Oil way assembly on linear sliding block

Abstract

The invention relates to an oil way assembly on a linear sliding block, which comprises a sliding block body, end covers which are connected to two end surfaces of the sliding block body and are provided with oil inlet holes, a retainer which is arranged in the sliding block body and is matched with the sliding block body and the end covers to form a pair of circulating roller paths, and an oil way which is matched to form a communication oil inlet hole and the pair of circulating roller paths, inner circulation raceway parts are arranged at the two ends of the retainer, a detachable inner circulation end cover assembly is installed on the inner side of the cover plate, the end cover is connected with the sliding block body so that the inner circulation raceway parts can be sleeved with the inner circulation end cover assembly, and oil entering from the oil inlet flows into the inner circulation end cover assembly through the oil channels and flows into the pair of circulation raceways respectively. According to the linear sliding block oil way assembly, it can be ensured that lubricating oil is evenly distributed in all the circulating roller paths of the sliding block, the backflow channels communicate with the pair of circulating roller paths correspondingly, it is ensured that the lubricating oil is evenly distributed, the lubricating oil can efficiently enter the backflow channels, and the lubricating effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sliders, and in particular to an oil circuit assembly on a linear slider. Background Art

[0002] Linear sliders are widely used in various precision mechanical equipment, such as CNC machine tools, automated production lines, etc. 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. In order to ensure the long-term stable operation of the slider, an oil circuit system is usually set inside the slider to ensure good lubrication effect.

[0003] The existing slider lubrication system has some shortcomings. For example, Chinese patent publication number: (CN117329229A) discloses an oil circuit structure of a slider, which includes an end cover with an oil inlet hole, a retainer installed on the inner end surface of the end cover and spliced ​​with the end cover to form at least two pairs of reverse channels, and an oil channel connecting the oil inlet hole and the reverse channel. The oil circuit structure is formed by opening an outer oil groove on the outer end surface of the end cover, the outer oil groove is arranged across the upper end reverse channel, and the outer oil channel is formed by the sealing part outside the outer oil groove, which solves the problem that the oil channel cannot be opened or is difficult to open the oil channel on the inner end surface of the end cover in the traditional design.

[0004] However, this design still has the following limitations: 1. Although the design of the external oil groove solves the problem of difficulty in opening the oil channel, the overall oil circuit design is relatively complex, which increases the difficulty and cost of manufacturing; 2. The oil grooves of some oil circuits are opened on the retainer. Although this design can realize the delivery of lubricating oil, it will reduce the cross-sectional area of ​​the retainer, resulting in a decrease in the structural strength of the retainer. Under high load or impact load conditions, the retainer may be deformed or 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 above-mentioned prior art and provides an oil circuit assembly on a linear slider, which improves the lubrication effect of the slider by optimizing the oil circuit design while maintaining the strength and reliability of the structure.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: the oil circuit assembly on the linear slider comprises: a slider body, end covers connected to both end surfaces of the slider body and having oil inlet holes, a retainer arranged in the slider body and cooperating with the slider body and the end covers to form a pair of circulating raceways, and an oil channel cooperating to form a connection between the oil inlet holes and the pair of circulating raceways, wherein: Inner circulation raceways are provided at both ends of the retaining frame, and a detachable inner circulation end cover assembly is installed on the inner side of the cover plate. The end cover is connected to the slider body so that the inner circulation end cover assembly is sleeved on the inner circulation raceway portion. The oil entering the oil inlet hole flows into the inner circulation end cover assembly through the oil channel and flows into a pair of circulation raceways respectively.

[0007] Preferably, the inner circulation end cover assembly includes a first inner circulation raceway shell and a second inner circulation raceway shell sleeved on the first inner circulation raceway shell, the first inner circulation raceway shell and the second inner circulation raceway shell are staggered, the first inner circulation raceway shell is sleeved on the inner circulation raceway portion, and the second inner circulation raceway shell is inserted on the inner side of the end cover.

[0008] Preferably, a first reflow channel is formed between the inner wall of the first inner circulation raceway shell and the outer wall of the inner circulation raceway portion, and a second reflow channel is formed between the inner wall of the second inner circulation raceway shell and the outer wall of the first inner circulation raceway shell, the first reflow channel extends in a horizontal direction, and the second reflow channel extends in a vertical direction, and a pair of circulation raceways are respectively connected to the first reflow channel and the second reflow channel.

[0009] Preferably, the second inner circulation raceway housing is provided with a first oil inlet hole and a second oil inlet hole connected to the oil channel, the first oil inlet hole and the second oil inlet hole are vertically arranged along the height of the housing, the first oil inlet hole is connected to the first return channel, and the second oil inlet hole is connected to the second return channel.

[0010] Preferably, a positioning groove is provided on the inner side of the end cover, the second inner circulation raceway housing is inserted into the positioning groove, and the first oil inlet hole and the second oil inlet hole are connected to the oil channel.

[0011] Preferably, a first oil groove is provided on the inner side of the end cover, one end of the first oil groove is connected to the oil inlet, and the other end of the first oil groove extends to the positioning groove. A sealing sheet is clamped on the inner side of the end cover, and the sealing sheet is attached to the first oil groove to form a first oil circuit.

[0012] Preferably, a second oil groove connected with the first oil groove is provided on the inner side of the end cover, and the second oil groove is located on the side of the positioning groove. A guide groove matching the second oil groove and respectively connected with the first oil inlet hole and the second oil inlet hole is provided on the outer side of the second inner circulation raceway shell. The second inner circulation raceway shell is inserted in the positioning groove, and the guide groove and the second oil groove form a second oil circuit, and the first oil circuit and the second oil circuit together form the oil circuit.

[0013] Preferably, a pair of inner raceway holes are opened in the slider body along its length direction, and each of the inner raceway holes is provided with an auxiliary component for guiding the circulation raceway and the rollers installed on the circulation raceway to move therein, wherein one auxiliary component is inserted into the first inner circulation raceway housing and the retaining frame and is connected to the first return channel, and the other auxiliary component is inserted into the first inner circulation raceway housing and the second inner circulation raceway housing and is connected to the second return channel.

[0014] Preferably, the first inner circulation raceway housing is provided with a first guide groove connecting the first oil inlet hole and the first return channel, and the second inner circulation raceway housing is provided with a second guide groove connecting the second oil inlet hole and the second return channel.

[0015] Preferably, a limiting groove is provided on the inner side of the end cover, 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 hole and the oil circuit are connected and disconnected through the oil circuit distributor.

[0016] The present invention has the following beneficial effects: 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 circulating raceway of the slider. The first inner circulating raceway housing and the second inner circulating raceway housing in the inner circulating end cover assembly are staggered to form a first reflux channel and a second reflux channel. These reflux channels are respectively connected to a pair of circulating raceways to ensure the uniform distribution of the lubricating oil. In addition, the design of the first oil inlet hole and the second oil inlet hole enables the lubricating oil to efficiently enter the reflux channel, thereby improving the lubrication effect. 2. The present invention avoids the need to open an oil groove on the cage, thereby maintaining the cross-sectional area of ​​the cage and improving its structural strength. Under high load or impact load conditions, the cage is not easily deformed or damaged, 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; 3. The inner circulation end cover assembly adopts a detachable design, which is convenient for assembly and maintenance. When it is necessary to inspect or replace parts, the inner circulation end cover assembly can be quickly disassembled, reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the slider; Figure 2 This is the structural exploded diagram of the slider; Figure 3 It is a structural schematic diagram of the inner circulation end cover assembly; Figure 4 It is a structural schematic diagram of the inner circulation end cover assembly and the retaining frame; Figure 5 is a schematic diagram of the structure of the cage; Figure 6is a schematic diagram of the structure of the end cover; Figure 7 It is a rear view of the second inner circulation raceway housing; Figure 8 It is the left side view of the end cover, retainer and auxiliary parts; Fig. 9 It is the right side view of the end cover, retainer and auxiliary parts; Fig.10 It is a structural schematic diagram of the slider body.

[0018] Description of reference numerals: 1. Slider body; 100. Circulation raceway; 101. Cage; 102. Inner circulation raceway portion; 103. Inner raceway hole; 104. Auxiliary parts; 2. End cover; 200. Oil inlet hole; 201. Positioning groove; 202. First oil groove; 203. Sealing sheet; 204. Second oil groove; 205. Limiting groove; 206. Oil distributor; 3. Inner circulation end cover assembly; 300. First inner circulation raceway shell; 301. Second inner circulation raceway shell; 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 DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings: See attached Figures 1 to 10 As shown: an oil circuit assembly on a linear slider, comprising: a slider body 1, an end cover 2 connected to the two end surfaces of the slider body 1 and having an oil inlet hole 200, a retaining frame 101 arranged in the slider body 1 and cooperating with the slider body 1 and the end cover 2 to form a pair of circulating raceways 100, and an oil channel that cooperates to form a connecting oil inlet hole 200 and a pair of circulating raceways 100, wherein both ends of the retaining frame 101 are provided with an inner circulating raceway 100, a detachable inner circulating end cover assembly is installed on the inner side of the cover plate, the end cover 2 is connected to the slider body 1, so that the inner circulating end cover assembly is sleeved on the inner circulating raceway 100, and the oil entering the oil inlet hole 200 flows into the inner circulating end cover assembly through the oil channel and flows into the pair of circulating raceways 100 respectively.

[0020] The slider body 1 serves as the basic structure of the entire oil circuit assembly, and is internally provided with an inner raceway hole 103 for guiding the movement of rolling bodies (such as balls or rollers). The end covers 2 are connected to the two end surfaces of the slider body 1, and the end covers 2 are provided with oil inlet holes 200. The end covers 2 are connected to the slider body 1 by bolts or other fasteners to ensure sealing and structural stability. The retaining frame 101 is arranged in the slider body 1, and cooperates with the slider body 1 and the end covers 2 to form a pair of circulating raceways 100. Inner circulating raceways 100 are arranged at both ends of the retaining frame 101, and these inner circulating raceways 100 are used to guide the circulating movement of the rolling bodies inside the slider. The oil channel connects the oil inlet hole 200 and the pair of circulating raceways 100 to ensure that the lubricating oil can be evenly distributed to various parts of the slider. In this embodiment, an inner circulation end cover assembly is provided, and the end cover 2 is connected to the slider body 1, so that the inner circulation end cover assembly is firmly mounted on the inner circulation raceway 100, and the oil entering the oil inlet hole 200 flows into the inner circulation end cover assembly through the oil channel 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.

[0021] Specifically, Figures 2 to 4 As shown, the inner circulation end cover assembly includes a first inner circulation raceway 100 shell and a second inner circulation raceway 100 shell sleeved on the first inner circulation raceway 100 shell. The first inner circulation raceway 100 shell and the second inner circulation raceway 100 shell are staggered. The first inner circulation raceway 100 shell is sleeved on the inner circulation raceway 100 part, and the second inner circulation raceway 100 shell is inserted on the inner side of the end cover 2.

[0022] The first inner circulation raceway 100 shell is sleeved on the inner circulation raceway 100 part of the retaining frame 101, and is used to form a part of the inner circulation raceway 100. The second inner circulation raceway 100 shell is sleeved on the first inner circulation raceway 100 shell, and the two are staggered. The second inner circulation raceway 100 shell is inserted into the inner positioning groove 201 of the end cover 2. The second inner circulation raceway 100 shell is inserted into the inner positioning groove 201 of the end cover 2 to ensure its precise match with the first inner circulation raceway 100 shell and the retaining frame 101 to form a stable inner circulation raceway 100 structure.

[0023] Furthermore, if Figure 3 , Figure 4 , Figure 6 and Figure 8As shown, a first reflow channel 302 is formed between the inner wall of the first inner circulation raceway 100 shell and the outer wall of the inner circulation raceway 100, and a second reflow channel 303 is formed between the inner wall of the second inner circulation raceway 100 shell and the outer wall of the first inner circulation raceway 100 shell. The first reflow channel 302 extends in a horizontal direction, and the second reflow channel 303 extends in a vertical direction. A pair of circulation raceways 100 are respectively connected to the first reflow channel 302 and the second reflow channel 303.

[0024] A first reflow channel 302 is formed between the inner wall of the first inner circulation raceway 100 shell and the outer wall of the inner circulation raceway 100, and the channel extends in a horizontal direction. A second reflow channel 303 is formed between the inner wall of the second inner circulation raceway 100 shell and the outer wall of the first inner circulation raceway 100 shell, and the channel extends in a vertical direction. A pair of circulation raceways 100 are respectively connected to the first reflow channel 302 and the second reflow channel 303 to ensure uniform distribution of lubricating oil. The design of the first reflow channel 302 and the second reflow channel 303 ensures that the lubricating oil can enter from the oil inlet hole 200 and be evenly distributed to each circulation raceway 100 of the slider through the oil channel, thereby reducing friction and improving lubrication effect.

[0025] Furthermore, if Figure 3 , Figure 4 and Figure 7 As shown, the second inner circulation raceway 100 shell is provided with a first oil inlet hole 304 and a second oil inlet hole 305 connected to the oil channel. The first oil inlet hole 304 and the second oil inlet hole 305 are vertically arranged along the height of the shell. 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.

[0026] The second inner circulation raceway 100 is provided with a first oil inlet hole 304 and a second oil inlet hole 305 on the shell. The two holes are arranged vertically along the height of the shell. 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 to achieve uniform distribution.

[0027] Specifically, Figures 6 to 9 As shown, a positioning groove 201 is provided on the inner side of the end cover 2, the shell of the second inner circulation raceway 100 is inserted into the positioning groove 201, and the first oil inlet hole 304 and the second oil inlet hole 305 are connected to the oil channel.

[0028] A positioning groove 201 is provided on the inner side of the end cover 2, and the shell of the second inner circulation raceway 100 is inserted into the positioning groove 201 to ensure its precise fit with the end cover 2. The first oil inlet hole 304 and the second oil inlet hole 305 are provided on the shell of the second inner circulation raceway 100. The two holes are arranged vertically along the height of the shell, 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 channel to ensure the smooth flow of the lubricating oil. The shell of the second inner circulation raceway 100 is inserted into the positioning groove 201 of the end cover 2 to ensure its precise connection with the first oil inlet hole 304 and the second oil inlet hole 305 to form a stable oil circuit system. This design ensures that the lubricating oil can enter from the oil inlet hole 200 and smoothly flow into the first return channel 302 and the second return channel 303 to achieve uniform distribution.

[0029] Furthermore, if Figure 6 and Figure 8 As shown, a first oil groove 202 is provided on the inner side of the end cover 2, one end of the first oil groove 202 is connected to the oil inlet hole 200, and the other end of the first oil groove 202 extends to the positioning groove 201, and a sealing sheet 203 is clamped on the inner side of the end cover 2, and the sealing sheet 203 is attached to the first oil groove 202 to form a first oil circuit.

[0030] A first oil groove 202 is provided on the inner side of the end cover 2, one end of the first oil groove 202 is connected to the oil inlet hole 200, and the other end extends to the positioning groove 201. A sealing sheet 203 is clamped on the inner side of the end cover 2, and the sealing sheet 203 is abutted against the first oil groove 202 to form a first oil circuit. The design of the sealing sheet 203 ensures the sealing of the first oil circuit, 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, thereby ensuring the smooth flow of oil.

[0031] Furthermore, if Figures 6 to 8 As shown, a second oil groove 204 connected to the first oil groove 202 is provided on the inner side of the end cover 2, and the second oil groove 204 is located on the side of the positioning groove 201, and a guide groove 306 matching the second oil groove 204 and connected to the first oil inlet hole 304 and the second oil inlet hole 305 respectively is provided on the outer side of the second inner circulation raceway 100 shell, and the second inner circulation raceway 100 shell is inserted in the positioning groove 201, and the guide groove 306 and the second oil groove 204 form a second oil circuit, and the first oil circuit and the second oil circuit together form an oil circuit.

[0032] A second oil groove 204 connected to the first oil groove 202 is provided on the inner side of the end cover 2, and 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 is provided on the outer side of the second inner circulation raceway 100 shell. These guide grooves 306 are connected to the first oil inlet hole 304 and the second oil inlet hole 305 respectively. The second inner circulation raceway 100 shell is inserted in the positioning groove 201, and the guide groove 306 and the second oil groove 204 form a second oil circuit. The first oil circuit and the second oil circuit together constitute a complete oil circuit 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 circuit, forming a complete oil circuit system, ensuring that the lubricating oil can enter from the oil inlet hole 200, and then flow smoothly to the first reflux channel 302 and the second reflux channel 303 through the first oil groove 202 and the second oil groove 204, so as to achieve uniform distribution and improve the reliability and lubrication effect of the system.

[0033] Specifically, Figure 2 and Fig.10 As shown, a pair of inner raceway holes 103 are opened in the slider body 1 along its length direction, and each inner raceway hole 103 is provided with an auxiliary part 104 for guiding the circulation raceway 100 and the rollers installed on the circulation raceway 100 to move therein, wherein one auxiliary part 104 is inserted in the first inner circulation raceway 100 shell and the retaining frame 101 and is connected to the first return channel 302, and the other auxiliary part 104 is inserted in the first inner circulation raceway 100 shell and the second inner circulation raceway 100 shell and is connected to the second return channel 303.

[0034] A pair of inner raceway holes 103 are provided in the slider body 1 along its length direction, and each inner raceway hole 103 is provided with an auxiliary part 104 for guiding the circulation raceway 100 and the rollers installed on the circulation raceway 100 to move therein, wherein one auxiliary part 104 is inserted in the first inner circulation raceway 100 shell and the retaining frame 101, and is connected to the first return channel 302; the other auxiliary part 104 is inserted in the first inner circulation raceway 100 shell and the second inner circulation raceway 100 shell, and is connected to the second return channel 303. The design of the auxiliary part 104 ensures the smooth movement of the rollers in the inner raceway holes 103, and at the same time is connected to the return channel to ensure the uniform distribution of the lubricating oil, which not only improves the movement accuracy and efficiency of the rollers, but also ensures that the lubricating oil can effectively reach each part that needs lubrication, thereby reducing friction and extending the service life of the slider.

[0035] Furthermore, if Figure 4 As shown, the first inner circulation raceway 100 shell is provided with a first guide groove 307 connecting the first oil inlet hole 304 and the first return channel 302, and the second inner circulation raceway 100 shell is provided with a second guide groove 308 connecting the second oil inlet hole 305 and the second return channel 303.

[0036] The first inner circulation raceway 100 shell is provided with a first guide groove 307 connecting the first oil inlet hole 304 and the first return channel 302, and the second inner circulation raceway 100 shell is provided with a second guide groove 308 connecting the second oil inlet hole 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 can smoothly flow into the first return channel 302 and the second return channel 303 after entering from the oil inlet hole 200, thereby improving the lubrication effect and 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.

[0037] Specifically, Figure 6 As shown, a limiting groove 205 is provided on the inner side of the end cover 2, and an oil circuit distributor 206 is installed in the limiting groove 205. The oil circuit distributor 206 is rotatably provided in the limiting groove 205, and the oil inlet hole 200 and the oil circuit are connected and disconnected through the oil circuit distributor 206.

[0038] A limiting groove 205 is provided on the inner side of the end cover 2, and an oil circuit distributor 206 is installed in the limiting groove 205. The oil circuit distributor 206 is rotatably arranged in the limiting groove 205, and the oil flow rate is precisely adjusted by controlling the connection and disconnection between the oil inlet hole 200 and the oil circuit. The design of the oil circuit distributor 206 enables the connection and disconnection between the oil inlet hole 200 and the oil circuit to be flexibly controlled, 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.

[0039] It is worth mentioning that Figure 2 As shown, the end cover 2 is mirror-imaged with two inner circulation end cover assemblies along the oil inlet hole 200, and the retaining frame 101 in the slider body 1 is also similarly provided with a pair. The slider body 1 and the end cover 2, etc. can only describe a single side in this embodiment, but are not limited to a single-side oil circuit assembly.

[0040] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An oil circuit assembly on a linear slider, characterized in that: include: A slider body, an end cover connected to both end surfaces of the slider body and having an oil inlet hole, a retainer arranged in the slider body and cooperating with the slider body and the end cover to form a pair of circulating raceways, and an oil passage connecting the oil inlet hole and the pair of circulating raceways, wherein: Inner circulation raceways are provided at both ends of the retaining frame, and a detachable inner circulation end cover assembly is installed on the inner side of the cover plate. The end cover is connected to the slider body so that the inner circulation end cover assembly is sleeved on the inner circulation raceway portion. The oil entering the oil inlet hole flows into the inner circulation end cover assembly through the oil channel and flows into a pair of circulation raceways respectively.

2. The oil circuit assembly on the linear slider according to claim 1 is characterized in that: The inner circulation end cover assembly includes a first inner circulation raceway shell and a second inner circulation raceway shell sleeved on the first inner circulation raceway shell. The first inner circulation raceway shell and the second inner circulation raceway shell are staggered. The first inner circulation raceway shell is sleeved on the inner circulation raceway portion, and the second inner circulation raceway shell is inserted on the inner side of the end cover.

3. The oil circuit assembly on the linear slider according to claim 2 is characterized in that: A first reflow channel is formed between the inner wall of the first inner circulation raceway shell and the outer wall of the inner circulation raceway portion, and a second reflow channel is formed between the inner wall of the second inner circulation raceway shell and the outer wall of the first inner circulation raceway shell. The first reflow channel extends in a horizontal direction, and the second reflow channel extends in a vertical direction. A pair of circulation raceways are respectively connected to the first reflow channel and the second reflow channel.

4. The oil circuit assembly on the linear slider according to claim 3 is characterized in that: The second inner circulation raceway housing is provided with a first oil inlet hole and a second oil inlet hole connected to the oil channel. The first oil inlet hole and the second oil inlet hole are vertically arranged along the height of the housing. The first oil inlet hole is connected to the first reflux channel, and the second oil inlet hole is connected to the second reflux channel.

5. The oil circuit assembly on the linear slider according to claim 4 is characterized in that: A positioning groove is arranged on the inner side of the end cover, the second inner circulation raceway housing is inserted into the positioning groove, and the first oil inlet hole and the second oil inlet hole are connected to the oil channel.

6. The oil circuit assembly on the linear slider according to claim 4 is characterized in that: A first oil groove is arranged on the inner side of the end cover, one end of the first oil groove is connected to the oil inlet hole, and the other end of the first oil groove extends to the positioning groove. A sealing sheet is clamped on the inner side of the end cover, and the sealing sheet is attached to the first oil groove to form a first oil circuit.

7. The oil circuit assembly on the linear slider according to claim 6 is characterized in that: A second oil groove connected with the first oil groove is arranged on the inner side of the end cover, and the second oil groove is located on the side of the positioning groove. A guide groove matching with the second oil groove and respectively connected with the first oil inlet hole and the second oil inlet hole is arranged on the outer side of the second inner circulation raceway shell. The second inner circulation raceway shell is inserted in the positioning groove. The guide groove and the second oil groove form a second oil circuit, and the first oil circuit and the second oil circuit together form the oil circuit.

8. The oil circuit assembly on the linear slider according to claim 3 is characterized by: A pair of inner raceway holes are provided in the slider body along its length direction, and each of the inner raceway holes is provided with an auxiliary component for guiding the circulation raceway and the rollers installed on the circulation raceway to move therein, wherein one auxiliary component is inserted into the first inner circulation raceway housing and the retaining frame and is connected to the first return channel, and the other auxiliary component is inserted into the first inner circulation raceway housing and the second inner circulation raceway housing and is connected to the second return channel.

9. The oil circuit assembly on the linear slider according to claim 8, characterized in that: The first inner circulation raceway housing is provided with a first guide groove connecting the first oil inlet hole and the first return channel, and the second inner circulation raceway housing is provided with a second guide groove connecting the second oil inlet hole and the second return channel.

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

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