CN216989892U

CN216989892U - Machine tool spindle locking device

Info

Publication number: CN216989892U
Application number: CN202220847109.9U
Authority: CN
Inventors: 曹平志; 王长青; 伍双诚; 吴猛; 伊广智; 王溢尘
Original assignee: Shenzhen Today Standard Precision Machine Co ltd
Current assignee: Shenzhen Today Standard Precision Machine Co ltd
Priority date: 2022-04-13
Filing date: 2022-04-13
Publication date: 2022-07-19
Anticipated expiration: 2032-04-13

Abstract

The utility model discloses a locking device for a machine tool spindle, and relates to the technical field of machine tool spindles. The worm-gear type worm-gear driving mechanism comprises a fixed frame and a mounting seat, wherein a reciprocating motor is mounted on the front surface of the mounting seat and connected with a worm, a shaft sleeve is mounted in the mounting seat, a bidirectional threaded rod is mounted in the shaft sleeve, a worm gear and a movable threaded sleeve are mounted on the peripheral side surface of the bidirectional threaded rod, the movable threaded sleeve is connected with a limiting block, the limiting block is connected with a connecting rod, the connecting rod is connected with a connecting piece, the fixed frame is connected with a sliding rod, and the sliding rod is connected with a fixing ring. According to the utility model, the movable threaded sleeve and the bidirectional threaded rod are arranged, the reciprocating motor enables the bidirectional threaded rod to rotate through the meshing between the worm and the worm wheel, when the bidirectional threaded rod rotates, the movable threaded sleeve moves, the sliding rod is driven to move through the connecting rod, the distance between the two fixing rings can be adjusted, and the movable threaded sleeve and the bidirectional threaded rod can be adjusted and fixed according to the size of the machine tool spindle.

Description

Machine tool spindle locking device

Technical Field

The utility model belongs to the technical field of machine tool spindles, and particularly relates to a locking device for a machine tool spindle.

Background

A machine tool refers to a machine that manufactures a machine. The machine tool plays an important role in the construction of national economy modernization. A lathe is a machine tool for turning a rotating workpiece mainly with a turning tool. The lathe can also be used for corresponding processing by using a drill bit, a reamer, a screw tap, a threading die, a knurling tool and the like. Lathes are used primarily for machining shafts, discs, sleeves and other workpieces having a surface of revolution, and are the most widely used type of machine tool in machine manufacturing and repair plants.

The machine tool is generally provided with a machine tool spindle, the machine tool spindle needs to be locked, and a locking device is needed, but the existing locking device is generally locked manually, time and labor are consumed, efficiency is low, operation is troublesome, and the machine tool spindle locking device is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a locking device for a machine tool spindle, which solves the problems that the conventional locking device generally adopts manual locking, is time-consuming and labor-consuming, low in efficiency and troublesome in operation.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a locking device for a machine tool spindle, which comprises a fixed frame and an installation seat, wherein a reciprocating motor is fixedly installed on the front surface of the installation seat, a motor shaft of the reciprocating motor is fixedly connected with a worm, shaft sleeves are fixedly installed on two side surfaces of the inner wall of the installation seat, a bidirectional threaded rod is installed in each shaft sleeve, a worm wheel and a plurality of movable screw sleeves are installed on the peripheral side surface of each bidirectional threaded rod, and the worm wheel have a locking function by arranging the worm and the worm wheel, so that the loss of the motor shaft can be reduced; the bottom surface of the movable screw sleeve is fixedly connected with a limiting block, the bottom surface of the limiting block is connected with a connecting rod, one end of the connecting rod is connected with a connecting piece, two side surfaces of the inner wall of the fixing frame are provided with notches, a sliding rod is installed in each notch, one end of the sliding rod is fixedly connected with a fixing ring, the movable screw sleeve is in threaded fit with a two-way threaded rod, a machine tool spindle is placed between two protecting sleeves through the threaded fit of the movable screw sleeve and the two-way threaded rod, the two-way threaded rod is rotated through the meshing between a worm and a worm gear by a reciprocating motor, when the two-way threaded rod is rotated, the two movable screw sleeves transversely move, the movable screw sleeve drives the sliding rod to move left and right in the moving process through the connecting rod, the distance between the two fixing rings can be adjusted and fixed according to the size of the machine tool spindle, the flexibility is high, and manual locking is not needed, and the efficiency is high.

The side face of the inner wall of the fixing ring is fixedly provided with a plurality of springs, one end of each spring is fixedly connected with a protective sleeve, and after the machine tool spindle is fixed and completed through the springs and the protective sleeves, the springs and the protective sleeves can protect the machine tool spindle, so that the safety of the machine tool spindle is improved.

The worm is meshed with the worm wheel, and the bidirectional threaded rod is in running fit with the shaft sleeve.

The bottom surface of mount pad is provided with the spacing groove, stopper and spacing groove sliding fit.

The limiting blocks and the connecting pieces are hinged with the connecting rod.

The slide bar is in sliding fit with the mounting seat, and one end of the slide bar is fixedly connected with a limiting plate.

The protecting sleeve is in extrusion fit with the spring.

The utility model has the following beneficial effects:

according to the utility model, the worm and the worm wheel are arranged and have a locking function, so that the loss of a motor shaft can be reduced; the machine tool spindle is placed between the two protective sleeves by arranging the movable threaded sleeves to be in threaded fit with the two-way threaded rod, the reciprocating motor enables the two-way threaded rod to rotate through meshing between the worm and the worm wheel, when the two-way threaded rod rotates, the two movable threaded sleeves move transversely, the movable threaded sleeves drive the sliding rod to move left and right through the connecting rod in the moving process, the distance between the two fixed rings can be adjusted, the movable threaded sleeves can be adjusted and fixed according to the size of the machine tool spindle, the flexibility is high, manual locking is not needed, and the efficiency is high; through setting up spring and lag, with the fixed back of accomplishing of lathe main shaft, spring and lag can protect the lathe main shaft, improve its security.

Of course, it is not necessary for any product in which the utility model is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, 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 perspective view of the present invention;

FIG. 2 is a front left side perspective view of the present invention;

FIG. 3 is a front view of the present invention;

FIG. 4 is a schematic diagram of the right view structure of the present invention;

fig. 5 is a schematic view of the cross-sectional structure a-a of fig. 4.

In the drawings, the components represented by the respective reference numerals are listed below: 1. a fixed mount; 2. a mounting seat; 3. a reciprocating motor; 4. a slide bar; 5. a fixing ring; 6. a spring; 7. a protective sleeve; 8. a limiting block; 9. a connecting rod; 10. a connecting member; 11. a limiting plate; 12. a shaft sleeve; 13. a bidirectional threaded rod; 14. a movable threaded sleeve; 15. a worm; 16. a worm gear; 17. a limiting groove.

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.

In the description of the present invention, it is to be understood that the terms "upper", "middle", "outer", "inner", and the like, indicate orientations or positional relationships, are used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-5, the utility model is a machine tool spindle locking device, including a fixed mount 1 and an installation base 2, a reciprocating motor 3 is fixedly installed on the front surface of the installation base 2, a motor shaft of the reciprocating motor 3 is fixedly connected with a worm 15, shaft sleeves 12 are fixedly installed on both side surfaces of the inner wall of the installation base 2, a bidirectional threaded rod 13 is installed in the shaft sleeve 12, a worm wheel 16 and a plurality of movable screw sleeves 14 are installed on the peripheral side surface of the bidirectional threaded rod 13, and the worm 15 and the worm wheel 16 have a locking function by arranging the worm 15 and the worm wheel 16, so that the loss of the motor shaft can be reduced; the bottom surface of the movable screw sleeve 14 is fixedly connected with a limiting block 8, the bottom surface of the limiting block 8 is connected with a connecting rod 9, one end of the connecting rod 9 is connected with a connecting piece 10, two side surfaces of the inner wall of the fixed frame 1 are respectively provided with a notch, a sliding rod 4 is installed in the notch, one end of the sliding rod 4 is fixedly connected with a fixing ring 5, the movable screw sleeve 14 is in threaded fit with the bidirectional threaded rod 13, a machine tool spindle is placed between the two protective sleeves 7 by arranging the movable screw sleeve 14 in threaded fit with the bidirectional threaded rod 13, the reciprocating motor 3 enables the bidirectional threaded rod 13 to rotate through the meshing between the worm 15 and the worm wheel 16, when the bidirectional threaded rod 13 rotates, the two movable screw sleeves 14 move transversely, the movable screw sleeve 14 drives the sliding rod 4 to move leftwards and rightwards through the connecting rod 9 in the moving process, the distance between the two fixing rings 5 can be adjusted and fixed according to the size of the machine tool spindle, the flexibility is high, and need not manual locking, and is efficient.

Fixed ring 5 inner wall's all sides fixed mounting has a plurality of springs 6, and spring 6's one end fixedly connected with lag 7 through setting up spring 6 and lag 7, with the fixed back of accomplishing of lathe main shaft, spring 6 and lag 7 can protect the lathe main shaft, improve its security.

The limiting block 8 and the connecting piece 10 are hinged to the connecting rod 9, the sliding rod 4 is in sliding fit with the mounting seat 2, and one end of the sliding rod 4 is fixedly connected with the limiting plate 11.

The worm 15 is meshed with the worm wheel 16, and the bidirectional threaded rod 13 is in running fit with the shaft sleeve 12.

The bottom surface of mount pad 2 is provided with spacing groove 17, stopper 8 and spacing groove 17 sliding fit.

The protective sleeve 7 is in press fit with the spring 6.

As shown in fig. 1 to 5, the method for using the spindle locking device of the machine tool of the present invention is as follows: when the machine tool spindle protection device is used, a machine tool spindle is placed between two protection sleeves 7, the reciprocating motor 3 enables the bidirectional threaded rod 13 to rotate through meshing between the worm 15 and the worm wheel 16, when the bidirectional threaded rod 13 rotates, the two movable screw sleeves 14 move transversely, the movable screw sleeves 14 drive the sliding rod 4 to move left and right through the connecting rod 9 in the moving process, the distance between the two fixing rings 5 can be adjusted, the machine tool spindle can be adjusted and fixed according to the size of the machine tool spindle, the spring 6 and the protection sleeves 7 can protect the machine tool spindle, and the model of the reciprocating motor 3 is 5IK-5 GK-10K.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a lathe spindle locking device, includes mount (1) and mount pad (2), its characterized in that: a reciprocating motor (3) is fixedly arranged on the front surface of the mounting seat (2), a motor shaft of the reciprocating motor (3) is fixedly connected with a worm (15), two side surfaces of the inner wall of the mounting seat (2) are fixedly provided with shaft sleeves (12), two-way threaded rods (13) are arranged in the shaft sleeves (12), a worm wheel (16) and a plurality of movable thread sleeves (14) are arranged on the peripheral side surface of the bidirectional threaded rod (13), the bottom surface of the movable threaded sleeve (14) is fixedly connected with a limiting block (8), the bottom surface of the limiting block (8) is connected with a connecting rod (9), one end of the connecting rod (9) is connected with a connecting piece (10), two side surfaces of the inner wall of the fixed frame (1) are provided with notches, install slide bar (4) in the notch, the solid fixed ring of one end fixedly connected with (5) of slide bar (4), activity swivel nut (14) and two-way threaded rod (13) screw-thread fit.

2. A machine tool spindle locking device according to claim 1, characterized in that a plurality of springs (6) are fixedly mounted on the peripheral side of the inner wall of the fixing ring (5), and a protecting sleeve (7) is fixedly connected to one end of each spring (6).

3. A machine tool spindle locking device according to claim 1, characterized in that the worm (15) engages with a worm wheel (16), the two-way threaded rod (13) being in rotational engagement with the sleeve (12).

4. A machine tool spindle locking device according to claim 1, wherein the bottom surface of the mounting seat (2) is provided with a limiting groove (17), and the limiting block (8) is in sliding fit with the limiting groove (17).

5. A machine tool spindle locking device according to claim 1, characterized in that the stop blocks (8) and the connecting pieces (10) are hinged to the connecting rod (9).

6. The locking device for the spindle of the machine tool according to claim 1, wherein the sliding rod (4) is slidably engaged with the mounting base (2), and a limiting plate (11) is fixedly connected to one end of the sliding rod (4).

7. A machine tool spindle locking arrangement according to claim 2, wherein the shield (7) is in press fit with the spring (6).