KR20130077293A

KR20130077293A - Machine tool having multiple spindle and table

Info

Publication number: KR20130077293A
Application number: KR1020110145923A
Authority: KR
Inventors: 이종언
Original assignee: 현대위아 주식회사
Priority date: 2011-12-29
Filing date: 2011-12-29
Publication date: 2013-07-09

Abstract

PURPOSE: A machine tool with multiple main shafts and multiple tables is provided to perform machining to the highest degree by utilizing the multiple main shafts and multiple tables in a machining process, thereby maximizing productivity. CONSTITUTION: A machine tool with multiple main shafts and multiple tables includes a bed (1), a saddle (2), a column (3), first and second tables (31,32), first and second main shafts (41,42), first and second magazines (51,52), a cover, and first and second door cylinders. The bed provides a supporting force. The saddle is assembled on the front end of the bed and transferred longitudinally in a Y-axis direction. The column is assembled on the top of the saddle as a rigid body. The first and second tables are moved horizontally in an X-axis direction above the saddle. The first and second main shafts are installed on the column and vertically moved in a Z-axis direction. The first and second magazines are attached to the column. The cover protects the first and second main shafts and the first and second magazines. The first and second door cylinders open/close the door of the cover.

Description

Machine tool having multiple spindle and table

The present invention relates to a machine tool having multiple spindles and multiple tables. More specifically, it is possible to maximize productivity by performing cutting operations to the maximum by using multiple spindles and multiple tables when cutting. And machine tools with multiple spindles and multiple tables.

A machine used for machining a metal or non-metal material to a shape and dimensions using appropriate tools, or for finer machining of a semi-finished material by various cutting or non-cutting methods is called a machine tool. Among the machine tools described above, a machine tool in which chips are generated in a machining process is called a cutting machine tool, and a non-cut machine tool in which chips are not generated in a machining process is called a metal machine. The cutting machine tools include lathes, milling machines, machining centers, drilling machines, boring machines, grinding machines, gear cutters, special machining machines, and the like. Bending machine, forging machine, drawing machine and the like.

Since cutting speeds are almost limited depending on the material of the workpiece in cutting machine tools for cutting, various non-cutting time reduction methods such as increasing the rotational speed of the spindle, improving the feed speed, and reducing the acceleration / deceleration time are required to improve productivity. Is carried out.

However, even with such a short cutting time, there is a limit to improving productivity.

An object of the present invention is to solve the conventional problems as described above, by using a plurality of spindles in the cutting process and by using a plurality of tables can be maximized productivity by performing the cutting process, multiple spindles And a machine tool having multiple tables.

As a means for achieving the above object, the configuration of the present invention includes a bed for providing support, birds that are assembled at the front end of the bed and transported back and forth in the Y direction, and as a rigid body on the top of the birds. A column to be assembled, a first table and a second table which move left and right in the X-axis direction from the top of the saddle, first and second spindles which are installed in the column and move up and down in the Z-axis; To protect the first magazine and the second magazine, and the first spindle, the second spindle, the first magazine, and the second magazine, which are attached to the column to replace the tools used in the first and second spindles. And a first door cylinder and a second door cylinder for opening and closing the door of the cover.

The configuration of the present invention is preferably provided with a motor and a ball screw for causing the above-mentioned first table and the second table to be conveyed along the X axis, and a guide for guiding the above-described conveyance.

In the configuration of the present invention, it is preferable that the first main axis is responsible for cutting feed as the main axis, and the second main axis is responsible for the respective tool length correction as the sub axis.

It is preferable that the configuration of the present invention be performed simultaneously with the first and second spindles described above.

In the configuration of the present invention, it is preferable that the above-mentioned main axis is assembled into two or more pieces depending on the processing form.

The configuration of the present invention is preferable if the tool changer capable of tool change is attached to each column on the side of the main shaft.

This invention has the effect of maximizing productivity by performing the cutting process to the maximum by using multiple spindles and multiple tables at the time of cutting.

1 is a block diagram of a machine tool having multiple spindles and multiple tables according to an embodiment of the present invention.
2 is a plan configuration diagram of a machine tool having multiple spindles and multiple tables according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the present invention. Other objects, features, and operational advantages, including the purpose, operation, and effect of the present invention will become more apparent from the description of the preferred embodiments.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory only and are not to be construed as limiting the scope of the invention as disclosed in the accompanying claims. It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and similarities, many of which are within the scope of the present invention. In addition, the terms or words used in the specification and claims herein should not be construed as being limited to the ordinary or dictionary meanings, and the inventors should properly explain the concept of terms in order to best explain their invention in the best way. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

1 is a front configuration diagram of a machine tool having multiple spindles and multiple tables according to an embodiment of the present invention, and FIG. 2 is a plan view of a machine tool having multiple spindles and multiple tables according to an embodiment of the present invention. It is a block diagram.

As shown in Figures 1 and 2, the configuration of a machine tool having a multi spindle and a multi-table according to an embodiment of the present invention, the bed (1) for providing a support force and the bed (1) (2) are assembled at one front of the front end and transported back and forth in the Y direction, a column (3) assembled as a rigid body on top of the saddle (2), and the X axis at the top of the saddle (2) The first table 31 and the second table 32 which move left and right in the direction, and the first main axis 41 and the second main axis 42 which are provided in the column 3 and move up and down in the Z axis. ), The first magazine 51 and the second magazine 52 attached to the column 3 for exchanging the tools used in the first spindle 41 and the second spindle 42, A cover 7 for protecting the first spindle 41, the second spindle 42, the first magazine 51, the second magazine 52, and an agent for opening and closing the door of the cover 7. 1 door room It comprise a further 61 and the second door cylinder 62.

Motors 21 and 22 and ball screws 22 and 24 for causing the first table 31 and the second table 32 to be conveyed along the X axis, and guides 27 for guiding the conveyance. ) Is installed.

The first main shaft 41 is responsible for cutting feed as a main axis, and the second main axis 42 is responsible for respective tool length correction as a sub axis.

The above-mentioned main shaft (41, 42) can be assembled into a plurality of two or more depending on the processing form.

On the side surfaces of the main shafts 41 and 42, magazines 51 and 52 which can be exchanged with tools are attached to the columns 3, respectively.

With the above configuration, the operation of the machine tool with multiple spindles and multiple tables according to an embodiment of the present invention is as follows.

The first spindle 41 and the second spindle 42 are fed in the vertical direction, the first spindle 1 forms the main spindle and the second spindle 42 is the frame of the first spindle 41 and Will form a separate feed shaft. The second main axis Z2 is determined as an axis for correcting the length error of the tool installed in the first main axis 41, and the second main axis Z2 is arranged so that the tool lengths of the first main axis 41 and the second main axis 42 coincide with each other. The motor driving the spindle 42 is stopped, and cutting is controlled by the feed shafts of the first spindle 41 and the second spindle 42. Even if the tool length (the length from the gauge line of the spindle to the tool tip) varies, the tool tip important in the Z axis has the same horizontal position of the first spindle 41 and the second spindle 42. This is to mass-produce the same workpieces and use the same purpose tools for this purpose.

The first table 31 and the second table 32 are conveyed along the X axis. The guides 27 supporting the linear conveyance are shared with the motors 21 and 23 and the ball screws 22 and 24 while sharing. The feed is controlled by each.

First, when the workpiece is installed in the first table 31 and moved to the cutting position 3a in the center, the second table 32 may cover the cover 7 to prevent scattering of the processing chip by the operation of the door cylinder 62. Open the door installed in the) and move to the workpiece set-up position.

When the first table 31 and the second table 32 are completely moved to generate a movement completion signal, the first spindle 41 is installed in the first table 31 and transferred to the cutting position 3a at the center. The processed workpiece is cut. In this case, the machining is performed by the first spindle 41 and the second spindle 42 at the same time, thereby performing cutting to the maximum.

In addition, the workpiece can be set up in the second table 32 during this cutting time, so that the setup work can be performed even at the time of cutting.

After the work of the workpiece installed on the first table 31 is completed, the first table 31 opens the door on the left side completely so that the second table 32 moves to the cutting position 3a in the center of the machine tool. When the movement complete signal is generated by the movement, the second table 32 is moved to the cutting position 3a to cut the workpiece provided in the second table 32. Even in this case, the machining is performed by the first spindle 41 and the second spindle 42 at the same time, thereby performing cutting to the maximum.

In addition, since the workpiece can be set up in the first table 31 during this cutting time, setup work can be performed even at the moment of cutting.

On the other hand, the saddle 2 which is in charge of the conveyance direction of another axis on the plane together with the 1st table 31 and the 2nd table 32 of an X-axis direction is a part which consists of an XY plane by conveying in the Y-axis direction In this case, the first spindle 41 and the second spindle 42 are positioned in a vertical direction to perform cutting.

As a result of the shortening of the setup time of the tool and the workpiece using the two spindles 41 and 42 and the two tables 31 and 32, cutting efficiency and productivity are up to four times higher than those of the general two-axis machine tool. You can expect an improvement. As the number of spindles 41 and 42 increases, productivity increases in proportion to the number of spindles, thereby maximizing productivity and reducing non-cutting time, thereby improving operating efficiency of machine tools.

1: Bed 2: Saddle
3: column 21.23: motor
22, 24: ballscrew 25, 26: bracket
27: guide 31, 32: table
41, 42: spindle 51, 52: magazine

Claims

A bed to provide support,
Saddle is assembled to the front end of the bed to be moved back and forth in the Y direction,
A column assembled as a rigid body on top of the birds,
A first table and a second table which move left and right in the X-axis direction from the top of the birds;
A first spindle and a second spindle installed in the column and moving up and down on the Z axis;
A first magazine and a second magazine attached to a column for exchanging a tool used in the first and second spindles,
A cover for protecting the first spindle, the second spindle, the first magazine, and the second magazine;
Machine tool having a multi spindle and a multi-table comprising a first door cylinder and a second door cylinder for opening and closing the door of the cover.

The method of claim 1,
Machine tool having a multi-spindle and a multi-table, characterized in that the motor and ball screw for the first table and the second table to be transported along the X axis, and the guide for guiding the transport is provided.

The method of claim 1,
Wherein said first spindle is responsible for cutting feed as a main axis and said second spindle is responsible for respective tool length correction as a sub-axis.

The method of claim 1,
A machine tool having multiple spindles and multiple tables, wherein machining is performed simultaneously by the first spindle and the second spindle.

The method of claim 1,
Machine tool with multiple spindles and multiple tables, characterized in that said spindle is assembled in two or more pieces depending on the processing type.

The method of claim 1,
A machine tool having multiple spindles and multiple tables on the side of said spindle, wherein a magazine capable of tool replacement is attached to the column.