CN211758564U

CN211758564U - Lathe chuck

Info

Publication number: CN211758564U
Application number: CN202020309021.2U
Authority: CN
Inventors: 刘洪生; 唐宏伟; 罗林
Original assignee: Yaan Fanhua Tooling Mould Co ltd
Current assignee: Yaan Fanhua Tooling Mould Co ltd
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2020-10-27
Anticipated expiration: 2030-03-13

Abstract

The utility model relates to the field of lathe chucks and discloses a lathe chuck, which comprises a chuck main body, wherein a guide rod is fixedly arranged in an inner hole of the chuck main body, and the front end of the guide rod is provided with a sliding sleeve which can slide along the guide rod through a limiting structure; the size of the sliding sleeve is smaller than the diameter of an inner hole of the chuck body when the chuck body is locked; the guide rod is sleeved with an elastic part which can be compressed to store energy when the workpiece pushes the sliding sleeve to move towards the rear end of the guide rod. The utility model provides a current lathe can not conveniently unload the operation to small-size work piece, lead to the problem that lathe machining efficiency is low.

Description

Lathe chuck

Technical Field

The utility model relates to a lathe chuck field specifically indicates a lathe chuck.

Background

A collet, known as a collet or collet, is a fixture used to hold a part to be machined. Its advantage is light in weight, accelerates fast, receives centrifugal force's influence for a short time, and the concentricity is high, can the quick centre gripping part, also can change the chuck fast when changing. While the chuck is capable of machining a range of workpiece sizes less wide than that of a jaw chuck, the advantages it provides in terms of clamping speed, accuracy and productivity are also extremely important for certain machining tasks. Generally, the chuck clamping fixture is more suitable for machining small parts or workpieces with consistent diameter and size.

The existing chuck is generally loaded and unloaded in a manual mode during machining, and when some small parts are machined, the mode of manually operating loading and unloading not only wastes time and energy, but also has low production efficiency. For this reason, technicians have developed a number of automatic feeding devices to achieve automatic feeding of workpieces. But in the aspect of unloading, if will accomplish automatic discharge, then whole material loading discharge apparatus structure is complicated, and is with high costs, does not adopt automatic equipment then the process of unloading needs manual operation, can't realize the automation, leads to production efficiency to hang down excessively.

SUMMERY OF THE UTILITY MODEL

Based on above technical problem, the utility model provides a lathe chuck has solved current lathe and can not conveniently unload the operation to small-size work piece, leads to the problem that lathe machining efficiency is low.

For solving the above technical problem, the utility model discloses a technical scheme as follows:

a lathe chuck comprises a chuck body, wherein a guide rod is fixedly arranged in an inner hole of the chuck body, and a sliding sleeve which can slide along the guide rod is arranged at the front end of the guide rod through a limiting structure; the size of the sliding sleeve is smaller than the diameter of an inner hole of the chuck body when the chuck body is locked; the guide rod is sleeved with an elastic part which can be compressed to store energy when the workpiece pushes the sliding sleeve to move towards the rear end of the guide rod.

The utility model discloses in, when the work piece clamping, the work piece can stretch into in the chuck main part hole to promote the sliding sleeve and remove to the guide bar rear end along the guide bar, the elastic component is compressed the energy storage this moment. Then the chuck main body is clamped to process the workpiece, after the workpiece is processed, the chuck main body is loosened, the elastic piece is restored to push the sliding sleeve to move forwards, so that the workpiece is ejected to fall into a blanking box of a lathe, and the automatic unloading of the small workpiece is completed. Therefore, no matter the lathe adopts automatic feeding or manual feeding, in the unloading link, the lathe chuck can complete the automatic unloading operation of the small workpiece, and the machining efficiency of the lathe is improved.

As a preferred mode, the limiting structure comprises a pin hole arranged at the front part of the guide rod, a limiting pin is fixedly inserted into the pin hole, and two ends of the limiting pin extend into kidney-shaped holes arranged on the sliding sleeve to limit the sliding sleeve.

Preferably, the guide rod is fixed in the inner hole of the joint body by a ring table and a lock nut.

Preferably, the elastic member is a spring, one end of the spring abuts against the annular table, and the other end of the spring abuts against the sliding sleeve.

Preferably, the front end of the sliding sleeve is positioned at the inner side of the opening end of the inner hole of the chuck body and is spaced from the opening end of the inner hole of the chuck body.

Preferably, the front end of the sliding sleeve is provided with a rubber pad for protecting the workpiece.

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

(1) the utility model discloses an add the elastic unloading mechanism in with the lathe chuck to utilize the lathe chuck to accomplish the automatic discharge operation to small-size work piece. The device has simple integral structure and strong reliability, and can effectively improve the processing efficiency of the lathe.

(2) The utility model discloses a limit structure includes the anterior pinhole that establishes of guide bar, and the pinhole internal fixation inserts the spacer pin, and the spacer pin both ends stretch into the sliding sleeve and establish waist shape downthehole spacing to the sliding sleeve. The limiting mechanism is simple and reliable in structure, and can limit the sliding sleeve in the working process of the chuck to prevent the sliding sleeve from sliding off the guide rod.

(3) The utility model discloses a guide bar passes through the loop platform and lock nut fixes in connecting the main part hole, and guide bar installation location is accurate, and forms detachable construction, makes things convenient for the later stage to the maintenance of lathe chuck.

Drawings

Fig. 1 is a first schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of fig. two.

The device comprises a locking nut 1, a ring platform 2, a guide rod 3, a spring 4, a limiting pin 5, a kidney-shaped hole 6, a sliding sleeve 7, a rubber pad 8 and a chuck body 9.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Example 1:

referring to fig. 1-2, a lathe chuck comprises a chuck body 9, a guide rod 3 is fixedly arranged in an inner hole of the chuck body 9, and a sliding sleeve 7 which can slide along the guide rod 3 is arranged at the front end of the guide rod 3 through a limiting structure; the size of the sliding sleeve 7 is smaller than the diameter of an inner hole of the chuck body 9 when the chuck body 9 is locked; the guide rod 3 is sleeved with an elastic part which can be compressed to store energy when the workpiece pushes the sliding sleeve 7 to move towards the rear end of the guide rod 3.

In this embodiment, when the workpiece is clamped, the workpiece may extend into the inner hole of the chuck body 9, so as to push the sliding sleeve 7 to move along the guide rod 3 towards the rear end of the guide rod 3, and at this time, the elastic member is compressed to store energy. Then chuck main part 9 presss from both sides tightly processes the work piece, and after processing was accomplished, chuck main part 9 loosens, and the elastic component restores and promotes sliding sleeve 7 and move forward this moment to push up the work piece and make it fall into lathe workbin down, thereby accomplish the automatic discharge to small-size work piece. Therefore, no matter the lathe adopts automatic feeding or manual feeding, in the unloading link, the lathe chuck can complete the automatic unloading operation of the small workpiece, and the machining efficiency of the lathe is improved.

Furthermore, the limiting structure comprises a pin hole arranged at the front part of the guide rod 3, a limiting pin 5 is fixedly inserted into the pin hole, and two ends of the limiting pin 5 extend into a waist-shaped hole 6 arranged on the sliding sleeve 7 to limit the sliding sleeve 7. The limiting mechanism is simple and reliable in structure, and can limit the sliding sleeve 7 in the working process of the chuck to prevent the sliding sleeve from sliding off the guide rod 3. And the limiting mechanism can limit the sliding distance of the sliding sleeve 7 through the waist-shaped hole 6, so that the workpiece can be loaded and positioned, and the machining accuracy of the workpiece is enhanced.

Further, the guide rod 3 is fixed in the inner hole of the joint main body through the ring table 2 and the locking nut 1, so that the guide rod 3 is accurate in installation and positioning, forms a detachable structure, and is convenient for later maintenance of a lathe chuck.

Furthermore, the elastic element is a spring 4, one end of the spring 4 is propped against the ring platform 2, and the other end is propped against the sliding sleeve 7. The spring 4 is the most common elastic element, and has a simple and reliable structure and is easy to maintain.

Furthermore, the front end of the sliding sleeve 7 is positioned at the inner side of the opening end of the inner hole of the chuck main body 9 and is spaced from the opening end of the inner hole of the chuck main body 9. The space between the sliding sleeve 7 and the chuck main body 9 can form a guide hole structure, so that the loading operation of the workpiece is convenient.

Further, a rubber pad 8 for protecting the workpiece is arranged at the front end of the sliding sleeve 7. The flexible structure of the rubber pad 8 can avoid rigid contact from damaging the workpiece, so that the workpiece can be protected and prevented from being damaged in the feeding process.

The embodiment of the present invention is the above. The above embodiments and the specific parameters in the embodiments are only for the purpose of clearly showing the verification process of the utility model, and are not used to limit the patent protection scope of the utility model, the patent protection scope of the utility model is still subject to the claims, all the equivalent structural changes made by using the contents of the specification and the drawings of the utility model are included in the protection scope of the utility model.

Claims

1. A lathe chuck comprising a chuck body (9), characterized in that: a guide rod (3) is fixedly arranged in an inner hole of the chuck main body (9), and a sliding sleeve (7) capable of sliding along the guide rod (3) is mounted at the front end of the guide rod (3) through a limiting structure; the size of the sliding sleeve (7) is smaller than the diameter of an inner hole of the chuck main body (9) when the chuck main body (9) is locked; the guide rod (3) is sleeved with an elastic piece, and the elastic piece can be compressed to store energy when the workpiece pushes the sliding sleeve (7) to move towards the rear end of the guide rod (3).

2. The lathe chuck as claimed in claim 1, wherein: the limiting structure comprises a pin hole formed in the front of the guide rod (3), a limiting pin (5) is fixedly inserted into the pin hole, and two ends of the limiting pin (5) stretch into a waist-shaped hole (6) formed in the sliding sleeve (7) to limit the sliding sleeve (7).

3. The lathe chuck as claimed in claim 1, wherein: the guide rod (3) is fixed in an inner hole of the joint main body through the ring table (2) and the locking nut (1).

4. A lathe chuck according to claim 3, wherein: the elastic piece is a spring (4), one end of the spring (4) is propped against the annular table (2), and the other end of the spring (4) is propped against the sliding sleeve (7).

5. The lathe chuck as claimed in claim 1, wherein: the front end of the sliding sleeve (7) is positioned at the inner side of the opening end of the inner hole of the chuck main body (9) and is spaced from the opening end of the inner hole of the chuck main body (9).

6. The lathe chuck as claimed in claim 1, wherein: the front end of the sliding sleeve (7) is provided with a rubber pad (8) for protecting a workpiece.