CN212551792U

CN212551792U - Lathe chuck structure

Info

Publication number: CN212551792U
Application number: CN202020926792.6U
Authority: CN
Inventors: 姜生达
Original assignee: Dalian Hengrui Precision Machinery Co ltd
Current assignee: Dalian Hengrui Precision Machinery Co ltd
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2021-02-19
Anticipated expiration: 2030-05-28

Abstract

The utility model discloses a lathe chuck structure, concretely relates to lathe field, including the lathe body, the inside fixed mounting of lathe body has lathe main shaft pull rod, the output screw thread joint of lathe main shaft pull rod has the stock, one side fixed mounting of lathe body has three-jaw chuck, one side that the lathe body was kept away from to three-jaw chuck can be dismantled and be connected with the connection pad. In the specific use process of the utility model, the first claw and the second claw are fixedly connected with one side of the three-claw chuck through the connecting disc, so that the clamping of a small square workpiece is facilitated, and the three-claw chuck is matched with the idle claw, so that the chuck can be adapted to products with more sizes, and the practicability of the device is improved; through setting up stock and lathe main shaft pull rod threaded connection, and the other end and the two claw chucks of hydraulic pressure cavity of stock are connected to drive opening and shutting of first jack catch and second jack catch and press from both sides tightly the work piece, the simple operation, the practicality is stronger.

Description

Lathe chuck structure

Technical Field

The utility model relates to a lathe technical field, more specifically say, the utility model relates to a lathe chuck structure.

Background

Chucks are mechanical devices used to clamp workpieces on machine tools. The chuck is generally composed of a chuck body, a movable jaw and a jaw driving mechanism, and the chuck in the prior art is generally divided into a three-jaw chuck, a two-jaw chuck and a four-jaw chuck.

However, in the prior art, the use of the chuck still has some defects, and as the chucks with different sizes cannot be communicated with each other, and along with the increasing advance of the machine tool technology, some new products are square and have undersized sizes, the original three-jaw chuck form cannot clamp, the clamping mode can only use a two-jaw chuck, and the existing chuck is too large and the clamping mode cannot meet the processing requirements of the existing workpiece.

Accordingly, there is a need to provide a new chuck structure for machine tools.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a lathe chuck structure, through the first jack catch of connection pad fixedly connected with and second jack catch in one side at the three-jaw chuck, thereby made things convenient for the clamp to small-size square workpiece tightly, and cooperate the idle claw of three-jaw chuck, make the chuck can the product of the more sizes of adaptation, through setting up stock and lathe main shaft pull rod threaded connection, and the other end and the hydraulic pressure cavity two-jaw chuck of stock are connected, thereby drive opening and shutting of first jack catch and second jack catch and press from both sides tightly the work piece, and convenient for operation, in order to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a lathe chuck structure, includes the lathe body, the inside fixed mounting of lathe body has lathe main shaft pull rod, the output screw thread joint of lathe main shaft pull rod has the stock, one side fixed mounting of lathe body has the three-jaw chuck, one side that the lathe body was kept away from to the three-jaw chuck can be dismantled and is connected with the connection pad, one side fixed mounting that the three-jaw chuck was kept away from to the connection pad has hydraulic pressure cavity two-jaw chuck, one side joint that the connection pad was kept away from to hydraulic pressure cavity two-jaw chuck has first jack catch and second jack catch, the second jack catch is located directly over first jack catch.

In a preferred embodiment, one end of the long rod, which is far away from the machine tool spindle pull rod, penetrates through the three-jaw chuck and is fixedly connected with the hydraulic hollow two-jaw chuck.

In a preferred embodiment, the outer surface of the connecting disc is clamped with a fixing bolt, and the fixing bolt penetrates through the connecting disc and is fixedly connected with the three-jaw chuck.

In a preferred embodiment, the outer surface of the three-jaw chuck is fixedly mounted with the three-jaw chuck idle jaw on the side of the second jaw.

In a preferred embodiment, two knock pins are fixedly mounted on the top of the second jaw.

In a preferred embodiment, a support pin is fixedly mounted on an outer surface of the first jaw, and the support pin is fixedly connected to the inside of the hydraulic hollow two-jaw chuck through the first jaw.

The utility model discloses a technological effect and advantage:

1. in the specific use process of the utility model, the first claw and the second claw are fixedly connected with one side of the three-claw chuck through the connecting disc, so that the clamping of a small square workpiece is facilitated, and the three-claw chuck is matched with the idle claw, so that the chuck can be adapted to products with more sizes, and the practicability of the device is improved;

2. the utility model discloses in concrete use, through setting up stock and lathe main shaft pull rod threaded connection, and the other end and the hydraulic pressure cavity two-jaw chuck of stock are connected to opening and shutting that drives first jack catch and second jack catch presss from both sides tightly the work piece, the simple operation, the practicality is stronger.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a side view of the present invention of fig. 1.

Fig. 3 is a schematic view of a second jaw structure of the present invention.

Fig. 4 is a schematic view of the first jaw structure of the present invention.

The reference signs are: 1. a machine tool body; 2. a machine tool spindle pull rod; 3. a long rod; 4. a three-jaw chuck; 5. fixing the bolt; 6. a connecting disc; 7. a hydraulic hollow two-jaw chuck; 8. a first jaw; 9. a second jaw; 10. the three-jaw chuck has idle jaws; 11. a knock pin; 12. and (7) supporting the pin.

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.

1-4, including lathe body 1, the inside fixed mounting of lathe body 1 has lathe main shaft pull rod 2, the output end screw thread joint of lathe main shaft pull rod 2 has stock 3, one side fixed mounting of lathe body 1 has three-jaw chuck 4, one side that machine body 1 was kept away from to three-jaw chuck 4 can be dismantled and is connected with connection pad 6, one side fixed mounting that three-jaw chuck 4 was kept away from to connection pad 6 has hydraulic pressure cavity two-jaw chuck 7, one side joint that connection pad 6 was kept away from to hydraulic pressure cavity two-jaw chuck 7 has first jack catch 8 and second jack catch 9, second jack catch 9 is located directly over first jack catch 8, the external fixed mounting of three-jaw chuck 4 has idle claw 10 of three-jaw chuck that is located second jack catch 9 one side

Wherein, the one end that lathe main shaft pull rod 2 was kept away from to stock 3 runs through three-jaw chuck 4 and hydraulic pressure cavity two-jaw chuck 7 fixed connection, and the surface joint of connection pad 6 has fixing bolt 5, and fixing bolt 5 runs through connection pad 6 and three-jaw chuck 4 fixed connection.

The implementation mode is specifically as follows: the first clamping jaw 8 and the second clamping jaw 9 are fixedly connected to one side of the three-jaw chuck 4 through the connecting disc 6, so that a small square workpiece can be conveniently clamped, and the chuck can be adapted to products with more sizes by matching with the three-jaw chuck idle jaw 10, so that the practicability of the device is improved; through setting up 2 threaded connection of stock 3 and lathe main shaft pull rod, and the other end and the hydraulic pressure cavity two claw chuck 7 of stock 3 are connected to drive opening and shutting of first jack catch 8 and second jack catch 9 and press from both sides tightly the work piece, the simple operation, the practicality is stronger.

Referring to fig. 3-4, two knock pins 11 are fixedly mounted on the top of the second jaw 9, a support pin 12 is fixedly mounted on the outer surface of the first jaw 8, and the support pin 12 penetrates through the first jaw 8 and is fixedly connected to the inside of the hydraulic hollow two-jaw chuck 7.

The implementation mode is specifically as follows: by arranging the supporting pin 12, accurate positioning during clamping is facilitated.

The utility model discloses the theory of operation: firstly, the three-jaw chuck 4 is clamped on the outer surface of the long rod 3, then the connecting disc 6 is fixedly connected with the three-jaw chuck 4 through the fixing bolt 5, then the hydraulic hollow two-jaw chuck 7 is clamped on the other end of the long rod 3, and the first clamping jaw 8 and the second clamping jaw 9 are connected with the hydraulic hollow two-jaw chuck 7 through the positioning pins.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a lathe chuck structure, includes lathe body (1), the inside fixed mounting of lathe body (1) has lathe main shaft pull rod (2), its characterized in that: the output end screw thread joint of lathe main shaft pull rod (2) has stock (3), one side fixed mounting of lathe body (1) has three-jaw chuck (4), one side that lathe body (1) was kept away from in three-jaw chuck (4) can be dismantled and be connected with connection pad (6), one side fixed mounting that three-jaw chuck (4) were kept away from in connection pad (6) has hydraulic pressure cavity two-jaw chuck (7), one side joint that connection pad (6) were kept away from in hydraulic pressure cavity two-jaw chuck (7) has first jack catch (8) and second jack catch (9), second jack catch (9) are located first jack catch (8) directly over.

2. A machine tool chuck construction according to claim 1, wherein: one end of the long rod (3) far away from the machine tool spindle pull rod (2) penetrates through the three-jaw chuck (4) and is fixedly connected with the hydraulic hollow two-jaw chuck (7).

3. A machine tool chuck construction according to claim 1, wherein: the outer surface joint of connection pad (6) has fixing bolt (5), fixing bolt (5) run through connection pad (6) and three-jaw chuck (4) fixed connection.

4. A machine tool chuck construction according to claim 1, wherein: and the outer surface of the three-jaw chuck (4) is fixedly provided with a three-jaw chuck idle jaw (10) positioned on one side of the second jaw (9).

5. A machine tool chuck construction according to claim 1, wherein: two ejector pins (11) are fixedly mounted at the top of the second clamping jaw (9).

6. A machine tool chuck construction according to claim 1, wherein: and a supporting pin (12) is fixedly arranged on the outer surface of the first jaw (8), and the supporting pin (12) penetrates through the first jaw (8) and is fixedly connected inside the hydraulic hollow two-jaw chuck (7).