JPH03149155A - Machine tool - Google Patents

Abstract

PURPOSE:To drop cutting chips of a workpiece downward so as to prevent the cutting chips from biting between a seat pad and a pallet in a jig device by providing work units in a leg part of a suspending member and a coolant receiving member in the lower part of the suspending member. CONSTITUTION:A workpiece 11 is mounted to a jig device 2 through a seat pad 14 and a pallet 15 and worked by tools 32 of work units 4, 5 rotated and moved in X, Y, Z-axis directions. Cut chips 17, produced by machining this workpiece 11 and twist-wound on the tools 32 or the like, are forcedly discharged by a coolant 12 and dropped by gravitational force, and the cut chips 17 and the coolant 12 are received by a coolant trough 8, and an arch-shaped suspending member 1 causes no deformation by heat because of no influence of heat of the cut chips 17 and the coolant 12.

Description

[Detailed description of the invention] "Industrial Application Fields" The present invention relates to machine tools.

[Prior Art] In a conventional machine tool, a jig device and a processing unit are placed on a bed. Therefore, when machining a workpiece fixed to a jig device with the tool of the machining unit, there is a problem that chips generated from the workpiece get caught between the seat pad and pallet of the jig device, resulting in machining defects. there were. In addition, when the coolant that falls between the tool and the workpiece in the machining unit flows onto the bed, the heat of the coolant causes the bed to deform, causing a problem in that machining accuracy changes. Ta.

Therefore, in Japanese Utility Model Publication No. 42-3591, a processing unit is provided on the bed, and a gate-shaped bridge is constructed by a folding screen to straddle the processing unit, and the gate is placed on the roof of the bridge to carry the workpiece. A hanging jig device for a transfer machine is disclosed. However, in the conventional device, there is a problem in that the bed is deformed by the heat of the coolant because the coolant for forcing the chips to flow out falls on the bed.

``Problems to be Solved by the Invention'' The present invention was made to solve the above problems, and it prevents chips from getting caught between the seat pad of the jig device and the pallet, and also prevents chips from getting caught between the seat pad of the jig device and the pallet. The purpose of the present invention is to provide a machine tool in which the bed is not deformed.

[Means for Solving the Problems] Therefore, the machine tool of the present invention includes a suspension member including a leg portion and a ceiling portion, and a jig device provided on the ceiling portion of the suspension member. According to the above configuration, the jig device comprises: a processing unit provided at the leg portion of the suspension member; and a coolant receiving member provided at the lower part of the suspension member.” is provided on the ceiling part of the suspension member, so when the workpiece is fixed to the jig device and the workpiece is machined, the chips fall downward due to gravity, so that the chips are not cured. The tool will not get caught between the seat pad of the tooling device and the pallet, and since the processing unit is installed on the leg of the suspension member, this will not occur when processing the workpiece with the tool of the processing unit. The chips and the coolant for forcibly discharging the chips do not fall on the bed and are received by the coolant receiving member, so that the suspension member is not affected by the heat of the chips or the coolant.

"Embodiments" Next, embodiments of the present invention shown in the drawings will be specifically described.

As shown in Figure 1, the suspension member l formed in an arch shape
includes the leg portion 1a and the roof portion 1b. A jig M2 is attached to the ceiling portion 1b of the suspension member 1. In the jig device R2, a jig mounting hole 3 is bored in the ceiling portion lb so that the ceiling portion of the suspension member l can be lifted and removed, and the jig mounting W2 is inserted into the jig mounting hole 3. It is designed to fit in. Processing units 4 and 5 are attached to the leg portions 1a of the suspension member 1. The processing unit 4.5 has removal windows 6, 7 in order to be able to be removed from the suspension member 1.
is bored in the suspension member 1. When a transfer machine is constructed by combining a plurality of suspension members 1.1.1..., a space gap G is provided so that the processing units 4 and 5 can be extracted from between each suspension member l. This is provided. A coolant trough 8 as a coolant receiving member is attached to the lower part of the suspension member 1 below the jig device 2 and the processing unit 4.5.

In order to allow a cleaning port bot (not shown) to run inside the coolant trough 8, a rail 9,10 is attached to the trough 8 at an opposite position. The rails 9, IO are also used to move the tool changing robot into the trough 8 in a fast manner. If a turntable is attached to the jig device 2 and the jig device 2 is rotated on a horizontal plane.

Four sides of the workpiece 11 fixed to the lower surface of the jig W2 can be processed. Furthermore, if an angle head (not shown) is attached to the main shaft of the processing unit 4.5 so that the lower surface of the workpiece 11 can be machined, the workpiece 11 can be machined from five sides. The coolant trough 8 is formed as an arch-shaped gutter so that the coolant 12 can flow therethrough. A control operation panel 13 is provided on the leg portion 1a of each suspension member 1, and the transfer machine is composed of modules in station units. The jig 3F2 is provided with a seat pad 14 and a pallet 15, so that the workpiece 11 can be attached via a clamp device (not shown), and the jig W2 is provided with a transfer par 16 to attach the workpiece 11. The workpiece 11 can be sequentially fed between the suspension members 1. Each suspension member 1 is provided with a suspension member coupling portion 20 protrudingly provided, and a coupling surface 20a of the coupling portion 20 is provided with a coupling member 20 such as a pipe for passing oil or an electric wire, or a coupling bolt.
b is a provision.

FIG. 2 is a front view of this embodiment. Coolant trough 8
A rail 9.10 is fixedly installed on the rail 9.10.
A tool exchange robot 22 is provided so as to be freely movable along the line. The tool exchange robot 22 has a table 23,
Rollers 24.25 provided at the bottom of the table 23 movably engage the rails 9.10. table 2
Guides 26 and 27 are fixedly installed above the robot arm 3, and robot arms 28 and 29 move back and forth along the guides.

A tool stocker 30 is located on the table 23, and tools 32 are exchanged on the spindle 31 by the robot arm 2.8.29. The robot arms 28 and 29 can move up and down and rotate. The main shaft 31 of the tool unit 4.degree. 5 is rotatable and movable in the x, y, and z axes directions.

In the above configuration, the workpiece 11 is attached to the jig device 2 via the seat pad 14 and the pallet 15, and the workpiece 11 is rotated by the tool 32 of the processing unit 4.5 and
, y, and z-axis directions. Workpiece 11
The chips 17 and the coolant 12 are received by the coolant trough 8, and the arch-shaped suspension member 1 is free from the chips 17 and the coolant 12. coolant 1
A workpiece 1 that has been processed at one station, which is not affected by the heat of 2 and is not deformed by heat.
1 is sequentially fed to each suspension member 1 by a transfer par 16, and the necessary processing to make it into a product is performed at each station.

The tools 32 of the machining unit 4.5 are automatically exchanged by the tool exchange robot 22 according to the machining stage at each station (suspension member 1). When automatically exchanging the tool 32, the spindle 31 is moved to the tool exchange position, the robot arm 28.29 rotates and moves upward to grasp the tool 32 that has finished being used, and then moves the spindle 31 backward to remove the tool. 32 from the main shaft 31, and remove it from the robot arm 2.
The new tool 32 is positioned in front of the main spindle 31 by rotating 8.degree. 29, and the new tool is attached to the main spindle 31 by moving the main spindle 31 forward.

[Other Embodiments] The present invention is not limited to the details of the above-described embodiments. For example, the tool exchange robot 22 not only runs on a rail 9.10 provided in the coolant trough 8, but also A rail may be provided on the ceiling portion 1b of the upper part of the suspension member 1 so that the tool can run on the rail. The tool exchange robot is provided with a robot arm that is long enough to reach the main shaft 31 of the tool exchange robot. The robot arm not only exchanges tools by vertical movement and rotation, but also may change tools by swinging between the tool stocker and the main axis. The shape is not limited to the arch shape as shown in FIGS. 1 and 2, but may be formed into an angular gate shape.

[Effects] As described above, the machine tool of the present invention includes a suspension member including a leg portion and a ceiling portion, a jig device provided on the ceiling portion of the suspension member, and the suspension member. Since the processing unit is provided on the leg of the workpiece and the coolant receiving member is provided on the lower part of the suspension member, chips from the workpiece fall downward and flow between the seat pad of the jig and the pallet. The coolant and chips are not caught in the coolant receiving member, so there are no machining defects.
The suspension member is not deformed by the heat of chips or coolant, and changes in machining accuracy are greatly reduced. Furthermore, since a coolant receiving member is provided on the suspension member without installing a bit on the floor, it is easy to add additional processing stations, which is advantageous in aiming for an unmanned factory. There is.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a front view indicated by the arrow ▪ in FIG. 1. 1... Hanging member, 1a... Leg part, ib...
Ceiling portion, 2... Jig device, 4, 5... Processing unit, 8... Coolant trough.

Claims (1)

[Scope of Claims] A suspension member including a leg portion and a ceiling portion, a jig device provided on the ceiling portion of the suspension member, and a processing provided on the leg portion of the suspension member. A machine tool comprising: a unit; and a coolant receiving member provided at a lower part of the suspension member.