Ball linear guide rail reverser and linear guide rail

Abstract

The ball linear guide rail reverser comprises a reverser body and a cover plate, the reverser body is used for being connected to the two ends of a sliding block, an embedding groove is formed in the side, opposite to the sliding block, of the reverser body, the embedding groove is communicated with a backflow channel, and the cover plate is arranged on the reverser body. The ball can enter the backflow channel through the embedding groove; and the cover plate is configured to be capable of being embedded into the embedding groove. According to the ball linear guide rail reverser provided by the utility model, through the design of the embedding groove and the split structure, the ball filling process is simplified, the assembly precision and efficiency are improved, the problems of non-uniform filling and backflow channel blockage in the traditional scheme are avoided, and the reliability and the production efficiency of a guide rail system are improved.

Description

Technical Field

[0001] This utility model relates to the field of linear guide pair technology, and more specifically, to a ball linear guide return device and a linear guide. Background Technology

[0002] In linear guide systems, the primary function of the balls is to provide a smooth, low-friction path for the slider on the guide rail, thereby achieving high-precision linear motion. The rolling action of the balls reduces contact friction between the slider and the guide rail, thus improving system efficiency and lifespan. To ensure continuous ball circulation and maintain lubrication, the combined design of the slider and the return mechanism body forms a return channel through which the balls continuously flow back, preventing excessive wear and jamming.

[0003] CN221743033U discloses a reversing device and a linear guide rail for its application.

[0004] In the aforementioned patented solutions, the loading of the last few balls often encounters certain difficulties. Due to the limited channel space and the need for the return mechanism body to form a return channel on the slider, the last few balls are difficult to place smoothly into the designated position, which can easily lead to uneven filling or blockage of the return channel. Summary of the Invention

[0005] This utility model aims to solve one of the technical problems in related technologies to a certain extent. To this end, the embodiments of this utility model propose a ball linear guide return device, which simplifies the ball filling process through the interlocking groove design and split structure, improves assembly accuracy and efficiency, avoids the problems of uneven filling and backflow channel blockage in traditional solutions, and improves the reliability and production efficiency of the guide system.

[0006] This utility model embodiment also proposes a linear guide rail having the above-mentioned return mechanism.

[0007] The technical solution adopted by this utility model is as follows: a ball linear guide return device is provided, including a return device body and a cover plate. The return device body is used to connect to both ends of the slider. The side of the return device body facing away from the slider has a fitting groove, which is connected to the return channel, and the ball can enter the return channel through the fitting groove. The cover plate is configured to be embedded in the fitting groove.

[0008] With the above structure, the ball loading process becomes simpler and more efficient. The interlocking groove design allows operators to more precisely place the balls in the designated positions, avoiding uneven ball filling or blockages caused by limited space or obstructed return channels in traditional solutions. Especially during assembly, the interlocking groove provides sufficient space to ensure the last few balls can smoothly enter and flow into the return channel, greatly improving assembly efficiency and the reliability of the guide rail system. Compared to existing technologies, this invention splits the existing integrated return mechanism into two components: the return mechanism body and the cover plate. This structural optimization not only improves the assembly process but also increases production efficiency.

[0009] According to one embodiment of the present invention, the return device body has a first return portion, the cover plate has a second return portion, and the first return portion and the second return portion are combined to form a complete return groove structure; the return groove structure is used to guide the ball recirculation.

[0010] According to one embodiment of this utility model, the return mechanism body has an abutment portion, and the cover plate has a shoulder portion. When the cover plate is inserted into the fitting groove, the shoulder portion and the abutment portion abut tightly and act as a limiting element. This structure ensures that the cover plate will not shift or loosen during assembly, further enhancing the overall stability of the return mechanism. The limiting effect of the shoulder portion and the abutment portion effectively prevents the cover plate from falling off or shifting during use, ensuring smooth movement of the balls in the return channel, thereby improving the reliability and long-term operating performance of the entire guide rail system.

[0011] According to one embodiment of the present invention, the reversing device body has a first connecting portion, and the cover plate has a second connecting portion. When the cover plate is inserted into the fitting groove, the first connecting portion and the second connecting portion are connected by fasteners. The fasteners, through their cooperation with the first and second connecting portions, firmly fix the cover plate to the reversing device body.

[0012] According to one embodiment of this utility model, a ball return baffle is provided between the return unit body and the slider. The return unit body, cover plate, slider, and ball return baffle together form the return channel. This return channel ensures that the balls can circulate smoothly in the return unit system, avoiding performance degradation caused by ball jamming or poor return. The combination of the ball return baffle and the return groove structure constitutes the return channels at both ends of the return channel.

[0013] According to one embodiment of this utility model, the return ball baffle is detachably connected to the slider; the detachable design of the return ball baffle makes the maintenance and replacement of the guide rail system more flexible and convenient. The detachable return ball baffle allows operators to quickly disassemble it when needed for cleaning, inspection, or replacement.

[0014] According to one embodiment of the present invention, an end cap is connected to the side of the reversing device body facing away from the slider, and the end cap is located between the end cap and the reversing device body.

[0015] According to one embodiment of the present invention, at least one of the two return bodies at both ends of the slider is provided with a fitting groove.

[0016] According to one embodiment of the present invention, the reversing device body is connected to a limit block.

[0017] A linear guide rail includes any of the ball linear guide rail return mechanisms described above. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an exploded view of the linear guide rail in Embodiment 1 of this utility model.

[0020] Figure 2 This is a perspective view of the linear guide rail in Embodiment 1 of this utility model.

[0021] Figure 3 This is an exploded view of the linear guide rail in Embodiment 1 of this utility model.

[0022] Figure 4 This is an exploded view of the return device in Embodiment 1 of this utility model.

[0023] Figure 5 This is a perspective view of the cover plate in Embodiment 1 of this utility model.

[0024] Figure 6 This is a perspective view of the reflector body in Embodiment 1 of this utility model.

[0025] Figure 7 This is an exploded view of the linear guide rail in Embodiment 2 of this utility model.

[0026] Figure 8 This is a perspective view of the linear guide rail in Embodiment 2 of this utility model.

[0027] Figure 9 This is an exploded view of the return device in Embodiment 2 of this utility model.

[0028] Figure 10This is a schematic diagram of the structure of the return device body in Embodiment 2 of this utility model.

[0029] Figure 11 This is a perspective view of the return device body in Embodiment 2 of this utility model.

[0030] Figure 12 This is a perspective view of the cover plate in Embodiment 2 of this utility model.

[0031] Figure 13 This is a schematic diagram of the cover plate in Embodiment 2 of this utility model.

[0032] Explanation of the labels in the diagram:

[0033] 1. Reverse gear body; 2. Cover plate; 3. Ball bearing; 4. Limit block; 5. Slider; 6. Return ball baffle; 7. End cap;

[0034] 1a. First reversing part; 1b. Fitting groove; 1c. Abutting part; 1d. First connecting part;

[0035] 2a. Second reversing section; 2b. Shoulder section; 2c. Second connecting section. Detailed Implementation

[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. Example 1

[0037] like Figure 1-6 As shown, this embodiment discloses a ball bearing 3 linear guide return device, including a return device body 1 and a cover plate 2. The return device body 1 is used to connect to both ends of the slider 5. The side of the return device body 1 facing away from the slider 5 has a fitting groove 1b, which is connected to the return channel, and the ball bearing 3 can enter the return channel through the fitting groove 1b. The cover plate 2 is configured to be embedded in the fitting groove 1b.

[0038] Furthermore, in this embodiment, a return bead baffle 6 and a return device body 1 are installed at both ends of the slider 5. The slider 5 has a straight channel inside, and the combination of the return bead baffle 6, the return device body 1, and the cover plate 2 forms a return channel. Even further, in this embodiment, the return device body 1 has a first return portion 1a, and the cover plate 2 has a second return portion 2a. The first return portion 1a and the second return portion 2a combine to form a complete return groove structure, and the combination of the return bead baffle 6 and the return groove structure constitutes the return channels at both ends of the return channel.

[0039] Furthermore, in this embodiment, the reversing device body 1 has four fitting grooves 1b on the side facing away from the slider 5. Correspondingly, the ball bearing 3 linear guide reversing device includes four cover plates 2. The reversing device body 1 has an abutment portion 1c, and the cover plate 2 has a shoulder portion 2b. When the cover plate 2 is inserted into the fitting groove 1b, the shoulder portion 2b and the abutment portion 1c are tightly pressed together and play a limiting role. The reversing device body 1 has a first connecting portion 1d, and the cover plate 2 has a second connecting portion 2c. When the cover plate 2 is inserted into the fitting groove 1b, the first connecting portion 1d and the second connecting portion 2c are connected by fasteners. The fasteners, through their cooperation with the first connecting portion 1d and the second connecting portion 2c, firmly fix the cover plate 2 onto the reversing device body 1.

[0040] Furthermore, in this embodiment, an end cap 7 is connected to the side of the return device body 1 facing away from the slider 5, and the cover plate 2 is located between the end cap 7 and the return device body 1.

[0041] Furthermore, in this embodiment, a limiting block 4 is connected to the side of the end cap 7 facing away from the return body 1. The limiting block 4 is used to limit the slider 5.

[0042] Specifically, in combination Figure 3 As shown, in this embodiment, the return ball baffle 6 is detachably connected to the slider 5; the detachable design of the return ball baffle 6 makes the maintenance and replacement of the guide rail system more flexible and convenient. The detachable return ball baffle 6 allows operators to quickly disassemble it when needed for cleaning, inspection, or replacement.

[0043] Other embodiments disclose a linear guide rail, including the ball bearing 3 linear guide rail return device described in this embodiment. Example 2

[0044] like Figure 7-13 As shown, this embodiment discloses a ball bearing 3 linear guide return device, including a return device body 1 and a cover plate 2. The return device body 1 is used to connect to both ends of the slider 5. The side of the return device body 1 facing away from the slider 5 has a fitting groove 1b, which is connected to the return channel, and the ball bearing 3 can enter the return channel through the fitting groove 1b. The cover plate 2 is configured to be embedded in the fitting groove 1b.

[0045] The difference between this embodiment and embodiment one is that the reversing device body 1 in this embodiment has only one fitting groove 1b, and a limiting block 4 is installed in the fitting groove 1b. The limiting block 4 has four second reversing parts 2a. When the cover plate 2 is connected to the reversing device body 1, the four second reversing parts 2a and the four first reversing parts 1a on the reversing device body 1 combine to form a reversing channel.

[0046] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A ball linear guide return mechanism, characterized in that: The device includes a return mechanism body and a cover plate. The return mechanism body is used to connect to both ends of the slider. The side of the return mechanism body facing away from the slider has a fitting groove that communicates with the return channel, and the ball can enter the return channel through the fitting groove. The cover plate is configured to be embedded in the fitting groove.

2. The ball linear guide return mechanism according to claim 1, characterized in that: The reversing device body has a first reversing part, and the cover plate has a second reversing part. The first reversing part and the second reversing part are combined to form a complete reversing groove structure.

3. The ball linear guide return mechanism according to claim 1, characterized in that: The reversing device body has an abutment portion, and the cover plate has a shoulder portion. When the cover plate is inserted into the fitting groove, the shoulder portion abuts against the abutment portion and plays a limiting role.

4. A ball linear guide return mechanism according to any one of claims 1-3, characterized in that: The reversing device body has a first connecting part, and the cover plate has a second connecting part. When the cover plate is embedded in the fitting groove, the first connecting part and the second connecting part are connected by fasteners.

5. A ball linear guide return mechanism according to claim 4, characterized in that: A return ball baffle is provided between the return device body and the slider, and the return device body, cover plate, slider and the return ball baffle are combined to form the return channel.

6. A ball linear guide return mechanism according to claim 5, characterized in that: The return ball baffle is detachably connected to the slider.

7. A ball linear guide return mechanism according to claim 1, characterized in that: An end cap is connected to the side of the return device body facing away from the slider, and the end cap is located between the end cap and the return device body.

8. A ball linear guide return mechanism according to claim 1, characterized in that: At least one of the two return bodies at both ends of the slider is provided with a fitting groove.

9. A ball linear guide return mechanism according to claim 1, characterized in that: The return unit body is connected to a limit block.

10. A linear guide rail, characterized in that: Includes the ball linear guide return device as described in any one of claims 1-9.

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