JPS5828062B2 - Feed control device in multi-axis cutting exchange head - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a feed control device in a multi-axis cutting interchangeable head.

For multi-axis cutting interchangeable heads, replace the head.

Since the feed control differs accordingly, it is necessary to adjust the dog position.

FIG. 1 shows conventional adjustment means, with reference numeral 1 a slide base, 2 a carriage, 3 a forward limit switch, 4 a cutting feed limit switch, and 5 a backward limit switch.

Therefore, for adjustment, use the forward end dog 6, the cutting feed dog 7, and the backward end dog 8 in the groove drilled on the side of the carriage.
This method involves loosening the set screws 6', 7', and 8', moving them as appropriate, and then tightening them again to fix them. However, this method has the disadvantage that adjustment errors are inevitable and accurate products cannot be obtained, as well as inefficiency. It was bad.

The present invention aims to eliminate such drawbacks, and an example of implementing the present invention will be described below based on the drawings of FIGS. 2 to 4.

Figure 2 is a front view of the entire device, Figure 3 is xx' in Figure 2.
4 is a perspective view of the cassette plate.

In each figure, 10a and 10b are brackets provided on the sides of the carriage 2, which are mounted so as to face each other at a certain distance, and have U-shaped guide grooves 11a and 11b on the inside. is bored, and stopper plates 12a and 12b are provided at the lower end of the groove to close it.

Reference numerals 13a and 13b are retaining pins for temporarily fixing a cassette plate, which will be described later.

This configuration is shown in detail in FIG.

That is, the inner surface of the knob P of the engaging pin 13a (13b is the same, and the reference numerals are omitted hereafter) is formed into an inclined wall surface A having a certain angle, and the upper surface of the cylindrical tube 14a is formed into an inclined wall surface opening having the same angle. By inserting the inside of the opening and repelling the spring 15a between it and the tip projection T, the inclined wall surface A and the opening are made to coincide with each other as shown by the solid line in the first illustration.

The tip protrusion T protrudes into the groove 11a, and when the knob P is rotated 1800 degrees, the tip protrusion T is pushed back to the chain line position against the spring 15a. It is designed to be removed from inside the groove 11a.

Reference numeral 16 denotes a cassette plate, and in the five examples, it is configured as an L-shaped plate as shown in FIG.

It is inserted into the guide grooves 11a, 11b of 10b and slides.

17a and 17b are circular holes bored in the flange edges K and K', and these circular holes are connected to the engaging pins 13a and 13.
It is provided in a positional relationship to engage with the tip end projection T of b.

Note that two sliding grooves 18a and 18b are bored in the horizontal wall 16b of the cassette plate 16 in its length direction, and a forward limit dog 6 and a backward limit dog 8 are provided in the groove 18b, and the groove 1
A cutting feed dog 7 is provided at 8a.

At this time, each dog can slide freely within each groove, but
The tightening is fixed at a specific position within each groove using respective setscrews.

In FIG. 5, 19 is a drive head, 20 is a main shaft prime mover, 21 is an exchangeable head, 22 is a spindle, and 23 is a guide plate.

The present invention is constructed as described above.

The respective feed control means for the various exchange heads are installed in advance for each workpiece or each process using a large number of the cassette plates.

That is, on each cassette plate, a forward end dog 6, a backward end dog 8, and a cutting feed dog 7 are set at specific positions within the grooves 18a and 18b, respectively, using set screws. When replacing, the cassette plate with the corresponding feeding means set therein is taken out and inserted into the guide grooves of the brackets h10a, 10b.

During insertion, both end edges K, K,' of the cassette plate descend while sliding in the grooves, and the lower edge touches the stopper plate 12a,
12b and stops.

At this time, the engagement pin 13a. 13b is a spring 15a;
15b, but when the round holes 17a, 17b arrive, they are automatically pushed into the grooves and engaged.

As described above, work preparation is easily completed, and when the carriage 2 moves on the slide base 1, its feed speed is controlled by the contact between each dog provided on the cassette plate and each limit switch provided on the side of the slide base. The cutting feed, fast return, fast forward, etc. can be changed at any time.

The state in which the feed rate can be changed is the same as in the conventional case, so the explanation will be omitted.

In the present invention, the cassette plate can be easily removed by rotating the engagement pins 13a and 13b 1800 degrees after the work is completed, and the cassette plate can also be easily removed.

According to the present invention, even if the visiting head is replaced, the feed control can be performed under the same conditions as originally set by simply selecting and mounting a cassette plate for each head at any time. There are no mistakes at all,
Machining accuracy is significantly improved.

Moreover, it is extremely important to contribute to improving work performance.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing a conventional feed control means, Fig. 2 is a front view of the entire device, Fig. 3 is a detailed view cut along the line XX' in Fig. 2, and Fig. 4 is a partial perspective view of the cassette plate. be. 1...Slide base, 2...Carriage, 3...Move forward limit switch, 4...
...Cutting feed limit switch, 5...
Backward limit switch, 6... Forward limit dog, 7... Cutting feed dog. 8...Reverse limit dog, 10a, 10b...
...Bracket, 11a, 1 ib""" guide plate, 13
a, 13b... Engaging pin, 16... Cassette plate, 18a. 18b...Sliding groove, 19...Drive head, 21...Replaceable head, 22...Spindle.

Claims (1)

[Claims] 1. A bracket formed by drilling U-shaped guide grooves on the side surface of the carriage is installed with the guide grooves facing each other, and a cylindrical pipe is provided in the front position of each guide groove, and from the front thereof, a bracket is installed. The engaging pin that passes through the tube and reaches the guide groove is pinched so that the inner surface is shaped like an inclined wall surface of a certain angle, and is provided in an elastic state between the tip projection and the other end via a spring. The cassette plate that incorporates each dog for rapid forwarding, cutting feed, and quick return is shaped like an L, and two sliding grooves are bored in the horizontal wall of the cassette plate, and one groove has a forward limit dog. In addition to providing a retraction limit dog in the groove and a cutting feed dog in the other groove, a circular hole is bored in both end edges of the vertical wall into which the tip projection of the engagement pin can be inserted and engaged. A feed control device for a multi-axis cutting interchangeable head, characterized in that the feed control device is detachably fixed to a U-shaped guide groove of a bracket and is configured to be replaceable so as to obtain different feed control as appropriate.