阅读说明：本技术 一种卧式数控车床用底座及其运作方法 (Base for horizontal numerically controlled lathe and operation method thereof ) 是由 闫宏超 夏科军 廖应龙 于 2021-08-25 设计创作，主要内容包括：本发明提供了一种卧式数控车床用底座及其运作方法,包括呈壳状的座体,座体的顶面上设置平移工位和旋转工位,平移工位的下方座体内固设动力电机,动力电机的尾端固装散热排风扇,散热排风扇的排风口连接排风管,排风管的出风口开设于座体的侧壁上,旋转工位的顶面具有半圆弧凹槽,半圆弧凹槽内固装转轴箱,转轴箱的下半部圆筒体嵌入半圆弧凹槽中且与其槽壁之间余留U型空隙,转轴箱内呈转动穿接主轴,主轴的外端固连卡盘,动力电机的驱动轴与主轴之间通过传动组件相连。本发明底座内置散热排风系统,可降低底座因高温产生的热变形,从而提升机床的机械加工精度性能；转轴箱间隙环抱,使热量不易传递至底座上,减小两者因温升而产生的变形。(The invention provides a base for a horizontal numerically controlled lathe and an operation method thereof, wherein the base comprises a shell-shaped base body, a translation station and a rotation station are arranged on the top surface of the base body, a power motor is fixedly arranged in the base body below the translation station, a heat dissipation exhaust fan is fixedly arranged at the tail end of the power motor, an exhaust outlet of the heat dissipation exhaust fan is connected with an exhaust pipe, an air outlet of the exhaust pipe is arranged on the side wall of the base body, a semicircular groove is formed in the top surface of the rotation station, a rotating shaft box is fixedly arranged in the semicircular groove, a lower half cylinder of the rotating shaft box is embedded in the semicircular groove, a U-shaped gap is remained between the lower half cylinder and the wall of the rotating shaft box, a main shaft is rotatably connected in a penetrating manner in the rotating shaft box, the outer end of the main shaft is fixedly connected with a chuck, and a driving shaft of the power motor is connected with the main shaft through a transmission assembly. The base is internally provided with the heat dissipation and air exhaust system, so that the thermal deformation of the base caused by high temperature can be reduced, and the machining precision performance of a machine tool is improved; the rotating shaft box is surrounded by the gap, so that heat is not easy to transfer to the base, and deformation of the rotating shaft box and the base due to temperature rise is reduced.)

1. The utility model provides a horizontal base for numerical control lathe, is including the pedestal that is the shell form, its characterized in that, set up translation station and rotatory station on the top surface of pedestal, the below pedestal of translation station sets firmly motor power, motor power's tail end is adorned the heat dissipation exhaust fan admittedly, the exhaust pipe is connected to the air exit of heat dissipation exhaust fan, the air outlet of exhaust pipe is seted up in on the lateral wall of pedestal, the top surface of rotatory station has the semicircle recess, the semicircle recess internal fixation is adorned the pivot case, the lower half cylinder embedding of pivot case in the semicircle recess and rather than between the cell wall remain U type space, be the rotation cross-under main shaft in the pivot case, the outer end chuck of main shaft links firmly, motor power's drive shaft with link to each other through drive assembly between the main shaft.

2. The base for the horizontal numerically controlled lathe according to claim 1, wherein the transmission assembly includes a driving wheel, a transmission belt, and a driven wheel, the driving wheel is fixedly sleeved on the periphery of the driving shaft of the power motor, the driven wheel is fixedly sleeved on the periphery of the main shaft, and the transmission belt is sleeved on the peripheries of the driving wheel and the driven wheel in a tensioned state.

3. The base for the horizontal numerically controlled lathe according to claim 2, wherein a packing ring is fitted around an outer periphery of a drive shaft of the power motor, and the drive wheel is fitted around an outer periphery of the packing ring.

4. The base for the horizontal numerically controlled lathe according to claim 1, wherein two linear rails are symmetrically and fixedly arranged on the translation station, the linear rails are fixed on the base body through a plurality of screws, and the linear rails are arranged in parallel with the main shaft.

5. The base for the horizontal numerically controlled lathe according to claim 1, wherein an air outlet of the exhaust pipe is connected with a fixing plate through a hoop, the fixing plate is provided with a plurality of ventilation holes, the ventilation holes are communicated with the air outlet, and the fixing plate is fixed on a side wall of the base body through a plurality of screws.

6. The base for the horizontal numerically controlled lathe according to claim 1, wherein the power motor is fixed to a mounting plate by screws, and the mounting plate is fixed to a side wall of the base by screws.

7. The base for the horizontal numerically controlled lathe according to claim 1, wherein the heat dissipation exhaust fan is provided with an installation flange, and the installation flange is fixedly mounted on the tail end of the power motor through a plurality of screws.

8. The base for the horizontal numerically controlled lathe according to claim 1, wherein mounting platform edges are arranged on two sides of the semicircular arc groove, mounting bars are symmetrically and convexly arranged on two sides of the pivot box, and the mounting bars are correspondingly supported on the mounting platform edges and locked through bolts.

9. The method for operating the base of the horizontal numerically controlled lathe according to claim 1, comprising:

1) starting a power motor to enable a driving shaft of the power motor to rotate directionally and continuously, and driving a main shaft to rotate directionally and continuously through a transmission assembly so as to drive a chuck to rotate synchronously;

2) the power motor continuously generates heat in the running process, the heat dissipation exhaust fan is started to rotate, the heat generated by the power motor is continuously conveyed into the exhaust pipe through wind power and is further exhausted to the outside through the air outlet of the exhaust pipe, so that the timely heat dissipation is realized, the temperature of the power motor is reduced, and the influence on the precision of the machine tool caused by the deformation of the base body due to high temperature is prevented;

3) the spindle continuously generates heat in the operation process, and the heat generated by the spindle is dissipated outwards from the U-shaped gap due to the fact that the spindle box is half embedded into the base body and the gap is reserved between the spindle box and the base body, so that heat concentration in the spindle box is avoided, and the phenomenon that the spindle box deforms due to temperature rise to influence the performance of the machine tool is prevented.

10. The operating method of the base for the horizontal numerically controlled lathe according to claim 9, wherein in step 1), the driving shaft of the power motor rotates to drive the driving wheel on the driving shaft to rotate, the driving wheel transmits the rotating torque to the driving belt through friction, and the driving belt transmits the rotating torque to the driven wheel through friction, so that the driven wheel further drives the main shaft to rotate.

Technical Field

The invention belongs to the technical field of machinery, and relates to a lathe part, in particular to a base for a horizontal numerically controlled lathe and an operation method thereof.

Background

The numerical control lathe is a high-precision and high-efficiency automatic machine tool. The multi-station tool turret or the power tool turret is equipped, the machine tool has wide processing technology performance, can process complex workpieces such as linear cylinders, oblique line cylinders, circular arcs and various threads, grooves, worms and the like, has various compensation functions of linear interpolation and circular arc interpolation, and plays a good economic effect in the batch production of complex parts.

The existing heat dissipation system of the horizontal numerically controlled lathe is not perfect enough, so that heat generated by the operation of a motor cannot be dissipated in time, the base deforms due to unsmooth circulation of internal air and untimely heat dissipation, and the precision performance of the machine tool is affected. In addition, the existing spindle box is designed in an integral manner, the spindle box surrounds the spindle circumferentially, and the matching surface of the spindle box and the base is far away from the spindle, so that heat generated in the high-speed rotation process of the spindle is easily concentrated in the spindle box, the heat dissipation effect is poor, and the spindle box is deformed due to temperature rise to influence the performance of a machine tool.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a base for a horizontal numerically controlled lathe and an operation method thereof, wherein an active heat dissipation structure and a heat dissipation structure are arranged at a power machine, a passive heat dissipation space is arranged at a rotating shaft, and double heat dissipation is adopted to avoid temperature rise and deformation.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a horizontal base for numerical control lathe, is including the pedestal that is the shell form, set up translation station and rotatory station on the top surface of pedestal, the below pedestal of translation station sets firmly motor power, motor power's tail end is adorned the heat dissipation exhaust fan admittedly, the exhaust pipe is connected to the air exit of heat dissipation exhaust fan, the air outlet of exhaust pipe is seted up in on the lateral wall of pedestal, the top surface of rotatory station has the semicircle recess, semicircle recess internal fixation dress pivot case, the lower half cylinder embedding of pivot case in the semicircle recess and rather than between the cell wall surplus U type space, be the rotation cross-under main shaft in the pivot case, the outer end of main shaft links firmly the chuck, motor power's drive shaft with link to each other through drive assembly between the main shaft.

In the base for the horizontal numerically controlled lathe, the transmission assembly comprises a driving wheel, a transmission belt and a driven wheel, the driving wheel is fixedly sleeved on the periphery of a driving shaft of the power motor, the driven wheel is fixedly sleeved on the periphery of the main shaft, and the transmission belt is sleeved on the peripheries of the driving wheel and the driven wheel in a tensioning state.

In the base for the horizontal numerically controlled lathe, a driving shaft of the power motor is fixedly sleeved with a packing ring, and the driving wheel is fixedly sleeved with the periphery of the packing ring.

In the base for the horizontal numerically controlled lathe, two linear rails are symmetrically and fixedly arranged on the translation station, the linear rails are fixed on the base body through a plurality of screws, and the linear rails are parallel to the main shaft.

In foretell horizontal base for numerical control lathe, the air outlet of exhaust pipe passes through the staple bolt and connects the fixed plate, open a plurality of ventilation holes on the fixed plate, it is a plurality of the ventilation hole intercommunication the air outlet, the fixed plate is fixed in through a plurality of screws on the lateral wall of pedestal.

In the base for the horizontal numerically controlled lathe, the power motor is fixedly mounted on the assembly plate through screws, and the assembly plate is fixed on the side wall of the base body through screws.

In the base for the horizontal numerically controlled lathe, the heat dissipation exhaust fan is provided with an installation flange, and the installation flange is fixedly arranged at the tail end of the power motor through a plurality of screws.

In the base for the horizontal numerically controlled lathe, mounting platform edges are arranged on two sides of the semicircular arc groove, mounting strips are symmetrically and convexly arranged on two sides of the rotating shaft box, and the mounting strips are correspondingly supported on the mounting platform edges and locked through bolts.

The operation method of the base for the horizontal numerically controlled lathe comprises the following steps:

1) starting a power motor to enable a driving shaft of the power motor to rotate directionally and continuously, and driving a main shaft to rotate directionally and continuously through a transmission assembly so as to drive a chuck to rotate synchronously;

2) the power motor continuously generates heat in the running process, the heat dissipation exhaust fan is started to rotate, the heat generated by the power motor is continuously conveyed into the exhaust pipe through wind power and is further exhausted to the outside through the air outlet of the exhaust pipe, so that the timely heat dissipation is realized, the temperature of the power motor is reduced, and the influence on the precision of the machine tool caused by the deformation of the base body due to high temperature is prevented;

3) the spindle continuously generates heat in the operation process, and the heat generated by the spindle is dissipated outwards from the U-shaped gap due to the fact that the spindle box is half embedded into the base body and the gap is reserved between the spindle box and the base body, so that heat concentration in the spindle box is avoided, and the phenomenon that the spindle box deforms due to temperature rise to influence the performance of the machine tool is prevented.

In the operation method of the base for the horizontal numerically controlled lathe, in the step 1), the driving shaft of the power motor rotates to drive the driving wheel on the driving shaft to rotate, the rotating torque is transmitted to the transmission belt through the friction force driving wheel, and then the rotating torque is transmitted to the driven wheel through the transmission belt through the friction force, so that the driven wheel further drives the main shaft to rotate.

Compared with the prior art, the base for the horizontal numerically controlled lathe and the operation method thereof have the following beneficial effects:

1. the heat dissipation and exhaust system is arranged in the base, so that the thermal deformation of the base caused by high temperature can be reduced, and the machining precision performance of the machine tool is improved;

2. the base box type flat bed body structure reduces the processing reference during the processing of the base, thereby improving the machining precision grade of the base;

3. the base box type flat bed body structure can simplify the processing technology, is easier to process and has low cost;

4. the linear rail high-low rail structure of the base enables the linear rail to be convenient to assemble, saves the assembling time, and can improve the stress performance of the base and the cutting rigidity of a machine tool;

5. the rotating shaft box of the base is surrounded in a clearance mode, and the two sides of the rotating shaft box are supported, so that heat of the rotating shaft box is not easy to transfer to the base, and deformation of the rotating shaft box and the base due to temperature rise is reduced.

Drawings

FIG. 1 is a three-dimensional external structural view of the base for a horizontal numerically controlled lathe.

Fig. 2 is a sectional perspective view of the base for a horizontal numerically controlled lathe.

Fig. 3 is a side plan view of the pivot box in the bed for the horizontal numerically controlled lathe.

Fig. 4 is a front sectional view of the pivot box in the bed for the horizontal numerically controlled lathe.

In the figure, 1, a seat body; 2. a wire track; 3. a power motor; 4. a heat dissipation exhaust fan; 5. an exhaust duct; 6. hooping; 7. a fixing plate; 8. assembling a plate; 9. a tightening ring; 10. a drive wheel; 11. a drive belt; 12. a driven wheel; 13. a main shaft; 14. a pivot housing; 15. a chuck.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 4, the base for the horizontal numerically controlled lathe includes a shell-shaped base body 1, a translation station and a rotation station are arranged on the top surface of the base body 1, a power motor 3 is fixedly arranged in the base body 1 below the translation station, a heat dissipation exhaust fan 4 is fixedly arranged at the tail end of the power motor 3, an exhaust outlet of the heat dissipation exhaust fan 4 is connected with an exhaust pipe 5, an air outlet of the exhaust pipe 5 is arranged on the side wall of the base body 1, a semicircular groove is arranged on the top surface of the rotation station, a rotating shaft box 14 is fixedly arranged in the semicircular groove, a cylinder body at the lower half part of the rotating shaft box 14 is embedded in the semicircular groove, a U-shaped gap is left between the cylinder body and the wall of the semicircular groove, a main shaft 13 is rotatably connected in the rotating shaft box 14, a chuck 15 is fixedly connected at the outer end of the main shaft 13, and a driving shaft of the power motor 3 is connected with the main shaft 13 through a transmission assembly.

In the base for the horizontal numerically controlled lathe, a bearing is sleeved on the periphery of a main shaft 13 and is fixedly arranged in a rotary shaft box 14 through screws. The chuck 15 is fixed to the end of the spindle 13 by a plurality of screws.

The transmission assembly comprises a driving wheel 10, a transmission belt 11 and a driven wheel 12, wherein the driving wheel 10 is fixedly sleeved on the periphery of a driving shaft of the power motor 3, the driven wheel 12 is fixedly sleeved on the periphery of a main shaft 13, and the transmission belt 11 is sleeved on the peripheries of the driving wheel 10 and the driven wheel 12 in a tensioning state. The driving wheel 10 is fixed on the driving shaft of the power motor 3 through a plurality of screws, and the driven wheel 12 is fixed on the main shaft 13 through a plurality of screws.

The periphery of the driving shaft of the power motor 3 is fixedly sleeved with a packing ring 9, and the periphery of the packing ring 9 is fixedly sleeved with a driving wheel 10. The driving wheel 10 and the driving shaft form locking connection by sleeving the tightening ring 9 in the middle.

Two linear rails 2 are symmetrically and fixedly arranged on the translation station, the linear rails 2 are fixed on the seat body 1 through a plurality of screws, and the linear rails 2 are arranged in parallel with the main shaft 13.

The air outlet of exhaust pipe 5 passes through staple bolt 6 and connects fixed plate 7, opens a plurality of ventilation holes on the fixed plate 7, and a plurality of ventilation holes intercommunication air outlet, fixed plate 7 are fixed in on the lateral wall of pedestal 1 through a plurality of screws.

The power motor 3 is fixedly arranged on the assembling plate 8 through screws, and the assembling plate 8 is fixed on the side wall of the seat body 1 through screws.

The heat dissipation exhaust fan 4 is provided with an installation flange which is fixedly arranged at the tail end of the power motor 3 through a plurality of screws.

Mounting platform edges are arranged on two sides of the semicircular arc groove, mounting strips are symmetrically and convexly arranged on two sides of the rotating shaft box 14, and the mounting strips are correspondingly supported on the mounting platform edges and locked through bolts. The pivot housing 14 is of a split design, and includes an upper half cylinder and a lower half cylinder, and the upper half cylinder and the lower half cylinder are fastened to form a housing of the pivot housing 14, which is integrally cylindrical.

The operation method of the base for the horizontal numerically controlled lathe comprises the following steps:

1) starting the power motor 3 to enable a driving shaft of the power motor to rotate directionally and continuously, and driving the main shaft 13 to rotate directionally and continuously through the transmission assembly, so as to synchronously drive the chuck 15 to rotate;

2) the power motor 3 continuously generates heat in the operation process, the heat dissipation exhaust fan 4 is started to rotate, the heat generated by the power motor 3 is continuously conveyed into the exhaust pipe 5 through wind power, and further is exhausted to the outside through an air outlet of the exhaust pipe 5, so that the timely heat dissipation is realized, the temperature of the power motor 3 is reduced, and the influence on the precision of the machine tool caused by the deformation of the base body 1 due to high temperature is prevented;

3) the main shaft 13 continuously generates heat in the operation process, and because the rotating shaft box 14 is half embedded into the base body 1 and a gap is left between the rotating shaft box 14 and the base body 1, the heat generated by the main shaft 13 is outwards dissipated from the U-shaped gap, so that the heat concentration in the rotating shaft box 14 is avoided, and the influence of the temperature rise deformation on the machine tool performance of the rotating shaft box 14 is prevented.

Through the axle box 14 sinking into the base body 1, the matching surfaces of the axle box and the base body are close to the main shaft 13, and the U-shaped gap is arranged, so that heat generated by rotation of the main shaft 13 can be dissipated outwards from the U-shaped gap as soon as possible, and the over-high temperature of the axle box 14 is avoided.

In step 1), the driving shaft of the power motor 3 rotates to drive the driving wheel 10 on the driving shaft to rotate, the rotating torque is transmitted to the transmission belt 11 through the friction force driving wheel 10, and then is transmitted to the driven wheel 12 through the transmission belt 11 through the friction force, so that the driven wheel 12 drives the main shaft 13 to rotate.

Compared with the prior art, the base for the horizontal numerically controlled lathe and the operation method thereof have the following beneficial effects:

1. the heat dissipation and exhaust system is arranged in the base, so that the thermal deformation of the base caused by high temperature can be reduced, and the machining precision performance of the machine tool is improved;

2. the base box type flat bed body structure reduces the processing reference during the processing of the base, thereby improving the machining precision grade of the base;

3. the base box type flat bed body structure can simplify the processing technology, is easier to process and has low cost;

4. the linear rail 2 of the base is of a high-low rail structure, so that the linear rail 2 is convenient to assemble, the assembling time is saved, the stress performance of the base can be improved, and the cutting rigidity of a machine tool is improved;

5. the rotating shaft box 14 of the base surrounds in a clearance mode, and the two sides of the rotating shaft box are supported, so that heat of the rotating shaft box 14 is not easy to transfer to the base, and deformation of the rotating shaft box and the base caused by temperature rise is reduced.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although the housing 1 is used more herein; a wire rail 2; a power motor 3; a heat dissipation exhaust fan 4; an exhaust duct 5; a hoop 6; a fixed plate 7; a mounting plate 8; a packing ring 9; a drive wheel 10; a drive belt 11; a driven wheel 12; a main shaft 13; a pivot housing 14; chuck 15, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.