CN208542959U - A kind of tool machine spindle having dust guard - Google Patents

Abstract

The utility model discloses a kind of tool machine spindles for having dust guard, a kind of tool machine spindle having dust guard includes main shaft and main shaft mounting base, the main shaft is socketed in the main shaft mounting base, bearing is installed between the main shaft and main shaft mounting base, the bearing is fixedly mounted on inside the main shaft mounting base, the main shaft is threaded through on the bearing, protrusion is provided on the mounting base inner wall, the protrusion is equipped with rubber washer in the main shaft mounting base axial direction, bracing ring is installed on the rubber washer, the bracing ring is U-shaped structure, fixed ring is provided on the bracing ring, the fixed ring and the bracing ring are integrally formed, the fixed ring and the bracing ring are stuck on the end face of the main shaft mounting base, first sealing rubber ring is installed outside the bracing ring, first sealing It is fixedly installed with end cap on the outside of rubber ring, the threaded hole for axis is provided on the end cap and the first sealing rubber ring, bracing ring.

Description

A kind of tool machine spindle having dust guard

Technical field

The utility model relates to the tool machine structure technical fields of machining, more particularly to a kind of tool dust guard Tool machine spindle.

Background technique

The structure configuration of the rotary main shaft of existing machinery machining machine and tool includes the axis of a shaft, one to support shaft The drive motor of seat and a connection driving shaft；Wherein, axle bed is installed on inside the board of toolroom machine and is fixedly connected on drive Dynamic motor, shaft are rotatably installed on axle bed, and one end of shaft directly places the rotor for being fixed on drive motor, by driving Motor directly drives shaft rotation, and combines in the one end for being pierced by board and be equipped with a process tool.

To avoid in process, the foreign matters such as metal fines that turning liquid, dust and processing generate, which invade, be can be rotated Shaft and fixed axle bed between, and then influence shaft operating smoothness and safety, usually can be in shaft court One group of dust guard is set between outer processing end and axle bed.As shown in scheming and scheme, existing dust guard includes mutually abutting And an end cap and a dustproof cover that chamfered shape matches；Wherein, end cap is to be threaded into the open end of axle bed, and pushes against The bearing being set between shaft and axle bed；Dustproof cover is to be threaded into the processing end of shaft, and in dustproof cover towards end cap The annular groove that is embedded in for end cap of end face recessed one, the specification of annular groove is slightly larger than end cap, can reserve between end cap and dustproof cover One small―gap suture, to prevent not-go-end lid and dustproof cover interfere and generate contact friction.

Existing dust guard forms positive concave-convex matched waterproof together between dustproof cover and end cap, merely with annular groove Dust-proof mechanism, when long-term or a large amount of cooperation processing using turning liquid, the dust of turning liquid and its carrying still may have intrusion A possibility that inside axle bed, it is difficult to which optimized water proof and dust proof effect is provided.

If the gap between end cap and dustproof cover should reduce as much as possible, but be constrained to for water proof and dust proof consideration Following two factor causes the gap to be difficult to effectively reduce: (one) is to interfere and shadow when shaft being avoided to rotate with axle bed The smoothness of rotation is rung, which must be sufficiently large；(2) small foreign bodies such as cutting particles is avoided to invade the gap and block Dead phenomenon；(3) made by existing dust guard is formed with turnery processing, precision is subject to certain restrictions.Based on aforementioned items Factor, existing labyrinth dustproof device be set to the gap between end cap and dustproof cover end face direction about 0.15mm extremely Range of 0.5mm or so, when general operating is implemented, using centrifugal force and cyclogenesis, may also reach up normal operation and Dustproof and waterproof effect, but when cut environment it is more severe when, such as: the water of cutting fluid is excessive or hydraulic pressure is excessive or cutting particles When less than 0.15mm, existing dust guard is easy for that foreign matter penetration phenomenon occurs and pollutes bearing, is accumulating to after a certain amount of, just The problems such as bearing wear failure can occur and influence rotation smoothness.

Utility model content

The purpose of this utility model is to provide a kind of tool machine spindles for having dust guard, to solve to mention in background technique Out the problem of.To achieve the above object, the utility model provides the following technical solutions；

It is a kind of have dust guard tool machine spindle, it is described it is a kind of have dust guard tool machine spindle include main shaft and master Axis mounting base, the main shaft are socketed in the main shaft mounting base, and bearing, institute are equipped between the main shaft and main shaft mounting base It states bearing to be fixedly mounted on inside the main shaft mounting base, the main shaft is threaded through on the bearing, on the mounting base inner wall It is provided with protrusion, the protrusion is equipped with rubber washer in the main shaft mounting base axial direction, is equipped on the rubber washer Bracing ring, the bracing ring are U shape structure, and fixed ring, the fixed ring and the bracing ring one are provided on the bracing ring Body formed, the fixed ring and the bracing ring are stuck on the end face of the main shaft mounting base, peace outside the bracing ring Equipped with the first sealing rubber ring, end cap, the end cap and the first sealing rubber are fixedly installed on the outside of first sealing rubber ring It is provided with the threaded hole for axis on cushion rubber, bracing ring, bolt is bolted with inside the threaded hole by the end cap, the first sealing Rubber ring, bracing ring are fixed, and are installed in the fixed ring in the main shaft and are equipped with the second sealing rubber ring on seating face.

Preferably, external face blackout at the threaded hole has third sealing rubber ring, the third sealing Rubber ring is located inside the bolt.

Preferably, the bolt includes nut, threaded rod is equipped on the center of the nut, the nut is in the spiral shell The rubber ring mounting groove of annular is provided in the one side of rasp bar, after tightening the bolt, the third sealing rubber ring is located at Inside rubber ring mounting groove, the nut is provided with the 4th sealing rubber ring outside the third sealing rubber ring, and described Four sealing rubber rings and the concyclic heart of rubber ring mounting groove.

Preferably, the end cap and the gap of main reinforcement are arranged, and the end cap and the main shaft corresponding position are equipped with the Five sealing rubber rings.

Preferably, the gap of the 5th sealing rubber ring and the main shaft is 0.1mm.

Preferably, the gap of the fixed ring and the main shaft mounting base is 1mm.

Compared with prior art, the utility model has the beneficial effects that the utility model structure is simple, sealing effect is good, And convenient disassembly.

Detailed description of the invention

Fig. 1 is a kind of schematic cross-sectional view of tool machine spindle for having dust guard provided by the utility model；

Fig. 2 is a kind of structural schematic diagram of tool machine spindle for having dust guard provided by the utility model；

Fig. 3 is a kind of structural schematic diagram of the bolt of tool machine spindle for having dust guard provided by the utility model；

In figure: main shaft 1, main shaft mounting base 2, the second sealing rubber ring 3, end cap 4, bolt 5, nut the 51, the 4th seal rubber Cushion rubber 52, rubber ring mounting groove 53, threaded rod 54, raised 6, rubber washer 7, bracing ring 8, the first sealing rubber ring 9, fixed ring 10, seal coating 11, threaded hole 12, bearing 13, third sealing rubber ring 14.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical aspect in the utility model embodiment Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-Fig. 3 is please referred to, a kind of embodiment provided by the utility model:

It is a kind of have dust guard tool machine spindle, it is described it is a kind of have dust guard tool machine spindle include 1 He of main shaft Main shaft mounting base 2, the main shaft 1 are socketed in the main shaft mounting base 2, are installed between the main shaft 1 and main shaft mounting base 2 There is bearing 13, the bearing 13 is fixedly mounted on inside the main shaft mounting base 2, and the main shaft 1 is threaded through the bearing 13 On, it is provided with protrusion 6, described raised 6 on 2 inner wall of mounting base, rubber pad is installed in 2 axial direction of main shaft mounting base 7 are enclosed, bracing ring 8 is installed on the rubber washer 7, the bracing ring 8 is U-shaped structure, is provided on the bracing ring 8 solid Determine ring 10, the fixed ring 10 is integrally formed with the bracing ring 8, and the fixed ring 10 is stuck in institute with the bracing ring 8 On the end face for stating main shaft mounting base 2, the first sealing rubber ring 9, first sealing rubber ring are installed outside the bracing ring 8 9 outsides are fixedly installed with end cap 4, and the threaded hole for axis is provided on the end cap 4 and the first sealing rubber ring 9, bracing ring 8 12, the threaded hole 12 has seal coating 11, and bolt 5 is bolted with inside the threaded hole 12 by the end cap 4, first and seals rubber Cushion rubber 9, bracing ring 8 are fixed, in being equipped with the second sealing rubber ring on 2 surface of main shaft mounting base in the fixed ring 10 3。

In the present embodiment, 4 outer surface of end cap blackout at the threaded hole 12 has third sealing rubber ring 14, described Third sealing rubber ring 14 is located inside the bolt 5.

In the present embodiment, the bolt 5 includes nut 51, is equipped with threaded rod 54 on the center of the nut 51, described Nut 51 is described after tightening the bolt 5 in the rubber ring mounting groove 53 for being provided with annular in the one side of the threaded rod 54 Third sealing rubber ring 14 is located inside rubber ring mounting groove 53, and the nut 51 is set outside the third sealing rubber ring 14 It is equipped with the 4th sealing rubber ring 52, the 4th sealing rubber ring 52 and the concyclic heart of the rubber ring mounting groove 53.

In the present embodiment, the end cap 4 and 1 gap setting of main shaft, the end cap 4 and 1 corresponding position of main shaft 5th sealing rubber ring is installed.

In the present embodiment, the gap of the 5th sealing rubber ring and the main shaft 1 is 0.1mm.

In the present embodiment, the gap of the fixed ring 10 and the main shaft mounting base 2 is 1mm.

Although the utility model is described in detail with reference to the foregoing embodiments, come for those skilled in the art Say, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic into Row equivalent replacement, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all It is included within the scope of protection of this utility model.

Claims (6)

1. a kind of tool machine spindle for having dust guard, it is characterised in that: a kind of tool machine spindle packet for having dust guard Main shaft (1) and main shaft mounting base (2) are included, the main shaft (1) is socketed in the main shaft mounting base (2), the main shaft (1) and master It is equipped between axis mounting base (2) bearing (13), the bearing (13) is fixedly mounted on main shaft mounting base (2) inside, institute It states main shaft (1) to be threaded through on the bearing (13), be provided on mounting base (2) inner wall raised (6), described protrusion (6) edge It is equipped with rubber washer (7) in main shaft mounting base (2) axial direction, bracing ring (8), institute is installed on the rubber washer (7) Stating bracing ring (8) is U-shaped structure, is provided with fixed ring (10) on the bracing ring (8), the fixed ring (10) and the support (8) to be enclosed to be integrally formed, the fixed ring (10) and the bracing ring (8) are stuck on the end face of the main shaft mounting base (2), It is equipped with the first sealing rubber ring (9) outside the bracing ring (8), is fixedly installed on the outside of first sealing rubber ring (9) The threaded hole (12) for axis, institute are provided on end cap (4), the end cap (4) and the first sealing rubber ring (9), bracing ring (8) State threaded hole (12) the internal bolt (5) that is bolted with the end cap (4), the first sealing rubber ring (9), bracing ring (8) is fixed, institute It states in fixed ring (10) in being equipped with the second sealing rubber ring (3) on main shaft mounting base (2) surface.

2. a kind of tool machine spindle for having dust guard according to claim 1, it is characterised in that: the end cap (4) is outside Surface blackout at the threaded hole (12) has third sealing rubber ring (14), and the third sealing rubber ring (14) is located at described Bolt (5) is internal.

3. a kind of tool machine spindle for having dust guard according to claim 2, it is characterised in that: bolt (5) packet It includes nut (51), is equipped with threaded rod (54) on the center of the nut (51), nut (51) the Yu Suoshu threaded rod (54) One side on be provided with annular rubber ring mounting groove (53), after tightening the bolt (5), the third sealing rubber ring (14) be located at rubber ring mounting groove (53) it is internal, the is provided with outside nut (51) the Yu Suoshu third sealing rubber ring (14) Four sealing rubber rings (52), the 4th sealing rubber ring (52) and the concyclic heart of the rubber ring mounting groove (53).

4. it is according to claim 3 it is a kind of have dust guard tool machine spindle, it is characterised in that: the end cap (4) with Main shaft (1) gap setting, the end cap (4) and the main shaft (1) corresponding position are equipped with the 5th sealing rubber ring.

5. a kind of tool machine spindle for having dust guard according to claim 4, it is characterised in that: the 5th sealing rubber The gap of cushion rubber and the main shaft (1) is 0.1mm.

6. a kind of tool machine spindle for having dust guard according to claim 3, it is characterised in that: the fixed ring (10) Gap with the main shaft mounting base (2) is 1mm.