Mould locking ball screw of all-electric system

Abstract

The utility model relates to the technical field of ball screws, in particular to an all-electric system mold locking ball screw which comprises a screw, a nut is connected to the screw in a sliding mode, a spherical threaded cavity is formed between the inner wall of the nut and threads on the outer wall of the screw, balls are connected into the spherical threaded cavity in a rolling mode, and cleaning assemblies are connected to the two ends of the nut in a rotating mode. The cleaning assembly comprises a rotating ring, the rotating ring is rotationally connected to the end of the nut and arranged on the screw in a sleeving mode, the inner wall of the rotating ring is fixedly connected with a driving thread, and the driving thread is in threaded connection with the outer wall of the screw. The screw rotates to drive the ball to roll to enable the nut to move, when the nut moves, the rotating ring is driven to generate displacement and rotate, the cleaning brush is driven to brush the surface of the screw and remove chippings on the surface of the screw, and the cleaning strip blocks and adsorbs fine chippings about to enter threads of the nut, so that the chippings are effectively prevented from entering the nut along with the threads of the screw; and the service life of the screw is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of ball screws, in particular to a fully electric system mold-locking ball screw. Background Art

[0002] Ball screw is another name for ball screw. Ball screw is a transmission mechanical component in which a steel ball moves between the nut and the screw, converting the sliding contact of the traditional screw into rolling contact, and then converting the rotary motion of the steel ball in the nut into linear motion. The fully electric system mold-locking ball screw is electrically driven, and the ball screw drives the mold to displace and lock.

[0003] The existing all-electric system locking ball screw, for example, the ball screw proposed in patent application number "CN202022935114.9", includes structures such as a nut, a screw shaft, a circulation part and a ball. The circulation part and the nut can be firmly fixed together without the need for additional locking parts such as screws, thereby reducing the number of components of the ball screw, thereby improving assembly convenience and reducing overall manufacturing costs.

[0004] However, when the locking ball screw is used in cutting, grinding and other processes, the surface is easily contaminated with fallen debris. The debris enters the nut along the screw thread and easily causes wear to the ball and other structures inside the nut, thereby reducing the service life of the screw. Therefore, a fully electric system locking ball screw is proposed. Utility Model Content

[0005] The utility model aims to provide a fully electric system mold-locking ball screw to solve the problems raised in the above background technology.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A fully electric system mold-locking ball screw, comprising a screw, a nut is slidably connected to the screw, a spherical thread cavity is formed between the inner wall of the nut and the thread of the outer wall of the screw, a ball is rollingly connected in the spherical thread cavity, and cleaning components are rotatably connected at both ends of the nut;

[0008] The cleaning assembly includes a rotating ring, which is rotatably connected to the end of a nut and is sleeved on the screw. A driving thread is fixedly connected to the inner wall of the rotating ring, and the driving thread is threadedly connected to the outer wall of the screw. A cleaning strip is clamped on the end of the inner wall of the rotating ring away from the nut, and the cleaning strip fits the surface of the screw. A cleaning brush is fixedly connected to the end of the rotating ring away from the nut, and the end of the cleaning brush contacts the surface of the screw.

[0009] Preferably, the cleaning strip is shaped as a ring, and the center of the cleaning strip is aligned with the center of the screw, and the cleaning brush is shaped as a ring, and the cleaning brush is sleeved on the screw.

[0010] Preferably, one end of the two groups of rotating rings close to the nut is fixedly connected with a connecting ring, and the two groups of connecting rings are rotatably connected to the two ends of the nut respectively.

[0011] Preferably, the nut is externally sleeved with a fixing ring, an oil storage cavity is provided in the fixing ring, an oil filling port is provided on the side wall of the nut, one end of the oil filling port is connected with the oil storage cavity, and a head is clamped on the other end, an oil outlet pipe is provided on one side of the oil storage cavity, and the end of the oil outlet pipe is connected with the spherical thread cavity.

[0012] Preferably, a fixing plate is slidably connected to the inside of one end of the oil outlet pipe close to the spherical thread cavity, an oiling block is fixedly connected to one side of the fixing plate close to the spherical thread cavity, and a connecting rod is fixedly connected to the other side, the oiling block is squeezed into fit with the ball, the connecting rod is plugged into the inner wall of the oil outlet pipe, and a spring is sleeved on the side wall of the connecting rod, one end of the spring is fixedly connected to the fixing plate, and the other end is fixedly connected to the inner wall of the oil outlet pipe.

[0013] Preferably, both ends of the screw rod are sleeved with fixing seats for supporting the screw rod, and the lower ends of the two sets of fixing seats are fixedly connected with mounting seats.

[0014] Beneficial effects of the utility model:

[0015] The utility model drives the ball to roll by the rotation of the screw to move the nut. When the nut moves, it will drive the rotating ring to be displaced. The rotating ring is connected to the screw thread and will rotate with the movement, driving the cleaning brush to scrub the surface of the screw to remove debris on the surface of the screw. The cleaning strip will block and absorb small debris that is about to enter the thread of the nut, effectively preventing the debris from entering the nut along the thread of the screw, thereby increasing the service life of the screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the mold-locking ball screw of the utility model;

[0019] Figure 3 This is a schematic diagram of the nut structure of the utility model;

[0020] Figure 4 yes Figure 2 A schematic diagram of the structure at A;

[0021] The reference numerals in the figures are as follows:

[0022] 1. Screw; 2. Moving block; 3. Fixed seat; 5. Oil filling port; 6. Head; 7. Oil storage chamber; 8. Oil outlet pipe; 9. Spherical thread chamber; 11. Oiling block; 12. Fixed plate; 13. Connecting rod; 14. Spring; 15. Rotating ring; 16. Connecting ring; 17. Cleaning strip; 18. Cleaning brush; 19. Driving thread; 20. Mounting seat; 21. Fixed ring. DETAILED DESCRIPTION

[0023] 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 of 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.

[0024] A fully electric system mold locking ball screw, such as Figure 1-Figure 4 As shown, it includes a screw 1, on which a nut is slidably connected, a spherical thread cavity 9 is formed between the inner wall of the nut and the outer wall thread of the screw 1, a ball is rollingly connected in the spherical thread cavity 9, and cleaning components are rotatably connected at both ends of the nut, and the ball is adapted to the size of the spherical thread cavity 9.

[0025] The cleaning assembly includes a rotating ring 15, which is rotatably connected to the end of a nut and is sleeved on the screw 1. A driving thread 19 is fixedly connected to the inner wall of the rotating ring 15, and the driving thread 19 is threadedly connected to the outer wall of the screw 1. A cleaning strip 17 is clamped on the end of the inner wall of the rotating ring 15 away from the nut, and the cleaning strip 17 is in contact with the surface of the screw 1. A cleaning brush 18 is fixedly connected to the end of the rotating ring 15 away from the nut, and the end of the cleaning brush 18 is in contact with the surface of the screw 1.

[0026] The ball bearings are driven to roll by rotating the screw 1 to move the nut. When the nut moves, the rotating ring 15 is displaced. Since the rotating ring 15 is threadedly connected to the screw 1, the rotating ring 15 rotates as it moves, driving the cleaning brush 18 to brush the surface of the screw 1 to remove debris on the surface of the screw 1. The small debris not removed by the cleaning brush 18 remains on the surface of the screw 1. The cleaning strip 17 (which can be made of a sponge or other material) blocks and absorbs the small debris that is about to enter the thread of the nut, effectively preventing the debris from entering the nut along the thread of the screw 1, thereby increasing the service life of the screw 1.

[0027] The cleaning strip 17 is configured to be annular in shape, and the center of the cleaning strip 17 is aligned with the center of the screw 1 ; the cleaning brush 18 is configured to be annular in shape, and the cleaning brush 18 is sleeved on the screw 1 .

[0028] like Figure 2As shown, the cleaning strip 17 is sleeved on the screw rod 1 to clean the screw rod 1 comprehensively, and the cleaning brush 18 is sleeved on the screw rod 1 in an annular shape to remove debris on the surface of the screw rod 1 .

[0029] The two groups of rotating rings 15 are fixedly connected with a connecting ring 16 at one end close to the nut, and the two groups of connecting rings 16 are rotatably connected to the two ends of the nut respectively.

[0030] like Figure 2 As shown, the rotating ring 15 is rotatably connected to the nut by means of the connecting ring 16, which will not affect the driving of the nut.

[0031] A fixing ring 21 is fixedly mounted on the outside of the nut, an oil storage chamber 7 is provided in the fixing ring 21, an oil filling port 5 is provided on the side wall of the nut, one end of the oil filling port 5 is connected to the oil storage chamber 7, and a head 6 is clamped on the other end, an oil outlet pipe 8 is provided on one side of the oil storage chamber 7, and the end of the oil outlet pipe 8 is connected to the spherical thread chamber 9.

[0032] like Figure 1-Figure 4 As shown, the fixing ring 21 increases the space of the oil storage chamber 7, and a proper amount of lubricating oil is injected into the oil storage chamber 7 through the oil filling port 5. The oil flows into the spherical thread chamber 9 through the oil storage chamber 7 and the oil outlet pipe 8, so that the internal balls are contaminated with oil, which increases the smoothness of the ball movement and improves the service life of the screw 1. The head 6 prevents impurities from entering the oil filling port 5.

[0033] A fixing plate 12 is slidably connected to the inside of one end of the oil outlet pipe 8 close to the spherical thread cavity 9, an oiling block 11 is fixedly connected to one side of the fixing plate 12 close to the spherical thread cavity 9, and a connecting rod 13 is fixedly connected to the other side, the oiling block 11 is squeezed with the ball, the connecting rod 13 is plugged into the inner wall of the oil outlet pipe 8, and a spring 14 is sleeved on the side wall of the connecting rod 13, one end of the spring 14 is fixedly connected to the fixing plate 12, and the other end is fixedly connected to the inner wall of the oil outlet pipe 8.

[0034] like Figure 1-Figure 4 As shown, in order to reduce the speed of oil loss through the oil outlet pipe 8 while ensuring the lubrication effect, a fixed plate 12, an oiling block 11, a spring 14, and a connecting rod 13 are set up in the oil outlet pipe 8, and the oil is immersed in the oiling block 11. When the ball moves to the side of the oiling block 11, it will squeeze the oiling block 11, and the oiling block 11 will apply the oil to the ball to reduce the oil loss speed. The oiling block 11 drives the spring 14 to be compressed as the ball is squeezed, thereby increasing the elasticity of the oil, preventing the oiling block 11 from detaching and preventing the oiling block 11 from affecting the operation of the ball.

[0035] Both ends of the screw rod 1 are sleeved with fixing seats 3 for supporting the screw rod 1 , and the lower ends of the two sets of fixing seats 3 are fixedly connected with mounting seats 20 .

[0036] like Figure 1 As shown, the locking ball screw 1 of the all-electric system is installed via the fixing seat 3 and the mounting seat 20, and the installation is simple and convenient.

[0037] The working principle of the fully electric system mold locking ball screw provided by the utility model is as follows:

[0038] The screw 1 is rotated to drive the ball to roll and move the nut. When the nut moves, it will drive the rotating ring 15 to be displaced. Since the rotating ring 15 is threadedly connected to the screw 1 through the connecting ring 16, the rotating ring 15 will rotate as it moves, driving the cleaning brush 18 to brush the surface of the screw 1 to remove the debris on the surface of the screw 1. The small debris not removed by the cleaning brush 18 is still on the surface of the screw 1. The cleaning strip 17 blocks and absorbs the small debris that is about to enter the thread of the nut, effectively preventing the debris from entering the nut along the thread of the screw 1, thereby increasing the service life of the screw 1. A fixed plate 12, an oiling block 11, a spring 14, and a connecting rod 13 are set on the oil outlet pipe 8, and oil is immersed in the oiling block 11. When the ball moves to one side of the oiling block 11, it will squeeze the oiling block 11, and the oiling block 11 will apply oil to the ball.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A fully electric system mold-locking ball screw, comprising a screw (1), characterized in that: A nut is slidably connected to the screw rod (1), a spherical thread cavity (9) is formed between the inner wall of the nut and the outer wall of the screw rod (1), a ball is rollingly connected in the spherical thread cavity (9), and cleaning components are rotatably connected to both ends of the nut; The cleaning assembly comprises a rotating ring (15), the rotating ring (15) is rotatably connected to the end of a nut, and the rotating ring (15) is sleeved on the screw (1), a driving thread (19) is fixedly connected to the inner wall of the rotating ring (15), and the driving thread (19) is threadedly connected to the outer wall of the screw (1), a cleaning strip (17) is clamped on one end of the inner wall of the rotating ring (15) away from the nut, and the cleaning strip (17) is in contact with the surface of the screw (1), and a cleaning brush (18) is fixedly connected to one end of the rotating ring (15) away from the nut, and the end of the cleaning brush (18) is in contact with the surface of the screw (1).

2. The all-electric system mold-locking ball screw according to claim 1, characterized in that: The cleaning strip (17) is configured to be annular in shape, and the center of the cleaning strip (17) is aligned with the center of the screw (1); the cleaning brush (18) is configured to be annular in shape, and the cleaning brush (18) is sleeved on the screw (1).

3. The all-electric system mold-locking ball screw according to claim 1, characterized in that: One end of the two groups of rotating rings (15) close to the nut is fixedly connected with a connecting ring (16), and the two groups of connecting rings (16) are respectively rotatably connected to the two ends of the nut.

4. The all-electric system mold-locking ball screw according to claim 1, characterized in that: The nut is externally sleeved with a fixed ring (21), an oil storage chamber (7) is provided in the fixed ring (21), an oil filling port (5) is provided on the side wall of the nut, one end of the oil filling port (5) is connected to the oil storage chamber (7), and the other end is clamped with a sealing head (6), an oil outlet pipe (8) is provided on one side of the oil storage chamber (7), and the end of the oil outlet pipe (8) is connected to the spherical thread chamber (9).

5. The all-electric system mold-locking ball screw according to claim 4, characterized in that: A fixing plate (12) is slidably connected to the inside of one end of the oil outlet pipe (8) close to the spherical thread cavity (9); an oiling block (11) is fixedly connected to one side of the fixing plate (12) close to the spherical thread cavity (9); and a connecting rod (13) is fixedly connected to the other side; the oiling block (11) is extruded and matched with a ball; the connecting rod (13) is plugged into the inner wall of the oil outlet pipe (8); and a spring (14) is sleeved on the side wall of the connecting rod (13); one end of the spring (14) is fixedly connected to the fixing plate (12) and the other end is fixedly connected to the inner wall of the oil outlet pipe (8).

6. The all-electric system mold-locking ball screw according to claim 1, characterized in that: Both ends of the screw rod (1) are sleeved with fixing seats (3) for supporting the screw rod (1), and the lower ends of the two sets of fixing seats (3) are fixedly connected with mounting seats (20).

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