JPS6317615Y2 - - Google Patents

Description

[Detailed description of the invention] <Technical classification/field> The disclosed technology belongs to the field of structural technology for mounting devices such as drilling tools.

<Explanation of the gist> This invention has a long mounting hole formed in the longitudinal direction inside the tool mounting body to which a tool such as a drill is attached, and a long mounting hole is formed in the lateral direction perpendicular to the long mounting hole. A tool mounting system in which the tool mounting body is provided with a side locking device such as a fixing screw, and a tool mounting position adjustment device is provided within the long mounting hole to adjust the longitudinal position of the mounted tool. This is a device-related device, in particular, in the long mounting hole, a spool serving as a tool mounting position adjustment device that brings the tip into contact with the end of the tool fixes the proximal end of the spool to the tool mounting body. The tip of the bullet is brought into contact with the tip of the bullet, and its position in the longitudinal direction can be moved freely.
This invention relates to a tool mounting device in which a fixing screw for the adjustment portion of the tool mounting position adjusting device is provided on the tool mounting device main body in a direction perpendicular to its axis.

<Prior Art> As is well known, various processes are necessary in the manufacture of metal products, and drilling also occupies an important part of the seed forming process.

Drills and end mills are used for the seed hole drilling process, and these tools are naturally tightened and fixed to a tool mounting device in order to maintain their position and orientation during the hole drilling process. ,
Further, it is necessary to be able to adjust the length direction depending on the processing stage.

Therefore, a tool mounting device for tightening and fixing a tool has a function of fixing the tool and also a function of adjusting the position in the longitudinal direction.

To briefly explain the conventional tool mounting device 1 based on FIG. 1, a long mounting hole is bored in the longitudinal direction inside the tool mounting body 2, and a female threaded portion is provided approximately in the center of the tool mounting body 2. 4 is threaded and communicates with a hole 6 into which a tool 5 at the tip is fitted and an adjustment hole 7 at the rear, and an adjustment screw 8 of a predetermined length as a tool attachment position adjustment device is screwed into the female threaded portion 4. so that its tip abuts against the rear end of the tool 5 inserted and fitted into the fitting hole 6 to receive cutting resistance, and
Fixing screws 10, 10 are screwed into the female threads 9, 9 bored in the tool mounting body 2 across the fitting hole 6, thereby fixing the tool 5 as a side lock device.

<Problems with the prior art> However, such a conventional tool mounting device 1
In this case, when the type of workpiece (not shown) or the drilling conditions change and the mounting length, position and orientation of the tool 5 with respect to the mounting long hole device 1 are changed, the adjustment screw 8 of the tool mounting position adjustment device is changed. It is necessary to adjust the forward and backward movement of the long mounting hole 3 relative to the female thread 4.

However, in this case, apart from releasing the fixing screws 10, 10 from the tool 5, the tool 5
Once pulled out from the fitting hole 6 of the long mounting hole 3,
Insert a screwdriver through the fitting hole and tighten the adjustment screw 8.
The adjustment screw 8 must be rotated by placing it in contact with the adjustment screw 8, or a wrench must be inserted through the adjustment hole 7 at the rear to rotate the adjustment screw 8, which is extremely complicated and inefficient. In addition to the disadvantage of poor workability, when inserting a screwdriver, spanner, etc. from the front fitting hole 6, it may damage the entrance of the fitting hole 6 due to the possibility of interference with other equipment. There were some flaws that could have caused this.

<Purpose of the invention> The purpose of this invention is to solve the technical problem of the tool mounting device for tightening, fixing, and releasing and adjusting tools such as drilling tools based on the above-mentioned conventional technology, and to While using the fixing function as it is, the longitudinal position can be adjusted freely with good workability, and the precision of the long hole for mounting the tool is not impaired in any way. It is an object of the present invention to provide an excellent tool mounting device which is quick and efficient in operation and which benefits machining applications in the metal product manufacturing industry.

<Structure of the device> In accordance with the above-mentioned purpose, the structure of this device, which is summarized in the scope of the above-mentioned utility model registration claim, is that in order to solve the above-mentioned problems, a long hole for mounting is formed in the longitudinal direction of the tool mounting device. A predetermined tool was inserted into the fitting hole at the tip of the elongated hole with the fixing screw as a side lock device intersecting the fitting hole loosened, and its rear end was formed at the rear of the elongated hole of the elongated mounting hole. Push in the spool as a tool attachment position adjustment device, which is interposed between the bullet and the tool, against the elasticity of the bullet inserted at the rear end of the adjustment hole, and insert it into the fitting hole to adjust the predetermined position. Tighten the intersecting fixing screws to lock them on the side, and then, with the adjustment hole facing the spool, screw the fixing screw screwed into the tool mounting body, and use its tip to secure the spool of the tool mounting position adjustment device. abutting the adjustment part to lock the spool, thereby supporting axial force during machining of the tool;
When adjusting the longitudinal position of the tool,
Loosen the fixing screws for the fitting hole, loosen the fixing screws for the spool, move the tool forward and backward against the effect of the bullet, and then tighten and fix each fixing screw again to ensure smooth and easy operation. Technical measures have been taken to enable this to be carried out both accurately and accurately.

<Embodiment - Configuration> Next, one embodiment of this invention will be described as follows based on FIG. 2. Note that the same parts as in FIG. 1 will be explained using the same reference numerals.

Reference numeral 1' denotes a tool mounting device that constitutes the gist of this invention, and a long hole 3' for mounting is formed as a long hole in the longitudinal direction inside the tool mounting body 2 from the right side in the figure, and a fitting hole is formed. , and an adjustment hole 7', and a pair of female screws 9, 9 are threaded in the fitting hole 6 orthogonally to each other, and fixing screws 10, 1, respectively.
0 is threaded.

Furthermore, a resilient spring 11 is provided at the rear end of the adjustment hole 7', and a female thread 12 is threaded at the tip of the adjustment hole 7', so that another fixing screw 13 can be screwed into the adjustment hole 7'. is screwed on.

A spherical pressure contact 15 having a flat contact surface 14 is held at the tip of the fixing screw 13 so as to prevent it from coming off, and is supported three-dimensionally so as to be rotatable.

Further, a spool 16 as a tool attachment position adjusting device is loosely inserted into the front part of the adjustment hole 7', and the tip of the elastic spring 11 as the elastic spring comes into contact with a flange 17 provided at the rear end. Normally, the spool 16 in the figure is elastically biased in the direction of the fitting hole 6.

Further, in the drawing, the lower side of the spool 16 relatively slides and engages with a key 18 inserted and fixed into the tool mounting body 2, and locks the spool 16 in the rotational direction and moves it in the longitudinal direction. Keyway 19 for freedom
Further, on the opposite side of the keyway 19, a tapered surface 20 is formed as an adjustment part halfway forward from the flange 17, and a tapered surface 20 is formed as an adjustment part, so that the spherical pressure contact 15 provided at the tip of the fixing screw 13 can be adjusted. It is adapted to abut against the contact surface 14.

In addition, 5 is a tool, for example, a drill for making holes.

<Embodiment - Effect> In the above configuration, the tool 5 is attached to the tool mounting device 1'
When setting and fixing the spool 16, loosen the fixing screws 10, 10 in the fitting hole 6, and loosen the fixing screw 13 sufficiently to make the spool 16 movable.

Then, insert the tool 5 through the fitting hole 6 of the long mounting hole 3', bring the rear end into contact with the tip of the spool 16, push it into a predetermined position, set it, and screw in the fixing screws 10, 10. Then, secure the tool shank and lock it on the side.

In the state where the posture is determined, the spool 16 compresses the elastic spring 11, but if the fixing screw 13 is screwed in this state, the spherical pressure contact 15 provided at the tip thereof
The contact surface 14 at the tip thereof follows the tapered surface 20 of the adjustment portion of the spool 16 and abuts flush with the same.

Therefore, when the fixing screw 13 is strongly screwed and tightened, the contact surface 14 of the spherical pressure contact 15 presses against the tapered surface 20 of the spool 16, and as a result, the spool 16 is fixed in the adjustment hole 7. Therefore, the tool 5 is side-locked by the fixing screws 10, 10, and the axial load is supported by the fixed spool 16.

The tool 5 thus set and fixed is used to drill a predetermined hole in a workpiece (not shown).

Therefore, when the workpiece (not shown) is changed or the drilling conditions change, the length and posture of the tool 5 must be changed with respect to the tool mounting device 1'.
In this case, the fixing screws 10, 1
0 and 13 are loosened and screwed back, the spool 16 becomes free, and although its tip is pressed against the rear end of the tool 5 by the elastic spring 11, it does not move. be left in a state of freedom.

Therefore, when the tool 5 is moved back and forth to a predetermined position and adjusted to the set position inside the long mounting hole 3',
The spool 16 is connected to the key 1 by the elastic spring 11.
8 and the keyway 19, it is immovable in the circumferential direction and movable in the longitudinal direction.
It moves forward and backward along with the tool 5.

After the tool has been adjusted to a predetermined position, the fixing screws 10, 10 are screwed again to tighten and fix the tool shank, as described above, to lock the tool in place.

Then, when the fixing screw 13 is screwed again, the spherical pressure contact 15 at the tip also moves forward as described above, and its contact surface 14 again follows the tapered surface 20 of the adjustment surface of the spool 16 and comes into contact with it. , the spool 16 is fixed in position and is again adapted to support the axial load of the tool 5.

Therefore, when the prescribed hole drilling process is performed again,
The axial load of the tool 5 is borne by the spool 16 fixed by the fixing screw 13 and the spherical pressure contact 15, and the spool 16 is side-locked by the fixing screws 10, 10 so that it does not come out, and the lateral load is taken care of. is well supported.

It goes without saying that the embodiment of this invention is not limited to the above-mentioned embodiment, and for example, the fitting hole 16
The side lock for the tool may be a collection chuck in addition to the fixing screw, and the adjustment surface of the spool may be not only a tapered surface but also a stepped rack shape, and depending on the design, it may have a multi-step rack shape. Various embodiments such as a pin hole can be adopted.

<Effects of the invention> According to this invention, in a tool mounting device that basically supports and fixes tools such as drilling tools such as drills and end mills, side locking is reliably guaranteed and the axial load during machining is reduced. has the effect of being reliably supported by the tool mounting position adjusting device, and even when the tool is adjusted to a desired position by the tool mounting position adjusting device, the side lock is ensured at the adjusted position. At the same time, the axial load can be supported.

The spool of the tool attachment position adjusting device is movably provided with respect to the bullet, one end of which is fixed in the long longitudinal attachment hole provided in the tool attachment body, and the tip thereof is attached to the tool attachment position. By simply loosening the side lock device and sliding the tool within the long longitudinal mounting hole, the tool mounting position adjusting device can be moved back and forth against the drag of the ammunition. Therefore, there is no need to remove the tool from the tool mounting device, and there is no need to insert a screwdriver or spanner through the long mounting hole formed inside the tool mounting device. This provides an excellent effect of not damaging the cavity and causing looseness when setting the tool, or reducing durability.

However, there is also the effect that there is no change in the axial load supporting function for the tool.

Furthermore, even if the tool is removed from the tool mounting device, there is no need to pull it out, so there is no need to worry about resetting the tool every time the position is adjusted. Therefore, there is also the effect that accurate position adjustment work can be performed more accurately.

[Brief explanation of drawings]

FIG. 1 is a partially sectional side view of a tool mounting device based on the prior art, FIG. Perspective view of tool mounting position adjustment device,
FIG. 4 is a partial perspective view of a fixing screw for the tool attachment position adjustment device. 2... Tool mounting body, 3'... Long cavity for mounting, 1
0... Side lock device, 16... Tool mounting position adjustment device, 1'... Tool mounting device, 11... Bullet machine,
16... Spool, 20... Adjustment surface (tapered surface),
13... Fixing screw, 15... Spherical pressure contact.

Claims (1)

[Claims for Utility Model Registration] (1) A long mounting hole is formed in the longitudinal direction of the tool mounting body, and a side lock device for the tool shank is provided intersecting the long mounting hole. In a tool mounting device in which a tool mounting position adjustment device is provided, a spool of the tool mounting position adjustment device is movably provided in the long mounting hole via a bullet, and the tool mounting position is adjusted. A tool mounting device characterized in that a fixing screw is attached to the tool mounting main body so as to face the adjustment section of the adjustment device. (2) Claim No. 11 of the above utility model registration characterized in that the adjustment surface of the spool is a tapered surface.
Tool mounting device as described. (3) The tool mounting device according to claim 1, wherein the fixing screw has a spherical pressure contact at its tip that makes surface contact with the tapered surface.