CN112296694A

CN112296694A - Swing shaft cavity built-in structure of machining center

Info

Publication number: CN112296694A
Application number: CN201910688605.7A
Authority: CN
Inventors: 范洪艳; 王正滨
Original assignee: Liaoning Vocational College of Light Industry
Current assignee: Liaoning Vocational College of Light Industry
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2021-02-02

Abstract

The invention discloses a swing shaft cavity built-in structure of a machining center, which belongs to the field of five-axis machining centers and comprises a lathe bed, wherein a chip removal port is formed in the top of the lathe bed, a stand column is fixedly connected to the right side of the top of the lathe bed, a cavity is formed in the stand column, a drag chain is fixedly installed on the right side of the stand column, a swing shaft is rotatably connected to the inner wall of the cavity, the right end of the swing shaft is matched with the drag chain, a rotating seat is fixedly connected to the left end of the swing shaft, a supporting seat is fixedly connected to the right side of the top of the lathe bed, a rotating seat is rotatably connected to the left side of the supporting seat, a rotating shaft is rotatably installed at the bottom of the rotating seat, penetrates through the rotating seat and is fixedly connected. The pipeline of the moving shaft and the rotating shaft is concealed in the cavity in the upright post, and the pipeline is not in a processing area, so that the pipeline is isolated from the cutting fluid, and the service life is not influenced.

Description

Swing shaft cavity built-in structure of machining center

Technical Field

The invention relates to the field of five-axis machining centers, in particular to a swinging shaft cavity built-in structure of a machining center.

Background

The five-axis linkage machining center is also called as a five-axis machining center, is a machining center which is high in technological content and precision and is specially used for machining complex curved surfaces, the machining center system has a very important influence on the national industries of aviation, aerospace, military, scientific research, precision instruments, high-precision medical equipment and the like, and at present, the five-axis linkage numerical control machining center system is the only means for solving the machining of impellers, blades, marine propellers, heavy generator rotors, steam turbine rotors, large diesel engine crankshafts and the like.

When the oscillating shaft works, pipelines of the oscillating shaft are arranged in a machining area to influence feeding and discharging, the oscillating shaft is not attractive, the pipelines are in long-term contact friction with cutting fluid, the service life of the pipelines is greatly influenced, the workbench is arranged above the XY drive, the distance from the ground is high, the operation worker is inconvenient to feed, and in addition, the rotating shaft and the oscillating shaft are mechanically superposed on the XY drive, so that the drives of four shafts are mutually influenced, and the high machining precision is difficult to achieve.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a swinging shaft cavity built-in structure of a machining center, which has the advantages that a swinging shaft pipeline is built in, the pipeline is not in a machining area, is isolated from cutting fluid, is not influenced in service life, is convenient to feed and discharge, and is beneficial to improving the overall assembly precision of a machine tool, and the problems that the swinging shaft pipeline is arranged in the machining area to influence feeding and discharging, the pipeline is contacted and rubbed with cutting fluid for a long time, the service life of the pipeline is greatly influenced, the loading of workers is inconvenient, the driving of four shafts is mutually influenced, and the higher machining precision is difficult to achieve are solved.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A chip removal port is formed in the top of the lathe bed, a stand column is fixedly connected to the right side of the top of the lathe bed, a cavity is formed in the stand column, a tow chain is fixedly mounted on the right side of the stand column, a swing shaft is rotatably connected to the inner wall of the cavity, the right end of the swing shaft is matched with the tow chain, a rotating seat is fixedly connected to the left end of the swing shaft, a supporting seat is fixedly connected to the right side of the top of the lathe bed, a rotating seat is rotatably connected to the left side of the supporting seat, a rotating shaft is rotatably mounted at the bottom of the rotating seat, penetrates through the rotating seat and is fixedly connected with a workbench, an X-axis ram is fixedly connected to the top of the stand column, an X-axis sliding table is slidably connected to the top of the X-axis ram, a Y-axis ram is slidably connected to the top of the X-axis sliding table, and a Z-axis ram, the bottom end of the Z-axis ram is fixedly connected with a main shaft.

Preferably, the shape of the chip removal port is square, and the chip removal port is positioned below the rotating seat.

Preferably, one side of the upright post is provided with heat dissipation holes, and the heat dissipation holes are communicated with the cavity.

Preferably, the bottom of the rotating seat is provided with a through hole, and the rotating shaft is located inside the through hole.

Preferably, the inner wall of X axle ram and X axle slip table all is provided with screw drive mechanism, screw drive mechanism is including the mounting panel, one side fixed mounting of mounting panel has servo motor, servo motor's output shaft runs through mounting panel and fixedly connected with lead screw, the equal fixedly connected with slider in bottom of X axle slip table and Y axle ram, the lead screw run through the slider and with slider threaded connection.

Preferably, the inner wall of the cavity is provided with a swinging shaft pipeline, two ends of the swinging shaft pipeline are respectively and fixedly connected with the drag chain and the swinging shaft, the inner wall of the swinging shaft is provided with a revolving shaft pipeline, and two ends of the revolving shaft pipeline are respectively and fixedly connected with the rotating shaft and the drag chain.

Preferably, the right side of the supporting seat is fixedly connected with a bearing seat, and the inner edge of the bearing seat is rotatably connected with the rotating seat.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) in the scheme, the swing shaft is parallel to the Y-axis ram in a processing area, the swing shaft and a revolving shaft pipeline are concealed in a cavity in the upright post, and various pipelines of the revolving shaft are connected to an external drag chain through the center of the swing shaft cavity; the pipeline of the oscillating shaft also passes through the external drag chain and is arranged by an external drag chain structure, the machine tool workbench does mechanical compound motion on the oscillating shaft and the rotating shaft, the pipeline is not in a processing area, so the pipeline is isolated from the cutting fluid, the service life is not influenced, a chip removal port is directly arranged below the workbench and directly discharges scrap iron in the processing process, and the oscillating shaft is hidden in the cavity, so that a better chip removal space at the bottom can be provided, the chip removal effect is better, and the processing area is spacious; because the workbench is independently placed through the oscillating shaft and the rotating shaft, the height from the ground can be designed to be comfortable, the loading and unloading are convenient, the XY motion of the bottom of the traditional rotary table is distributed on the upright post and is respectively decomposed into the longitudinal motion of the Y-axis ram and the transverse motion of the X-axis sliding table, the motion of the XY axis is independently removed, the precision of the oscillating shaft and the rotating shaft is better adjusted, and the improvement of the whole assembly precision of the machine tool is facilitated.

(2) The oscillating shaft cavity of the machining center is of a built-in structure, the scrap discharge port is directly arranged below the rotary seat, namely below the workbench, scrap iron can be directly discharged out of the machine tool from the scrap discharge port, and the machining center is more convenient to use.

(3) This machining center's swing axle intracavity hidden formula structure through setting up the louvre, makes the heat that the swing axle produced can distribute away from the louvre, avoids the inside high temperature of cavity, leads to the probably emergence of swing axle damage.

(4) The swinging shaft cavity of the machining center is of a hidden structure, the through hole provides a space for installing the rotating shaft, the rotating shaft can normally rotate, and the rotating shaft cannot be in contact with the inner wall of the through hole.

(5) This machining center's oscillating axle intracavity hides formula structure through lead screw drive mechanism, can make X axle slip table and Y axle ram homoenergetic realize the drive, during the drive, drives the lead screw by servo motor and rotates, and when the lead screw rotated, the slider slided along the lead screw direction, can make X axle slip table and Y axle ram can move, and the drive is independent separately, has improved the machining precision.

(6) According to the swing shaft cavity built-in structure of the machining center, the pipeline of the swing shaft and the pipeline of the rotary shaft are arranged inside the cavity, so that the pipelines are prevented from contacting with external cutting fluid, and the service life is longer.

(7) This machining center's oscillating axle intracavity hide formula structure has increased the workstation through the supporting seat and has supported the rigidity, and the bearing frame has played and has carried out spacing effect to the roating seat, makes the roating seat more stable when rotatory swing.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention.

The reference numbers in the figures illustrate:

1. a bed body; 2. a column; 3. a cavity; 4. a drag chain; 5. a swing shaft; 6. heat dissipation holes; 7. a rotating seat; 8. a supporting seat; 9. a rotating base; 10. a rotating shaft; 11. a rotary shaft line; 12. a work table; 13. an X-axis ram; 14. an X-axis sliding table; 15. a Y-axis ram; 16. a Z-axis ram; 17. a main shaft; 18. a screw drive mechanism; 181. mounting a plate; 182. a servo motor; 183. a screw rod; 184. a slider; 19. a swing axis line; 20. a chip removal port; 21. and a through hole.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-2, a swing shaft cavity built-in structure of a machining center comprises a machine body 1, a chip removal port 20 is formed at the top of the machine body 1, a vertical column 2 is fixedly connected to the right side of the top of the machine body 1, a cavity 3 is formed inside the vertical column 2, a drag chain 4 is fixedly installed at the right side of the vertical column 2, a swing shaft 5 is rotatably connected to the inner wall of the cavity 3, the right end of the swing shaft 5 is matched with the drag chain 4, a rotating seat 7 is fixedly connected to the left end of the swing shaft 5, a supporting seat 8 is fixedly connected to the right side of the top of the machine body 1, a rotating seat 9 is rotatably connected to the left side of the supporting seat 8, a rotating shaft 10 is rotatably installed at the bottom of the rotating seat 9, the rotating shaft 10 penetrates through the rotating seat 9 and is fixedly connected with a worktable 12, an X-axis ram 13 is fixedly connected to the top of the vertical column 2, the inner wall of the Y-axis ram 15 is connected with a Z-axis ram 16 in a sliding manner, and the bottom end of the Z-axis ram 16 is fixedly connected with a main shaft 17.

Furthermore, the shape of the chip removal port 20 is square, the chip removal port 20 is located below the rotary base 9, the chip removal port 20 is directly arranged below the rotary base 9, namely below the workbench 12, the iron chips can be directly discharged out of the machine tool from the chip removal port 20, and the use is more convenient.

Further, louvre 6 has been seted up to one side of stand 2, louvre 6 and cavity 3 intercommunication, through setting up louvre 6, the heat that makes swing shaft 5 produce can distribute away from louvre 6, avoids the inside high temperature of cavity 3, leads to the probably emergence of swing shaft 5 damage.

Further, the bottom of the rotary base 9 is provided with a through hole 21, the rotary shaft 10 is located inside the through hole 21, the through hole 21 provides a space for installing the rotary shaft 10, so that the rotary shaft 10 can normally rotate, and the rotary shaft 10 does not contact with the inner wall of the through hole 21.

Further, the inner walls of the X-axis ram 13 and the X-axis ram 14 are provided with screw rod transmission mechanisms 18, each screw rod transmission mechanism 18 comprises a mounting plate 181, a servo motor 182 is fixedly mounted on one side of the mounting plate 181, an output shaft of the servo motor 182 penetrates through the mounting plate 181 and is fixedly connected with a screw rod 183, the bottoms of the X-axis ram 14 and the Y-axis ram 15 are fixedly connected with a sliding block 184, and the screw rod 183 penetrates through the sliding block 184 and is in threaded connection with the sliding block 184.

Furthermore, the inner wall of the cavity 3 is provided with a swing shaft pipeline 19, two ends of the swing shaft pipeline 19 are respectively and fixedly connected with the drag chain 4 and the swing shaft 5, the inner wall of the swing shaft 5 is provided with a rotating shaft pipeline 11, two ends of the rotating shaft pipeline 11 are respectively and fixedly connected with the rotating shaft 10 and the drag chain 4, the swing shaft pipeline 19 and the rotating shaft pipeline 11 are both arranged inside the cavity 3, the pipelines are prevented from contacting with external cutting fluid, and the service life is longer.

Further, the right side fixedly connected with bearing frame of supporting seat 8, the inner edge of bearing frame is rotated with roating seat 9 and is connected, has increased the support rigidity of workstation 12 through supporting seat 8, and the bearing frame has played and has carried out spacing effect to roating seat 9, makes roating seat 9 more stable when rotatory swing.

The working principle is as follows: the swing shaft 5 is parallel to the Y-axis ram 15 in the processing area, the swing shaft 5 and a revolving shaft pipeline 11 are concealed in the cavity 3 in the upright post 2, and various pipelines of the revolving shaft pass through the center of the cavity 3 to the external drag chain 4; the oscillating shaft pipeline 19 also passes through the external drag chain 4 and is structurally arranged through the external drag chain 4, the machine tool workbench 12 does mechanical compound motion on the oscillating shaft 5 and the rotating shaft 10, the pipeline is not in a processing area, so the pipeline is isolated from the cutting fluid, the service life is not influenced, and a chip removal port 20 is directly arranged below the workbench 12; the scrap discharging port 20 directly discharges scrap iron in the machining process, and the swinging shaft 5 is concealed in the cavity 3, so that a better bottom scrap discharging space can be provided, the scrap discharging effect is better, and the machining area is spacious; because the workbench 12 is independently placed through the swinging shaft 5 and the rotating shaft 10, the height from the ground can be designed to be a comfortable height, the loading and unloading are convenient, the XY motion of the bottom of the traditional rotary table is distributed on the upright post 2 and is respectively decomposed into the longitudinal motion of the Y-axis ram 15 and the transverse motion of the X-axis sliding table 14, and the motion of the XY axes is independently removed, so that the precision of the swinging shaft 5 and the rotating shaft 10 is better adjusted, and the improvement of the whole assembly precision of the machine tool is facilitated.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a machining center's oscillating axle intracavity hide formula structure, includes lathe bed (1), its characterized in that: the chip removal device is characterized in that a chip removal port (20) is formed in the top of the lathe bed (1), a vertical column (2) is fixedly connected to the right side of the top of the lathe bed (1), a cavity (3) is formed in the vertical column (2), a drag chain (4) is fixedly mounted on the right side of the vertical column (2), a swing shaft (5) is rotatably connected to the inner wall of the cavity (3), the right end of the swing shaft (5) is matched with the drag chain (4), a rotating seat (7) is fixedly connected to the left end of the swing shaft (5), a supporting seat (8) is fixedly connected to the right side of the top of the lathe bed (1), a rotating seat (9) is rotatably connected to the left side of the supporting seat (8), a rotating shaft (10) is rotatably mounted at the bottom of the rotating seat (9), the rotating shaft (10) penetrates through the rotating seat (9) and is fixedly connected with a workbench (12), the top sliding connection of X axle ram (13) has X axle slip table (14), the top sliding connection of X axle slip table (14) has Y axle ram (15), the inner wall sliding connection of Y axle ram (15) has Z axle ram (16), the bottom fixedly connected with main shaft (17) of Z axle ram (16).

2. The oscillating shaft cavity concealed structure of a machining center according to claim 1, wherein: the chip removal port (20) is square, and the chip removal port (20) is positioned below the rotating seat (9).

3. The oscillating shaft cavity concealed structure of a machining center according to claim 1, wherein: one side of the upright post (2) is provided with heat dissipation holes (6), and the heat dissipation holes (6) are communicated with the cavity (3).

4. The oscillating shaft cavity concealed structure of a machining center according to claim 1, wherein: the bottom of the rotating seat (9) is provided with a through hole (21), and the rotating shaft (10) is positioned in the through hole (21).

5. The oscillating shaft cavity concealed structure of a machining center according to claim 1, wherein: the inner wall of X axle ram (13) and X axle slip table (14) all is provided with screw drive mechanism (18), screw drive mechanism (18) are including mounting panel (181), one side fixed mounting of mounting panel (181) has servo motor (182), the output shaft of servo motor (182) runs through mounting panel (181) and fixedly connected with lead screw (183), the equal fixedly connected with slider (184) in bottom of X axle slip table (14) and Y axle ram (15), lead screw (183) run through slider (184) and with slider (184) threaded connection.

6. The oscillating shaft cavity concealed structure of a machining center according to claim 1, wherein: the inner wall of the cavity (3) is provided with a swinging shaft pipeline (19), two ends of the swinging shaft pipeline (19) are fixedly connected with the drag chain (4) and the swinging shaft (5) respectively, the inner wall of the swinging shaft (5) is provided with a rotating shaft pipeline (11), and two ends of the rotating shaft pipeline (11) are fixedly connected with the rotating shaft (10) and the drag chain (4) respectively.

7. The oscillating shaft cavity concealed structure of a machining center according to claim 1, wherein: the right side fixedly connected with bearing frame of supporting seat (8), the inner edge and roating seat (9) of bearing frame rotate to be connected.