CN114042948B

CN114042948B - Lathe chuck capable of automatically stretching and retracting

Info

Publication number: CN114042948B
Application number: CN202111529567.4A
Authority: CN
Inventors: 刘宜胜; 姚程翔; 王伟东; 林洪兵
Original assignee: Zhejiang Sci Tech University ZSTU
Current assignee: Zhejiang Sci Tech University ZSTU
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-12-13
Anticipated expiration: 2041-12-14
Also published as: CN114042948A

Abstract

The invention discloses an automatic telescopic lathe chuck, which comprises a spindle connecting sleeve connected with a lathe spindle, wherein the right end of the spindle connecting sleeve is fixedly connected with a fixing sleeve, the right side of the fixing sleeve is fixedly connected with an oblique opening cylinder, a chuck is arranged in the oblique opening cylinder, a chuck seat is sleeved at the right end of the chuck, a sleeve sleeved outside the oblique opening cylinder is in threaded connection with the left side of the chuck seat, a chuck inner cavity is arranged in the chuck, a push rod is arranged in the chuck inner cavity, compared with the manual part taking of a traditional numerical control lathe, the automatic discharging function is increased, the automation of taking parts at the chuck can be effectively realized, the labor intensity of workers is reduced, the processing time is saved, and the integrated blanking from the part placed at the chuck to the part after the part is processed is realized.

Description

Lathe chuck capable of automatically stretching and retracting

Technical Field

The invention relates to the technical field of numerical control machinery, in particular to a lathe chuck capable of automatically stretching.

Background

The numerically controlled lathe is one of the widely used numerically controlled machines at present. The cutting machine is mainly used for cutting processing of inner and outer cylindrical surfaces of shaft parts or disc parts, inner and outer conical surfaces with any cone angle, inner and outer curved surfaces of complex rotation, cylindrical threads, conical threads and the like, and can perform grooving, drilling, reaming, boring and the like.

In the process of machining a machined part, the numerical control milling machine needs to use the auxiliary clamping tool of the chuck to clamp the milling drill, so that the possibility that the milling drill is thrown out in the rotating process is avoided. But current general numerically controlled fraise machine can not produce great noise for the drill bit shock attenuation during the use, and can not convenient change drill bit to the drill bit is fixed firm inadequately. After the lathe mills, the probability that the workpiece falls off is considered when the chuck auxiliary clamping tool is loosened.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides the lathe chuck capable of automatically stretching, which can effectively realize the automation of taking parts at the lathe chuck, reduce the labor intensity of workers, save the processing time and realize the integration of blanking from the part placed at the chuck to be processed to the part after the processing is finished.

Technical scheme

The utility model provides a lathe chuck that can stretch out and draw back automatically, includes the main shaft adapter sleeve of being connected with the lathe spindle, the fixed cover of right-hand member fixedly connected with of main shaft adapter sleeve, the right side fixedly connected with bevel connection drum of fixed cover, the internally mounted of bevel connection drum has the chuck, the right-hand member cover of chuck is equipped with the chuck seat, the left side threaded connection of chuck seat have suit in the sleeve in the bevel connection drum outside, the inside of chuck is provided with the chuck inner chamber, the intracavity of chuck is provided with the push rod, the left end of push rod stretches into the main shaft adapter sleeve, it runs through to slide on the push rod has and is located the butt disc of chuck inner chamber, the butt disc pass through dead lever fixed connection in the inner wall of chuck inner chamber, the left side fixedly connected with quilt of butt disc the spring that the push rod passed, the left end of spring be connected with fixed connection in the spring circle of push rod, the outside fixedly connected with sliding connection of spring circle in the slip cap of fixed cover.

Furthermore, the right-hand member of chuck is the clamp splice of three annular array, chuck with the left side part that the clamp splice is connected has elasticity, thereby makes threely the clamp splice can be realized pressing from both sides tightly and relax the action.

Furthermore, the right end of the push rod is fixedly connected with an ejector rod used for ejecting the workpiece.

Furthermore, a pen-shaped air cylinder is fixedly arranged at the left end inside the spindle connecting sleeve.

Furthermore, the right output end of the pen-shaped air cylinder is fixedly connected with the left end of the push rod.

Furthermore, the left end of the sleeve is connected with a base through a bolt.

Advantageous effects

Compared with the prior art, the invention has the following beneficial effects:

1. compared with the traditional numerical control lathe for manually taking parts, the automatic discharging function is added, the automation of taking parts at the chuck of the lathe can be effectively realized, the labor intensity of workers is reduced, the processing time is saved, and the integration of blanking from the part placed at the chuck to be processed to the part after the processing is finished is realized;

2. the structure is simple, when a lathe tool is milled and rotated, the part can vibrate at the chuck, and the spring can play a good role in buffering through elastic expansion, so that the damage of rigid extrusion to the mechanism part is reduced;

3. the chuck can carry out the adjustment of size, can process the part in certain diameter range through changing, and the fixed actuating mechanism in the main shaft connecting sleeve simultaneously is the form of a stroke or a combination of strokes cylinder, and its simple structure, low in manufacturing cost easily maintains.

Drawings

FIG. 1 is a schematic view of the overall structure of an automatically retractable lathe chuck according to the present invention;

FIG. 2 is a cross-sectional view of the present invention;

figure 3 is a detail view of the collet chuck.

In the figure: 1. a main shaft connecting sleeve; 2. fixing a sleeve; 3. a base; 4. a sleeve; 5. abutting against the disc; 6. a top rod; 7. a chuck base; 8. a push rod; 9. a spring round sleeve; 10. a sliding sleeve; 11. a spring; 12. a fixing rod; 13. an inner cavity of the chuck; 14. a collet chuck; 15. a beveled cylinder.

Detailed Description

For a better illustration of the invention, reference is made to the following description, taken in conjunction with the accompanying drawings and examples:

as shown in fig. 1-3, the invention discloses an automatically telescopic lathe chuck, which comprises a spindle connecting sleeve 1 connected with a lathe spindle, wherein a fixing sleeve 2 is fixedly connected to the right end of the spindle connecting sleeve 1, an oblique-mouth cylinder 15 is fixedly connected to the right side of the fixing sleeve 2, a chuck 14 is installed inside the oblique-mouth cylinder 15, a chuck base 7 is sleeved on the right end of the chuck 14, a sleeve 4 sleeved outside the oblique-mouth cylinder 15 is connected to the left side of the chuck base 7 in a threaded manner, a chuck inner cavity 13 is arranged inside the chuck 14, a push rod 8 is arranged in the chuck inner cavity 13, the left end of the push rod 8 extends into the spindle connecting sleeve 1, a butting disc 5 positioned in the chuck inner cavity 13 is slidably penetrated on the push rod 8, the butting disc 5 is fixedly connected to the inner wall of the chuck inner cavity 13 through a fixing rod, a spring 11 penetrated by the push rod 8 is fixedly connected to the left side of the butting disc 5, a spring circular sleeve 9 fixedly connected to the push rod 8 is connected to the left end of the spring 11, and the spring circular sleeve 9 is fixedly connected to the outer side of the sliding sleeve 10 of the fixing sleeve 2.

Further, the right end of the collet chuck 14 is provided with three clamping blocks (not shown) in an annular array, and the left side part of the collet chuck 14 connected with the clamping blocks is provided with elasticity, so that the three clamping blocks can realize clamping and loosening actions.

Furthermore, the right end of the push rod 8 is fixedly connected with an ejector rod 6 for ejecting the workpiece.

Further, a pen-shaped air cylinder (not shown) is fixedly arranged at the left end of the inner part of the spindle connecting sleeve 1.

Further, the right output end of the pen-shaped air cylinder is fixedly connected to the left end of the push rod 8.

Further, the left end of the sleeve 4 is connected with a base 3 through a bolt.

Specifically, when clamping is needed, the pen-shaped air cylinder is started, the pen-shaped air cylinder drives the push rod 8 to move left, the spring round sleeve 9 and the sliding sleeve 10 move left and stretch the spring 11, and the abutting disc 5 is fixedly connected with the right end of the spring 11, so that the abutting disc 5 moves left under the action of the elastic force of the spring 11, the chuck 14 is driven to move left through the fixed rod 12, and the three clamping blocks of the chuck 14 are gathered together under the action of the right end inclined plane of the bevel opening cylinder 15, so that the clamping effect is realized;

when the clamping device needs to be loosened, the push rod 8 moves rightwards through the pen-shaped air cylinder, the spring round sleeve 9 and the sliding sleeve 10 move rightwards and push the spring 11 towards the right side, the right end of the spring 11 is fixed on the abutting disc 5, therefore, the spring 11 is compressed and pushes the abutting disc 5 towards the right side, and the chuck 14 moves rightwards through the fixed rod 12, at the moment, the right end of the bevel opening cylinder 15 does not limit the three clamping blocks any more, therefore, the three clamping blocks can be far away from each other under the elastic action of the chuck 14, and the loosening effect is achieved;

meanwhile, along with the continuous right movement of the push rod 8, the three clamping blocks are expanded to the maximum under the limitation of the clamping head seat 7, and at the moment, the push rod 6 can continuously move to the right under the pushing of the push rod 8, so that the push rod 6 can push out the machined workpiece to the right side, and automatic discharging is realized.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the technical solutions of the present invention have been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions described in the foregoing embodiments may be modified or some technical features may be equally replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a but lathe chuck of automatic flexible which characterized in that: comprises a main shaft connecting sleeve (1) connected with a lathe main shaft, a fixing sleeve (2) is fixedly connected with the right end of the main shaft connecting sleeve (1), the right side of the fixed sleeve (2) is fixedly connected with an inclined opening cylinder (15), a chuck (14) is arranged in the bevel opening cylinder (15), a chuck seat (7) is sleeved at the right end of the chuck (14), a sleeve (4) sleeved outside the bevel opening cylinder (15) is connected with the left side of the chuck seat (7) in a threaded manner, a chuck inner cavity (13) is arranged in the chuck (14), a push rod (8) is arranged in the inner cavity (13) of the chuck, the left end of the push rod (8) extends into the spindle connecting sleeve (1), an abutting disc (5) positioned in the inner cavity (13) of the chuck is slidably penetrated on the push rod (8), the abutting disc (5) is fixedly connected with the inner wall of the inner cavity (13) of the chuck through a fixing rod, the left side of the abutting disc (5) is fixedly connected with a spring (11) penetrated by the push rod (8), the left end of the spring (11) is connected with a spring round sleeve (9) fixedly connected with the push rod (8), the outer side of the spring round sleeve (9) is fixedly connected with a sliding sleeve (10) which is connected with the fixed sleeve (2) in a sliding manner; the right end of the chuck (14) is provided with three clamping blocks in annular array, and the left part of the chuck (14) connected with the clamping blocks is elastic, so that the three clamping blocks can realize clamping and loosening actions; the right end of the push rod (8) is fixedly connected with an ejector rod (6) used for ejecting a workpiece; a pen-shaped air cylinder is fixedly arranged at the left end inside the main shaft connecting sleeve (1); the right output end of the pen-shaped air cylinder is fixedly connected with the left end of the push rod (8); the left end of the sleeve (4) is connected with a base (3) through a bolt.