JPS6325067Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is configured so that a fixed tool that is used for turning and does not rotate itself or a rotating tool such as a milling cutter or drill can be selectively attached, making it possible to perform a wide variety of processing. This is a multi-purpose machine tool that has a function to automatically change these tools.

When changing tools on such machines, it is necessary to be able to selectively store both fixed tools and rotary tools in the tool magazine, and when returning the tool attached to the spindle head or replacing the new tool. At the time of installation, it is possible to determine which tool, a fixed tool or a rotary tool, can be returned to a predetermined position in the tool magazine, or which tool is installed in a predetermined position in the tool magazine and is being indexed and rotated. Required to be identified. However, conventionally,
I could not find any multi-tasking machine tool with such functions.

In view of the above-mentioned circumstances, the present invention makes it possible to selectively store both fixed tools and rotary tools, and to return either the fixed tool or the rotary tool to a predetermined position in the tool magazine. The purpose is to create a multi-tasking machine tool that can identify which tool is installed in a predetermined position in the tool magazine and is being indexed and rotated. and a tool magazine configured to selectively attach rotary tools to the spindle head to perform compound machining and capable of selectively storing a large number of the two tools, and a tool exchange position of the tool magazine and the spindle head. In a multi-tasking machine tool equipped with an automatic tool changer, the tool magazine includes a grip for gripping a fixed tool and a grip for gripping a rotary tool. The tool is provided so that the gripped tools are located on the same axis, one grip can be retracted from the gripping position, and a means for detecting retraction is provided. Therefore, any tool can be selectively stored and also identified.

Embodiments of the present invention will be described below with reference to the drawings shown in FIGS. 1 to 8.

Figures 1 and 2 are composite NCs implementing this invention.
This shows the front external view of the lathe, where 1 is the table, 2
It consists of the main parts such as column, 3 cross rail, 4 saddle, 5 turret, 6 main shaft, etc.
Figure 1 shows a case where a fixed tool 7 for turning or boring is attached to the tool rest 5, and Figure 2 shows a case where a sealing cap 8 is attached to the tool rest 5 and a rotary tool 9 for milling, drilling, tapping, etc. is attached to the main shaft 6. Each case is shown below.

FIG. 3 is a sectional view showing a state in which the fixed tool 7 is mounted on the tool rest 5, and a micro switch 10, which is a detector, is attached to the side surface of the tool rest 5. 11 is a cover, and 12 is a pull stud.
The micro switch 10 detects that the fixed tool 7 or the sealing cap 8 is attached.

FIG. 4 shows a state in which the rotary tool 9 is attached to the main shaft 6 and the sealing cap 8 is attached to the tool post 5.

FIG. 5 shows a plan view of the tool magazine, and the grip 13 for gripping the stationary tool 7 and the grip 14 for gripping the rotary tool 9 are provided so that the centers of gripping the tools are located on the same axis. In this figure, the parts indicated by numerals 13 and 14 indicating the respective grips are in a state in which they can grip a rotary tool. 6 is a front sectional view of FIG. 5, FIG. 7 is a plan view showing a tool gripping portion of the tool magazine, and FIG. 8 is a side sectional view of FIG. 7. In the figure, 13 is a grip for a fixed tool, and 14 is a grip for a rotating tool, which are rotatably held on a grip support 16 via a pin 15. Reference numeral 17 is another microswitch that detects that the rotary tool grip 14 has turned to the tool exchange position.

Note that FIGS. 7 and 8 show a state in which the rotary tool grip 14 is rotated via the pin 15 and retracted from the tool gripping position, and the grip 14
3 shows that the fixing tool 7 is ready to be installed. At this time, micro switch 17 is
It is in the OFF state.

The rotary tool grip 14 may be retracted manually from the tool gripping position, but automation can be achieved by having a retracting device (not shown) perform the retraction from the tool gripping position based on a command from the control device.

In this way, the grip 13 that grips the fixed tool 7 is used when installing a tool in the tool magazine for the first time or when changing the arrangement of tools in the tool magazine.
Alternatively, by selecting one of the grips 14 for gripping the rotary tool 9 and attaching the tool, the tool gripping position is automatically changed to a fixed tool position depending on the operating state of the micro switch 17.
This allows it to be determined whether the tool is for a rotary tool or not.

In addition, if the interlock is set based on the identification signal of the micro switch 10 attached to the tool rest 5 and the identification signal of the micro switch 17 attached to the tool magazine, if the interlock status is not as shown below, can stop the tool exchange operation and display an error message.

(i) When returning the tool to the tool magazine (ii) When installing new tools Note that the above-mentioned identification signal is not limited to a microswitch, and the same effect can be achieved by a combination of a fluid and a pressure switch.

Next, to roughly explain the tool magazine mechanism shown in FIGS. 5 and 6, 18 is a frame, 19 is a magazine indexing drive motor, 20 is an indexing drive pinion, 21 is an indexing drive gear, and 22 is a magazine. Rotating body, 23 is a grip mounting face plate, 24 is a tool pot detection device, 25 is a limit switch for detecting ram overrun, 27 is a cover that can be opened and closed manually when a tool is attached, and 28 is an automatic opening/closing cover that is automatically opened and closed by the cylinder 29 for opening and closing the cover when changing tools. Can be opened and closed.

As is clear from the detailed description above, according to the present invention, both fixed tools and rotary tools can be selectively stored in the tool magazine, and either the fixed tool or the rotary tool can be mounted at a predetermined position. It is easy to identify which

[Brief explanation of the drawing]

The drawings show an embodiment according to the present invention. Figures 1 and 2 are front views of a composite NC lathe, Figure 3 is a sectional view showing a turret equipped with a fixed tool, and Figure 4 is a cross-sectional view showing a turret equipped with a rotating tool. 5 is a plan view of the tool magazine, FIG. 6 is a front sectional view of FIG. 5, FIG. 7 is a plan view of the tool grip, and FIG. 8 is a front sectional view of FIG. 7. It is a diagram. 5...Turret, 6...Main shaft, 7...Fixed tool, 9...Rotary tool, 10...Micro switch, 13...Grip for fixed tool, 14...Grip for rotary tool, 17...Micro Switch, 2
2...Magazine rotating body, 23...Grip mounting face plate.

Claims (1)

[Scope of utility model registration request] A tool magazine configured to perform compound machining by selectively mounting a fixed tool and a rotary tool on the spindle head, and capable of selectively storing a large number of both tools, and a tool exchange position of the tool magazine and the spindle. In a multi-tasking machine tool equipped with an automatic tool changer including means for exchanging tools between the tool magazine and the tool head, the tool magazine includes a grip for gripping a fixed tool and a grip for gripping a rotary tool. A compound machine tool characterized in that both grips are arranged so that the tools gripped by the grips are located on the same axis, one of the grips can be retracted from the gripping position, and a means for detecting retraction is provided.