CN207915112U - A kind of machining center main shaft preventing water leakage water flowing cooling device - Google Patents

Abstract

The utility model discloses an anti-leakage water-through-water cooling device for a main shaft of a machining center, which comprises a main shaft box, a sealing structure, and a cooling water spray pipe. The water outlet is connected to the cooling water sealing structure, and the sealing structure is connected to the cooling water spray pipe. The cooling water sealing structure includes a channel block and a sealing shaft. The channel block is connected to the spindle box. One side of the channel block is provided with a water outlet channel 1 connected with the end of the cooling water spray pipe, and several water outlet channels 2 are arranged on the upper part of the channel block, and the water outlet channel 1 is vertically connected with the water outlet channel 2, and the upper end of the sealing shaft Cooperate with the water outlet of the cooling water channel, a compression spring is set on the sealing shaft, the upper end of the compression spring cooperates with the lower section of the upper part of the sealing shaft, and the lower end of the compression spring cooperates with the upper section of the channel block. The utility model has the function of preventing water leakage and avoiding potential safety hazards.

Description

A leak-proof water-through-water cooling device for the main shaft of a machining center

technical field

The utility model relates to the technical field of water-through cooling of machine tools, in particular to a leak-proof water-through-water cooling device for the main shaft of a machining center.

Background technique

Cooling of machine tools is a common problem faced by the machine tool industry, especially when machining parts on machine tools, a large amount of coolant is required to cool and flush. Under the action of inertia, the coolant cannot stop flushing in time, and there is a problem of water leakage and dripping, which not only affects the cleanliness of the equipment, but also easily causes safety hazards.

Utility model content

The utility model aims at the above-mentioned deficiencies in the prior art, and provides a leak-proof water-through water cooling device for the spindle of the machining center; the utility model loses water pressure after the cooling pump stops working, and the sealing shaft recovers to be jacked up under the action of the compression spring. state, the channel block is in a closed state, and the water in the external pipeline cannot reach the inside of the machine tool through the channel block, so as to play the function of preventing water leakage, thereby keeping the equipment clean and hygienic and safe in production, and avoiding potential safety hazards.

The technical scheme that the utility model solves technical problem is:

A leak-proof water-through-water cooling device for the spindle of a machining center, including a spindle box, a sealing structure, and a cooling water spray pipe. A cooling water channel is arranged on the wall of the spindle box. The cooling water sealing structure is connected, and the sealing structure is connected with the cooling water spray pipe. The cooling water sealing structure includes a channel block and a sealing shaft. The channel block is connected with the headstock. The upper part of the channel block is provided with a guide hole that matches the sealing shaft. One side of the channel block is provided with a water outlet channel 1 connected to the end of the cooling water spray pipe, and a number of water outlet channels 2 are also provided on the upper part of the channel block, and the water outlet channel 1 is vertically connected with the water outlet channel 2; the seal shaft The upper end cooperates with the water outlet of the cooling water channel. The sealing shaft is covered with a compression spring. The upper end of the compression spring cooperates with the lower section of the upper part of the sealing shaft.

The upper end of the sealing shaft is provided with a conical surface or a spherical surface, and the outlet of the cooling water channel is provided with a conical hole matching the conical surface or a spherical hole matching the spherical surface.

The lower end of the sealing shaft is provided with a limit stopper to prevent the seal shaft from coming out of the guide hole of the channel block upwards. The limit stopper is a spring retaining ring for the shaft. Groove fit.

The external pipeline includes a pipeline, joints at both ends of the pipeline connected to the pipeline, and a check valve is arranged on the pipeline.

There are multiple water outlet channels, and each of the water outlet channels is connected to a cooling water spray pipe. The channel block is provided with a connecting channel, and the multiple water outlet channels are connected through the connecting channel.

The upper section of the channel block is connected with the lower end surface of the headstock through bolts.

The beneficial effects of the utility model:

1. When the cooling pump of the utility model works, the cooling liquid reaches the water hole of the spindle box through the external pipeline, and the sealing shaft is pushed open under the influence of the water pressure, and the cooling liquid reaches the cooling spray pipe through the channel block, and finally sprays out It reaches the tool and the workpiece to realize the cooling and flushing function; after the cooling pump stops working, the water pressure loses, and the sealing shaft returns to the jacked-up state under the action of the compression spring, the channel block is in a closed state, and the water in the external pipeline cannot pass through the channel block It reaches the inside of the machine tool, so as to prevent water leakage, keep the equipment clean and safe in production, and avoid potential safety hazards.

2. The utility model has a compact structure, is convenient for disassembly and maintenance, and has high sealing reliability.

Description of drawings

Fig. 1 is the structural representation of the leak-proof water cooling device of the utility model;

Fig. 2 is a schematic diagram of the structure and connection relationship of part C in Fig. 1;

Fig. 3 is the D-D sectional view of view C part;

Figure 4 is a partial enlarged view of I in Figure 3.

Detailed ways

In order to better understand the utility model, the implementation of the utility model will be explained in detail below in conjunction with the accompanying drawings.

A leak-proof water-through water cooling device for the spindle of a machining center, including a spindle box 1, a sealing structure, and a cooling water spray pipe 6. A cooling water channel is arranged on the wall of the spindle box, and the water inlet of the cooling water channel is connected to a cooling pump A through an external pipeline B. Cooling The outlet of the water channel is connected to the cooling water sealing structure, and the sealing structure is connected to the cooling water spray pipe 6. The cooling water sealing structure includes a channel block 5 and a sealing shaft 2. The channel block is connected to the spindle box. The upper part of the channel block 5 is provided with The guide hole 53 matched with the sealing shaft 2, one side of the channel block is provided with a water outlet channel 1 51 connected to the end of the cooling water spray pipe 6, and several water outlet channels 52 are also provided on the upper part of the channel block, and the water outlet channel The first 51 is vertically connected with the second water outlet channel 52. The upper end of the sealing shaft 2 cooperates with the water outlet of the cooling water channel, the sealing shaft 2 is covered with a compression spring 3, the upper end of the compression spring 3 cooperates with the lower section of the upper protrusion 21 of the sealing shaft 2, and the lower end of the compression spring matches the upper section of the channel block Cooperate.

The upper end of the sealing shaft 2 is provided with a conical surface or a spherical surface 22, and the outlet of the cooling channel is provided with a conical hole matching the conical surface, or a spherical hole matching the spherical surface.

The lower end of the sealing shaft 2 is provided with a limit stopper 4 that prevents the seal shaft from coming out of the guide hole of the channel block. Shaft annular groove fit.

The external pipeline B includes a pipeline, joints at both ends of the pipeline connected to the pipeline, and a check valve is arranged on the pipeline.

There are multiple outlet channels 151, and each outlet channel 1 is respectively connected to a cooling spray pipe 6. The channel block 5 is provided with a connecting channel 54, and a plurality of outlet channels 51 are connected by Channel 54 communicates.

The upper section of the channel block 5 is connected to the lower end surface 11 of the headstock 1 by bolts.

Work and operating principle of the present utility model:

In Fig. 1 of the utility model device, part A is a cooling pump; the external pipeline includes check valves, pipelines, and joints; part C is a leak-proof water-through cooling device. Part C is specifically to open a hole on the spindle box 1 to connect the pipe joint, so that the cooling water passage passes through the spindle box, and then connect the channel block 5 on the lower side of the cooling water hole of the spindle box, fix it on the spindle box with screws, and put the shaft 2, Spring 3, axle retaining ring 4 are installed in the water hole place that channel block cooperates with main shaft box. Finally, the cooling water spray pipe 6 is connected to the channel block 5 .

The specific principle is:

1. When the cooling pump A is not working, the sealing shaft 2 is kept in a jacked-up state under the action of the spring 3 .

2. The cooling pump A works, and the coolant passes through the pipeline B to the water hole of the spindle box. Under the influence of the water pressure, the shaft 2 is pushed away. The coolant passes through the channel block 5, reaches the cooling spray pipe 6, and finally sprays out It reaches the tool and workpiece to realize the function of cooling and flushing.

3. When the cooling pump A stops working, the water pressure loses, and the shaft 2 returns to the jacked-up state under the action of the spring 3. The channel block 5 is in a closed state, and the water in the external pipe B cannot reach the inside of the machine tool through the channel block, so as to prevent water leakage.

Although the utility model has shown and described the utility model embodiment, to those of ordinary skill in the art, can understand that without departing from the principle and spirit of the utility model, various changes, modifications, Replacement and modification all belong to the scope of protection of the above claims of the present utility model.

Claims (7)

1. a kind of machining center main shaft preventing water leakage water flowing cooling device, including spindle box, sealing structure, cooling sparge pipe, special Sign is that main shaft tank wall is equipped with cooling water channel, and cooling water channel water inlet is connect by external pipe with cooling pump, and cooling water is said The mouth of a river is connect with cooling water seal structure, and sealing structure is connect with cooling sparge pipe, and the cooling water seal structure includes channel Block, sealing axis, passage block are connect with spindle box, and the passage block top is equipped with and the sealing matched pilot hole of axis, passage block Side be equipped with the exhalant canal one being connect with cooling water spray tube end, be additionally provided with several exhalant canals two on passage block top, The exhalant canal one and two vertical connection of exhalant canal；The upper end of the sealing axis coordinates with cooling water channel water outlet, sealing Be set with compressed spring on axis, compressed spring upper end and the lower section of sealing axis upper lobes coordinate, compressed spring lower end with it is logical The upper section of road block coordinates.

2. a kind of machining center main shaft preventing water leakage water flowing cooling device as described in claim 1, characterized in that on the sealing axis End is equipped with taper surface or spherical, and cooling water channel water outlet is equipped with and the matched bellmouth of taper surface, or and spherical Matched spherical pore.

3. a kind of machining center main shaft preventing water leakage water flowing cooling device as described in claim 1, characterized in that the sealing axis Lower end is equipped with the limited block for preventing sealing axis prolapse upwards from the pilot hole with passage block.

4. a kind of machining center main shaft preventing water leakage water flowing cooling device as claimed in claim 3, characterized in that the limited block For axis check ring, axis check ring and the annular groove of sealing axis coordinate.

5. a kind of machining center main shaft preventing water leakage water flowing cooling device as described in claim 1, characterized in that the external pipe The connector at the pipeline both ends being connected including pipeline, with pipeline is equipped with check-valves on pipeline.

6. a kind of machining center main shaft preventing water leakage water flowing cooling device as described in claim 1, characterized in that the exhalant canal One is equipped with multiple, each described exhalant canals one connect with a cooling sparge pipe respectively, passage block equipped with interface channel, Multiple exhalant canals one are connected to by interface channel.

7. a kind of machining center main shaft preventing water leakage water flowing cooling device as described in claim 1, characterized in that the passage block Upper section is bolted with spindle box lower face.