JPS588436Y2 - Cutting waste removal device for slide covers in machine tools - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for removing cutting debris from a slide cover that protects the sliding surfaces of columns and knees of a machine tool.

In machine tools such as slicing machines, slide covers are stretched along the sliding surfaces of columns and knees in order to protect them from cutting debris and the like.

That is, a cylindrical body that rolls up the cover using a spring is attached to the upper end of the column, and the cover is pulled down along the sliding surface of the column, and then the cover is pulled forward in an L-shape by a guide roller mounted on the back edge of the knee. The cover is bent to lie along the sliding surface of the knee, and the tip of the cover is bonded to the rear end surface of the saddle that fits over the knee.

For this reason, cutting waste was placed on the slide cover. When the slide cover moves, the cutting waste is rolled up by the guide rollers, which not only causes scratches on the slide cover, but also prevents the sliding cover from being rolled up and pulled out. The problem was that it made it impossible.

In order to eliminate the above problem, the present invention equips the guide roller with a cutting waste removal device to prevent cutting waste from getting into the guide roller and ensure smooth winding and pulling out of the slide cover. It was successful in doing so.

Next, the present invention will be briefly explained with reference to the drawings.

In FIG. 1, 1 is a vertical milling machine, 2 is a column established on the rear side (left side in the figure) of the base 3,
A knee 5 is fitted onto this sliding surface 4 so that it can move up and down.

The knee 5 is a vertical rod (
(not shown), and the knee moves up and down along with the vertical rod by the port and starboard sides of the handle 7.

Reference numeral 9 denotes a saddle that rests on the sliding surface 8 of the knee 5 and moves back and forth, and the table 10 with the workpiece K attached moves left and right on the saddle 9.

Reference numeral 11 denotes a spindle head cantilevered on the top of the column 2. A spindle 12 is vertically inserted near the tip of the spindle head, and a cutter 13 is attached to the lower end of this spindle, which is directed toward the workpiece K.

A cylindrical body 20 is attached to the upper end of the sliding surface 4 of the column 2 and is used to roll up the slide cover 21 using a built-in helical winding spring (not shown).

The slide cover 21, which is pulled out from the cylindrical body 20 against the winding force of the helical winding spring, has approximately the same size and width as both sliding surfaces 4 and 8.

24 is a guide roller, which is attached to both sides of the back edge of the sliding surface 8 of the knee 5).
The support shafts 24a, 24a are supported by 25.25, and the guide roller is rotatably mounted on the inner edge of the sliding surface 8 of the knee.

The slide cover 21 is now pulled down from the cylindrical body 20 along the sliding surface 4 of the column 2, and the bent portion thereof is bent forward in an L-shape by the guide roller 24 and placed on the sliding surface 8 of the knee 5. Along the same line, the cover tip 21a is fastened to the rear end surface of the saddle 9, which is fitted with the two, with a set bolt 26.

Thus, the slide cover 21 covers both sliding surfaces 4 and 8 and is rolled into the cylinder body 20 when the knee 5 rises and the saddle 9 retreats, and is pulled out from the cylinder body when the knee falls and the saddle moves forward. It becomes.

Reference numeral 30 denotes a cutting waste removal plate according to the present invention, which has a width and length that can cover the guide roller 24, and whose cross section is bent in an inverted dogleg shape, and support pieces 30a attached to both left and right ends; 30a is the support shaft 24a of the roller 24, 24
I agree to play with a.

The exclusion plate 30 has its lower edge 3 facing towards the saddle 9 side.
0b and the upper end edge 30C inclined toward the column 2 side are brought into contact with the upper surface of the slide cover 21 in an appropriate oblique posture to cover the guide roller 24.

Now, when the slide cover 21 moves in the direction of the solid line,
When the lower edge 30b of the exclusion plate 30 receives a clockwise rotational moment due to contact resistance with the slide cover, and the slide cover 21 moves in the direction of the chain line, the upper edge 30C
receives a counterclockwise rotational moment due to contact resistance with the slide cover, increasing the contact force with the slide cover on the entry side.

This contact force is set to an appropriate contact force, taking into consideration various conditions such as the coefficient of friction between the two, the contact angle, and the tension of the slide cover.

The present invention is constructed as described above and operates as follows.

When the cutter 13 cuts the workpiece K, the cutting waste S is scattered on the slide cover 21, but since the guide roller 24 is covered with the removal plate 30, the cutting waste S does not cover the guide roller 24.

When cutting and feeding the saddle 9 toward the column, the slide cover 21 moves in the direction of the solid line arrow while rotating the roller 24 clockwise as shown in FIG.

At this time, the lower end edge 30b of the exclusion plate 30 receives a clockwise rotational moment due to the contact resistance with the slide cover 21, and rotates to the solid line state, moving the slide cover along the sliding surface 8 of the knee 5 downward. (At this time, the upper edge 30C
is in slight contact with the slide cover).

Therefore, the cutting chips S on the slide cover 21 are reliably scooped up by the lower edge 30b of the removal plate 30, and even small chips and cutting oil are completely removed from being rolled into the guide rollers 24.

Further, when the saddle 9 is sent toward the front side, the slide cover 21 moves in the direction of the chain arrow while rotating the roller 24 counterclockwise.

At this time, the upper edge 30C of the exclusion plate 30 receives a counterclockwise rotational moment due to the contact resistance with the slide cover 21 and rotates as shown in the chain line, thereby moving the slide cover along the sliding surface 4 of the column 2 as shown in the chain line. (At this time, the lower edge 30b is
(light contact with the slide cover).

Therefore, in this case as well, the cutting oil and cutting debris S adhering to the vertical surface of the slide cover 21 are reliably wiped off by the upper edge 30C of the removal plate 30, and the winding up onto the guide roller 24 is completely eliminated.

Note that the present invention is not limited to the above-mentioned embodiments, and design changes can be made.

In order to remove cutting waste S more effectively, slide cover 2
Both edges 30b and 30C of the exclusion plate 30 that come into contact with the removal plate 1 may be coated with a group of brushes, felt, nylon, or the like.

According to the present invention, the guide roller provided at the bent part of the slide cover that covers both the sliding surfaces of the column and the knee is covered with an exclusion plate supported on the support shaft, and the upper and lower edges of the exclusion plate are attached to the upper and lower edges of the column and the knee. It is brought into contact with the slide cover surface stretched over the sliding surface at an appropriate angle, and when the slide cover is rolled up or pulled out, rotational moment acts on the removal plate to increase the force of contact with the slide cover. Therefore, the exclusion plate can obtain appropriate contact and adhesion force with the slide cover, and this exclusion plate prevents cutting debris from entering the guide roller and cutting oil and small cuttings from entering the guide roller as the slide cover moves. It is possible to completely prevent debris from being rolled up, thereby ensuring smooth winding up and pulling out of the slide cover.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; Fig. 1 is a side view of a vertical milling machine equipped with the inventive device, Fig. 2 is a perspective view of the inventive device, and Fig. 3 is a working state of the inventive device. FIG. 2...Column, 4...Column sliding surface, 5...Knee, 8...Knee sliding surface,
9...Saddle, 10...Table, 2
0...Cylinder, 21...Slide cover, 21a...Tip of cover, 25...
Bracket, 24...Guide roller, 24a
......Spindle, 30...Exclusion plate, 30a
...Support piece, 30b...Lower edge, 30
C: Upper edge, S: Cutting waste.

Claims (1)

[Scope of utility model registration request] A guide roller provided at the bent part of the slide cover that covers both the sliding surfaces of the column and knee is covered with an exclusion plate supported on this support shaft, and the upper and lower edges of the exclusion plate are placed above the sliding surfaces of the column and knee. The structure is such that the slide cover is brought into contact with the surface of the slide cover that is stretched at an appropriate angle, and when the slide cover is rolled up and pulled out, rotational moment acts on the removal plate to increase the force of contact with the slide cover. Cutting waste removal device for slide covers in machines.