JPH04164555A - Tool id fixture - Google Patents

Abstract

PURPOSE:To make a tool ID not removed from a tool holder, even in case of the spindle of a machine tool being rotated at high speed, by integrally forming a holding part which holds the tool ID with its engagement detachably and a fitting part which fixes detachably by a screw from the tool side. CONSTITUTION:A round hole like holding recessed part 2 which opens only for the back face is formed at one side of a tool ID fixture 1, and a female screw 2a is formed on the peripheral wall of the open side part of the holding recessed part 2. A fitting part 3 is formed at the other side of the fixture 1, a fitting hole 4 is formed parallel to the holding recessed part 2 at the fitting part 3. The fitting hole 4 is penetrated through the fitting part 3 in the front and back directions, a large diameter part 4a is formed at the surface side, and a small diameter part 4c connected to the large diameter part 4a is formed via a step 4b at the back face part side. A tool ID 5 is engaged with the holding recessed part 2. And, a screw cover 6 formed with a male screw part 6a on the outer peripheral part is fastened with its screwing with the female screw 2a of the holding recessed part 2, and the tool ID 5 is held with its engagement attachably to the holding recessed part 2, by pressing it to the bottom of the holding recessed part 2.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a tool ID fixture for attaching a tool ID storing tool information to a tool holder.

[Conventional technology]

Numerical side Wj (hereinafter abbreviated as NC) When a tool is attached to the main spindle of a machine tool along with its tool holder using an automatic tool changer, information on the tool ID attached to the tool holder of this tool is sent to the tool machine side. The tool identification number (hereinafter referred to as No.
, abbreviated as ) and the machine tool's N (tool code number stored in the JIJ control circuit) match, and only if the numbers of both match, the tool is installed. In order to prevent machining with the wrong tool, machining is performed using a tool that has been properly adjusted.

Therefore, a tool ID is attached to a tool holder that removably holds a tool, but conventionally, an ID containing tool information was used.
A tool ID made of a C-chip or the like is directly fixed with an adhesive to the pull stand portion of a tool holder or the inside of a circumferential groove in which an exchange arm of a tool exchange device engages.

[Problem to be solved by the invention]

As mentioned above, in the past, the tool ID was directly fixed in place on the tool holder with adhesive, so the main shaft of the machine tool was rotated at high speed and the tool held in the tool holder was used to perform processing such as cutting. Sometimes, there is a risk that the tool ID may come off the tool holder due to poor adhesion and be scattered.
In addition, when replacing the tool ID, it cannot be removed from the tool holder without breaking the tool rD, which may damage the tool, and the adhesive may be left on the part of the tool holder where the tool ID was removed. The remaining part is another tool I.
There were problems in that it became difficult to bond D and that it took time to replace the tool ID.

This invention solves the above-mentioned problems, allows the tool ID to be attached and removed from the tool holder with good workability, and even when the main shaft of the machine tool is rotated at high speed, the tool ID does not come off from the tool holder. It is an object of the present invention to provide a tool ID fixture that can be used in the following manner.

[Means to solve the problem]

The tool ID fixture of the present invention is integrally formed with a holding part that removably fits and holds the tool ID, and a mounting part that is removably fixed to the tool side with a screw.

[Function] In the tool ID fixture according to the present invention, when the fixture is not attached to the tool holder, the tool ID is fitted into the holding recess, the screw cap is tightened in the holding recess, and the tool ID is attached using the screw cap. By pressing the tool ID against the bottom of the holding recess, the tool ID can be removably held in the holding recess without using an adhesive, and the mounting part of the fixture holding the tool ID can be attached with a bolt or screw. It can be removably fixed to the tool holder using a screw. For this reason, even if the main spindle of a machine tool is rotated at high speed and a tool attached to the main spindle via a tool holder performs machining such as cutting on the workpiece, the fixture may come off from the tool holder or the tool may be removed from the fixture. The ID will not come off. Also, when replacing the tool ID, when removing the fixture from the tool holder or removing the tool ID from the holding recess of the fixture, adhesive is not used to secure the tool. The tool ID and fixture can be removed without leaving any residue, and the tool ID can be easily replaced in a short time.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a tool ID fixture, and this fixture 1 is integrally molded into a block shape from a non-magnetic material such as nylon, and is constructed as follows. That is, a circular hole-shaped holding recess 2 that opens only on the back side is formed in one example of the tool ID fixture 1, and a female thread 2a is formed in the peripheral wall of the opening side of the holding recess 2. A mounting portion 3 is formed on the other side of the mounting tool 1, and a mounting hole 4 is formed in the mounting portion 3 in parallel with the holding recess 2. The attachment hole 4 passes through the attachment portion 3 in the front and back directions, and has a large diameter portion 4a formed on the front side and a small diameter portion 4C connected to the large diameter portion 4a via a step 4b on the back side.

A tool ID5 is fitted into the holding recess 2.

Note that the tool ID 5 is composed of an IC chip or the like containing tool information such as a tool identification number.

And a screw in which a threaded portion 6a is formed on the outer periphery of the female threaded portion 2a of the holding recess 2! By screw-fitting and tightening 6 and pressing the tool ID5 to the bottom of the holding recess 2, the tool rD5 can be attached to and removed from the holding recess 2 without using adhesive, as shown in FIG. Fitted and retained. In addition,
The screw cap 6 has a rotation recess 6 that opens on the end surface of the center part.
b, and a positioning pin hole 6c extending from the bottom of the recess 6b to the tip side.

The fixture 1 with the tool ID 5 fitted and retained in the holding recess 2 as described above is used by being attached to the tool holder 7, as shown in FIGS. 2 and 3.

That is, the tool holder 7 is provided with a tool holder 7a at its tip portion that holds the tool 8 in a removable manner, and a circumferential groove portion 7b in the middle portion so that an exchange arm (not shown) of an automatic tool changer can be engaged with the tool holder 7. A taper shank 7c is formed at the proximal end, and a pull stud 7 protrudes from the proximal end of the shank 7c.
d is formed. Note that the configuration of the tool holder 7 is similar to that of a conventional standard tool holder. A large outer diameter portion 7e is formed in the intermediate portion of the tool holder 7 and continues to the base end side of the circumferential groove portion 7b, and a mounting recess 7f is formed in a part of the large outer diameter portion 7e in the circumferential direction. A threaded hole 7g and a pin hole 7h are formed in parallel at the bottom of the mounting recess 7f. One end of the positioning pin 9 is inserted into the pin hole 7h, and the other end of the pin 9 is made to protrude from the bottom of the mounting recess 7f. Then, the fixture 1 holding the tool ID 5 is fitted into the mounting recess 7f, and the positioning pin hole 6C of the screw cap 6 attached to the holding recess 2 is fitted into the other end of the positioning pin 9.

Note that the positioning pin 9 is located in the positioning pin hole 6C of the screw cap 6.
It is also possible to fit the fitting 9 in advance into the bottle hole 7h provided at the bottom of the mounting recess 7f when fitting the fixture 9 into the mounting recess 7f.

Furthermore, a bolt 10 is inserted into the mounting hole 4 provided in the fixture 1, and this bolt 10 is inserted into the tapped hole 7 provided at the bottom of the mounting recess 7f.
The fixture 1 is removably fixed to the tool holder 7 by tightening to the angle g. In this fixed state, the attachment l is housed in the attachment recess 7f such that the back surface is supported by the bottom of the attachment recess 7f and the front surface does not protrude from the outer peripheral surface of the large outer diameter portion 7e.
The head 10a of the bolt 10 is accommodated in the large diameter portion 4a of the attachment hole 4.

Tool holder 7 with fixture 1 attached as described above
, along with the tools 8 attached to them, are placed in an automatic tool changer (not shown), and by the operation of this changer, as shown in FIG. It is attached to the main shaft 12 which is pivotally supported. A detection sensor 13 is fixed to the tip of the spindle head 11 via a sensor mounting member 14, and this sensor 13 and
The fixture l of the tool holder 7 attached to the spindle 12 is placed opposite to it as shown in FIG. 4, and the sensor 13 reads tool information such as the tool identification number of the tool ID 5 held on the fixture 1. , NC of machine tools! Compare with the tool code No. wired in the II control circuit, etc., and check the No. of both.
, match, the workpiece is machined using the tool 8 mounted on the tool holder 7 by rotating the spindle 12. If the numbers do not match, the tool and tool holder are replaced with the required one by appropriate means without performing any machining. In this embodiment, since the fixture 1 is made of a non-magnetic material such as nylon, the accuracy of the sensor 13 that detects the information of the tool ID 5 held in the fixture I is lower than that of a conventional sensor whose surroundings are made of steel. This is an improvement over magnetic materials.

Furthermore, in order to replace the tool ID 5 attached to the tool holder 7 via the fixture 1, remove the bolt 10 that fastens the fixture 1 to the large outer diameter portion 7e of the tool holder 7, and then Remove it from the mounting recess 7f of the holder 7. after that,
Remove the screw li[6 from the holding recess 2 of the fixture l and remove the tool ID5 from the holding recess 2. And another tool ID
After fitting into the holding recess 2 as described above, the holding recess 2
Then, the screw cap 6 is tightened to fit and hold another tool ID into the holding recess 2, and the mounting portion 3 of the fixture 1 is tightened and fixed to the large outer diameter portion 7e of the tool holder 7 with the bolt 10. With these, it is possible to attach and detach the tool ID 5 and the fixture 1 without using adhesives.

In the above embodiment, the screw cap 6 that is threadedly fitted into the fixture 1 and the bottom of the mounting recess 7f of the tool holder 7 are connected by the positioning pin 9, and a bolt is connected to the bottom of the mounting recess 7f of the tool holder 7. Since the mounting portion 3 of the fixture 1 is tightened at step 10, the fixture 1 can be positioned with respect to the tool holder 7 at two locations, and the positioning accuracy can be improved. Also, bolt 1
The mounting portion 4 may be fastened and fixed to the bottom of the mounting recess 7f using screws instead of the screws.

Furthermore, as illustrated in FIG. 5, the fixture l is removably fixed to the tip end step 71 of the circumferential groove 7b of the standard tool holder 7, or fixed to the chip cover of the tool holder. Can be fixed in place on the holder. In addition, in Figure 5,
The same reference numerals as in FIGS. 1 to 4 indicate corresponding parts. The tool ID5 is not limited to the one that is fitted and held in the holding recess 2 using the screw M6, but can be changed as appropriate as long as it can be removably fitted and held in the holding recess 2 without using an adhesive. Further, the detection sensor may be provided at an appropriate location on the machine tool side so as to face the tool ID held on the fixture, or may be movable.

(Effects of the Invention) As explained above, the tool ID fixture of the present invention has the following features:
Since the holding portion that removably fits and holds the tool ID and the mounting portion that is removably fixed to the tool side with screws are integrally formed, the following effects can be obtained.

That is, in the tool ID fixture according to the present invention, the tool ID is fitted into the holding recess without the fixture being attached to the tool holder, the screw cap is tightened in the holding recess, and the tool ID is held by the second screw cap. By pressing the tool ID against the bottom of the recess, the tool ID can be removably held in the holding recess without using an adhesive.
The mounting part of the fixture holding the tool can be removably fixed to the tool holder using screws such as bolts or screws. For this reason, even if the main spindle of a machine tool is rotated at high speed and a tool attached to the main spindle via a tool holder performs machining such as cutting on the workpiece, the fixture may come off from the tool holder or the tool may be removed from the fixture. The ID will not come off. Also, the tool ID
When replacing the tool, when removing the fixture from the tool holder or removing the tool ID from the holding recess of the fixture, no adhesive is used to secure the tool, so there is no risk of damaging the tool or leaving adhesive behind. The tool ID and fixture can be removed without having to do anything, and the tool ID can be easily replaced in a short time.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing a tool ID fixture according to an embodiment of the present invention, FIG. 2 is a sectional view showing an example of the tool ID attached to a tool holder, and FIG.
Fig. 4 is a longitudinal cross-sectional view showing the state in which the tool holder with the attached tool ID attached is attached to the main shaft of a machine tool, Fig. 4 is a cross-sectional view taken along the line ■ to ■ in Fig. 3, and Fig. 5 is a tool ID installation according to an embodiment of the present invention. It is a schematic side view which shows the other side of the state where the tool was mounted on the tool holder. 1... Mounting tool, 2... Holding recess, 3... Mounting part,
4... Mounting hole, 5... Tool ID, 6... Screw cap, 7... Tool holder, 8... Tool, 9... Locating pin, 1o... Bolt, 11...・Spindle head, 1
2...Main shaft, 13...Detection sensor. Fig. 1 Fig. 2 Fig. j Procedure master's formal document (method) February 20, 1991

Claims (1)

[Claims] A tool ID mount characterized by integrally forming a holding recess into which a tool ID is removably fitted and held, and a mounting part which is removably fixed to the tool side with a screw.