CN215257673U

CN215257673U - Flexible nut for high-precision transmission

Info

Publication number: CN215257673U
Application number: CN202121114098.5U
Authority: CN
Inventors: 罗用胜; 刘基国; 散同燕
Original assignee: Hubei Jiangshan Huake Digital Equipment Technology Co ltd
Current assignee: Hubei Jiangshan Huake Digital Equipment Technology Co ltd
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2021-12-21
Anticipated expiration: 2031-05-24

Abstract

The utility model belongs to the lathe field, concretely relates to flexible nut for high-accuracy transmission, the on-line screen storage device comprises a base, the welding has the guide rail on the base, be provided with the slip table on the guide rail, fixed mounting has the floating nut seat on the slip table, the inner chamber has been cup jointed in the floating nut seat, the welding has the shell fragment on the inner chamber, the welding has the bearing frame on the base, fixed mounting has the motor on the bearing frame, fixed mounting has the lead screw on the output of motor, the slip table internal rotation is connected with the lead screw, the lead screw has been cup jointed through the screw thread in the inner chamber, the welding has the frame on the base. The utility model discloses a fixed mounting floating nut seat on the slip table is connected through the shell fragment between floating nut seat and the inner chamber, and then makes and to carry out slight relative eccentric motion between floating nut seat and the inner chamber, and then makes the device can not influence the transmission precision at the nonparallel of certain extent between guide rail and lead screw for the transmission is more accurate.

Description

Flexible nut for high-precision transmission

Technical Field

The utility model relates to the technical field of machine tools, specifically a flexible nut is used in high-accuracy transmission.

Background

For precision machine tools, precision drive of the slide table is always a goal sought by machine tool manufacturers. The screw rod rotates, the nut moves back and forth to push the sliding table to move, and the screw rod nut is connected with the sliding table through the nut seat.

Patent application publication No. CN 108466067A provides a mobilizable digit control machine tool of workstation, the lead screw installation requirement and the guide rail of accurate slip table are parallel, if nonparallel, the lead screw will bending deformation at the in-process of operation, thereby produce the influence to the transmission precision, because the wearing and tearing of guide rail in the use of lathe, also can lead to lead screw and guide rail nonparallel, thereby influence the transmission precision, and simultaneously, the whole weight of device is big, when the short distance removes, it is comparatively troublesome. Accordingly, there is a need for improvements in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high accuracy is flexible nut for transmission has solved lead screw and guide rail nonparallel and has influenced the problem of transmission precision, has still solved the comparatively trouble problem of device short distance removal.

In order to achieve the above object, the utility model provides a following technical scheme: a flexible nut for high-precision transmission comprises a base, wherein a guide rail is welded on the base, a sliding table is arranged on the guide rail, a floating nut seat is fixedly mounted on the sliding table, an inner cavity is sleeved in the floating nut seat in a sliding manner, an elastic sheet is welded on the inner cavity, a bearing seat is welded on the base, a motor is fixedly mounted on the bearing seat, a lead screw is fixedly mounted on the output end of the motor, a lead screw is connected in the sliding table in a rotating manner, the lead screw is sleeved in the inner cavity through threads, a frame is welded on the base, a motor is fixedly mounted on the frame, a rotating shaft is arranged on the motor, the rotating shaft is connected in the frame in a rotating manner, a connecting sleeve is sleeved on the outer side of the rotating shaft in a sliding manner, a threaded rod is welded at the tail end of the connecting sleeve, a threaded rod is connected in the base in a rotating manner, and a connecting plate is connected to the outer side of the threaded rod through threads, the welding of the end of connecting plate has the sloping block, the storage tank has been seted up on the base, sliding connection has the backup pad in the storage tank, the welding has the slider in the backup pad, the welding has the wedge on the slider, be provided with the wheel in the backup pad, be provided with the spring in the storage tank.

Preferably, the sliding table is welded with a guide seat, and the guide seat is connected with a guide rail in a sliding manner.

Preferably, the number of the elastic sheets is four, the four elastic sheets are uniformly distributed on the outer side of the inner cavity, and the elastic sheets are welded with the floating nut seat.

Preferably, the base is welded with a support, and a screw rod is rotatably connected to the support.

Preferably, the side wall of the connecting sleeve is sleeved with a limiting pin in a sliding manner, and the rotating shaft is rotatably connected with the limiting pin.

Preferably, the number of the connecting plates is two, and two inclined blocks are symmetrically welded on each connecting plate.

Preferably, the base is provided with a limiting groove, the inclined block is welded with a sliding rod, and the limiting groove is connected with the sliding rod in a sliding mode.

Preferably, the base is provided with a sliding groove, and the sliding groove is connected with a sliding block in a sliding manner.

Preferably, the wedge block is contacted with the base, and the wedge block is contacted with the inclined block.

Preferably, the spring is in contact with the base and the spring is in contact with the support plate.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a fixed mounting floating nut seat on the slip table is connected through the shell fragment between floating nut seat and the inner chamber, and then makes and to carry out slight relative eccentric motion between floating nut seat and the inner chamber, and then makes the device can not influence the transmission precision at the nonparallel of certain extent between guide rail and lead screw for the transmission is more accurate.

2. The utility model discloses a set up the motor on the frame, the motor drive threaded rod rotates and makes and be the screw motion between connecting plate and the threaded rod, and then makes the sloping block remove, and the sloping block removes and makes the wedge remove, and the wedge drives the backup pad and removes, and then drives the wheel and stretch out from the holding tank for the device can remove, makes the device avoid carrying when carrying out the short distance and remove, and it is more convenient to use.

Drawings

FIG. 1 is a perspective view of the present invention;

fig. 2 is a front cross-sectional view of the present invention in fig. 1;

fig. 3 is a top view of the present invention in fig. 2;

FIG. 4 is a schematic view of the floating nut seat of FIG. 1 in accordance with the present invention;

fig. 5 is an enlarged view of a portion a of fig. 1 according to the present invention.

In the figure: 1. a base; 2. a guide rail; 3. a sliding table; 4. a guide seat; 5. a floating nut seat; 6. an inner cavity; 7. a spring plate; 8. a bearing seat; 9. an electric motor; 10. a screw rod; 11. a support; 13. a frame; 14. a motor; 15. a rotating shaft; 16. connecting sleeves; 17. a spacing pin; 18. a threaded rod; 19. a connecting plate; 20. a sloping block; 21. a slide bar; 22. a limiting groove; 23. a containing groove; 24. a support plate; 25. a slider; 26. a wedge block; 27. a chute; 28. a wheel; 29. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, a flexible nut for high precision transmission includes a base 1, a guide rail 2 welded on the base 1, a sliding table 3 arranged on the guide rail 2, a floating nut seat 5 fixedly mounted on the sliding table 3, an inner cavity 6 slidably sleeved in the floating nut seat 5, an elastic sheet 7 welded on the inner cavity 6, a bearing seat 8 welded on the base 1, a motor 9 fixedly mounted on the bearing seat 8, a lead screw 10 fixedly mounted on an output end of the motor 9, a lead screw 10 rotatably connected in the sliding table 3, a lead screw 10 sleeved in the inner cavity 6 through a thread, a frame 13 welded on the base 1, a motor 14 fixedly mounted on the frame 13, a rotating shaft 15 arranged on the motor 14, a rotating shaft 15 rotatably connected in the frame 13, a connecting sleeve 16 slidably sleeved outside the rotating shaft 15, a threaded rod 18 welded at a tail end of the connecting sleeve 16, a threaded rod 18 rotatably connected in the base 1, the outside of threaded rod 18 has connecting plate 19 through threaded connection, and the welding of the end of connecting plate 19 has sloping block 20, has seted up storage tank 23 on the base 1, and sliding connection has backup pad 24 in storage tank 23, and the welding has slider 25 on the backup pad 24, and the welding has wedge 26 on the slider 25, is provided with wheel 28 on the backup pad 24, is provided with spring 29 in the storage tank 23.

Referring to fig. 1, a guide seat 4 is welded on the sliding table 3, and a guide rail 2 is slidably connected in the guide seat 4. Through the cooperation of guide holder 4 and guide rail 2, lead slip table 3.

Referring to fig. 4, there are four spring plates 7, the four spring plates 7 are uniformly distributed on the outer side of the inner cavity 6, and the spring plates 7 are welded to the floating nut seat 5. By arranging the spring plate 7, the inner cavity 6 can be slightly eccentric in the floating nut seat 5.

Referring to fig. 1, a support 11 is welded on a base 1, and a screw rod 10 is rotatably connected to the support 11. The screw rod 10 is supported by the support 11.

Referring to fig. 5, the side wall of the connecting sleeve 16 is slidably sleeved with a limit pin 17, and the rotating shaft 15 is rotatably connected with the limit pin 17. The connecting sleeve 16 and the rotating shaft 15 are connected by arranging a limit pin 17.

Referring to fig. 3, there are two connecting plates 19, and two inclined blocks 20 are symmetrically welded on each connecting plate 19. The swash blocks 20 are connected by providing a connecting plate 19.

Referring to fig. 2, a limiting groove 22 is formed on the base 1, a sliding rod 21 is welded on the inclined block 20, and the sliding rod 21 is slidably connected in the limiting groove 22. The inclined block 20 is guided by arranging a limit groove 22 to be matched with the slide rod 21.

Referring to fig. 2, the base 1 is provided with a sliding slot 27, and the sliding slot 27 is slidably connected with the sliding block 25. The slide 25 is guided by the slide groove 27.

Referring to fig. 2, wedge 26 is in contact with base 1 and wedge 26 is in contact with ramp 20. The wedge block 26 and the inclined block 20 are arranged to cooperate, so that the wheel 28 can extend out of the base 1.

Referring to fig. 2, the spring 29 is in contact with the base 1, and the spring 29 is in contact with the support plate 24. By providing a spring 29 for assisting the wheel 28 in extending.

The utility model discloses the concrete implementation process as follows: when the sliding table 3 needs to be moved, the motor 9 is started to drive the screw rod 10 to rotate, the screw rod 10 rotates and does threaded motion with the inner cavity 6, the inner cavity 6 is driven to move, the floating nut seat 5 is driven to move by the movement of the inner cavity 6, the sliding table 3 is driven to slide on the guide rail 2 by the floating nut seat 5, the floating nut seat 5 is connected with the inner cavity 6 through the elastic sheet 7, so that slight relative eccentric movement can be performed between the floating nut seat 5 and the inner cavity 6, further, the unparallel of the device between the guide rail 2 and the screw rod 10 in a certain range can not influence the transmission precision, the transmission is more precise, when the whole device needs to be moved, the motor 14 is started, the motor 14 starts the rotating shaft 15 to rotate, the rotating shaft 15 rotates to drive the connecting sleeve 16 to rotate, the connecting sleeve 16 rotates to drive the exposed threaded rod 18 to rotate, the threaded rod 18 rotates to make threaded motion between the connecting plate 19 and the threaded rod 18, and then make connecting plate 19 remove, connecting plate 19 drives sloping block 20 and removes, and sloping block 20 removes and makes wedge 26 remove downwards, and wedge 26 drives slider 25 and removes, and slider 25 drives backup pad 24 and removes, and backup pad 24 drives wheel 28 and stretches out from holding tank 23 for the device can remove, avoids carrying when making the device carry out the short distance and remove, and it is more convenient to use.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high accuracy is flexible nut for transmission, includes base (1), its characterized in that: the welding has guide rail (2) on base (1), be provided with slip table (3) on guide rail (2), fixed mounting has floating nut seat (5) on slip table (3), it has inner chamber (6) to slide to cup joint in floating nut seat (5), the welding has shell fragment (7) on inner chamber (6), the welding has bearing frame (8) on base (1), fixed mounting has motor (9) on bearing frame (8), fixed mounting has lead screw (10) on the output of motor (9), slip table (3) internal rotation is connected with lead screw (10), lead screw (10) has been cup jointed through the screw thread in inner chamber (6), the welding has frame (13) on base (1), fixed mounting has motor (14) on frame (13), be provided with pivot (15) on motor (14), frame (13) internal rotation is connected with pivot (15), adapter sleeve (16) has been cup jointed in the outside slip of pivot (15), the terminal welding of adapter sleeve (16) has threaded rod (18), base (1) internal rotation is connected with threaded rod (18), there are connecting plate (19) in the outside of threaded rod (18) through threaded connection, the terminal welding of connecting plate (19) has sloping block (20), storage tank (23) have been seted up on base (1), sliding connection has backup pad (24) in storage tank (23), the welding has slider (25) in backup pad (24), the welding has wedge (26) on slider (25), be provided with wheel (28) on backup pad (24), be provided with spring (29) in storage tank (23).

2. The flexible nut for high precision transmission according to claim 1, wherein: the sliding table (3) is welded with a guide seat (4), and the guide seat (4) is connected with a guide rail (2) in a sliding mode.

3. The flexible nut for high precision transmission according to claim 1, wherein: the number of the elastic sheets (7) is four, the four elastic sheets (7) are uniformly distributed on the outer side of the inner cavity (6), and the elastic sheets (7) are welded with the floating nut seat (5).

4. The flexible nut for high precision transmission according to claim 1, wherein: the base (1) is welded with a support (11), and a screw rod (10) is rotatably connected to the support (11).

5. The flexible nut for high precision transmission according to claim 1, wherein: the side wall of the connecting sleeve (16) is sleeved with a limiting pin (17) in a sliding mode, and the limiting pin (17) is rotationally connected in the rotating shaft (15).

6. The flexible nut for high precision transmission according to claim 1, wherein: the number of the connecting plates (19) is two, and two inclined blocks (20) are symmetrically welded on each connecting plate (19).

7. The flexible nut for high precision transmission according to claim 1, wherein: the base (1) is provided with a limiting groove (22), the inclined block (20) is welded with a sliding rod (21), and the limiting groove (22) is connected with the sliding rod (21) in a sliding mode.

8. The flexible nut for high precision transmission according to claim 1, wherein: the base (1) is provided with a sliding groove (27), and the sliding groove (27) is connected with a sliding block (25) in a sliding manner.

9. The flexible nut for high precision transmission according to claim 1, wherein: the wedge block (26) is in contact with the base (1), and the wedge block (26) is in contact with the inclined block (20).

10. The flexible nut for high precision transmission according to claim 1, wherein: the spring (29) is in contact with the base (1), and the spring (29) is in contact with the support plate (24).