CN210500102U

CN210500102U - Nut adjusting mechanism for lead screw nut

Info

Publication number: CN210500102U
Application number: CN201921579954.7U
Authority: CN
Inventors: 田桂平; 田义飞
Original assignee: Jinan Jinghao Cnc Machine Tool Manufacturing Co Ltd
Current assignee: Jinan Jinghao Cnc Machine Tool Manufacturing Co Ltd
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-05-12
Anticipated expiration: 2029-09-20

Abstract

The utility model discloses a nut adjustment mechanism for screw nut, including portal frame, fly leaf and lifing arm, through the screw nut drive between fly leaf and the portal frame, the fly leaf passes through the screw connection with the nut, through the screw nut drive between lifing arm and the fly leaf, the position that corresponds with the screw on the lifing arm is equipped with the fastening hole, the lifing arm both sides are equipped with first locating piece, and the fly leaf both sides are equipped with positioning mechanism, and the distribution of positioning mechanism symmetry is both ends about first locating piece, positioning mechanism and the cooperation of first locating piece. After the nut with the horizontal axis is loosened after long-time use, the lifting arm can be moved up and down, so that the fastening hole in the lifting arm corresponds to the screw connected with the movable plate through the nut, the screw can be screwed down, the operation is simple and convenient, the lifting arm does not need to be detached, and the labor cost is reduced.

Description

Nut adjusting mechanism for lead screw nut

Technical Field

The utility model belongs to the technical field of transport mechanism technique and specifically relates to a nut adjustment mechanism for screw nut.

Background

The ball screw pair is a screw transmission element which takes balls as rolling bodies between a screw and a nut, is an advanced transmission element which is precise, high in efficiency, high in rigidity, long in service life, energy-saving and electricity-saving, and can convert the rotary motion of a motor into the linear motion of a workbench, so that the ball screw pair is widely applied to mechanical manufacturing, particularly numerical control machines and machining centers, and provides good conditions for high efficiency and high speed of a host machine.

But in the actual work process, it can produce not hard up to use the nut for a long time, can lead to the transmission precision to reduce after the nut is not hard up, leads to processing failure, and current nut is not hard up the back and need be dismantled the back with the lifing arm and fasten the screw of fixation nut again, wastes time and energy, influences production.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve above-mentioned problem, provide a nut adjustment mechanism for screw nut, the convenience is screwed up the nut, and the practicality is good.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a nut adjustment mechanism for screw nut, includes portal frame, fly leaf and lifing arm, passes through screw nut drive between fly leaf and the portal frame, and fly leaf and nut pass through the screw connection, through screw nut drive between lifing arm and the fly leaf, the position that corresponds with the screw on the lifing arm is equipped with the fastening hole, the lifing arm both sides are equipped with first locating piece, and the fly leaf both sides are equipped with positioning mechanism, and the distribution of positioning mechanism symmetry both ends about first locating piece, positioning mechanism and the cooperation of first locating piece.

Furthermore, the upper end and the lower end of the first positioning block are both provided with an inclined plane.

Further, positioning mechanism includes second locating piece, sleeve, telescopic link and screw rod, and the sleeve is installed on the fly leaf, sliding connection between telescopic link and the sleeve, and the screw rod is equipped with the screw hole in the sleeve internal rotation in the telescopic link, the screw rod left end go deep into threaded hole and with screw hole threaded connection, be equipped with drive screw pivoted actuating mechanism on the sleeve, the second locating piece is installed at the telescopic link left end, second locating piece and first locating piece cooperation.

Furthermore, a connecting plate is arranged between the sleeve and the side face of the movable plate.

Furthermore, a slide way is arranged on the outer cylindrical surface of the telescopic rod, a slide block is arranged on the inner wall of the sleeve, and the slide block is matched with the slide way.

Furthermore, a third positioning block is arranged on the telescopic rod and is in contact with the side face of the sleeve.

Furthermore, a roller is arranged on the second positioning block.

Furthermore, the driving mechanism comprises a driving rod, a first bevel gear and a second bevel gear, a driving sleeve is arranged on the side face of the sleeve, the driving rod extends into the driving sleeve and is in rotating connection with the driving sleeve, the first bevel gear is installed at the end part of the driving sleeve, the second bevel gear is installed on the screw rod, and the first bevel gear is meshed with the second bevel gear.

The utility model has the advantages that:

1. the utility model discloses the position that corresponds with the screw on the well lifing arm is equipped with the fastening hole, leads to the not hard up back of axis horizontally nut when using for a long time, can reciprocate the lifing arm for fastening hole on the lifing arm corresponds with the screw that the nut is connected with the fly leaf, thereby can screw up the screw, and easy operation is convenient, need not dismantle the lifing arm and can accomplish, reduces the cost of labor.

2. The utility model discloses well fly leaf both sides are equipped with positioning mechanism, and both ends about the distribution of positioning mechanism symmetry is at first locating piece, positioning mechanism and the cooperation of first locating piece. The lifting arm can be conveniently located at two upper and lower positions through the cooperation of the locating mechanism and the first locating block, when the first locating block is matched with the upper end locating mechanism, the fastening hole corresponds to the screw at the upper end, and when the first locating block is matched with the lower end locating mechanism, the fastening hole corresponds to the screw at the lower end, so that the fastening screw is convenient, and the practicability is good.

3. The utility model discloses be equipped with the slide on the outer face of cylinder of well telescopic link, be equipped with the slider on the sleeve inner wall, slider and slide cooperation, slider and slide can prevent the telescopic link at the sleeve internal rotation.

4. The utility model discloses be equipped with the third locating piece on the well telescopic link, third locating piece and sleeve side contact prevent that telescopic link and actuating mechanism from producing the interference.

5. The utility model discloses be equipped with the gyro wheel on the well second locating piece, the gyro wheel can reduce the wearing and tearing between second locating piece and the lifing arm.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

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

fig. 2 is a sectional view of the positioning mechanism of the present invention.

In the figure: the gantry comprises a gantry 1, a movable plate 2, a lifting arm 3, a fastening hole 4, a first positioning block 5, an inclined surface 6, a second positioning block 7, a sleeve 8, a telescopic rod 9, a screw rod 10, a threaded hole 11, a connecting plate 12, a slide 13, a slider 14, a third positioning block 15, a roller 16, a driving rod 17, a first bevel gear 18, a second bevel gear 19 and a driving sleeve 20.

Detailed Description

In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below 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, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

As shown in fig. 1 and 2, a nut adjusting mechanism for a screw nut includes a portal frame 1, a movable plate 2 and a lifting arm 3, the movable plate 2 and the portal frame 1 are driven by the screw nut, the movable plate 2 moves left and right, the movable plate 2 is connected with the nut through screws, the nut corresponds to an upper screw and a lower screw, the lifting arm 3 and the movable plate 2 are driven by the screw nut, a fastening hole 4 is formed in a position on the lifting arm 3 corresponding to the screws, first positioning blocks 5 are arranged on two sides of the lifting arm 3, positioning mechanisms are arranged on two sides of the movable plate 2, the four positioning mechanisms are symmetrically distributed at the upper end and the lower end of the first positioning block 5, and the positioning mechanisms are matched with the first positioning blocks 5. The gantry milling machine generally comprises a screw nut with a horizontal axis and a screw nut with a vertical axis, and when the nut with the horizontal axis is loosened after long-time use, the lifting arm 3 can be moved up and down, so that the fastening hole 4 in the lifting arm 3 corresponds to a screw for connecting the nut with the movable plate 2, and the screw can be screwed down; positioning mechanism can conveniently fix a position two positions about the lifing arm 3 with the cooperation of first locating block 5, and when first locating block 5 and upper end positioning mechanism cooperated, fastening hole 4 corresponded the screw of upper end, and when first locating block 5 and lower extreme positioning mechanism cooperated, fastening hole 4 corresponded the screw of lower extreme, made things convenient for fastening screw, and the practicality is good.

As shown in FIG. 1, the first positioning block 5 has inclined planes 6 at both upper and lower ends.

As shown in fig. 1 and 2, the positioning mechanism includes a second positioning block 7, a sleeve 8, a telescopic rod 9 and a screw rod 10, the section of the second positioning block 7 in the vertical direction is right triangle, the sleeve 8 is installed on the movable plate 2, the telescopic rod 9 is slidably connected with the sleeve 8, the screw rod 10 rotates in the sleeve 8, a threaded hole 11 is formed in the telescopic rod 9, the left end of the screw rod 10 extends into the threaded hole 11 and is in threaded connection with the threaded hole 11, a driving mechanism for driving the screw rod 10 to rotate is arranged on the sleeve 8, the second positioning block 7 is installed at the left end of the telescopic rod 9, the second positioning block 7 is matched with the first positioning block 5, when the positioning mechanism is used, the screw rod 10 is driven to rotate by the driving mechanism, the telescopic rod 9 is driven to move left and right, so as to drive the second positioning block 7 to move left and right, when the screw is, when the lifting arm rises until the upper end inclined plane 6 of the first positioning block 5 contacts with the upper end second positioning block 7 inclined plane, the lifting arm does not rise, the fastening hole 4 corresponds to the upper end screw to fasten the upper end screw, when the lifting arm falls until the lower end inclined plane 6 of the first positioning block 5 contacts with the lower end second positioning block 7 inclined plane, the lifting arm does not fall, the fastening hole 4 corresponds to the lower end screw to fasten the lower end screw.

As shown in fig. 1 and 2, a connecting plate 12 is disposed between the sleeve 8 and the side surface of the movable plate 2, an upper end of the connecting plate 12 is connected to the sleeve 8, and a lower end of the connecting plate 12 is connected to the side surface of the movable plate 2.

As shown in fig. 2, a slide 13 is arranged on the outer cylindrical surface of the telescopic rod 9, the axis of the slide 13 is parallel to the axis of the telescopic rod 9, a slide block 14 is arranged on the inner wall of the sleeve 8, the slide block 14 is matched with the slide 13, and the slide block 14 and the slide 13 can prevent the telescopic rod 9 from rotating in the sleeve 8.

As shown in fig. 2, a third positioning block 15 is disposed on the telescopic rod 9, and the third positioning block 15 contacts with a side surface of the sleeve 8 to prevent the telescopic rod 9 from interfering with the driving mechanism.

As shown in fig. 2, the second positioning block 7 is provided with a roller 16, and the roller 16 can reduce the wear between the second positioning block 7 and the lifting arm.

As shown in fig. 2, the driving mechanism includes a driving rod 17, a first bevel gear 18 and a second bevel gear 19, a driving sleeve 20 is arranged on the side surface of the sleeve 8, the driving rod 17 extends into the driving sleeve 20 and is rotatably connected with the driving sleeve 20, the first bevel gear 18 is mounted at the end of the driving sleeve 20, the second bevel gear 19 is mounted on the screw 10, the first bevel gear 18 is meshed with the second bevel gear 19, a limit sleeve is arranged on the driving rod 17, an end cover is arranged at the end of the driving sleeve 20, one end of the limit sleeve is in contact with the first bevel gear 18, the other end of the limit sleeve is in contact with the end cover, and a hand wheel.

In the description of the present invention, it should be noted that the terms "left", "right", "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be mechanically or electrically connected, directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. The utility model provides a nut adjustment mechanism for screw nut, includes portal frame (1), fly leaf (2) and lifing arm (3), through screw nut drive between fly leaf (2) and portal frame (1), fly leaf (2) pass through bolted connection with the nut, through screw nut drive between lifing arm (3) and fly leaf (2), its characterized in that, the position that corresponds with the screw on lifing arm (3) is equipped with fastening hole (4), lifing arm (3) both sides are equipped with first locating piece (5), and fly leaf (2) both sides are equipped with positioning mechanism, and the distribution of positioning mechanism symmetry both ends about first locating piece (5), positioning mechanism and first locating piece (5) cooperation.

2. A nut adjusting mechanism for a lead screw nut as set forth in claim 1, characterized in that the first positioning block (5) is provided with inclined surfaces (6) at both upper and lower ends thereof.

3. The nut adjusting mechanism for the lead screw nut as recited in claim 1, characterized in that the positioning mechanism comprises a second positioning block (7), a sleeve (8), a telescopic rod (9) and a screw rod (10), the sleeve (8) is installed on the movable plate (2), the telescopic rod (9) is slidably connected with the sleeve (8), the screw rod (10) rotates in the sleeve (8), a threaded hole (11) is formed in the telescopic rod (9), the left end of the screw rod (10) extends into the threaded hole (11) and is in threaded connection with the threaded hole (11), a driving mechanism for driving the screw rod (10) to rotate is arranged on the sleeve (8), the second positioning block (7) is installed at the left end of the telescopic rod (9), and the second positioning block (7) is matched with the first positioning block (5).

4. A nut adjustment mechanism for a lead screw nut as claimed in claim 3, characterized in that a connecting plate (12) is provided between the sleeve (8) and the side of the movable plate (2).

5. A nut adjusting mechanism for a lead screw nut according to claim 3, characterized in that a slide way (13) is provided on the outer cylindrical surface of the telescopic rod (9), a slide block (14) is provided on the inner wall of the sleeve (8), and the slide block (14) is engaged with the slide way (13).

6. A nut adjusting mechanism for a lead screw nut as claimed in claim 3, characterized in that the telescopic rod (9) is provided with a third positioning block (15), and the third positioning block (15) is in contact with the side surface of the sleeve (8).

7. A nut adjusting mechanism for a lead screw nut as set forth in claim 3, characterized in that the second positioning block (7) is provided with a roller (16).

8. A nut adjusting mechanism for a lead screw nut according to claim 3, characterized in that the driving mechanism comprises a driving rod (17), a first bevel gear (18) and a second bevel gear (19), the side of the sleeve (8) is provided with a driving sleeve (20), the driving rod (17) extends into the driving sleeve (20) and is rotatably connected with the driving sleeve (20), the first bevel gear (18) is arranged at the end of the driving sleeve (20), the second bevel gear (19) is arranged on the lead screw (10), and the first bevel gear (18) is meshed with the second bevel gear (19).