A splicable linear guide rail

Abstract

The utility model relates to linear guide rail technical field, concretely is a kind of splicing linear guide rail, including guide rail assembly, first connecting assembly and second connecting assembly.The recess with threaded groove is opened in the both ends of guide rail assembly;First connecting assembly is equipped with the first bump of magnetic attraction function, connecting groove and oblique first bolt;Second connecting assembly is equipped with the second bump of magnetic attraction function and oblique second threaded hole.The magnetic attraction insertion of first bump, second bump and corresponding recess realizes quick preposition, and the mechanical interlock of the complementary dovetail shape structure of connecting groove and second connecting block is formed, and multiple-point fastening is realized by first bolt, second bolt and third bolt.The utility model realizes the quick, accurate splicing of multistage guide rail, effectively improves the rigidity, stability and load capacity of connecting part, compact structure, convenient to install, applicable to high-precision, long-stroke linear motion scene.

Description

Technical Field

[0001] This utility model relates to the field of linear guide technology, specifically a splicable linear guide. Background Technology

[0002] Linear guides are key functional components in automated equipment, CNC machine tools, industrial robots, and precision measurement systems, widely used to achieve precise linear motion of loads. With the continuous improvement of industrial automation, higher requirements are being placed on the stroke length, installation flexibility, and structural adaptability of linear guides.

[0003] Currently, most linear guides on the market are designed with a fixed length. For example, a linear guide device disclosed in Chinese Patent Publication No. CN205260624U has a length that cannot be adjusted after leaving the factory, making it difficult to adapt to application scenarios with different strokes. If long-distance guidance is required, ultra-long guides are usually required to be customized, resulting in high manufacturing costs, difficulties in transportation and installation, and a lack of on-site adjustability.

[0004] To address the aforementioned issues, existing technologies have proposed several modular guide rail solutions. For example, Chinese patent CN221704211U discloses a modular linear guide rail that achieves physical docking of multiple sections by setting a positioning groove and positioning rod at one end of the rail, a positioning block and positioning hole at the other end, and a locking groove and locking plate at the bottom. This solution also integrates a motor and gears inside the slider, which, in conjunction with the rack on the rail, achieves self-drive, thus possessing a certain degree of modularity and expandability.

[0005] However, this type of existing structure still has certain limitations: Firstly, the splicing relies on plug-in positioning and bottom locking plate fixation, and there is still room for improvement in the rigidity and stability of the joint when subjected to complex loads; Secondly, the precision retention and repeated disassembly / reassembly performance of the connection parts also need further optimization. Therefore, a splicable linear guide is needed to improve the above problems. Utility Model Content

[0006] To address the problems of insufficient rigidity in the splicing structure, the need to improve connection stability, and the cumbersome installation process in existing splicable linear guides, this utility model provides a splicable linear guide to solve the above problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A modular linear guide rail includes a guide rail assembly, a first connecting assembly, and a second connecting assembly. The guide rail assembly includes a guide rail, a first groove and a second groove formed at both ends of the guide rail, a first threaded groove formed in the first groove, and a second threaded groove formed in the second groove.

[0008] The first connecting assembly includes a first connecting block, two first threaded holes obliquely upward and downward on both sides of the first connecting block, a first bolt disposed in the first threaded holes, a connecting groove disposed on the top of the first connecting block, a first protrusion fixed to the outer surface of the first connecting block, and a second bolt threaded through the first connecting block and the connecting groove respectively.

[0009] The second connecting assembly includes a second connecting block, a second protrusion fixed to the outer surface of the second connecting block, a third bolt threaded through the second connecting block and the second protrusion, and two second threaded holes obliquely upward and downward on both sides of the second connecting block.

[0010] The threaded end of the first bolt is threaded into both the second threaded hole and the first threaded hole. The connecting groove matches the cross-section of the second connecting block. The first protrusion is magnetically inserted into the second groove. The end of the second bolt is threaded into the second threaded groove. The end of the third bolt is threaded into the first threaded groove. The second protrusion is magnetically inserted into the first groove.

[0011] As a preferred embodiment of this utility model, a first mounting groove is formed on the second connecting block, the first threaded hole communicates with the first mounting groove, and the nut end of the first bolt is located in the first mounting groove.

[0012] By providing a first mounting groove on the first connecting block and accommodating the nut end of the first bolt therein, this structure prevents the bolt head from being exposed, avoids interference with other components, improves the neatness and safety of the connection, and facilitates installation and maintenance while reducing potential movement obstacles.

[0013] As a preferred embodiment of this utility model, a second mounting groove is provided on the connecting groove, and the nut end of the second bolt is located in the second mounting groove.

[0014] A second mounting groove is opened on the connecting groove to accommodate the nut end of the second bolt. This design ensures that the bolt head does not protrude from the connecting surface, thereby avoiding friction or jamming during splicing or sliding, and improving the smoothness of the guide rail and the compactness of the overall structure.

[0015] As a preferred embodiment of this utility model, a third mounting groove is provided on the second connecting block, and the nut end of the third bolt is located in the third mounting groove.

[0016] The second connecting block has a third mounting groove, in which the nut end of the third bolt is embedded. This not only optimizes space utilization but also prevents the bolt head from interfering with the connection, enhancing the stability and appearance consistency of the connection, making it suitable for high-precision applications.

[0017] As a preferred embodiment of this utility model, both the first protrusion and the second protrusion are magnetic blocks.

[0018] By setting the first and second protrusions as magnetic blocks, magnetic force is used to achieve quick alignment and temporary fixation, which greatly simplifies the positioning steps in the splicing process, improves installation efficiency, ensures stability in the initial stage of connection, and reduces manual adjustment time.

[0019] As a preferred embodiment of this utility model, the cross-sections of the connecting groove and the second connecting block are complementary dovetail-shaped structures.

[0020] The connecting groove and the second connecting block adopt a complementary dovetail cross-section structure. This design provides a strong mechanical interlocking effect, effectively preventing the connecting parts from disengaging or shifting under stress, enhancing the rigidity and reliability of the guide rail splicing, and making it suitable for high-load environments.

[0021] As a preferred embodiment of this utility model, the threaded end of the first bolt is threadedly engaged with both the second threaded hole and the first threaded hole.

[0022] By having the threaded end of the first bolt simultaneously engage with both the second threaded hole and the first threaded hole, a two-way fastening mechanism is formed, ensuring a tight connection between the first and second connecting components, reducing the risk of loosening, and improving the overall structure's durability and vibration resistance.

[0023] As a preferred embodiment of this utility model, a slider is slidably fitted on the guide rail.

[0024] By setting a slider on the guide rail and allowing it to slide in contact, the core function of the linear guide rail is realized, allowing the load to move smoothly along the guide rail, expanding the application range of the guide rail, such as in automated equipment and precision machinery, and improving its practicality and flexibility.

[0025] 1. Compared with the prior art, this utility model, by setting a docking structure with magnetic blocks and complementary grooves in the splicable linear guide rail, can achieve rapid and accurate pre-positioning and temporary fixation during splicing. The magnetic adsorption replaces manual fine alignment, which significantly simplifies the initial installation steps and improves splicing efficiency.

[0026] 2. Compared with the prior art, this utility model, by setting a connecting groove with a complementary dovetail cross section and a second connecting block in the splicable linear guide rail, and supplementing it with a first bolt that penetrates obliquely, can achieve strong mechanical interlocking and bidirectional fastening of the connection parts. Through multiple constraints, the rigidity, stability and resistance to complex loads of the splicing node are significantly enhanced.

[0027] 3. Compared with the prior art, this utility model, by setting an embedded mounting groove in the splicable linear guide rail to accommodate the bolt head, can ensure that the heads of all fasteners do not protrude from the connection surface. By eliminating the source of motion interference, it ensures that the slider slides continuously and smoothly on the splicing guide rail throughout the entire process, thereby improving the stability and reliability of operation. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the linear guide rail of this utility model; Figure 2 This is a schematic diagram of the left side of the guide rail assembly of this utility model; Figure 3 This is a schematic diagram of the right side of the guide rail assembly of this utility model; Figure 4 This is a schematic diagram of the structure on the right side of the first connecting component of this utility model; Figure 5 This is a schematic diagram of the left side of the first connecting component of this utility model; Figure 6 This is a schematic cross-sectional view of the left side of the first connecting component of this utility model; Figure 7 This is a schematic diagram of the right side structure of the second connecting component of this utility model; Figure 8 This is a schematic diagram of the left side of the second connecting component of this utility model; Figure 9 This is a right-side cross-sectional view of the first connecting component and the second connecting component of this utility model.

[0029] In the diagram: 1. Guide rail assembly; 101. Guide rail; 102. First groove; 103. First threaded groove; 104. Second groove; 105. Second threaded groove; 2. First connecting assembly; 201. First connecting block; 202. First threaded hole; 203. First bolt; 204. Connecting groove; 205. First protrusion; 206. Second bolt; 3. Second connecting assembly; 301. Second connecting block; 302. Second protrusion; 303. Third bolt; 304. Second threaded hole; 4. Slider. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0031] Example: Please refer to Figure 1-9 The illustrated linear guide rail includes a guide rail assembly 1, a first connecting assembly 2, a second connecting assembly 3, and a slider 4.

[0032] The guide rail assembly 1 includes a guide rail 101, a first groove 102 and a second groove 104 formed at both ends of the guide rail 101, a first threaded groove 103 formed in the first groove 102, and a second threaded groove 105 formed in the second groove 104.

[0033] The first connecting component 2 includes a first connecting block 201, two first threaded holes 202 obliquely upward and downward on both sides of the first connecting block 201, a first bolt 203 disposed in the first threaded hole 202, a connecting groove 204 disposed on the top of the first connecting block 201, a first protrusion 205 fixed to the outer surface of the first connecting block 201, and a second bolt 206 threaded through the first connecting block 201 and the connecting groove 204.

[0034] The second connecting assembly 3 includes a second connecting block 301, a second protrusion 302 fixed to the outer surface of the second connecting block 301, a third bolt 303 threaded through the second connecting block 301 and the second protrusion 302, and two second threaded holes 304 obliquely upward and downward on both sides of the second connecting block 301. The slider 4 is slidably fitted on the guide rail 101 to bear the load and realize linear motion.

[0035] Based on the aforementioned structural features and connection relationships, the splicable linear guide rail of this invention can achieve rapid and stable splicing of multiple guide rail segments. The specific implementation method is as follows: In this embodiment, specific references Figure 1 The overall structure shows the state in which the guide rail assembly 1 is spliced ​​together by the first connecting component 2 and the second connecting component 3. The slider 4 is installed on the guide rail 101 and can slide smoothly along the length of the guide rail. During splicing, the first connecting component 2 and the second connecting component 3 are located at the ends of the two sections of the guide rail to be connected, and a firm connection is achieved by bolts and magnetic attraction.

[0036] The guide rail 101 has a first groove 102 and a second groove 104 at both ends. The grooves have a first threaded groove 103 and a second threaded groove 105 respectively. The first groove 102 is used to accommodate the second protrusion 302, and the second groove 104 is used to accommodate the first protrusion 205. Through magnetic attraction, the first protrusion 205 and the second groove 104, and the second protrusion 302 and the first groove 102 are initially aligned and temporarily fixed, which simplifies the installation process.

[0037] In this embodiment, specific references Figure 2 and Figure 3 The structural details of the left and right ends of the guide rail assembly are shown. Figure 2 In the middle, the left end of the guide rail is provided with a first groove 102 and a first threaded groove 103; Figure 3 In the middle, the right end of the guide rail is provided with a second groove 104 and a second threaded groove 105, which provide a basis for the installation of the connecting components.

[0038] Among them, the first protrusion 205 and the second protrusion 302 are both magnetic blocks, which use magnetic force to achieve quick insertion and alignment, ensuring stability in the initial stage of splicing and reducing manual adjustment time.

[0039] In this embodiment, specific references Figure 4 , Figure 5 and Figure 6 The structure of the first connecting component 2 is shown in detail. The first connecting block 201 has first threaded holes 202 on both sides for installing the first bolt 203. The top of the first connecting block 201 has a connecting groove 204, the cross-section of which is preferably dovetail-shaped, for complementary cooperation with the second connecting block 301. The outer surface of the first connecting block 201 is fixed with a first protrusion 205. The second bolt 206 is threaded through the first connecting block 201 and the connecting groove 204. The connecting groove 204 has a second mounting groove. The nut end of the second bolt 206 is located in the second mounting groove to avoid the bolt head being exposed and to prevent interference and friction.

[0040] In this embodiment, specific references Figure 7 and Figure 8 The structure of the second connecting component 3 is shown in detail. The second protrusion 302 is fixed to the outer surface of the second connecting block 301. The third bolt 303 is threaded through the second connecting block 301 and the second protrusion 302. The second connecting block 301 has second threaded holes 304 on both sides for mating with the first bolt 203. The second connecting block 301 has a first mounting groove, and the first threaded hole 202 communicates with the first mounting groove. The nut end of the first bolt 203 is located in the first mounting groove to ensure that the bolt head does not protrude and improve safety. The second connecting block 301 also has a third mounting groove, and the nut end of the third bolt 303 is located in the third mounting groove to optimize space utilization.

[0041] In this embodiment, specific references Figure 9 The diagram shows the right-side cross-sectional structure of the first connecting component 2 and the second connecting component 3 being assembled. During assembly, the second connecting block 301 is inserted into the connecting groove 204 of the first connecting block 201. Since the cross-sections of the connecting groove 204 and the second connecting block 301 are complementary dovetail structures, a mechanical interlock is formed to prevent separation. The threaded end of the first bolt 203 is threaded into both the second threaded hole 304 and the first threaded hole 202 to achieve bidirectional fastening. The end of the second bolt 206 is threaded into the second threaded groove 105, and the end of the third bolt 303 is threaded into the first threaded groove 103 to further strengthen the connection.

[0042] In operation, the linear guide rails of this design can be spliced ​​together in multiple sections 101 to the required length via the first connecting component 2 and the second connecting component 3. During the splicing process, magnetic blocks (first protrusion 205 and second protrusion 302) are first used for initial alignment and fixation, and then the first bolt 203, the second bolt 206, and the third bolt 303 are tightened in sequence to ensure a firm connection. The slider 4 can slide continuously on the spliced ​​guide rails to achieve linear movement of the load.

[0043] Through the above structure, this utility model realizes the modular splicing of linear guide rails, which is easy to install and has a stable connection. It is suitable for linear motion scenarios with various length requirements, such as automated equipment and precision machinery.

[0044] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art and are also general components, which are common knowledge in this field.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A splicable linear guide rail, characterized in that, include: The guide rail assembly (1) includes a guide rail (101), a first groove (102) and a second groove (104) formed at both ends of the guide rail (101), a first threaded groove (103) formed in the first groove (102) and a second threaded groove (105) formed in the second groove (104). The first connecting component (2) includes a first connecting block (201), two first threaded holes (202) obliquely upward and downward on both sides of the first connecting block (201), a first bolt (203) disposed in the first threaded hole (202), a connecting groove (204) disposed on the top of the first connecting block (201), a first protrusion (205) fixed on the outer surface of the first connecting block (201), and a second bolt (206) threaded through the first connecting block (201) and the connecting groove (204) respectively. The second connecting component (3) includes a second connecting block (301), a second protrusion (302) fixed on the outer surface of the second connecting block (301), a third bolt (303) threaded through the second connecting block (301) and the second protrusion (302), and two second threaded holes (304) opened obliquely upward and obliquely downward on both sides of the second connecting block (301). The threaded end of the first bolt (203) is threadedly engaged with the second threaded hole (304) and the first threaded hole (202). The connecting groove (204) matches the cross-section of the second connecting block (301). The first protrusion (205) is magnetically engaged with the second groove (104). The end of the second bolt (206) is threadedly engaged with the second threaded groove (105). The end of the third bolt (303) is threadedly engaged in the first threaded groove (103). The second protrusion (302) is magnetically engaged in the first groove (102).

2. The splicable linear guide rail according to claim 1, characterized in that: The second connecting block (301) has a first mounting groove, the first threaded hole (202) communicates with the first mounting groove, and the nut end of the first bolt (203) is located in the first mounting groove.

3. The splicable linear guide rail according to claim 1, characterized in that: The connecting groove (204) is provided with a second mounting groove, and the nut end of the second bolt (206) is located in the second mounting groove.

4. The splicable linear guide rail according to claim 1, characterized in that: The second connecting block (301) has a third mounting groove, and the nut end of the third bolt (303) is located in the third mounting groove.

5. A splicable linear guide rail according to claim 1, characterized in that: Both the first protrusion (205) and the second protrusion (302) are magnetic blocks.

6. A splicable linear guide rail according to claim 1, characterized in that: The cross-sections of the connecting groove (204) and the second connecting block (301) are complementary dovetail structures.

7. A splicable linear guide rail according to claim 1, characterized in that: The threaded end of the first bolt (203) is threaded together with the second threaded hole (304) and the first threaded hole (202).

8. A splicable linear guide rail according to claim 1, characterized in that: The slider (4) is slidably fitted on the guide rail (101).

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