CN216828667U

CN216828667U - High strength main shaft convenient to use

Info

Publication number: CN216828667U
Application number: CN202220455640.1U
Authority: CN
Inventors: 李维; 葛建国
Original assignee: Jiangsu Swift Machinery Technology Co ltd
Current assignee: Jiangsu Swift Machinery Technology Co ltd
Priority date: 2022-03-04
Filing date: 2022-03-04
Publication date: 2022-06-28
Anticipated expiration: 2032-03-04

Abstract

The utility model discloses a high strength main shaft convenient to use relates to main shaft structure technical field, has solved among the prior art main shaft structure and has not been convenient for the even cooling of cutter and the heat dissipation scheduling problem of inside bearing part. The tool comprises a vertical mounting sleeve, wherein an upper bearing assembly and a lower bearing assembly which are distributed up and down are arranged in the mounting sleeve, the mounting sleeve is rotatably connected with a mandrel through the bearing assemblies, and the lower end of the mandrel is used for connecting a tool; a circle of cooling ring groove positioned outside the lower bearing assembly is arranged in the sleeve, the lower side of the cooling ring groove is connected with a water inlet, the upper side of the cooling ring groove is connected with a plurality of water outlet pipelines at equal height positions, and the water outlet pipelines are downwards connected with a cooling water nozzle. It cools off inside bearing from bottom to top through the coolant liquid earlier, and the high position of rethread is connected outlet conduit and is cooled off the cutter, has reached the effect that makes cutting fluid cooling effect more even.

Description

High strength main shaft convenient to use

Technical Field

The utility model relates to a main shaft technical field, in particular to high strength main shaft convenient to use.

Background

The spindle of a machine tool refers to a shaft of the machine tool for driving a workpiece or a tool to rotate, and generally comprises a spindle part, a bearing, a transmission part (a gear or a belt pulley), and the like. The machine is mainly used for supporting transmission parts such as gears and belt wheels and transmitting motion and torque, such as a machine tool spindle; some are used for clamping workpieces, such as mandrels; however, in order to improve the cooling efficiency, the cooling is performed in all directions by requiring a plurality of cooling nozzles, but the conventional spindle structure is inconvenient to maintain the supply of liquid to the nozzles at different positions, and affects the uniform cooling of the cutter and the heat dissipation effect of the inner bearing portion.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high strength main shaft convenient to use, it cools off inside bearing from bottom to top earlier through the coolant liquid, and outlet conduit is connected to high positions such as rethread to cool off the cutter for the cooling effect of cutting fluid is more even.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a high-strength main shaft convenient to use comprises a vertical mounting sleeve, wherein an upper bearing assembly and a lower bearing assembly which are distributed up and down are arranged in the mounting sleeve, the mounting sleeve is rotatably connected with a mandrel through the bearing assemblies, and the lower end of the mandrel is used for connecting a cutter;

the upper part of the mounting sleeve is provided with a circle of cooling ring groove positioned outside the lower bearing assembly, the lower side of the cooling ring groove is connected with a water inlet, the upper side of the cooling ring groove is connected with a plurality of water outlet pipelines at equal height positions, and the water outlet pipelines are downwards connected with a cooling water nozzle.

Furthermore, one end of the mounting sleeve, which is close to the cutter, is connected with a cooling cylinder, the lower bearing assembly is mounted in the cooling cylinder, and the cooling ring groove is formed in the cooling cylinder.

Furthermore, the cooling ring groove is formed in the outer periphery of the cooling cylinder, the outer periphery of the cooling cylinder is connected with the outer sleeve, the water outlet pipeline is formed in the outer sleeve, and through holes used for communicating the cooling ring groove with the corresponding water outlet pipelines are further formed in the inner periphery of the outer sleeve.

Furthermore, a plurality of spacer rings which are distributed up and down are arranged in the cooling ring groove, through holes are formed in the spacer rings, and the through holes in the adjacent spacer rings are distributed at two ends in the same diameter direction.

Furthermore, the through hole is an annular hole with an angle smaller than 45 degrees, and the spacer ring is penetrated into an annular shape with an angle not smaller than 315 degrees.

Furthermore, the number of the spacer rings is two, the through holes in the lower spacer ring are arranged on the side far away from the water inlet, and the through holes in the lower spacer ring are arranged on the side close to the water inlet.

Furthermore, the lower end of the mandrel is connected with a water retaining ring, the top surface of the water retaining ring is connected with a plurality of rings of baffle rings, and the lower end of the mounting sleeve is provided with an annular groove matched with the baffle rings.

Furthermore, the lower side of the water retaining ring is connected with a boss which is in a conical shape with a large upper part and a small lower part, the boss is connected to the periphery of the mandrel through a screw, and the screw is obliquely and upwards connected to the mandrel.

To sum up, the utility model discloses following beneficial effect has:

cooling liquid is firstly introduced into the cooling ring groove from bottom to top to cool the inner bearing, the flow path of the cooling liquid is improved through the spacer ring, the cooling effect is improved, and then the cooling water is sprayed and cooled on the cutter through the nozzle by connecting the water outlet pipelines at equal heights, so that the cooling effect of the cutting liquid is more uniform; the water retaining ring is convenient to mount and dismount, can be dismounted without being integrally dismounted, and is convenient to replace or maintain and use.

Drawings

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

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

fig. 3 is an enlarged schematic view of a portion B of fig. 1.

In the figure, 1, a sleeve is installed; 11. a lower bearing assembly; 2. a mandrel; 3. an outer sleeve; 31. a water inlet; 32. a water outlet pipeline; 33. a cooling water nozzle; 4. a cooling cylinder; 41. cooling the ring groove; 42. a spacer ring; 43. a through hole; 5. a water retaining ring; 51. a baffle ring; 52. and (4) a boss.

Detailed Description

The following description will be further described with reference to the accompanying drawings, which are not intended to limit the present invention.

A high-strength spindle convenient to use is shown in figure 1 and comprises a vertical mounting sleeve 1, wherein an upper bearing assembly and a lower bearing assembly 11 which are distributed up and down are arranged in the mounting sleeve 1, the upper bearing assembly and the lower bearing assembly are rotatably connected with a mandrel 2 through upper and lower bearings, the lower end of the mandrel 2 is used for connecting a cutter, and a specific connecting structure of the sleeve and the mandrel 2 is the prior art and is not described in detail herein.

As shown in fig. 1, in order to improve the water outlet effect of the water inlet to each water outlet and make the water outlet in each direction more uniform, a circle of cooling ring groove 41 is arranged in the mounting sleeve 1 and located outside the lower bearing assembly 11, and one side of the lower end of the cooling ring groove 41 is connected with a water inlet 31 for connecting to a water inlet channel; a plurality of water outlet pipelines 32 are uniformly distributed at the upper end of the sleeve along the periphery of the sleeve at the equal height position (the water outlet pipelines 32 are arranged by avoiding the water inlet 31), and the water outlet pipelines 32 are connected to the cooling water nozzle 33 through hoses after downwards penetrating through the mounting sleeve 1; one of the water outlet pipes 32 can also be communicated with the water outlet, and whether the cutter is cooled or not is controlled by opening and closing of a valve at the water outlet and a cooling water nozzle 33.

As shown in fig. 1 and fig. 2, in order to facilitate the disassembly and assembly when the water-cooling assembly is corroded or maintained, a coaxially arranged cooling cylinder 4 is fixedly connected to one end of the mounting sleeve 1 close to the cutter through screws, the lower bearing assembly 11 is installed in the cooling cylinder 4 in an interference manner, and a cooling ring groove 41 is opened in the cooling cylinder 4;

specifically, the cooling ring groove 41 is arranged on the periphery of the cooling cylinder 4, the periphery of the cooling cylinder 4 is further connected with the outer sleeve 3 through screws, and the outer sleeve 3 is arranged outside the cooling ring groove 41 in a blocking manner to form a closed water cooling space; each water outlet pipeline 32 is arranged in the outer sleeve 3 and downwards penetrates through the bottom of the outer sleeve 3, and through holes for communicating the cooling ring groove 41 with each corresponding water outlet pipeline 32 are uniformly formed in the inner periphery of the outer sleeve 3.

As shown in fig. 2, a plurality of spacer rings 42 distributed up and down are further integrally connected in the cooling ring groove 41, through holes 43 are formed in the spacer rings 42, and the through holes 43 in adjacent spacer rings 42 are distributed at two ends in the same diameter direction; in order to facilitate the flow of cooling water and reduce the possibility of clogging, the through-holes 43 are annular holes with an angle of less than 45 degrees, and the spacer ring 42 is inserted in an annular shape with an angle of not less than 315 degrees.

In this embodiment, the through hole 43 is a 30 ° annular hole, and the spacer ring 42 is a 330 ° annular hole; two spacer rings 42 are provided, the through hole 43 of the lower spacer ring 42 is opened on the side away from the water inlet 31, and the through hole 43 of the lower spacer ring 42 is opened on the side close to the water inlet 31.

As shown in fig. 3, in order to improve the waterproof performance of the spindle, the lower end of the spindle 2 is connected with a water retaining ring 5, the top surface of the water retaining ring 5 is connected with a plurality of rings of retaining rings 51, and the lower end of the mounting sleeve 1 is provided with an annular groove matched with the retaining rings 51; the outer periphery of the water retaining ring 5 extends outwards, and a conical drainage surface with a small upper part and a large lower part is formed between the top of the outermost ring of the water retaining ring 51 and the outer periphery of the water retaining ring 5.

As shown in FIG. 3, in order to facilitate the installation and removal of the water stop ring 5, a boss 52 is connected to the lower side of the water stop ring 5, and is tapered with a large upper part and a small lower part, the boss 52 is connected to the outer periphery of the mandrel 2 by a screw, and the screw is connected to the mandrel 2 obliquely and upwardly, in this embodiment, the screw is perpendicular to the tangent plane of the boss 52 at this position, so as to facilitate the screwing of the screw.

The working principle is as follows:

the cooling liquid enters the cooling ring groove 41 from the water inlet 31, sequentially flows upwards through the through holes 43 on the spacer ring 42 until the cooling liquid is uniformly distributed into the water outlet pipelines 32 at the equal height position and downwards, and finally is sprayed out from the cooling water nozzles 33 through the hoses.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art can make various modifications or equivalent substitutions within the spirit and scope of the present invention, and such modifications or equivalent substitutions should also be considered as falling within the scope of the present invention.

Claims

1. A high strength main shaft convenient to use which characterized in that: the tool comprises a vertical mounting sleeve (1), wherein an upper bearing assembly and a lower bearing assembly (11) which are distributed up and down are arranged in the mounting sleeve (1), the mounting sleeve is rotatably connected with a mandrel (2) through the bearing assemblies, and the lower end of the mandrel (2) is used for connecting a tool;

the mounting sleeve (1) is internally provided with a circle of cooling ring groove (41) positioned outside the lower bearing assembly (11), the lower side of the cooling ring groove (41) is connected with the water inlet (31), the upper side of the cooling ring groove is connected with a plurality of water outlet pipelines (32) at equal height positions, and the water outlet pipelines (32) are downwards connected with the cooling water nozzle (33).

2. A high-strength spindle for easy use according to claim 1, wherein: one end, close to the cutter, of the mounting sleeve (1) is connected with a cooling cylinder (4), the lower bearing assembly (11) is mounted in the cooling cylinder (4), and a cooling ring groove (41) is formed in the cooling cylinder (4).

3. A high strength spindle for easy use according to claim 2, wherein: the cooling ring groove (41) is arranged on the periphery of the cooling cylinder (4), the outer sleeve (3) is connected with the periphery of the cooling cylinder (4), the water outlet pipeline (32) is arranged in the outer sleeve (3), and through holes used for communicating the cooling ring groove (41) with the corresponding water outlet pipelines (32) are further formed in the inner periphery of the outer sleeve (3).

4. A high-strength spindle for easy use according to claim 1, wherein: a plurality of spacer rings (42) distributed up and down are further arranged in the cooling ring groove (41), through holes (43) are formed in the spacer rings (42), and the through holes (43) in the adjacent spacer rings (42) are distributed at two ends of the same diameter direction.

5. A high strength spindle for easy use according to claim 4, wherein: the through hole (43) is an annular hole with an angle smaller than 45 degrees, and the spacer ring (42) is penetrated into an annular shape with an angle not smaller than 315 degrees.

6. A high strength spindle for easy use according to claim 4 or 5, wherein: the number of the spacer rings (42) is two, the through holes (43) in the lower spacer ring (42) are arranged on one side far away from the water inlet (31), and the through holes (43) in the lower spacer ring (42) are arranged on one side close to the water inlet (31).

7. A high strength spindle for easy use according to claim 1, wherein: the lower end of the mandrel (2) is connected with a water retaining ring (5), the top surface of the water retaining ring (5) is connected with a plurality of rings of retaining rings (51), and the lower end of the mounting sleeve (1) is provided with an annular groove matched with the retaining rings (51).

8. A high strength spindle for easy use according to claim 7, wherein: the lower side of the water retaining ring (5) is connected with a boss (52) which is in a conical shape with a large upper part and a small lower part, the boss (52) is connected to the periphery of the mandrel (2) through a screw, and the screw is obliquely and upwards connected to the mandrel (2).