JPH0611725Y2 - Machine Tools - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a machine tool that can be used efficiently.

[Conventional technology]

A machine tool including a spindle, a drive motor therefor, a speed reduction mechanism, and a vertical feed mechanism is widely put to practical use as, for example, a tabletop drilling machine or a universal machine tool. Further, the processing head composed of the above-mentioned elements can be mounted on a support stand erected on a pedestal so as to be able to move up and down, and to be rotatable around the support pillar,
Furthermore, if necessary, an indexing device that rotates the machining head around an axis that is perpendicular to the spindle as a fulcrum and a horizontal arm that horizontally moves back and forth are provided to allow flexibility in machining posture changes and to respond to machining position changes. It has already been implemented to spread the word.

[Problems to be Solved by the Invention] However, all of the conventional machine tools of this type have only one machining table, and therefore, when a workpiece is set on the table, other workpieces are not supported. When it is required to process, (1) remove the set work once to process another work, (2) defer processing of another work, (3) move another work to another machine I had no choice but to adopt the method of processing with, and I could not expect efficient use of the same machine.

The present invention seeks to solve this problem.

[Means for solving problems]

This invention solves the above-mentioned problems by providing an auxiliary processing table capable of position adjustment and posture adjustment at the lower end of a column that supports the processing head in a vertically movable manner. That is, the spindle,
A machine tool equipped with its drive motor, speed reduction mechanism, and vertical feed mechanism is mounted on a pedestal erected on a pedestal so that it can rotate 360 ° around the stanchion including the lifting mechanism. Is a horizontal arm that is removably fitted to the bush fitted in the above-mentioned column, a sleeve that is fitted to the outer circumference of this arm so that the rotation angle on the arm can be changed, and a rotation is fixed to the outer circumference of this sleeve. An auxiliary machining table device consisting of a slide base that includes a slide position fixing means that is slidably fitted in the sleeve axial direction and a work support table that is rotatably mounted on the slide base around an axis perpendicular to the horizontal arm The present invention is characterized in that it is provided at the lower end portion of the support column located above the processing table.

[Action]

The auxiliary machining table device can be rotated 360 ° about the support column, like the machining head. Therefore, even if the work is set on the regular machining table, the auxiliary machining table device can be fixed at a position deviating from the regular table and another workpiece can be machined on the work supporting table of this device. .

Further, since the work support table described above allows rotation about a horizontal axis as a fulcrum and rotation about a vertical axis as a fulcrum, it is possible to change the working posture of the work in a wide range. In some cases, it becomes possible to process workpieces that cannot be performed, so the range of use and efficiency of use of the same machine are further increased.

〔Example〕

 The attached drawings show an embodiment of this invention.

1 in FIGS. 1 and 2 is a pedestal, on which a column 2 is fixedly erected at a fixed point. Further, a processing table 3 is provided on the pedestal in front of the support column 2 to be moved back and forth and left and right by a well-known feeding mechanism having an operation handle. Further, the support column 2 has a rack 4a capable of orbiting the support column along its surface, a pinion (not shown) meshed with the rack 4a in a slider 4b fitted to the support column, and input of rotational force to the pinion. A well-known lifting mechanism 4 including a handle 4c is attached, and a machining head 6 is connected via an index device 5 to the slider 4b that is guided by a column to move up and down.

The processing head 6 includes a spindle 7 and a drive motor 8 for the spindle 7.
And a deceleration mechanism for the spindle and a vertical feed mechanism built in the gear box 9. Since the deceleration mechanism and the vertical feed mechanism of this head are also well known, these are
Only the vertical feed handle 10 is shown and the illustration is omitted.

The index device 5 is for rotating the machining head 360 ° around an axis perpendicular to the support column 2.
This is also a well-known device and is adopted as needed.

Further, the rack 4a has a lower end supported by a movable portion 11a of a bush 11 attached to the lower portion of the column 2 as shown in FIG. The bush 11 has a structure in which the movable portion is rotatably attached to the upper end of a main body portion 11b which is fitted around the outer circumference of the support column 2 so that the auxiliary working table device 20 characterizes the present invention. Is installed. 1
2 is a saucer for chips and cutting oil, 13 is a control box, 1
Reference numeral 4 denotes a foldable second processing table which is attached to the side surface portion or the back surface portion of the pedestal 1 at a height position different from that of the table 3.

The body 11b of the bush 11 may be integrally formed with the stand 15 that supports the support column 2.

Next, the auxiliary processing table device 20 will be described. Fourth
Reference numeral 21 in the drawings and FIG. 6 is a horizontal arm, and one end of this arm is provided with a clamp ring 22 to which one end of a semicircular ring is hingedly connected by a pin 22a and the other end is connected by a tightening screw 22b with a handle. Has been. The clamp ring 22 is fitted onto the main body portion 11b of the bush 11 and fixed by tightening the screw 22b.

A sleeve 23 is loosely fitted around the outer circumference of the horizontal arm 21. This sleeve 23 having a flange 23a at one end is fastened with a nut 24 with a handle screwed to a screw part at the other end of the horizontal arm 21 to prevent rotation, and a lever for loosening the nut 24 and rotating it on the horizontal arm. it can.

A slide base 25 is fitted around the outer circumference of the sleeve 23 by a key 26 so as to be slidable in the sleeve axial direction. 27 is a set screw for fixing the slide base at an arbitrary position.

Reference numeral 28 denotes a work support table mounted on the slide base 25, and when the central clamp screw 29 is loosened, the work support table can rotate on the slide base around the screw. 28a is a T slot provided on the table 28 for the purpose of holding the work fixing bolt.

It should be noted that, between the flange 23a of the sleeve 23 and the flange 30 on the side of the horizontal arm on which the sleeve 23 abuts, unevenness or a latch that engages when the sleeve 23 is rotated at a constant angle is provided, or friction is increased. By giving a treatment or the like, the rotation preventing effect of the sleeve 23 during clamping can be enhanced. The same applies to the interface between the slide table 25 and the table 28.

In addition, between the flanges 23a and 30 and the stand 15
It is desirable to provide a scale for indicating the rotation angle between the main body 11b of the flange and the independent body.

In addition, between the flanges 23a and 30, and between the slide table 25 and the table 2 unless otherwise restricted in terms of cost and dimensions.
An index device for indexing the rotation angle may be interposed between the index device and the index device 8.

The auxiliary processing table device 20 configured as described above can be rotated to any position around the column 2, and therefore,
Even if the work A is set on the table 3, the device 2
0 can be used to machine other workpieces with the same machine. Further, the table 28 can rotate about the arm 21, slide along the sleeve 23, and rotate on the slide base, so that it is possible to cope with diversification of the holding posture of the work.

〔effect〕

As described above, the machine tool of the present invention is provided with the auxiliary processing table at the lower end of the supporting column that supports the machining head, which is capable of position adjustment in the horizontal plane centering on the supporting column and adjustment of the posture of the table surface. There is an effect that the machine of the table can be efficiently operated to rationalize the work and improve the productivity.

[Brief description of drawings]

FIG. 1 is a side view showing an example of the machine tool of the present invention, FIG. 2 is a front view thereof, FIG. 3 is a sectional view showing a mounting state of a flange, and FIG. 4 is a plan view of an auxiliary machining table device. 5 is a partially cutaway side view thereof, and FIG. 6 is a sectional view taken along line XX of FIG. 1 ... Pedestal, 2 ... Post, 3 ... Processing table, 4 ...
Lifting mechanism, 5 ... Index device, 6 ... Machining head, 7 ... Spindle, 8 ... Drive motor, 9 ... Gear box, 11 ... Bush, 12 ... Receiving tray, 13 ...
Control box, 20 Auxiliary processing table device, 21
...... Horizontal arm, 22 ...... Clamp ring, 23 ...... Sleeve, 24 ...... Nut with handle, 25 ...... Slide base, 26 ...... Key, 27 ...... Set screw, 28 ...... Work support table, 29 ...... Clamp screw.

Claims (1)

[Scope of utility model registration request] 1. A spindle, a drive motor therefor, a reduction mechanism,
In a machine tool in which a machining head equipped with a vertical feed mechanism is attached to a column vertically installed on a pedestal so that it can be rotated 360 ° around the column including an elevating mechanism, a bush in which a clamp ring at one end is fitted to the column A horizontal arm that is detachably fitted to the sleeve, a sleeve that fits on the outer circumference of the arm so that the rotation angle on the arm can be changed, and a sleeve that can be slidably mounted on the outer circumference of the sleeve so that it can slide in the axial direction of the sleeve. The auxiliary machining table device consisting of the slide table including the fixing means for fixing the slide position and the work support table mounted on the slide table so as to be rotatable around the axis perpendicular to the horizontal arm is installed above the regular machining table. A machine tool, characterized in that it is provided at the lower end of the positioned post.