Splicing type linear sliding block
The double-layer ball bearing device and end cover structure of the spliced linear slider solve the problems of difficult maintenance and high friction resistance of the existing linear slider, and achieve efficient and stable sliding and noise reduction.
Patent Information
- Application Number
- CN202520084786.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2035-01-14
AI Technical Summary
Existing linear sliders are difficult to repair or replace parts and have high friction resistance, which affects the operating speed and accuracy of the equipment.
A spliced linear slider is designed, which adopts a double-layer ball bearing device and end cover structure. It is firmly connected through screw and bolt fixing devices, and the sealing is increased, vibration and noise are reduced, ensuring the stability and efficient sliding of the slider in high-frequency use.
It achieves a stable connection of the slider, reduces friction resistance, improves sliding efficiency and stability, reduces vibration and noise, and improves the overall strength and reliability of the equipment.
Smart Images

Figure CN223483175U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of linear slider technology, specifically to a splicing linear slider. Background Art
[0002] A linear slider is a mechanical component, also known as a linear slide table or linear motion slide module. Its main function is to achieve high-precision linear motion. This type of slider typically consists of a slider body, transmission components, and a drive unit.
[0003] Existing linear sliders present significant challenges when requiring maintenance or parts replacement. Internal components may be tightly fixed together, necessitating specialized tools or techniques for disassembly. This not only increases maintenance time and costs but can also cause unnecessary damage to the slider. Furthermore, existing linear sliders utilize a single-layer ball bearing mechanism, resulting in low sliding efficiency and high frictional resistance, impacting the equipment's operating speed and accuracy. Utility Model Content
[0004] To solve the above problems, this utility model provides a splicing linear slider:
[0005] A modular linear slider includes a slider body with end caps at its front and rear ends. The end caps are divided into a first end cap and a second end cap. The first end cap is located at the front end of the slider body, and the second end cap is located at the rear end of the slider body. Silicone covers are provided on the outer surfaces of both end caps. These silicone covers are also divided into a first silicone cover and a second silicone cover. The first silicone cover is located outside the first end cap, and the second silicone cover is located outside the second end cap. A sliding opening is provided on the slider body, and a double-layer ball bearing device is provided inside the slider body, located at both ends of the sliding opening. The slider is divided into a first ball bearing layer and a second ball bearing layer, with the first ball bearing layer located above the second ball bearing layer. A ball bearing limiting block is provided between the first and second ball bearing layers at the sliding opening. A first screw fixing device, a second screw fixing device, and a bolt fixing device are provided between the slider body, the end cap, and the silicone cap, which increases the overall stability of the slider, achieves a firm connection, and ensures that the slider can maintain stable performance during high-frequency and high-intensity use. This provides higher sliding efficiency and a smoother sliding experience, effectively reduces vibration and noise during slider movement, and improves the overall strength and stability of the slider.
[0006] Preferably, the double-layer ball bearing device includes a ball bearing channel, an installation groove at the port of the ball bearing channel, a ball bearing mounting strip on the ball bearing channel, and balls inside the ball bearing mounting strip, making it more stable, durable, and easy to maintain and install.
[0007] Preferably, the ball bearing mounting strip includes a first connecting strip and a second connecting strip, a ball bearing holder is provided between the first connecting strip and the second connecting strip, and a ball bearing mounting groove is provided between the two ball bearing holders. The first connecting strip is located above the ball bearing holder, and the second connecting strip is located below the ball bearing holder, which improves the performance and stability of the slider.
[0008] Preferably, the end cap includes a positioning post, a splicing device, and a ball return device, and a sealing block is embedded in the inner side of the end cap, which greatly improves the sealing performance of the linear slider.
[0009] Preferably, the splicing device includes a connecting limiting strip and a connecting base. The connecting base has arc-shaped supports on its left and right sides. The connecting limiting strip is used to limit the first ball bearing layer, and the connecting base is used to limit the second ball bearing layer.
[0010] Preferably, the first end cap has a first fixing hole at the port of the connecting limiting strip, and the second end cap has a first fixing post at the port of the connecting limiting strip. The first fixing post is fixed in place corresponding to the first fixing hole, and the arc-shaped support provides stable support, ensuring the precise sliding and reliable operation of the ball layer.
[0011] Preferably, a second fixing hole is provided at the connecting base port on the first end cover, and a second fixing post is provided at the connecting base port on the second end cover, which effectively improves the stability and durability of the linear slider.
[0012] Preferably, the ball return device includes a ball return channel corresponding to the ball channel, and the inner side of the end cap is provided with a ball return port. The ball return port is provided with an arc-shaped protrusion, which corresponds to the mounting groove, ensuring smooth return and accurate installation of the balls, and improving the reliability and performance of the linear slider.
[0013] Preferably, the ball bearing limiting block includes a limiting block, a connecting protrusion strip is fixedly connected to the side of the limiting block, the slider body is provided with a snap-fit groove corresponding to the connecting protrusion strip, and positioning holes are provided at both ends of the limiting block. The positioning holes correspond to the positioning posts, which enhances its positioning accuracy and stability, and ensures precise control of the ball bearing during movement.
[0014] Preferably, the first screw fixing device passes through the end cap and is threadedly connected to the slider body, the second screw fixing device passes through the end cap from the silicone cover side and is threadedly connected to the slider body, and the bolt fixing device passes through the silicone cover and is threadedly connected to the end cap, which improves the overall robustness of the linear slider and ensures the overall stability and reliability.
[0015] The beneficial effects of this utility model are:
[0016] 1. The end cap design increases the overall stability of the slider. The first screw fixing device, the second screw fixing device, and the bolt fixing device ensure a firm connection between the slider body, the end cap, and the silicone cap, ensuring that the slider maintains stable performance even during high-frequency and high-intensity use. The silicone cap design not only increases the overall sealing of the slider, preventing dust and impurities from entering the slider, but also effectively reduces vibration and noise during the slider's movement, providing a quieter working environment.
[0017] 2. The double-layer ball bearing device design provides higher sliding efficiency and smoother sliding, effectively reducing frictional resistance during sliding, ensuring stable operation of the balls, and preventing the balls from falling off or shifting at the sliding edge; the ball bearing limiting block design achieves precise ball bearing positioning, allowing the ball bearing limiting block to be firmly fixed on the slider body, thereby ensuring the overall strength and stability of the slider. Attached Figure Description
[0018] Figure 1 It is a structural diagram of the utility model;
[0019] Figure 2 This is a cross-sectional view of the present invention;
[0020] Figure 3 It is an exploded view of the utility model;
[0021] Figure 4 This is a schematic diagram of the slider body of this utility model;
[0022] Figure 5 for Figure 4 Enlarged view of point A in the middle;
[0023] Figure 6 for Figure 4 Enlarged view of point B in the middle;
[0024] Figure 7 This is a schematic diagram of the structure of the ball bearing mounting strip of this utility model;
[0025] Figure 8 This is a schematic diagram of the structure of the second end cap of this utility model;
[0026] Figure 9 This is a schematic diagram of the structure of the first end cap of this utility model.
[0027] Reference numerals: 1. Slider body; 101. Mounting groove; 102. Slide opening; 2. End cap; 201. First end cap; 202. Second end cap; 203. Positioning post; 204. Interlocking device; 241. Connecting limit strip; 2411. First fixing post; 2412. First fixing hole; 242. Connecting base; 2421. Second fixing post; 2422. Second fixing hole; 2423. Arc-shaped support; 205. Ball return device; 251. Ball return channel; 252. Ball return opening; 253. Arc-shaped protrusion; 206. Sealing block; 3. Silicone 301. First silicone cover; 302. Second silicone cover; 4. Double-layer ball bearing device; 401. First ball bearing layer; 402. Second ball bearing layer; 403. Ball bearing channel; 404. Ball bearing; 405. Ball bearing mounting strip; 451. First connecting strip; 452. Second connecting strip; 453. Ball bearing bracket; 454. Ball bearing mounting groove; 5. Ball bearing limiting block; 501. Connecting protrusion strip; 502. Snap-fit groove; 503. Positioning insertion hole; 504. Limiting block; 6. First screw fixing device; 7. Second screw fixing device; 8. Bolt fixing device. DETAILED DESCRIPTION
[0028] The following is in conjunction with the appendix Figure 1-9 The present invention will be further described below.
[0029] like Figure 1-3 As shown: This embodiment discloses a splicing linear slider, including a slider body 1. End caps 2 are provided at both the front and rear ends of the slider body 1. The end caps 2 are divided into a first end cap 201 and a second end cap 202. The first end cap 201 is located at the front end of the slider body 1, and the second end cap 202 is located at the rear end of the slider body 1. Silicone covers 3 are provided on the outer sides of the two end caps 2. The silicone covers 3 are divided into a first silicone cover 301 and a second silicone cover 302. The first silicone cover 301 is located outside the first end cap 201, and the second silicone cover 302 is located outside the second end cap 202. A sliding opening 102 is provided on the slider body 1. A double-layer ball bearing device 4 is provided inside the slider body 1. The ball bearing device 4 is located at both ends of the slide 102. The double-layer ball bearing device 4 is divided into a first ball bearing layer 401 and a second ball bearing layer 402. The double-layer ball bearing device 4 includes a ball bearing channel 403. The port of the ball bearing channel 403 is provided with an installation groove 101. A ball bearing mounting strip 405 is provided on the ball bearing channel 403. A ball bearing 404 is provided in the ball bearing mounting strip 405. The first ball bearing layer 401 is located above the second ball bearing layer 402. A ball bearing limiting block 5 is provided between the first ball bearing layer 401 and the second ball bearing layer 402 at the slide 102. A first screw fixing device 6, a second screw fixing device 7 and a bolt fixing device 8 are provided between the slider body 1, the end cap 2 and the silicone cap 3.
[0030] like Figure 7 As shown: The ball bearing mounting strip 405 includes a first connecting strip 451 and a second connecting strip 452. A ball bearing bracket 453 is provided between the first connecting strip 451 and the second connecting strip 452. A ball bearing mounting groove 454 is provided between the two ball bearing brackets 453. The first connecting strip 451 is located above the ball bearing bracket 453, and the second connecting strip 452 is located below the ball bearing bracket 453. A partition is provided in the middle of the ball bearing mounting strip 405, so that the ball bearing mounting strip 405 can be pulled out and replaced during disassembly and maintenance.
[0031] like Figure 3 and Figure 8-9 As shown: The end cap 2 includes a positioning post 203, a splicing device 204, and a ball return device 205. A sealing block 206 is embedded in the inner side of the end cap 2. The splicing device 204 includes a connecting limiting strip 241 and a connecting base 242. The connecting base 242 has arc-shaped supports 2423 on its left and right sides. The connecting limiting strip 241 is used to limit the first ball layer 401, and the connecting base 242 is used to limit the second ball layer 402. The connecting limiting strip 241 on the first end cap 201 has a first fixing hole 2412 at its port, and the connecting limiting strip 241 on the second end cap 202 has a first fixing post 2411 at its port. The first fixing post 2411 is fixed and limited by the first fixing hole 2412. The connecting base 242 on the first end cap 201 has a second fixing hole 2422 at its port, and the connecting base 242 on the second end cap 202 has a second fixing post 2421 at its port.
[0032] like Figure 2 and Figure 8-9 As shown: The ball return device 205 includes a ball return channel 251, which corresponds to the ball channel 403. The inner side of the end cover 2 is provided with a ball return port 252, and the ball return port 252 is provided with an arc-shaped protrusion 253, which corresponds to the mounting groove 101.
[0033] like Figure 5-6 As shown: The ball bearing limiting block 5 includes a limiting block 504. A connecting protrusion 501 is fixedly connected to the side of the limiting block 504. The slider body 1 is provided with a snap-fit groove 502 corresponding to the connecting protrusion 501. Positioning insertion holes 503 are provided at both ends of the limiting block 504. The positioning insertion holes 503 correspond to the positioning posts 203.
[0034] like Figure 1 and Figure 3As shown: the first screw fixing device 6 passes through the end cover 2 and is threadedly connected to the slider body 1; the second screw fixing device 7 passes through the end cover from one side of the silicone cover 3 and is threadedly connected to the slider body 1; the bolt fixing device 8 passes through the silicone cover 3 and is threadedly connected to the end cover 2.
[0035] When using this utility model: When it is necessary to disassemble, repair, or replace parts of the linear slider, unscrew the second screw fixing device 7 and bolt fixing device 8 at one end of the slider, remove the silicone cover 3, then unscrew the first screw fixing device 6, and remove the end cover 2. At this time, the ball 404 can be lubricated. If the ball 404 needs to be replaced, pull out the ball limiting block 5, then take out the ball 404 to be replaced from the ball mounting strip 405 and replace it with a new ball 404. After the internal maintenance and replacement of the slider is completed, insert the ball limiting block 5, align the connecting protrusion 501 with the snap-fit groove 502 and snap it in place, and align the positioning insertion hole 503 at the rear end with the second end cover 202. Align and insert the positioning post 203, then connect the first end cover 201 to the slider body 1. At this time, align and insert the first fixing post 2411 on the connecting limit strip 241 on the second end cover 202 with the first fixing hole 2412 on the connecting limit strip 241 on the first end cover 201, and align and insert the second fixing post 2421 on the connecting base 242 on the second end cover 202 with the second fixing hole 2422 on the connecting base 242 on the first end cover 201. Align and insert the positioning post 203 on the first end cover 201 with the positioning insertion hole 503, and then screw on the first screw fixing device, bolt fixing device 8 and second screw fixing device 7 in sequence to complete the installation.
[0036] Obviously, the above embodiments of this utility model are merely illustrative examples and not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, these obvious variations or modifications derived from the essential spirit of this utility model still fall within the protection scope of this utility model.
Claims
1. A splicing linear slider, comprising a slider body (1), characterized in that: The slider body (1) is provided with end caps (2) at both ends. The end caps (2) are divided into a first end cap (201) and a second end cap (202). The first end cap (201) is located at the front end of the slider body (1), and the second end cap (202) is located at the rear end of the slider body (1). The outer surfaces of the two end caps (2) are provided with silicone caps (3). The silicone caps (3) are divided into a first silicone cap (301) and a second silicone cap (302). The first silicone cap (301) is located outside the first end cap (201), and the second silicone cap (302) is located outside the second end cap (202). The slider body (1) is provided with a sliding opening ( 102), the slider body (1) is provided with a double-layer ball bearing device (4) inside. The double-layer ball bearing device (4) is located at both ends of the slide opening (102). The double-layer ball bearing device (4) is divided into a first ball bearing layer (401) and a second ball bearing layer (402). The first ball bearing layer (401) is located above the second ball bearing layer (402). A ball bearing limiting block (5) is provided between the first ball bearing layer (401) and the second ball bearing layer (402) at the slide opening (102). A first screw fixing device (6), a second screw fixing device (7) and a bolt fixing device (8) are provided between the slider body (1), the end cap (2) and the silicone cap (3).
2. The splicing linear slider according to claim 1, characterized in that: The double-layer ball bearing device (4) includes a ball bearing channel (403), a mounting groove (101) is provided at the port of the ball bearing channel (403), a ball bearing mounting strip (405) is provided on the ball bearing channel (403), and a ball bearing (404) is provided inside the ball bearing mounting strip (405).
3. A splicing linear slider according to claim 2, characterized in that: The ball bearing mounting strip (405) includes a first connecting strip (451) and a second connecting strip (452). A ball bearing bracket (453) is provided between the first connecting strip (451) and the second connecting strip (452). A ball bearing mounting groove (454) is provided between the two ball bearing brackets (453). The first connecting strip (451) is located above the ball bearing bracket (453), and the second connecting strip (452) is located below the ball bearing bracket (453).
4. A splicing linear slider according to claim 1, characterized in that: The end cap (2) includes a positioning post (203), a splicing device (204), and a ball return device (205), and a sealing block (206) is embedded in the inner side of the end cap (2).
5. A splicing linear slider according to claim 4, characterized in that: The splicing device (204) includes a connecting limiting strip (241) and a connecting base (242). The connecting base (242) has arc-shaped supports (2423) on its left and right sides. The connecting limiting strip (241) is used to limit the first ball bearing layer (401), and the connecting base (242) is used to limit the second ball bearing layer (402).
6. A splicing linear slider according to claim 5, characterized in that: The first end cap (201) has a first fixing hole (2412) at the port of the connecting limit strip (241), and the second end cap (202) has a first fixing post (2411) at the port of the connecting limit strip (241). The first fixing post (2411) is fixed in place by the first fixing hole (2412).
7. A splicing linear slider according to claim 5, characterized in that: The first end cap (201) has a second fixing hole (2422) at the port of the connecting base (242), and the second end cap (202) has a second fixing post (2421) at the port of the connecting base (242).
8. A splicing linear slider according to claim 4, characterized in that: The ball return device (205) includes a ball return channel (251), which corresponds to the ball channel (403). The inner side of the end cap (2) is provided with a ball return port (252), and an arc-shaped protrusion (253) is provided at the ball return port (252). The arc-shaped protrusion (253) corresponds to the mounting groove (101).
9. A splicing linear slider according to claim 1, characterized in that: The ball bearing limiting block (5) includes a limiting block (504), a connecting protrusion (501) is fixedly connected to the side of the limiting block (504), the slider body (1) is provided with a snap-fit groove (502) corresponding to the connecting protrusion (501), and positioning holes (503) are provided at the front and rear ends of the limiting block (504), the positioning holes (503) correspond to the positioning posts (203).
10. A splicing linear slider according to claim 1, characterized in that: The first screw fixing device (6) passes through the end cover (2) and is threadedly connected to the slider body (1). The second screw fixing device (7) passes through the end cover from the silicone cover (3) side and is threadedly connected to the slider body (1). The bolt fixing device (8) passes through the silicone cover (3) and is threadedly connected to the end cover (2).