JP3305872B2 - Removal device for drill ring - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for removing a drill ring used as a processing jig.

[0002]

2. Description of the Related Art In a drilling operation of a printed circuit board for an electronic circuit by a drill, in order to keep a processing depth of the drill constant,
Attach the drill ring to the drill before drilling. After the drilling is completed, the drill ring is removed for polishing the drill blade. A drill ring removal device is used to remove the drill ring.

[0003] A conventional drill ring removal device will be described with reference to FIG.

A handle 2 is pivotally attached to the upper end of the stand 1, a slide bearing 3 is fixed below the pivot point of the handle 2, and a push rod 4 is slidably fitted to the slide bearing 3, The upper end of a push rod 4 and the handle 2 are connected by an interlocking link 5, and the handle 2
Is transmitted to the push rod 4 via the interlocking link 5 as a straight-ahead operation. A block 6 is fixed to the push rod 4, and a spring 7 is suspended between the block 6 and the slide bearing 3 to urge the push rod 4 upward. At the lower end of the push rod 4, a punch pin 8 is provided continuously. The stand 1 is positioned so that a drill ring holder 9 disposed below the push rod 4 is coaxial with the push rod 4.
It is stuck to.

[0005] The removal of a drill ring fitted to a drill will be described below.

[0006] As shown in FIG. 3, the drill ring holder 9 is loaded with a drill 11 on which a drill ring 10 is fitted. The drill 11 is a drilling machine shown in FIG. 4. One by one is sequentially extracted from the drill post 13 of the drill cassette 12 and loaded into the drill ring holder 9.

When the handle 2 is pushed down, the push rod 4 is lowered, and the punch pin 8 comes into contact with the drill 11. When the drill 11 is further depressed, the punch pin 8 pushes the drill 11 and removes the drill 11 from the drill ring 10. At this time, the drill 11 is received by hand so as not to fall and damage the cutting edge.

When the hand is released from the handle 2, the spring 2 returns to the original position.

[0009]

In the above-mentioned conventional example, drills are withdrawn one by one from the drill cassette 12 and loaded into the drill ring withdrawing / unloading device.
Since it has escaped from 0, it takes time. Further, the removed drill 11 must be received by hand in order to prevent damage to the cutting edge, and there is a problem that the workability is poor and the cutting edge may be damaged if the hand is out of order.

The present invention has been made in view of the above circumstances, and has made it possible to remove a drill ring for a plurality of drills at a time, and to prevent a drill from which a drill ring has been removed from falling.

[0011]

According to the present invention, a movable base plate is provided on a column standing on a bottom plate so as to be able to move up and down, a drill cassette holder is provided above the column, and a cylinder is provided between the movable base plate and the bottom plate. Wherein the drill cassette is detachably attached to the drill cassette holder, a punch pin cassette is detachably attached to the movable base plate, and the punch pins implanted in the punch pin cassette correspond to the drill posts of the drill cassette. It is a feature.

[0012]

[Function] With the drill cassette loaded in the drill cassette holder, and with the pull-out pin cassette loaded in the movable base plate, when the movable base plate rises, the drill loaded in the drill post is pulled out of the drill ring and pulled out. The drill is left on the drill post.

[0013]

An embodiment of the present invention will be described below with reference to the drawings.

A column 16 is erected on the bottom plate 15, and the column 16
A movable base plate 18 is slidably provided via a bearing 17.
A concave portion 19 is formed at the center of the movable base plate 18, and a fitting ridge 20 is formed on a side surface of the concave portion 19. An air cylinder 29 is provided between the moving base plate 18 and the bottom plate 15, and the moving base plate 18 is moved up and down by the air cylinder 29.

A punch pin cassette 23 is fitted in the recess 19. The punching pin cassette 23 has a configuration in which punching pins 24 corresponding to the number and positions of the drill posts 13 of the drill cassette 12 are planted on a pedestal 25.
5 has a fitting groove 26 fitted to the fitting ridge 20.

A drill cassette holder 21 is fixed to the upper end of the support 16. A space is formed in the center of the drill cassette holder 21, and a fitting ridge 22 is formed on a side surface facing the space.

The drill cassette 12 is fitted in the space of the drill cassette holder 21. The drill cassette 1
2, a drill post 13 is implanted in a grid pattern on the cassette substrate 27 as shown in FIG. 4, and the drill post 13 is provided with a drill ring 1 as shown in FIG.
The drill 11 to which 0 is fitted is loaded. A fitting groove 28 is formed on a side surface of the drill cassette 12.

With the movable base plate 18 lowered, the punch pin cassette 23 is fitted to the movable base plate 18 and the drill cassette 12 is moved so that the tail end of the drill 11 is on the lower side. The drill cassette holder 2
1 is fitted.

Drill cassette 12, punching pin cassette 2
In a state in which the drills 3 are fitted, all the punch pins 24 and the drill 11 face exactly. The air cylinder 29 is operated to raise the moving base plate 18. As the movable base plate 18 rises, the punch pin 24 comes into contact with the drill 11, and the drill 11 is further removed from the drill ring 10.

The removed drill 11 remains in the drill post 13 without being dropped.

As described above, a large number of drill rings 10 can be simultaneously withdrawn from the drill 11 in units of a drill cassette, and it is not necessary to take measures to prevent the drill 11 from being dropped. .

The air cylinder 29 may be a hydraulic cylinder or a screw mechanism driven by a motor.

[0023]

According to the present invention as described above, the following excellent effects are exhibited.

In a series of operations, the drill rings of a plurality of drills in the drill cassette can be removed at a time.

The ring can be removed directly from the drill cassette mounted on the drilling machine.

By using pin cassettes having different numbers and positions of punching pins, an arbitrary drill ring can be pulled out.

Since the drill with the ring removed remains in the post, it is not necessary to catch the drill with the hand to prevent damage.

[Brief description of the drawings]

FIG. 1 is a front view showing one embodiment of the present invention.

FIG. 2 is a side view of a conventional example.

FIG. 3 is an enlarged sectional view of a portion A in FIG. 2;

FIG. 4 is a perspective view of a drill cassette to be loaded in the drilling machine.

FIG. 5 is a sectional view of a drill post portion of the drill cassette.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Drill 12 Drill cassette 15 Bottom plate 16 Prop 18 Moving base plate 21 Drill cassette holder 23 Drill pin cassette 29 Air cylinder

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B23P 19/00-21/00 B23B 49/00

Claims (1)

(57) [Claims] 1. A movable base plate is provided on a column standing on a bottom plate so as to be able to move up and down, a drill cassette holder is provided above the column, and a cylinder is provided between the movable base plate and the bottom plate. The drill cassette is detachable, and the punch pin cassette is detachable on the moving base plate,
A removal device for a drill ring, wherein a removal pin implanted in the removal pin cassette corresponds to a drill post of a drill cassette.