JPS62152635A - Tool selecting method by use of tool number memory in numerically controlled machine tool - Google Patents

Abstract

PURPOSE:To aim at facilitating the management of tools and at reducing the man-hours for programming, by storing the relationship between the tool code number of a tool adapted to be fitted into a tool holder in a tool magazine, and the holder in a memory in a NC device so that the tool number is addressed. CONSTITUTION:During exchange of tools, when a tool exchange instruction is issued, a desired tool code number T0001 is addressed, and in accordance with an addressing instruction, a NC device delivers a tool holder number of the corresponding tool maga zine 1 to a direction discriminating and coinciding means 5. Meanwhile, a tool maga zine number detecting means 4 delivers the position of a tool holder 2 to the direction discriminating and coinciding means 5, and therefore, both numbers are compared with each other to determine the moving direction of the tool magazine 1 so that an indexing control circuit means 6 and a drive means drives a motor 8 to rotate the magazine until both numbers coincide with each other so that a desired tool is selected. Thus, it is possible to facilitate the programming of tool selection, and there fore, it is possible to enhance the availability factor of the machine while tools to be used are standardized by the tool code number to facilitate the management of tools.

Description

[Detailed description of the invention] Unexplored industrial application field relates to a tool selection method for an automatic tool changer of a numerically controlled machine tool, particularly a numerical control suitable for facilitating tool management and improving the operating rate. This invention relates to a tool selection method using a TA number memory of a machine tool.

BACKGROUND ART As shown in Fig. 2, a tool magazine l of an automatic tool changer is used.
A tool holder 2 for storing a large number of tools is disposed inside. The tool holders 2 are named with predetermined numbers, such as numbers 1 to 13 as shown in the figure. On the other hand, the tools are named by T codes, which correspond to the above-mentioned number of tool holder 2 and l to l, for example, as shown in the figure, TI, T2...T13. . Therefore, the tool does not have a unique name, and is named as described above when inserted into the tool holder 2. Therefore, the number of tools is limited to the number of tool holders 2.

That is, in the tool holder 2 of the tool magazine 1, there is 1. For example: As shown in Table 3 of Figure S2, the tool TIO is currently inserted into the tool magazine number l, and the tool T211 is inserted into the tool magazine number 2. Each inserted tool is identified by the tool magazine number of the tool holder 2.

When a tool change command is issued, the desired tool number is called out, this is compared with Q9 from the tool magazine number detection means 4, and the rotation direction of the tool magazine l is determined by the direction determination/quantity control means 5; Output circuit v control "stage 6
, via the drive control means 7.

The tool magazine 1 is operated by the motor 8, rotates the tool magazine 1 until the two coincide, and the desired tool is selected.

Due to the E-type structure, the programmer is inconvenienced by having to associate the number of the tool holder 2 with the tool each time a tool is replaced, and this has been a problem in terms of management.

Problems to be Solved by the Invention The present invention has been made in view of the above problem, and calls the tool using the T code named t.
An object of the present invention is to provide a tool selection method using a tool number memory for a numerically controlled machine tool, which facilitates tool management, reduces programming effort, and improves the operating rate of the machine.

Means for Solving the Problems To achieve this, the present invention names the tools used in the factory using T code numbers, and assigns the same T code number to each used T inserted into the tool holder of the tool magazine. The present invention is characterized by a tool selection method using the tool number memory of a numerically controlled machine tool, in which the relationship with the tool holder is stored in advance in the numerical control device, and when selecting a tool, only the above-mentioned T code number is called to select the tool. .

EXAMPLES Below, a preferred example for carrying out the present invention will be described based on the drawings.

As shown in No. taiM, assign a T code number to all or some of the tools used in the factory in advance.
Name I to T 911199. This naming may be any appropriate name that is convenient for the management of the factory.For example, the names may be set as appropriate, such as using TOOal to TOloo for drills, TOIOI to T0200 for price tools, etc. Therefore, the tool used is the 0th order registered tool T, which is given a unique name in advance regardless of whether it is inserted into the tool magazine 1.
Among the tools in code table 9.

Select tools to be used in numerically controlled machine tools.

As shown in the comparison table 1O of FIG. 1, the number is stored in the numerical control device of the machine in correspondence with the number of the tool holder 2 of the tool magazine 1. When a tool exchange command is issued during tool exchange, a desired T code number, for example TOOOI, is called. In response to this call command, the numerical control device inputs the tool holder number of the corresponding tool magazine l to the direction determination/quantity control means 5. On the other hand, the tool magazine number detecting means 4 inputs the position l of the tool holder 2 to the direction discrimination matching control means 5, so that the two are compared and the moving direction of the tool magazine l is determined. Similarly, the motor 8 is operated by the single-output circuit control means 6 and the driver 9 to rotate the tool magazine 1 until the two coincide, thereby selecting a desired tool.

As shown above, tool selection can be done by simply calling the tool using the predetermined T-code number of the tool being used, which makes programming easier than with conventional technology, and as a result, improves the operating rate of the machine. can be improved. Furthermore, since the necessary tools used within the factory are standardized and managed using T code numbers, tool management is greatly facilitated.

In this embodiment, the T-code number is 4 digits, but it is not limited to this as shown in L, and can vary depending on the scale of the factory.

An appropriate value may be set in consideration of the type N of the tool being used.

As is clear from the explanation given in section E, the present invention has the advantage of facilitating tool management and improving the operating rate of the machine.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a block diagram of a conventional technique. , ...Tool magazine, 21st tool pole, 3.10--Φ・Comparison table, 4--Tool magazine''''-No. detection P It・5°°°° direction "1 match" Control r 2 stages, 6-・φ・---Output circuit control-L stage, 7・
...Drive stage, 8...Motor, 9...Registered ball 31 T code table.

Claims (1)

[Claims] The tools used in the factory are named by T-code numbers, and the T-code numbers of tools inserted into the tool holders of the tool magazine are input into the numerical control device in advance in correspondence with the tool magazine numbers. Above T
A tool selection method using a tool number memory for a numerically controlled machine tool, characterized in that a desired tool is selected by calling only a code number.