Numerically-controlled machine tool spindle lubricating mechanism

Abstract

The utility model relates to the technical field of numerical control machine tools, in particular to a numerical control machine tool spindle lubricating mechanism which comprises a base, a spindle box is fixedly connected to the surface of the base, a driving motor is fixedly connected to one side of the spindle box, and a spindle seat is connected to the other side of the spindle box through bolts. A protective sleeve is fixedly connected to the surface of the spindle seat, a spindle body is arranged in the spindle box, a storage bin is fixedly connected to the surface of the protective sleeve, a connecting groove is formed in the protective sleeve, and an injection hole and a through hole are formed in the surface of the storage bin. According to the utility model, the lubricating mechanism is arranged on the surface of the sheath, so that the joint of the main shaft body and the sheath after long-time use can be lubricated, the blockage condition in the rotating process of the main shaft body is avoided, the influence on the rotating speed of the main shaft body is further avoided, the energy loss can be reduced, and the service life of the main shaft body is prolonged. And the operation of the numerical control machine tool can be smoothly carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tools, in particular to a main shaft lubrication mechanism for numerical control machine tools. Background Art

[0002] The machine tool spindle refers to the axis on the machine tool that drives the workpiece or tool to rotate. In the machine, it is mainly used to support transmission parts such as gears and pulleys, transmit motion and torque, and some are also used to clamp workpieces.

[0003] The spindle of a CNC machine tool is rotated by a driving motor to drive the device installed on the spindle to operate. However, during the long-term use of the existing CNC machine tool spindle, the lubrication effect of the connection between the spindle shaft and the sleeve is easily consumed and loses its lubrication effect after long-term use, which can easily cause blockage of the spindle shaft rotation and affect the rotation rate. Utility Model Content

[0004] The purpose of the utility model is to provide a CNC machine tool spindle lubrication mechanism to solve the problem raised in the above-mentioned background technology that during the long-term use of the CNC machine tool spindle, the lubrication effect at the connection between the spindle shaft and the sleeve is easily consumed and loses the lubrication effect after long-term use, which easily causes the spindle shaft to rotate blocked and affects the rotation rate.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a spindle lubrication mechanism for a numerically controlled machine tool, comprising a base, a spindle box is fixedly connected to the surface of the base, a drive motor is fixedly connected to one side of the spindle box, a spindle seat is connected to the other side of the spindle box by bolts, a sleeve is fixedly connected to the surface of the spindle seat, a spindle shaft body is arranged inside the spindle box, a storage bin is fixedly connected to the surface of the sleeve, a connecting groove is opened inside the sleeve, an injection hole and a through hole are opened on the surface of the storage bin, a sealing plug is installed on the surface of the injection hole, a discharge pipe and a connecting rod are fixedly connected to the surface of the storage bin, an abutment plate is arranged inside the base, a pull rod is fixedly connected to the surface of the abutment plate, a partition is fixedly connected to the surface of the pull rod, a support spring is fixedly connected to the surface of the partition, a limit plate is movably connected to the surface of the connecting rod, a through hole is opened inside the limit plate, a scraper rod is arranged on the surface of the sleeve, a rotating hole is opened on the surface of the scraper rod, a screw is fixedly connected to the surface of the sleeve, and a nut is installed on the surface of the screw.

[0006] Preferably, one side of the sealing plug is plug-connected to the surface of the injection hole, and the other side of the sealing plug is fit-connected to the outer surface of the storage bin.

[0007] Preferably, the diameter of the through hole is the same as the inner diameter of the discharge pipe, the discharge pipe is installed on the surface of the connecting groove, the two sides of the abutment plate are slidably connected to the inner surface of the storage bin, and a movable hole is opened on the surface of the storage bin.

[0008] Preferably, the pull rod is connected to the surface of the storage bin through a movable hole, the cross section of the pull rod is "T" shaped, and the size of the partition is larger than the size of the support spring.

[0009] Preferably, the partition is abutted against the surface of the limit plate, one end of the support spring is fixedly connected to the outer surface of the storage bin, the other end of the support spring is fixedly connected to the surface of the partition, and the limit plate is rotatably connected to the surface of the connecting rod through a through hole.

[0010] Preferably, one end of the scraper rod is movably connected to the surface of the screw rod through a rotating hole, and the other end of the scraper rod is abutted and connected to the surface of the main shaft body. The size of the rotating hole is larger than that of the screw rod, and the screw rod is provided in two groups.

[0011] Preferably, the two groups of screws are arranged on both sides of the main shaft body, one end of the screw is fixedly connected to the surface of the sleeve, and the other end of the screw is connected to the surface of the nut through a thread, and the nut is abutted and connected to the surface of the scraper rod, and the size of the nut is larger than the size of the rotating hole.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] By arranging a lubrication mechanism on the surface of the sleeve, the connection between the main shaft body and the sleeve can be lubricated after long-term use, so as to avoid blockage during the rotation of the main shaft body, thereby avoiding affecting the rotation rate of the main shaft body, and at the same time reducing energy loss, so that the operation of the CNC machine tool can proceed smoothly. Through the action of the support spring, a pulling force can be applied to the partition, so that when the lubrication mechanism is not in use, the abutment plate can seal the through hole to play the role of a valve, and the scraper rod can scrape off excess lubricant and impurities from the main shaft body to achieve a cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view stereoscopic schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a right-side perspective schematic diagram of the structure of the utility model;

[0016] Figure 3 It is a partial three-dimensional cross-sectional schematic diagram of the structure of the storage bin of the utility model;

[0017] Figure 4 It is a partial three-dimensional cross-sectional schematic diagram of the structure of the scraper rod of the utility model;

[0018] Figure 5 For this utility model Figure 3 Schematic diagram of a partial three-dimensional cross-sectional view of the structure of the middle limit plate.

[0019] In the figure: 1. base; 2. spindle box; 3. drive motor; 4. spindle seat; 5. sleeve; 6. spindle shaft; 7. storage bin; 8. connecting groove; 9. injection hole; 10. sealing plug; 11. through hole; 12. discharge pipe; 13. abutment plate; 14. pull rod; 15. partition; 16. support spring; 17. connecting rod; 18. limit plate; 19. through hole; 20. scraper rod; 21. rotating hole; 22. screw; 23. nut. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5 , an embodiment provided by the utility model:

[0022] A spindle lubrication mechanism for a numerically controlled machine tool comprises a base 1, a spindle box 2 is fixedly connected to the surface of the base 1, a driving motor 3 is fixedly connected to one side of the spindle box 2, a spindle seat 4 is connected to the other side of the spindle box 2 by bolts, a sleeve 5 is fixedly connected to the surface of the spindle seat 4, a spindle shaft 6 is arranged inside the spindle box 2, a storage bin 7 is fixedly connected to the surface of the sleeve 5, a connecting groove 8 is provided inside the sleeve 5, an injection hole 9 and a through hole 11 are provided on the surface of the storage bin 7, a sealing plug 10 is installed on the surface of the injection hole 9, a discharge pipe 12 and a connecting rod 17 are fixedly connected to the surface of the storage bin 7, an abutment plate 13 is arranged inside the base 1, a pull rod 14 is fixedly connected to the surface of the abutment plate 13, and a surface of the pull rod 14 A partition 15 is fixedly connected, and a support spring 16 is fixedly connected to the surface of the partition 15. A limit plate 18 is movably connected to the surface of the connecting rod 17, and a through hole 19 is opened inside the limit plate 18. A scraper rod 20 is arranged on the surface of the sleeve 5, and a rotating hole 21 is opened on the surface of the scraper rod 20. A screw rod 22 is fixedly connected to the surface of the sleeve 5, and a nut 23 is installed on the surface of the screw 22. The spindle shaft 6 is rotated by the drive motor 3. A certain amount of lubricant is stored in the storage bin 7. When lubrication is needed, lubrication can be achieved by opening the lubrication mechanism. Under the action of the connecting groove 8, the discharge pipe 12 can be placed, so that the lubricant can slowly drip into the space between the sleeve 5 and the spindle shaft 6 along the discharge pipe 12.

[0023] Furthermore, one side of the sealing plug 10 is plugged into the surface of the injection hole 9, and the other side of the sealing plug 10 is fitted and connected to the outer surface of the storage bin 7. Under the action of the sealing plug 10, the injection hole 9 is sealed, and the sealing plug 10 is made of rubber and is tightly connected to the injection hole 9.

[0024] Furthermore, the diameter of the through hole 11 is the same as the inner diameter of the discharge pipe 12. The discharge pipe 12 is installed on the surface of the connecting groove 8. The two sides of the abutment plate 13 are slidably connected to the inner surface of the storage bin 7. A movable hole is opened on the surface of the storage bin 7. The lubricant in the storage bin 7 can enter the discharge pipe 12 from the through hole 11 and flow onto the spindle shaft 6 from the other end of the discharge pipe 12. The abutment plate 13 plays a role in opening and closing the through hole 11 to control the injection of the lubricant.

[0025] Furthermore, the pull rod 14 is connected to the surface of the storage bin 7 through a movable hole, the cross section of the pull rod 14 is "T" shaped, and the size of the partition 15 is larger than that of the support spring 16. Under the action of the pull rod 14, the effect of pulling the abutment plate 13 is achieved.

[0026] Furthermore, the partition 15 is abutted against the surface of the limit plate 18, one end of the support spring 16 is fixedly connected to the outer surface of the storage bin 7, and the other end of the support spring 16 is fixedly connected to the surface of the partition 15. The limit plate 18 is rotatably connected to the surface of the connecting rod 17 through the through hole 19. Under the action of the partition 15, the support spring 16 is installed so that the support spring 16 provides a pulling force on the partition 15, thereby causing the pull rod 14 to tend to move into the storage bin 7.

[0027] Furthermore, one end of the scraper rod 20 is movably connected to the surface of the screw rod 22 through the rotating hole 21, and the other end of the scraper rod 20 is abutted and connected to the surface of the main shaft body 6. The size of the rotating hole 21 is larger than the size of the screw rod 22. The screw rod 22 is provided with two groups. Under the action of the scraper rod 20, the lubricant and other impurities seeping out from the connection between the sleeve 5 and the main shaft body 6 can be scraped off, thereby achieving a cleaning effect.

[0028] Furthermore, two groups of screws 22 are arranged on both sides of the main shaft body 6, one end of the screw 22 is fixedly connected to the surface of the sleeve 5, and the other end of the screw 22 is connected to the surface of the nut 23 through a thread, and the nut 23 is abutted and connected to the surface of the scraper rod 20. The size of the nut 23 is larger than the size of the rotating hole 21. The scraper rod 20 is rotated around the screw 22 through the rotating hole 21. When not in use, it can be rotated to a direction away from the main shaft body 6. Under the connection between the screw 22 and the nut 23, the scraper rod 20 can be fixed after the abutment.

[0029] Working principle: After using the spindle shaft 6 many times, first remove the sealing plug 10 from the surface of the storage bin 7 in advance, and inject the lubricant into the storage bin 7 through the injection hole 9. When lubrication is needed, the operator can pull the pull rod 14 to move it along the movable hole to drive the movement of the partition 15. The abutment plate 13 leaves the hole position of the through hole 11 and slides along the inner surface of the storage bin 7, while the support spring 16 is in a stretched state. After pulling to a certain distance, move the limit plate 18 so that it passes through the through hole 19 and rotates around the connecting rod 17. When the limit plate 18 is placed directly below the partition 15, release the pull rod 14 so that the partition 15 abuts against the limit plate 18. The lubricant flows into the discharge pipe 12 through the exposed through hole 11 and drips on the spindle shaft 6. Turn on the drive motor 3 to drive the spindle shaft 6 to rotate, so that the lubricant is evenly applied to the spindle shaft 6.

[0030] After lubrication, first loosen the nut 23 through the action of the thread so that it no longer abuts against the scraper rod 20. At this time, move the two groups of scraper rods 20 to rotate around the screw rods 22 to which they are connected, and then abut the other ends of the scraper rods 20 against the main shaft body 6. Tighten the nut 23 again to make it abut against the scraper rod 20 again. After the main shaft body 6 rotates, the scraper rods 20 scrape off excess lubricant or impurities on its surface.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A spindle lubrication mechanism for a CNC machine tool, comprising a base (1), characterized in that: The surface of the base (1) is fixedly connected to a spindle box (2), one side of the spindle box (2) is fixedly connected to a drive motor (3), the other side of the spindle box (2) is connected to a spindle seat (4) by bolts, the surface of the spindle seat (4) is fixedly connected to a sleeve (5), the interior of the spindle box (2) is provided with a spindle shaft (6), the surface of the sleeve (5) is fixedly connected to a storage bin (7), the interior of the sleeve (5) is provided with a connecting groove (8), the surface of the storage bin (7) is provided with an injection hole (9) and a through hole (11), the surface of the injection hole (9) is installed with a sealing plug (10), the surface of the storage bin (7) is fixedly connected to a discharge pipe (12) and A connecting rod (17), an abutment plate (13) is arranged inside the base (1), a pull rod (14) is fixedly connected to the surface of the abutment plate (13), a partition plate (15) is fixedly connected to the surface of the pull rod (14), a support spring (16) is fixedly connected to the surface of the partition plate (15), a limit plate (18) is movably connected to the surface of the connecting rod (17), a through hole (19) is provided inside the limit plate (18), a scraper rod (20) is arranged on the surface of the sleeve (5), a rotating hole (21) is provided on the surface of the scraper rod (20), a screw rod (22) is fixedly connected to the surface of the sleeve (5), and a nut (23) is installed on the surface of the screw rod (22).

2. A CNC machine tool spindle lubrication mechanism according to claim 1, characterized in that: One side of the sealing plug (10) is plug-connected to the surface of the injection hole (9), and the other side of the sealing plug (10) is fitted and connected to the outer surface of the storage bin (7).

3. The spindle lubrication mechanism for a CNC machine tool according to claim 1, characterized in that: The diameter of the through hole (11) is the same as the inner diameter of the discharge pipe (12); the discharge pipe (12) is mounted on the surface of the connection groove (8); both sides of the abutment plate (13) are slidably connected to the inner surface of the storage bin (7); and a movable hole is provided on the surface of the storage bin (7).

4. A CNC machine tool spindle lubrication mechanism according to claim 3, characterized in that: The pull rod (14) is connected to the surface of the storage bin (7) through a movable hole, the cross section of the pull rod (14) is "T" shaped, and the size of the partition (15) is larger than the size of the support spring (16).

5. The spindle lubrication mechanism for a CNC machine tool according to claim 1, characterized in that: The partition (15) is abutted against the surface of the limit plate (18), one end of the support spring (16) is fixedly connected to the outer surface of the storage bin (7), the other end of the support spring (16) is fixedly connected to the surface of the partition (15), and the limit plate (18) is rotatably connected to the surface of the connecting rod (17) through the through hole (19).

6. The spindle lubrication mechanism for a CNC machine tool according to claim 1, characterized in that: One end of the scraper rod (20) is movably connected to the surface of the screw rod (22) via a rotating hole (21), and the other end of the scraper rod (20) is abutted against the surface of the main shaft body (6). The size of the rotating hole (21) is larger than the size of the screw rod (22), and two groups of the screw rod (22) are provided.

7. A CNC machine tool spindle lubrication mechanism according to claim 6, characterized in that: Two groups of screw rods (22) are arranged on both sides of the main shaft body (6), one end of the screw rod (22) is fixedly connected to the surface of the sleeve (5), and the other end of the screw rod (22) is connected to the surface of the nut (23) through a thread, and the nut (23) is abutted and connected to the surface of the scraper rod (20), and the size of the nut (23) is larger than the size of the rotating hole (21).

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