JP2580173Y2 - Drilling machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drilling machine.

[0002]

2. Description of the Related Art Conventionally, for example, in the manufacture of woodwork furniture, a motor holding base 2 is slidably provided on a base 1 as shown in FIG. A motor (not shown) is advanced in the direction of the arrow shown in the figure. The motor (3) is provided with a blade (4), and the workpiece is fixed to the surface plate (5) in opposition to the blade (4). The jig 8 has a workpiece 6
Is used, and a horizontal drilling machine is used in which the motor base 2 is advanced to make a hole 7 in the workpiece 6 by the blade 4.

[0003] The depth of the hole 7 formed in the workpiece 6 is determined by the position of the tip of the blade 4 and the workpiece 6 set since the amount of advance of the motor holder 2 is always constant. Determined by the tip position.

[0004]

In the drilling operation using the conventional horizontal drilling machine, it is necessary to drill holes of various diameters and holes of various depths, so that the length of the blade and the jig for the workpiece are required. Is changing the position. Therefore, in order to drill a hole of a predetermined depth in the workpiece 6, a drilling operation, an operation of measuring the depth of the formed hole, and a fine adjustment operation are repeated many times to obtain an accurate depth. Holes had to be drilled, which was extremely cumbersome and time consuming.

[0005] Further, even if the adjustment time can be reduced by computer control, the apparatus becomes expensive,
It is difficult to adopt this in general woodworking plants.

Accordingly, an object of the present invention is to propose a drilling machine in which the depth-setting operation can be performed extremely easily and the structure thereof is also simple.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a fixed guide board (11) and a guide board (1).
1) An adjustment plate (12) provided on the adjustment plate (12) so as to be able to move back and forth, and a motor holding plate (1) provided on the adjustment plate (12) so as to be able to move back and forth.
3), a motor (14) fixed on the motor holding plate (13), a blade chuck (15) provided on the front surface of the motor (14), and an operation of moving the adjusting plate (12) back and forth. A handle (18) and the motor holding board (13)
(17) for moving the cylinder back and forth, and the adjusting plate (1)
Tool length scale plate fixed to the side of 2) in the front-rear direction (19)
A jig position scale plate (20) fixed in parallel to the side surface of the guide panel (11) at the same position as the blade length scale plate (19); a tool length scale plate (19); First slide bar (21) slidably provided between scale plates (20)
And a second slide scale (22), and on the upper edge of the first slide scale (21), the blade length scale plate (19).
The index (21a) corresponding to the scale (19a) of is displayed,
A depth scale (21b) is displayed on the lower edge, an index (22a) corresponding to the depth scale (21b) is displayed on the upper edge of the second slide scale (22), and the jig is displayed on the lower edge. An index (22b) corresponding to the scale (20a) of the position scale plate (20) is displayed.

[0008]

First, the length of the blade (16) to be used is measured with a caliper. Next, the first slide scale (21) is moved so that the index (21a) is adjusted to the scale of a numerical value equivalent to the blade length in the scale (19a) of the blade length scale plate (19).

Next, the second slide scale (22) is moved so that its index (22b) is adjusted to the scale (20a) on the jig position scale plate (20) for the workpiece. At this time, when the workpiece jig (8) is set at the reference position, it is adjusted to the reference value of the scale (20a).

Next, the operation handle (18) is rotated to move the adjusting plate (12), and the index (22a) is set to the numerical value corresponding to the depth of the hole to be drilled on the depth scale (21b).

The adjusting operation is completed as described above. Next, the cylinder (17) is operated to advance the motor holding plate (13).
The cutting tool (16) provided on the chuck (15) is advanced together with the motor (14) to perform a drilling operation.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention shown in FIGS. 1 to 8 is applied to a horizontal drilling machine will be described. In FIG. 1, reference numeral 10 denotes a base on which a guide panel 11 is fixed. On the upper surface of the guide panel 11, a dovetail-shaped guide rail 11a is formed in the front-rear direction (the left-right direction in the figure).

Reference numeral 12 denotes an adjusting plate which is slidably fitted and mounted on the guide rail 11a by means of a dovetail groove 12a, and moves in the front-rear direction. On the upper surface of the adjusting plate 12, a dovetailed guide rail 12b is formed in the front-rear direction.

Reference numeral 13 denotes a motor holding plate, which is slidably fitted in the dovetail groove 13a on the guide rail 12b and moves in the front-rear direction. Reference numeral 14 denotes a motor fixed on the motor holding board 13. A chuck 15 for holding a blade is provided at a front end of a rotating shaft of the motor 14, and a blade 16 is detachably provided on the chuck 15.

An air cylinder 17 has a rod 17a.
Is connected to the motor holding plate 13 so that the motor holding plate 13 moves back and forth as the rod 17a advances and retreats.

Reference numeral 18 denotes an adjusting handle, the handle shaft 18a of which is screwed to a rear portion of the adjusting plate 12;
The forward / backward rotation of 8 causes the adjusting plate 12 to move back and forth.

Reference numeral 19 denotes a blade length scale plate fixed to the side surface of the adjusting plate 12 in the front-rear direction, and a scale 19a for adjusting the length of the blade to be used is displayed in mm. 2
Reference numeral 0 denotes a jig position scale plate fixed on the side surface of the guide plate 11 in the front-rear direction in parallel with the blade scale plate 19, and a scale 20a for determining a reference position of the workpiece jig 8 is provided. It is displayed in mm.

The blade length scale plate 19 and the jig position scale plate 2
Between 0 and the first slide ruler 21 located at the top,
The second slide scales 22 are provided at the lower part so as to be slidable in the front-rear direction, respectively.

An index 21a for the scale 19a of the blade length scale plate 19 is displayed on the upper edge of the first slide scale 21, and a depth scale 21b is displayed in mm on the lower edge.

An index 22a for the depth scale 21b is displayed at the upper edge of the second slide scale 22, and an index 22 for the scale 20a of the jig position scale plate 20 is displayed at the lower edge.
b is displayed.

The first slide scale 21 has a pin 2
3 is protruded, and the pin 23 can be slid with a finger. The second slide scale 22 has a pin 24 protruding therefrom, and can be slid with a finger on the pin 24.

The mounting structure of the first slide scale 21 and the second slide scale 22 is as shown in FIG. That is, the rail groove 19 is provided on the lower surface of the blade length scale plate 19.
b, and a rail 21c formed on the upper surface of the first slide scale 21 is slidably fitted to the jig position scale plate 2.
A rail 20b is formed on the upper surface of the second slide scale 22, and a rail groove 22c formed on the lower surface of the second slide scale 22 is slidably fitted therein.

Further, a guide rail 25 is fixed to the adjusting plate 12 between the first and second slide scales 21 and 22, and a lower portion of the first slide scale 21 is slidably fitted thereto. The upper part of the second slide scale 22 is slidably fitted.

In FIG. 2, reference numerals 26, 27 and 28 denote mounting screws. At the front of the horizontal drilling machine as described above,
As shown in FIG. 2, a surface plate 5 is provided, and a work jig 8 is provided on the upper surface thereof. The work 6 is set by the jig 8 so that a drilling position is opposed to the blade 4. Have been. Next, the work procedure will be described. FIG. 3 shows that the workpiece jig 8 has the reference 0, and the chuck 15 has
The figure shows a state in which a blade 16a having a length of mm is provided,
a is located at 80 mm on the scale 19 a indicating the length of the blade,
The index 22a is 40 mm on the scale 21b indicating the depth of the processing hole.
, And the index 22b is located at the reference 0 of the scale 20a indicating the jig position.

A procedure for drilling a hole having a depth of 40 mm from a blade having a length of 70 mm from this state will be described. Procedure 1. As shown in FIG. 4, the length L ₁ of the blade 16 to be used is measured by a caliper 29. This length is 70m
m.

Procedure 2. As shown in FIG. 5, the first slide scale 21 is moved backward, and its index 21a is set on a scale 1 indicating the length of the blade.
Set to 70a scale of 9a. Procedure 3. As shown in FIG. 6, the second slide scale 22 is moved so that the index 22b is adjusted to the reference value of the jig position scale 20a. In the case of the figure, since the workpiece jig 8 is at the reference position 0 and the index 22b has already set the 0 scale, the second slide scale 22 does not need to move.

Procedure 4. As shown in FIG. 7, the operation handle 18 is rotated, and the adjustment plate 12 is advanced. At this time, since the first slide scale 21 is insulated from the second slide scale 22 and mounted on the guide rail 25 fixed to the adjustment board 12, the first slide scale 21 moves together with the adjustment board 12. I do. Then, the control panel 12 is stopped at a position where the 40 scales of the depth scale 21b match the index 22a.

After the positioning is adjusted by the above procedure, the motor 14 is driven to rotate, air is press-fitted into the air cylinder 17 and the rod 17a is moved forward by a predetermined amount.
At the same time, the motor 14 and the blade 16 are advanced by a predetermined amount, and a hole 7 having a predetermined depth is formed in the workpiece 6 by the rotating blade 16.

Next, the reason why the predetermined depth of the hole is determined by the above procedure will be described with reference to FIG. Incidentally, the forward amount L ₂ of the motor holding plate 13 by the air cylinder 17 is always constant amount. Since the workpiece jig 8 is a reference jig, the mounting position of the workpiece jig 6, that is, the front end thereof is set as the reference point 0. Since the same jig is used for the workpiece 8 in FIG. 5 in which the blade is changed, the index 22b in the procedure 3 is also set to 0 on the jig position scale 20a.

In FIG. 8, the depth L ₃ of the hole 7 is L ₅ −L
₆ Here L ₅ represents tool length, L ₆ is a distance between the tip surface of the workpiece 6 that is fixed to the front end of the chuck 15 which is advanced to the drilling. Therefore, if the blade length of the replaced blade 16 is set to the above-mentioned length L ₇ , if the adjusting plate 12 is further advanced in advance by the short distance L ₈ , the same hole depth L ₃ can be obtained.

Therefore, from an 80 mm blade to 70 mm
10mm to drill a hole of the same depth by changing to a blade of
Only the adjusting plate 12 is adjusted forward in advance and the chuck 15 is
mm.

Therefore, in the procedure 2 (FIG. 5), the first
By retracting the slide scale 21 by 10 mm from the state shown in FIG. 3, the index 22a is located at a value of 30 mm, which is 10 mm smaller than the position shown in FIG. 3, on the scale 21b. 1
2 to advance the scale 21b on the first slide scale 21.
By matching the 40 mm scale to the index 22a,
The adjustment plate 12 is advanced by 10 mm, and as a result, the position of the tip of the chuck 15 that moves integrally with the adjustment plate 12 is also set to a position advanced by 10 mm from the state of FIG. 3, and the above-described adjustment is performed. It will be.

Next, as described above, the blade 16 is used which is shorter than that shown in FIG. 3 by 10 mm and the jig 8 for the workpiece is projected longer by 15 mm than the standard one in the direction of the blade. The case where it is used will be described.

In this case, in the procedure 3 (FIG. 6), the second slide scale 22 is retracted so that the index 22b thereof is coincident with +15 mm of the jig position scale 20a. As a result, the index 22a is also 15 m
m, and in step 3 (FIG. 6), the index 22a
Is located at 45 mm on the depth scale 21b.

For this reason, in the procedure 4 (FIG. 7), if the depth scale 21b is adjusted so that 40 mm is located at the index 22a, the adjustment plate 12 is set back by 5 mm.

That is, as compared with the state shown in FIG. 8, the advance of +10 mm by the long blade and the retreat of −1 due to the work piece jig 8 being set forward from the reference point 0 are −1.
The chuck 15 is retracted and set by -5 mm, which is a difference from 5 mm, and a hole having a predetermined depth of 40 mm is formed.

If the depth of the hole to be formed is to be changed, for example, if it is desired to be 50 mm, the scale of 50 mm on the first slide scale 21 is adjusted to the index 22a in the procedure 4 (FIG. 7).

The time required for each of the above procedures is 6 seconds for procedure 1, 6 seconds for procedure 2, and 3
Was 5 seconds, and procedure 4 was 8 seconds, for a total of 20 seconds. On the other hand, in the conventional method in which the drilling operation, the measuring operation, and the fine adjustment are repeated, it took 208 seconds to accurately obtain the depth of the hole.

As a result, according to the present invention, the depth adjustment was completed about 10 times faster. The above embodiment shows an example in which the present invention is applied to a horizontal drilling machine.
The present invention can be applied to an upper drilling machine or a lower drilling machine. In this case, the same operation and effect as described above can be exerted.

[0040]

[Effects of the Invention] As described above, according to the present invention, when a blade having a different length is used, a jig for a workpiece different from a standard one is used, and a hole having a different depth is formed. The work of adjusting the depth can be performed in a very short time as compared with the conventional work, can be performed accurately, and the work can be streamlined, and the structure is simple.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional perspective view showing a scale plate and a slide scale.

FIG. 3 is a side view showing a state before an adjustment operation.

FIG. 4 is a diagram showing procedure 1.

FIG. 5 is a diagram showing a procedure 2;

FIG. 6 is a diagram showing a procedure 3;

FIG. 7 is a diagram showing a procedure 4;

FIG. 8 is a diagram illustrating adjustment.

FIG. 9 is a side view showing a conventional structure.

[Explanation of symbols]

8 Workpiece jig 21 First slide scale 11 Guide board 22 Second slide scale 12 Adjustment board 19a, 20a, 2
0b Scale 13 Motor holding board 21a, 22b, 2
2a Index 14 Motor 15 Chuck 16 Knife 17 Cylinder 18 Operation handle 19 Knife length scale plate 20 Jig position scale plate

Claims (1)

(57) [Scope of request for utility model registration] 1. A fixed guide board (11), said guide board (1)
1) An adjustment plate (12) provided on the adjustment plate (12) so as to be able to move back and forth, and a motor holding plate (1) provided on the adjustment plate (12) so as to be able to move back and forth.
3), a motor (14) fixed on the motor holding plate (13), a blade chuck (15) provided on the front surface of the motor (14), and an operation of moving the adjusting plate (12) back and forth. A handle (18) and the motor holding board (13)
(17) for moving the cylinder back and forth, and the adjusting plate (1)
Tool length scale plate fixed to the side of 2) in the front-rear direction (19)
A jig position scale plate (20) fixed in parallel to the side surface of the guide panel (11) at the same position as the blade length scale plate (19); a tool length scale plate (19); First slide bar (21) slidably provided between scale plates (20)
And a second slide scale (22), and on the upper edge of the first slide scale (21), the blade length scale plate (19).
The index (21a) corresponding to the scale (19a) of is displayed,
A depth scale (21b) is displayed on the lower edge, an index (22a) corresponding to the depth scale (21b) is displayed on the upper edge of the second slide scale (22), and the jig is displayed on the lower edge. A drilling machine characterized by displaying indices (22b) corresponding to the scales (20a) of the position scale plate (20).