An oil passage assembly on a linear slider

Abstract

The application relates to a linear slider oil passage assembly, which comprises a slider body, end covers connected to the two end faces of the slider body and provided with oil inlet holes, a retainer arranged in the slider body and matched with the slider body and the end covers to form a pair of circulating raceways, and an oil passage matched with the oil inlet holes and the pair of circulating raceways, wherein the two ends of the retainer are provided with inner circulating raceway parts, a detachable inner circulating end cover assembly is arranged on the inner side of the end cover, the end cover is connected with the slider body, the inner circulating end cover assembly is sleeved on the inner circulating raceway parts, and the oil entering the oil inlet holes flows into the inner circulating end cover assembly through the oil passage and flows into the pair of circulating raceways respectively. The linear slider oil passage assembly can ensure that the lubricating oil is uniformly distributed into each circulating raceway of the slider, the return flow channels are communicated with the pair of circulating raceways respectively, the uniform distribution of the lubricating oil is ensured, the lubricating oil can efficiently enter the return flow channels, and the lubricating effect is improved.

Description

Technical Field

[0001] This invention relates to the field of slider technology, and more particularly to an oil circuit assembly on a linear slider. Background Technology

[0002] Linear sliders are widely used in various precision mechanical equipment, such as CNC machine tools and automated production lines. In these applications, the slider rolls on the guide rail through its internal rolling elements (such as balls or rollers) to achieve low-friction, high-precision linear motion. To ensure the long-term stable operation of the slider, an oil circuit system is usually installed inside the slider to ensure good lubrication.

[0003] Existing slider lubrication systems have some shortcomings. For example, Chinese Patent Publication No. (CN117329229A) discloses an oil circuit structure for a slider. This structure includes an end cap with an oil inlet, a retainer mounted on the inner end face of the end cap and spliced ​​with the end cap to form at least two pairs of reverse channels, and an oil passage connecting the oil inlet and the reverse channels. This oil circuit structure solves the problem of not being able to create an oil passage on the inner end face of the end cap or having difficulty creating an oil passage in traditional designs by opening an outer oil groove on the outer end face of the end cap, with the outer oil groove spanning the upper reverse channel, and forming an outer oil passage through a sealing part on the outer side of the outer oil groove.

[0004] However, this design still has the following limitations: 1. Although the external oil groove design solves the problem of difficult oil passage opening, the overall oil circuit design is more complex, increasing manufacturing difficulty and cost; 2. Some oil grooves are located on the cage. While this design can achieve lubricant delivery, it reduces the cross-sectional area of ​​the cage, leading to a decrease in the cage's structural strength. Under high load or impact load conditions, the cage may deform or be damaged, seriously affecting the normal operation of the slider. Summary of the Invention

[0005] The present invention aims to solve the problems existing in the prior art by providing an oil circuit assembly on a linear slider. By optimizing the oil circuit design, the lubrication effect of the slider is improved while maintaining the strength and reliability of the structure.

[0006] The technical solution adopted by this invention to solve its technical problem is as follows: This linear slider oil circuit assembly includes: a slider body, end caps connected to both ends of the slider body and having oil inlet holes, a retainer disposed within the slider body and cooperating with the slider body and end caps to form a pair of circulating raceways, and an oil passage cooperating to form a connection between the oil inlet holes and the pair of circulating raceways.

[0007] Both ends of the cage are provided with internal circulation raceways. A detachable internal circulation end cap assembly is installed on the inner side of the end cap. The end cap is connected to the slider body, so that the internal circulation end cap assembly is sleeved on the internal circulation raceway. The oil entering through the oil inlet flows into the internal circulation end cap assembly through the oil passage and flows into a pair of circulation raceways respectively.

[0008] Preferably, the inner circulation end cap assembly includes a first inner circulation raceway housing and a second inner circulation raceway housing sleeved on the first inner circulation raceway housing. The first inner circulation raceway housing and the second inner circulation raceway housing are staggered. The first inner circulation raceway housing is sleeved on the inner circulation raceway portion, and the second inner circulation raceway housing is inserted into the inner side of the end cap.

[0009] Preferably, a first reflux channel is formed between the inner wall of the first inner circulation raceway housing and the outer wall of the inner circulation raceway section, and a second reflux channel is formed between the inner wall of the second inner circulation raceway housing and the outer wall of the first inner circulation raceway housing. The first reflux channel extends in the horizontal direction, and the second reflux channel extends in the vertical direction. A pair of circulation raceways are respectively connected to the first reflux channel and the second reflux channel.

[0010] Preferably, the second internal circulation raceway housing is provided with a first oil inlet hole and a second oil inlet hole that communicate with the oil passage. The first oil inlet hole and the second oil inlet hole are arranged vertically along the height of the housing. The first oil inlet hole communicates with the first return channel, and the second oil inlet hole communicates with the second return channel.

[0011] Preferably, a positioning groove is provided on the inner side of the end cap, the second inner circulation raceway housing is inserted into the positioning groove, and the first oil inlet and the second oil inlet are connected to the oil passage.

[0012] Preferably, a first oil groove is provided on the inner side of the end cap, one end of the first oil groove is connected to the oil inlet hole, and the other end of the first oil groove extends into the positioning groove. A sealing sheet is snapped onto the inner side of the end cap, and the sealing sheet is attached to the first oil groove to form a first oil passage.

[0013] Preferably, a second oil groove communicating with the first oil groove is provided on the inner side of the end cap. The second oil groove is located to the side of the positioning groove. A guide groove matching the second oil groove and communicating with the first oil inlet and the second oil inlet are provided on the outer side of the second inner circulation raceway housing. The second inner circulation raceway housing is inserted into the positioning groove. The guide groove and the second oil groove form a second oil passage. The first oil passage and the second oil passage together form the oil channel.

[0014] Preferably, the slider body has a pair of inner raceway holes along its length direction. Each inner raceway hole is provided with an auxiliary component for guiding the circulation raceway and the rollers mounted on the circulation raceway to move within it. One auxiliary component is inserted into the first inner circulation raceway housing and the retainer and communicates with the first return channel. The other auxiliary component is inserted into the first inner circulation raceway housing and the second inner circulation raceway housing and communicates with the second return channel.

[0015] Preferably, the first internal circulation raceway housing is provided with a first guide groove connecting the first oil inlet and the first return channel, and the second internal circulation raceway housing is provided with a second guide groove connecting the second oil inlet and the second return channel.

[0016] Preferably, a limiting groove is provided on the inner side of the end cap, and an oil circuit distributor is installed in the limiting groove. The oil circuit distributor is rotatably disposed in the limiting groove, and the oil inlet and the oil circuit are connected and disconnected through the oil circuit distributor.

[0017] The present invention has the following beneficial effects:

[0018] 1. By optimizing the oil circuit design, the linear slider oil circuit assembly of the present invention can ensure that the lubricating oil is evenly distributed in each circulation raceway of the slider. The first inner circulation raceway housing and the second inner circulation raceway housing in the inner circulation end cap assembly are staggered to form a first return channel and a second return channel. These return channels are respectively connected to a pair of circulation raceways to ensure the even distribution of lubricating oil. In addition, the design of the first oil inlet and the second oil inlet allows the lubricating oil to enter the return channel efficiently, improving the lubrication effect.

[0019] 2. This invention avoids creating oil grooves on the cage, thus maintaining the cross-sectional area of ​​the cage and improving its structural strength. Under high loads or impact loads, the cage is less prone to deformation or damage, ensuring the normal operation of the slider. This not only extends the service life of the slider but also improves the reliability and stability of the equipment.

[0020] 3. The internal circulation end cap assembly features a detachable design, facilitating assembly and maintenance. When inspection or replacement of parts is required, the internal circulation end cap assembly can be quickly disassembled, reducing maintenance costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the slider's structure;

[0022] Figure 2 This is an exploded view of the slider's structure.

[0023] Figure 3 This is a schematic diagram of the internal circulation end cap assembly;

[0024] Figure 4This is a structural schematic diagram of the internal circulation end cap assembly and the cage.

[0025] Figure 5 This is a schematic diagram of the cage structure;

[0026] Figure 6 This is a schematic diagram of the end cap structure;

[0027] Figure 7 Rear view of the second inner circulation raceway housing;

[0028] Figure 8 Left view of the end cap, cage, and accessories;

[0029] Figure 9 Right view of the end cap, cage, and accessories;

[0030] Figure 10 This is a schematic diagram of the slider body.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Slider body; 100. Circulating raceway; 101. Cage; 102. Inner circulating raceway section; 103. Inner raceway hole; 104. Auxiliary parts;

[0033] 2. End cap; 200. Oil inlet; 201. Positioning groove; 202. First oil groove; 203. Sealing plate; 204. Second oil groove; 205. Limiting groove; 206. Oil circuit distributor;

[0034] 3. Inner circulation end cap assembly; 300. First inner circulation raceway housing; 301. Second inner circulation raceway housing; 302. First return channel; 303. Second return channel; 304. First oil inlet hole; 305. Second oil inlet hole; 306. Guide groove; 307. First guide groove; 308. Second guide groove. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings:

[0036] See attached document Figures 1 to 10As shown: An oil circuit assembly on a linear slider includes: a slider body 1, an end cap 2 connected to both ends of the slider body 1 and having an oil inlet hole 200, a retainer 101 disposed inside the slider body 1 and cooperating with the slider body 1 and the end cap 2 to form a pair of circulating raceways 100, and an oil passage cooperating to form a connection between the oil inlet hole 200 and the pair of circulating raceways 100. Both ends of the retainer 101 are provided with inner circulating raceways 100. A detachable inner circulating end cap assembly is installed on the inner side of the end cap. The end cap 2 is connected to the slider body 1, so that the inner circulating end cap assembly is fitted onto the inner circulating raceway 100. Oil entering through the oil inlet hole 200 flows into the inner circulating end cap assembly through the oil passage and into the pair of circulating raceways 100 respectively.

[0037] The slider body 1 serves as the basic structure of the entire oil circuit assembly. It has an internal raceway hole 103 for guiding the movement of rolling elements (such as balls or rollers). The end cap 2 is connected to both ends of the slider body 1. The end cap 2 has an oil inlet hole 200. The end cap 2 is connected to the slider body 1 by bolts or other fasteners to ensure sealing and structural stability. The cage 101 is set inside the slider body 1 and cooperates with the slider body 1 and the end cap 2 to form a pair of circulating raceways 100. Both ends of the cage 101 are provided with internal circulating raceways 100. These internal circulating raceways 100 are used to guide the circulating movement of the rolling elements inside the slider. The oil passage connects the oil inlet hole 200 and the pair of circulating raceways 100 to ensure that the lubricating oil can be evenly distributed to all parts of the slider. In this embodiment, an inner circulation end cap assembly is provided. The end cap 2 is connected to the slider body 1, so that the inner circulation end cap assembly is firmly fitted onto the inner circulation raceway 100. The oil entering through the oil inlet 200 flows into the inner circulation end cap assembly through the oil passage and flows into a pair of circulation raceways 100 respectively. This design ensures that the lubricating oil can be evenly distributed in each circulation raceway 100 of the slider, thereby improving the lubrication effect.

[0038] Specifically, such as Figures 2 to 4 As shown, the inner circulation end cap assembly includes a first inner circulation raceway 100 housing and a second inner circulation raceway 100 housing sleeved on the first inner circulation raceway 100 housing. The first inner circulation raceway 100 housing and the second inner circulation raceway 100 housing are staggered. The first inner circulation raceway 100 housing is sleeved on the inner circulation raceway 100 part, and the second inner circulation raceway 100 housing is inserted into the inner side of the end cap 2.

[0039] The first inner circulation raceway 100 housing is sleeved on the inner circulation raceway 100 portion of the cage 101 to form a part of the inner circulation raceway 100. The second inner circulation raceway 100 housing is sleeved on the first inner circulation raceway 100 housing, and the two are staggered. The second inner circulation raceway 100 housing is inserted into the inner positioning groove 201 of the end cover 2. The insertion of the second inner circulation raceway 100 housing into the inner positioning groove 201 of the end cover 2 ensures its precise fit with the first inner circulation raceway 100 housing and the cage 101, forming a stable inner circulation raceway 100 structure.

[0040] Furthermore, such as Figure 3 , Figure 4 , Figure 6 and Figure 8 As shown, a first return channel 302 is formed between the inner wall of the first inner circulation raceway 100 housing and the outer wall of the inner circulation raceway 100 portion, and a second return channel 303 is formed between the inner wall of the second inner circulation raceway 100 housing and the outer wall of the first inner circulation raceway 100 housing. The first return channel 302 extends in the horizontal direction, and the second return channel 303 extends in the vertical direction. A pair of circulation raceways 100 are respectively connected to the first return channel 302 and the second return channel 303.

[0041] A first return channel 302 is formed between the inner wall of the first inner circulation raceway 100 housing and the outer wall of the inner circulation raceway 100 portion. This channel extends horizontally. A second return channel 303 is formed between the inner wall of the second inner circulation raceway 100 housing and the outer wall of the first inner circulation raceway 100 housing. This channel extends vertically. A pair of circulation raceways 100 are respectively connected to the first return channel 302 and the second return channel 303 to ensure uniform distribution of lubricating oil. The design of the first return channel 302 and the second return channel 303 ensures that the lubricating oil can enter from the oil inlet 200 and then be evenly distributed to each circulation raceway 100 of the slider through the oil passage, reducing friction and improving lubrication effect.

[0042] Furthermore, such as Figure 3 , Figure 4 and Figure 7 As shown, the housing of the second internal circulation raceway 100 is provided with a first oil inlet hole 304 and a second oil inlet hole 305 that communicate with the oil passage. The first oil inlet hole 304 and the second oil inlet hole 305 are arranged vertically along the height of the housing. The first oil inlet hole 304 is connected to the first return channel 302, and the second oil inlet hole 305 is connected to the second return channel 303.

[0043] The housing of the second internal circulation raceway 100 is provided with a first oil inlet hole 304 and a second oil inlet hole 305. These two holes are arranged vertically along the height of the housing. The first oil inlet hole 304 is connected to the first return channel 302, and the second oil inlet hole 305 is connected to the second return channel 303. This design ensures that the lubricating oil can enter from the oil inlet hole 200 and flow into the first return channel 302 and the second return channel 303 respectively, so as to achieve uniform distribution.

[0044] Specifically, such as Figures 6 to 9 As shown, a positioning groove 201 is provided on the inner side of the end cap 2, and the housing of the second inner circulation raceway 100 is inserted into the positioning groove 201. The first oil inlet hole 304 and the second oil inlet hole 305 are connected to the oil passage.

[0045] The inner side of the end cap 2 is provided with a positioning groove 201. The housing of the second internal circulation raceway 100 is inserted into the positioning groove 201 to ensure its precise fit with the end cap 2. The first oil inlet hole 304 and the second oil inlet hole 305 are provided on the housing of the second internal circulation raceway 100. These two holes are arranged vertically along the height of the housing and are respectively connected to the first return channel 302 and the second return channel 303. The first oil inlet hole 304 and the second oil inlet hole 305 are connected to the oil passage to ensure the smooth flow of lubricating oil. The housing of the second internal circulation raceway 100 is inserted into the positioning groove 201 of the end cap 2 to ensure its precise connection with the first oil inlet hole 304 and the second oil inlet hole 305, forming a stable oil circuit system. This design ensures that the lubricating oil can enter from the oil inlet hole 200 and flow smoothly into the first return channel 302 and the second return channel 303 to achieve uniform distribution.

[0046] Furthermore, such as Figure 6 and Figure 8 As shown, a first oil groove 202 is provided on the inner side of the end cap 2. One end of the first oil groove 202 is connected to the oil inlet 200, and the other end of the first oil groove 202 extends into the positioning groove 201. A sealing sheet 203 is snapped onto the inner side of the end cap 2. The sealing sheet 203 is attached to the first oil groove 202 and forms a first oil passage.

[0047] The inner side of the end cap 2 is provided with a first oil groove 202. One end of the first oil groove 202 is connected to the oil inlet hole 200, and the other end extends into the positioning groove 201. A sealing plate 203 is snapped onto the inner side of the end cap 2. The sealing plate 203 is attached to the first oil groove 202 to form a first oil passage. The design of the sealing plate 203 ensures the sealing of the first oil passage, effectively reduces oil leakage, and improves the reliability of the system. This design ensures that the lubricating oil can enter from the oil inlet hole 200 and flow smoothly to the positioning groove 201 through the first oil groove 202, ensuring smooth flow of oil.

[0048] Furthermore, such as Figures 6 to 8As shown, a second oil groove 204 communicating with the first oil groove 202 is provided on the inner side of the end cap 2. The second oil groove 204 is located on the side of the positioning groove 201. A guide groove 306 matching the second oil groove 204 and communicating with the first oil inlet 304 and the second oil inlet 305 is provided on the outer side of the housing of the second inner circulation raceway 100. The housing of the second inner circulation raceway 100 is inserted into the positioning groove 201. The guide groove 306 and the second oil groove 204 form a second oil passage. The first oil passage and the second oil passage together form an oil channel.

[0049] The inner side of the end cap 2 is provided with a second oil groove 204 that communicates with the first oil groove 202. The second oil groove 204 is located to the side of the positioning groove 201. The outer side of the housing of the second internal circulation raceway 100 is provided with a guide groove 306 that matches the second oil groove 204. These guide grooves 306 are respectively connected to the first oil inlet hole 304 and the second oil inlet hole 305. The housing of the second internal circulation raceway 100 is inserted into the positioning groove 201. The guide groove 306 and the second oil groove 204 form a second oil passage. The first oil passage and the second oil passage together constitute a complete oil passage system. The matching design of the second oil groove 204 and the guide groove 306 ensures the smooth connection between the first oil inlet hole 304 and the second oil inlet hole 305 and the oil passage, forming a complete oil passage system. This ensures that the lubricating oil can enter from the oil inlet hole 200 and then flow smoothly through the first oil groove 202 and the second oil groove 204 to the first return channel 302 and the second return channel 303, achieving uniform distribution and improving the reliability and lubrication effect of the system.

[0050] Specifically, such as Figure 2 and Figure 10 As shown, a pair of inner raceway holes 103 are provided in the slider body 1 along its length direction. Each inner raceway hole 103 is provided with an auxiliary member 104 for guiding the circulation raceway 100 and the rollers mounted on the circulation raceway 100 to move within it. One auxiliary member 104 is inserted into the housing of the first inner circulation raceway 100 and the retainer 101 and communicates with the first return channel 302. The other auxiliary member 104 is inserted into the housing of the first inner circulation raceway 100 and the housing of the second inner circulation raceway 100 and communicates with the second return channel 303.

[0051] The slider body 1 has a pair of inner raceway holes 103 along its length. Each inner raceway hole 103 is provided with an auxiliary component 104 for guiding the circulation raceway 100 and the rollers mounted on the circulation raceway 100 to move within it. One auxiliary component 104 is inserted into the housing of the first inner circulation raceway 100 and the cage 101 and communicates with the first return channel 302. The other auxiliary component 104 is inserted into the housing of the first inner circulation raceway 100 and the housing of the second inner circulation raceway 100 and communicates with the second return channel 303. The design of the auxiliary component 104 ensures the smooth movement of the rollers in the inner raceway holes 103. At the same time, the communication with the return channel ensures the uniform distribution of lubricating oil. This not only improves the motion accuracy and efficiency of the rollers, but also ensures that the lubricating oil can effectively reach all parts that need lubrication, reduce friction, and extend the service life of the slider.

[0052] Furthermore, such as Figure 4 As shown, the first internal circulation raceway 100 housing is provided with a first guide groove 307 connecting the first oil inlet 304 and the first return channel 302, and the second internal circulation raceway 100 housing is provided with a second guide groove 308 connecting the second oil inlet 305 and the second return channel 303.

[0053] The first internal circulation raceway 100 housing is provided with a first guide groove 307 connecting the first oil inlet 304 and the first return channel 302. The second internal circulation raceway 100 housing is provided with a second guide groove 308 connecting the second oil inlet 305 and the second return channel 303. The design of the first guide groove 307 and the second guide groove 308 ensures that the lubricating oil, after entering from the oil inlet 200, can flow smoothly into the first return channel 302 and the second return channel 303, thereby improving the lubrication effect, ensuring that the lubricating oil can be evenly distributed in each circulation raceway 100 of the slider, reducing friction, and extending the service life of the slider.

[0054] Specifically, such as Figure 6 As shown, a limiting groove 205 is provided on the inner side of the end cover 2. An oil circuit distributor 206 is installed in the limiting groove 205. The oil circuit distributor 206 is rotatably set in the limiting groove 205. The oil inlet hole 200 and the oil circuit are connected and disconnected through the oil circuit distributor 206.

[0055] An oil distributor 206 is installed in the inner side of the end cover 2, which is provided with a limiting groove 205. The oil distributor 206 is rotatably mounted in the limiting groove 205. By controlling the opening and closing of the oil inlet 200 and the oil passage, the oil flow rate can be precisely adjusted. The design of the oil distributor 206 allows for flexible control of the opening and closing of the oil inlet 200 and the oil passage, thereby achieving precise adjustment of the oil flow rate, improving the adaptability and operating efficiency of the system, ensuring that the lubricating oil can be accurately distributed as needed under different working conditions, and further improving the performance and reliability of the slider.

[0056] It is worth mentioning that, such as Figure 2 As shown, the end cap 2 is mirror-image arranged with two internal circulation end cap assemblies along the oil inlet hole 200. The retainer 101 in the slider body 1 is also arranged in the same way with a pair. In this embodiment, only one side of the slider body 1 and the end cap 2 is described, but it is not limited to a single-sided oil circuit assembly.

[0057] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An oil circuit assembly on a linear slider, characterized in that, include: The slider body comprises: an end cap connected to both ends of the slider body and having oil inlet holes; a retainer disposed within the slider body and cooperating with the slider body and end caps to form a pair of circulating raceways; and an oil passage cooperating to form a connection between the oil inlet holes and the pair of circulating raceways. Both ends of the cage are provided with internal circulation raceway portions. A detachable internal circulation end cap assembly is installed on the inner side of the end cap. The end cap is connected to the slider body, so that the internal circulation end cap assembly is sleeved on the internal circulation raceway portion. The oil entering through the oil inlet flows into the internal circulation end cap assembly through the oil passage and flows into a pair of circulation raceways respectively. The internal circulation end cap assembly includes a first internal circulation raceway housing and a second internal circulation raceway housing sleeved on the first internal circulation raceway housing. The first and second internal circulation raceway housings are staggered. The first internal circulation raceway housing is sleeved on the internal circulation raceway portion, and the second internal circulation raceway housing is inserted into the inner side of the end cap. A first return channel is formed between the inner wall of the first internal circulation raceway housing and the outer wall of the internal circulation raceway portion, and a second return channel is formed between the inner wall of the second internal circulation raceway housing and the outer wall of the first internal circulation raceway housing. The first return channel extends horizontally, and the second return channel extends vertically. A pair of circulation raceways are respectively connected to the first and second return channels. The second internal circulation raceway housing is provided with a first oil inlet and a second oil inlet communicating with the oil passage. The first and second oil inlets are vertically arranged along the height of the housing. The first oil inlet communicates with the first return channel, and the second oil inlet communicates with the second return channel.

2. The oil circuit assembly on a linear slider according to claim 1, characterized in that: A positioning groove is provided on the inner side of the end cap, and the second inner circulation raceway housing is inserted into the positioning groove. The first oil inlet and the second oil inlet are connected to the oil passage.

3. The oil circuit assembly on a linear slider according to claim 1, characterized in that: A first oil groove is provided on the inner side of the end cap. One end of the first oil groove is connected to the oil inlet hole, and the other end of the first oil groove extends into the positioning groove. A sealing sheet is snapped onto the inner side of the end cap. The sealing sheet is attached to the first oil groove and forms a first oil passage.

4. The oil circuit assembly on a linear slider according to claim 3, characterized in that: The inner side of the end cap is provided with a second oil groove that communicates with the first oil groove. The second oil groove is located to the side of the positioning groove. The outer side of the second inner circulation raceway housing is provided with a guide groove that matches the second oil groove and communicates with the first oil inlet and the second oil inlet respectively. The second inner circulation raceway housing is inserted into the positioning groove. The guide groove and the second oil groove form a second oil passage. The first oil passage and the second oil passage together form the oil channel.

5. The oil circuit assembly on a linear slider according to claim 1, characterized in that: The slider body has a pair of inner raceway holes along its length. Each inner raceway hole is provided with an auxiliary component for guiding the circulation raceway and the rollers mounted on the circulation raceway to move within it. One auxiliary component is inserted into the first inner circulation raceway housing and the cage and communicates with the first return channel. The other auxiliary component is inserted into the first inner circulation raceway housing and the second inner circulation raceway housing and communicates with the second return channel.

6. The oil circuit assembly on a linear slider according to claim 5, characterized in that: The first internal circulation raceway housing is provided with a first guide groove connecting the first oil inlet and the first return channel, and the second internal circulation raceway housing is provided with a second guide groove connecting the second oil inlet and the second return channel.

7. The oil circuit assembly on a linear slider according to claim 1, characterized in that: A limiting groove is provided on the inner side of the end cap, and an oil circuit distributor is installed in the limiting groove. The oil circuit distributor is rotatably set in the limiting groove, and the oil inlet and the oil circuit are connected and disconnected through the oil circuit distributor.

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