Retainer assembly and sliding block on linear module

Abstract

The retainer assembly comprises a retainer body, the retainer body further comprises a pair of oppositely-arranged positioning frames, inner circulation roller path parts formed on the outer end faces of the positioning frames, an upper side support, a middle support and a lower side support, and the upper side support, the middle support and the lower side support are arranged between the pair of positioning frames; wherein the middle support is connected to the bottoms of the pair of positioning frames, the upper side support and the lower side support are symmetrically connected to the two sides of the positioning frames along the middle support, and the bottom face of the upper side support and the bottom face of the lower side support are arranged in parallel along the cross section of the positioning frames. The retainer assembly comprises a middle support, an upper support and a lower support, the bottom face of the middle support, the bottom face of the upper support and the bottom face of the lower support are arranged in parallel in space, and inner sliding grooves matched with the inner circulation raceway part are formed in the upper support, the middle support, the lower support and the middle support correspondingly. The structure is optimized so as to be easy to assemble, and is particularly suitable for large sliding blocks, and the problem of difficult mold opening in injection molding is also avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of sliders, and in particular to a retaining frame assembly and a slider on a linear module. Background Art

[0002] Linear slides are widely used in linear reciprocating motion applications. They can bear a certain torque and achieve high-precision linear motion under high load conditions. In traditional slider designs, the cage assembly usually adopts a relatively simple structure, such as a single single-root cage form, which leads to problems such as ball or roller displacement and falling off during high-speed operation, thereby affecting the working stability and life of the slider and even the entire linear module. In addition, traditional cage assemblies are also inconvenient in installation and maintenance, and cannot meet the requirements of modern industry for efficiency and convenience.

[0003] The existing Chinese patent publication number CN113202867A discloses an integrated cage for a linear module. The cage avoids assembly errors caused by splicing the components together by integrating the inner loop, the upper cage component, the lower cage component and the middle cage component, so that the ball can run smoothly during rolling and has a long service life, thereby solving the above problems.

[0004] However, this patent is mainly for small sliders, and its design has some shortcomings for large-sized sliders. First, the uniformity of the roller support and cage fixing points needs to be further optimized. In large-sized sliders, the uniformity of the roller support and fixing points is crucial to the operating stability and life of the slider. If the support points are unevenly distributed, the rollers will be unevenly stressed during movement, which may cause problems such as offset and increased wear, thus affecting the overall performance and life of the slider; secondly, the structure of the cage assembly is relatively complex. Although the integrated 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, inconvenience in mold opening during mold injection molding, and long production cycles. Summary of the invention

[0005] The present invention aims to solve the problems existing in the above-mentioned prior art, and provides a retaining frame assembly and a slider for a linear module, optimizes the uniformity of the roller support and retaining frame fixing points of a large-size slider, improves the operating stability and service life of the slider, and at the same time simplifies the assembly process and improves production efficiency.

[0006] The present invention solves the technical problem by adopting a technical solution: the cage assembly on the linear module comprises: a frame body, the frame body further comprising a pair of positioning frames arranged opposite to each other, an inner circulation raceway formed on the outer end surface of the positioning frames, and an upper bracket, a middle bracket and a lower bracket arranged between the pair of positioning frames; The middle bracket is connected to the bottom of a pair of positioning frames, the upper bracket and the lower bracket are symmetrically connected to the two sides of the positioning frame along the middle bracket, the bottom surface of the upper bracket and the bottom surface of the lower bracket are arranged in parallel along the cross section of the positioning frame, the bottom surface of the middle bracket is arranged in parallel with the bottom surface of the upper bracket and the bottom surface of the lower bracket in space, the upper bracket and the middle bracket, as well as the lower bracket and the middle bracket are formed with an inner slide groove matched with the inner circulation raceway portion, and the groove edges on both sides of the inner slide groove are parallel to each other; The limiting strip rests on the inner side of the middle bracket, and the two ends of the limiting strip respectively abut against the positioning frames at the two ends of the bracket.

[0007] Preferably, guide grooves are formed on both upper and lower groove walls of the inner groove, and the guide grooves are used to connect with the external guide sleeve to guide the guide sleeve and the rollers installed on the guide sleeve to move on the inner groove.

[0008] Preferably, a connecting groove is provided on the inner side of the middle bracket, the upper and lower groove edges of the connecting groove are inclined in directions away from each other, and limiting blocks are provided on both ends of the connecting groove, and first limiting parts matching the upper and lower groove edges of the connecting groove are provided on both sides of the bottom of the limiting strip, and limiting grooves matching the limiting blocks are provided at both ends of the bottom of the limiting strip, the limiting grooves are connected to the corresponding limiting blocks, and the first limiting parts are abutted against the corresponding groove edges.

[0009] Preferably, a connecting portion is provided at the top of the limiting strip, and second limiting portions inclined toward both sides are respectively provided on both sides of the connecting portion, and the second limiting portions are used to fit with the external slider body.

[0010] Preferably, a pair of guide grooves are opened on the inner side of the middle bracket and are respectively located on both sides of the connecting groove. The first limiting portion is in contact with the groove edge of the connecting groove and extends out from the corresponding side. The groove edge and the guide groove form the guide groove on one side of 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.

[0011] Preferably, short threaded holes are provided at both ends of the middle bracket and the limiting strip resting thereon, and a long threaded hole is provided in the middle of the middle bracket and the limiting strip resting thereon.

[0012] Preferably, the positioning frame is provided with a pair of inner circulation through holes symmetrically distributed along the middle bracket, and the inner circulation through holes are connected with the inner circulation raceway portion.

[0013] Preferably, the inner circulation raceway portions on a pair of oppositely disposed positioning frames are arranged in a staggered orientation.

[0014] The present invention solves the above-mentioned technical problem and also provides a slider, including the above-mentioned retaining frame assembly on a linear module, and also includes a slider body, a cover plate installed on the left and right ends of the slider body, and an inner circulation end cover, the limit strip and the frame body are installed on the side walls of the slide groove of the slider body in sequence, the positioning frame is against the end wall of the slider body, the inner circulation end cover is installed on the inner circulation raceway part, and the cover plate is connected to the end wall of the slider body to fix the inner circulation end cover.

[0015] Preferably, an assembly groove is provided on the side wall of the slide groove of the slider body, and positioning grooves for installing locking nuts and connected to the assembly groove are provided at both ends of the slider body. The limit strip and the middle bracket are installed on the assembly groove and connected to the locking nuts by bolts. The limit strip and the middle bracket are connected to the slider body by long bolts.

[0016] The present invention has the following beneficial effects: 1. The present invention divides the cage assembly into two parts, a frame body and a limit strip, optimizes the structure for easy assembly, is particularly suitable for large sliders, and avoids the problem of difficult mold opening in injection molding, ensuring smooth movement of the roller on the outer raceway, especially the design of the inner slide groove and the guide groove, so that the movement of the roller in the guide sleeve is more stable, reducing wear and extending the service life of the slider; 2. A pair of inner circulation through holes arranged on the positioning frame are connected with the inner circulation raceway, which optimizes the movement path of the roller and matches the design of the inner slideway and guide groove, ensuring the smooth flow of the roller on the outer raceway, reducing wear and extending the service life of the slider; 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 more superior and ensures the stable operation of the slider under high load and high precision requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a top view of the retainer assembly in the first embodiment; Figure 2 is a schematic diagram of the structure of the frame in the first embodiment; Figure 3 This is a schematic diagram of the structure of the inner chute in the first embodiment; Figure 4 is a cross-sectional view of the retainer assembly in the first embodiment; Figure 5 This is a bottom view of the limit strip in the first embodiment; Figure 6 is a schematic diagram of the structure of the slider in the second embodiment; Figure 7 This is an exploded view of the structure of the slider in the second embodiment; Figure 8 This is a schematic diagram of the structure of the assembly slot in the second embodiment; Fig. 9 This is an assembly diagram of the cage assembly and the guide sleeve in the second embodiment.

[0018] Description of reference numerals: 10. frame; 11. limiting strip; 12. short threaded hole; 13. long threaded hole; 100. positioning frame; 101. inner circulation raceway; 102. upper bracket; 103. middle bracket; 104. lower bracket; 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; 20. Slider body; 21. Cover plate; 22. Internal circulation end cover; 23. Assembly groove; 24. Positioning groove; 25. Locking nut; 26. Guide sleeve. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings: Embodiment 1 See attached Figures 1 to 5 As shown: A retainer assembly on a linear module, comprising: a frame body 10: the frame body 10 also includes a pair of relatively arranged positioning frames 100, an inner circulation raceway portion 101 formed on the outer end surface of the positioning frame 100, and an upper bracket 102, a middle bracket 103 and a lower bracket 104 arranged between the pair of positioning frames 100; wherein the middle bracket 103 is connected to the bottom of the pair of positioning frames 100, the upper bracket 102 and the lower bracket 104 are symmetrically connected to the two sides of the positioning frame 100 along the middle bracket 103, and the bottom surface of the upper bracket 102 and the lower bracket 104 are symmetrically connected to the bottom surface of the upper bracket 102 and the lower bracket 104. The bottom surface of the bracket 104 is arranged parallel to the cross-section of the positioning frame 100, and the bottom surface of the middle bracket 103 is spatially parallel to 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 are all formed with an inner slide groove 105 that cooperates with the inner circulation raceway portion 101, and the two side groove edges of the inner slide groove 105 are parallel to each other; the limit strip 11 rests on the inner side of the middle bracket 103, and the two ends of the limit strip 11 respectively abut against the positioning frames 100 at both ends of the frame body 10.

[0020] In this embodiment, the inner circulation raceway portion 101 on the positioning frame 100 cooperates with the inner slide groove 105 to ensure the smooth circulation of the roller in the raceway 26. The upper bracket 102, the middle bracket 103 and the lower bracket 104 form a stable frame structure through precise parallel setting and connection relationship, ensuring the structural stability and strength of the entire retaining frame assembly. The design of the inner slide groove 105 cooperates with the inner circulation raceway portion 101 to ensure the smooth flow of the roller in the raceway 26, reduce wear and extend the service life of the slider. The limit strip 11 rests on the inner side of the middle bracket 103, and the two ends abut against the positioning frame 100, ensuring the precise position of the roller in the inner slide groove 105 and preventing the roller from offsetting or falling off.

[0021] Specifically, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Fig. 9 As shown, guide grooves 106 are formed on the upper and lower groove walls of the inner groove 105 , and the guide grooves 106 are used to connect with the outer guide sleeve 26 to guide the guide sleeve 26 and the rollers installed on the guide sleeve 26 to move on the inner groove 105 .

[0022] Guide grooves 106 are formed on the upper and lower groove walls of the inner slide groove 105. The guide grooves 106 are used to connect with the external guide sleeve 26 to guide the guide sleeve 26 and the rollers installed 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 groove walls. These guide grooves 106 are tightly connected with the external guide sleeve 26, ensuring the 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 the occurrence of offset or jamming, and preventing the rollers from deviating from the predetermined path during movement. This precise guiding not only improves the operating stability and accuracy of the slider, but also reduces the wear between the roller 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 movement conditions.

[0023] Specifically, Figures 3 to 5 As shown, a connecting groove 107 is provided on the inner side of the middle bracket 103, and the upper and lower groove edges of the connecting groove 107 are inclined in the direction away from each other, and limiting blocks 108 are provided on both ends of the connecting groove 107, and first limiting portions 110 matching the upper and lower groove edges of the connecting groove 107 are provided on both sides of the bottom of the limiting strip 11, and limiting grooves 111 matching the limiting blocks 108 are provided on both ends of the bottom of the limiting strip 11, the limiting grooves 111 are connected to the corresponding limiting blocks 108, and the first limiting portions 110 are abutted against the corresponding groove edges.

[0024] In the retaining frame assembly on the linear module, a connecting groove 107 is provided on the inner side of the middle bracket 103, and the upper and lower groove edges of the connecting groove 107 are inclined in the direction of moving away from each other, and limiting blocks 108 are provided on both ends of the connecting groove 107; first limiting portions 110 matching the upper and lower groove edges of the connecting groove 107 are provided on both sides of the bottom of the limiting strip 11, and limiting grooves 111 matching the limiting blocks 108 are provided on both ends of the bottom of the limiting strip 11. The limiting grooves 111 are connected to the corresponding limiting blocks 108, and the first limiting portions 110 are abutted against the corresponding groove edges. This design ensures the accurate installation and firm fixation of the limiting strip 11 on the middle bracket 103, prevents the limiting strip 11 from loosening or falling off during use, and improves the running stability and accuracy of the slider.

[0025] Specifically, Figure 5 As shown, a connecting portion 112 is provided at the top of the limiting strip 11 , and second limiting portions 113 inclined toward both sides are provided on both sides of the connecting portion 112 , respectively, and the second limiting portions 113 are used to fit with the external slider body.

[0026] A connecting portion 112 is provided at the top of the limiting strip 11, and second limiting portions 113 inclined toward both sides are provided on both sides of the connecting portion 112. This inclined design enables the second limiting portion 113 to fit tightly with the inner wall of the external slider body, thereby ensuring the stable installation of the limiting strip 11 in the slider body. The second limiting portion 113 fits with the inner wall of the slider body, which not only increases the contact area between the limiting strip 11 and the slider body, but also increases the friction between the two, further enhancing the fixing effect of the limiting strip 11.

[0027] Furthermore, if Figure 2 and Figure 4 As shown, a pair of guide grooves 114 are opened on the inner side of the middle bracket 103, which are respectively located on both sides of the connecting groove 107. The first limiting portion 110 is in contact with the groove edge of the connecting groove 107, and extends out from the corresponding side groove edge and the guide groove 114 to form a guide groove 106 on one side of the inner slide groove 105. 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 slide groove 105.

[0028] A pair of guide grooves 114 are provided on the inner side of the middle bracket 103, and the pair of guide grooves 114 are respectively located on both sides of the connecting groove 107, and the first limiting portion 110 is in contact with the groove edge of the connecting groove 107, and extends out from the corresponding side groove edge and the guide groove 114 to form a guide groove 106 on one side of the inner slide groove 105. This design enables the first limiting portion 110 to not only fit tightly on the groove edge of the connecting groove 107, but also cooperate with the guide groove 114 to form the 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 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 slide groove 105, and 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.

[0029] Furthermore, short threaded holes 12 are provided at both ends of the middle bracket 103 and the limiting strip 11 resting thereon, and long threaded holes 13 are provided in the middle of the middle bracket 103 and the limiting strip 11 resting thereon.

[0030] The middle bracket 103 and the limiting strip 11 resting thereon are provided with short threaded holes 12 at both ends, and these short threaded holes 12 are used to fix the limiting strip 11 to the middle bracket 103 by bolts, ensuring the stable installation of the limiting strip 11 at both ends; the middle bracket 103 and the limiting strip 11 resting thereon are provided with long threaded holes 13, and the design of the long threaded holes 13 not only provides an additional fixing point, but also increases the flexibility of the connection, ensuring the uniform force of the limiting strip 11 on the middle bracket 103, and the limiting strip 11 and the middle bracket 103 are connected and fixed to the external slider by long bolts, and the limiting strip 11 can be fixed to the middle bracket 103 and the external slider by bolts through the short threaded holes 12 and the long threaded holes 13, so as to prevent loosening or falling off during use. It should be noted that in this embodiment, the short threaded holes 12 at both ends are not limited to one, but can be two, three or more, and the long threaded holes 13 are not limited to one, but can be two, three or more, and are set according to the size of the slider.

[0031] Specifically, Figure 2 and Figure 3 As shown, the positioning frame 100 is provided with a pair of inner circulation through holes 109 symmetrically distributed along the middle bracket 103 , and the inner circulation through holes 109 are connected to the inner circulation raceway portion 101 .

[0032] A pair of inner circulation through holes 109 are provided on the positioning frame 100, and the pair of inner circulation through holes 109 are symmetrically distributed along the middle bracket 103, ensuring the symmetry and balance of the structure. The inner circulation through holes 109 are connected with the inner circulation raceway portion 101 to form a complete circulation path, so that the rollers can circulate smoothly between the inner circulation raceway portion 101 and the inner slide groove 105. This design not only ensures the continuous flow of the rollers, but also reduces the resistance of the rollers during the circulation process, thereby improving the operation efficiency of the slider.

[0033] Furthermore, if Figure 1 and Figure 2 As shown, the inner circulation raceway portions 101 on a pair of oppositely disposed positioning frames 100 are arranged in a staggered orientation.

[0034] The inner circulation raceway portions 101 on a pair of relatively arranged positioning frames 100 are arranged in a staggered orientation, that is, the inner circulation raceway portions 101 on the two positioning frames 100 have different orientations, forming a staggered layout. This staggered arrangement makes the movement path of the roller between the inner circulation raceway portion 101 and the inner slide groove 105 more reasonable, ensuring the uniform distribution and smooth flow of the roller in the raceway. The staggered arrangement of the inner circulation raceway portion 101 not only optimizes the movement path of the roller, but also reduces the resistance of the roller during movement, thereby improving the operation efficiency of the slider.

[0035] Embodiment 2 like Figures 1 to 9 As shown: The present invention also provides a slider, including the retaining frame assembly on the linear module of Example 1, and also includes a slider body 20, a cover plate 21 installed at the left and right ends of the slider body 20, and an inner circulation end cover 22, the limit strip 11 and the frame body 10 are installed on the side walls of the slide groove of the slider body 20 in sequence, the positioning frame 100 is against the end wall of the slider body 20, the inner circulation end cover 22 is installed on the inner circulation raceway portion 101, the cover plate 21 is connected to the end wall of the slider body 20, and the inner circulation end cover 22 is fixed.

[0036] In this embodiment, the slider body 20 is the basic structure of the entire slider, which is used to support and fix other components. The limit strip 11 and the frame 10 are installed on the side walls of the slide groove of the slider body 20 in sequence, ensuring the stable installation of the limit strip 11 and the frame 10. The positioning frame 100 abuts against the end wall of the slider body 20, ensuring the precise position and stability of the positioning frame 100. The inner circulation end cover 22 is installed on the inner circulation raceway portion 101, closing the opening of the inner circulation raceway portion 101 to prevent the roller from falling off during movement. The cover plate 21 is connected to the end wall of the slider body 20 to fix the inner circulation end cover 22, ensuring the stability and sealing of the inner circulation end cover 22. Specifically, Figures 6 to 9As shown, an assembly groove 23 is provided on the side wall of the slide groove of the slider body 20, and 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 limit strip 11 and the middle bracket 103 are installed on the assembly groove 23 and connected to the locking nuts 25 by bolts. The limit strip 11 and the middle bracket 103 are connected to the slider body 20 by long bolts.

[0037] In the design of the slider on the linear module, an assembly groove 23 is provided on the side wall of the slide groove of the slider body 20, and the assembly groove 23 is in a "V" shape. The second limiting portion 113 is in contact with the inner wall of the assembly groove 23, which can prevent the limiting strip from being warped in the middle due to being too long. 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 with the locking nuts 25 by bolts. The limiting strip 11 and the middle bracket 103 are also connected to the slider body 20 by long bolts, and the connection between the bolts and the locking nuts 25 and the long bolts is achieved. This design ensures the precise installation and firm fixation of the limit strip 11 and the middle bracket 103, prevents bulging in the middle position, and effectively improves 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 limit strip 11 and the middle bracket 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 roller 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.

[0038] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A cage assembly on a linear module, characterized in that: include: The frame body further comprises a pair of positioning frames arranged opposite to each other, an inner circulation raceway formed on the outer end surfaces of the positioning frames, and an upper bracket, a middle bracket and a lower bracket arranged between the pair of positioning frames; The middle bracket is connected to the bottom of a pair of positioning frames, the upper bracket and the lower bracket are symmetrically connected to the two sides of the positioning frame along the middle bracket, the bottom surface of the upper bracket and the bottom surface of the lower bracket are arranged in parallel along the cross section of the positioning frame, the bottom surface of the middle bracket is arranged in parallel with the bottom surface of the upper bracket and the bottom surface of the lower bracket in space, the upper bracket and the middle bracket, as well as the lower bracket and the middle bracket are formed with an inner slide groove matched with the inner circulation raceway portion, and the groove edges on both sides of the inner slide groove are parallel to each other; The limiting strip rests on the inner side of the middle bracket, and the two ends of the limiting strip respectively abut against the positioning frames at the two ends of the bracket.

2. The retainer assembly on the linear module according to claim 1 is characterized in that: Guide grooves are formed on the groove walls on both sides of the upper and lower sides of the inner slide groove. The guide grooves are used to connect with the external guide sleeve to guide the guide sleeve and the roller installed on the guide sleeve to move on the inner slide groove.

3. The retainer assembly on the linear module according to claim 2 is characterized in that: A connecting groove is provided on the inner side of the middle bracket, and the upper and lower groove edges of the connecting groove are inclined in directions away from each other, and limiting blocks are provided on both ends of the connecting groove. First limiting parts matching the upper and lower groove edges of the connecting groove are provided on both sides of the bottom of the limiting strip, and limiting grooves matching the limiting blocks are provided at both ends of the bottom of the limiting strip, the limiting grooves are connected to the corresponding limiting blocks, and the first limiting parts are abutted against the corresponding groove edges.

4. The retainer assembly on the linear module according to claim 2 is characterized in that: A connecting portion is provided on the top of the limiting strip, and second limiting portions inclined toward both sides are respectively provided on both sides of the connecting portion, and the second limiting portions are used to fit with the external slider body.

5. The retainer assembly on the linear module according to claim 3 is characterized by: A pair of guide grooves are provided on the inner side of the middle bracket, which are respectively located on both sides of the connecting groove. The first limiting portion is in contact with the groove edge of the connecting groove and extends out from the corresponding side. The groove edge and the guide groove form the guide groove on one side of 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 retainer assembly on the linear module according to claim 1 is characterized by: Both ends of the middle bracket and the limiting strip resting thereon are provided with short threaded holes, and the middle position of the middle bracket and the limiting strip resting thereon is provided with a long threaded hole.

7. The retainer assembly on a linear module according to claim 1, characterized in that: The positioning frame is provided with a pair of inner circulation through holes symmetrically distributed along the middle bracket, and the inner circulation through holes are communicated with the inner circulation raceway portion.

8. The retainer assembly on the linear module according to claim 7 is characterized by: The inner circulation raceway portions on a pair of oppositely arranged positioning frames are arranged in a staggered manner.

9. A slider, comprising a retainer assembly on a linear module according to any one of claims 1 to 8, characterized in that: It also includes a slider body, a cover plate installed on the left and right ends of the slider body, and an inner circulation end cover. The limit strip and the frame are installed on the side walls of the slide groove of the slider body in sequence. The positioning frame rests on the end wall of the slider body. The inner circulation end cover is installed on the inner circulation raceway part. 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: An assembly groove is provided on the side wall of the slide groove of the slider body, and positioning grooves for installing locking nuts and connected to the assembly groove are provided at both ends of the slider body. The limit strip and the middle bracket are installed on the assembly groove and connected to the locking nuts by bolts. The limit strip and the middle bracket are connected to the slider body by long bolts.

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