Splicing type linear guide rail

Abstract

The embodiment of the utility model provides a splicing type linear guide rail, and relates to the technical field of linear guide rails, the splicing type linear guide rail comprises a guide rail body, the guide rail body is composed of a plurality of splicing rails, and the upper end of one side of each splicing rail is provided with a slot. The side face splicing rail can be inserted into another splicing rail inserting groove through the inserting block to achieve rapid butt joint, the inclined face of the limiting block is guided to enable the side plate to extrude the spring when the side face splicing rail is inserted into the splicing rail inserting groove, and the spring resets to enable the limiting block to be inserted into the limiting groove to be clamped after the side face splicing rail is in place. According to the design, the splicing rail can be flexibly installed, the length of the guide rail is prolonged, stability is high, screw installation is not needed, the whole guide rail can be more conveniently disassembled and maintained, replacement can be achieved when a certain section is damaged, the whole structure does not need to be replaced, cost is low, disassembly and assembly are convenient, follow-up maintenance is facilitated, time is saved, efficiency is improved, and use is convenient.

Description

Technical Field

[0001] The present application relates to the technical field of linear guide rails, and in particular to a spliced linear guide rail. Background Art

[0002] A linear guide is a mechanical component used to achieve linear motion. It usually consists of two parts: a guide rail and a slider. The guide rail is a fixed, long strip structure with a high-precision straight shape and a smooth surface. The slider is installed on the guide rail and can slide precisely in a straight line along the guide rail. Linear guides have many advantages, such as high precision, high rigidity, low friction, and high-speed motion. They are widely used in various mechanical equipment, such as CNC machine tools, automated production lines, printing machinery, medical equipment, etc. Linear guides can ensure the motion accuracy and stability of the equipment, improve production efficiency and product quality. At the same time, there are many types of linear guides, and you can choose the appropriate type and specifications according to different application requirements.

[0003] Currently, existing linear guides require linear guides of different lengths during application. Some linear guides that are too long are very inconvenient to transport and transfer, take up a lot of space during transfer, and are easily damaged. The installation efficiency is low, and when the linear guide is damaged, the entire linear guide usually needs to be replaced. As a whole, the use has certain defects and shortcomings.

[0004] It adopts an assembled structure of the first guide rail and the second guide rail, so that the linear guide rail can be presented in the form of segments. This design brings a wide range of application scenarios. It can be flexibly spliced and assembled according to actual needs, and it is also extremely convenient when disassembly is required. In terms of transportation, this segmented structure makes the linear guide rail more convenient to transport, and at the same time, the safety is also significantly improved. It is not easy to be damaged during transportation and transfer, and has high economy. The connecting part is embedded in the connecting groove and fixed by bolts. This design greatly enhances the stability of the linear guide rail after assembly, realizes seamless connection between the guide rails, and effectively guarantees the normal operation after the guide rail connection is completed. Overall, the linear guide rail is generally high in economy, convenience and practicality.

[0005] However, this linear guide rail also has some shortcomings in its actual use. Screws are used to assist in installation as a whole, which means that during use, professional screwdrivers and other tools are usually required to assist in disassembly, assembly and replacement. As a result, its overall use, disassembly and maintenance become more cumbersome and inconvenient. Moreover, during long-term use, the screws are very likely to slip due to the sliding of the slider, or the accumulation of dust and rust inside, which makes it difficult to twist and disassemble. In view of this, this linear guide rail needs further improvement to improve its convenience and reliability. Utility Model Content

[0006] The embodiment of the present application provides a spliced linear guide rail to solve the problem that the current spliced linear guide rail is installed with screws and is not convenient to disassemble and assemble quickly when maintenance is required.

[0007] The embodiment of the present application provides a spliced linear guide rail, including a guide rail body, wherein the guide rail body is composed of several spliced rails: a slot is provided at the upper end of one side of the spliced rail, an insert block is fixedly connected to the upper end of the other side of the spliced rail, the insert block and the slot correspond in shape and size, the insert blocks on the spliced rail are inserted into the slot of the other spliced rail, a clamping mechanism is fixedly installed at the lower end of the spliced rail near the insert block, a fitting groove is provided at the lower end of the spliced rail near the slot, limiting grooves are provided on both sides of the fitting groove, the clamping mechanism is inserted into the fitting groove and clamped with the limiting groove, the spliced rails are clamped to each other through the clamping mechanism, and a mounting mechanism is fixedly installed at the bottom of the spliced rail in the middle;

[0008] The clamping mechanism includes a groove body, which is opened at the end of the splicing rail away from the limit groove, and a base plate is fixedly installed inside the groove body. Clamping springs are fixedly connected to both sides of the base plate at equal intervals, and a side plate is fixedly installed on the outer side of the clamping spring. A limit block is fixedly installed on the outer side of the side plate away from the guide rail body, and the limit block is inserted into the inside of the limit groove.

[0009] In a feasible implementation, a pull ring is fixedly installed on the inner middle portion of the side plate, and the overall cross-sectional shape of the slot and the insert block is set to be a convex shape.

[0010] In a feasible implementation, the mounting mechanism includes a pillar and a mounting rail, the pillar is fixedly installed in the middle of the bottom of the central splicing rail, a mounting block is fixedly installed at the bottom of the pillar, a limiting component is fixedly installed on the rear side of the mounting rail, the mounting block is slidably connected to the inner side of the mounting rail, and the mounting block is mounted on the inner side of the mounting rail through the limiting component.

[0011] In a feasible implementation, the limit assembly includes a rail frame and a card slot, the rail frame is fixedly installed on the back of the mounting rail, the inner sides of the rail frame are fixedly connected to the limit springs, the outer ends of the limit springs are fixedly installed with slides, the slides are slidably connected to the inner ends of the rail frame, the outer side of the slide is fixedly installed with a limit arm, the inner front end of the limit arm is fixedly connected with a card block, the card slots are opened at the front ends of both sides of the mounting rail and on both sides of the mounting block, and the card block is inserted into the inside of the card slots.

[0012] In a feasible implementation, a guide slope is provided on the outer side of the limit block away from the splicing rail, and a guide slope is also provided on the inner side of the front end of the clamping block. The limit block and the clamping block are shaped like a right-angled trapezoid.

[0013] In a feasible implementation, a movable block is slidably connected to the middle of the upper end of the back side of the rail frame, an extrusion guide plate is fixedly installed on the rear side of the movable block, and the extrusion guide plate is arranged in an arrow shape. Guide blocks are fixedly connected to both sides of the back side of the slide, and guide slopes are also provided on the top inner side of the guide block and the bottom sides of the extrusion guide plate. The guide slopes of the guide block and the extrusion guide plate are fit together.

[0014] In a feasible implementation, support blocks are fixedly installed at the bottom of the splicing rails on both sides, support plates are fixedly installed at the bottom of the support blocks and the bottom of the mounting rails, and mounting holes are opened at the four corners of the support plates.

[0015] The embodiment of the present application provides a spliced linear guide rail, which is provided with an installation mechanism. When installing, the installation block at the bottom of the spliced rail is inserted into the installation rail, and the installation block squeezes the inclined surface of the card block to move the card block outward. After the installation block is fully inserted, the limit spring resets to insert the card block into the card slot of the installation block to achieve rapid card connection. When dismantling and maintenance, the extrusion guide plate is pushed downward, and its inclined surface and the guide block guide open the slide, driving the card block to disengage from the card slot of the installation block. The installation block loses its limit and can be withdrawn, which facilitates the rapid disassembly and replacement of the spliced rail and the overall connection structure of the guide rail body. This mechanism greatly improves the convenience of installation and disassembly of the guide rail, saving time and labor costs.

[0016] This device is provided with a clamping mechanism. After the middle splicing rail is installed, the side splicing rail can be inserted into the other splicing rail slot through the insertion block to achieve quick docking. When inserting, the inclined surface of the limit block is guided to squeeze the side plate into the spring. After it is in place, the spring resets to insert the limit block into the limit slot for clamping. When disassembly is required, the pull ring is manually pulled to move the side plate inward and the limit block is pulled out to separate the guide rail body. This design can flexibly install the splicing rail, extend the length of the guide rail and has strong stability. It does not require screw installation and the overall disassembly and maintenance is more convenient. When a section is damaged, it can be replaced without replacing the entire structure. The cost is low and the disassembly and assembly are convenient, which is conducive to subsequent maintenance, saves time, improves efficiency and is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present application and do not constitute an improper limitation on the present invention.

[0018] In the attached figure:

[0019] Figure 1This is a schematic diagram of the overall structure provided by an embodiment of the present application;

[0020] Figure 2 This is a bottom-up structural diagram provided by an embodiment of the present application;

[0021] Figure 3 This is a schematic diagram of the installation mechanism structure provided by an embodiment of the present application;

[0022] Figure 4 This is a schematic diagram of the structure of the installation mechanism provided in an embodiment of the present application in a disassembled state;

[0023] Figure 5 This embodiment of the present application provides Figure 2 A schematic diagram of the enlarged structure.

[0024] Description of reference numerals:

[0025] 100-Guide rail body; 110-Joint rail; 200-Slot; 300-Insert block; 400-Limiting slot; 500-Matching slot; 600-Card mounting mechanism; 700-Installation mechanism;

[0026] 610-trough body; 620-base plate; 630-clamping spring; 640-side plate; 650-limiting block; 660-pull ring;

[0027] 710-pillar; 720-mounting rail; 730-mounting block; 740-limiting assembly;

[0028] 741-rail frame; 742-card slot; 743-limiting spring; 744-slide; 745-limiting arm; 746-card block; 747-guide slope; 748-movable block; 749-extrusion guide plate; 7410-guide block; 7411-support plate; 7412-mounting hole; 7413-support block. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solutions in this application, the following will provide a clear and complete description of the technical solutions in the embodiments of this application in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0030] Example

[0031] refer to Figures 1 to 5The present embodiment is a spliced linear guide rail, comprising a guide rail body 100, which is composed of a plurality of spliced rails 110: a slot 200 is provided on the upper end of one side of the spliced rail 110, and an insert 300 is fixedly connected to the upper end of the other side of the spliced rail 110. The insert 300 corresponds to the shape and size of the slot 200. The insert 300 on the spliced rail 110 is inserted into the slot 200 of another spliced rail 110. The spliced rail 110 is close to the slot 200. A clamping mechanism 600 is fixedly installed at the lower end of one side near the insertion block 300, and an interlocking groove 500 is provided at the lower end of the side of the splicing rail 110 close to the slot 200. Limiting grooves 400 are provided on both sides of the interlocking groove 500. The clamping mechanism 600 is inserted into the interior of the interlocking groove 500 and is clamped with the limiting groove 400. The splicing rails 110 are clamped to each other through the clamping mechanism 600, and an installation mechanism 700 is fixedly installed at the bottom of the splicing rail 110 in the middle.

[0032] The clamping mechanism 600 includes a groove body 610, which is opened at the end of the splicing rail 110 away from the limiting groove 400. A base plate 620 is fixedly installed inside the groove body 610, and clamping springs 630 are fixedly connected to both sides of the base plate 620 at equal intervals. A side plate 640 is fixedly installed on the outside of the clamping spring 630, and a limiting block 650 is fixedly installed on the outside of the side plate 640 away from the guide rail body 100. The limiting block 650 is inserted into the inside of the limiting groove 400. The guide rail body 100 composed of several splicing rails 110 can be flexibly spliced according to actual needs, and the guide rail length can be easily adjusted. The slot 200 on one side of the splicing rail 110 corresponds to the plug block 300 on the other side, so that the connection between the splicing rails 110 is tighter and more stable. The design of the clamping mechanism 600 is ingenious. When the insert block 300 is inserted into the slot 200, the limiting block 650 can be smoothly inserted into the interlocking groove 500 after squeezing the clamping spring 630 through the side plate 640 under the action of the guiding slope 747. When it contacts the limiting groove 400, the clamping spring 630 resets and pushes the limiting block 650 into the limiting groove 400 to achieve clamping, ensuring that the connection between the splicing rails 110 is firm. The clamping mechanism 600 makes it easy to disassemble and assemble the guide rails. When a certain section of the splicing rail 110 is damaged, it can be replaced independently without replacing the entire guide rail structure, reducing the cost of use, facilitating subsequent maintenance, saving installation and maintenance time, and improving work efficiency. The bottom mounting mechanism 700 of the splicing rail 110 located in the middle further enhances the overall stability and practicality of the guide rail.

[0033] A pull ring 660 is fixedly mounted on the inner center portion of the side plate 640. The overall cross-sectional shape of the slot 200 and the insert block 300 is configured as a convex U-shaped structure. The pull ring 660 fixedly mounted on the inner center portion of the side plate 640 facilitates the assembly and disassembly of the guide rail. When the splicing rail 110 needs to be disassembled, the pull ring 660 can be moved inward by using the thumb and index finger, thereby withdrawing the limit block 650 from the limit slot 400, allowing the guide rail body 100 to be quickly disassembled and separated into the individual splicing rails 110. The overall cross-sectional shape of the slot 200 and the insert block 300 is configured as a convex U-shaped structure. This design ensures a tighter and more stable connection between the splicing rails 110. The convex U-shaped structure prevents the insert block 300 from accidentally disengaging from the slot 200 to a certain extent, thereby improving the reliability of the guide rail during use and ensuring that the guide rail body 100 can maintain a good connection under various operating conditions, providing a strong guarantee for the normal operation of the linear guide.

[0034] The mounting mechanism 700 includes a pillar 710 and a mounting rail 720. The pillar 710 is fixedly installed in the middle of the bottom of the central splicing rail 110. A mounting block 730 is fixedly installed at the bottom of the pillar 710. A limiting component 740 is fixedly installed on the rear side of the mounting rail 720. The mounting block 730 is slidably connected to the inner side of the mounting rail 720. The mounting block 730 is mounted on the inner side of the mounting rail 720 through the limiting component 740. The pillar 710 is fixedly installed in the middle of the bottom of the central splicing rail 110, providing stable support for the entire guide rail. The mounting block 730 at the bottom of the pillar 710 cooperates with the mounting rail 720, and the mounting block 730 can be slidably connected to the inner side of the mounting rail 720, making the installation process smoother. The mounting block 730 is clamped and installed on the inner side of the mounting rail 720 through the limiting component 740, ensuring the firmness and stability of the installation. This mounting mechanism 700 makes the installation and disassembly of the guide rail more convenient. When maintenance or replacement of part of the splicing rail 110 is required, the mounting block 730 can be quickly removed from the mounting rail 720, thereby improving work efficiency. Moreover, this design can adapt to different installation environments and requirements, and increases the versatility and practicality of the guide rail.

[0035] When the locking cam 742 is in the state of being rotated, the locking cam 742 is in the state of being rotated, and the locking cam 742 is in the state of being rotated. When the locking cam 746 is in the unlocked position, the locking cam 746 is locked and the locking cam 746 is locked. The design of the guide slope 747 and the right-angled trapezoidal block 746 and the limit block 650 can better realize the guiding and clamping functions, ensuring the stability and reliability of the guide rail installation.

[0036] The middle part of the upper end of the back of the rail frame 741 is slidably connected with a movable block 748, and an extrusion guide plate 749 is fixedly installed on the rear side of the movable block 748. The extrusion guide plate 749 is arranged in an arrow shape. Guide blocks 7410 are fixedly connected to both sides of the back of the slide 744. Guide slopes 747 are also provided on the top inner side of the guide block 7410 and the bottom sides of the extrusion guide plate 749. The guide slopes 747 of the guide block 7410 and the extrusion guide plate 749 are fitted together. Support blocks 7413 are fixedly installed on the bottom of the splicing rails 110 on both sides. The bottom of the support block 7413 and the mounting rail 720 are fixedly connected. A support plate 7411 is fixedly installed at the bottom, and mounting holes 7412 are provided at the four corners of the support plate 7411. A movable block 748 is slidably connected to the middle of the upper end of the back of the rail frame 741, and an extrusion guide plate 749 on the rear side. The arrow-shaped extrusion guide plate 749 is uniquely designed. When the guide rail needs to be removed, the extrusion guide plate 749 is pushed downward, and it fits into the guiding inclined surfaces 747 of the guide blocks 7410 on both sides of the back of the slide 744. Through the action of the guiding inclined surfaces 747, the slide 744 can be propped open, prompting the card block 746 to disengage from the card slot 742, thereby realizing quick disassembly and convenient and quick operation. The support plates 7411 located at the bottom of the splicing rails 110 on both sides and the bottom of the mounting rails 720 provide stable support for the guide rails. The support blocks 7413 cooperate with the support plates 7411 to strengthen the support of the splicing rails 110 and improve their overall stability. If a more stable installation is required during use, the splicing rails 110 can be further fixed and installed through the mounting holes 7412 through bolts after the assembly and installation is completed, thereby improving their stability and making the guide rails more stable and reliable during use, thereby improving the overall practicality and stability of the guide rails.

[0037] The principle and advantages of use are as follows: by setting the installation mechanism 700, when the guide rail needs to be installed during actual application, the installation block 730 at the bottom of the splicing rail 110 with the support 710 can be inserted into the interior of the installation rail 720. During this process, the installation block 730 will squeeze the guide slope 747 of the block 746. When the guide slope 747 of the block 746 is squeezed and abutted, it will prompt the block 746, the limit arm 745 and the slide 744 to move outward. At this time, the limit When the locking cam 746 is in the closed position, the locking cam 746 will be in the open position, and the locking cam 746 will be in the open position, so that the locking cam 746 can be adjusted to the desired position and the locking cam 746 can be adjusted to the desired position. When the guide rail body 100 needs to be dismantled for inspection, it is only necessary to push the extrusion guide plate 749 downward. After the extrusion guide plate 749 moves downward, it will contact the guide block 7410. The guiding slope 747 of the extrusion guide plate 749 and the guiding slope 747 of the guide block 7410 guide each other, thereby stretching the slide 744, causing the slide 744 to move outward and drive the limiting arm 745 to pull the card block 746 out of the card slot 742 of the mounting block 730. At this time, the mounting block 730 inside the mounting rail 720 loses its limit, and the mounting block 730 can be quickly pulled out from the inner side of the mounting rail 720, which greatly facilitates the rapid disassembly and replacement of the splicing rail 110 and the overall connection structure of the guide rail body 100.

[0038] By setting up the clamping mechanism 600, during the use of the device, when the splicing rail 110 located in the middle is installed, if the splicing rail 110 located on the side needs to be removed, the plug block 300 on the splicing rail 110 can be inserted into the slot 200 of another splicing rail 110. During the insertion process, the guide slope 747 on the limit block 650 will contact the inner wall of the fitting groove 500, and the auxiliary guidance of the guide slope 747 can cause the side plate 640 to be squeezed and clamped. The spring 630 contracts, and after the clamping spring 630 contracts, the limit block 650 can be completely inserted into the interior of the interlocking groove 500. When the limit block 650 contacts the limit groove 400, the limit block 650 loses its limit, and the clamping spring 630 resets to push the limit block 650 to insert into the inner side of the limit groove 400. The limit groove 400 and the limit block 650 are clamped with each other, and then the various splicing rails 110 can be quickly docked, so that the guide rail as a whole can be used according to the specific The guide rail body 100 can be quickly and flexibly installed according to the needs of the user, and the length of the guide rail body 100 can be extended according to the needs of use. At the same time, the slots 200 and the plug blocks 300 are plugged into each other to make the guide rail body 100 have strong stability. In addition, during its use, if it is necessary to disassemble and assemble the separate splicing rail 110, the user can put his hand into the bottom of the splicing rail 110. At this time, the thumb and index finger can move the pull ring 660 to drive the side plate 640 to move inward. The inward movement of the side can pull the limit block 650 out of the limit groove 400, and the guide rail body 100 can be quickly disassembled and assembled. This design makes it convenient to disassemble the guide rail body 100 into individual splicing rails 110, and also facilitates independent replacement and disassembly when a certain section of the splicing rail 110 is damaged. On the one hand, this disassembly and assembly design does not require replacing the entire guide rail structure, and the cost of use is low; on the other hand, the convenient disassembly and assembly also facilitates subsequent maintenance and replacement, further saving installation and maintenance time, improving work efficiency, and facilitating use.

[0039] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application based on the several embodiments provided in the present application to obtain other embodiments, and these embodiments do not exceed the scope of protection of the present application.

[0040] The above specific implementation methods further explain in detail the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above are only specific implementation methods of the embodiments of the present application and are not intended to limit the scope of protection of the embodiments of the present application. Any modifications, equivalent replacements, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the scope of protection of the embodiments of the present application.

Claims

1. A spliced linear guide rail, characterized in that: The invention comprises a guide rail body (100), wherein the guide rail body (100) is composed of a plurality of splicing rails (110): a slot (200) is provided at the upper end of one side of the splicing rail (110), and an insert block (300) is fixedly connected to the upper end of the other side of the splicing rail (110), wherein the insert block (300) and the slot (200) have corresponding shapes and sizes, and the insert blocks (300) on the splicing rail (110) are all inserted into the slot (200) of another splicing rail (110), and the splicing rail (110) is close to the insert block (300). 0) is fixedly installed with a clamping mechanism (600) at the lower end of one side of the splicing rail (110), a fitting groove (500) is provided at the lower end of one side of the splicing rail (110) close to the slot (200), and limiting grooves (400) are provided on both sides of the splicing groove (500), the clamping mechanism (600) is inserted into the fitting groove (500) and is clamped with the limiting groove (400), the splicing rails (110) are clamped with each other through the clamping mechanism (600), and a mounting mechanism (700) is fixedly installed at the bottom of the splicing rail (110) located in the middle; The clamping mechanism (600) comprises a groove body (610), wherein the groove body (610) is provided at one end of the splicing rail (110) away from the limiting groove (400), a base plate (620) is fixedly installed inside the groove body (610), and clamping springs (630) are fixedly connected to both sides of the base plate (620) at equal intervals, and a side plate (640) is fixedly installed on the outer side of the clamping spring (630), and a limiting block (650) is fixedly installed on the outer side of the side plate (640) away from the guide rail body (100), and the limiting block (650) is inserted into the inner side of the limiting groove (400).

2. The spliced linear guide rail according to claim 1, characterized in that: A pull ring (660) is fixedly mounted on the inner middle portion of the side plate (640), and the overall cross-sectional shape of the slot (200) and the insert block (300) is both configured as a convex shape.

3. The spliced linear guide rail according to claim 1, characterized in that: The mounting mechanism (700) comprises a pillar (710) and a mounting rail (720), wherein the pillar (710) is fixedly mounted in the middle of the bottom of the centralmost splicing rail (110), a mounting block (730) is fixedly mounted on the bottom of the pillar (710), a limiting assembly (740) is fixedly mounted on the rear side of the mounting rail (720), the mounting block (730) is slidably connected to the inner side of the mounting rail (720), and the mounting block (730) is mounted on the inner side of the mounting rail (720) by snap-fitting the limiting assembly (740).

4. The spliced linear guide rail according to claim 3, characterized in that: The limiting assembly (740) includes a rail frame (741) and a card slot (742). The rail frame (741) is fixedly installed on the back of the mounting rail (720). The inner sides of the rail frame (741) are fixedly connected to the limiting springs (743). The outer ends of the limiting springs (743) are fixedly installed with slides (744). The slides (744) are slidably connected to the inner ends of the rail frame (741). The outer sides of the slides (744) are fixedly installed with limiting arms (745). The inner front ends of the limiting arms (745) are fixedly connected with card blocks (746). The card slots (742) are opened at the front ends of both sides of the mounting rail (720) and the two sides of the mounting block (730). The card blocks (746) are inserted into the inner sides of the card slots (742).

5. The spliced linear guide rail according to claim 4, characterized in that: A guide slope (747) is provided on the outer side of the limit block (650) away from the splicing rail (110), and a guide slope (747) is also provided on the inner side of the front end of the clamping block (746). The limit block (650) and the clamping block (746) are arranged in a right-angled trapezoidal shape.

6. The spliced linear guide rail according to claim 5, characterized in that: A movable block (748) is slidably connected to the middle of the upper end of the back side of the rail frame (741), and an extrusion guide plate (749) is fixedly installed on the rear side of the movable block (748). The extrusion guide plate (749) is arranged in an arrow shape. Guide blocks (7410) are fixedly connected to both sides of the back side of the slide (744). The inner side of the top of the guide block (7410) and the two sides of the bottom of the extrusion guide plate (749) are also provided with guide inclined surfaces (747). The guide blocks (7410) and the guide inclined surfaces (747) of the extrusion guide plate (749) are fitted and connected to each other.

7. The spliced linear guide rail according to claim 6, characterized in that: The bottoms of the splicing rails (110) on both sides are fixedly mounted with support blocks (7413), the bottoms of the support blocks (7413) and the bottoms of the mounting rails (720) are fixedly mounted with support plates (7411), and the four corners of the support plates (7411) are provided with mounting holes (7412).

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