JPS62102940A - Pull stud - Google Patents

Abstract

PURPOSE:To enable tool data to be collected surely in a short time corresponding to each tool further the tool data of large amount to be stored, by providing a tool data storing element, which can store the tool data, in a pull stud mounted to a tool holder. CONSTITUTION:In a tool magazine driving control part, if a tool magazine 7 is turned in a direction A or B intermittently at every one pitch of a tool storage pocket 7a on the basis of a command from a main control part, a pull stud 11 in a tool 9, stored in the pocket 7a, is successively opposed to a read/write head by every one pitch rotation of the magazine 7. And a tool data input/output control part reads tool data, relating to the tool 9, from a tool data storing element 12 of the opposed pull stud 11. Since the tool data, relating to the tool 9, are stored in a memory part 12a of said storing element 12 so that read/write of the data can be performed contactlessly for the outside, with transmission and reception of the tool data between the read/write head and a control part 12b utilizing electromagnetic action, information can be surely transmitted with no influence by a stain of the surface of a holder 10.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to a pull stud that is detachably attached to a tool holder that holds a tool.

(b), Conventional technology Conventionally, various tool data such as tool number, tool name, tool diameter, tool length, life time, usage time, cutting conditions, etc. of tools used in machine tools are stored when the operator starts machining. When doing so, an input means such as a keyboard is operated to store the tool data in a predetermined storage area such as a tool data memory.

(C) 0 Problems to be Solved by the Invention However, with these methods, each time a tool is set, the operator has to input the tool data of the tool set in the tool magazine, etc., which is extremely complicated. Not only that, but it also had the disadvantage of being prone to input errors.

Therefore, a method of attaching a barcode to the tool and optically reading the barcode to collect data such as the tool number is also used, but the drawback of barcodes is that the amount of information that can be stored is extremely small. There is.

Furthermore, a method of recording tool data by providing a memory element in the tool holder may be considered, but since the tool holder rotates together with the tool at high speed during machining, problems arise in terms of rotational balance. Moreover, the tool holder is dedicated to a specific tool (i.e., a tool corresponding to the tool data stored in the memory element stored in the tool holder), and tool holders must be prepared for the number of tools to be used. This is necessary and extremely uneconomical.

The present invention can solve the problem of rotational balance and the problem of tool holders being dedicated to specific tools, and also eliminates the need for the operator to input tool data each time the tool is set. The object of the present invention is to provide a pull stud attached to a tool holder that can store a large amount of data.

(d) Means for solving the zero problem, that is, the present invention provides a tool data storage element (1) capable of storing tool data (DATA) in a pull stud (11).
2).

Note that the numbers in parentheses are for convenience and indicate corresponding elements in the drawings, and therefore, this description is not limited to the descriptions on the drawings. The following r (el
The same applies to the column ``, action''.

(e) 0 effect With the above-described configuration, the present invention;
) in the tool data storage element (12).

(f), Example Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is an enlarged view of a tool holder portion in which an embodiment of the pull stud according to the present invention is used; FIG. 2 is a front view showing an example of a machining center in which a tool equipped with the pull stud according to the present invention is used; The drawings are a side view of FIG. 2, FIG. 4 is a front view showing the tool magazine, and FIG. 5 is a control block diagram showing an example of a method for collecting tool data by the machining center.

A machining center 1, which is a machine tool, has a machine body 2, as shown in FIG. 2, and a table 3 on which a work is mounted is provided on the machine body 2 so as to be movable in two directions perpendicular to each other within a horizontal plane. ing.

A main shaft 5 on which a tool is mounted is rotatably provided above the table 3 in the figure, and a tool changer 6 is provided on the left side of the main shaft 5 in FIG.

Further, as shown in FIG. 3, the machine body 2 is provided with a tool magazine 7, which is formed entirely in a disk shape and can be freely rotated. Fourth
As shown in the figure, tool storage pockets 7a are arranged in such a manner that tools 9 can be removably stored therein.

In each tool storage pocket 7a, the tool 9 is stored in a tool holder 10.
As shown in FIG. 1, each tool holder 10 is formed with a tapered shank portion 10a. At the right end of the shank portion 10a in FIG.
A pull stud 11 used for attaching and holding the tool holder is removably screwed together with its axis aligned with the rotation center CL of the tool holder 10.
1 has a screw hole 11a screwed therein so that its center coincides with the rotation center CL of the tool holder 10. screw hole 11
A tool data storage element 12 formed in a cylindrical shape is screwed into the memory part 12.
an input/output control unit 1 that reads and writes tool data to and from the memory unit 12a and transfers data to and from the outside;
2b. Note that the number 23 is a bonding agent for fixing the tool data storage element 12 within the pull stud 11.

On the other hand, as shown in FIG. 5, a read/write head 13 is provided on the machine body 2, which can face the tool storage pocket 7a of the tool magazine 7. is connected. The tool data input/output control section 15 is connected to a main control section 17, a tool data memory 19, and a machine program memory 2 via a bus line 16.
A 0° keyboard 21, a tool magazine drive control section 22, etc. are connected.

Since the machining center 1 has the above configuration,
A workpiece is placed on the table 3, and in this state, the tool is exchanged between the tool magazine 7 and the spindle 5 using the tool exchanger 6, and machining is performed using the tool mounted on the spindle 5. The machining is executed according to the cannibal program PRO stored in the cannibal program memory 20, but in order to perform proper machining, tool data D regarding the tools 9 stored in each tool storage pocket 7a of the tool magazine 7 must be used.
ATA is required.

Therefore, prior to machining, when the tool 9 is set in the tool magazine 7 of the machining center 1, the operator outputs a tool data reading command RC to the main control unit 17 via the keyboard 21. In response to this, the main control section 17 instructs the tool magazine drive control section 22 and tool data input/output control section 15 to collect tool data DATA.

The tool magazine drive control section 22 intermittently rotates the tool magazine 7 in the direction of arrow A or B in FIG. 4 for each pitch of the tool storage pocket 7a based on a command from the main control section 17. Then, the pull studs 11 of the tool holders 10 of the respective tools 9 stored in the tool storage pockets 7a are successively opposed to the read/write head 13 as the tool magazine 7 rotates one pitch at a time. When the pull stud 11 of each tool 9 faces the read/write head 13, the tool data input/output control unit 15 transfers information from the tool data storage element 12 of the facing pull stud 11 to the pull stud 11 via the read/write head 13. The tool data DATA regarding the tool 9 of the tool holder 10 to which the tool holder 10 is attached is read. The memory section 12a of this tool data storage element 12 stores tool data DATA regarding the tool 9 held in the tool holder 10 to which the pull stud 11 provided with the tool data storage element 12 is mounted. The read/write head 13 and the input/output control unit 1 are stored so that they can be read and written to the outside without contact via the
The tool data DATA is transferred to and from the tool 2b using electromagnetic effects such as magnetic induction and electromagnetic induction. Therefore, as in the case of optical reading, the tool holder 1
Information can be transmitted reliably without being affected by dirt on the surface.

In this way, the tool magazine 7 is intermittently rotated every pitch of the tool storage socket 1-7a, and the reading/writing head 13 is rotated intermittently.
The tool data DATA is read through the tool data memory 19 and stored in the tool data memory 19. When the tool data DATA for all the tools 9 stored in the tool magazine 7 are stored in the tool data memory 19, the main control unit 1
7 enters a machining operation based on the machine program PRO based on the read and stored tool data DATA.

Note that the tool data DATA between the read/write head 13 and the tool data storage element 12 is transferred not only from the read/write head 13 side but also from the read/write head 1 side.
New tool data DA is sent from the third side to the memory section 12a.
Of course, it is also possible to write TA. That is, since data such as tool usage time changes each time the tool 9 is attached to the spindle 5 and used, such data is rewritten in the memory section 12a via the tool data input/output control section 15. ,Update.

(g) 0 Effects of the Invention As explained above, according to the present invention, the tool data storage element 12 capable of storing the tool data DATA is provided in the pull stud 11. By storing the tool data DATA regarding the tool 9 held by the tool holder 10 when the stud 11 is installed, the necessary tool data DATA can be collected by simply reading the data DATA regarding the tool from the storage element 12. Compared to the method in which the operator inputs the tool data DATA from a keyboard etc. each time the tool 9 is set, the tool data DATA can be collected for each tool more quickly and reliably. Extremely large amount of tool data DAT compared to methods using barcodes etc.
A can be stored.

Furthermore, since the pull stud 11 in which the tool data storage element 12 is stored is usually mounted in a T shape with its center coincident with the rotation center CL of the tool holder 10, the tool 9 is rotated at high speed during machining. Also, the tool data storage element 12 housed inside has little adverse effect on the rotational balance of the entire tool 9 and the tool holder 10, and is highly reliable.

Further, since the pull stud 11 is detachably provided with respect to the tool holder 10, the correspondence relationship between the tool 9 and the tool data DATA regarding the tool 9 is as follows.
1, no matter what kind of tool 9 is attached to the tool holder 10, it is only necessary to attach the pull stud 11 corresponding to the tool 9 to the tool holder 10. 9 will not be dedicated to
Extremely versatile.

[Brief explanation of drawings]

FIG. 1 is an enlarged view of a tool holder portion in which an embodiment of the pull stud according to the present invention is used; FIG. 2 is a front view showing an example of a machining center in which a tool equipped with the pull stud according to the present invention is used; The drawings are a side view of FIG. 2, FIG. 4 is a front view showing the tool magazine, and FIG. 5 is a control block diagram showing an example of a method for collecting tool data by the machining center. 10...Tool holder 11...Pull stud 12...Tool data storage element DATA...Tool data Applicant Yamazaki Iron Works Co., Ltd. Agent Patent attorney Phase 1) Shinji (et al.) 1 person)

Claims (1)

[Scope of Claims] A pull stud detachably installed in a tool holder, characterized in that a tool data storage element capable of storing tool data is provided in the pull stud.