rests on the inner side of the central support, and the two ends of the limiting strip abut against the positioning frames at both ends of the frame.

[0009] Preferably, guide grooves are formed on both the upper and lower sides of the inner slide groove. The guide grooves are used to connect with the outer guide sleeve and guide the guide sleeve and the rollers installed on the guide sleeve to move on the inner slide groove.

[0010] Preferably, a connecting groove is provided on the inner side of the central support, the upper and lower sides of the connecting groove are inclined in a direction away from each other, and limit blocks are provided at both ends of the connecting groove. The bottom sides of the limit strip are provided with first limiting parts that match the upper and lower sides of the connecting groove, and the bottom ends of the limit strip are provided with limiting grooves that match the limiting blocks. The limiting grooves are connected to the corresponding limiting blocks, and the first limiting parts are abutted against the corresponding groove sides.

[0011] Preferably, the top of the limiting strip is provided with a connecting part, and the two sides of the connecting part are respectively provided with second limiting parts that are inclined to both sides, and the second limiting parts are used to fit with the outer slider body.

[0012] Preferably, a pair of guide grooves are provided on the inner side of the middle bracket, respectively located on both sides of the connecting groove. The first limiting part is close to the groove edge of the connecting groove and extends out of the guide groove on the corresponding side of the groove edge and the guide groove to form the inner sliding groove side. The connection between the upper bracket and the positioning frame and the connection between the lower bracket and the positioning frame form the guide groove on the other side of the inner sliding groove.

[0013] Preferably, both ends of the central support and the limiting strip resting on it are provided with short threaded holes, and the middle position of the central support and the limiting strip resting on it is provided with a long threaded hole.

[0014] Preferably, the positioning frame is provided with a pair of internal circulation through holes symmetrically distributed along the central support, and the internal circulation through holes are connected to the internal circulation raceway.

[0015] Preferably, the inner circulation raceways on a pair of oppositely arranged positioning frames are arranged in an alternating orientation.

[0016] The present invention also provides a slider to solve the above-mentioned technical problems, including the cage assembly on a linear module as described above, and further including a slider body, cover plates installed at the left and right ends of the slider body, and an inner circulation end cover. The limiting strip and the frame are sequentially installed on the slide groove side wall of the slider body, the positioning frame abuts against the end wall of the slider body, and the inner circulation end cover is installed on the inner circulation raceway. The cover plate is connected to the end wall of the slider body to fix the inner circulation end cover.

[0017] Preferably, the slider body has an assembly groove on the side wall of the slide groove, and the slider body has positioning grooves at both ends for installing locking nuts and communicating with the assembly groove. The limiting strip and the middle bracket are installed on the assembly groove and connected to the locking nuts by bolts. The limiting strip and the middle bracket are connected to the slider body by long bolts.

[0018] The present invention has the following beneficial effects:

[0019] 1. This invention divides the cage assembly into two parts: a frame and a limiting strip. The optimized structure facilitates assembly and is particularly suitable for large sliders. It also avoids the problem of difficult mold opening in injection molding and ensures smooth movement of the rollers on the outer raceway. In particular, the design of the inner slide groove and guide groove makes the movement of the rollers in the guide sleeve more stable, reduces wear, and extends the service life of the slider.

[0020] 2. A pair of internal circulation through holes on the positioning frame are connected to the internal circulation raceway, which optimizes the movement path of the rollers. Combined with the design of the inner slide groove and guide groove, it ensures smooth flow of the rollers on the outer raceway, reduces wear, and extends the service life of the slider.

[0021] 3. The cage assembly is integrated into the slider, including the slider body, the cover plates installed on the left and right ends of the slider body, and the inner circulation end cover. This structural combination makes the overall performance of the slider superior and ensures the stable operation of the slider under high load and high precision requirements. Attached Figure Description

[0022] Figure 1 This is a top view of the cage assembly in Embodiment 1;

[0023] Figure 2 This is a schematic diagram of the frame structure in Embodiment 1.

[0024] Figure 3 This is a schematic diagram of the inner groove in this embodiment.

[0025] Figure 4 This is a cross-sectional view of the cage assembly in Embodiment 1.

[0026] Figure 5 This is a bottom view of the limiting strip in Embodiment 1;

[0027] Figure 6 This is a schematic diagram of the slider structure in Embodiment 2;

[0028] Figure 7 This is an exploded view of the slider structure in Embodiment 2.

[0029] Figure 8 This is a schematic diagram of the assembly groove in Embodiment 2;

[0030] Figure 9 This is an assembly drawing of the cage assembly and guide sleeve in this second embodiment.

[0031] Explanation of reference numerals in the attached figures:

[0032] 10. Frame; 11. Limiting strip; 12. Short threaded hole; 13. Long threaded hole; 100. Positioning frame; 101. Inner circulation raceway; 102. Upper support; 103. Middle support; 104. Lower support; 105. Inner slide groove; 106. Guide groove; 107. Connecting groove; 108. Limiting block; 109. Inner circulation through hole; 110. First limiting part; 111. Limiting groove; 112. Connecting part; 113. Second limiting part; 114. Guide groove;

[0033] 20. Slider body; 21. Cover plate; 22. Inner circulation end cover; 23. Assembly groove; 24. Positioning groove; 25. Locking nut; 26. Guide sleeve. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings:

[0035] Example 1

[0036] See attached document Figures 1 to 5As shown: A cage assembly on a linear module includes a cage body 10. The cage body 10 further includes a pair of opposing positioning frames 100, an inner circulation raceway portion 101 formed on the outer end face of the positioning frames 100, and an upper support 102, a middle support 103, and a lower support 104 disposed between the pair of positioning frames 100. The middle support 103 is connected to the bottom of the pair of positioning frames 100, and the upper support 102 and the lower support 104 are symmetrically connected to both sides of the positioning frames 100 along the middle support 103. The bottom surface of the upper support 102 and the lower support 104... The bottom surface of the bracket 104 is arranged parallel to the cross-section of the positioning frame 100. The bottom surface of the middle bracket 103 is arranged in a spatial parallel with the bottom surface of the upper bracket 102 and the bottom surface of the lower bracket 104. The upper bracket 102 and the middle bracket 103, as well as the lower bracket 104 and the middle bracket 103, all have an inner groove 105 that cooperates with the inner circulation raceway 101. The two sides of the inner groove 105 are parallel to each other. The limiting strip 11 rests on the inner side of the middle bracket 103, and the two ends of the limiting strip 11 abut against the positioning frames 100 at both ends of the frame 10.

[0037] In this embodiment, the inner circulation raceway 101 on the positioning frame 100 cooperates with the inner slide groove 105 to ensure smooth circulation of the rollers in the raceway 26. The upper support 102, the middle support 103, and the lower support 104 form a stable frame structure through precise parallel arrangement and connection, ensuring the structural stability and strength of the entire cage assembly. The design of the inner slide groove 105 cooperates with the inner circulation raceway 101 to ensure smooth flow of the rollers in the raceway 26, reduce wear, and extend the service life of the slider. The limiting strip 11 rests on the inner side of the middle support 103 and abuts against the positioning frame 100 at both ends, ensuring the precise position of the rollers in the inner slide groove 105 and preventing the rollers from shifting or falling off.

[0038] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 9 As shown, guide grooves 106 are formed on both the upper and lower sides of the inner slide groove 105. The guide grooves 106 are used to connect with the outer guide sleeve 26 and guide the guide sleeve 26 and the rollers installed on the guide sleeve 26 to move on the inner slide groove 105.

[0039] Guide grooves 106 are formed on both the upper and lower sides of the inner slide groove 105. The guide grooves 106 are used to connect with the outer guide sleeve 26, guiding the guide sleeve 26 and the rollers mounted on the guide sleeve 26 to move smoothly on the inner slide groove 105. Specifically, the design of the inner slide groove 105 forms precise guide grooves 106 on its upper and lower sides. These guide grooves 106 are tightly connected with the outer guide sleeve 26, ensuring precise guidance and smooth movement of the rollers in the inner slide groove 105. Through this design, the rollers can roll smoothly along a predetermined path in the inner slide groove 105, avoiding deviation or jamming, and preventing the rollers from deviating from the predetermined path during movement. This precise guidance not only improves the running stability and accuracy of the slider, but also reduces wear between the rollers and the slide groove. In addition, the design of the guide grooves 106 also enhances the structural stability of the inner slide groove 105, ensuring that the slider can still maintain good performance under high load and high speed conditions.

[0040] Specifically, such as Figures 3 to 5 As shown, a connecting groove 107 is provided on the inner side of the central support 103. The upper and lower sides of the connecting groove 107 are inclined in a direction away from each other, and limit blocks 108 are provided at both ends of the connecting groove 107. The bottom sides of the limit strip 11 are provided with first limit portions 110 that match the upper and lower sides of the connecting groove 107. The bottom ends of the limit strip 11 are provided with limit grooves 111 that match the limit blocks 108. The limit grooves 111 are connected to the corresponding limit blocks 108, and the first limit portions 110 are abutted against the corresponding groove sides.

[0041] In the cage assembly of the linear module, a connecting groove 107 is provided on the inner side of the central support 103. The upper and lower sides of the connecting groove 107 are inclined in a direction away from each other, and limit blocks 108 are provided at both ends of the connecting groove 107. The bottom sides of the limit strip 11 are provided with first limit parts 110 that match the upper and lower sides of the connecting groove 107. The bottom ends of the limit strip 11 are provided with limit grooves 111 that match the limit blocks 108. The limit grooves 111 are connected to the corresponding limit blocks 108, and the first limit parts 110 are abutted against the corresponding groove sides. This design ensures the precise installation and stable fixation of the limit strip 11 on the central support 103, prevents the limit strip 11 from loosening or falling off during use, and improves the running stability and accuracy of the slider.

[0042] Specifically, such as Figure 5 As shown, the top of the limiting strip 11 is provided with a connecting part 112, and the two sides of the connecting part 112 are respectively provided with second limiting parts 113 that are inclined to both sides. The second limiting parts 113 are used to fit with the outer slider body.

[0043] The top of the limiting strip 11 is provided with a connecting part 112, and the two sides of the connecting part 112 are respectively provided with second limiting parts 113 that are inclined to both sides. This inclined design allows the second limiting parts 113 to fit tightly against the inner wall of the outer slider body, thereby ensuring the stable installation of the limiting strip 11 in the slider body. The fit between the second limiting parts 113 and the inner wall of the slider body not only increases the contact area between the limiting strip 11 and the slider body, but also improves the friction between the two, further enhancing the fixing effect of the limiting strip 11.

[0044] Furthermore, such as Figure 2 and Figure 4 As shown, a pair of guide grooves 114 are respectively located on both sides of the connecting groove 107 on the inner side of the middle bracket 103. The first limiting part 110 is close to the groove edge of the connecting groove 107 and extends out of the corresponding groove edge to form a guide groove 106 on one side of the inner sliding groove 105 with the guide groove 114. The connection between the upper bracket 102 and the positioning frame 100 and the connection between the lower bracket 104 and the positioning frame 100 form the guide groove 106 on the other side of the inner sliding groove 105.

[0045] A pair of guide grooves 114 are formed on the inner side of the middle support 103. The guide grooves 114 are located on both sides of the connecting groove 107. The first limiting part 110 is close to the groove edge of the connecting groove 107 and extends out of the corresponding groove edge to form a guide groove 106 on one side of the inner slide groove 105 with the guide groove 114. This design allows the first limiting part 110 to not only fit tightly against the groove edge of the connecting groove 107, but also to cooperate with the guide groove 114 to form a guide groove 106 on one side of the inner slide groove 105, ensuring the precise guidance of the roller on this side. At the same time, the connection between the upper support 102 and the positioning frame 100 and the connection between the lower support 104 and the positioning frame 100 form a guide groove 106 on the other side of the inner slide groove 105. The guide grooves 106 on both sides work together to ensure the precise guidance and smooth movement of the roller in the inner slide groove 105.

[0046] Furthermore, short threaded holes 12 are provided at both ends of the middle bracket 103 and the limiting strip 11 resting on it, and a long threaded hole 13 is provided in the middle of the middle bracket 103 and the limiting strip 11 resting on it.

[0047] Both ends of the central support 103 and the limiting strip 11 resting on it are provided with short threaded holes 12. These short threaded holes 12 are used to fix the limiting strip 11 to the central support 103 with bolts, ensuring the stable installation of the limiting strip 11 at both ends. A long threaded hole 13 is provided in the middle of the central support 103 and the limiting strip 11 resting on it. The design of the long threaded hole 13 not only provides additional fixing points but also increases the flexibility of the connection, ensuring that the limiting strip 11 is evenly stressed on the central support 103. The limiting strip 11 and the central support 103 are both connected and fixedly fixed to the external slider with long bolts. Through the short threaded holes 12 and the long threaded holes 13, the limiting strip 11 can be firmly fixed to the central support 103 and the external slider with bolts to prevent loosening or falling off during use. It should be noted that in this embodiment, the number of short threaded holes 12 at both ends is not limited to one but can be two, three, or more, and the number of long threaded holes 13 is not limited to one but can be two, three, or more, depending on the size of the slider.

[0048] Specifically, such as Figure 2 and Figure 3 As shown, the positioning frame 100 is provided with a pair of internal circulation through holes 109 symmetrically distributed along the central support 103, and the internal circulation through holes 109 are connected to the internal circulation raceway 101.

[0049] The positioning frame 100 is provided with a pair of internal circulation through holes 109. These two internal circulation through holes 109 are symmetrically distributed along the central support 103, ensuring the symmetry and balance of the structure. The internal circulation through holes 109 are connected to the internal circulation raceway 101 to form a complete circulation path, which allows the roller to circulate smoothly between the internal circulation raceway 101 and the inner slide groove 105. This design not only ensures the continuous flow of the roller, but also reduces the resistance of the roller during the circulation process and improves the running efficiency of the slider.

[0050] Furthermore, such as Figure 1 and Figure 2 As shown, the inner circulation raceway portions 101 on a pair of opposing positioning frames 100 are arranged in an alternating orientation.

[0051] The inner circulation raceway sections 101 on a pair of opposing positioning frames 100 are arranged in an alternating pattern, meaning that the inner circulation raceway sections 101 on the two positioning frames 100 have different orientations, forming an alternating layout. This alternating arrangement makes the movement path of the roller between the inner circulation raceway section 101 and the inner slide groove 105 more reasonable, ensuring the uniform distribution and smooth flow of the roller in the raceway. The alternating arrangement of the inner circulation raceway sections 101 not only optimizes the movement path of the roller, but also reduces the resistance of the roller during the movement process, thereby improving the running efficiency of the slider.

[0052] Example 2

[0053] like Figures 1 to 9 As shown: The present invention also provides a slider, including the cage assembly on the linear module of Embodiment 1, and also includes a slider body 20, cover plates 21 installed at the left and right ends of the slider body 20, and an inner circulation end cover 22. The limiting strip 11 and the frame 10 are sequentially installed on the slide groove side wall of the slider body 20. The positioning frame 100 abuts against the end wall of the slider body 20. The inner circulation end cover 22 is installed on the inner circulation raceway 101. The cover plate 21 is connected to the end wall of the slider body 20 to fix the inner circulation end cover 22.

[0054] In this embodiment, the slider body 20 is the basic structure of the entire slider, used to support and fix other components. The limiting strip 11 and the frame 10 are sequentially installed on the slide groove sidewall of the slider body 20, ensuring the stable installation of the limiting strip 11 and the frame 10. The positioning frame 100 abuts against the end wall of the slider body 20, ensuring the accurate position and stability of the positioning frame 100. The inner circulation end cover 22 is installed on the inner circulation raceway 101, sealing the opening of the inner circulation raceway 101 and preventing the rollers from falling off during movement. The cover plate 21 is connected to the end wall of the slider body 20, fixing the inner circulation end cover 22 and ensuring the stability and sealing of the inner circulation end cover 22.

[0055] Specifically, such as Figures 6 to 9 As shown, an assembly groove 23 is provided on the side wall of the slide groove of the slider body 20. Positioning grooves 24 for installing locking nuts 25 and communicating with the assembly groove 23 are provided at both ends of the slider body 20. The limiting strip 11 and the middle bracket 103 are installed on the assembly groove 23 and connected to the locking nut 25 by bolts. The limiting strip 11 and the middle bracket 103 are connected to the slider body 20 by long bolts.

[0056] In the slider design of this linear module, an assembly groove 23 is provided on the side wall of the slider body 20. The assembly groove 23 is V-shaped. The second limiting part 113 fits against the inner wall of the assembly groove 23, which can prevent the limiting strip from warping in the middle due to excessive length. Positioning grooves 24 are provided at both ends of the slider body 20 for installing locking nuts 25 and communicating with the assembly groove 23. The limiting strip 11 and the middle bracket 103 are installed on the assembly groove 23 and connected to the locking nut 25 by bolts. The limiting strip 11 and the middle bracket 103 are also connected to the slider body 20 by long bolts. In use, this design ensures the precise installation and secure fixing of the limiting strip 11 and the central support 103, preventing bulging in the middle position and effectively improving the overall structural stability and reliability of the large slider. The design of the assembly groove 23 and the positioning groove 24 provides installation space and fixing points for the limiting strip 11 and the central support 103, further enhancing the stability and reliability of the connection, preventing loosening or falling off during use, and ensuring the precise guidance and smooth flow of the rollers in the inner slide groove 105. This structural design not only improves the overall structural stability of the slider, but also simplifies the assembly process, improves assembly efficiency, and extends the service life of the slider.

[0057] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A cage assembly on a linear module, characterized in that, include: The frame also includes a pair of opposing positioning frames, an inner circulation raceway formed on the outer end face of the positioning frames, and an upper support, a middle support, and a lower support disposed between the pair of positioning frames. The middle support is connected to the bottom of a pair of positioning frames. The upper and lower supports are symmetrically connected to both sides of the positioning frames along the middle support. The bottom surfaces of the upper and lower supports are parallel to the cross-section of the positioning frames. The bottom surface of the middle support is spatially parallel to the bottom surfaces of the upper and lower supports. The upper and middle supports, as well as the lower and middle supports, each have an inner groove that mates with the inner circulation raceway. The two sides of the inner groove are parallel to each other. The limiting strip rests on the inner side of the central support, and the two ends of the limiting strip abut against the positioning frames at both ends of the frame.

2. The cage assembly on a linear module according to claim 1, characterized in that: Guide grooves are formed on both the upper and lower sides of the inner slide groove. The guide grooves are used to connect with the outer guide sleeve and guide the guide sleeve and the rollers installed on the guide sleeve to move on the inner slide groove.

3. The cage assembly on a linear module according to claim 2, characterized in that: A connecting groove is provided on the inner side of the central support. The upper and lower sides of the connecting groove are inclined in a direction away from each other, and limit blocks are provided at both ends of the connecting groove. The bottom sides of the limit strip are provided with first limit parts that match the upper and lower sides of the connecting groove. The bottom ends of the limit strip are provided with limit grooves that match the limit blocks. The limit grooves are connected to the corresponding limit blocks, and the first limit parts are abutted against the corresponding groove sides.

4. The cage assembly on a linear module according to claim 2, characterized in that: The top of the limiting strip is provided with a connecting part, and the two sides of the connecting part are respectively provided with second limiting parts that are inclined to both sides. The second limiting parts are used to fit with the outer slider body.

5. The cage assembly on a linear module according to claim 3, characterized in that: A pair of guide grooves are provided on the inner side of the middle bracket, respectively located on both sides of the connecting groove. The first limiting part is close to the groove edge of the connecting groove and extends out of the guide groove on the corresponding side of the groove edge and the guide groove to form the inner sliding groove. The connection between the upper bracket and the positioning frame and the connection between the lower bracket and the positioning frame form the guide groove on the other side of the inner sliding groove.

6. The cage assembly on a linear module according to claim 1, characterized in that: The middle support and the limiting strip resting on it are provided with short threaded holes at both ends, and a long threaded hole is provided in the middle of the middle support and the limiting strip resting on it.

7. The cage assembly on a linear module according to claim 1, characterized in that: The positioning frame is provided with a pair of internal circulation through holes symmetrically distributed along the central support, and the internal circulation through holes are connected to the internal circulation raceway.

8. The cage assembly on a linear module according to claim 7, characterized in that: The inner circulation raceways on the pair of oppositely positioned positioning frames are arranged in an alternating orientation.

9. A slider comprising a cage assembly on a linear module according to any one of claims 1 to 8, characterized in that, It also includes a slider body, cover plates installed at the left and right ends of the slider body, and an inner circulation end cover. The limiting strip and the frame are installed sequentially on the slide groove side wall of the slider body. The positioning frame abuts against the end wall of the slider body. The inner circulation end cover is installed on the inner circulation raceway. The cover plate is connected to the end wall of the slider body to fix the inner circulation end cover.

10. A slider according to claim 9, characterized in that, The slider body has an assembly groove on its side wall, and the slider body has positioning grooves at both ends for installing locking nuts and communicating with the assembly groove. The limiting strip and the middle bracket are installed on the assembly groove and connected to the locking nut by bolts. The limiting strip and the middle bracket are connected to the slider body by long bolts.

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