CN214867358U

CN214867358U - High-speed and high-precision six-axis boring and milling machine tool

Info

Publication number: CN214867358U
Application number: CN202121251026.5U
Authority: CN
Inventors: 向彬; 刘宗际; 匡峰; 兰军
Original assignee: Kunshan Huadu Seiko Precision Machinery Co ltd
Current assignee: Kunshan Huadu Seiko Precision Machinery Co ltd
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2021-11-26
Anticipated expiration: 2031-06-04

Abstract

The utility model relates to the technical field of machine tools, and a six high-speed, high-accuracy boring and milling machine tool is disclosed, it includes the bed body, the top fixedly connected with stand of the bed body, the stand rotates with one side of perpendicular to the ground and is connected with the plate body that is fan-shaped structure and is vertical direction, one side centre of a circle department fixed mounting that the stand was kept away from to the plate body has the boring cover that is horizontal axial and central axis and plate body looks vertically, boring cover internally mounted has rather than the main shaft that is located the coaxial line, just the inner wall of boring cover is paintd and is used for carrying out the coolant liquid that cools down to the main shaft surface. The utility model discloses a plate body that sets up on the stand, the A axle of main shaft is adjusted through the plate body that rotates fan-shaped structure, compares traditional disc structure A axle guide rail design, and the radius of gyration size is big, under the same condition between gear ring gear meshing, the gyration precision is higher, satisfies part high accuracy requirement.

Description

High-speed and high-precision six-axis boring and milling machine tool

Technical Field

The utility model belongs to the technical field of the lathe, specifically be a high-speed, high-accuracy six boring and milling lathe.

Background

The numerical control rotary platform and the main shaft of the existing six-axis automatic boring and milling machine tool can realize relative movement in three directions of XYZ axes, meanwhile, the numerical control rotary platform can rotate around a central shaft, a main shaft box can do A-axis rotary movement and B-axis rotary movement, and the main shaft can do front-back feeding W-axis movement.

However, the spindle of the existing six-axis machine tool adopting the boring bar type spindle is not easy to control temperature rise when in work, so that the rotating speed of the spindle is limited, the temperature rise can greatly influence the precision, meanwhile, the spindle and the rotating shaft are positioned at the symmetrical center positions of the spindle and the rotating shaft, the distance between the cutter cutting head and the rotating center is large, the structure rigidity is weak, and the rotating precision greatly influences the machining precision, so that the six-axis boring and milling machine tool with high speed and high precision is designed to solve the problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems in the prior art, the utility model provides a high-speed and high-precision six-axis boring and milling machine.

In order to achieve the above object, the utility model provides a following technical scheme: the high-speed and high-precision six-axis boring and milling machine tool comprises a bed body, wherein a stand column is fixedly connected to the top of the bed body, a plate body which is of a fan-shaped structure and is in a vertical direction is rotatably connected to one side, perpendicular to the ground, of the stand column, a boring sleeve which is in a horizontal axial direction and is vertical to the plate body and the central axis is fixedly mounted at the circle center of one side, away from the stand column, of the plate body, a spindle which is coaxial with the boring sleeve is mounted inside the boring sleeve, and cooling liquid used for cooling the surface of the spindle is smeared on the inner wall of the boring sleeve.

Furthermore, a spindle box is fixedly installed on one side, far away from the stand column, of the plate body, and the boring sleeve is fixedly inserted on the spindle box.

Further, the cooling liquid comprises constant-temperature cooling oil, and the constant-temperature cooling oil is located between the inner wall of the boring sleeve and the surface of the spindle.

Furthermore, the spindle box is provided with two pressing plates respectively positioned at two sides of the boring sleeve and a clamping mechanism for enabling the two pressing plates to be close to or far away from each other.

Furthermore, the clamping mechanism comprises two hydraulic oil cylinders which are fixedly arranged on the upper side and the lower side of the main spindle box respectively, and piston rods of the two hydraulic oil cylinders are close to each other and are fixedly connected with corresponding pressing plates.

Furthermore, the clamping mechanism comprises two electric push rods which are fixedly arranged on the upper side and the lower side of the spindle box respectively, and piston rods of the two electric push rods are close to each other and fixedly connected with the corresponding pressing plates.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a plate body that sets up on the stand adjusts the A axle of main shaft through the plate body of rotating fan-shaped structure, compares traditional disc structure A axle guide rail design, and the radius of gyration size is big, under the same gear ring gear meshing condition, the gyration precision is higher, and the rotatory center of main shaft also can antedisplacement, under the same condition of radius of gyration, because the antedisplacement of centre of rotation, makes the distance of cutter to centre of gyration reduce, and the moment of torsion reduces to improve the precision; meanwhile, the spindle is arranged in the boring sleeve, when the boring sleeve with a larger diameter moves as a W shaft, the extension deflection deformation of the boring sleeve is small, the cooling liquid can take away the generated heat in time when the spindle rotates at a high speed, the thermal extension of the boring sleeve is small, the spindle in the boring sleeve can also realize a larger rotating speed, and the high-precision requirement of parts is met.

2. The utility model discloses a clamping mechanism who sets up on the headstock makes two clamp plates be close to each other and press from both sides the main shaft tightly, promotes the anti vibration performance in the machine tool course of working, improves the precision of processing.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic plan view of the present invention;

FIG. 3 is an exploded view of the spindle box of the present invention;

in the figure: 1. a bed body; 2. a column; 3. a plate body; 4. boring a sleeve; 5. a main shaft; 6. a main spindle box; 7. a clamping mechanism; 71. a hydraulic cylinder; 72. and (7) pressing a plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the high-speed and high-precision six-axis boring and milling machine tool provided by the present embodiment includes a bed body 1, a column 2 is fixedly connected to the top of the bed body 1, a plate 3 having a fan-shaped structure and a vertical direction is rotatably connected to one side of the column 2 perpendicular to the ground, a boring sleeve 4 having a horizontal axial direction and a central axis perpendicular to the plate 3 is fixedly installed at a center of a circle of one side of the plate 3 away from the column 2, a spindle 5 located coaxially with the boring sleeve 4 is installed inside the boring sleeve, and a cooling liquid for cooling the surface of the spindle 5 is applied to the inner wall of the boring sleeve 4, so that the axis a of the spindle 5 is adjusted by rotating the plate 3 having the fan-shaped structure, compared with the conventional design of the axis guide rail having the disc-shaped structure, the size of the turning radius is large, the turning precision is higher under the condition of the same gear ring meshing, and the rotation center of the spindle 5 also moves forward, under the condition of the same radius of gyration, because the centre of rotation moves forward, the distance from the cutter to the centre of gyration is reduced, the torque is reduced, thus improve the precision, meanwhile, the main shaft 5 is arranged in the boring sleeve 4, when the boring sleeve 4 with larger diameter moves as the W axis, the extension deflection deformation is small, when the main shaft 5 rotates at high speed, the cooling liquid can take away the generated heat in time, the thermal extension of the boring sleeve 4 is small, the main shaft 5 in the boring sleeve 4 can also realize larger rotation speed, meet the high precision requirement of the parts.

Referring to fig. 2, a spindle box 6 is fixedly installed on one side of the plate body 3 away from the column 2, and the boring sleeve 4 is fixedly inserted into the spindle box 6.

Specifically, the cooling liquid comprises constant-temperature cooling oil, and the constant-temperature cooling oil is located between the inner wall of the boring sleeve 4 and the surface of the spindle 5, so that heat generated by the linear motion of the spindle 5 in the boring sleeve 4 is conducted to the constant-temperature cooling oil, and the temperature of the spindle 5 is controlled.

In order to reduce the vibration of the spindle 5 during operation and to improve the accuracy of the spindle 5, it is proposed in some embodiments that the spindle head 6 is provided with two pressure plates 72 respectively located on both sides of the boring bar 4 and a clamping mechanism 7 for moving the two pressure plates 72 toward and away from each other.

Referring to fig. 3, the clamping mechanism 7 includes two hydraulic cylinders 71 respectively and fixedly installed on the upper and lower sides of the spindle box 6, and the piston rods of the two hydraulic cylinders 71 are close to each other and fixedly connected to the corresponding pressing plates 72, so that the two pressing plates 72 can clamp the spindle 5 by the extension and contraction of the piston rods of the hydraulic cylinders 71.

Meanwhile, as another scheme for enabling the two pressing plates 72 to approach or be far away from each other, the clamping mechanism 7 includes two electric push rods fixedly installed on the upper and lower sides of the spindle box 6, and piston rods of the two electric push rods approach each other and are fixedly connected with the corresponding pressing plates 72, and the two pressing plates 72 can approach each other and clamp the spindle 5 by the expansion and contraction of the piston rods of the electric push rods, so that the vibration resistance in the machining process of the machine tool is improved.

In the device, all electric devices and drivers matched with the electric devices are arranged at the idle position, and all driving parts, namely power elements, the electric devices and adaptive power supplies, are connected through leads by a person skilled in the art, and specific connecting means refer to the above expression that the electric devices are electrically connected in sequence, and detailed connecting means thereof are well known in the art.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high-speed, high-accuracy six-axis boring and milling machine tool, includes the bed body (1), its characterized in that, the top fixedly connected with stand (2) of the bed body (1), stand (2) rotate with one side perpendicular to the ground and are connected with plate body (3) that are fan-shaped structure and be vertical direction, one side centre of a circle department fixed mounting that stand (2) were kept away from in plate body (3) is horizontal axial and the central axis and is with plate body (3) looks vertically boring cover (4), boring cover (4) internally mounted have rather than lie in coaxial main shaft (5), just the inner wall of boring cover (4) is paintd and is used for carrying out the coolant liquid that cools down to main shaft (5) surface.

2. The high-speed and high-precision six-axis boring and milling machine tool is characterized in that a spindle box (6) is fixedly mounted on one side, away from the upright post (2), of the plate body (3), and the boring sleeve (4) is fixedly inserted on the spindle box (6).

3. A high speed, high precision six axis bore milling machine according to claim 1 wherein the coolant comprises a constant temperature coolant oil and the constant temperature coolant oil is located between the inner wall of the boring sleeve (4) and the surface of the main shaft (5).

4. A high-speed, high-precision six-axis boring and milling machine according to claim 2, characterized in that the headstock (6) is provided with two pressure plates (72) respectively located on both sides of the boring sleeve (4) and a clamping mechanism (7) for moving the two pressure plates (72) toward and away from each other.

5. The high-speed and high-precision six-axis boring and milling machine tool is characterized in that the clamping mechanism (7) comprises two hydraulic oil cylinders (71) which are fixedly arranged on the upper side and the lower side of the main spindle box (6) respectively, and piston rods of the two hydraulic oil cylinders (71) are close to each other and are fixedly connected with corresponding pressing plates (72).

6. The high-speed and high-precision six-axis boring and milling machine tool is characterized in that the clamping mechanism (7) comprises two electric push rods which are fixedly arranged on the upper side and the lower side of the main spindle box (6) respectively, and piston rods of the two electric push rods are close to each other and fixedly connected with corresponding pressure plates (72).