JP2001121386A - Production line - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a production line space-saving and facilitating maintenance by shortening line length. SOLUTION: R-type machine tools 1, 3, 5 with equipments requiring maintenance such as X-shaft feed motors 12, centralized lubricating devices 31 oil and air lubricating devices 32, air units 33 and hydraulic units 34 arranged at the right side faces and rear faces of the machine tool bodies and L-type machine tools 2, 4, 6 with equipments requiring maintenance, arranged at the left side faces and rear faces of machine tool bodies with the R-type machine tools 1, 3, 5, are alternately arranged. The left side faces of the R-type machine tools 1, 3, 5 and the right side faces of the L-type machine tools 2, 4, 6 are brought close to each other, and maintenance spaces D are provided between the right side faces of the R-type machine tools 1, 3, 5 and the left side faces of the L-type machine tools 2, 4, 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible transfer line and the like for processing a workpiece sequentially conveyed by a plurality of machine tools arranged in a conveying direction of the workpiece by dividing a process. Related to the production line.

[0002]

2. Description of the Related Art In a conventional machine tool, in order to shorten the depth of the machine tool main body, devices requiring maintenance are arranged in a plane on the left, right, side and rear surfaces of the machine tool main body. The equipment requiring maintenance includes a motor, a centralized lubrication device, an oil and air lubrication device, an air unit, and a hydraulic unit.

[0003]

When a plurality of such conventional machine tools are arranged along the transfer direction of a workpiece to constitute a production line such as a flexible transfer line, maintenance is required on the left and right side surfaces of the machine tool body. Are required, a maintenance space needs to be provided between machine tools, and the line length becomes long. In addition, when the worker carries the workpiece, the walking distance becomes longer.

SUMMARY OF THE INVENTION An object of the present invention is to provide a production line which solves the above problems, shortens the line length, saves space, and allows easy maintenance.

[0005]

According to a first aspect of the present invention, there is provided a production line for processing a workpiece by dividing a process by using a plurality of machine tools arranged in a plurality of machine tools. An R-shaped machine tool in which necessary devices are arranged on the right side and the rear side of the machine tool main body;
The L-shaped machine tool is an L-shaped machine tool in which equipment requiring maintenance is alternately arranged on the left side and the rear side of the machine tool body. And a maintenance space is provided between the right side of the R-shaped machine tool and the left side of the L-shaped machine tool facing the right side of the R-shaped machine tool.

[0006] The right side or the left side of the machine tool main body is a plane perpendicular to the direction in which the workpiece is transported. According to the first aspect of the present invention, the left side surface of the R-type machine tool and the right side surface of the L-type machine tool can be adjacent to each other, so that the maintenance space is set at two units and the line length can be reduced.

According to a second aspect of the present invention, in the production line according to the first aspect, the machine tool includes a column movable in a direction parallel to a workpiece transfer direction, and moves the column forward and backward. The motor is provided on the right side of the R-type machine tool and the motor is provided on the left side of the L-type machine tool.

According to the second aspect of the present invention, the motor for moving the column forward and backward is provided on the right side of the R type machine tool and on the left side of the L type machine tool. It is possible to adjoin the right side of the machine tool,
The maintenance space is set every two units, and the line length can be shortened. In addition, the motor can be easily maintained in the maintenance space.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a plurality of machine tools which constitute a part of a production line. R-type machine tools 1, 3, 5 and L-type machine tools 2, 4, 6 are alternately arranged along the transfer direction of a workpiece. The left side faces of the R-shaped machine tools 1, 3, 5 and the right side faces of the L-shaped machine tools 2, 4, 6 are arranged close to each other, and the right side faces of the R-shaped machine tools 1, 3, 5 are A maintenance space D is provided between the left side surfaces of the L-shaped machine tools 2, 4, and 6.

The left side surfaces of the R-shaped machine tools 1, 3, 5 and the right side surfaces of the L-shaped machine tools 2, 4, 6 may be fixed to each other by beds 10 or whole covers. A small gap may be provided to prevent transmission of vibration.

Next, the configuration of the R-shaped machine tools 1, 3, and 5 will be described with reference to FIGS. An X-axis feed motor 1 is provided on the bed 10 along an X-axis guide rail 11 extending in the X-axis direction (perpendicular to the plane of FIG. 2).
There is provided a gate-shaped column 13 which is moved by 2. The column 13 is provided with a Y-axis slider 16 which is moved by a Y-axis feed motor 15 along a Y-axis guide rail 14 extending in the Y-axis direction (vertical direction in FIG. 2). The Y-axis slider 16 has a Z-axis guide rail 17 extending in the Z-axis direction (the horizontal direction in FIG. 2).
Is provided with a Z-axis slide table 19 which is moved by a Z-axis feed motor 18. A spindle head 20 is mounted on the Z-axis slide table 19, and a spindle 21 mounted on the tip of the spindle head 20 and rotatably driven by mounting a tool T on a tip thereof is rotatably supported around an axis parallel to the Z axis. ing.

An X-axis feed motor 12 is provided at the right end of the bed 10, and a right end of a ball screw 12a extending in the X-axis direction is connected to a rotation shaft of the X-axis feed motor 12. . A ball screw nut (not shown) of the ball screw 12a is fixed to the bottom of the column 13, and the column 13 is moved forward and backward in the X-axis direction by the X-axis feed motor 12 via the ball screw 12a. It has become.

On the front surface of the bed 10, a rotary table 25 is installed so as to face the spindle head 20.
The workpiece is positioned and fixed on the rotary table 25.

On the rear upper surface of the bed 10, an electric control box 30 containing equipment for controlling various operations of the machine tool is installed. Centralized lubrication device 3 for supplying lubricating oil to moving parts
1 and an oil & air lubrication device 32 for supplying lubricating oil to the main shaft bearing.

On the side of the electric control box 30, an air unit 33 for supplying air such as an air curtain for taper cleaning at the time of tool change and for preventing splash of coolant liquid is installed. A hydraulic unit 34 that supplies hydraulic pressure to a hydraulic piston that performs a clamp / unclamp operation of the tool T and a hydraulic actuator that performs a turning operation of the rotary table 25 is provided below the unit 33.
Is installed.

X-axis feed motor 12, centralized lubrication device 31,
The equipment requiring maintenance, such as the oil and air lubrication device 32, the air unit 33, and the hydraulic unit 34, is centrally installed on the right side and the rear side of the machine tool main body, so that the maintenance direction is also changed to the right side of the machine tool main body. And the rear surface.

As for the configuration of the L-shaped machine tools 2, 4, and 6, as shown in FIG. It is concentrated on the front and back surfaces.

An X-axis feed motor 12 is provided on the left end of the bed 10, and a left end of a ball screw 12a extending in the X-axis direction is connected to a rotation shaft of the X-axis feed motor 12. . The column 13 is the X-axis feed motor 12
As a result, it can be moved back and forth in the X-axis direction via the ball screw 12a.

In the above embodiment, the rotary table 2
5 is a front surface, a surface perpendicular to this front surface, and a surface perpendicular to the conveying direction of the workpiece W is a side surface, which faces the main axis T through a workpiece fixed and fixed on the side, and faces the front surface. Define the face as the back face. Further, a surface located on the right side as viewed from the front is defined as a right side surface, and a surface located on the left side is defined as a left side surface.

The production line described in the above embodiment is
The left side of the R-type machine tool and the right side of the L-type machine tool are arranged close to each other, but the left side of the R-type machine tool and the right side of the L-type machine tool are close to a wall surface or the like. It is also possible to arrange.

[0021]

According to the first aspect of the present invention, an R-type machine tool in which devices requiring maintenance are arranged on the right side and the rear side of the machine tool main body, and the R-type machine tool requires maintenance for an object. The left side of the R-shaped machine tool and the right side of the L-shaped machine tool can be adjacent to each other by alternately arranging various devices with the L-shaped machine tool arranged on the left side and the rear side of the machine tool body. And the maintenance space is 2
It can be placed on a table, the line length can be shortened, and the installation space can be saved.

According to the second aspect of the invention, in addition to the effect of the first aspect, in particular, the motor can be easily maintained in the maintenance space, and it is not necessary to move the machine tool main body for the maintenance. .

[Brief description of the drawings]

FIG. 1 is a top view of a production line showing an embodiment of the present invention.

FIG. 2 is a right side view of the R-type machine tool showing the embodiment of the present invention.

FIG. 3 is a top view of an R-type machine tool showing an embodiment of the present invention.

FIG. 4 is a rear view of the R-type machine tool showing the embodiment of the present invention.

[Explanation of symbols]

 1,3,5 R type machine tool 2,4,6 L type machine tool 12 X axis feed motor 13 Column D Maintenance space

Claims (2)

[Claims] 1. A production line for processing a workpiece by dividing a process by a plurality of machine tools arranged on a plurality of machine tools, the equipment requiring maintenance attached to the machine tool being provided on a right side and a rear side of a machine tool main body. R-shaped machine tool arranged in
The R-type machine tool is configured by alternately arranging L-type machine tools in which devices requiring maintenance are arranged on the left side and the rear side of the machine tool main body, and the left side of the R-type machine tool and the L-type machine tool. And a maintenance space is provided between the right side of the R-shaped machine tool and the left side of the L-shaped machine tool facing the right side of the R-shaped machine tool. line. 2. The production line according to claim 1, wherein the machine tool includes a column movable in a direction parallel to a workpiece transfer direction, and a motor for moving the column forward and backward is provided by an R-shaped machine tool. A production line characterized in that an L-shaped machine tool is provided on the left side on the right side.