KR100441223B1 - Vertical Machining Center - Google Patents

Abstract

The present invention relates to a vertical machining center, and more particularly, to a vertical machining center which includes a plurality of beams vertically installed at a corner of a top surface of a bed having a stationary table, A frame having left and right linear guide surfaces, a ball screw, and a driving motor on an upper surface of the beam; A conveying column having a linear guide surface, a ball screw, and a driving motor on an inner surface of the frame so as to perform a left-right transfer of the main shaft; A saddle connected to a ball screw of the conveying column and having a linear guide surface in a vertical direction, a ball screw, and a driving motor for moving the main shaft forward and backward; A transfer head having a main shaft projected on a bottom surface to move to a table spaced downwardly along a straight guide surface of the saddle, and an automatic tool changer provided on one side of the table, It is possible to simplify the processing of the byproducts (chips, cutting oil, etc.) generated in operation and to prevent the byproducts from flowing into the conveying system by means of the outflow, thereby preventing the mechanical damage, .

Further, it is possible to achieve a simplified installation of the machine as a whole through securely securing the machining area, and to stably install the automatic tool changer.

Description

{Vertical Machining Center}

The present invention relates to a vertical machining center, and more particularly to a vertical machining center in which various transporting means for moving the position of the workpiece in the forward, backward, left and right directions are installed at a height higher than the position where the workpiece is placed, It facilitates the treatment of by-products (chip, cutting oil, etc.) generated in the machine operation of the center and prevents the byproducts from flowing into the transfer means, thereby preventing mechanical breakage, .

Furthermore, it is possible to secure the stability of the machining area, thereby simplifying the machine construction as a whole and securing the stabilization of the tool change.

A generally used vertical machining center is provided with a bed 12 for stable balance and support under the machining center 10 as shown in the accompanying drawings 1 and 2, A carriage 20 which moves in the forward and backward directions along the linear guide surface 18 by the rotation of the ball screw 16 driven by the drive motor 14 is provided on the upper surface of the carriage 20, A table 28 is provided on the upper surface so as to move horizontally to the left and right along the linear guide surface 26 by the rotation of the ball screw 24 driven by another drive motor 22. [

In other words, coordinate values of a specific position are transferred while being horizontally moved forward and backward of the carriage 20 and in the left and right planes of the table 28 on which the workpiece is placed, and the machining position of the workpiece is selected accordingly .

A fixed column 32 having a linear guide surface 30 in a vertical direction is provided on the other side of the bed 12. A conveyance head 34 mounted vertically to the fixed column 32, The transfer head 34 is provided so as to move in the vertical direction by the operation of the drive motor 36 and the ball screw 38 provided separately. 42 are rotated by the rotation of the spindle motor 44.

Therefore, after the workpiece is positioned and fixed on the table 28, the carriage 20 moves in the forward and backward directions, and the table 28 moves in the left and right directions to select the machining position of the workpiece.

At the same time, the tool 40 mounted on the main shaft 42 of the transfer head 34 is rotated by driving of the main shaft motor 44 and is moved vertically and downward along the fixed column 32 Thereby performing the machining of a typical workpiece.

At this time, the automatic tool changer 46 mounted on the side of the fixed column 32 moves the tool 40 mounted on the main shaft 42 and the tool 40 when the transfer head 34 reaches the predetermined tool 40 exchange position And performs the general role and operation of exchanging the tools 40 stored in the automatic tool changer 46 at the same time.

(10) When the workpiece is moved in the forward, backward, left, and right directions of the machining center (10), the machining center (10) Chips or processing byproducts or cutting oil or the like generated at the time of processing the workpiece are positioned above the mounting position of the carriage 20 and the table 28 moved by the carriage 20 and the table 28, There is a problem in that a separate protective cover and a sealing process are required to prevent the infiltration into the conveying system parts for moving the door 32. [

Further, when the space is limited to the installation space of the machining center 10, restrictions are imposed on the protective cover and the sealing process, which are provided to prevent the inflow of the byproducts, so that difficulties arise in the processing of chips and cutting oil processing byproducts, Due to such a structure, the installation of the automatic tool changer 46 also has to be installed in the vertical direction to the fixed column 32, which causes a problem that the balance is unstable as a whole.

When the processing byproducts flow into the carriage 20 and the conveying system of the table 28 and the stationary column 32, the carriage 20 and the table 28 are not smoothly conveyed, As a result, not only the machining accuracy is reduced but also the maintenance cost due to the operation of the equipment is increased due to severe wear.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a transfer system for transferring a position of a workpiece in forward, backward, leftward and rightward directions to a position higher than a position where the workpiece is placed (Chips, cutting oil, etc.) generated in the machine operation of the vertical machining center can be easily handled and the byproducts can be prevented from flowing into the transfer means, And to reduce the cost of the system.

Further, the stable machining area can be secured to simplify the machine construction as a whole, and the installation and stabilization of the automatic tool changer can be improved.

1 is a front view showing a conventional vertical machining center

Fig. 2 is a side view of Fig.

3 is a front view showing a vertical machining center of the present invention

Figure 4 is a side view of Figure 3

Description of the Related Art

10,50: Machining center 12,52: Bed

14, 22, 36, 60, 70, 78: drive motors 16, 24, 38, 58, 68, 76:

18, 26, 30, 56, 66, 74: straight guide surface 20:

28,82: Table 32: Fixed column

34, 80: Feed head 40: Tool

42: main shaft 44: main shaft motor

46,84: Automatic exchange device 54: Beam

62: Frame 64: Feed column

72: Birds

According to another aspect of the present invention, there is provided a bed comprising: a fixed table; a plurality of beams vertically installed at a corner of a top surface of the bed; A frame having left and right linear guide surfaces, a ball screw, and a driving motor on an upper surface of the beam; A conveying column having a linear guide surface, a ball screw, and a driving motor on an inner surface of the frame so as to perform a left-right transfer of the main shaft; A saddle connected to a ball screw of the conveying column and having a linear guide surface in a vertical direction, a ball screw, and a driving motor for moving the main shaft forward and backward; A transfer head having a main shaft projected on a bottom surface thereof so as to move to a table spaced downwardly along a straight guide surface of the saddle and an automatic tool changer provided on one side of the table horizontally spaced apart, (Chips, cutting oil, etc.) can be easily processed, and byproducts can be prevented from flowing into the conveying means, thereby preventing mechanical breakage and reducing the cost of maintenance and maintenance. .

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.

FIGS. 3 and 4 are views showing a vertical machining center of the present invention. The same reference numerals as those of FIGS. 1 and 2 denote the same parts. Only differences from FIG. 2 will be described.

Referring to FIGS. 3 and 4, four beams 54, each having a predetermined length, are vertically installed on the upper surface of the vertical machining center 50, And a frame 62 provided with a linear guide surface 56 of the main shaft 42 and a ball screw 58 and a drive motor 60. A box-shaped transfer column 64) are installed.

A linear guide surface 66 in the forward and backward direction, a ball screw 68 and a drive motor 70 are mounted on the inner side surface of the conveying column 64. A spindle 42 Left and right saddles 72 are provided in an upper portion of the left and right saddle-type saddle-type saddle-type saddle-type saddle-

A linear guide surface 74 in the vertical direction, a ball screw 76 and a drive motor 78 are provided on the sidewall of the saddle 72. The linear guide surface 74 is provided with a conveyance head A main shaft 42 for rotating the tool 40 is provided at a lower portion of the transfer head 80 and a fixed table 82 is installed at a central portion of the bed 52 And an automatic tool changer (84) is provided on the side separated from the automatic tool changer (84).

The upper surface of the frame 62 provided with the linear guide surface 56 and the ball screw 58 and the drive motor 60 provided in the beam 54 of the machining center 50 is provided with a spindle The transferring column 64 which is for carrying the left and right conveyance of the ball 42 is moved vertically by the operation of the ball screw 68 and the drive motor 70, A linear guide surface 66 in the forward and backward directions mounted on the inner side surface of the transfer column 64 and a main shaft 42 connected to the ball screw 68 The saddle 72 for front and rear movement and the transfer head for upward and downward movement 80 are moved forward and backward along the linear guide surface 66 by the action of the ball screw 76 and the drive motor 78, The linear guide surface 74 provided in the vertical direction and the conveyance head 80 connected to the ball screw 76 move in the vertical direction to move the main shaft 42 vertically in accordance with the operation of the drive motor 78.

The automatic tool changer 84 mounted on another upper surface of the bed 52 is mounted on the upper surface of the fixed table 82 provided on the central portion of the bed 52, The tool 40 and the tool 40 mounted on the tool 40 are automatically exchanged.

Accordingly, the conventional vertical machining center 50 is configured such that chips, machining byproducts or cutting oil generated during machining of the workpiece are introduced into the carriage 20 and the conveying system of the table 28 and the stationary column 32 , The movement distance is changed, the machining accuracy is lowered, and the maintenance cost due to the operation of the equipment is increased due to the severe wear.

Further, when the installation space of the machining center 10 is narrow, restrictions are imposed on the protective cover and the sealing process for preventing the introduction of the by-products, and furthermore, the mounting position of the automatic tool changer 46 is also limited by the fixed column 32 ) In the vertical direction, so that it was totally unstable.

However, in the machining center 10 of the present invention, the means of the transfer system such as the transfer head 80 and the transfer column 64, saddle 72 and the like are installed at a height higher than the workpiece, It is possible to prevent the mechanical breakage, wear and deterioration of the performance, and to improve the stability of the mounting position of the automatic tool changer 84.

The present invention provides various transport system means for moving the position of the workpiece in the forward, backward, left, and right directions at a height higher than the position at which the workpiece is placed so that byproducts (such as chips, Etc.) and preventing the byproducts from flowing into the conveying means, thereby preventing mechanical damage and reducing the cost of performance maintenance and machine maintenance.

Thus, not only the simplification of the machine configuration as a whole can be achieved, but also the installation and stabilization of the automatic tool changer can be improved.

Claims (1)

In a vertical machining center, A plurality of beams 54 vertically installed at a corner of the upper surface of the bed 52 having the fixed table 82 and having a predetermined length; A frame 62 having left and right linear guide surfaces 56, a ball screw 58 and a drive motor 60 on the upper surface of the beam 54; A transferring column 64 having a linear guide surface 66, a ball screw 68 and a drive motor 70 on the inner surface thereof for transferring the main shaft 42 to the upper portion of the frame 62; A linear guide surface 74 in the vertical direction, a ball screw 76 and a drive motor 78 are connected to the ball screw 68 of the transfer column 64 to move the main shaft 42 forward and backward. (72); A transfer head 80 that projects a main shaft 42 on the bottom surface to move to a table 82 spaced downward along the linear guide surface 74 of the saddle 72, And an automatic tool changer (84) provided in the vertical machining center.