JPH04102746U - Machine Tools - Google Patents

Abstract

(57) [Summary] [Purpose] To improve machining productivity while preventing adverse effects on tools due to shock during tool exchange. [Structure] A tool 14 stored in a magazine 4 is attached to the main spindle 3 by an exchange arm 5 installed between the main spindle 3 and the tool 14.
A tool 15 stored in a magazine 6 is attached to the main spindle 3 by an exchange arm 7 installed between the main spindle 3 and the tool 15. However, the operating speeds of the magazine 4 and exchange arm 5 and those of the magazine 6 and exchange arm 7 are different from each other. etc. tools are replaced.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is a machine tool that has multiple automatic tool changers (hereinafter referred to as ATC devices). Regarding machines.

0002

[Conventional technology]

Traditionally, machine tools have had ATC devices that automatically change tools to the main spindle. Machine tools were known.

0003 In addition, due to requests such as improving production efficiency, tools are stored in the tool storage magazine of the ATC device. The number of stored tools that can be stored in There are also many machine tools that have gazines.

0004 However, it is necessary to have only one exchange arm for one spindle. That was the current technology.

[0005]

[Problem that the idea aims to solve]

In recent years, the demand for pursuing productivity has increased even further, and even in the ATC devices of machine tools, Shortening the indexing time of the tool and the operating time of the exchange arm, i.e., faster tool exchange. is required.

[0006] However, as tool exchange speeds increase, internal precision such as automatic measurement probes has increased. Tools with precise measurement mechanisms lose reliability due to shock when changing tools. There is now a risk of erroneous measurements. In addition, it is more difficult to process than before. If necessity requires heavy tools, reduce the operating speed of the ATC device; It alleviated the shock. Therefore, in this case, productivity during processing is sacrificed. was.

[0007]

[Means to solve the problem]

The machine tool according to the present invention has a main shaft on which a tool is mounted and which processes a workpiece, and Each of the tools installed adjacent to the shaft and attached to the main shaft is stored therein. and multiple tool storage magazines with mutually different operating speeds, and these tool storage magazines. The tools are provided between the main spindle and the main spindle in correspondence with the respective tools. Change the operating speed of each tool storage magazine while exchanging tools between storage magazines. It is characterized by having a plurality of exchangeable arms with mutually different operating speeds corresponding to each degree. It is something to do.

[0008] In other words, one tool storage magazine and exchange arm are The other tool storage magazine and exchange arm have a maximum operating speed. Adjustable to the optimum operating speed to avoid shock to the tool. There is.

[0009]

[Effect]

The tools stored in each tool storage magazine are It is gripped by an exchange arm installed corresponding to the main shaft and attached to the main shaft. Also, the main Tools attached to the shaft are similarly stored in their respective tool storage magazines using the exchange arm. It will be done.

0010 When changing these tools, use the tool storage mat at an operating speed appropriate for the tool type. The gazine and exchange arm operate to perform exchange.

[0011]

【Example】

An example of the machine tool according to the example is shown in FIGS. 1 to 3, and based on these figures, This example will be explained.

0012 Fig. 1 is an external plan view of one embodiment of the machine tool of the present invention, and Fig. 2 is an external plan view of an embodiment of the machine tool of the present invention. FIG. 3 is a front view of the exchange arm portion.

[0013] As shown in FIGS. 1 and 2, on a table 2 movably supported by a machine tool 1. A workpiece (not shown) is placed thereon. This workpiece can be rotated by machine tool 1 The cutting process will be performed with a tool attached to the main spindle 3 supported by the main shaft 3.

[0014] In addition, this machine tool 1 is equipped with two ATC devices, and a first ATC device is installed. The C device 12 includes a tool storage magazine 4 placed horizontally in parallel with the column 11 and a tool storage magazine 4 placed horizontally in parallel with the column 11. It consists of an exchange arm 5 etc. attached to the magazine 4. On the other hand, the second ATC device The housing 13 includes a tool storage magazine 6 on the column 11 and a replacement accessory attached to this magazine 6. It is composed of a switching arm 7 and the like. Therefore, these two ATC devices 12 and 13 , the tool is attached to the spindle 3, and the tool 14 is removed from the spindle 3. It will be done.

[0015] That is, the tool 14 attached to the magazine 4 of the first ATC device 12 is The magazine 4 rotates and is gripped by the exchange arm 5 at the position of the tool exchange position pot 8. At the same time, the exchange arm 5 is removed from the magazine 4, and then the exchange arm 5 is moved in the direction of the arrow in FIG. The tool 14 is attached to the main spindle 3 by rotating toward the main spindle 3 as shown in FIG.

[0016] On the other hand, the tool 15 attached to the magazine 6 of the second ATC device 13 is The jig 6 rotates and is held by the exchange arm 7 at the tool exchange position pot 9. At the same time, it is removed from the magazine 6, and then the replacement part is removed as shown by the arrow in Figure 3. The arm 7 rotates and the tool 15 is attached to the main shaft 3.

[0017] And, between the machining area 16 by the main spindle 3 of the machine tool 1 and the ATC devices 12 and 13, There is a cover to prevent cutting oil from scattering, and the magazine 6 and exchange arms 5 and 7 are equipped with a cover to prevent cutting oil from scattering during machining. Constructed to prevent oil from splashing. However, when the ATC devices 12 and 13 are in operation, the The bar door opens and closes, and there is no problem when changing tools.

[0018] Furthermore, as mentioned above, it has two mutually independent ATC devices 12 and 13. Therefore, it is possible to individually set the operating speed of exchange arms 5, 7, etc. , one ATC device is for high-speed operation and the other is for low-speed operation with adjustable speed. be able to. In other words, in order to improve productivity, the magazine of one ATC device is Store tools that do not cause problems even when changing at high speeds, and change them in the minimum amount of time. Make sure that the magazine of the other ATC device is not susceptible to shocks from automatic measurement probes, etc. It can be used to store tools.

[0019] For example, normal tools are stored in the magazine 4, and the magazine 4 and exchange arm 5 are It operates at high speed, stores measurement probes, etc. in the magazine 6, and then closes the magazine and The relationship is such that the exchange arm 7 operates at a low speed. This relationship can also be reversed, Furthermore, three or more ATC devices may be installed.

[0020]

[Effect of the idea]

According to the machine tool of the present invention, it is possible to accommodate multiple tool storage magazines and have multiple exchange parts. As a result of creating a structure with multiple ATC devices, such as installing a The ATC device that operates at low speed replaces regular tools, and the ATC device that operates at low speed replaces measuring tools. It is now possible to replace heavy tools, etc.

[0021] Therefore, while aiming to improve productivity, the reliability of measuring tools and heavy tools can be improved. It has become possible to prevent the negative effects of shock.

[Brief explanation of drawings]

FIG. 1 is an external plan view of an embodiment of a machine tool of the present invention.

FIG. 2 is an external side view of an embodiment of the machine tool of the present invention.

FIG. 3 is a front view of the vicinity of the exchange arm of one embodiment of the machine tool of the present invention.

[Explanation of symbols]

1 Machine tools 2 table 3 Main shaft 4,6 Magazine 5,7 Replacement arm 8,9 Exchange position pot 12,13 ATC device 14,15 Tools

Claims (1)

[Scope of utility model registration request] 1. A spindle on which a tool is attached to process a workpiece, and a plurality of tools that are installed adjacent to the spindle and accommodate the tools to be attached to the spindle, and have mutually different operating speeds. A storage magazine is provided between the main shaft and the main shaft corresponding to each of these tool storage magazines, and is configured to exchange tools between the main shaft and these tool storage magazines and to correspond to the operating speed of each tool storage magazine. A machine tool characterized by having a plurality of exchange arms having mutually different operating speeds.