CN216692600U

CN216692600U - High-speed rotary joint for machine tool cooling liquid

Info

Publication number: CN216692600U
Application number: CN202123385281.1U
Authority: CN
Inventors: 刘海峰
Original assignee: Wuxi Heshen Machinery Technology Co ltd
Current assignee: Wuxi Heshen Machinery Technology Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-06-07
Anticipated expiration: 2031-12-29

Abstract

The utility model relates to a high-speed rotary joint for machine tool coolant, which comprises a plurality of bearings, springs, a connecting seat, a static ring, a limiting shaft, a movable ring, a hollow shaft and a fixed seat, wherein a sliding hole is formed in the connecting seat; one end of the static ring is movably inserted into the sliding hole, a plurality of separating holes are formed in the static ring, and the spring is movably inserted into the separating holes; the limiting shaft is movably inserted into the separation hole and connected with the connecting seat, and two ends of the spring are respectively connected with the limiting shaft and the separation hole; the movable ring is arranged opposite to the static ring; the movable ring and the bearing are fixed at one end of the hollow shaft; the fixing ring is arranged at one end of the hollow shaft and is positioned at one side of the bearing; the fixing base is installed on the connecting seat, is equipped with the fixed orifices on the fixing base, and the bearing is installed on the fixed orifices. The rotary joint is arranged on a main shaft of a machine tool, realizes rotary connection with a cooling pipeline, sends cooling liquid into the workpiece for cooling, and separates a static ring from a movable ring when the cooling liquid is not used, so that abrasion is reduced, and the service life is prolonged.

Description

High-speed rotary joint for machine tool cooling liquid

Technical Field

The utility model relates to a rotary joint, in particular to a high-speed rotary joint for cooling liquid of a machine tool.

Background

The high-speed rotary joint of coolant liquid has solved the lathe trade and has mostly used at present external condenser tube, and the coolant liquid can only spray on the work piece surface, can't cool off the cutter fine with some deep hole processing, leads to the cutter to damage seriously, can't guarantee problems such as machining precision.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a high-speed rotary joint of machine tool coolant, which can realize rotary connection and is convenient for cooling the interior of a workpiece, and the specific technical scheme is as follows:

the utility model provides a high-speed rotary joint of lathe coolant liquid, includes a plurality of bearings and spring, still includes: the connecting device comprises a connecting seat, a base and a connecting piece, wherein a sliding hole is formed in the connecting seat; one end of the static ring is movably inserted into the sliding hole, a plurality of separation holes are formed in the static ring, and the spring is movably inserted into the separation holes; the limiting shaft is movably inserted into the separation hole and connected with the connecting seat, and two ends of the spring are respectively connected with the limiting shaft and the separation hole; the movable ring is arranged opposite to the static ring; the movable ring and the bearing are fixed at one end of the hollow shaft; the fixing ring is arranged at one end of the hollow shaft and is positioned on one side of the bearing; the fixing seat is installed on the connecting seat, a fixing hole is formed in the fixing seat, and the bearing is installed on the fixing hole.

Preferably, the method further comprises the following steps: and the disc spring is arranged between the bearing and the fixed seat.

Preferably, the method further comprises the following steps: the first sealing ring is arranged on the sliding hole and is positioned between the sliding hole and the static ring.

Preferably, a liquid outlet hole is formed in the fixing base and communicated with the fixing hole.

Preferably, the fixing ring is a round nut.

The round nut is installed on the hollow shaft, and the round nut is installed on the hollow shaft.

Compared with the prior art, the utility model has the following beneficial effects:

the high-speed rotary joint for the cooling liquid of the machine tool, provided by the utility model, can be arranged on a main shaft of the machine tool, realizes rotary connection with a cooling pipeline, sends the cooling liquid into a workpiece for cooling, and separates a static ring from a dynamic ring when the cooling liquid is not used, so that the abrasion is reduced, and the service life is prolonged.

Drawings

FIG. 1 is a schematic structural view of a high-speed rotary joint for machine tool coolant;

FIG. 2 is a schematic structural view of the fixing base;

fig. 3 is a schematic structural view of a stationary ring.

Detailed Description

The utility model will now be further described with reference to the accompanying drawings.

As shown in fig. 1 to 3, a high-speed rotary joint for machine tool coolant includes a bearing 21, a spring 61, a connecting seat 8, a stationary ring 5, a limiting shaft 62, a moving ring 4, a hollow shaft 3, a fixed ring 24, a fixed seat 1, and a disc spring 23.

As shown in fig. 1 and 2, a sliding hole 81 is formed in the connecting seat 8, a first sealing groove 82 is formed in the sliding hole 81, and a first sealing ring 63 is installed in the first sealing groove 82. One end of the connecting seat 8 is provided with an internal thread. Fixing base 1 passes through the mounting screw at the other end of connecting seat 8, and the inside of fixing base 1 is equipped with fixed orifices 11, and fixed orifices 11 are the shoulder hole, and bearing 21 is equipped with two, and bearing 21 installs the one end at fixed orifices 11 to be equipped with spacer 27 between two bearings 21, jump ring 22 is equipped with to the one end of fixed orifices 11, and jump ring 22 restricts bearing 21 in fixed orifices 11. The disc spring 23 is installed in the fixing hole 11 and located between the shoulder of the fixing hole 11 and the bearing 21, and is used for pressing the bearing 21 and preventing the bearing 21 from axially moving. One end of the hollow shaft 3 is mounted on the bearing 21 and is limited on the bearing 21 through a fixing ring 24, the fixing ring 24 can be a round nut, a jackscrew 25 is mounted on the round nut, the jackscrew 25 is tightly pressed on the hollow shaft 3, and the jackscrew 25 prevents the round nut from loosening. The moving ring 4 is made of alloy, and is wear-resistant and resistant to high rotating speed. The movable ring 4 is fixed at one end of the hollow shaft 3 and is positioned in the fixing hole 11.

As shown in fig. 1 and 3, the stationary ring 5 is provided with a separating ring 52, the annular array on the separating ring 52 is provided with four separating holes 51, the separating holes 51 are stepped holes, one end of the stationary ring 5 is movably inserted in the sliding hole 81, the other end of the stationary ring is arranged opposite to the movable ring 4, the spring 61 is movably inserted in the separating holes 51 and corresponds to the separating holes 51 one by one, the limiting shaft 62 can adopt hexagon socket head cap screws, the limiting shaft 62 is movably inserted in the spring 61 and the separating holes 51 and is connected with the connecting seat 8, two ends of the spring 61 are respectively connected with the limiting shaft 62 and the separating holes 51, and the spring 61 separates the stationary ring 5 from the movable ring 4.

The fixed seat 1 is provided with a liquid outlet 12, and the liquid outlet 12 is communicated with the fixed hole 11 and used for discharging the cooling liquid entering the fixed hole 11.

A high-speed rotary joint for the cooling liquid of machine tool is a planar sealed rotary joint with high rotation speed up to 25000rpm and automatic open-close function, and features that when no cooling liquid is fed in, two moving rings (4) are not in contact with static ring (5), resulting in idle running and avoiding the abrasion caused by no cooling liquid. When cooling liquid enters the rotary joint, the static ring 5 is pushed to be in contact with the dynamic ring 4 by the pressure of the cooling liquid, and sealing is formed.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the utility model and should not be construed in any way as limiting the scope of the utility model. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive step, which shall fall within the scope of the appended claims.

Claims

1. A high-speed rotary joint of lathe coolant liquid includes a plurality of bearings (21) and spring (61), its characterized in that still includes:

the connecting device comprises a connecting seat (8), wherein a sliding hole (81) is formed in the connecting seat (8);

one end of the static ring (5) is movably inserted into the sliding hole (81), a plurality of separating holes (51) are formed in the static ring (5), and the spring (61) is movably inserted into the separating holes (51);

the limiting shaft (62) is movably inserted into the separation hole (51) and connected with the connecting seat (8), and two ends of the spring (61) are respectively connected with the limiting shaft (62) and the separation hole (51);

the movable ring (4) is arranged opposite to the static ring (5);

the movable ring (4) and the bearing (21) are fixed at one end of the hollow shaft (3);

the fixing ring (24) is mounted at one end of the hollow shaft (3), and is positioned at one side of the bearing (21); and

the fixing seat (1), install fixing seat (1) on connecting seat (8), be equipped with fixed orifices (11) on fixing seat (1), bearing (21) are installed on fixed orifices (11).

2. The high-speed rotary joint for machine tool coolant according to claim 1, further comprising: and the disc spring (23) is arranged between the bearing (21) and the fixed seat (1).

3. The high-speed rotary joint for machine tool coolant according to claim 1, further comprising: a first seal ring (63), wherein the first seal ring (63) is installed on the sliding hole (81) and is positioned between the sliding hole (81) and the static ring (5).

4. The high-speed rotary joint for machine tool coolant as claimed in claim 1, wherein the fixed base (1) is provided with a liquid outlet hole (12), and the liquid outlet hole (12) is communicated with the fixed hole (11).

5. A machine tool coolant high-speed rotary joint according to any one of claims 1 to 4, characterized in that the retaining ring (24) is a round nut.

6. The high-speed rotary joint for machine tool coolant according to claim 5, further comprising a jackscrew (25), wherein the jackscrew (25) is mounted on the round nut and pressed against the hollow shaft (3).