JPS5839849Y2 - Clamping mechanism for large-scale processing machines - Google Patents

Description

[Detailed description of the invention] This invention supports a blade arbor that is driven and rotated by a motor in a motor case, and has a processing machine body formed by attaching, for example, a flat bit and a dovetail bit to both ends of the blade arbor, and a vice mechanism. The bits are not rotatably supported, but are rotated so that both of the above bits can be used selectively, and the workpiece a is fitted with a large insert B or a large insert C as shown in Figure 1.
This relates to a clamping mechanism for a large-input processing machine that enables high-precision, safe, and efficient processing with the machine body clamped on a workpiece material a, and the processing machine main body for the vice mechanism described above. The purpose is to easily and reliably perform vertical sliding, blocking and rotation, and tightening and loosening for stopping, respectively, by micro-angle screwing of the tightening nut and knob operation. This provides a clamping mechanism with

The drawings showing the embodiments of the present invention will be described in detail below.
First, the processing machine is composed of a processing machine main body 1 and a vice mechanism 2, as shown in FIGS. 2 and 3.

The processing machine main body 1 is supported in a motor case 3 in such a manner that a motor 4 and a blade arbor 5 are coupled to a motor shaft 4a by an appropriate power transmission mechanism 6 to be driven and rotated. At both protruding ends, a flat bit 7 for large-scale machining and a dovetail bit 8 for dovetail and dovetail groove machining are each removably attached to a collet chuck 9. A through hole 10 is provided at right angles to the plaid arbor 5, and a center bolt 13 is inserted into the square hole 12 of the slide plate 11 that is vertically assembled to the outside of the through hole 10 and the through hole 10.
The processing machine main body 1 is rotatably supported with respect to the slide plate 11 with a center bolt 13 as a rotation axis.

Here, a part of the center bolt 13 is a polygonal part 13.
a, and is fitted into the square hole 12 of the slide plate 11 to prevent rotation.

Further, a cover holder 14 is provided on the upper side of the slide plate 11, and can be opened and closed with a blade force of <-15, and is adapted to cover one of the two bits 7.8 that is not used. It is formed by pivoting.

The vice mechanism 2, which rotatably mounts the processing machine main body 1, is connected to a vice 16 and a support 1, as shown in FIG.
A front and rear sliding base 19 is fitted into two front and rear guide bars 18, 18 arranged in parallel between the two front and rear guide bars 18, 18 so as to be slidable in the front and rear direction by a front and rear feeding means 21 consisting of a front and rear feed screw rod 20 with a bundle 2Oa, A left-right sliding base 28 is fitted into the left-right guide bar 22 installed on the front-rear sliding base 19 so as to be slidable in the left-right direction by a left-right feeding means 24 consisting of a left-right feeding screw rod 23 with a bundle 23a. Further, the support 17 is provided with a clamp device 27 having a clamping screw 26 with a clamp plate 26a which is screwed back and forth when the bundle 25 is operated. As clearly shown in FIG. 2, a bundle 29 is rotatably supported by the slide plate 11 to prevent movement in the axial direction.A vertical feed rod 2 with a
9 are screwed together and a vertical feeding means 30 is provided.

Thus, the processing machine main body 1 has the above-mentioned back and forth feeding means 21.
．． The machine body 1 can be moved in the front and back, left and right, and up and down directions by the left and right feed means 24 and the top and bottom feed means 30, and the clamp mechanism 31 of the processing machine main body 1 is constructed as follows.

That is, as clearly shown in FIG. 2, the center bolt 13
protrudes into the vertically elongated window 28b of the left and right sliding base 28, and a tightening screw 32 having a knob 33 fixed to the tip thereof is coaxially screwed into the threaded portion 13b of the sliding plate 11. By abutting against and tightening this, the processing machine main body 1 is fixed to the slide plate 11 and rotation is prevented, and a male threaded portion 32 a is formed on the outer periphery of the tightening screw 32. The lever bundle 34
A tightening nut 34 with a is screwed together and placed between the left-right sliding base 28 and the knob 31, and by tightening this, the tip hits the opening edge of the vertically elongated window 28 b of the left-right sliding base 28 and slides left and right. After fixing the slide plate 11 to the movable base 28 and loosening it to release the fixation of the slide plate 11, further loosening causes frictional contact with the knob 33, and the tightening screw 32 is loosened and tightened. It is constructed so that the attached screw 32 and center bolt 13 can be loosened.

Further, the left and right sliding base 28 is provided with a vertical groove 28C, into which the slide plate 11 is fitted so as to be slidable in the vertical direction, and the slide plate 11 is provided with a lock plate as shown in FIG. 35 and a limit lever 36 are provided, while the motor case 3 has two poles at 180° intervals) 37
．． 37' and two microswitches 38 and 38' are provided respectively, and the processing machine main body 1 is rotated with respect to the slide plate 11, and the bolt 37 hits the lock plate 35 and stops. At this time, the limit lever 36 is activated. The limit I switch 38 is turned on, and the ten bit 7 is in use at this position. Also, by rotating the processing machine main body 1 180 degrees from the above position, the lock plate 35 and the limit lever 36 are connected to the other bolt 37' and The microswitch 38' is turned on when it hits, and the dovetail bit 8 is in use.
The circuit is configured such that each bit 7 or 8 rotates in the forward direction in its respective usage state by turning on the push button 39 in the state where the bit 7 or 8 is in use.

In the above configuration, the processing machine main body 1 clamps the workpiece 40 by the vise mechanism 2 and is held on the processing surface thereof, so that the motor 4 and the field 4 are activated by the push button 39.
' to drive and rotate the bit, and each of the above-mentioned feeding means 2
By the operations 1, 24 and 30, a large insertion or a dovetail groove or a large insertion and hook is machined to a predetermined depth in the workpiece 40. When moving the processing machine main body 1 up and down or rotating it with respect to the left and right sliding base 28 to selectively use 7.8, loosen the tightening nut 34 using the lever bundle 34a of the clamp mechanism 31. Since the tension of the slide plate 11 is released, by operating the vertical feed means 30 in this state, the processing machine main body 1 can be moved vertically as desired.

At this time, since the tightening screw 32 and the center bolt 13 are tightened, the processing machine main body 1 does not rotate with respect to the slide plate 11, so that the bit center does not become out of alignment.

When the tightening nut 34 is loosened from the above-mentioned position, it comes into frictional contact with the knob 33, and when it is screwed further, the tightening screw 32 is loosened through the knob 33, and the tension with the center bolt 13 is released. , the processing machine main body 1 can rotate with respect to the slide plate 11.

Also, the processing machine main body 1 is fixed by tightening the screw 3 using the knob 33.
On the other hand, the slide plate 11 is fixed by tightening the tightening nuts 34.

As explained above, according to the clamp mechanism of the large-input processing machine according to the present invention, the left and right sliding base 28 of the vice mechanism 2
When fixing the processing machine main body 1 to the slide plate 11 so that it can be moved up and down and rotated, the processing machine main body 1 is fixed to the slide plate 11 using the center pole I 13 and the tightening screw 32 with the knob 33. On the other hand, left and right sliding base 2
Since the slide plate 11 is fixed to the bolt 8 independently using the tightening screw 32 and the tightening nut 34, when the processing machine main body 1 is moved up and down, the tightening nut I・It can be done by simply screwing the knob 34 at a minute angle while the rotation is blocked, and when rotating to select the bit, loosen the tightening nut 34 further.
3, the tightening screw 32 and center bolt 13 can be loosened from each other, so the vertical movement can be made without relatively changing the center of the pins 7 and 8 and the vertical height. Alternatively, the rotational operation and the fixing at the adjusted position can be easily and accurately performed using the tightening nut 34 and the knob 33.

Furthermore, the clamping mechanism can be easily constructed with only a few members, the center bolt 13, the knob-equipped tightening screw 34, and the tightening nut 34, so that it can be manufactured at low cost.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a workpiece with a large insert and a hook machined, Fig. 2 is a longitudinal sectional view showing the main body of the processing machine together with the clamp mechanism of the large insert, etc., and Fig. 3 is the same. FIG. 4 is a plan view of the processing machine, and is a front view showing the rotary spacing mechanism of the main body of the processing machine. 1...Processing machine body, 2...Vise mechanism, 4...Motor, 5...Blade arbor, 7, 8...Bit , 10... Through hole, 11... Slide plate, 13...
Center bolt, 29... Left and right sliding base, 3
2...Tightening screw, 32a...Male thread part, 33...Knob, 34...Tightening nut), 34a...・Lever bundle.

Claims (1)

[Scope of utility model registration request] A processing machine main body 1, which is equipped with bits 7 and 8 at both ends of a blade arbor 5 driven and rotated by a motor 4, is rotated and vertically moved by a left and right sliding base 28 of a vise mechanism 2 so that both bits can be selectively used. This is a classic mechanism for a processing machine such as a large insertion machine that is slidably attached, and has a through hole 1 arranged at right angles to the plaid arbor in the center of the side wall of the main body of the processing machine.
0 and insert the center bolt 13 into the slide plate 1.
A tightening screw 3 with a knob 33 is attached to the center bolt.
2 are screwed together, and a lever handle 34 is attached to the male threaded portion 32a of the tightening screw so that the left and right sliding base and the slide plate, and the slide plate and the processing machine main body can be tightened and moved, respectively.
A clamping mechanism for a processing machine such as a large insertion machine, characterized in that a tightening nut 34 with a is screwed between a left and right sliding base and a knob.