CN210938111U

CN210938111U - Universal headstock rotating shaft structure of gantry

Info

Publication number: CN210938111U
Application number: CN201921947678.5U
Authority: CN
Inventors: 林清年
Original assignee: XIAMEN TAKAM MACHINERY CO Ltd
Current assignee: XIAMEN TAKAM MACHINERY CO Ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-07-07
Anticipated expiration: 2029-11-12

Abstract

The utility model discloses a universal headstock rotating shaft structure of a gantry, which comprises a swing headstock, a swing head fixing seat and a swing head rotating seat, wherein the lower end of the swing headstock is provided with a lower bearing seat, the swing head fixing seat is an upper bearing seat which can be disassembled at the upper end of the swing headstock, the swing head rotating seat is provided with a shaft cavity, and the swing head rotating seat is arranged between the upper bearing seat and the lower bearing seat; the rotating shaft structure also comprises a swinging head bolt, a swinging head dustproof cover plate, a bolt, a swinging head bearing cover, a tapered roller bearing and a swinging head rotating shaft, wherein the tapered roller bearing is respectively arranged at the bottom of the swinging head rotating shaft, at the top of the swinging head rotating seat and above the swinging head bearing cover; the swing head bearing gland is fixed above the swing head rotating seat in a threaded manner, and the swing head dustproof cover plate is fixed above the swing head fixing seat in a threaded manner. The utility model adopts the tapered roller bearing, which improves the flexibility of the universal headstock and improves the operability of the technical personnel; and a solid shaft is adopted, so that the bearing capacity of the universal headstock is improved.

Description

Universal headstock rotating shaft structure of gantry

Technical Field

The utility model relates to a universal headstock pivot structure of longmen.

Background

The gantry machining center is one of common large numerical control machines and is common equipment for machining large parts such as large beams, dies, supports and the like. Due to the heavy components, a universal headstock is added, which can carry the components required by the machine tool, such as a side milling head. As shown in fig. 1 to 4, in a conventional faucet universal head mount, a swinging head rotary base 5 'is directly mounted on a swinging head base 1', a swinging head fixing base 2 'is mounted on the swinging head base 1', a swinging head fixing base 2 'is then mounted, and a swinging head pin 4' is inserted into a position to be positioned. In the prior art, the rotation of the universal headstock is realized by the friction between iron and iron, the swing head fixing seat 2 'of the universal headstock is of a hollow structure, and only one swing head fixing shaft 3' is arranged above the swing head fixing seat, so that the universal headstock for assembling parts has the following defects:

(1) insufficient flexibility;

(2) the bearing capacity is limited, and the heavier the bearing part is, the more easily the swing head rotating seat vibrates, so that the product is collided, the surface is damaged, and the precision of the product is influenced;

(3) the heavier the placed component, the harder the rotation.

In view of the above defects, the applicant designs a spindle structure of a universal headstock of a gantry by years of industrial experience to achieve a more practical effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a omnipotent headstock pivot structure of longmen for bear the required spare part of lathe, can rotate in a flexible way, again can labour saving and time saving, and bearing capacity is strong.

In order to achieve the above object, the technical solution of the present invention is as follows:

a rotating shaft structure of a universal headstock of a gantry comprises a swinging headstock, a swinging head fixing seat and a swinging head rotating seat, wherein a lower bearing seat is arranged at the lower end of the swinging headstock, the swinging head fixing seat is an upper bearing seat which is detachable from the upper end of the swinging headstock, the swinging head rotating seat is provided with a shaft cavity, and the swinging head rotating seat is arranged between the upper bearing seat and the lower bearing seat;

the rotating shaft structure also comprises a swinging head bolt, a swinging head dustproof cover plate, a swinging head bearing cover, a bolt, a tapered roller bearing and a swinging head rotating shaft, wherein the tapered roller bearing is respectively arranged at the bottom of the swinging head rotating shaft, at the top of the swinging head rotating seat and above the swinging head bearing cover;

the swing head rotating shaft is a solid shaft, is arranged in a shaft cavity of the swing head rotating seat and is provided with an annular step surface at the bottom; the swing head bearing gland is fixed above the swing head rotating seat in a threaded manner, the swing head dustproof cover plate is fixed above the swing head fixing seat in a threaded manner, and the swing head bolt is installed on the swing head dustproof cover plate.

Preferably, the step surface at the bottom end of the rotating shaft of the swing head is used for placing a tapered roller bearing; a groove is formed at the top of the swing head rotating seat and used for placing a tapered roller bearing; the bearing gland of the swing head is provided with a boss which is used for fixing the tapered roller bearing.

Preferably, the lower bearing seat of the swinging head seat is integrally formed with the swinging head seat.

Preferably, the wobble head bearing pressure cover is built in the wobble head fixing base.

Preferably, the bolts are bolts with different specifications.

After the scheme is adopted, the utility model discloses a gain effect lies in:

1) the tapered roller bearing is adopted, so that the flexibility of the gantry universal head seat is improved, the gantry universal head seat is more labor-saving to rotate, the friction coefficient of a rotating shaft of the gantry universal head seat is reduced, even if heavy parts are placed on the gantry universal head seat, the gantry universal head seat cannot vibrate, and the precision of a product is ensured.

2) The traditional swing head fixing shaft structure is abandoned, and a solid rotating shaft structure is adopted, so that the bearing capacity of the gantry universal head seat is greatly enhanced.

3) The newly-added swing head dust cover can prevent dust from falling into the swing head rotating shaft, and avoids influencing the flexibility of the rotating shaft.

4) Simple structure, easy dismounting.

Drawings

FIG. 1 is a front view of a prior art universal head mount;

FIG. 2 is a schematic half-sectional view of a conventional universal headstock;

FIG. 3 is an exploded view of a conventional universal head mount;

FIG. 4 is an isometric view of a conventional universal head mount;

fig. 5 is a main view of the present invention;

FIG. 6 is a schematic half-section view of the present invention;

fig. 7 is an exploded schematic view of the present invention;

fig. 8 is a schematic axial view of the present invention.

Description of reference numerals:

the swing head comprises a swing head bolt 1, a swing head dustproof cover plate 2, a swing head fixing seat 3, a swing head bearing gland 4, a tapered roller bearing 5, a swing head seat 6, a swing head rotating shaft 7 and a swing head rotating seat 8.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor, as shown in fig. 5 to 8.

The utility model provides a universal headstock pivot structure of longmen, includes and sways the headstock, sways head fixing base, sways the head roating seat, the lower extreme that sways the headstock is equipped with the step, it is the detachable bolster bearing housing of swaying headstock upper end to sway the head fixing base, it is equipped with the axle chamber to sway the head roating seat, and sways the head roating seat and arrange in between the upper and lower bearing housing to realize the rotation of the universal headstock of longmen.

As shown in figure 7, the rotating shaft structure further comprises a swinging head bolt, a swinging head dustproof cover plate, a bolt, a swinging head bearing cover, a tapered roller bearing and a swinging head rotating shaft, wherein the tapered roller bearing is respectively arranged at the bottom of the swinging head rotating shaft, at the top of the swinging head rotating seat and above the swinging head bearing cover, the swinging head rotating shaft penetrates through a lower bearing seat of a swinging head seat from top to bottom and is arranged in a shaft cavity of the swinging head rotating seat, then the swinging head bearing cover is fixed above the swinging head rotating seat in a threaded manner, at the moment, the swinging head bearing cover is arranged in the swinging head fixing seat, the scheme abandons the structural mode that the universal head seat rotates through the friction of iron and iron in the prior art, reduces the friction among the swinging head rotating shaft, the swinging head fixing seat and the swinging head base by increasing the tapered roller bearing, reduces the friction coefficient and enables the swinging head rotating shaft, the operability of technicians is greatly improved.

In order to improve the bearing capacity of the gantry universal headstock, the swinging head rotating shaft is designed to be a solid shaft, the swinging head rotating shaft is arranged in a shaft cavity of the swinging head rotating seat, and the bottom of the swinging head rotating shaft is an annular step surface, so that the problem that a short plate with limited bearing capacity of the conventional universal headstock is overcome, and the precision of a product is improved.

The step surface at the bottom end of the rotating shaft of the swing head is used for placing a tapered roller bearing; a groove is formed at the top of the swing head rotating seat and used for placing a tapered roller bearing; swing head bearing gland and be equipped with a boss, the boss is used for fixed tapered roller bearing, makes tapered roller bearing drive through the design of structure and swings head fixing base, swing head bearing gland and swing the head pivot for the motion, promotes the flexibility of the omnipotent headstock of longmen by a wide margin, when placing heavier spare part, phenomenons such as card pause, vibrations can not appear, labour saving and time saving.

In addition, for avoiding impurity to fall into and sways first pivot, this embodiment will sway first dust cover board threaded fixation in rocking head fixing base top, sway first bolt cartridge on swaying first dust cover board.

In this embodiment, the lower bearing seat of the swinging head seat and the swinging head seat are integrally formed.

In this embodiment, each part in the revolving shaft structure of the universal headstock of the gantry is connected through bolts, and the bolts are bolts with different specifications.

According to the scheme, the tapered roller bearing is adopted to replace a traditional bolt structure, the flexibility of the gantry universal head seat is improved, meanwhile, the friction coefficient of a rotating shaft of the gantry universal head seat is reduced, the rotation is more labor-saving, even if heavier parts are placed on the gantry universal head seat, the phenomena of blocking, shaking and the like cannot occur, and the precision of a product is ensured. Meanwhile, the solid swing head rotating shaft is adopted to make up for a short plate of the conventional universal headstock, and the bearing capacity of the gantry universal headstock is enhanced. In addition, add and sway the head shield and prevent that the dust from falling into in the head pivot of swaying, avoid influencing the flexibility ratio of pivot.

The basic principles and main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a omnipotent headstock pivot structure of longmen, includes and sways the headstock, sways the head fixing base, sways the head roating seat, the lower extreme that sways the headstock is equipped with the step, it is the detachable bolster bearing housing of head fixing base upper end for swaying the headstock, it is equipped with the axle chamber to sway the head roating seat, and sways the head roating seat and arrange in between the upper and lower bearing housing, its characterized in that: the rotating shaft structure also comprises a swinging head bolt, a swinging head dustproof cover plate, a swinging head bearing cover, a bolt, a tapered roller bearing and a swinging head rotating shaft, wherein the tapered roller bearing is respectively arranged at the bottom of the swinging head rotating shaft, at the top of the swinging head rotating seat and above the swinging head bearing cover;

the swing head rotating shaft is a solid shaft, is arranged in a shaft cavity of the swing head rotating seat and is provided with an annular step surface at the bottom; the swing head bearing gland is fixed above the swing head rotating seat in a threaded manner, the swing head dustproof cover plate is fixed above the swing head fixing seat in a threaded manner, and the swing head bolt is inserted into the swing head dustproof cover plate.

2. The universal headstock spindle structure of the gantry of claim 1, wherein: the step surface at the bottom end of the rotating shaft of the swing head is used for placing a tapered roller bearing; a groove is formed at the top of the swing head rotating seat and used for placing a tapered roller bearing; the bearing gland of the swing head is provided with a boss which is used for fixing the tapered roller bearing.

3. The universal headstock spindle structure of the gantry of claim 1, wherein: the lower bearing seat of the swinging head seat and the swinging head seat are integrally formed.

4. The universal headstock spindle structure of the gantry of claim 1, wherein: the swing head bearing gland is arranged in the swing head fixing seat.

5. The universal headstock spindle structure of the gantry of claim 1, wherein: the bolts are a plurality of bolts with different specifications.