CN2838816Y

CN2838816Y - Main shaft for working central machine

Info

Publication number: CN2838816Y
Application number: CN 200520044963
Authority: CN
Inventors: 杨文洲; 杨传文
Original assignee: JIANRONG PRECISE MACHINE (SHANGHAI) CO Ltd
Current assignee: JIANRONG PRECISE MACHINE (SHANGHAI) CO Ltd
Priority date: 2005-09-13
Filing date: 2005-09-13
Publication date: 2006-11-22
Anticipated expiration: 2015-09-13

Abstract

The utility model relates to a main shaft for a center machining machine, which is characterized in that the utility model comprises a main shaft seat, a main shaft which is arranged in the main shaft seat, a broaching tool claw assembly which is arranged in the main shaft, a tool shank which is arranged in the broaching tool claw assembly, a lower ball bearing, a thrust bearing, an upper ball bearing, a belt pulley, an upper cover of the main shaft seat which is arranged on the end face at the upper end of the main shaft seat, a lower cover of the main shaft seat which is arranged on the end face of the lower end of the main shaft seat and a water throwing ring which is arranged at the end part of the lower end of the main shaft, wherein the lower ball bearing, the thrust bearing, the upper ball bearing and the belt pulley are successively assembled on the main shaft. One side of the end part of the lower end of the main shaft seat is provided with an inlet passage of the main shaft seat, and one side of the lower cover of the main shaft seat has an inlet passage of the lower cover of the main shaft seat, which is communicated with the inlet passage of the main shaft seat. The outer wall of the end part of the lower end of the main shaft is provided with an O-shaped sealing ring groove. The inner wall of the water throwing ring is provided with a groove which is used for arranging an O-shaped sealing ring. The O-shaped sealing groove and the end part of the lower end of the main shaft form fixed sealing connection by the O-shaped sealing ring. The end face of the water throwing ring also extents outwards to form a cap edge. The lower end part of the main shaft is also provided with a spacing ring of which the outer wall presents a sawtooth shape. The place of the lower end face of the lower cover of the main shaft which is close to the water throwing ring is also provided with a water breaking chimb.

Description

Machining center machine main shaft

Technical field:

The utility model relates to a kind of machine tool chief axis, particularly relates to a kind of machining center machine main shaft.

Background technology:

The machining center machine is in process, during the Tool in Cutting workpiece, will produce high temperature, temperature when reducing Tool in Cutting, usually all can use cutting fluid to reduce the temperature of cutter, but, high speed rotation during cutting, be easy to cause that cutting fluid steam and cutting enter the machining center machine and use main axle structure inside, thus, cause and damage the bearing of machining center machine with main shaft inside, end product makes the machining center machine with shortening in main shaft service life, and, influenced the carrying out of whole process, cause the generation of injury accident simultaneously easily.

Summary of the invention:

The purpose of this utility model is that a kind of improved machining center machine main shaft will be provided, it stops effectively in the time of not only realizing at high temperature carrying out machining that cutting fluid steam and cutting enter the machining center machine with in the main shaft, thereby has avoided the machining center machine to be damaged with the bearing in the main shaft.

Solution of the present utility model to achieve the above object is: a kind of machining center machine of the present utility model has a spindle drum with main shaft, be equiped with a main shaft in the described spindle drum, be equipped with whole group of broaching tool pawl that the shank of tool is housed in the described main shaft, one lower ball bearing is installed on the described main shaft successively, thrust bearing, upper ball bearing, belt pulley, be installed on a spindle drum loam cake on the end face of described spindle drum upper end, described spindle drum lower end surface is provided with a spindle drum lower cover, described main shaft lower end also is connected with a throw rijng on the end, one side of the end, lower end of described spindle drum is shaped on a spindle drum inlet channel, a side that covers under the described spindle drum also is provided with a spindle drum lower cover inlet channel, spindle drum inlet channel on described spindle drum lower cover inlet channel and the end, described spindle drum lower end interconnects, end, the lower end outer wall of described main shaft is provided with one " O " shape seal groove, the inwall of described throw rijng is provided with a groove, be embedded with one " O " shape sealing ring in the groove on the described throw rijng inwall, also be extended with a shade on the end face of described throw rijng, described throw rijng forms sealed attachment by " O " shape seal groove place on end, the lower end outer wall of " O " shape sealing ring and described main shaft and fixes, also be equiped with the spacer ring of an outer wall indention shape on the bottom of described main shaft, also be provided with the ditch of cutting off the water supply near the throw rijng place on the lower surface of described spindle drum lower cover.

Because the utility model has improved existing a kind of machining center machine main shaft; on the bottom of described main shaft, have additional the spacer ring of an outer wall indention shape; on the lower surface of described spindle drum lower cover, be equipped with the ditch of cutting off the water supply again near the throw rijng place; thereby on original structure, further strengthened the cutting fluid steam in the blocking-up working angles; cutting is invaded the machining center machine with in the main axle structure; protected the machining center machine to avoid damaging with the bearing of main shaft inside; prolonged the machining center machine greatly and used the service life of main shaft, and made the machining accuracy of process obtain effective guarantee.

Description of drawings:

Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.

Fig. 1 is the structural representation of machining center machine of the present utility model with main shaft.

The specific embodiment:

Below with reference to accompanying drawing machining center machine of the present utility model is described in further detail with main shaft.

Referring to Fig. 1, a kind of machining center machine of this utility model is made up of described main shaft (2), described spindle drum (1), described spindle drum loam cake (8) and described spindle drum lower cover (10) with main shaft.

End, the lower end outer wall of described main shaft (2) is provided with one " O " shape seal groove, the whole group of one described broaching tool pawl (3) is installed in the described main shaft (2), device has a described shank of tool (4) in the whole group of described broaching tool pawl (3), one described upper ball bearing (7) is installed on the described main shaft (2) successively, described thrust bearing (6), described lower ball bearing (5), described spacer ring (16), the outer wall indention shape of described spacer ring (16), described main shaft (2) is assemblied in the described spindle drum (1), the upper end end face of described spindle drum (1) and described spindle drum loam cake (8) form and are connected and fixed, the end, upper end of described main shaft (2) and described belt pulley (9) form and are fixedly connected, the lower end surface of described spindle drum (1) and described spindle drum lower cover (10) form and are connected and fixed, one side of the end, lower end of described spindle drum (1) is provided with a described spindle drum inlet channel (12), side on the described spindle drum lower cover (10) is provided with a described spindle drum lower cover inlet channel (13), the described spindle drum lower cover inlet channel (13) of described spindle drum lower cover is interconnected with the described spindle drum inlet channel (12) of described spindle drum (1) end, lower end, the inwall of described throw rijng (11) is provided with a groove, lay one " O " shape sealing ring (14) in the groove on described throw rijng (11) inwall, also be extended with a shade (15) on the end face of described throw rijng (11), " O " shape seal groove place on the outer wall of described throw rijng (11) and described main shaft (2) end, lower end forms sealed attachment and fixes, and locates also to be provided with a described ditch of cutting off the water supply (17) near throw rijng (11) on the lower surface of described spindle drum lower cover (10).

Machining center machine main shaft of the present utility model is to use under the cooperation of airtight scavenger system; airtight scavenger system is communicated with by the described spindle drum inlet channel (12) of pipeline with described spindle drum (1) end, lower end; airtight scavenger system starts when cutting; gas is by the spindle drum inlet channel (12) on described spindle drum (1) end, lower end; the described spindle drum lower cover inlet channel (13) that covers under the described spindle drum; enter then in the described main shaft (2); and between the throw rijng (11) of the end, lower end of described main shaft (2) and described main shaft (2) end, lower end, locate to form an air Curtain curtain; to lean on described throw rijng (11); air Curtain curtain and described spacer ring (16) stop cutting fluid steam and cutting to enter in the described main shaft (2) layer by layer; simultaneously; also cutting fluid steam of being put aside on the lower surface by the described spindle drum lower cover of blocking-up of the described ditch of cutting off the water supply (17) on the lower surface of described spindle drum lower cover (10) (10) and cutting enter in the described main shaft (2) by the gap between described throw rijng (11) and the described spindle drum lower cover (10); like this; not only repeat to set up defences; effectively to the protection of described main shaft (2); and prolonged service life of described main shaft (2) effectively; ensured normally carrying out of process fully, also changed simultaneously and lacked accidental damage.

Claims

1. machining center machine main shaft, it comprises spindle drum (1), main shaft (2) in the described spindle drum (1), the whole group of broaching tool pawl in the described main shaft (2) (3), the shank of tool (4) in the whole group of described broaching tool pawl (3), be assemblied in the lower ball bearing (5) on the main shaft (2) successively, thrust bearing (6), upper ball bearing (7), spindle drum loam cake (8) on the end face of spindle drum upper end, belt pulley (9) on the end, main shaft (2) upper end, spindle drum lower cover (10) on spindle drum (1) lower end surface, and the throw rijng (11) of main shaft (2) end, lower end, one side of described spindle drum (1) end, lower end is provided with a spindle drum inlet channel (12), one side of described spindle drum lower cover (10) also is provided with a spindle drum lower cover inlet channel (13) that communicates with the spindle drum inlet channel (12) of described spindle drum (1) end, lower end, end, the lower end outer wall of described main shaft (2) is provided with one " O " shape seal groove, also be provided with a groove that is used for settling " O " shape sealing ring (14) on the inwall of described throw rijng (11), be extended with a shade (15) on the end face of described throw rijng (11), described throw rijng (11) forms sealed attachment by " O " shape seal groove place on end, the lower end outer wall of " O " shape sealing ring (14) and described main shaft (2) and fixes, it is characterized in that also being equiped with on the bottom of described main shaft (2) spacer ring (16) of an outer wall indention shape, locate also to be provided with the ditch (17) of cutting off the water supply near throw rijng (11) on the lower surface of described spindle drum lower cover (10).