CN215487485U

CN215487485U - Ball screw for numerically controlled lathe

Info

Publication number: CN215487485U
Application number: CN202120004253.1U
Authority: CN
Inventors: 罗焕; 张国栋
Original assignee: Shenzhen Devic Numerical Control Equipment Co ltd
Current assignee: Shenzhen Devic Numerical Control Equipment Co ltd
Priority date: 2021-01-04
Filing date: 2021-01-04
Publication date: 2022-01-11
Anticipated expiration: 2031-01-04

Abstract

The utility model belongs to the technical field of numerical control lathes, and particularly relates to a ball screw for a numerical control lathe, which comprises a screw rod body, wherein a spiral groove is formed in the outer side of the screw rod body, a plurality of steel balls are connected in the spiral groove in a sliding manner, a support sleeve is sleeved on the outer side of the screw rod body in a sliding manner, a plurality of limiting grooves are formed in the support sleeve, the steel balls are clamped in the limiting grooves, sponge blocks are arranged in the limiting grooves, oil through holes are formed in the support sleeve, an oil storage groove is formed in the support sleeve, and a sealing ring is connected on the support sleeve in a contact manner. According to the utility model, the oil storage groove is arranged in the support sleeve, the sponge block is arranged in the limiting groove, when the device is used, lubricating oil in the oil storage groove permeates into the sponge block of the limiting groove through the oil penetration hole, and the sponge block is contacted with the steel ball, so that the lubricating oil is coated on the surface of the steel ball when the steel ball rolls, the friction resistance is further reduced, the steel ball is not easy to wear, and the service life of the device is prolonged.

Description

Ball screw for numerically controlled lathe

Technical Field

The utility model relates to the technical field of numerically controlled lathes, in particular to a ball screw for a numerically controlled lathe.

Background

The ball screw is an ideal product for converting rotary motion into linear motion or converting linear motion into rotary motion. The ball screw is the most commonly used transmission element on tool machinery and precision machinery, and has the main function of converting rotary motion into linear motion or converting torque into axial repeated acting force, and has the characteristics of high precision, reversibility and high efficiency. Ball screws are widely used in various industrial equipments and precision instruments due to their small frictional resistance.

In the prior art, after the ball screw for the numerical control lathe is used for a long time, abrasion is generated between a ball and the screw, so that the device is damaged, and meanwhile, dust is generated in a groove on the screw after the ball screw is used for a long time, so that the friction resistance is increased. Accordingly, there is a need for improvements in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a ball screw for a numerically controlled lathe, which solves the problem that abrasion is generated between a ball and the screw when the ball screw is used for a long time, and also solves the problem that dust is generated in a groove on the screw when the ball screw is used for a long time, so that the friction resistance is increased.

In order to achieve the purpose, the utility model provides the following technical scheme: a ball screw for a numerical control lathe comprises a screw body, wherein a spiral groove is formed in the outer side of the screw body, a plurality of steel balls are connected in the spiral groove in a sliding way, a supporting sleeve is sleeved on the outer side of the screw rod body in a sliding way, a plurality of limiting grooves are arranged in the supporting sleeve, steel balls are clamped in the limiting grooves, sponge blocks are arranged in the limiting grooves, an oil through hole is arranged in the supporting sleeve, an oil storage tank is arranged in the supporting sleeve, a sealing ring is connected on the supporting sleeve in a contact manner, a spring is arranged in the oil storage tank, a sealing gasket is arranged in the oil storage tank, one end of the sealing gasket, which is far away from the spring, is in contact connection with a supporting sleeve, the screw rod support is characterized in that an oil inlet hole is formed in the support sleeve, a sliding block is welded on the inner side wall of the support sleeve, the sliding block is connected in the spiral groove in a sliding mode, a rubber pad is arranged on the sliding block, and the rubber pad is in contact connection with the screw rod body.

Preferably, one end of the sponge block is bonded on the supporting sleeve, and the other end of the sponge block is in contact connection with the steel ball.

Preferably, the oil penetration hole is communicated with the limiting groove, and the oil penetration hole is communicated with the oil storage groove.

Preferably, the side of sealing washer is provided with the chimb, the chimb has cup jointed in the oil storage tank.

Preferably, one end contact of spring is connected with sealed the pad, the other end contact of spring is connected with the chimb.

Preferably, one end, far away from the spring, of the sealing gasket is provided with a convex block, and the convex block is sleeved in the oil inlet in a sliding mode.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the oil storage groove is arranged in the support sleeve, the sponge block is arranged in the limiting groove, when the device is used, lubricating oil in the oil storage groove permeates into the sponge block of the limiting groove through the oil penetration hole, and the sponge block is contacted with the steel ball, so that the lubricating oil is coated on the surface of the steel ball when the steel ball rolls, the friction resistance is further reduced, the steel ball is not easy to wear, and the service life of the device is prolonged.

2. According to the utility model, the sliding block is arranged in the supporting sleeve, the rubber pad is arranged on the sliding block, and when the supporting sleeve moves relative to the screw rod body, the sliding block slides in the spiral groove to scrape off dust accumulated in the spiral groove, so that the frictional resistance of the device in use is reduced, and the sensitivity of the device is higher.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1 according to the present invention;

FIG. 3 is a left side view of FIG. 1 in accordance with the present invention;

fig. 4 is an enlarged view of the utility model at B in fig. 3.

In the figure: 1. a screw rod body; 2. a helical groove; 3. steel balls; 4. a support sleeve; 5. a limiting groove; 6. a sponge block; 7. an oil penetration hole; 8. an oil storage tank; 9. a seal ring; 10. a convex edge; 11. a spring; 12. a gasket; 13. an oil inlet hole; 14. a bump; 15. a slider; 16. and (7) a rubber pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1-4, a ball screw for a numerically controlled lathe comprises a screw body 1, a spiral groove 2 is formed on the outer side of the screw body 1, a plurality of steel balls 3 are slidably connected in the spiral groove 2, a support sleeve 4 is slidably sleeved on the outer side of the screw body 1, a plurality of limiting grooves 5 are formed in the support sleeve 4, the steel balls 3 are clamped in the limiting grooves 5, a sponge block 6 is arranged in each limiting groove 5, an oil through hole 7 is formed in the support sleeve 4, an oil storage groove 8 is formed in the support sleeve 4, a seal ring 9 is in contact connection with the support sleeve 4, a spring 11 is arranged in each oil storage groove 8, a seal gasket 12 is arranged in each oil storage groove 8, one end, away from the spring 11, of each seal gasket 12 is in contact connection with the support sleeve 4, an oil inlet hole 13 is formed in the support sleeve 4, a slide block 15 is welded on the inner side wall of the support sleeve 4, a slide block 15 is slidably connected with a slide block 15, and a rubber pad 16 is arranged on the slide block 15, the rubber pad 16 is in contact connection with the screw rod body 1.

Referring to fig. 2, one end of the sponge block 6 is adhered to the support sleeve 4, and the other end of the sponge block 6 is connected with the steel ball 3 in a contact manner. The oil outlet speed is controlled by arranging the sponge block 6.

Referring to fig. 2, the oil penetration hole 7 communicates with the stopper groove 5, and the oil penetration hole 7 communicates with the oil reservoir groove 8. Through setting up oil through hole 7 for fluid in the oil storage tank 8 can get into in the spacing groove 5.

Referring to fig. 1, a flange 10 is disposed on a side surface of the sealing ring 9, and the flange 10 is sleeved in the oil storage tank 8. The oil reservoir 8 is closed by the flange 10.

Referring to fig. 2, one end of the spring 11 is connected to the sealing pad 12 in a contacting manner, and the other end of the spring 11 is connected to the flange 10 in a contacting manner. By arranging the spring 11, the sealing gasket 12 and the gian oil inlet 13 are closed.

Referring to fig. 2, a protrusion 14 is disposed at an end of the sealing gasket 12 away from the spring 11, and the protrusion 14 is slidably sleeved in the oil inlet 13. The gasket 12 is guided by the provision of the projection 14.

The specific implementation process of the utility model is as follows: through set up the oil storage tank 8 in supporting cover 4, set up sponge piece 6 in spacing groove 5, when the device uses, lubricating oil in the oil storage tank 8 permeates the sponge piece 6 that gets into spacing groove 5 through oil penetration hole 7 in, through sponge piece 6 and the contact of steel ball 3, when steel ball 3 rolls, paint lubricating oil on the surface of steel ball 3, and then reduce frictional resistance, make steel ball 3 difficult wearing and tearing, improve the life of device, through set up slider 15 in supporting cover 4, set up rubber pad 16 on slider 15, when supporting cover 4 relative lead screw body 1 and remove, slider 15 slides in helicla flute 2, scrape the dust of accumulation in the helicla flute 2, and then reduce the frictional resistance when the device uses, make device sensitivity higher.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a ball screw for numerically controlled lathe, includes lead screw body (1), its characterized in that: the lead screw comprises a lead screw body (1), and is characterized in that a spiral groove (2) is formed in the outer side of the lead screw body (1), a plurality of steel balls (3) are connected in the spiral groove (2) in a sliding manner, a supporting sleeve (4) is sleeved on the outer side of the lead screw body (1) in a sliding manner, a plurality of limiting grooves (5) are formed in the supporting sleeve (4), the steel balls (3) are clamped in the limiting grooves (5), a sponge block (6) is arranged in each limiting groove (5), an oil penetration hole (7) is formed in the supporting sleeve (4), an oil storage groove (8) is formed in the supporting sleeve (4), a sealing ring (9) is connected on the supporting sleeve (4) in a contact manner, a spring (11) is arranged in the oil storage groove (8), a sealing gasket (12) is arranged in the oil storage groove (8), one end, far away from the spring (11), of the sealing gasket (12) is connected with the supporting sleeve (4) in a contact manner, and an oil inlet hole (13) is formed in the supporting sleeve (4), the screw rod is characterized in that a sliding block (15) is welded on the inner side wall of the support sleeve (4), the sliding block (15) is connected in the spiral groove (2) in a sliding mode, a rubber pad (16) is arranged on the sliding block (15), and the rubber pad (16) is in contact connection with the screw rod body (1).

2. The ball screw for a numerically controlled lathe according to claim 1, wherein: one end of the sponge block (6) is adhered to the supporting sleeve (4), and the other end of the sponge block (6) is connected with the steel ball (3) in a contact manner.

3. The ball screw for a numerically controlled lathe according to claim 1, wherein: the oil penetration hole (7) is communicated with the limiting groove (5), and the oil penetration hole (7) is communicated with the oil storage groove (8).

4. The ball screw for a numerically controlled lathe according to claim 1, wherein: the side of sealing washer (9) is provided with chimb (10), chimb (10) have cup jointed in oil storage tank (8).

5. The ball screw for a numerically controlled lathe according to claim 1, wherein: one end contact of spring (11) is connected with sealed pad (12), the other end contact of spring (11) is connected with chimb (10).

6. The ball screw for a numerically controlled lathe according to claim 1, wherein: one end, far away from the spring (11), of the sealing gasket (12) is provided with a convex block (14), and the convex block (14) is sleeved in the oil inlet hole (13) in a sliding mode.