CN215999467U

CN215999467U - Rotary worktable of machine tool

Info

Publication number: CN215999467U
Application number: CN202122477728.1U
Authority: CN
Inventors: 崔容昕
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-03-11
Anticipated expiration: 2031-10-14

Abstract

The utility model discloses a lathe swivel work head belongs to machine tool equipment technical field. The structure comprises a transmission shaft which is rotatably arranged on a machine tool, the upper end of the transmission shaft is fixedly connected with a workbench, the lower end of the workbench is provided with an annular extending part, the extending part is slidably arranged in an annular chute, the chute is arranged at the upper end of a fixed disc, the fixed disc is arranged at the periphery of the transmission shaft and is fixedly arranged on the machine tool, a plurality of piston holes communicated with the chute are uniformly arranged on the peripheral side wall of the fixed disc, one side of the piston hole close to the chute is provided with a piston in a sliding way, one side of the piston close to the chute is provided with a mounting hole, the inner side wall of the mounting hole far away from the chute is fixedly connected with one end of a spring, the other end of the spring is fixedly connected with a steel ball at the port of the mounting hole, the steel ball is in sliding connection with the inner wall of the mounting hole, the steel ball props against the side wall of the extending part, and the piston hole is connected with an external hydraulic station. The device is free from jamming and convenient to operate.

Description

Rotary worktable of machine tool

Technical Field

The utility model relates to a machine tool equipment technical field specifically is a lathe swivel work head.

Background

In the existing machine tool machining, a multi-station rotary workbench plays an important role in machining, and plays roles in fixing and angle adjustment of a workpiece, the locking is realized by end face pressing or worm self locking in the machining process, the contact surface is small, the locking force is not large enough, the rigidity of equipment is not enough, and the stability and the precision are influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lathe swivel work head 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:

a rotary worktable of a machine tool comprises a transmission shaft which is rotatably arranged on the machine tool, a fixed disc is arranged on the periphery of the transmission shaft, the fixed disc is fixedly arranged on the machine tool, the upper end of the transmission shaft is fixedly connected with the worktable, the worktable is positioned above the fixed disc, the workstation lower extreme is provided with annular extension, the annular spout with extension matched with is seted up to the fixed disk upper end, the extension slides and sets up in the spout, evenly set up a plurality ofly on the lateral wall of fixed disk week side with the communicating piston hole of spout, one side that the piston hole is close to the spout slides and is provided with the piston, the mounting hole has been seted up to one side that the piston is close to the spout, the inside wall fixedly connected with spring of spout is kept away from to the mounting hole, the steel ball fixed connection of the spring other end and mounting hole port department, steel ball and mounting hole inner wall sliding connection, the steel ball contacts with the lateral wall of extension, the piston hole is connected with outside hydraulic pressure station.

Adopt above-mentioned technical scheme, through evenly seting up a plurality of piston holes, through controlling the hydraulic pressure station, make the piston release, alright support the extension of workstation lower extreme and press from both sides tightly, realize the fixed to the workstation, a plurality of pistons cooperate jointly, improve the contact surface, improve the locking force, when the piston returns, under the cooperation of steel ball and spring, make the piston receive backward thrust, the piston of being convenient for returns, avoids appearing piston head and the dead problem of extension lateral wall card.

As a further aspect of the present invention: and a sealing ring is arranged on the side wall of one side of the piston, which is far away from the sliding groove.

By adopting the technical scheme, the sealing performance inside the piston hole is ensured.

As a further aspect of the present invention: the sliding blocks are symmetrically and fixedly arranged on the side wall of one side, close to the sliding groove, of the piston, the sliding groove corresponding to the sliding block is formed in the inner wall of the piston hole, and the sliding block is arranged in the sliding groove in a sliding mode.

By adopting the technical scheme, the sliding block is matched with the sliding groove, so that the movement of the piston is limited, the problem that the piston is excessively ejected out or retreated is avoided, and the stability is improved.

As a further aspect of the present invention: an oil guide port is arranged on the outer side wall of the piston hole and is connected with the hydraulic station through an oil guide pipe.

As a further aspect of the present invention: the transmission shaft is sleeved with a crossed roller bearing positioned on the inner side of the extension part, an inner ring of the crossed roller bearing is fixedly connected with the transmission shaft, the upper end of the inner ring of the crossed roller bearing is fixedly connected with the lower end of the workbench, and an outer ring of the crossed roller bearing is fixedly connected with the fixed disc.

As a further aspect of the present invention: six piston holes are formed.

Compared with the prior art, the beneficial effects of the utility model are that: the plurality of piston holes are uniformly formed, the piston is pushed out by controlling the hydraulic station, the extending part at the lower end of the workbench can be abutted and clamped, the workbench is fixed, the plurality of pistons are matched together, the contact surface is improved, the locking force is improved, when the piston returns, the piston is pushed backwards under the matching of the steel balls and the springs, the piston is convenient to return, and the problem that the piston head and the side wall of the extending part are clamped is avoided;

to sum up, the utility model discloses simple structure effectively improves the locking force, and the piston advances and retreats smoothly, and no card is dun, the operation of being convenient for.

Drawings

FIG. 1 is a block diagram of a rotary table of a machine tool;

fig. 2 is a piston structure view of a rotary table of a machine tool.

In the figure: 1. a drive shaft; 2. fixing the disc; 3. a chute; 4. an extension portion; 5. a work table; 6. an oil guide port; 7. a crossed roller bearing; 8. a piston bore; 9. a piston; 10. mounting holes; 11. a spring; 12. steel balls; 13. a chute; 14. a slider; 15. and (4) a sealing ring.

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.

Example 1

Referring to fig. 1-2, the present embodiment provides a rotary worktable for a machine tool, including a transmission shaft 1 rotatably disposed on the machine tool, a fixed plate 2 disposed around the transmission shaft 1, the fixed plate 2 fixedly disposed on the machine tool, an upper end of the transmission shaft 1 fixedly connected to a worktable 5, the worktable 5 located above the fixed plate 2, an annular extension portion 4 disposed at a lower end of the worktable 5, an annular slide groove 3 disposed at an upper end of the fixed plate 2 and matching with the extension portion 4, the extension portion 4 slidably disposed in the slide groove 3, preferably, the transmission shaft 1 is sleeved with a cross roller bearing 7 disposed inside the extension portion 4, an inner ring of the cross roller bearing 7 is fixedly connected to the transmission shaft 1, an upper end of an inner ring of the cross roller bearing 7 is fixedly connected to a lower end of the worktable 5, an outer ring of the cross roller bearing 7 is fixedly connected to the fixed plate 2, a plurality of piston holes 8 communicated with the slide groove 3 are uniformly disposed on a side wall of the fixed plate 2, six piston holes 8 are arranged, a piston 9 is arranged on one side of each piston hole 8 close to the corresponding sliding chute 3 in a sliding manner, a sealing ring 15 is arranged on the side wall of the piston 9 far away from the chute 3, a mounting hole 10 is arranged on the side of the piston 9 close to the chute 3, the inner side wall of the mounting hole 10 far away from the chute 3 is fixedly connected with one end of a spring 11, the other end of the spring 11 is fixedly connected with a steel ball 12 at the port of the mounting hole 10, the steel ball 12 is in sliding connection with the inner wall of the mounting hole 10, the steel ball 12 is propped against the side wall of the extension part 4, on the other hand, the side wall of the piston 9 close to the chute 3 is symmetrically and fixedly provided with a slide block 14, the inner wall of the piston hole 8 is provided with a chute 13 corresponding to the slide block 14, the slide block 14 is arranged in the chute 13 in a sliding way, the piston hole 8 is connected with an external hydraulic station, preferably, an oil guide port 6 is arranged on the outer side wall of the piston hole 8, and the oil guide port 6 is connected with the hydraulic station through an oil guide pipe.

When the top of the workbench 5 needs to be fastened, the piston 9 is ejected out by controlling the hydraulic station, the steel balls 12 are contacted with the salted fish extension part 4, and then the end surface of the piston 9 is ejected to the side wall of the extension part 4, so that the workbench 5 is fixedly clamped; when the piston 9 retreats, the steel ball 12 and the spring 11 provide backward thrust for the piston 9, so that the end surface of the piston 9 is easier to leave the side wall of the extension part 4, and the problem that the piston 9 is blocked with the extension part 4 cannot occur.

It should be noted that the above embodiments are only specific and clear descriptions of technical solutions and technical features of the present application. However, to those skilled in the art, aspects or features that are part of the prior art or common general knowledge are not described in detail in the above embodiments.

In addition, the technical solutions of the present application are not limited to the above-described embodiments, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined, so that other embodiments that can be understood by those skilled in the art may be formed.

Claims

1. A rotary worktable of a machine tool comprises a transmission shaft (1) which is rotatably arranged on the machine tool, and is characterized in that a fixed disc (2) is arranged on the periphery of the transmission shaft (1), the fixed disc (2) is fixedly arranged on the machine tool, the upper end of the transmission shaft (1) is fixedly connected with a worktable (5), the worktable (5) is positioned above the fixed disc (2), an annular extension part (4) is arranged at the lower end of the worktable (5), an annular sliding chute (3) matched with the extension part (4) is arranged at the upper end of the fixed disc (2), the extension part (4) is slidably arranged in the sliding chute (3), a plurality of piston holes (8) communicated with the sliding chute (3) are uniformly arranged on the side wall of the periphery of the fixed disc (2), a piston (9) is slidably arranged on one side of the piston hole (8) close to the sliding chute (3), and a mounting hole (10) is arranged on one side of the piston (9) close to the sliding chute (3), the inside wall fixedly connected with spring (11) that spout (3) were kept away from in mounting hole (10), steel ball (12) fixed connection of spring (11) other end and mounting hole (10) port department, steel ball (12) and mounting hole (10) inner wall sliding connection, steel ball (12) contact with the lateral wall of extension (4), piston hole (8) are connected with outside hydraulic pressure station.

2. A rotary machine tool table according to claim 1, wherein the piston (9) is provided with a sealing ring (15) on the side wall remote from the slide (3).

3. The rotary worktable of a machine tool as claimed in claim 2, wherein the side wall of the piston (9) close to the chute (3) is symmetrically and fixedly provided with slide blocks (14), the inner wall of the piston hole (8) is provided with a chute (13) corresponding to the slide blocks (14), and the slide blocks (14) are slidably arranged in the chute (13).

4. The rotary worktable of claim 1, wherein an oil guide port (6) is arranged on the outer side wall of the piston hole (8), and the oil guide port (6) is connected with a hydraulic station through an oil guide pipe.

5. A rotary table of machine tool according to claim 1, characterized in that the transmission shaft (1) is sleeved with a crossed roller bearing (7) located inside the extension part (4), the inner ring of the crossed roller bearing (7) is fixedly connected with the transmission shaft (1), the upper end of the inner ring of the crossed roller bearing (7) is fixedly connected with the lower end of the table (5), and the outer ring of the crossed roller bearing (7) is fixedly connected with the fixed plate (2).

6. A rotary machine tool table according to claim 3, wherein six of the piston bores (8) are provided.