CN211540477U

CN211540477U - Nitrogen counterweight mechanism

Info

Publication number: CN211540477U
Application number: CN201922403383.8U
Authority: CN
Inventors: 邢威; 宗先广
Original assignee: Dongguan Baoke Precision Machinery Co ltd
Current assignee: Dongguan Baoke Precision Machinery Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-09-22
Anticipated expiration: 2029-12-27

Abstract

The utility model discloses a nitrogen counterweight mechanism, which comprises a stand column, wherein the front wall surface of the upper part of the stand column is provided with a vertical adjusting mechanism, a nose box is arranged on the vertical adjusting mechanism, a nitrogen counterweight cylinder is fixed on the top plate of the nose box, and the lower part of the nitrogen counterweight cylinder is inserted in the nose box; the top surface of the upright post is fixed with a balance weight support, and the top end of a push rod of the nitrogen balance weight cylinder is fixed on the bottom surface of a top plate of the balance weight support through a flexible joint. It stretches into the aircraft nose case with nitrogen gas counter weight jar to be in the below of counter weight support, thereby greatly reduced stand's height makes the lathe that adopts this stand structure can install in some suitable factory buildings, and need not to build new higher factory buildings in addition again, greatly reduced customer's cost.

Description

Nitrogen counterweight mechanism

The technical field is as follows:

the utility model relates to a machining makes technical field, and more specifically says and relates to a nitrogen gas counter weight mechanism.

Background art:

the nitrogen counterweight of the existing machining center is generally characterized in that a counterweight bracket is fixed on the top surface of a vertical column as shown in figure 1, a nitrogen counterweight cylinder is fixed on the top surface of the counterweight bracket, then the bottom end of a push rod of the nitrogen counterweight cylinder is fixed on the machine head box to ensure that when the machine head box is lifted, because the weight of the nose box is overweight, the nose box has an upward pulling force, the nose box is ensured to descend slowly, and the vertical screw rod and the like are not damaged because the nose box falls rapidly due to overweight, thereby further ensuring the normal operation of the lifting servo motor, however, the prior nitrogen counterweight cylinder is directly fixed above the counterweight bracket, the height of the stand column is greatly increased, the factory building requirements of customers need to be high enough, and therefore some customers can only rebuild a new factory building in order to use the machine tool, and the cost of the customers is greatly increased.

The utility model has the following contents:

the utility model aims at overcoming prior art's is not enough, provides a nitrogen gas counter weight mechanism, and it stretches into the aircraft nose case with nitrogen gas counter weight jar to be in the below of counter weight support, thereby the height of greatly reduced stand, make the lathe that adopts this stand structure can install in some suitable factory buildings, and need not to build new high higher factory building, greatly reduced customer's cost in addition again.

The utility model provides a technical problem's scheme is:

a nitrogen counterweight mechanism comprises a stand column, wherein a vertical adjusting mechanism is arranged on the front wall surface of the upper portion of the stand column, a nose box is mounted on the vertical adjusting mechanism, a nitrogen counterweight cylinder is fixed on a top plate of the nose box, and the lower portion of the nitrogen counterweight cylinder is inserted in the nose box;

the top surface of the upright post is fixed with a balance weight support, and the top end of a push rod of the nitrogen balance weight cylinder is fixed on the bottom surface of a top plate of the balance weight support through a flexible joint.

Vertical guide rails are fixed on the left side and the right side of the upper front wall surface of the upright post, and a vertical adjusting mechanism is arranged between the two vertical guide rails;

the vertical adjusting mechanism comprises a vertical screw rod, a bearing seat is arranged on the lower portion between the two vertical guide rails and fixed on the front wall surface of the stand column, a connecting plate is fixed on the front wall surface of the stand column on the upper portion between the two vertical guide rails, a lifting servo motor is fixed on the top surface of the connecting plate, the bottom end of the vertical screw rod is fixed on a bearing inner ring of the bearing seat, the top end of the vertical screw rod is hinged to the connecting plate through a bearing, the lifting servo motor drives the vertical screw rod to rotate, and a moving block fixed in the headstock is screwed on the vertical screw rod.

A plurality of sliding blocks are fixed on the left side and the right side of the rear wall surface of the nose box, and the vertical guide rails are inserted in sliding grooves formed in the rear wall surface of the sliding blocks.

The front part of the nose box is formed with a main box body.

And a nitrogen cylinder is fixed on the rear wall surface of the upright post, a connecting air pipe is communicated with a top control valve of the nitrogen cylinder, and the other end of the connecting air pipe is communicated with a nitrogen counterweight cylinder.

The vertical guide rail is a strip-shaped guide rail with an I-shaped section.

The rear wall surface of the upright post is fixed with a fixed seat, and the bottom surface of the nitrogen cylinder is pressed on the top surface of the fixed seat and fixed on the rear wall surface of the upright post.

The utility model discloses an outstanding effect is:

it stretches into the aircraft nose case with nitrogen gas counter weight jar to be in the below of counter weight support, thereby greatly reduced stand's height makes the lathe that adopts this stand structure can install in some suitable factory buildings, and need not to build new higher factory buildings in addition again, greatly reduced customer's cost.

Description of the drawings:

FIG. 1 is a partial schematic structural view of a conventional column;

fig. 2 is a partial structural schematic diagram of the present invention;

fig. 3 is a partial side view of the present invention;

fig. 4 is a partially enlarged view of fig. 2.

The specific implementation mode is as follows:

in the embodiment, as shown in fig. 2 to 4, a nitrogen counterweight mechanism comprises a vertical column 10, wherein a vertical adjusting mechanism 20 is arranged on the upper front wall surface of the vertical column 10, a head box 30 is installed on the vertical adjusting mechanism 20, a nitrogen counterweight cylinder 40 is fixed on the top plate of the head box 30, and the lower part of the nitrogen counterweight cylinder 40 is inserted in the head box 30;

the top surface of the upright post 10 is fixed with a counterweight bracket 11, and the top end of the push rod of the nitrogen counterweight cylinder 40 is fixed on the bottom surface of the top plate of the counterweight bracket 11 through a flexible joint 41. The flexible joint 41 may be a steel flexible joint which is a common structure and will not be described in detail

Further, vertical guide rails 12 are fixed on the left side and the right side of the upper front wall surface of the upright post 10, and a vertical adjusting mechanism 20 is arranged between the two vertical guide rails 12;

vertical adjustment mechanism 20 includes vertical screw 21, lower part between two vertical guide rails 12 is equipped with bearing frame 22, bearing frame 22 is fixed on the preceding wall of stand 10, be fixed with connecting plate 23 on the preceding wall of stand 10 on upper portion between two vertical guide rails 12, the top surface of connecting plate 23 is fixed with lift servo motor 24, the bottom mounting of vertical screw 21 is on the bearing inner race of bearing frame 22, the top of vertical screw 21 passes through the bearing and articulates on connecting plate 23, lift servo motor 24's output shaft is the integral key shaft, the integral key shaft plug bush is in the splined hole that the top of vertical screw 21 has, lift servo motor 24 drives vertical screw 21 and rotates, some movable blocks of internal fixation of headstock 30 are spiro union on vertical screw 21.

Meanwhile, in this embodiment, the lifting servo motor 24 may also be fixed on the front wall surface of the upright post 10, and the top end of the vertical screw 21 extends out of the connecting plate 23 and is connected with the output shaft of the lifting servo motor 24 through a coupler, so as to realize driving operation.

Further, a plurality of sliders 31 are fixed to both left and right sides of a rear wall surface of the head box 30, and the vertical guide rail 12 is inserted into a slide groove formed in the rear wall surface of the slider 31.

Further, a main body case 32 is formed at a front portion of the head case 30.

Further, a nitrogen gas bottle 1 is fixed on the rear wall surface of the upright post 10, a connecting gas pipe 2 is communicated with a top control valve of the nitrogen gas bottle 1, and the other end of the connecting gas pipe 2 is communicated with a nitrogen gas balance weight cylinder 40.

Further, the vertical guide rail 12 is a bar-shaped guide rail having an i-shaped cross section.

Further, a fixed seat 13 is fixed on the rear wall surface of the upright post 10, and the bottom surface of the nitrogen gas cylinder 1 is pressed against the top surface of the fixed seat 13 and fixed on the rear wall surface of the upright post 10.

In this embodiment, it is through adjusting the control valve on the nitrogen cylinder 1 to adjust the pulling force size of the push rod of nitrogen gas counter weight cylinder 40, make pulling force and aircraft nose case 30's weight balance mutually, thereby when making lift servo motor 24 move, aircraft nose case 30 goes up and down stably, stabilizes the machining precision, improves processingquality.

The above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.

Claims

1. The utility model provides a nitrogen gas counter weight mechanism, includes stand (10), its characterized in that: a vertical adjusting mechanism (20) is arranged on the front wall surface of the upper part of the upright post (10), a machine head box (30) is installed on the vertical adjusting mechanism (20), a nitrogen counterweight cylinder (40) is fixed on a top plate of the machine head box (30), and the lower part of the nitrogen counterweight cylinder (40) is inserted and sleeved in the machine head box (30);

the top surface of the upright post (10) is fixed with a counterweight support (11), and the top end of a push rod of the nitrogen counterweight cylinder (40) is fixed on the bottom surface of a top plate of the counterweight support (11) through a flexible joint (41).

2. A nitrogen counterweight mechanism as defined in claim 1, further comprising: vertical guide rails (12) are fixed on the left side and the right side of the upper front wall surface of the upright post (10), and a vertical adjusting mechanism (20) is arranged between the two vertical guide rails (12);

vertical adjustment mechanism (20) include vertical screw rod (21), lower part between two vertical guide rail (12) is equipped with bearing frame (22), bearing frame (22) are fixed on the preceding wall of stand (10), be fixed with connecting plate (23) on the preceding wall of stand (10) on upper portion between two vertical guide rail (12), the top surface of connecting plate (23) is fixed with lift servo motor (24), the bottom mounting of vertical screw rod (21) is on the bearing inner race of bearing frame (22), the top of vertical screw rod (21) is passed through the bearing and is articulated on connecting plate (23), lift servo motor (24) drive vertical screw rod (21) and rotate, the movable block spiro union that is fixed with in headstock (30) is on vertical screw rod (21).

3. A nitrogen counterweight mechanism as defined in claim 2, wherein: a plurality of sliding blocks (31) are fixed on the left side and the right side of the rear wall surface of the nose box (30), and the vertical guide rails (12) are inserted in sliding grooves formed in the rear wall surface of the sliding blocks (31).

4. A nitrogen counterweight mechanism as defined in claim 1, further comprising: a main box body (32) is formed at the front part of the nose box (30).

5. A nitrogen counterweight mechanism as defined in claim 1, further comprising: and a nitrogen cylinder (1) is fixed on the rear wall surface of the upright post (10), a connecting air pipe (2) is communicated with a top control valve of the nitrogen cylinder (1), and the other end of the connecting air pipe (2) is communicated with a nitrogen counterweight cylinder (40).

6. A nitrogen counterweight mechanism as defined in claim 2, wherein: the vertical guide rail (12) is a strip-shaped guide rail with an I-shaped section.

7. A nitrogen counterweight mechanism as defined in claim 5, wherein: a fixed seat (13) is fixed on the rear wall surface of the upright post (10), and the bottom surface of the nitrogen cylinder (1) is pressed on the top surface of the fixed seat (13) and fixed on the rear wall surface of the upright post (10).