Oiling mechanism for guide rail of glass lifter

Abstract

The invention discloses an oil coating mechanism for a guide rail of a glass lifter, which belongs to the utilization of the processing technology of automobile parts and comprises a mounting plate (1), a first oil coating device (2) and a second oil coating device (3), the first oiling device (2) is positioned at one end of the mounting plate (1), and the second oiling device (3) is positioned at the other end of the mounting plate (1); a lifting device (4) is arranged on the mounting plate (1); the lifting device (4) is connected with the second oiling device (3); the first oiling device (2) is used for oiling the oiling surface on one side of the guide rail, and the lifting device (4) and the second oiling cylinder (9) are used for adjusting the position of the second oiling device (3), so that the special-shaped oiling surface on the other side of the guide rail is also oiled, the problem that the oiling surfaces on the two sides of the guide rail are asymmetric and cannot be oiled at the same time is solved, and the oiling efficiency of the guide rail is improved; the oiling device can meet the oiling requirements of different types of guide rails, and the production efficiency of products is improved.

Description

Technical Field

[0001] This invention belongs to the field of automotive parts processing technology. Specifically, this invention relates to a window regulator guide rail oiling mechanism. Background Technology

[0002] During the production of automotive window regulators, an oiling process is required on the guide rails to reduce friction and vibration between the guide rails and the sliders, prevent rust and wear, and improve product quality.

[0003] Existing automotive window regulator oiling processes mainly employ single-sided or double-sided oiling, with the oiling surfaces being symmetrical when oiling on both sides. For example, the specification of Chinese invention patent CN 120479689 A, published on August 15, 2025, discloses a window regulator guide rail oiling head structure and guide rail oiling device, including an oiling head and an oil brush assembly disposed on the oiling head. The oiling head can apply lubricating grease to the surface of the window regulator guide rail, and the oil brush assembly moves with the oiling head to spread the grease evenly on the window regulator guide rail, making the grease evenly spread on the surface of the window regulator guide rail, which helps to reduce the friction between the window regulator guide rail and the regulator slider or glass bracket. However, this device is only applicable when the oiling surfaces are symmetrical when oiling on both sides of the guide rail. When the oiling surfaces are asymmetrical, double-sided oiling cannot be performed simultaneously. Summary of the Invention

[0004] The present invention aims to provide a window lift guide rail oiling mechanism that can simultaneously apply oil to the oiling surfaces on both sides of the guide rail when the oiling surfaces on both sides are not symmetrical.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a glass lifter guide rail oiling mechanism, comprising a mounting plate, a first oiling device, and a second oiling device; the first oiling device is located at one end of the mounting plate, and the second oiling device is located at the other end of the mounting plate; a lifting device is provided on the mounting plate; the lifting device and the second oiling device are connected.

[0006] Furthermore, the first oiling device includes a first oiling needle, a first oiling nozzle mounting base, and a first oiling nozzle; the first oiling needle is connected to the mounting plate; one end of the first oiling nozzle mounting base is connected to the mounting plate, and the other end of the first oiling nozzle mounting base is connected to the first oiling nozzle; the first oiling needle is located above the first oiling nozzle.

[0007] Furthermore, the second oiling device includes a second oiling needle, a second oiling nozzle mounting base, and a second oiling nozzle; the second oiling needle is connected to the mounting plate; one end of the second oiling nozzle mounting base is connected to the lifting device, and the other end of the second oiling nozzle mounting base is connected to the second oiling nozzle; the second oiling needle is located above the second oiling nozzle.

[0008] Furthermore, the mounting plate is provided with a first oiling cylinder; the first oiling cylinder includes a first piston rod, and the end of the first piston rod is provided with a first corner seat; one end of the first corner seat is connected to the first oiling nozzle mounting seat, and one side of the first corner seat is connected to the first piston rod.

[0009] Furthermore, the lifting device includes a lifting cylinder; the lifting cylinder includes a lifting piston rod, and a third corner seat is connected to the end of the lifting piston rod; a connecting plate is connected to one side of the third corner seat, and the second oil nozzle mounting seat is connected to the connecting plate.

[0010] Furthermore, the connecting plate is provided with a second oiling cylinder; one side of the second oiling cylinder is connected to the connecting plate; the second oiling cylinder includes a second piston rod, and the end of the second piston rod is provided with a second corner seat; one end of the second corner seat is connected to the second oiling nozzle mounting seat, and one side of the second corner seat is connected to the second piston rod.

[0011] Furthermore, the mounting plate is provided with a pressure roller device; the pressure roller device is connected to the mounting plate; the pressure roller device is located between the first oiling device and the second oiling device.

[0012] Furthermore, the pressure roller device includes a pressure roller mounting base and a pressure roller; one end of the pressure roller mounting base is connected to the mounting plate, and the other end of the pressure roller mounting base is connected to the pressure roller; a pressure roller shaft is provided at the connection between the pressure roller and the pressure roller mounting base; a shaft hole is provided at the end of the pressure roller mounting base; the pressure roller shaft is connected to the pressure roller, and the pressure roller shaft is adapted to the shaft hole.

[0013] Furthermore, the mounting plate is provided with an oiling needle mounting seat; one side of the oiling needle mounting seat is connected to the mounting plate, and one end of the oiling needle mounting seat is connected to the first oiling needle and the second oiling needle.

[0014] Furthermore, the mounting plate is provided with mounting plate mounting holes; the pressure roller mounting seat is provided with pressure roller mounting seat mounting holes; the oiling needle mounting seat is provided with oiling needle mounting seat mounting holes; the mounting plate mounting holes, the pressure roller mounting seat mounting holes, and the oiling needle mounting seat mounting holes are connected.

[0015] A method for applying oil to a glass lifter guide rail specifically comprises: placing the guide rail to be oiled between a first oiling needle and a second oiling needle, wherein one side of the guide rail's oiling surface is located at the first oiling nozzle, and the other side of the guide rail's irregularly shaped oiling surface is located at the second oiling nozzle; the pressure roller of the pressure roller device is located in the guide rail groove, fixing the guide rail in place; activating the first oiling cylinder, extending the first piston rod, driving the first angle seat and the first oiling nozzle mounting seat to move, with the first oiling nozzle adhering to one side of the guide rail's oiling surface; activating the lifting cylinder, extending the lifting piston rod. The third corner seat, connecting plate, and second oiling cylinder are raised and lowered; the second oiling nozzle is aligned with the irregular oiling surface on the other side of the guide rail, the second oiling cylinder is activated, the second piston rod extends, driving the second corner seat and the second oiling nozzle mounting base to move, and the second oiling nozzle is in contact with the irregular oiling surface on the other side of the guide rail; the first and second oiling needles drip oil downwards, the guide rail moves in a straight line along the guide rail groove, and the first and second oiling nozzles evenly cover the oiling surface on one side and the irregular oiling surface on the other side of the guide rail with grease, completing the oiling work.

[0016] The technical advantages of this invention are as follows: The first oiling device applies oil to one side of the guide rail. By adjusting the position of the second oiling nozzle through the lifting device and the second oiling cylinder, the irregularly shaped oiling surface on the other side of the guide rail is also oiled, solving the problem that the oiling surfaces on both sides of the guide rail are asymmetrical and cannot be oiled simultaneously, thus improving the efficiency of guide rail oiling. When the guide rail needs to be oiled on one side, the second oiling device is retracted through the lifting device, and the first oiling device is used for oiling on one side. This invention can meet the oiling needs of different types of guide rails and improve the production efficiency of the product. Attached Figure Description

[0017] This manual includes the following figures, which illustrate the following: Figure 1 This is a front view of the overall structure of the window lifter guide rail oiling mechanism; Figure 2 This is a rear view of the overall structure of the window lifter guide rail oiling mechanism; Figure 3 yes Figure 1 A schematic diagram of the first oiling cylinder structure of the oiling mechanism for the middle window lifter guide rail; Figure 4 yes Figure 1 Schematic diagram of the second oiling cylinder structure of the oiling mechanism for the middle window lifter guide rail; Figure 5 yes Figure 1 A schematic diagram of the lifting device structure of the guide rail oiling mechanism for the middle window lifter; Figure 6 yes Figure 1 A schematic diagram of the pressure roller mounting base structure of the pressure roller device of the guide rail oiling mechanism of the middle window lifter; Figure 7 yes Figure 1A schematic diagram of the pressure roller structure of the oiling mechanism for the guide rail of the middle window lifter.

[0018] The markings in the diagram are as follows: 1. Mounting plate; 2. First oiling device; 21. First oiling needle; 22. First oiling nozzle mounting seat; 23. First oiling nozzle; 3. Second oiling device; 31. Second oiling needle; 32. Second oiling nozzle mounting seat; 33. Second oiling nozzle; 4. Lifting device; 41. Lifting cylinder; 411. Lifting piston rod; 5. First oiling cylinder; 51. First piston rod; 6. First corner seat; 7. Third corner seat; 8. Connecting plate; 9. Second oiling cylinder; 91. Second piston rod; 10. Second corner seat; 11. Pressure roller device; 12. Pressure roller mounting seat; 13. Pressure roller; 14. Pressure roller shaft; 15. Shaft hole; 16. Oiling needle mounting seat; 17. Mounting hole of mounting plate; 18. Mounting hole of pressure roller mounting seat; 19. Mounting hole of oiling needle mounting seat. Detailed Implementation

[0019] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention, and to facilitate its implementation.

[0020] A window regulator guide rail oiling mechanism, such as Figure 1 As shown, it includes a mounting plate 1, a first oiling device 2, and a second oiling device 3. The first oiling device 2 is located at one end of the mounting plate 1, and the second oiling device 3 is located at the other end of the mounting plate 1. A lifting device 4 is provided on the mounting plate 1. The lifting device 4 and the second oiling device 3 are connected. When the oiling surfaces on both sides of the guide rail that need to be oiled are asymmetrical, the first oiling device 2 can oil one side of the guide rail. The lifting device 4 can be used to raise or lower the second oiling device 3, change the position of the second oiling device 3, and make the other side of the guide rail's irregular oiling surface oiled.

[0021] Specifically, such as Figure 2 As shown, the first oiling device 2 includes a first oiling needle 21, a first oiling nozzle mounting base 22, and a first oiling nozzle 23; the first oiling needle 21 is connected to the mounting plate 1; one end of the first oiling nozzle mounting base 22 is connected to the mounting plate 1, and the other end of the first oiling nozzle mounting base 22 is connected to the first oiling nozzle 23; the function of the first oiling nozzle mounting base 22 is to fix the first oiling nozzle 23 so that the first oiling nozzle 23 can apply oil stably; the first oiling needle 21 is located above the first oiling nozzle 23, and the first oiling needle 21 drips grease onto the first oiling nozzle 23.

[0022] Specifically, such as Figure 1As shown, the second oiling device 3 includes a second oiling needle 31, a second oiling nozzle mounting base 32, and a second oiling nozzle 33; the second oiling needle 31 is connected to the mounting plate 1; one end of the second oiling nozzle mounting base 32 is connected to the lifting device 4, and the other end of the second oiling nozzle mounting base 32 is connected to the second oiling nozzle 33. The function of the second oiling nozzle mounting base 32 is to fix the second oiling nozzle 33 and ensure that the second oiling nozzle 33 applies oil stably; the second oiling needle 31 is located above the second oiling nozzle 33, and the second oiling needle 31 drips grease onto the second oiling nozzle 33.

[0023] Specifically, such as Figure 3 As shown, the mounting plate 1 is provided with a first oiling cylinder 5; the first oiling cylinder 5 includes a first piston rod 51, and a first corner seat 6 is provided at the end of the first piston rod 51; the first corner seat 6 has an L-shaped structure, one end of the first corner seat 6 is connected to the first oiling nozzle mounting seat 22, and one side of the first corner seat 6 is connected to the first piston rod 51; the function of the first oiling cylinder 5 is to adjust the distance between the first oiling nozzle 23 and the oiling surface of the guide rail, so as to ensure that the oiling distance is more accurate and improve the oiling effect.

[0024] Specifically, such as Figure 1 and Figure 5 As shown, the lifting device 4 includes a lifting cylinder 41; the lifting cylinder 41 includes a lifting piston rod 411, and a third corner seat 7 is connected to the end of the lifting piston rod 411; the third corner seat 7 is an L-shaped structure, and a connecting plate 8 is connected to one side of the third corner seat 7. The second oiling nozzle mounting seat 32 is connected to the connecting plate 8. The second oiling nozzle mounting seat 32 can be raised or lowered by the lifting cylinder 41 to ensure that the second oiling nozzle 33 can be flush with the irregular surface of the guide rail.

[0025] Specifically, such as Figure 4 As shown, a second oiling cylinder 9 is provided on the connecting plate 8; one side of the second oiling cylinder 9 is connected to the connecting plate 8; the second oiling cylinder 9 and the lifting cylinder 41 are connected through the connecting plate 8; the second oiling cylinder 9 includes a second piston rod 91, and a second corner seat 10 is provided at the end of the second piston rod 91; one end of the second corner seat 10 is connected to the second oiling nozzle mounting seat 32, and one side of the second corner seat 10 is connected to the second piston rod 91. The function of the second oiling cylinder 9 is to adjust the distance between the second oiling nozzle 33 and the guide rail profile surface to ensure more accurate oiling distance and improve oiling effect.

[0026] Specifically, such as Figure 1 As shown, the mounting plate 1 is provided with a pressure roller device 11; the pressure roller device 11 is connected to the mounting plate 1; the pressure roller device 11 is located between the first oiling device 2 and the second oiling device 3, the first oiling needle 21 and the second oiling needle 31 are located on both sides of the pressure roller device 11 respectively, and the function of the pressure roller device 11 is to fix the slide rail to be oiled so that the oiling surfaces on both sides of the guide rail are fully oiled.

[0027] Specifically, such as Figure 1 , Figure 5 and Figure 6 As shown, the pressure roller device 11 includes a pressure roller mounting base 12 and a pressure roller 13; one end of the pressure roller mounting base 12 is connected to the mounting plate 1, and the other end of the pressure roller mounting base 12 is connected to the pressure roller 13; a pressure roller shaft 14 is provided at the connection between the pressure roller 13 and the pressure roller mounting base 12; a shaft hole 15 is provided at the end of the pressure roller mounting base 12; the pressure roller shaft 14 is connected to the pressure roller 13, the pressure roller shaft 14 is adapted to the shaft hole 15, the pressure roller mounting base 12 facilitates the installation of the pressure roller 13, and the pressure roller 13 can roll in the guide groove of the guide rail to fix the guide rail.

[0028] Specifically, such as Figure 1 , Figure 2 and Figure 5 As shown, the mounting plate 1 is provided with an oiling needle mounting seat 16; one side of the oiling needle mounting seat 16 is connected to the mounting plate 1, and one end of the oiling needle mounting seat 16 is connected to the first oiling needle 21 and the second oiling needle 31. The oiling needle mounting seat 16 provides a stable mounting position for the first oiling needle 21 and the second oiling needle 31, facilitating the maintenance and replacement of the first oiling needle 21 and the second oiling needle 31; the mounting plate 1 is provided with a mounting plate mounting hole 17; the pressure roller mounting seat 12 is provided with a pressure roller mounting seat mounting hole 18; the oiling needle mounting seat 16 is provided with an oiling needle mounting seat mounting hole 19; installation... The mounting holes 17, 18, and 19 of the oiling needle mounting base are connected. There are multiple mounting holes 17 on the mounting plate. By changing the positions of the mounting holes 18 and 19 of the oiling needle mounting base on the mounting plate 1, the positions of the first oiling needle 21, the second oiling needle 31, and the pressure roller 13 can be adjusted, making the oiling position on both sides of the guide rail more precise and improving the oiling quality. The mounting plate 1 and the oiling needle mounting base 16, and the mounting plate 1 and the pressure roller mounting base 12 can be connected by screws to improve the connection strength and facilitate installation or disassembly.

[0029] A method for applying oil to the guide rail of a glass lifter utilizes a guide rail oiling mechanism. Specifically, the guide rail to be oiled is placed between a first oiling needle 21 and a second oiling needle 31, with one side of the guide rail's oiling surface located at the first oiling nozzle 23, and the other side's irregularly shaped oiling surface located at the second oiling nozzle 33. The pressure roller 13 of the pressure roller device 11 is located within the guide rail groove, fixing the guide rail in place. The first oiling cylinder 5 is activated, extending the first piston rod 51 and moving the first angle seat 6 and the first oiling nozzle mounting seat 22, causing the first oiling nozzle 23 to adhere to one side of the guide rail's oiling surface. The lifting cylinder 41 is then activated, raising... The piston rod 411 extends, driving the third corner seat 7, connecting plate 8, and second oiling cylinder 9 to rise and fall; the second oiling nozzle 33 aligns with the irregular oiling surface on the other side of the guide rail, the second oiling cylinder 9 is activated, the second piston rod 91 extends, driving the second corner seat 10 and the second oiling nozzle mounting seat 32 to move, and the second oiling nozzle 33 fits against the irregular oiling surface on the other side of the guide rail; the first oiling needle 21 and the second oiling needle 31 drip oil downwards, the guide rail moves linearly along the guide rail groove, and the first oiling nozzle 23 and the second oiling nozzle 33 evenly cover the oiling surface on one side of the guide rail and the irregular oiling surface on the other side, completing the oiling work.

[0030] The working process of the glass lifter guide rail oiling mechanism is as follows: When the oiling surfaces on both sides of the guide rail to be oiled are asymmetrical, the guide rail to be oiled is placed between the first oiling device 2 and the second oiling device 3, wherein one side of the guide rail's oiling surface is located at the first oiling nozzle 23, and the other side of the guide rail's irregularly shaped oiling surface is located at the second oiling nozzle 33. The pressure roller 13 of the pressure roller device 11 is located in the guide rail groove, fixing the guide rail; the first oiling cylinder 5 is activated, the first piston rod 51 extends, driving the first corner seat 6 and the first oiling nozzle mounting seat 22 to move, so that the first oiling nozzle 23 is attached to one side of the guide rail's oiling surface; then the lifting cylinder 41 is activated, lifting... The piston rod 411 extends, driving the third corner seat 7, connecting plate 8, and second oiling cylinder 9 to rise and fall. When the second oiling nozzle 33 aligns with the irregular oiling surface on the other side of the guide rail, the second oiling cylinder 9 is activated, the second piston rod 91 extends, driving the second corner seat 10 and the second oiling nozzle mounting seat 32 to move, so that the second oiling nozzle 33 is attached to the irregular oiling surface on the other side of the guide rail. Then the first oiling needle 21 and the second oiling needle 31 drip oil downwards, and the guide rail moves in a straight line along the guide rail groove, so that the first oiling nozzle 23 and the second oiling nozzle 33 evenly cover the oiling surface on one side of the guide rail and the irregular oiling surface on the other side, completing the oiling work.

[0031] When the guide rail that needs to be oiled is a single-sided oiling surface, raise the lifting cylinder 41, retract the second oiling device 3, and then use the first oiling device 2 to apply oil to one side.

[0032] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the scope of protection of the present invention.

Claims

1. A glass lifter guide rail oiling mechanism, characterized in that: It includes a mounting plate (1), a first oiling device (2) and a second oiling device (3); the first oiling device (2) is located at one end of the mounting plate (1) and the second oiling device (3) is located at the other end of the mounting plate (1); a lifting device (4) is provided on the mounting plate (1); the lifting device (4) and the second oiling device (3) are connected.

2. The glass lifter guide rail oiling mechanism as described in claim 1, characterized in that: The first oiling device (2) includes a first oiling needle (21), a first oiling nozzle mounting base (22), and a first oiling nozzle (23); the first oiling needle (21) is connected to the mounting plate (1); one end of the first oiling nozzle mounting base (22) is connected to the mounting plate (1), and the other end of the first oiling nozzle mounting base (22) is connected to the first oiling nozzle (23); the first oiling needle (21) is located above the first oiling nozzle (23).

3. The glass lifter guide rail oiling mechanism as described in claim 1, characterized in that: The second oiling device (3) includes a second oiling needle (31), a second oiling nozzle mounting base (32), and a second oiling nozzle (33); the second oiling needle (31) is connected to the mounting plate (1); one end of the second oiling nozzle mounting base (32) is connected to the lifting device (4), and the other end of the second oiling nozzle mounting base (32) is connected to the second oiling nozzle (33); the second oiling needle (31) is located above the second oiling nozzle (33).

4. The glass lifter guide rail oiling mechanism as described in claim 2, characterized in that: The mounting plate (1) is provided with a first oiling cylinder (5); the first oiling cylinder (5) includes a first piston rod (51), and the end of the first piston rod (51) is provided with a first corner seat (6); one end of the first corner seat (6) is connected to the first oiling nozzle mounting seat (22), and one side of the first corner seat (6) is connected to the first piston rod (51).

5. The glass lifter guide rail oiling mechanism as described in claim 3, characterized in that: The lifting device (4) includes a lifting cylinder (41); the lifting cylinder (41) includes a lifting piston rod (411), and a third corner seat (7) is connected to the end of the lifting piston rod (411); a connecting plate (8) is connected to one side of the third corner seat (7), and the second oil nozzle mounting seat (32) is connected to the connecting plate (8).

6. The glass lifter guide rail oiling mechanism as described in claim 5, characterized in that: The connecting plate (8) is provided with a second oiling cylinder (9); one side of the second oiling cylinder (9) is connected to the connecting plate (8); the second oiling cylinder (9) includes a second piston rod (91), and the end of the second piston rod (91) is provided with a second corner seat (10); one end of the second corner seat (10) is connected to the second oiling nozzle mounting seat (32), and one side of the second corner seat (10) is connected to the second piston rod (91).

7. The glass lifter guide rail oiling mechanism as described in claim 6, characterized in that: The mounting plate (1) is provided with a pressure roller device (11); the pressure roller device (11) is connected to the mounting plate (1); the pressure roller device (11) is located between the first oiling device (2) and the second oiling device (3).

8. The glass lifter guide rail oiling mechanism as described in claim 7, characterized in that: The pressure roller device (11) includes a pressure roller mounting base (12) and a pressure roller (13); one end of the pressure roller mounting base (12) is connected to the mounting plate (1), and the other end of the pressure roller mounting base (12) is connected to the pressure roller (13); a pressure roller shaft (14) is provided at the connection between the pressure roller (13) and the pressure roller mounting base (12); a shaft hole (15) is provided at the end of the pressure roller mounting base (12); the pressure roller shaft (14) is connected to the pressure roller (13), and the pressure roller shaft (14) is adapted to the shaft hole (15).

9. The glass lifter guide rail oiling mechanism as described in claim 8, characterized in that: The mounting plate (1) is provided with an oiling needle mounting seat (16); one side of the oiling needle mounting seat (16) is connected to the mounting plate (1), and one end of the oiling needle mounting seat (16) is connected to the first oiling needle (21) and the second oiling needle (31); the mounting plate (1) is provided with a mounting plate mounting hole (17); the pressure roller mounting seat (12) is provided with a pressure roller mounting seat mounting hole (18); the oiling needle mounting seat (16) is provided with an oiling needle mounting seat mounting hole (19); the mounting plate mounting hole (17), the pressure roller mounting seat mounting hole (18) and the oiling needle mounting seat mounting hole (19) are connected.

10. A method for applying oil to the guide rail of a glass lifter, implemented using the oiling mechanism for the guide rail of a glass lifter as described in any one of claims 1-9, characterized in that: Specifically: Place the guide rail to be coated between the first coating needle (21) and the second coating needle (31), with one side of the guide rail's coating surface located at the first coating nozzle (23) and the other side of the guide rail's irregularly shaped coating surface located at the second coating nozzle (33). The pressure roller (13) of the pressure roller device (11) is located in the guide rail groove to fix the guide rail. Start the first coating cylinder (5), and the first piston rod (51) extends, driving the first corner seat (6) and the first coating nozzle mounting seat (22) to move, so that the first coating nozzle (23) fits against one side of the guide rail's coating surface. Start the lifting cylinder (41), and the lifting piston rod (411) extends, driving the third corner seat (7) to move. The connecting plate (8) and the second oiling cylinder (9) are raised and lowered; the second oiling nozzle (33) is aligned with the irregular oiling surface on the other side of the guide rail, the second oiling cylinder (9) is started, the second piston rod (91) extends, driving the second corner seat (10) and the second oiling nozzle mounting seat (32) to move, and the second oiling nozzle (33) is attached to the irregular oiling surface on the other side of the guide rail; the first oiling needle (21) and the second oiling needle (31) drip oil downwards, the guide rail moves in a straight line along the guide rail groove, and the first oiling nozzle (23) and the second oiling nozzle (33) evenly cover the oiling surface on one side of the guide rail and the irregular oiling surface on the other side, completing the oiling work.

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